0.13.2 ref scope (return)

13 files changed, 214 insertions, 214 deletions

diff --git a/org/ao_conf_make_meta.org b/org/ao_conf_make_meta.org
index dc45daf..040df50 100644
--- a/org/ao_conf_make_meta.org
+++ b/org/ao_conf_make_meta.org
@@ -635,10 +635,10 @@ body {
 #+name: ao_markup_header_extract_native
 #+BEGIN_SRC d
 private auto native_header_extract(L,Lo,O,T)(
-  L line,
-  ref Lo line_occur,
-  ref O an_object,
-  ref T type
+  L                line,
+  return ref Lo    line_occur,
+  return ref O     an_object,
+  return ref T     type
 ) {
   debug(asserts){
     static assert(is(typeof(line)       == char[]));
@@ -685,9 +685,9 @@ private auto native_header_extract(L,Lo,O,T)(
 #+name: ao_markup_header_extract_native
 #+BEGIN_SRC d
 auto header_reset_states_common(Lo,O,T)(
-  ref Lo line_occur,
-  ref O  an_object,
-  ref T  type
+  return ref Lo    line_occur,
+  return ref O     an_object,
+  return ref T     type
 ) {
   debug(asserts){
     static assert(is(typeof(line_occur) == int[string]));
diff --git a/org/ao_debugs.org b/org/ao_debugs.org
index 7a63a3a..16efa26 100644
--- a/org/ao_debugs.org
+++ b/org/ao_debugs.org
@@ -23,8 +23,8 @@
 template SiSUdebugs() {
   <<debug_imports>>
   auto SiSUdebugs(S,T)(
-    auto ref const S         contents,
-    auto ref T               doc_matters,
+    auto return ref const S  contents,
+    auto return ref T        doc_matters,
   ) {
     mixin SiSUrgxInit;
     mixin InternalMarkup;
@@ -133,8 +133,8 @@ debug(dumpdoc) {
 #+BEGIN_SRC d
 debug(checkdoc) {
   void out_segnames(S,T)(
-    auto ref const S         contents,
-    auto ref T               doc_matters,
+    auto return ref const S  contents,
+    auto return ref T        doc_matters,
   ) {
     foreach (key; doc_matters.keys_seq_seg) {
       if (contents[key].length > 1) {
@@ -156,7 +156,7 @@ debug(checkdoc) {
 #+BEGIN_SRC d
 debug(checkdoc) {
   void out_toc(S)(
-    auto ref const S         contents,
+    auto return ref const S  contents,
     string                   key,
   ) {
     if (contents[key].length > 1) {
@@ -180,7 +180,7 @@ debug(checkdoc) {
 #+BEGIN_SRC d
 debug(checkdoc) {
   void out_endnotes(S)(
-    auto ref const S         contents,
+    auto return ref const S  contents,
     string                   key,
   ) {
     if (contents[key].length > 1) {
@@ -202,7 +202,7 @@ debug(checkdoc) {
 #+BEGIN_SRC d
 debug(checkdoc) {
   void out_bookindex(S)(
-    auto ref const S         contents,
+    auto return ref const S  contents,
     string                   key,
   ) {
     if (contents[key].length > 1) {
diff --git a/org/ao_doc_abstraction.org b/org/ao_doc_abstraction.org
index b3f31c0..69093b6 100644
--- a/org/ao_doc_abstraction.org
+++ b/org/ao_doc_abstraction.org
@@ -241,8 +241,8 @@ enum DomTags { none, open, close, close_and_open, open_still, }
 #+name: abs_top_init_struct
 #+BEGIN_SRC d
 void heading_ancestors(O)(
-  auto ref O         obj,
-  ref string[]       lv_ancestors,
+  auto return ref O          obj,
+  return ref string[]        lv_ancestors,
 ) {
   switch (obj.heading_lev_markup) {
   case 0:
@@ -2094,9 +2094,9 @@ auto object_reset(O)(ref O an_object) {
 #+name: abs_functions_header_set_common
 #+BEGIN_SRC d
 auto _common_reset_(L,O,T)(
-  ref L line_occur,
-  ref O an_object,
-  ref T type
+  return ref L line_occur,
+  return ref O an_object,
+  return ref T type
 ) {
   debug(asserts){
     static assert(is(typeof(line_occur) == int[string]));
@@ -2116,8 +2116,8 @@ auto _common_reset_(L,O,T)(
 #+name: abs_functions_ocn_status
 #+BEGIN_SRC d
 void _check_ocn_status_(L,T)(
-  L     line,
-  ref T type
+  L            line,
+  return ref T type
 ) {
   debug(asserts){
     static assert(is(typeof(line) == char[]));
@@ -2173,9 +2173,9 @@ void _check_ocn_status_(L,T)(
 #+name: abs_functions_block
 #+BEGIN_SRC d
 void _start_block_(L,T,N)(
-  L     line,
-  ref T type,
-  N     obj_cite_number_poem
+  L            line,
+  return ref T type,
+  N            obj_cite_number_poem
 ) {
   debug(asserts){
     static assert(is(typeof(line)                 == char[]));
@@ -2348,9 +2348,9 @@ void _start_block_(L,T,N)(
 #+name: abs_functions_block_code
 #+BEGIN_SRC d
 void _code_block_(L,O,T)(
-  ref L line,
-  ref O an_object,
-  ref T type
+  return ref L line,
+  return ref O an_object,
+  return ref T type
 ) {
   debug(asserts){
     static assert(is(typeof(line)      == char[]));
@@ -2484,11 +2484,11 @@ final string biblio_tag_map_(A)(A abr) {
 #+name: abs_functions_block_biblio
 #+BEGIN_SRC d
 void _biblio_block_(
-  char[] line,
-  ref int[string] type,
-  ref int bib_entry,
-  ref string biblio_entry_str_json,
-  ref string[] biblio_arr_json
+  char[]                 line,
+  return ref int[string] type,
+  return ref int         bib_entry,
+  return ref string      biblio_entry_str_json,
+  return ref string[]    biblio_arr_json
 ) {
   mixin SiSUbiblio;
   auto jsn = BibJsnStr();
@@ -2615,11 +2615,11 @@ why extra object stuff only in poem/verse?
 #+BEGIN_SRC d
 void _poem_block_(L,O,T,C,N,Ma)(
   L     line,
-  ref O an_object,
-  ref T type,
-  ref C cntr,
-  N     obj_cite_number_poem,
-  Ma    dochead_make_aa,
+  return ref O an_object,
+  return ref T type,
+  return ref C cntr,
+  N            obj_cite_number_poem,
+  Ma           dochead_make_aa,
 ) {
   debug(asserts){
     static assert(is(typeof(line)                 == char[]));
@@ -2822,9 +2822,9 @@ void _poem_block_(L,O,T,C,N,Ma)(
 #+name: abs_functions_block_group
 #+BEGIN_SRC d
 void _group_block_(L,O,T)(
-  ref L line,
-  ref O an_object,
-  ref T type
+  return ref L line,
+  return ref O an_object,
+  return ref T type
 ) {
   debug(asserts){
     static assert(is(typeof(line)      == char[]));
@@ -2869,9 +2869,9 @@ void _group_block_(L,O,T)(
 #+name: abs_functions_block_block
 #+BEGIN_SRC d
 void _block_block_(L,O,T)(
-  ref L line,
-  ref O an_object,
-  ref T type
+  return ref L line,
+  return ref O an_object,
+  return ref T type
 ) {
   debug(asserts){
     static assert(is(typeof(line)      == char[]));
@@ -2916,9 +2916,9 @@ void _block_block_(L,O,T)(
 #+name: abs_functions_block_quote
 #+BEGIN_SRC d
 void _quote_block_(L,O,T)(
-  ref L line,
-  ref O an_object,
-  ref T type
+  return ref L line,
+  return ref O an_object,
+  return ref T type
 ) {
   debug(asserts){
     static assert(is(typeof(line)      == char[]));
@@ -2963,9 +2963,9 @@ void _quote_block_(L,O,T)(
 #+name: abs_functions_block_table
 #+BEGIN_SRC d
 void _table_block_(L,O,T)(
-  ref L line,
-  ref O an_object,
-  ref T type
+  return ref L line,
+  return ref O an_object,
+  return ref T type
 ) {
   debug(asserts){
     static assert(is(typeof(line)      == char[]));
@@ -3012,15 +3012,15 @@ void _table_block_(L,O,T)(
 void _block_flag_line_empty_(B)(
   B                            bookindex_extract_hash,
   char[]                       line,
-  ref string[string]           an_object,
-  ref ObjGenericComposite[]    the_document_body_section,
-  ref string[][string][string] bookindex_unordered_hashes,
-  ref int                      obj_cite_number,
-  ref ObjGenericComposite      _comp_obj_heading,
-  ref int                      cntr,
-  ref int[string]              type,
-  string[string]               obj_cite_number_poem,
-  string[string][string]       dochead_make_aa,
+  return ref string[string]           an_object,
+  return ref ObjGenericComposite[]    the_document_body_section,
+  return ref string[][string][string] bookindex_unordered_hashes,
+  return ref int                      obj_cite_number,
+  return ref ObjGenericComposite      _comp_obj_heading,
+  return ref int                      cntr,
+  return ref int[string]              type,
+  string[string]                      obj_cite_number_poem,
+  string[string][string]              dochead_make_aa,
 ) {
   // line.empty, post contents, empty variables ---------------
   assert(
@@ -3238,10 +3238,10 @@ void _block_flag_line_empty_(B)(
 #+BEGIN_SRC d
 auto _book_index_(L,I,O,T,B)(
   L      line,
-  ref I  book_idx_tmp,
-  ref O  an_object,
-  ref T  type,
-  B      opt_action_bool,
+  return ref I  book_idx_tmp,
+  return ref O  an_object,
+  return ref T  type,
+  B             opt_action_bool,
 ) {
   debug(asserts){
     static assert(is(typeof(line)            == char[]));
@@ -3303,9 +3303,9 @@ auto _book_index_(L,I,O,T,B)(
 auto _heading_found_(L,X,H,R,T)(
   L     line,
   X     dochead_make_identify_unmarked_headings,
-  ref H heading_match_str,
-  ref R heading_match_rgx,
-  ref T type
+  return ref H heading_match_str,
+  return ref R heading_match_rgx,
+  return ref T type
 ) {
   debug(asserts){
     static assert(is(typeof(line)                                    == char[]));
@@ -3401,8 +3401,8 @@ auto _heading_found_(L,X,H,R,T)(
 auto _heading_make_set_(L,C,R,T)(
   L     line,
   C     line_occur,
-  ref R heading_match_rgx,
-  ref T type
+  return ref R heading_match_rgx,
+  return ref T type
 ) {
   debug(asserts){
     static assert(is(typeof(line)              == char[]));
@@ -3467,14 +3467,14 @@ auto _heading_make_set_(L,C,R,T)(
 #+name: abs_functions_heading
 #+BEGIN_SRC d
 auto _heading_matched_(L,C,O,K,Lv,Lc,T,Me)(
-  ref L  line,
-  ref C  line_occur,
-  ref O  an_object,
-  ref K  an_object_key,
-  ref Lv lv,
-  ref Lc collapsed_lev,
-  ref T  type,
-  ref Me dochead_meta_aa,
+  return ref L  line,
+  return ref C  line_occur,
+  return ref O  an_object,
+  return ref K  an_object_key,
+  return ref Lv lv,
+  return ref Lc collapsed_lev,
+  return ref T  type,
+  return ref Me dochead_meta_aa,
 ) {
   debug(asserts){
     static assert(is(typeof(line)            == char[]));
@@ -3627,13 +3627,13 @@ auto _heading_matched_(L,C,O,K,Lv,Lc,T,Me)(
 #+name: abs_functions_para
 #+BEGIN_SRC d
 auto _para_match_(L,O,K,I,B,T,C)(
-  ref L  line,
-  ref O  an_object,
-  ref K  an_object_key,
-  ref I  indent,
-  ref B  bullet,
-  ref T  type,
-  ref C  line_occur,
+  return ref L  line,
+  return ref O  an_object,
+  return ref K  an_object_key,
+  return ref I  indent,
+  return ref B  bullet,
+  return ref T  type,
+  return ref C  line_occur,
 ) {
   debug(asserts){
     static assert(is(typeof(line)          == char[]));
@@ -4123,12 +4123,12 @@ struct ObjInlineMarkup {
    return heading_toc_;
   };
   auto table_of_contents_gather_headings(O,Ma,Ts,Ta,X,Toc)(
-    O     obj_,
-    Ma    dochead_make_aa,
-    Ts    segment_anchor_tag_that_object_belongs_to,
-    Ta    _anchor_tag,
-    ref X lev4_subtoc,
-    Toc   the_table_of_contents_section,
+    O            obj_,
+    Ma           dochead_make_aa,
+    Ts           segment_anchor_tag_that_object_belongs_to,
+    Ta           _anchor_tag,
+    return ref X lev4_subtoc,
+    Toc          the_table_of_contents_section,
   )
   in {
     debug(asserts){
@@ -5370,8 +5370,8 @@ struct Bibliography {
 #+name: ao_emitters_bibliography
 #+BEGIN_SRC d
   public JSONValue[] _bibliography_(Bi,BJ)(
-    ref Bi biblio_unsorted_incomplete,
-    ref BJ bib_arr_json
+    return ref Bi biblio_unsorted_incomplete,
+    return ref BJ bib_arr_json
   )
   in {
     debug(asserts){
@@ -5408,8 +5408,8 @@ struct Bibliography {
 #+name: ao_emitters_bibliography
 #+BEGIN_SRC d
   final private JSONValue[] _biblio_unsorted_complete_(Bi,BJ)(
-    Bi     biblio_unordered,
-    ref BJ bib_arr_json
+    Bi            biblio_unordered,
+    return ref BJ bib_arr_json
   ) {
     debug(asserts){
       static assert(is(typeof(biblio_unordered) == string[]));
diff --git a/org/output.org b/org/output.org
index 9853d50..b77449d 100644
--- a/org/output.org
+++ b/org/output.org
@@ -395,7 +395,7 @@ auto tail() {
 #+name: xhtml_format_objects
 #+BEGIN_SRC d
 auto toc(O)(
-  auto ref const O         obj,
+  auto return ref const O    obj,
 ) {
   string o;
   o = format(q"¶  <div class="substance">
@@ -417,7 +417,7 @@ auto toc(O)(
 #+name: xhtml_format_objects
 #+BEGIN_SRC d
 auto heading(O)(
-  auto ref const O         obj,
+  auto return ref const O    obj,
 ) {
   auto tags = _xhtml_anchor_tags(obj.anchor_tags);
   string o;
@@ -462,7 +462,7 @@ auto heading(O)(
 #+name: xhtml_format_objects
 #+BEGIN_SRC d
 auto para(O)(
-  auto ref const O         obj,
+  auto return ref const O    obj,
 ) {
   auto tags = _xhtml_anchor_tags(obj.anchor_tags);
   string o;
@@ -504,7 +504,7 @@ auto para(O)(
 #+name: xhtml_format_objects
 #+BEGIN_SRC d
 auto nugget(O)(
-  auto ref const O         obj,
+  auto return ref const O    obj,
 ) {
   string o;
   if (obj.obj_cite_number.empty) {
@@ -539,7 +539,7 @@ auto nugget(O)(
 #+name: xhtml_format_objects
 #+BEGIN_SRC d
 auto endnote(O)(
-  auto ref const O         obj,
+  auto return ref const O    obj,
 ) {
   string o;
   o = format(q"¶    <p class="%s" indent="h%si%s">
@@ -559,7 +559,7 @@ auto endnote(O)(
 #+name: xhtml_format_objects_code
 #+BEGIN_SRC d
     auto code(O)(
-      auto ref const O         obj,
+      auto return ref const O  obj,
     ) {
       string o;
       if (obj.obj_cite_number.empty) {
@@ -609,8 +609,8 @@ template outputHTML() {
 #+name: output_html_scroll
 #+BEGIN_SRC d
 void scroll(D,I)(
-  auto ref const D         doc_abstraction,
-  auto ref I               doc_matters,
+  auto return ref const D    doc_abstraction,
+  auto return ref I          doc_matters,
 ) {
   mixin SiSUrgxInit;
   auto xhtml_format = outputXHTMLs();
@@ -783,8 +783,8 @@ void scroll_write_output(Fn,C)(
 #+name: output_html_seg
 #+BEGIN_SRC d
 void seg(D,I)(
-  auto ref const D         doc_abstraction,
-  auto ref I               doc_matters,
+  auto return ref const D    doc_abstraction,
+  auto return ref I          doc_matters,
 ) {
   mixin SiSUrgxInit;
   auto rgx = Rgx();
@@ -2495,8 +2495,8 @@ obj.segment_anchor_tag,   // lev < 4 [no link]; lev == 4 [filename] markup.xhtml
 #+name: output_epub_xhtml_seg
 #+BEGIN_SRC d
 void outputEPub(D,I)(
-  auto ref const D         doc_abstraction,
-  auto ref I               doc_matters,
+  auto return ref const D    doc_abstraction,
+  auto return ref I          doc_matters,
 ) {
   mixin SiSUrgxInit;
   auto xhtml_format = outputXHTMLs();
diff --git a/org/sdp.org b/org/sdp.org
index b0ff78c..c745741 100644
--- a/org/sdp.org
+++ b/org/sdp.org
@@ -23,7 +23,7 @@ struct Version {
   int minor;
   int patch;
 }
-enum ver = Version(0, 13, 1);
+enum ver = Version(0, 13, 2);
 #+END_SRC
 
 * 1. sdp (sisu document parser)                                         :sdp:
@@ -610,8 +610,8 @@ auto doc_matters = DocumentMatters();
 #+BEGIN_SRC d :tangle ../src/sdp/abstraction_summary.d
 template SiSUabstractionSummary() {
   auto SiSUabstractionSummary(S,T)(
-    auto ref const S         doc_abstraction,
-    auto ref T               doc_matters,
+    auto return ref const S  doc_abstraction,
+    auto return ref T        doc_matters,
   ) {
     <<abstraction_summary_imports>>
     mixin InternalMarkup;
diff --git a/src/sdp/abstraction_summary.d b/src/sdp/abstraction_summary.d
index 75faf0e..4a9fc80 100644
--- a/src/sdp/abstraction_summary.d
+++ b/src/sdp/abstraction_summary.d
@@ -1,7 +1,7 @@
 template SiSUabstractionSummary() {
   auto SiSUabstractionSummary(S,T)(
-    auto ref const S         doc_abstraction,
-    auto ref T               doc_matters,
+    auto return ref const S  doc_abstraction,
+    auto return ref T        doc_matters,
   ) {
     import
       ao_defaults,
diff --git a/src/sdp/ao_abstract_doc_source.d b/src/sdp/ao_abstract_doc_source.d
index a0dccbe..0775daf 100644
--- a/src/sdp/ao_abstract_doc_source.d
+++ b/src/sdp/ao_abstract_doc_source.d
@@ -88,8 +88,8 @@ template SiSUdocAbstraction() {
   int[] dom_collapsed_buffer = [ 0, 0, 0, 0, 0, 0, 0, 0, 0,];
   enum DomTags { none, open, close, close_and_open, open_still, }
   void heading_ancestors(O)(
-    auto ref O         obj,
-    ref string[]       lv_ancestors,
+    auto return ref O          obj,
+    return ref string[]        lv_ancestors,
   ) {
     switch (obj.heading_lev_markup) {
     case 0:
@@ -1594,9 +1594,9 @@ template SiSUdocAbstraction() {
     an_object.remove("bookindex_nugget");
   }
   auto _common_reset_(L,O,T)(
-    ref L line_occur,
-    ref O an_object,
-    ref T type
+    return ref L line_occur,
+    return ref O an_object,
+    return ref T type
   ) {
     debug(asserts){
       static assert(is(typeof(line_occur) == int[string]));
@@ -1610,8 +1610,8 @@ template SiSUdocAbstraction() {
     object_reset(an_object);
   }
   void _check_ocn_status_(L,T)(
-    L     line,
-    ref T type
+    L            line,
+    return ref T type
   ) {
     debug(asserts){
       static assert(is(typeof(line) == char[]));
@@ -1659,9 +1659,9 @@ template SiSUdocAbstraction() {
     }
   }
   void _start_block_(L,T,N)(
-    L     line,
-    ref T type,
-    N     obj_cite_number_poem
+    L            line,
+    return ref T type,
+    N            obj_cite_number_poem
   ) {
     debug(asserts){
       static assert(is(typeof(line)                 == char[]));
@@ -1809,9 +1809,9 @@ template SiSUdocAbstraction() {
     }
   }
   void _code_block_(L,O,T)(
-    ref L line,
-    ref O an_object,
-    ref T type
+    return ref L line,
+    return ref O an_object,
+    return ref T type
   ) {
     debug(asserts){
       static assert(is(typeof(line)      == char[]));
@@ -1872,11 +1872,11 @@ template SiSUdocAbstraction() {
     return btm[abr];
   }
   void _biblio_block_(
-    char[] line,
-    ref int[string] type,
-    ref int bib_entry,
-    ref string biblio_entry_str_json,
-    ref string[] biblio_arr_json
+    char[]                 line,
+    return ref int[string] type,
+    return ref int         bib_entry,
+    return ref string      biblio_entry_str_json,
+    return ref string[]    biblio_arr_json
   ) {
     mixin SiSUbiblio;
     auto jsn = BibJsnStr();
@@ -1996,11 +1996,11 @@ template SiSUdocAbstraction() {
   // 
   void _poem_block_(L,O,T,C,N,Ma)(
     L     line,
-    ref O an_object,
-    ref T type,
-    ref C cntr,
-    N     obj_cite_number_poem,
-    Ma    dochead_make_aa,
+    return ref O an_object,
+    return ref T type,
+    return ref C cntr,
+    N            obj_cite_number_poem,
+    Ma           dochead_make_aa,
   ) {
     debug(asserts){
       static assert(is(typeof(line)                 == char[]));
@@ -2197,9 +2197,9 @@ template SiSUdocAbstraction() {
     }
   }
   void _group_block_(L,O,T)(
-    ref L line,
-    ref O an_object,
-    ref T type
+    return ref L line,
+    return ref O an_object,
+    return ref T type
   ) {
     debug(asserts){
       static assert(is(typeof(line)      == char[]));
@@ -2238,9 +2238,9 @@ template SiSUdocAbstraction() {
     }
   }
   void _block_block_(L,O,T)(
-    ref L line,
-    ref O an_object,
-    ref T type
+    return ref L line,
+    return ref O an_object,
+    return ref T type
   ) {
     debug(asserts){
       static assert(is(typeof(line)      == char[]));
@@ -2279,9 +2279,9 @@ template SiSUdocAbstraction() {
     }
   }
   void _quote_block_(L,O,T)(
-    ref L line,
-    ref O an_object,
-    ref T type
+    return ref L line,
+    return ref O an_object,
+    return ref T type
   ) {
     debug(asserts){
       static assert(is(typeof(line)      == char[]));
@@ -2320,9 +2320,9 @@ template SiSUdocAbstraction() {
     }
   }
   void _table_block_(L,O,T)(
-    ref L line,
-    ref O an_object,
-    ref T type
+    return ref L line,
+    return ref O an_object,
+    return ref T type
   ) {
     debug(asserts){
       static assert(is(typeof(line)      == char[]));
@@ -2363,15 +2363,15 @@ template SiSUdocAbstraction() {
   void _block_flag_line_empty_(B)(
     B                            bookindex_extract_hash,
     char[]                       line,
-    ref string[string]           an_object,
-    ref ObjGenericComposite[]    the_document_body_section,
-    ref string[][string][string] bookindex_unordered_hashes,
-    ref int                      obj_cite_number,
-    ref ObjGenericComposite      _comp_obj_heading,
-    ref int                      cntr,
-    ref int[string]              type,
-    string[string]               obj_cite_number_poem,
-    string[string][string]       dochead_make_aa,
+    return ref string[string]           an_object,
+    return ref ObjGenericComposite[]    the_document_body_section,
+    return ref string[][string][string] bookindex_unordered_hashes,
+    return ref int                      obj_cite_number,
+    return ref ObjGenericComposite      _comp_obj_heading,
+    return ref int                      cntr,
+    return ref int[string]              type,
+    string[string]                      obj_cite_number_poem,
+    string[string][string]              dochead_make_aa,
   ) {
     // line.empty, post contents, empty variables ---------------
     assert(
@@ -2583,10 +2583,10 @@ template SiSUdocAbstraction() {
   }
   auto _book_index_(L,I,O,T,B)(
     L      line,
-    ref I  book_idx_tmp,
-    ref O  an_object,
-    ref T  type,
-    B      opt_action_bool,
+    return ref I  book_idx_tmp,
+    return ref O  an_object,
+    return ref T  type,
+    B             opt_action_bool,
   ) {
     debug(asserts){
       static assert(is(typeof(line)            == char[]));
@@ -2641,9 +2641,9 @@ template SiSUdocAbstraction() {
   auto _heading_found_(L,X,H,R,T)(
     L     line,
     X     dochead_make_identify_unmarked_headings,
-    ref H heading_match_str,
-    ref R heading_match_rgx,
-    ref T type
+    return ref H heading_match_str,
+    return ref R heading_match_rgx,
+    return ref T type
   ) {
     debug(asserts){
       static assert(is(typeof(line)                                    == char[]));
@@ -2733,8 +2733,8 @@ template SiSUdocAbstraction() {
   auto _heading_make_set_(L,C,R,T)(
     L     line,
     C     line_occur,
-    ref R heading_match_rgx,
-    ref T type
+    return ref R heading_match_rgx,
+    return ref T type
   ) {
     debug(asserts){
       static assert(is(typeof(line)              == char[]));
@@ -2793,14 +2793,14 @@ template SiSUdocAbstraction() {
     }
   }
   auto _heading_matched_(L,C,O,K,Lv,Lc,T,Me)(
-    ref L  line,
-    ref C  line_occur,
-    ref O  an_object,
-    ref K  an_object_key,
-    ref Lv lv,
-    ref Lc collapsed_lev,
-    ref T  type,
-    ref Me dochead_meta_aa,
+    return ref L  line,
+    return ref C  line_occur,
+    return ref O  an_object,
+    return ref K  an_object_key,
+    return ref Lv lv,
+    return ref Lc collapsed_lev,
+    return ref T  type,
+    return ref Me dochead_meta_aa,
   ) {
     debug(asserts){
       static assert(is(typeof(line)            == char[]));
@@ -2947,13 +2947,13 @@ template SiSUdocAbstraction() {
     }
   }
   auto _para_match_(L,O,K,I,B,T,C)(
-    ref L  line,
-    ref O  an_object,
-    ref K  an_object_key,
-    ref I  indent,
-    ref B  bullet,
-    ref T  type,
-    ref C  line_occur,
+    return ref L  line,
+    return ref O  an_object,
+    return ref K  an_object_key,
+    return ref I  indent,
+    return ref B  bullet,
+    return ref T  type,
+    return ref C  line_occur,
   ) {
     debug(asserts){
       static assert(is(typeof(line)          == char[]));
@@ -3413,12 +3413,12 @@ template SiSUdocAbstraction() {
      return heading_toc_;
     };
     auto table_of_contents_gather_headings(O,Ma,Ts,Ta,X,Toc)(
-      O     obj_,
-      Ma    dochead_make_aa,
-      Ts    segment_anchor_tag_that_object_belongs_to,
-      Ta    _anchor_tag,
-      ref X lev4_subtoc,
-      Toc   the_table_of_contents_section,
+      O            obj_,
+      Ma           dochead_make_aa,
+      Ts           segment_anchor_tag_that_object_belongs_to,
+      Ta           _anchor_tag,
+      return ref X lev4_subtoc,
+      Toc          the_table_of_contents_section,
     )
     in {
       debug(asserts){
@@ -4456,8 +4456,8 @@ template SiSUdocAbstraction() {
   /+ +/
   struct Bibliography {
     public JSONValue[] _bibliography_(Bi,BJ)(
-      ref Bi biblio_unsorted_incomplete,
-      ref BJ bib_arr_json
+      return ref Bi biblio_unsorted_incomplete,
+      return ref BJ bib_arr_json
     )
     in {
       debug(asserts){
@@ -4488,8 +4488,8 @@ template SiSUdocAbstraction() {
       return biblio_sorted__;
     }
     final private JSONValue[] _biblio_unsorted_complete_(Bi,BJ)(
-      Bi     biblio_unordered,
-      ref BJ bib_arr_json
+      Bi            biblio_unordered,
+      return ref BJ bib_arr_json
     ) {
       debug(asserts){
         static assert(is(typeof(biblio_unordered) == string[]));
diff --git a/src/sdp/ao_conf_make_meta_native.d b/src/sdp/ao_conf_make_meta_native.d
index a5e60ef..08a7d9f 100644
--- a/src/sdp/ao_conf_make_meta_native.d
+++ b/src/sdp/ao_conf_make_meta_native.d
@@ -215,10 +215,10 @@ template SiSUheaderExtractNative() {
       return t;
     }
     private auto native_header_extract(L,Lo,O,T)(
-      L line,
-      ref Lo line_occur,
-      ref O an_object,
-      ref T type
+      L                line,
+      return ref Lo    line_occur,
+      return ref O     an_object,
+      return ref T     type
     ) {
       debug(asserts){
         static assert(is(typeof(line)       == char[]));
@@ -259,9 +259,9 @@ template SiSUheaderExtractNative() {
       return an_object;
     }
     auto header_reset_states_common(Lo,O,T)(
-      ref Lo line_occur,
-      ref O  an_object,
-      ref T  type
+      return ref Lo    line_occur,
+      return ref O     an_object,
+      return ref T     type
     ) {
       debug(asserts){
         static assert(is(typeof(line_occur) == int[string]));
diff --git a/src/sdp/ao_doc_debugs.d b/src/sdp/ao_doc_debugs.d
index feb7de4..2c0da82 100644
--- a/src/sdp/ao_doc_debugs.d
+++ b/src/sdp/ao_doc_debugs.d
@@ -23,8 +23,8 @@ template SiSUdebugs() {
     std.utf,
     std.conv : to;
   auto SiSUdebugs(S,T)(
-    auto ref const S         contents,
-    auto ref T               doc_matters,
+    auto return ref const S  contents,
+    auto return ref T        doc_matters,
   ) {
     mixin SiSUrgxInit;
     mixin InternalMarkup;
@@ -580,8 +580,8 @@ template SiSUdebugs() {
         }
         debug(checkdoc) {
           void out_segnames(S,T)(
-            auto ref const S         contents,
-            auto ref T               doc_matters,
+            auto return ref const S  contents,
+            auto return ref T        doc_matters,
           ) {
             foreach (key; doc_matters.keys_seq_seg) {
               if (contents[key].length > 1) {
@@ -596,7 +596,7 @@ template SiSUdebugs() {
         }
         debug(checkdoc) {
           void out_toc(S)(
-            auto ref const S         contents,
+            auto return ref const S  contents,
             string                   key,
           ) {
             if (contents[key].length > 1) {
@@ -614,7 +614,7 @@ template SiSUdebugs() {
         }
         debug(checkdoc) {
           void out_endnotes(S)(
-            auto ref const S         contents,
+            auto return ref const S  contents,
             string                   key,
           ) {
             if (contents[key].length > 1) {
@@ -630,7 +630,7 @@ template SiSUdebugs() {
         }
         debug(checkdoc) {
           void out_bookindex(S)(
-            auto ref const S         contents,
+            auto return ref const S  contents,
             string                   key,
           ) {
             if (contents[key].length > 1) {
diff --git a/src/sdp/output_epub.d b/src/sdp/output_epub.d
index bc28776..ca11828 100644
--- a/src/sdp/output_epub.d
+++ b/src/sdp/output_epub.d
@@ -158,8 +158,8 @@ template outputEPub() {
   }
   
   void outputEPub(D,I)(
-    auto ref const D         doc_abstraction,
-    auto ref I               doc_matters,
+    auto return ref const D    doc_abstraction,
+    auto return ref I          doc_matters,
   ) {
     mixin SiSUrgxInit;
     auto xhtml_format = outputXHTMLs();
diff --git a/src/sdp/output_html.d b/src/sdp/output_html.d
index b98be41..9b8fc86 100644
--- a/src/sdp/output_html.d
+++ b/src/sdp/output_html.d
@@ -24,8 +24,8 @@ template outputHTML() {
   mixin outputXHTMLs;
   
   void scroll(D,I)(
-    auto ref const D         doc_abstraction,
-    auto ref I               doc_matters,
+    auto return ref const D    doc_abstraction,
+    auto return ref I          doc_matters,
   ) {
     mixin SiSUrgxInit;
     auto xhtml_format = outputXHTMLs();
@@ -185,8 +185,8 @@ template outputHTML() {
     }
   }
   void seg(D,I)(
-    auto ref const D         doc_abstraction,
-    auto ref I               doc_matters,
+    auto return ref const D    doc_abstraction,
+    auto return ref I          doc_matters,
   ) {
     mixin SiSUrgxInit;
     auto rgx = Rgx();
diff --git a/src/sdp/output_xhtmls.d b/src/sdp/output_xhtmls.d
index 4288ab8..6a4c3a3 100644
--- a/src/sdp/output_xhtmls.d
+++ b/src/sdp/output_xhtmls.d
@@ -99,7 +99,7 @@ template outputXHTMLs() {
       return o;
     }
     auto toc(O)(
-      auto ref const O         obj,
+      auto return ref const O    obj,
     ) {
       string o;
       o = format(q"¶  <div class="substance">
@@ -115,7 +115,7 @@ template outputXHTMLs() {
       return o;
     }
     auto heading(O)(
-      auto ref const O         obj,
+      auto return ref const O    obj,
     ) {
       auto tags = _xhtml_anchor_tags(obj.anchor_tags);
       string o;
@@ -154,7 +154,7 @@ template outputXHTMLs() {
       return o;
     }
     auto para(O)(
-      auto ref const O         obj,
+      auto return ref const O    obj,
     ) {
       auto tags = _xhtml_anchor_tags(obj.anchor_tags);
       string o;
@@ -190,7 +190,7 @@ template outputXHTMLs() {
       return o;
     }
     auto nugget(O)(
-      auto ref const O         obj,
+      auto return ref const O    obj,
     ) {
       string o;
       if (obj.obj_cite_number.empty) {
@@ -219,7 +219,7 @@ template outputXHTMLs() {
       return o;
     }
     auto endnote(O)(
-      auto ref const O         obj,
+      auto return ref const O    obj,
     ) {
       string o;
       o = format(q"¶    <p class="%s" indent="h%si%s">
@@ -233,7 +233,7 @@ template outputXHTMLs() {
       return o;
     }
     auto code(O)(
-      auto ref const O         obj,
+      auto return ref const O  obj,
     ) {
       string o;
       if (obj.obj_cite_number.empty) {
diff --git a/views/version.txt b/views/version.txt
index ad6bb08..da804c0 100644
--- a/views/version.txt
+++ b/views/version.txt
@@ -4,4 +4,4 @@ struct Version {
   int minor;
   int patch;
 }
-enum ver = Version(0, 13, 1);
+enum ver = Version(0, 13, 2);