1 files changed, 7 insertions, 2 deletions
diff --git a/src/sdp/abstraction.d b/src/sdp/abstraction.d
index d6124a0..51b76d6 100644
--- a/src/sdp/abstraction.d
+++ b/src/sdp/abstraction.d
@@ -37,7 +37,7 @@ template SiSUabstraction() {
   mixin outputHub;
   enum headBody { header, body_content, insert_filelist }
   enum makeMeta { make, meta }
-  enum docAbst  { doc_abstraction, section_keys, segnames, images }
+  enum docAbst  { doc_abstraction, section_keys, segnames, segnames_0_4, images }
   auto rgx = Rgx();
   auto SiSUabstraction(Fn,O,E)(Fn fn_src, O opts, E env){
     auto sdl_root_configuration = ConfigHub!()("conf.sdl", env);
@@ -69,10 +69,11 @@ template SiSUabstraction() {
       opts
     );
     static assert(!isTypeTuple!(da));
-    static assert(da.length==4);
+    static assert(da.length==5);
     auto doc_abstraction = da[docAbst.doc_abstraction]; // head ~ toc ~ body ~ endnotes_seg ~ glossary ~ bibliography ~ bookindex ~blurb;
     auto _document_section_keys_sequenced = da[docAbst.section_keys];
     string[] _doc_html_segnames = da[docAbst.segnames];
+    string[] _doc_epub_segnames_0_4 = da[docAbst.segnames_0_4];
     auto _images = da[docAbst.images];
     struct DocumentMatters {
       auto keys_seq() {
@@ -84,6 +85,10 @@ template SiSUabstraction() {
         string[] _k = _doc_html_segnames;
         return _k;
       }
+      string[] segnames_lv_0_to_4() {
+        string[] _k = _doc_epub_segnames_0_4;
+        return _k;
+      }
       auto dochead_make() {
         string[string][string] _k = _make_and_meta[makeMeta.make];
         return _k;