rb file headers change, org-mode tangle whitespace issue

179 files changed, 9406 insertions, 9048 deletions

diff --git a/lib/sisu.rb b/lib/sisu.rb
index 7fb49eba..155ad404 100644
--- a/lib/sisu.rb
+++ b/lib/sisu.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     sisu
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    sisu
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_libs
   require_relative 'sisu/hub'                               # sisu/hub.rb
   require_relative 'sisu/se'                                # sisu/se.rb
diff --git a/lib/sisu/air.rb b/lib/sisu/air.rb
index 3644ebc6..8f00b89f 100644
--- a/lib/sisu/air.rb
+++ b/lib/sisu/air.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     misc
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    misc
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Air
   require_relative 'se_hub_particulars'                 # se_hub_particulars.rb
   class Source
diff --git a/lib/sisu/ao.rb b/lib/sisu/ao.rb
index 02dbad3e..3e90a8a1 100644
--- a/lib/sisu/ao.rb
+++ b/lib/sisu/ao.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     abstraction
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    abstraction
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_AO
   require_relative 'se'                                 # se.rb
     include SiSU_Env
diff --git a/lib/sisu/ao_appendices.rb b/lib/sisu/ao_appendices.rb
index 6b0d09e5..3e564772 100644
--- a/lib/sisu/ao_appendices.rb
+++ b/lib/sisu/ao_appendices.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     abstraction
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    abstraction
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_AO_Appendices
   class Glossary
     def initialize(md,data)
diff --git a/lib/sisu/ao_character_check.rb b/lib/sisu/ao_character_check.rb
index 434902c2..550e500c 100644
--- a/lib/sisu/ao_character_check.rb
+++ b/lib/sisu/ao_character_check.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     abstraction
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    abstraction
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_AO_CharacterCheck
   class Check
     def initialize(data)
diff --git a/lib/sisu/ao_composite.rb b/lib/sisu/ao_composite.rb
index 81b3808f..0af877a1 100644
--- a/lib/sisu/ao_composite.rb
+++ b/lib/sisu/ao_composite.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     abstraction
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    abstraction
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Assemble
   require_relative 'se'                                 # se.rb
   require_relative 'utils_composite'                    # utils_composite.rb
diff --git a/lib/sisu/ao_doc_objects.rb b/lib/sisu/ao_doc_objects.rb
index 9b18af2b..7a0766b8 100644
--- a/lib/sisu/ao_doc_objects.rb
+++ b/lib/sisu/ao_doc_objects.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     abstraction
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    abstraction
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_AO_DocumentStructure
   class Extract
     def extract(h,o)
diff --git a/lib/sisu/ao_doc_str.rb b/lib/sisu/ao_doc_str.rb
index 08394b92..a5629dcd 100644
--- a/lib/sisu/ao_doc_str.rb
+++ b/lib/sisu/ao_doc_str.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     abstraction
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    abstraction
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_AO_DocumentStructureExtract
   require_relative 'ao_persist'                     # ao_persist.rb
   class Instantiate < SiSU_Param::Parameters::Instructions
diff --git a/lib/sisu/ao_endnotes.rb b/lib/sisu/ao_endnotes.rb
index 96b217e7..f41efce9 100644
--- a/lib/sisu/ao_endnotes.rb
+++ b/lib/sisu/ao_endnotes.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     abstraction
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    abstraction
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_AO_Endnotes
   class Endnotes
     def initialize(md,data,endnote_array=nil)
diff --git a/lib/sisu/ao_expand_insertions.rb b/lib/sisu/ao_expand_insertions.rb
index 38e05d9c..27866b56 100644
--- a/lib/sisu/ao_expand_insertions.rb
+++ b/lib/sisu/ao_expand_insertions.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     abstraction
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    abstraction
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_AO_Insertions
   class Insertions
     def initialize(md,data)
diff --git a/lib/sisu/ao_hash_digest.rb b/lib/sisu/ao_hash_digest.rb
index 853fc9e6..7c327ba4 100644
--- a/lib/sisu/ao_hash_digest.rb
+++ b/lib/sisu/ao_hash_digest.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     abstraction
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    abstraction
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_AO_Hash
   require_relative 'shared_markup_alt.rb'               #shared_markup_alt.rb
   class ObjectDigest
diff --git a/lib/sisu/ao_idx.rb b/lib/sisu/ao_idx.rb
index 506c2cc7..8b9835a8 100644
--- a/lib/sisu/ao_idx.rb
+++ b/lib/sisu/ao_idx.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     abstraction
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    abstraction
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_AO_BookIndex
   class BookIndex
     def initialize(md,data,env=nil)
diff --git a/lib/sisu/ao_images.rb b/lib/sisu/ao_images.rb
index ce685090..f013a5c7 100644
--- a/lib/sisu/ao_images.rb
+++ b/lib/sisu/ao_images.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     abstraction
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    abstraction
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_AO_Images
   class Images
     begin
diff --git a/lib/sisu/ao_metadata.rb b/lib/sisu/ao_metadata.rb
index 165d5fb2..30915244 100644
--- a/lib/sisu/ao_metadata.rb
+++ b/lib/sisu/ao_metadata.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     abstraction
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    abstraction
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_AO_Metadata
   class Metadata
     def initialize(md,metad)
diff --git a/lib/sisu/ao_misc_arrange.rb b/lib/sisu/ao_misc_arrange.rb
index 5f107f04..b70aa43f 100644
--- a/lib/sisu/ao_misc_arrange.rb
+++ b/lib/sisu/ao_misc_arrange.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     abstraction
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    abstraction
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_AO_MiscArrangeText
   class SI
     def initialize(md,data)
diff --git a/lib/sisu/ao_numbering.rb b/lib/sisu/ao_numbering.rb
index 7cfff564..615b45d6 100644
--- a/lib/sisu/ao_numbering.rb
+++ b/lib/sisu/ao_numbering.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     abstraction
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    abstraction
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_AO_Numbering
   class Numbering
     attr_accessor :obj,:osp,:ocn,:lv,:name,:index,:comment
diff --git a/lib/sisu/ao_persist.rb b/lib/sisu/ao_persist.rb
index 9c7d32c4..316ad28c 100644
--- a/lib/sisu/ao_persist.rb
+++ b/lib/sisu/ao_persist.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     abstraction
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    abstraction
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_AO_Persist
   class Persist
     @@persistance=nil
diff --git a/lib/sisu/ao_syntax.rb b/lib/sisu/ao_syntax.rb
index 163d080f..700d997d 100644
--- a/lib/sisu/ao_syntax.rb
+++ b/lib/sisu/ao_syntax.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     abstraction
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    abstraction
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_AO_Syntax
   class Words
     def initialize(line,md,mkp)
diff --git a/lib/sisu/cgi.rb b/lib/sisu/cgi.rb
index 4836f385..18857117 100644
--- a/lib/sisu/cgi.rb
+++ b/lib/sisu/cgi.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     cgi
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    cgi
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module  SiSU_CGI                                        #% database building documents
   require_relative 'se'                                 # se.rb
   require_relative 'cgi_pgsql'                          # cgi_pgsql.rb
diff --git a/lib/sisu/cgi_pgsql.rb b/lib/sisu/cgi_pgsql.rb
index 490ab62d..7fd18bd9 100644
--- a/lib/sisu/cgi_pgsql.rb
+++ b/lib/sisu/cgi_pgsql.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     cgi
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    cgi
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module  SiSU_CGI_PgSQL                                  #% database building documents
   require_relative 'se'                                 # se.rb
   require_relative 'cgi_sql_common'                     # cgi_sql_common.rb
diff --git a/lib/sisu/cgi_sql_common.rb b/lib/sisu/cgi_sql_common.rb
index 2c75393e..4705e5e9 100644
--- a/lib/sisu/cgi_sql_common.rb
+++ b/lib/sisu/cgi_sql_common.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     cgi
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    cgi
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_CGI_SQL
   class CGI_Common
     def initialize(webserv,opt,image_src,dir)
diff --git a/lib/sisu/cgi_sqlite.rb b/lib/sisu/cgi_sqlite.rb
index cc77c45e..c822744d 100644
--- a/lib/sisu/cgi_sqlite.rb
+++ b/lib/sisu/cgi_sqlite.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     cgi
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    cgi
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module  SiSU_CGI_SQLite                                 #% database building documents
   require_relative 'se'                                 # se.rb
   require_relative 'cgi_sql_common'                     # cgi_sql_common.rb
diff --git a/lib/sisu/conf.rb b/lib/sisu/conf.rb
index 800add9c..52de51be 100644
--- a/lib/sisu/conf.rb
+++ b/lib/sisu/conf.rb
@@ -1,54 +1,56 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     config
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    config
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Initialize
   require_relative 'se'                                 # se.rb
     include SiSU_Env
diff --git a/lib/sisu/constants.rb b/lib/sisu/constants.rb
index da25b7cd..d4e47aed 100644
--- a/lib/sisu/constants.rb
+++ b/lib/sisu/constants.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     shared
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    shared
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 YEAR='2021'
 Sfx={
   txt:                       '.txt',
diff --git a/lib/sisu/css.rb b/lib/sisu/css.rb
index 6994e04b..ec7c9396 100644
--- a/lib/sisu/css.rb
+++ b/lib/sisu/css.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     css
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    css
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Style
   require_relative 'se'                                 # se.rb
   require_relative 'html_parts'                         # html_parts.rb
diff --git a/lib/sisu/db_columns.rb b/lib/sisu/db_columns.rb
index 8722d38d..d3625879 100644
--- a/lib/sisu/db_columns.rb
+++ b/lib/sisu/db_columns.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     db sql
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    db sql
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_DbColumns
   require_relative 'se'                                # se.rb
   require_relative 'db_sqltxt'                         # db_sqltxt.rb
diff --git a/lib/sisu/db_create.rb b/lib/sisu/db_create.rb
index e61eb7d0..40328349 100644
--- a/lib/sisu/db_create.rb
+++ b/lib/sisu/db_create.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     db sql
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    db sql
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_DbCreate
   require_relative 'db_columns'                         # db_columns.rb
   class Create < SiSU_DbColumns::Columns
diff --git a/lib/sisu/db_dbi.rb b/lib/sisu/db_dbi.rb
index d453dfe0..9d5ac2b1 100644
--- a/lib/sisu/db_dbi.rb
+++ b/lib/sisu/db_dbi.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     db sql
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    db sql
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module  SiSU_DbDBI
   require_relative 'db_columns'                                             # db_columns.rb
   require_relative 'db_tests'                                               # db_tests.rb
diff --git a/lib/sisu/db_drop.rb b/lib/sisu/db_drop.rb
index aa91a8a6..c8d24aeb 100644
--- a/lib/sisu/db_drop.rb
+++ b/lib/sisu/db_drop.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     db sql
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    db sql
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_DbDrop
   require_relative 'utils_response'                   # utils_response.rb
   class Drop
diff --git a/lib/sisu/db_import.rb b/lib/sisu/db_import.rb
index 84cbc911..ea1d31bd 100644
--- a/lib/sisu/db_import.rb
+++ b/lib/sisu/db_import.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     db sql
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    db sql
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_DbImport
   require_relative 'db_columns'                         # db_columns.rb
   require_relative 'db_load_tuple'                      # db_load_tuple.rb
diff --git a/lib/sisu/db_indexes.rb b/lib/sisu/db_indexes.rb
index 519a0c11..dc34075b 100644
--- a/lib/sisu/db_indexes.rb
+++ b/lib/sisu/db_indexes.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     db sql
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    db sql
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_DbIndex
   class Index                                           # create documents Indexes def initialize(opt,conn='',sql_type)
     def initialize(opt,conn,file,sql_type)
diff --git a/lib/sisu/db_load_tuple.rb b/lib/sisu/db_load_tuple.rb
index 84561fb7..f197d1ab 100644
--- a/lib/sisu/db_load_tuple.rb
+++ b/lib/sisu/db_load_tuple.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     db sql
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    db sql
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_DbTuple
   require_relative 'db_columns'                         # db_columns.rb
   class LoadDocuments
diff --git a/lib/sisu/db_remove.rb b/lib/sisu/db_remove.rb
index 26a232a9..d40e8dec 100644
--- a/lib/sisu/db_remove.rb
+++ b/lib/sisu/db_remove.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     db sql
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    db sql
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_DbRemove
   class Remove
     include SiSU_DbAction
diff --git a/lib/sisu/db_select.rb b/lib/sisu/db_select.rb
index d2e17835..72f6d927 100644
--- a/lib/sisu/db_select.rb
+++ b/lib/sisu/db_select.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     db sql
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    db sql
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_DbAction
   def db_action(sdb)
     @sdb=sdb
diff --git a/lib/sisu/db_sqltxt.rb b/lib/sisu/db_sqltxt.rb
index 7adee45c..8050a69e 100644
--- a/lib/sisu/db_sqltxt.rb
+++ b/lib/sisu/db_sqltxt.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     db sql
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    db sql
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_DbText
   class Prepare
     def special_character_escape(str)
diff --git a/lib/sisu/db_tests.rb b/lib/sisu/db_tests.rb
index d6e81921..1b7e8f88 100644
--- a/lib/sisu/db_tests.rb
+++ b/lib/sisu/db_tests.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     db sql
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    db sql
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_DbTests
   class Test
     def initialize(info,opt)
diff --git a/lib/sisu/dbi.rb b/lib/sisu/dbi.rb
index d2bddb1d..48331f3d 100644
--- a/lib/sisu/dbi.rb
+++ b/lib/sisu/dbi.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     db sql
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    db sql
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module  SiSU_DBI                                                                 #% database building
   require_relative 'se'                                 # se.rb
     include SiSU_Env; include SiSU_Screen
diff --git a/lib/sisu/dbi_discrete.rb b/lib/sisu/dbi_discrete.rb
index a80114cf..08a08670 100644
--- a/lib/sisu/dbi_discrete.rb
+++ b/lib/sisu/dbi_discrete.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     db sql
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    db sql
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module  SiSU_DBI_Discrete                               #% database building
   require_relative 'se'                                 # se.rb
     include SiSU_Env; include SiSU_Screen
diff --git a/lib/sisu/digests.rb b/lib/sisu/digests.rb
index fcd7a753..84baf8f5 100644
--- a/lib/sisu/digests.rb
+++ b/lib/sisu/digests.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     digests
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    digests
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_DigestView
   require_relative 'se_hub_particulars'                 # se_hub_particulars.rb
   require_relative 'prog_text_translation'              # prog_text_translation.rb
diff --git a/lib/sisu/dp.rb b/lib/sisu/dp.rb
index 85b71c10..ce069cd4 100644
--- a/lib/sisu/dp.rb
+++ b/lib/sisu/dp.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     param
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    param
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Param
   begin
     require 'uri'
diff --git a/lib/sisu/dp_identify_markup.rb b/lib/sisu/dp_identify_markup.rb
index 8439bff3..0e9d2ee3 100644
--- a/lib/sisu/dp_identify_markup.rb
+++ b/lib/sisu/dp_identify_markup.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     param
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    param
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_MarkupType
   class MarkupIdentify
     @@version={}
diff --git a/lib/sisu/dp_make.rb b/lib/sisu/dp_make.rb
index 25dfca6f..e0f376ef 100644
--- a/lib/sisu/dp_make.rb
+++ b/lib/sisu/dp_make.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     param
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    param
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Param_Make
   class MdMake
     def initialize(str,opt,env)
diff --git a/lib/sisu/embedded.rb b/lib/sisu/embedded.rb
index 066cc39a..9d758ca4 100644
--- a/lib/sisu/embedded.rb
+++ b/lib/sisu/embedded.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     misc
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    misc
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Embedded
   require_relative 'dp'                                 # dp.rb
     include SiSU_Param
diff --git a/lib/sisu/errors.rb b/lib/sisu/errors.rb
index bff4e0e8..26ca8d81 100644
--- a/lib/sisu/errors.rb
+++ b/lib/sisu/errors.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     misc
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    misc
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Errors
   require_relative 'se'                                 # se.rb
     include SiSU_Env; include SiSU_Screen
diff --git a/lib/sisu/generic_parts.rb b/lib/sisu/generic_parts.rb
index 4b1e0e6f..bef945a0 100644
--- a/lib/sisu/generic_parts.rb
+++ b/lib/sisu/generic_parts.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     shared
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    shared
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Parts_Generic
   def the_url
     def urify(uri)
diff --git a/lib/sisu/git.rb b/lib/sisu/git.rb
index 3b0a040d..13894f66 100644
--- a/lib/sisu/git.rb
+++ b/lib/sisu/git.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     misc
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    misc
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Git
   require_relative 'dp'                                 # dp.rb
   require_relative 'se'                                 # se.rb
diff --git a/lib/sisu/html.rb b/lib/sisu/html.rb
index ffe0b7b7..511ddc43 100644
--- a/lib/sisu/html.rb
+++ b/lib/sisu/html.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     html
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    html
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_HTML
   begin
     require 'pstore'
diff --git a/lib/sisu/html_concordance.rb b/lib/sisu/html_concordance.rb
index b80d2761..c6744d92 100644
--- a/lib/sisu/html_concordance.rb
+++ b/lib/sisu/html_concordance.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     html
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    html
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Concordance
   require_relative 'se_hub_particulars'                 # se_hub_particulars.rb
     include SiSU_Particulars
diff --git a/lib/sisu/html_format.rb b/lib/sisu/html_format.rb
index 079edb3f..45710d44 100644
--- a/lib/sisu/html_format.rb
+++ b/lib/sisu/html_format.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     html
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    html
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_HTML_Format
   require_relative 'html_parts'                         # html_parts.rb
   class ParagraphNumber
diff --git a/lib/sisu/html_harvest.rb b/lib/sisu/html_harvest.rb
index 22de54d7..67e71f53 100644
--- a/lib/sisu/html_harvest.rb
+++ b/lib/sisu/html_harvest.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     harvest
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    harvest
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Harvest
   @@the_idx_topics,@@the_idx_authors={},{}
   class Source
diff --git a/lib/sisu/html_harvest_author_format.rb b/lib/sisu/html_harvest_author_format.rb
index 20f9d3d0..7459fe30 100644
--- a/lib/sisu/html_harvest_author_format.rb
+++ b/lib/sisu/html_harvest_author_format.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     harvest
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    harvest
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_FormatAuthor
   class Author
     def initialize(author_param)
diff --git a/lib/sisu/html_harvest_authors.rb b/lib/sisu/html_harvest_authors.rb
index fbf6b9bc..a28c9b64 100644
--- a/lib/sisu/html_harvest_authors.rb
+++ b/lib/sisu/html_harvest_authors.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     harvest
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    harvest
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_HarvestAuthors
   require_relative 'html_harvest_author_format'          # html_harvest_author_format.rb
   require_relative 'html_parts'                          # html_parts.rb
diff --git a/lib/sisu/html_harvest_topics.rb b/lib/sisu/html_harvest_topics.rb
index d6715aa0..85726bee 100644
--- a/lib/sisu/html_harvest_topics.rb
+++ b/lib/sisu/html_harvest_topics.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     harvest
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    harvest
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_HarvestTopics
   require_relative 'html_harvest_author_format'          # html_harvest_author_format.rb
   require_relative 'html_parts'                          # html_parts.rb
diff --git a/lib/sisu/html_lite_shared.rb b/lib/sisu/html_lite_shared.rb
index f4260fa8..6a05b5bb 100644
--- a/lib/sisu/html_lite_shared.rb
+++ b/lib/sisu/html_lite_shared.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     html
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    html
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_FormatShared
   require_relative 'html_parts'                         # html_parts.rb
   class CSS_Format
diff --git a/lib/sisu/html_manifest.rb b/lib/sisu/html_manifest.rb
index 28117a00..f61edd97 100644
--- a/lib/sisu/html_manifest.rb
+++ b/lib/sisu/html_manifest.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     html
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    html
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Manifest
   require_relative 'se'                                 # se.rb
     include SiSU_Env
diff --git a/lib/sisu/html_minitoc.rb b/lib/sisu/html_minitoc.rb
index 9346af8b..495328c2 100644
--- a/lib/sisu/html_minitoc.rb
+++ b/lib/sisu/html_minitoc.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     html
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    html
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_HTML_MiniToc
   require_relative 'html_tune'                        # html_tune.rb
     include SiSU_HTML_Tune
diff --git a/lib/sisu/html_parts.rb b/lib/sisu/html_parts.rb
index 60e0b4ea..d57cc0a9 100644
--- a/lib/sisu/html_parts.rb
+++ b/lib/sisu/html_parts.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     html
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    html
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Parts_HTML
   require_relative 'generic_parts'                       # generic_parts.rb
   include SiSU_Parts_Generic
diff --git a/lib/sisu/html_persist.rb b/lib/sisu/html_persist.rb
index 843d9414..11adf99a 100644
--- a/lib/sisu/html_persist.rb
+++ b/lib/sisu/html_persist.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     html
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    html
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_HTML_Persist
   class Persist
     @@persist=nil
diff --git a/lib/sisu/html_promo.rb b/lib/sisu/html_promo.rb
index b7754e99..6b1f3e9c 100644
--- a/lib/sisu/html_promo.rb
+++ b/lib/sisu/html_promo.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     html
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    html
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_HTML_Promo
   require_relative 'se'                                 # se.rb
     include SiSU_Env
diff --git a/lib/sisu/html_scroll.rb b/lib/sisu/html_scroll.rb
index 650c90dd..6cd97022 100644
--- a/lib/sisu/html_scroll.rb
+++ b/lib/sisu/html_scroll.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     html
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    html
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_HTML_Scroll
   require_relative 'html_shared'                        # html_shared.rb
   require_relative 'html'                               # html.rb
diff --git a/lib/sisu/html_segments.rb b/lib/sisu/html_segments.rb
index 99f6b760..4df48f3a 100644
--- a/lib/sisu/html_segments.rb
+++ b/lib/sisu/html_segments.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     html
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    html
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_HTML_Seg
   require_relative 'html_shared'                        # html_shared.rb
   require_relative 'html'                               # html.rb
diff --git a/lib/sisu/html_shared.rb b/lib/sisu/html_shared.rb
index 90f60d0a..ef02e6d9 100644
--- a/lib/sisu/html_shared.rb
+++ b/lib/sisu/html_shared.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     html
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    html
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_HTML_Shared
   require_relative 'html_table'                         # html_table.rb
   class TableHTML < SiSU_HTML_Table::TableHTML
diff --git a/lib/sisu/html_table.rb b/lib/sisu/html_table.rb
index 2daffc2e..bb156437 100644
--- a/lib/sisu/html_table.rb
+++ b/lib/sisu/html_table.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     html
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    html
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_HTML_Table
   require_relative 'xhtml_table'                         # xhtml_table.rb
   require_relative 'html_parts'                          # html_parts.rb
diff --git a/lib/sisu/html_tune.rb b/lib/sisu/html_tune.rb
index c1c8a531..c2b3be3b 100644
--- a/lib/sisu/html_tune.rb
+++ b/lib/sisu/html_tune.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     html
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    html
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 require_relative 'dp'                                   # dp.rb
 module SiSU_HTML_Tune
   require_relative 'se'                                 # se.rb
diff --git a/lib/sisu/hub.rb b/lib/sisu/hub.rb
index 733d76fc..3f89f769 100644
--- a/lib/sisu/hub.rb
+++ b/lib/sisu/hub.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     hub
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    hub
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU
   require_relative 'constants'                         # constants.rb
   require_relative 'se'                                # se.rb
diff --git a/lib/sisu/hub_actions.rb b/lib/sisu/hub_actions.rb
index ac692bc7..c3d826d9 100644
--- a/lib/sisu/hub_actions.rb
+++ b/lib/sisu/hub_actions.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     hub
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    hub
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Hub_Actions
   class HubActions
     require_relative 'utils_composite'                    # utils_composite.rb
diff --git a/lib/sisu/hub_loop_markup_files.rb b/lib/sisu/hub_loop_markup_files.rb
index ca02c800..15a31b3d 100644
--- a/lib/sisu/hub_loop_markup_files.rb
+++ b/lib/sisu/hub_loop_markup_files.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     hub
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    hub
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Hub_Loops
   require_relative 'constants'                         # constants.rb
   require_relative 'se'                                # se.rb
diff --git a/lib/sisu/hub_options.rb b/lib/sisu/hub_options.rb
index 9f71e74b..a2916a9f 100644
--- a/lib/sisu/hub_options.rb
+++ b/lib/sisu/hub_options.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     hub
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    hub
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Commandline
   begin
     require 'pathname'
diff --git a/lib/sisu/i18n.rb b/lib/sisu/i18n.rb
index e9f11d50..d5822016 100644
--- a/lib/sisu/i18n.rb
+++ b/lib/sisu/i18n.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     i18n
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    i18n
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_i18n
   @@language_table,@@language_list=nil,nil
   class Languages
diff --git a/lib/sisu/json.rb b/lib/sisu/json.rb
index 99fd20e0..798ea075 100644
--- a/lib/sisu/json.rb
+++ b/lib/sisu/json.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     json
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    json
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_JSON
   require_relative 'se_hub_particulars'                 # se_hub_particulars.rb
     include SiSU_Particulars
diff --git a/lib/sisu/json_format.rb b/lib/sisu/json_format.rb
index 6e00172d..b716aff7 100644
--- a/lib/sisu/json_format.rb
+++ b/lib/sisu/json_format.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     json
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    json
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_JSON_Format
   require_relative 'dp'                                 # dp.rb
   require_relative 'json_parts'                         # json_parts.rb
diff --git a/lib/sisu/json_parts.rb b/lib/sisu/json_parts.rb
index 2dce3049..40a22377 100644
--- a/lib/sisu/json_parts.rb
+++ b/lib/sisu/json_parts.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     json
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    json
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Parts_JSON
   require_relative 'generic_parts'                       # generic_parts.rb
   include SiSU_Parts_Generic
diff --git a/lib/sisu/json_persist.rb b/lib/sisu/json_persist.rb
index fdd15071..f68ca513 100644
--- a/lib/sisu/json_persist.rb
+++ b/lib/sisu/json_persist.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     json
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    json
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_JSON_Persist
   class Persist
     @@persist=nil
diff --git a/lib/sisu/json_shared.rb b/lib/sisu/json_shared.rb
index 0125c444..750877b7 100644
--- a/lib/sisu/json_shared.rb
+++ b/lib/sisu/json_shared.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     json
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    json
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_JSONutils
   require_relative 'generic_parts'                      # generic_parts.rb
   class Clean
diff --git a/lib/sisu/manpage.rb b/lib/sisu/manpage.rb
index 0961d457..ca969f36 100644
--- a/lib/sisu/manpage.rb
+++ b/lib/sisu/manpage.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     manpage
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    manpage
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Manpage
   require_relative 'ao'                                 # ao.rb
   require_relative 'se'                                 # se.rb
diff --git a/lib/sisu/manpage_format.rb b/lib/sisu/manpage_format.rb
index 45694bc1..b72277dc 100644
--- a/lib/sisu/manpage_format.rb
+++ b/lib/sisu/manpage_format.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     manpage
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    manpage
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_ManpageFormat
   require_relative 'dp'                                 # dp.rb
     include SiSU_Param
diff --git a/lib/sisu/object_munge.rb b/lib/sisu/object_munge.rb
index 2d1fdf60..706e3e5e 100644
--- a/lib/sisu/object_munge.rb
+++ b/lib/sisu/object_munge.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     object_munge
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    object_munge
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Object_Munge
   def i_src_o_strip_markup(txtobj)
     txtobj=txtobj.
diff --git a/lib/sisu/prog_text_translation.rb b/lib/sisu/prog_text_translation.rb
index 5ac594d4..cbc6f1bc 100644
--- a/lib/sisu/prog_text_translation.rb
+++ b/lib/sisu/prog_text_translation.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     i18n
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    i18n
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Translate
   require_relative 'se'                                 # se.rb
     include SiSU_Env; include SiSU_Param
diff --git a/lib/sisu/qrcode.rb b/lib/sisu/qrcode.rb
index 9e93f558..55be89f4 100644
--- a/lib/sisu/qrcode.rb
+++ b/lib/sisu/qrcode.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     misc
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    misc
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_QRcode
   require_relative 'se'                                 # se.rb
     include SiSU_Env
diff --git a/lib/sisu/relaxng.rb b/lib/sisu/relaxng.rb
index 8f1d0ba7..e2edcc74 100644
--- a/lib/sisu/relaxng.rb
+++ b/lib/sisu/relaxng.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     misc
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    misc
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Relaxng
   require_relative 'se'                                 # se.rb
   class RelaxNG
diff --git a/lib/sisu/remote.rb b/lib/sisu/remote.rb
index c7dd1b01..425dc2ab 100644
--- a/lib/sisu/remote.rb
+++ b/lib/sisu/remote.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     misc
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    misc
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Remote
   require_relative 'se'                                 # se.rb
     include SiSU_Env
diff --git a/lib/sisu/rexml.rb b/lib/sisu/rexml.rb
index a9a2afc9..6556a975 100644
--- a/lib/sisu/rexml.rb
+++ b/lib/sisu/rexml.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     misc
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    misc
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Rexml
   # load XML file for REXML parsing
   begin
diff --git a/lib/sisu/se.rb b/lib/sisu/se.rb
index 009784f3..8bae44dc 100644
--- a/lib/sisu/se.rb
+++ b/lib/sisu/se.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
+# #encoding: utf-8
+# =begin
 # - Name: SiSU
-#
+# 
 #   - Description: documents, structuring, processing, publishing, search
 #     se
-#
+# 
 #   - Author: Ralph Amissah
 #     <ralph.amissah@gmail.com>
-#
+# 
 #   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
 #     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
 #     2020, 2021, Ralph Amissah,
 #     All Rights Reserved.
-#
+# 
 #   - License: GPL 3 or later:
-#
+# 
 #     SiSU, a framework for document structuring, publishing and search
-#
+# 
 #     Copyright (C) Ralph Amissah
-#
+# 
 #     This program is free software: you can redistribute it and/or modify it
 #     under the terms of the GNU General Public License as published by the Free
 #     Software Foundation, either version 3 of the License, or (at your option)
 #     any later version.
-#
+# 
 #     This program is distributed in the hope that it will be useful, but WITHOUT
 #     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 #     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 #     more details.
-#
+# 
 #     You should have received a copy of the GNU General Public License along with
 #     this program. If not, see <http://www.gnu.org/licenses/>.
-#
+# 
 #     If you have Internet connection, the latest version of the GPL should be
 #     available at these locations:
 #     <http://www.fsf.org/licensing/licenses/gpl.html>
 #     <http://www.gnu.org/licenses/gpl.html>
-#
+# 
 #     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
+# 
 #   - SiSU uses:
 #     - Standard SiSU markup syntax,
 #     - Standard SiSU meta-markup syntax, and the
 #     - Standard SiSU object citation numbering and system
-#
+# 
 #   - Homepages:
 #     <http://www.sisudoc.org>
-#
+# 
 #   - Git
 #     <https://git.sisudoc.org/projects/>
 #     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
 #     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+# =end
 module SiSU_Env
   #@@cX=nil
   require_relative 'constants'                         # constants.rb
diff --git a/lib/sisu/se_cleanoutput.rb b/lib/sisu/se_cleanoutput.rb
index 6d66f1b9..0269e8e3 100644
--- a/lib/sisu/se_cleanoutput.rb
+++ b/lib/sisu/se_cleanoutput.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
+# #encoding: utf-8
+# =begin
 # - Name: SiSU
-#
+# 
 #   - Description: documents, structuring, processing, publishing, search
 #     se
-#
+# 
 #   - Author: Ralph Amissah
 #     <ralph.amissah@gmail.com>
-#
+# 
 #   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
 #     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
 #     2020, 2021, Ralph Amissah,
 #     All Rights Reserved.
-#
+# 
 #   - License: GPL 3 or later:
-#
+# 
 #     SiSU, a framework for document structuring, publishing and search
-#
+# 
 #     Copyright (C) Ralph Amissah
-#
+# 
 #     This program is free software: you can redistribute it and/or modify it
 #     under the terms of the GNU General Public License as published by the Free
 #     Software Foundation, either version 3 of the License, or (at your option)
 #     any later version.
-#
+# 
 #     This program is distributed in the hope that it will be useful, but WITHOUT
 #     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 #     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 #     more details.
-#
+# 
 #     You should have received a copy of the GNU General Public License along with
 #     this program. If not, see <http://www.gnu.org/licenses/>.
-#
+# 
 #     If you have Internet connection, the latest version of the GPL should be
 #     available at these locations:
 #     <http://www.fsf.org/licensing/licenses/gpl.html>
 #     <http://www.gnu.org/licenses/gpl.html>
-#
+# 
 #     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
+# 
 #   - SiSU uses:
 #     - Standard SiSU markup syntax,
 #     - Standard SiSU meta-markup syntax, and the
 #     - Standard SiSU object citation numbering and system
-#
+# 
 #   - Homepages:
 #     <http://www.sisudoc.org>
-#
+# 
 #   - Git
 #     <https://git.sisudoc.org/projects/>
 #     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
 #     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+# =end
 module SiSU_Clean_Output
   require_relative 'constants'                             # constants.rb
   require_relative 'utils'                                 # utils.rb
diff --git a/lib/sisu/se_clear.rb b/lib/sisu/se_clear.rb
index 52374439..e512192c 100644
--- a/lib/sisu/se_clear.rb
+++ b/lib/sisu/se_clear.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
+# #encoding: utf-8
+# =begin
 # - Name: SiSU
-#
+# 
 #   - Description: documents, structuring, processing, publishing, search
 #     se
-#
+# 
 #   - Author: Ralph Amissah
 #     <ralph.amissah@gmail.com>
-#
+# 
 #   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
 #     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
 #     2020, 2021, Ralph Amissah,
 #     All Rights Reserved.
-#
+# 
 #   - License: GPL 3 or later:
-#
+# 
 #     SiSU, a framework for document structuring, publishing and search
-#
+# 
 #     Copyright (C) Ralph Amissah
-#
+# 
 #     This program is free software: you can redistribute it and/or modify it
 #     under the terms of the GNU General Public License as published by the Free
 #     Software Foundation, either version 3 of the License, or (at your option)
 #     any later version.
-#
+# 
 #     This program is distributed in the hope that it will be useful, but WITHOUT
 #     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 #     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 #     more details.
-#
+# 
 #     You should have received a copy of the GNU General Public License along with
 #     this program. If not, see <http://www.gnu.org/licenses/>.
-#
+# 
 #     If you have Internet connection, the latest version of the GPL should be
 #     available at these locations:
 #     <http://www.fsf.org/licensing/licenses/gpl.html>
 #     <http://www.gnu.org/licenses/gpl.html>
-#
+# 
 #     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
+# 
 #   - SiSU uses:
 #     - Standard SiSU markup syntax,
 #     - Standard SiSU meta-markup syntax, and the
 #     - Standard SiSU object citation numbering and system
-#
+# 
 #   - Homepages:
 #     <http://www.sisudoc.org>
-#
+# 
 #   - Git
 #     <https://git.sisudoc.org/projects/>
 #     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
 #     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+# =end
 module SiSU_Clear
   require_relative 'constants'                             # constants.rb
   require_relative 'utils'                                 # utils.rb
diff --git a/lib/sisu/se_createsite.rb b/lib/sisu/se_createsite.rb
index a680d022..1abb5915 100644
--- a/lib/sisu/se_createsite.rb
+++ b/lib/sisu/se_createsite.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
+# #encoding: utf-8
+# =begin
 # - Name: SiSU
-#
+# 
 #   - Description: documents, structuring, processing, publishing, search
 #     se
-#
+# 
 #   - Author: Ralph Amissah
 #     <ralph.amissah@gmail.com>
-#
+# 
 #   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
 #     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
 #     2020, 2021, Ralph Amissah,
 #     All Rights Reserved.
-#
+# 
 #   - License: GPL 3 or later:
-#
+# 
 #     SiSU, a framework for document structuring, publishing and search
-#
+# 
 #     Copyright (C) Ralph Amissah
-#
+# 
 #     This program is free software: you can redistribute it and/or modify it
 #     under the terms of the GNU General Public License as published by the Free
 #     Software Foundation, either version 3 of the License, or (at your option)
 #     any later version.
-#
+# 
 #     This program is distributed in the hope that it will be useful, but WITHOUT
 #     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 #     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 #     more details.
-#
+# 
 #     You should have received a copy of the GNU General Public License along with
 #     this program. If not, see <http://www.gnu.org/licenses/>.
-#
+# 
 #     If you have Internet connection, the latest version of the GPL should be
 #     available at these locations:
 #     <http://www.fsf.org/licensing/licenses/gpl.html>
 #     <http://www.gnu.org/licenses/gpl.html>
-#
+# 
 #     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
+# 
 #   - SiSU uses:
 #     - Standard SiSU markup syntax,
 #     - Standard SiSU meta-markup syntax, and the
 #     - Standard SiSU object citation numbering and system
-#
+# 
 #   - Homepages:
 #     <http://www.sisudoc.org>
-#
+# 
 #   - Git
 #     <https://git.sisudoc.org/projects/>
 #     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
 #     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+# =end
 module SiSU_Create_Site
   require_relative 'constants'                             # constants.rb
   require_relative 'html_parts'                            # html_parts.rb
diff --git a/lib/sisu/se_css.rb b/lib/sisu/se_css.rb
index 3d91636d..eef0406d 100644
--- a/lib/sisu/se_css.rb
+++ b/lib/sisu/se_css.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
+# #encoding: utf-8
+# =begin
 # - Name: SiSU
-#
+# 
 #   - Description: documents, structuring, processing, publishing, search
 #     se
-#
+# 
 #   - Author: Ralph Amissah
 #     <ralph.amissah@gmail.com>
-#
+# 
 #   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
 #     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
 #     2020, 2021, Ralph Amissah,
 #     All Rights Reserved.
-#
+# 
 #   - License: GPL 3 or later:
-#
+# 
 #     SiSU, a framework for document structuring, publishing and search
-#
+# 
 #     Copyright (C) Ralph Amissah
-#
+# 
 #     This program is free software: you can redistribute it and/or modify it
 #     under the terms of the GNU General Public License as published by the Free
 #     Software Foundation, either version 3 of the License, or (at your option)
 #     any later version.
-#
+# 
 #     This program is distributed in the hope that it will be useful, but WITHOUT
 #     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 #     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 #     more details.
-#
+# 
 #     You should have received a copy of the GNU General Public License along with
 #     this program. If not, see <http://www.gnu.org/licenses/>.
-#
+# 
 #     If you have Internet connection, the latest version of the GPL should be
 #     available at these locations:
 #     <http://www.fsf.org/licensing/licenses/gpl.html>
 #     <http://www.gnu.org/licenses/gpl.html>
-#
+# 
 #     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
+# 
 #   - SiSU uses:
 #     - Standard SiSU markup syntax,
 #     - Standard SiSU meta-markup syntax, and the
 #     - Standard SiSU object citation numbering and system
-#
+# 
 #   - Homepages:
 #     <http://www.sisudoc.org>
-#
+# 
 #   - Git
 #     <https://git.sisudoc.org/projects/>
 #     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
 #     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+# =end
 module SiSU_CSS
   require_relative 'constants'                             # constants.rb
   require_relative 'utils'                                 # utils.rb
diff --git a/lib/sisu/se_date.rb b/lib/sisu/se_date.rb
index 11e8c3db..76112b32 100644
--- a/lib/sisu/se_date.rb
+++ b/lib/sisu/se_date.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
+# #encoding: utf-8
+# =begin
 # - Name: SiSU
-#
+# 
 #   - Description: documents, structuring, processing, publishing, search
 #     se
-#
+# 
 #   - Author: Ralph Amissah
 #     <ralph.amissah@gmail.com>
-#
+# 
 #   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
 #     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
 #     2020, 2021, Ralph Amissah,
 #     All Rights Reserved.
-#
+# 
 #   - License: GPL 3 or later:
-#
+# 
 #     SiSU, a framework for document structuring, publishing and search
-#
+# 
 #     Copyright (C) Ralph Amissah
-#
+# 
 #     This program is free software: you can redistribute it and/or modify it
 #     under the terms of the GNU General Public License as published by the Free
 #     Software Foundation, either version 3 of the License, or (at your option)
 #     any later version.
-#
+# 
 #     This program is distributed in the hope that it will be useful, but WITHOUT
 #     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 #     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 #     more details.
-#
+# 
 #     You should have received a copy of the GNU General Public License along with
 #     this program. If not, see <http://www.gnu.org/licenses/>.
-#
+# 
 #     If you have Internet connection, the latest version of the GPL should be
 #     available at these locations:
 #     <http://www.fsf.org/licensing/licenses/gpl.html>
 #     <http://www.gnu.org/licenses/gpl.html>
-#
+# 
 #     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
+# 
 #   - SiSU uses:
 #     - Standard SiSU markup syntax,
 #     - Standard SiSU meta-markup syntax, and the
 #     - Standard SiSU object citation numbering and system
-#
+# 
 #   - Homepages:
 #     <http://www.sisudoc.org>
-#
+# 
 #   - Git
 #     <https://git.sisudoc.org/projects/>
 #     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
 #     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+# =end
 module SiSU_Info_Date
   require_relative 'constants'                             # constants.rb
   require_relative 'utils'                                 # utils.rb
diff --git a/lib/sisu/se_db.rb b/lib/sisu/se_db.rb
index 09fb81fc..d03cd0b8 100644
--- a/lib/sisu/se_db.rb
+++ b/lib/sisu/se_db.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
+# #encoding: utf-8
+# =begin
 # - Name: SiSU
-#
+# 
 #   - Description: documents, structuring, processing, publishing, search
 #     se
-#
+# 
 #   - Author: Ralph Amissah
 #     <ralph.amissah@gmail.com>
-#
+# 
 #   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
 #     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
 #     2020, 2021, Ralph Amissah,
 #     All Rights Reserved.
-#
+# 
 #   - License: GPL 3 or later:
-#
+# 
 #     SiSU, a framework for document structuring, publishing and search
-#
+# 
 #     Copyright (C) Ralph Amissah
-#
+# 
 #     This program is free software: you can redistribute it and/or modify it
 #     under the terms of the GNU General Public License as published by the Free
 #     Software Foundation, either version 3 of the License, or (at your option)
 #     any later version.
-#
+# 
 #     This program is distributed in the hope that it will be useful, but WITHOUT
 #     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 #     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 #     more details.
-#
+# 
 #     You should have received a copy of the GNU General Public License along with
 #     this program. If not, see <http://www.gnu.org/licenses/>.
-#
+# 
 #     If you have Internet connection, the latest version of the GPL should be
 #     available at these locations:
 #     <http://www.fsf.org/licensing/licenses/gpl.html>
 #     <http://www.gnu.org/licenses/gpl.html>
-#
+# 
 #     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
+# 
 #   - SiSU uses:
 #     - Standard SiSU markup syntax,
 #     - Standard SiSU meta-markup syntax, and the
 #     - Standard SiSU object citation numbering and system
-#
+# 
 #   - Homepages:
 #     <http://www.sisudoc.org>
-#
+# 
 #   - Git
 #     <https://git.sisudoc.org/projects/>
 #     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
 #     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+# =end
 module SiSU_Info_Db
   require_relative 'constants'                             # constants.rb
   require_relative 'utils'                                 # utils.rb
diff --git a/lib/sisu/se_envcall.rb b/lib/sisu/se_envcall.rb
index 1913dcb4..7e9f6d2f 100644
--- a/lib/sisu/se_envcall.rb
+++ b/lib/sisu/se_envcall.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     se
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    se
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Env_Call
   begin
     require 'singleton'
diff --git a/lib/sisu/se_file_op.rb b/lib/sisu/se_file_op.rb
index 3beea62c..2b151254 100644
--- a/lib/sisu/se_file_op.rb
+++ b/lib/sisu/se_file_op.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     se
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    se
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Info_File
   require_relative 'utils'                                 # utils.rb
   require_relative 'se_info_env'                           # se_info_env.rb
diff --git a/lib/sisu/se_filemap.rb b/lib/sisu/se_filemap.rb
index 2364d116..d55fd3d5 100644
--- a/lib/sisu/se_filemap.rb
+++ b/lib/sisu/se_filemap.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     se
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    se
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_File_Map
   require_relative 'constants'                             # constants.rb
   require_relative 'utils'                                 # utils.rb
diff --git a/lib/sisu/se_get_init.rb b/lib/sisu/se_get_init.rb
index 4fe593be..e9e34321 100644
--- a/lib/sisu/se_get_init.rb
+++ b/lib/sisu/se_get_init.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     se
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    se
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Get_Init
   require_relative 'constants'                             # constants.rb
   require_relative 'utils'                                 # utils.rb
diff --git a/lib/sisu/se_hub_particulars.rb b/lib/sisu/se_hub_particulars.rb
index da8844f3..93eafc39 100644
--- a/lib/sisu/se_hub_particulars.rb
+++ b/lib/sisu/se_hub_particulars.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     se
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    se
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Particulars
   begin
     require 'singleton'
diff --git a/lib/sisu/se_info_env.rb b/lib/sisu/se_info_env.rb
index 382facf1..725eae33 100644
--- a/lib/sisu/se_info_env.rb
+++ b/lib/sisu/se_info_env.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     se
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    se
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Info_Env
   @@current_document=Dir.pwd #nil #''
   require_relative 'se_envcall'                            # se_envcall.rb
diff --git a/lib/sisu/se_info_port.rb b/lib/sisu/se_info_port.rb
index fc40de2f..16b6f1bc 100644
--- a/lib/sisu/se_info_port.rb
+++ b/lib/sisu/se_info_port.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     se
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    se
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Info_Port
   require_relative 'constants'                             # constants.rb
   require_relative 'utils'                                 # utils.rb
diff --git a/lib/sisu/se_info_system.rb b/lib/sisu/se_info_system.rb
index 400696d3..f3f00b99 100644
--- a/lib/sisu/se_info_system.rb
+++ b/lib/sisu/se_info_system.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     se
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    se
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Info_Sys_Gen
   require_relative 'constants'                             # constants.rb
   require_relative 'utils'                                 # utils.rb
diff --git a/lib/sisu/se_load.rb b/lib/sisu/se_load.rb
index bd3991da..91959886 100644
--- a/lib/sisu/se_load.rb
+++ b/lib/sisu/se_load.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     se
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    se
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Load
   require_relative 'constants'                             # constants.rb
   require_relative 'utils'                                 # utils.rb
diff --git a/lib/sisu/se_processing.rb b/lib/sisu/se_processing.rb
index 904812c6..c048e3c1 100644
--- a/lib/sisu/se_processing.rb
+++ b/lib/sisu/se_processing.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     se
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    se
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Processing_Settings
   require_relative 'constants'                             # constants.rb
   require_relative 'utils'                                 # utils.rb
diff --git a/lib/sisu/se_programs.rb b/lib/sisu/se_programs.rb
index 970bb24a..62f2b4bc 100644
--- a/lib/sisu/se_programs.rb
+++ b/lib/sisu/se_programs.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     se
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    se
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Sys_Call
   begin
     require 'singleton'
diff --git a/lib/sisu/se_remotes.rb b/lib/sisu/se_remotes.rb
index f112589f..ee02fd45 100644
--- a/lib/sisu/se_remotes.rb
+++ b/lib/sisu/se_remotes.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     se
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    se
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Info_Remote_Host
   require_relative 'constants'                             # constants.rb
   require_relative 'utils'                                 # utils.rb
diff --git a/lib/sisu/se_standardise_lang.rb b/lib/sisu/se_standardise_lang.rb
index 688ececa..3b87cd45 100644
--- a/lib/sisu/se_standardise_lang.rb
+++ b/lib/sisu/se_standardise_lang.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     se
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    se
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Standardise_Lang
   @@lang_info=nil
   class StandardiseLanguage
diff --git a/lib/sisu/se_version.rb b/lib/sisu/se_version.rb
index adf3b9be..6e7c8c9a 100644
--- a/lib/sisu/se_version.rb
+++ b/lib/sisu/se_version.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     se
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    se
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Info_Version
   require_relative 'constants'                             # constants.rb
   require_relative 'utils'                                 # utils.rb
diff --git a/lib/sisu/shared_images.rb b/lib/sisu/shared_images.rb
index 4badb84c..af2e3254 100644
--- a/lib/sisu/shared_images.rb
+++ b/lib/sisu/shared_images.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     shared
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    shared
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Images
   require_relative 'se_hub_particulars'                 # se_hub_particulars.rb
   class Source
diff --git a/lib/sisu/shared_markup_alt.rb b/lib/sisu/shared_markup_alt.rb
index db3dbbfe..785544ed 100644
--- a/lib/sisu/shared_markup_alt.rb
+++ b/lib/sisu/shared_markup_alt.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     shared
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    shared
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_TextRepresentation
   class Alter
     def initialize(x)
diff --git a/lib/sisu/shared_metadata.rb b/lib/sisu/shared_metadata.rb
index 3214107a..bf5833cc 100644
--- a/lib/sisu/shared_metadata.rb
+++ b/lib/sisu/shared_metadata.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     shared
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    shared
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Metadata
   require_relative 'xml_parts'                          # xml_parts.rb
   require_relative 'xml_shared'                         # xml_shared.rb
diff --git a/lib/sisu/shared_sem.rb b/lib/sisu/shared_sem.rb
index 3e30de17..46849615 100644
--- a/lib/sisu/shared_sem.rb
+++ b/lib/sisu/shared_sem.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     shared
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    shared
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Sem
   require_relative 'dp'                                 # dp.rb
   class Tags
diff --git a/lib/sisu/sisu_thor_lib.rb b/lib/sisu/sisu_thor_lib.rb
index 80ad6fe2..5c6cfee7 100644
--- a/lib/sisu/sisu_thor_lib.rb
+++ b/lib/sisu/sisu_thor_lib.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     sisu build
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    sisu build
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Po4a_Actions
   require_relative 'utils_response'                   # utils_response.rb
   include SiSU_Response
diff --git a/lib/sisu/sitemaps.rb b/lib/sisu/sitemaps.rb
index 90c1f2b8..8791a228 100644
--- a/lib/sisu/sitemaps.rb
+++ b/lib/sisu/sitemaps.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     misc
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    misc
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Sitemaps
   require_relative 'dp'                                 # dp.rb
     include SiSU_Param
diff --git a/lib/sisu/src_kdissert_share.rb b/lib/sisu/src_kdissert_share.rb
index c9241b25..93678254 100644
--- a/lib/sisu/src_kdissert_share.rb
+++ b/lib/sisu/src_kdissert_share.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     src
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    src
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_KdiSource
   require_relative 'se'                                 # se.rb
     include SiSU_Env
diff --git a/lib/sisu/src_po4a_share.rb b/lib/sisu/src_po4a_share.rb
index a4f1a01b..4b4b6bde 100644
--- a/lib/sisu/src_po4a_share.rb
+++ b/lib/sisu/src_po4a_share.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     src
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    src
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Languages_Selected
   require_relative 'utils_response'                   # utils_response.rb
   def language
diff --git a/lib/sisu/src_po4a_shelf.rb b/lib/sisu/src_po4a_shelf.rb
index f8b749fc..9c8eb2a5 100644
--- a/lib/sisu/src_po4a_shelf.rb
+++ b/lib/sisu/src_po4a_shelf.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     src
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    src
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Po4a
   require_relative 'ao'                                 # ao.rb
   require_relative 'se'                                 # se.rb
diff --git a/lib/sisu/src_po4a_shelf_set.rb b/lib/sisu/src_po4a_shelf_set.rb
index e3fc1c41..166848c6 100644
--- a/lib/sisu/src_po4a_shelf_set.rb
+++ b/lib/sisu/src_po4a_shelf_set.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     src
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    src
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Po4aUtils
   class Wrap
     def initialize(md,orig='',trans='',is_desc='',n_char_max=76,n_indent=0,n_hang=nil)
diff --git a/lib/sisu/src_po4a_sst_ao_sst.rb b/lib/sisu/src_po4a_sst_ao_sst.rb
index 1aef9e0d..168a5fb1 100644
--- a/lib/sisu/src_po4a_sst_ao_sst.rb
+++ b/lib/sisu/src_po4a_sst_ao_sst.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     src
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    src
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_SStm_AO_SStm
   require_relative 'ao'                                 # ao.rb
   require_relative 'se'                                 # se.rb
diff --git a/lib/sisu/src_po4a_sst_ao_sst_set.rb b/lib/sisu/src_po4a_sst_ao_sst_set.rb
index 278f6ae8..2852cb2e 100644
--- a/lib/sisu/src_po4a_sst_ao_sst_set.rb
+++ b/lib/sisu/src_po4a_sst_ao_sst_set.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     src
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    src
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Po4aUtils
   class Wrap
     def initialize(md,orig='',trans='',n_char_max=76,n_indent=0,n_hang=nil)
diff --git a/lib/sisu/src_po4a_sstm.rb b/lib/sisu/src_po4a_sstm.rb
index 637fdfeb..7530b88c 100644
--- a/lib/sisu/src_po4a_sstm.rb
+++ b/lib/sisu/src_po4a_sstm.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     src
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    src
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Markup
   require_relative 'src_shared'                         # src_shared.rb
     include SiSU_Source
diff --git a/lib/sisu/src_shared.rb b/lib/sisu/src_shared.rb
index 85a6ca69..91067c7d 100644
--- a/lib/sisu/src_shared.rb
+++ b/lib/sisu/src_shared.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     src
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    src
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Source
   include SiSU_Env
   class SiSUpodSource
diff --git a/lib/sisu/src_sisupod_make.rb b/lib/sisu/src_sisupod_make.rb
index def08830..b31318ef 100644
--- a/lib/sisu/src_sisupod_make.rb
+++ b/lib/sisu/src_sisupod_make.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     src
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    src
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Doc
   require_relative 'src_shared'                         # scr_shared.rb
     include SiSU_Source
diff --git a/lib/sisu/src_sisupod_sstm.rb b/lib/sisu/src_sisupod_sstm.rb
index 71f71552..a20614c0 100644
--- a/lib/sisu/src_sisupod_sstm.rb
+++ b/lib/sisu/src_sisupod_sstm.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     src
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    src
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Markup
   require_relative 'src_shared'                         # src_shared.rb
     include SiSU_Source
diff --git a/lib/sisu/sst_convert_markup.rb b/lib/sisu/sst_convert_markup.rb
index ed646cbf..b1d9ac6e 100644
--- a/lib/sisu/sst_convert_markup.rb
+++ b/lib/sisu/sst_convert_markup.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     sst
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    sst
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Modify
   require_relative 'sst_identify_markup'                # sst_identify_markup.rb
   require_relative 'sst_from_xml'                       # sst_from_xml.rb
diff --git a/lib/sisu/sst_do_inline_footnotes.rb b/lib/sisu/sst_do_inline_footnotes.rb
index 16e420e8..4dbc1d24 100644
--- a/lib/sisu/sst_do_inline_footnotes.rb
+++ b/lib/sisu/sst_do_inline_footnotes.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     sst
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    sst
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_ConvertFootnotes
   require_relative 'se'                                 # se.rb
     include SiSU_Env
diff --git a/lib/sisu/sst_from_xml.rb b/lib/sisu/sst_from_xml.rb
index dc822cb4..fe74c523 100644
--- a/lib/sisu/sst_from_xml.rb
+++ b/lib/sisu/sst_from_xml.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     sst
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    sst
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_sstFromXML
   require_relative 'se'                                 # se.rb
   class Convert
diff --git a/lib/sisu/sst_identify_markup.rb b/lib/sisu/sst_identify_markup.rb
index f1ee73e3..1c2e592c 100644
--- a/lib/sisu/sst_identify_markup.rb
+++ b/lib/sisu/sst_identify_markup.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     sst
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    sst
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Markup
   class MarkupInform
     attr_accessor :version
diff --git a/lib/sisu/sst_to_s_xml_sax.rb b/lib/sisu/sst_to_s_xml_sax.rb
index 1480475b..7a1167c6 100644
--- a/lib/sisu/sst_to_s_xml_sax.rb
+++ b/lib/sisu/sst_to_s_xml_sax.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     sst
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    sst
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_SimpleXML_ModelSax
   require_relative 'se_hub_particulars'                 # se_hub_particulars.rb
     include SiSU_Particulars
diff --git a/lib/sisu/termsheet.rb b/lib/sisu/termsheet.rb
index ea5905bb..eb48d09d 100644
--- a/lib/sisu/termsheet.rb
+++ b/lib/sisu/termsheet.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     misc
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    misc
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 require_relative 'se'                                   # se.rb
 require_relative 'dp'                                   # dp.rb
   include SiSU_Param
diff --git a/lib/sisu/texinfo.rb b/lib/sisu/texinfo.rb
index ba8e1619..6bbe7466 100644
--- a/lib/sisu/texinfo.rb
+++ b/lib/sisu/texinfo.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     texinfo
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    texinfo
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_TexInfo
   require_relative 'html'                               # html.rb
   require_relative 'dp'                                 # dp.rb
diff --git a/lib/sisu/texinfo_format.rb b/lib/sisu/texinfo_format.rb
index 7029a5c8..263a2b0f 100644
--- a/lib/sisu/texinfo_format.rb
+++ b/lib/sisu/texinfo_format.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     texinfo
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    texinfo
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_TexInfoFormat
   @@table_pg_break_counter=1
   require_relative 'dp'                                 # dp.rb
diff --git a/lib/sisu/texpdf.rb b/lib/sisu/texpdf.rb
index 19155eef..9b938a1a 100644
--- a/lib/sisu/texpdf.rb
+++ b/lib/sisu/texpdf.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     texpdf
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    texpdf
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_TeX
   begin
     require 'pstore'
diff --git a/lib/sisu/texpdf_format.rb b/lib/sisu/texpdf_format.rb
index 11b0091c..f8b6e525 100644
--- a/lib/sisu/texpdf_format.rb
+++ b/lib/sisu/texpdf_format.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     texpdf
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    texpdf
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_TeX_Pdf
   require_relative 'texpdf_parts'                        # texpdf_parts.rb
   @@table_pg_break_counter=1
diff --git a/lib/sisu/texpdf_parts.rb b/lib/sisu/texpdf_parts.rb
index 0f3af456..5a5b6ffd 100644
--- a/lib/sisu/texpdf_parts.rb
+++ b/lib/sisu/texpdf_parts.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     texpdf
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    texpdf
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Parts_TeXpdf
   require_relative 'generic_parts'                       # generic_parts.rb
   include SiSU_Parts_Generic
diff --git a/lib/sisu/txt_asciidoc.rb b/lib/sisu/txt_asciidoc.rb
index e62b769c..fc69b8ba 100644
--- a/lib/sisu/txt_asciidoc.rb
+++ b/lib/sisu/txt_asciidoc.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     txt
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    txt
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Txt_AsciiDoc
   require_relative 'ao'                                 # ao.rb
   require_relative 'se'                                 # se.rb
diff --git a/lib/sisu/txt_asciidoc_decorate.rb b/lib/sisu/txt_asciidoc_decorate.rb
index d9ff5bc6..ccd24ebc 100644
--- a/lib/sisu/txt_asciidoc_decorate.rb
+++ b/lib/sisu/txt_asciidoc_decorate.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     txt
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    txt
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Decorate_Txt_AsciiDoc
   def decorate
     def heading
diff --git a/lib/sisu/txt_markdown.rb b/lib/sisu/txt_markdown.rb
index 2b157edb..426aa9d1 100644
--- a/lib/sisu/txt_markdown.rb
+++ b/lib/sisu/txt_markdown.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     txt
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    txt
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Txt_Markdown
   require_relative 'ao'                                 # ao.rb
   require_relative 'se'                                 # se.rb
diff --git a/lib/sisu/txt_markdown_decorate.rb b/lib/sisu/txt_markdown_decorate.rb
index b2888f92..c0fc0af0 100644
--- a/lib/sisu/txt_markdown_decorate.rb
+++ b/lib/sisu/txt_markdown_decorate.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     txt
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    txt
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Decorate_Txt_Markdown
   def decorate
     def heading
diff --git a/lib/sisu/txt_orgmode.rb b/lib/sisu/txt_orgmode.rb
index 10c61b6e..7be4f3d7 100644
--- a/lib/sisu/txt_orgmode.rb
+++ b/lib/sisu/txt_orgmode.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     txt
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    txt
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Txt_OrgMode
   require_relative 'ao'                                 # ao.rb
   require_relative 'se'                                 # se.rb
diff --git a/lib/sisu/txt_orgmode_decorate.rb b/lib/sisu/txt_orgmode_decorate.rb
index d49c733a..8185e1d3 100644
--- a/lib/sisu/txt_orgmode_decorate.rb
+++ b/lib/sisu/txt_orgmode_decorate.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     txt
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    txt
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Decorate_Txt_OrgMode
   def decorate
     def heading
diff --git a/lib/sisu/txt_output.rb b/lib/sisu/txt_output.rb
index 009aed14..8c053200 100644
--- a/lib/sisu/txt_output.rb
+++ b/lib/sisu/txt_output.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     txt
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    txt
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module Txt_Output
   class Output
     include SiSU_Param
diff --git a/lib/sisu/txt_plain.rb b/lib/sisu/txt_plain.rb
index 0f9a721a..1823b67b 100644
--- a/lib/sisu/txt_plain.rb
+++ b/lib/sisu/txt_plain.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     txt
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    txt
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Txt_Plain
   require_relative 'ao'                                 # ao.rb
   require_relative 'se'                                 # se.rb
diff --git a/lib/sisu/txt_plain_decorate.rb b/lib/sisu/txt_plain_decorate.rb
index 69b5344f..f9943278 100644
--- a/lib/sisu/txt_plain_decorate.rb
+++ b/lib/sisu/txt_plain_decorate.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     txt
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    txt
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Decorate_Txt_Plain
   def decorate
     def heading_underscore
diff --git a/lib/sisu/txt_read.rb b/lib/sisu/txt_read.rb
index 06606222..f6d14738 100644
--- a/lib/sisu/txt_read.rb
+++ b/lib/sisu/txt_read.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     txt
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    txt
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Txt_Read
   require_relative 'se'                                 # se.rb
     include SiSU_Env
diff --git a/lib/sisu/txt_rst.rb b/lib/sisu/txt_rst.rb
index 5762a2fa..b899e830 100644
--- a/lib/sisu/txt_rst.rb
+++ b/lib/sisu/txt_rst.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     txt
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    txt
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Txt_rST
   require_relative 'ao'                                 # ao.rb
   require_relative 'se'                                 # se.rb
diff --git a/lib/sisu/txt_rst_decorate.rb b/lib/sisu/txt_rst_decorate.rb
index bee406ea..6f2650ea 100644
--- a/lib/sisu/txt_rst_decorate.rb
+++ b/lib/sisu/txt_rst_decorate.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     txt
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    txt
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Decorate_Txt_rST
   def decorate
     def heading
diff --git a/lib/sisu/txt_shared.rb b/lib/sisu/txt_shared.rb
index 3c605a8f..2ee1d33c 100644
--- a/lib/sisu/txt_shared.rb
+++ b/lib/sisu/txt_shared.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     txt
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    txt
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_TextUtils
   require_relative 'generic_parts'                      # generic_parts.rb
   class Wrap
diff --git a/lib/sisu/txt_textile.rb b/lib/sisu/txt_textile.rb
index 656afdf3..761a00b2 100644
--- a/lib/sisu/txt_textile.rb
+++ b/lib/sisu/txt_textile.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     txt
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    txt
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Txt_Textile
   require_relative 'ao'                                 # ao.rb
   require_relative 'se'                                 # se.rb
diff --git a/lib/sisu/txt_textile_decorate.rb b/lib/sisu/txt_textile_decorate.rb
index 339a639d..fe62d396 100644
--- a/lib/sisu/txt_textile_decorate.rb
+++ b/lib/sisu/txt_textile_decorate.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     txt
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    txt
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Decorate_Txt_Textile
   def decorate
     def heading
diff --git a/lib/sisu/update.rb b/lib/sisu/update.rb
index 990d08ef..63bd7673 100644
--- a/lib/sisu/update.rb
+++ b/lib/sisu/update.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     misc
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    misc
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_UpdateControlFlag
   require_relative 'se'                                 # se.rb
     include SiSU_Env
diff --git a/lib/sisu/urls.rb b/lib/sisu/urls.rb
index 9a8902b6..305b70e0 100644
--- a/lib/sisu/urls.rb
+++ b/lib/sisu/urls.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     misc
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    misc
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Urls
   require_relative 'se_hub_particulars'                 # se_hub_particulars.rb
     include SiSU_Particulars
diff --git a/lib/sisu/utils.rb b/lib/sisu/utils.rb
index 2426bcf8..0340dcdf 100644
--- a/lib/sisu/utils.rb
+++ b/lib/sisu/utils.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     utils
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    utils
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Utils
   class CodeMarker
     def initialize(line,file,color=:red)
diff --git a/lib/sisu/utils_composite.rb b/lib/sisu/utils_composite.rb
index 97b46534..78cae5a8 100644
--- a/lib/sisu/utils_composite.rb
+++ b/lib/sisu/utils_composite.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     utils
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    utils
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Composite_Doc_Utils
   def inserts_array(loadfilename)
     IO.readlines(loadfilename,'')
diff --git a/lib/sisu/utils_response.rb b/lib/sisu/utils_response.rb
index 0c8c63c6..fc7b9e59 100644
--- a/lib/sisu/utils_response.rb
+++ b/lib/sisu/utils_response.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     utils
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    utils
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Response
   def available_selections_
     %{'yes', 'no', 'quit' or 'exit'; [ynqx]}
diff --git a/lib/sisu/utils_screen_text_color.rb b/lib/sisu/utils_screen_text_color.rb
index da214179..8d3e7874 100644
--- a/lib/sisu/utils_screen_text_color.rb
+++ b/lib/sisu/utils_screen_text_color.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     utils
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    utils
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Screen
   class Color
     attr_accessor :off,:marker,:bold,:underline,:invert,:darkgrey_hi,:grey_hi,:pink_hi,:fuchsia_hi,:red_hi,:orange_hi,:yellow_hi,:brown_hi,:lightgreen_hi,:green_hi,:cyan_hi,:blue_hi,:navy_hi,:white,:white_bold,:grey,:pink,:fuchsia,:ruby,:red,:orange,:yellow,:brown,:green,:darkgreen,:cyan,:blue,:navy,:black
diff --git a/lib/sisu/utils_spell.rb b/lib/sisu/utils_spell.rb
index da4fb7b7..8ea5047b 100644
--- a/lib/sisu/utils_spell.rb
+++ b/lib/sisu/utils_spell.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     utils
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    utils
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_SpellUtility
   class Spell
     def initialize(input,filesrc,flg)
diff --git a/lib/sisu/webrick.rb b/lib/sisu/webrick.rb
index a9856a1f..a9973a05 100644
--- a/lib/sisu/webrick.rb
+++ b/lib/sisu/webrick.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     misc
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    misc
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Webserv
   class WebrickStart
     begin
diff --git a/lib/sisu/wikispeak.rb b/lib/sisu/wikispeak.rb
index e656d8c7..e60c0c78 100644
--- a/lib/sisu/wikispeak.rb
+++ b/lib/sisu/wikispeak.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     misc
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    misc
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Wikispeak
   require_relative 'ao'                                 # ao.rb
   require_relative 'se'                                 # se.rb
diff --git a/lib/sisu/xhtml.rb b/lib/sisu/xhtml.rb
index e7af6851..251995d5 100644
--- a/lib/sisu/xhtml.rb
+++ b/lib/sisu/xhtml.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     xhtml
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    xhtml
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_XHTML
   require_relative 'se_hub_particulars'                 # se_hub_particulars.rb
     include SiSU_Particulars
diff --git a/lib/sisu/xhtml_epub2.rb b/lib/sisu/xhtml_epub2.rb
index e0dc0801..0b629d38 100644
--- a/lib/sisu/xhtml_epub2.rb
+++ b/lib/sisu/xhtml_epub2.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     xhtml
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    xhtml
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_XHTML_EPUB2
   begin
     require 'pstore'
diff --git a/lib/sisu/xhtml_epub2_concordance.rb b/lib/sisu/xhtml_epub2_concordance.rb
index b5f7911d..792b8452 100644
--- a/lib/sisu/xhtml_epub2_concordance.rb
+++ b/lib/sisu/xhtml_epub2_concordance.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     xhtml
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    xhtml
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_XHTML_EPUB2_Concordance
   require_relative 'se_hub_particulars'                 # se_hub_particulars.rb
     include SiSU_Particulars
diff --git a/lib/sisu/xhtml_epub2_format.rb b/lib/sisu/xhtml_epub2_format.rb
index f18d52f9..48108818 100644
--- a/lib/sisu/xhtml_epub2_format.rb
+++ b/lib/sisu/xhtml_epub2_format.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     xhtml
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    xhtml
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_XHTML_EPUB2_Format
   class ParagraphNumber
     def initialize(md,ocn)
diff --git a/lib/sisu/xhtml_epub2_persist.rb b/lib/sisu/xhtml_epub2_persist.rb
index 1ebe8d02..fc043b7b 100644
--- a/lib/sisu/xhtml_epub2_persist.rb
+++ b/lib/sisu/xhtml_epub2_persist.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     xhtml
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    xhtml
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_XHTML_EPUB2_Persist
   class Persist
     @@persist=nil
diff --git a/lib/sisu/xhtml_epub2_segments.rb b/lib/sisu/xhtml_epub2_segments.rb
index 7b4da061..5f14f00a 100644
--- a/lib/sisu/xhtml_epub2_segments.rb
+++ b/lib/sisu/xhtml_epub2_segments.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     xhtml
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    xhtml
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_XHTML_EPUB2_Seg
   require_relative 'xhtml_shared'                       # xhtml_shared.rb
   require_relative 'xhtml_epub2'                        # xhtml_epub2.rb
diff --git a/lib/sisu/xhtml_epub2_tune.rb b/lib/sisu/xhtml_epub2_tune.rb
index b73281c7..d1d9d890 100644
--- a/lib/sisu/xhtml_epub2_tune.rb
+++ b/lib/sisu/xhtml_epub2_tune.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     xhtml
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    xhtml
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 require_relative 'dp'                                   # dp.rb
 module SiSU_XHTML_EPUB2_Tune
   require_relative 'se'                                 # se.rb
diff --git a/lib/sisu/xhtml_parts.rb b/lib/sisu/xhtml_parts.rb
index 05c3810d..6684f575 100644
--- a/lib/sisu/xhtml_parts.rb
+++ b/lib/sisu/xhtml_parts.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     xhtml
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    xhtml
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Parts_XHTML
   require_relative 'generic_parts'                       # generic_parts.rb
   include SiSU_Parts_Generic
diff --git a/lib/sisu/xhtml_shared.rb b/lib/sisu/xhtml_shared.rb
index 7613f376..fabcb038 100644
--- a/lib/sisu/xhtml_shared.rb
+++ b/lib/sisu/xhtml_shared.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     xhtml
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    xhtml
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_XHTML_Shared
   require_relative 'xhtml_table'                        # xhtml_table.rb
   class TableXHTML < SiSU_XHTML_Table::TableXHTML
diff --git a/lib/sisu/xhtml_table.rb b/lib/sisu/xhtml_table.rb
index 7e3d4b52..2784ac3d 100644
--- a/lib/sisu/xhtml_table.rb
+++ b/lib/sisu/xhtml_table.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     xhtml
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    xhtml
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_XHTML_Table
   require_relative 'xhtml_parts'                         # xhtml_parts.rb
   class TableXHTML
diff --git a/lib/sisu/xml_docbook5.rb b/lib/sisu/xml_docbook5.rb
index a3531b6c..55a9584d 100644
--- a/lib/sisu/xml_docbook5.rb
+++ b/lib/sisu/xml_docbook5.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     xml
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    xml
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_XML_Docbook_Book
   require_relative 'se_hub_particulars'                 # se_hub_particulars.rb
     include SiSU_Particulars
diff --git a/lib/sisu/xml_dom.rb b/lib/sisu/xml_dom.rb
index 5f1ff9fe..d3ed3c00 100644
--- a/lib/sisu/xml_dom.rb
+++ b/lib/sisu/xml_dom.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     xml
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    xml
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_XML_DOM
   require_relative 'se_hub_particulars'                 # se_hub_particulars.rb
     include SiSU_Particulars
diff --git a/lib/sisu/xml_fictionbook2.rb b/lib/sisu/xml_fictionbook2.rb
index 6a7e0373..b2553404 100644
--- a/lib/sisu/xml_fictionbook2.rb
+++ b/lib/sisu/xml_fictionbook2.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     xml
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    xml
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_XML_Fictionbook
   require_relative 'se_hub_particulars'                 # se_hub_particulars.rb
     include SiSU_Particulars
diff --git a/lib/sisu/xml_format.rb b/lib/sisu/xml_format.rb
index 21187b54..7259c4c7 100644
--- a/lib/sisu/xml_format.rb
+++ b/lib/sisu/xml_format.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     xml
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    xml
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_XML_Format
   require_relative 'dp'                                 # dp.rb
   require_relative 'xml_parts'                          # xml_parts.rb
diff --git a/lib/sisu/xml_md_oai_pmh_dc.rb b/lib/sisu/xml_md_oai_pmh_dc.rb
index 7452abaa..31d85d5e 100644
--- a/lib/sisu/xml_md_oai_pmh_dc.rb
+++ b/lib/sisu/xml_md_oai_pmh_dc.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     xml
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    xml
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_XML_Metadata
   require_relative 'se'                                 # se.rb
     include SiSU_Env
diff --git a/lib/sisu/xml_odf_odt.rb b/lib/sisu/xml_odf_odt.rb
index 38381543..de8636b9 100644
--- a/lib/sisu/xml_odf_odt.rb
+++ b/lib/sisu/xml_odf_odt.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     xml
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    xml
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_XML_ODF_ODT
   require_relative 'se_hub_particulars'                 # se_hub_particulars.rb
     include SiSU_Particulars
diff --git a/lib/sisu/xml_odf_odt_format.rb b/lib/sisu/xml_odf_odt_format.rb
index cbaf94d7..2621dab8 100644
--- a/lib/sisu/xml_odf_odt_format.rb
+++ b/lib/sisu/xml_odf_odt_format.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     xml
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    xml
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_XML_ODF_ODT_Format
   require_relative 'dp'                                 # dp.rb
     include SiSU_Param
diff --git a/lib/sisu/xml_parts.rb b/lib/sisu/xml_parts.rb
index 5fdc0f68..8e55521d 100644
--- a/lib/sisu/xml_parts.rb
+++ b/lib/sisu/xml_parts.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     xml
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    xml
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Parts_XML
   require_relative 'generic_parts'                       # generic_parts.rb
   include SiSU_Parts_Generic
diff --git a/lib/sisu/xml_persist.rb b/lib/sisu/xml_persist.rb
index 9546d181..224a7f53 100644
--- a/lib/sisu/xml_persist.rb
+++ b/lib/sisu/xml_persist.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     xml
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    xml
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_XML_Persist
   class Persist
     @@persist=nil
diff --git a/lib/sisu/xml_sax.rb b/lib/sisu/xml_sax.rb
index 3b8bf7c4..457984b8 100644
--- a/lib/sisu/xml_sax.rb
+++ b/lib/sisu/xml_sax.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     xml
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    xml
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_XML_SAX
   require_relative 'se_hub_particulars'                 # se_hub_particulars.rb
     include SiSU_Particulars
diff --git a/lib/sisu/xml_scaffold_structure_collapsed.rb b/lib/sisu/xml_scaffold_structure_collapsed.rb
index 12c572b7..bd4d2024 100644
--- a/lib/sisu/xml_scaffold_structure_collapsed.rb
+++ b/lib/sisu/xml_scaffold_structure_collapsed.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     xml
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    xml
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_XML_Scaffold_Structure_Collapse
   require_relative 'se_hub_particulars'                 # se_hub_particulars.rb
     include SiSU_Particulars
diff --git a/lib/sisu/xml_scaffold_structure_sisu.rb b/lib/sisu/xml_scaffold_structure_sisu.rb
index 28ffb0e6..ba0adf84 100644
--- a/lib/sisu/xml_scaffold_structure_sisu.rb
+++ b/lib/sisu/xml_scaffold_structure_sisu.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     xml
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    xml
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_XML_Scaffold_Structure_Sisu
   require_relative 'se_hub_particulars'                 # se_hub_particulars.rb
     include SiSU_Particulars
diff --git a/lib/sisu/xml_shared.rb b/lib/sisu/xml_shared.rb
index 61ba5444..0d05330c 100644
--- a/lib/sisu/xml_shared.rb
+++ b/lib/sisu/xml_shared.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     xml
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    xml
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_XML_Munge
   require_relative 'xml_parts'                          # xml_parts.rb
   class Trans
diff --git a/lib/sisu/xml_tables.rb b/lib/sisu/xml_tables.rb
index 9342a951..37cd31d4 100644
--- a/lib/sisu/xml_tables.rb
+++ b/lib/sisu/xml_tables.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     xml
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    xml
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Tables
   class Table #_xml
     @@tablehead=0
diff --git a/lib/sisu/zap.rb b/lib/sisu/zap.rb
index 042a3ee4..57e75a90 100644
--- a/lib/sisu/zap.rb
+++ b/lib/sisu/zap.rb
@@ -1,55 +1,57 @@
-# encoding: utf-8
-# - Name: SiSU
-#
-#   - Description: documents, structuring, processing, publishing, search
-#     misc
-#
-#   - Author: Ralph Amissah
-#     <ralph.amissah@gmail.com>
-#
-#   - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-#     2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
-#     2020, 2021, Ralph Amissah,
-#     All Rights Reserved.
-#
-#   - License: GPL 3 or later:
-#
-#     SiSU, a framework for document structuring, publishing and search
-#
-#     Copyright (C) Ralph Amissah
-#
-#     This program is free software: you can redistribute it and/or modify it
-#     under the terms of the GNU General Public License as published by the Free
-#     Software Foundation, either version 3 of the License, or (at your option)
-#     any later version.
-#
-#     This program is distributed in the hope that it will be useful, but WITHOUT
-#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-#     FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-#     more details.
-#
-#     You should have received a copy of the GNU General Public License along with
-#     this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#     If you have Internet connection, the latest version of the GPL should be
-#     available at these locations:
-#     <http://www.fsf.org/licensing/licenses/gpl.html>
-#     <http://www.gnu.org/licenses/gpl.html>
-#
-#     <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-#
-#   - SiSU uses:
-#     - Standard SiSU markup syntax,
-#     - Standard SiSU meta-markup syntax, and the
-#     - Standard SiSU object citation numbering and system
-#
-#   - Homepages:
-#     <http://www.sisudoc.org>
-#
-#   - Git
-#     <https://git.sisudoc.org/projects/>
-#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
-#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+#encoding: utf-8
+=begin
+- Name: SiSU
+
+  - Description: documents, structuring, processing, publishing, search
+    misc
+
+  - Author: Ralph Amissah
+    <ralph.amissah@gmail.com>
+
+  - Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+    2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019,
+    2020, 2021, Ralph Amissah,
+    All Rights Reserved.
+
+  - License: GPL 3 or later:
+
+    SiSU, a framework for document structuring, publishing and search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see <http://www.gnu.org/licenses/>.
+
+    If you have Internet connection, the latest version of the GPL should be
+    available at these locations:
+    <http://www.fsf.org/licensing/licenses/gpl.html>
+    <http://www.gnu.org/licenses/gpl.html>
+
+    <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+  - SiSU uses:
+    - Standard SiSU markup syntax,
+    - Standard SiSU meta-markup syntax, and the
+    - Standard SiSU object citation numbering and system
+
+  - Homepages:
+    <http://www.sisudoc.org>
+
+  - Git
+    <https://git.sisudoc.org/projects/>
+    <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
+    <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
+=end
 module SiSU_Zap
   require_relative 'se'                                 # se.rb
     include SiSU_Env