Merge tag 'sisu_5.4.3' into debian/sid

SiSU 5.4.3

58 files changed, 3526 insertions, 1315 deletions

diff --git a/data/doc/sisu/CHANGELOG_v5 b/data/doc/sisu/CHANGELOG_v5
index e3cab630..ec8eb24f 100644
--- a/data/doc/sisu/CHANGELOG_v5
+++ b/data/doc/sisu/CHANGELOG_v5
@@ -31,6 +31,45 @@ v2 branch is removed; it is available in sisu =< 3.3.2
 
 %% Reverse Chronological:
 
+%% 5.4.3.orig.tar.xz (2014-07-01:26/2)
+http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=shortlog;h=refs/tags/sisu_5.4.3
+http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=shortlog;h=refs/tags/debian/sisu_5.4.3-1
+http://www.jus.uio.no/sisu/pkg/src/sisu_5.4.3.orig.tar.xz
+  sisu_5.4.3.orig.tar.xz
+  sisu_5.4.3-1.dsc
+
+* ao,
+  * code cosmetic rearrangement
+  * book index, strip white spaces around terms
+    (fix uppercase first character where spaces used)
+  * quote block, insert text indent markup, exclude book index
+  * doc objects, layout group open & close identify is_for
+  * segment numbering, fixed width, leading zeros (for alphanumeric sorting)
+
+* code cosmetic rearrangement
+  * ao*, param, hub, options, composite
+
+* sysenv, developer _CONSTRUCTION_ZONE warning modified
+
+* merge what was sisu_6.0.8 into v5
+  * ao,
+    * syntax, able optionally to indicate the language syntax of a code block
+    * syntax, introduce box text block/group
+    * syntax, introduce tics quotes markup (blockquote equivalent)
+  * docbook,
+    * ocn & footnote numbers (as xml comments)
+    * metadata header (docinfo)
+    * quotes (blockquote)
+    * tables
+    * images
+    * code block
+  * vim syntax, add
+    * code block, language syntax, optional
+    * box block
+    * quote block
+
+* epub, a fix, double check
+
 %% 5.4.2.orig.tar.xz (2014-06-22:24/7)
 http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=shortlog;h=refs/tags/sisu_5.4.2
 http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=shortlog;h=refs/tags/debian/sisu_5.4.2-1
diff --git a/data/doc/sisu/CHANGELOG_v6 b/data/doc/sisu/CHANGELOG_v6
index 4d324faa..ada19da7 100644
--- a/data/doc/sisu/CHANGELOG_v6
+++ b/data/doc/sisu/CHANGELOG_v6
@@ -21,6 +21,28 @@ v2 branch is removed; it is available in sisu =< 3.3.2
 
 %% Reverse Chronological:
 
+%% 6.0.9.orig.tar.xz (2014-07-01:26/2)
+http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=shortlog;h=refs/tags/sisu_6.0.9
+http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=shortlog;h=refs/tags/debian/sisu_6.0.9-1
+http://www.jus.uio.no/sisu/pkg/src/sisu_6.0.9.orig.tar.xz
+  sisu_6.0.9.orig.tar.xz
+  sisu_6.0.9-1.dsc
+
+* ao,
+  * code cosmetic rearrangement
+  * book index, strip white spaces around terms
+    (fix uppercase first character where spaces used)
+  * quote block, insert text indent markup, exclude book index
+  * doc objects, layout group open & close identify is_for
+  * segment numbering, fixed width, leading zeros (for alphanumeric sorting)
+
+* code cosmetic rearrangement
+  * ao*, param, hub, options, composite
+
+* sysenv, developer _CONSTRUCTION_ZONE warning modified
+
+* epub, a fix, double check
+
 %% 6.0.8.orig.tar.xz (2014-06-19:24/4)
 http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=shortlog;h=refs/tags/sisu_6.0.8
 http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=shortlog;h=refs/tags/debian/sisu_6.0.8-1
diff --git a/data/doc/sisu/sisu.org b/data/doc/sisu/sisu.org
index 341cdd52..83e74f11 100644
--- a/data/doc/sisu/sisu.org
+++ b/data/doc/sisu/sisu.org
@@ -1459,7 +1459,7 @@ That said re pdf, LaTeX XeTeX are flexible, it may be possible to drop the ocn
 at the start of a code block lower on its line so that it is closer to the code
 that follows
 
-**** DONE (6.0.5) [#D] #744353 [w|u] sisu output: please do not use typewriter for urls :output:consider:
+**** DONE (5.3.5::6.0.5) [#D] #744353 [w|u] sisu output: please do not use typewriter for urls :output:consider:
       <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=744353>
 
 From: Daniel Baumann <daniel.baumann@progress-technologies.net>
@@ -1640,7 +1640,7 @@ Daniel
 for pdf fix/implement mailto links
 done but requires further testing & possibly refinement
 
-**** DONE (6.0.5) [#C] #744358 [w|u] sisu output: please do not add ';' after \:copyright: :output:fix:
+**** DONE (5.3.5::6.0.5) [#C] #744358 [w|u] sisu output: please do not add ';' after \:copyright: :output:fix:
       <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=744358>
 
 From: Daniel Baumann <daniel.baumann@progress-technologies.net>
@@ -1864,7 +1864,7 @@ there has been no rule to the contrary (i.e. that headings should be on a single
 
 consider, should there be such a rule?
 
-**** DONE (6.0.5) [#B] #744386 [w|u] sisu syntax: 1~ and 2~ result in the same formatting :output:pdf:fix: (see #744383)
+**** DONE (5.3.5::6.0.5) [#B] #744386 [w|u] sisu syntax: 1~ and 2~ result in the same formatting :output:pdf:fix: (see #744383)
       <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=744386>
 
 From: Daniel Baumann <daniel.baumann@progress-technologies.net>
@@ -1931,7 +1931,7 @@ seemed to work (checked pdf & html (scroll & seg))
 was not able to reproduce
 will look again
 
-**** DONE (6.0.5) [#C] #744391 [w|u] sisu output: no color on a4 portrait :output:pdf:contemplate:
+**** DONE (5.3.5::6.0.5) [#C] #744391 [w|u] sisu output: no color on a4 portrait :output:pdf:contemplate:
       <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=744391>
 
 From: Daniel Baumann <daniel.baumann@progress-technologies.net>
@@ -2062,7 +2062,7 @@ Daniel
 
 will look at: should be possible; requires a configuration option
 
-**** DONE (6.0.5) [#B] #744399 [w|u] sisu syntax: :A smaller formatted than :B :output:fix: (see #744383) (partial solution)
+**** DONE (5.3.5::6.0.5) [#B] #744399 [w|u] sisu syntax: :A smaller formatted than :B :output:fix: (see #744383) (partial solution)
       <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=744399>
 
 From: Daniel Baumann <daniel.baumann@progress-technologies.net>
@@ -2099,7 +2099,7 @@ now is same size see #744383
 \subsection    (level 2)
 \subsubsection (level 3)
 
-**** DONE (6.0.5) [#C] #744402 [w|u] sisu: support sha512 :implement:
+**** DONE (5.3.5::6.0.5) [#C] #744402 [w|u] sisu: support sha512 :implement:
       <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=744402>
 
 From: Daniel Baumann <daniel.baumann@progress-technologies.net>
@@ -2124,7 +2124,7 @@ Daniel
 implemented
 document command line option --sha512
 
-**** DONE (6.0.5) [#C] #744405 [w|u] sisu: set default font size :configuration:pdf:implement:
+**** DONE (5.3.5::6.0.5) [#C] #744405 [w|u] sisu: set default font size :configuration:pdf:implement:
       <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=744405>
 
 From: Daniel Baumann <daniel.baumann@progress-technologies.net>
diff --git a/data/sisu/conf/editor-syntax-etc/vim/syntax/sisu.vim b/data/sisu/conf/editor-syntax-etc/vim/syntax/sisu.vim
index 03e1766f..3bb1a5ea 100644
--- a/data/sisu/conf/editor-syntax-etc/vim/syntax/sisu.vim
+++ b/data/sisu/conf/editor-syntax-etc/vim/syntax/sisu.vim
@@ -1,7 +1,7 @@
 " SiSU Vim syntax file
 " SiSU Maintainer: Ralph Amissah <ralph@amissah.com>
-" SiSU Markup:     SiSU (sisu-6.0.8)
-" Last Change:     2014-06-19
+" SiSU Markup:     SiSU (sisu-5.4.3)
+" Last Change:     2014-07-01
 " URL: <http://git.sisudoc.org/?p=code/sisu.git;a=blob;f=data/sisu/conf/editor-syntax-etc/vim/syntax/sisu.vim;hb=HEAD>
 "(originally looked at Ruby Vim by Mirko Nasato)
 
diff --git a/data/sisu/v5/v/version.yml b/data/sisu/v5/v/version.yml
index a6fa41e7..b6d8dfa8 100644
--- a/data/sisu/v5/v/version.yml
+++ b/data/sisu/v5/v/version.yml
@@ -1,5 +1,5 @@
 ---
 :project: SiSU
-:version: 5.4.2
-:date_stamp: 2014w24/7
-:date: "2014-06-22"
+:version: 5.4.3
+:date_stamp: 2014w26/2
+:date: "2014-07-01"
diff --git a/data/sisu/v6/v/version.yml b/data/sisu/v6/v/version.yml
index 563a9713..fb9cc955 100644
--- a/data/sisu/v6/v/version.yml
+++ b/data/sisu/v6/v/version.yml
@@ -1,5 +1,5 @@
 ---
 :project: SiSU
-:version: 6.0.8
-:date_stamp: 2014w24/4
-:date: "2014-06-19"
+:version: 6.0.9
+:date_stamp: 2014w26/2
+:date: "2014-07-01"
diff --git a/lib/sisu/v5/ao.rb b/lib/sisu/v5/ao.rb
index c69e3be9..ee99805d 100644
--- a/lib/sisu/v5/ao.rb
+++ b/lib/sisu/v5/ao.rb
@@ -162,7 +162,9 @@ module SiSU_AO
           : @opt.fns
           @@idx_arr[:sst]=[]
         end
-        ao=(@@idx_arr[:sst].empty?) ? read_idx_sst : @@idx_arr[:sst].dup #check
+        ao=(@@idx_arr[:sst].empty?) \
+        ? read_idx_sst
+        : @@idx_arr[:sst].dup #check
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -181,7 +183,9 @@ module SiSU_AO
           : @opt.fns
           @@idx_arr[:tex]=[]
         end
-        ao=(@@idx_arr[:tex].empty?) ? read_idx_raw : @@idx_arr[:tex].dup #check
+        ao=(@@idx_arr[:tex].empty?) \
+        ? read_idx_raw
+        : @@idx_arr[:tex].dup #check
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -200,7 +204,9 @@ module SiSU_AO
           : @opt.fns
           @@idx_arr[:html]=[]
         end
-        ao=(@@idx_arr[:html].empty?) ? read_idx_html : @@idx_arr[:html].dup
+        ao=(@@idx_arr[:html].empty?) \
+        ? read_idx_html
+        : @@idx_arr[:html].dup
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -219,7 +225,9 @@ module SiSU_AO
           : @opt.fns
           @@idx_arr[:xthml]=[]
         end
-        ao=(@@idx_arr[:xhtml].empty?) ? read_idx_xhtml : @@idx_arr[:xhtml].dup
+        ao=(@@idx_arr[:xhtml].empty?) \
+        ? read_idx_xhtml
+        : @@idx_arr[:xhtml].dup
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -238,7 +246,9 @@ module SiSU_AO
           : @opt.fns
           @@map_arr[:nametags]=[]
         end
-        ao=(@@map_arr[:nametags].empty?) ? read_map_nametags : @@map_arr[:nametags].dup
+        ao=(@@map_arr[:nametags].empty?) \
+        ? read_map_nametags
+        : @@map_arr[:nametags].dup
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -257,7 +267,9 @@ module SiSU_AO
           : @opt.fns
           @@map_arr[:ocn_htmlseg]=[]
         end
-        ao=(@@map_arr[:ocn_htmlseg].empty?) ? read_map_ocn_htmlseg : @@map_arr[:ocn_htmlseg].dup
+        ao=(@@map_arr[:ocn_htmlseg].empty?) \
+        ? read_map_ocn_htmlseg
+        : @@map_arr[:ocn_htmlseg].dup
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -273,8 +285,14 @@ module SiSU_AO
         tell=(@opt.act[:verbose][:set]==:on \
         || @opt.act[:verbose_plus][:set]==:on \
         || @opt.act[:maintenance][:set]==:on) \
-        ? SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'Document Abstraction')
-        : SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'Document Abstraction',"[#{@opt.f_pth[:lng_is]}] #{@opt.fno}")
+        ? SiSU_Screen::Ansi.new(
+            @opt.act[:color_state][:set],
+            'Document Abstraction'
+          )
+        : SiSU_Screen::Ansi.new(
+            @opt.act[:color_state][:set],
+            'Document Abstraction',"[#{@opt.f_pth[:lng_is]}] #{@opt.fno}"
+          )
         tell.blue_title_hi
       end
       fn=(@fnx && @fnx =~/\.ss[tmi]$/) \
@@ -293,9 +311,16 @@ module SiSU_AO
         cf=SiSU_Env::CreateFile.new(fn)
         if (@opt.act[:verbose][:set]==:on \
         || @opt.act[:verbose_plus][:set]==:on)
-          SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],@opt.fns,"~meta/#{@opt.fns}.meta").output
+            SiSU_Screen::Ansi.new(
+            @opt.act[:color_state][:set],
+            @opt.fns,
+            "~meta/#{@opt.fns}.meta"
+          ).output
         elsif @opt.act[:maintenance][:set]==:on
-          SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],"ao -> #{cf.meta}").txt_grey
+          SiSU_Screen::Ansi.new(
+            @opt.act[:color_state][:set],
+            "ao -> #{cf.meta}"
+          ).txt_grey
         end
       end
       ao.each {|s| ao_array << s}
@@ -435,7 +460,8 @@ module SiSU_AO
           if defined? o.ocn
             case o.is
             when :heading
-              filename_debug.puts "#{o.is.to_s} #{o.lv}~#{o.name} odv=#{o.odv} osp=#{o.osp} [#{o.ocn}] -->\n\t#{o.obj}"
+              filename_debug.puts
+                "#{o.is.to_s} #{o.lv}~#{o.name} odv=#{o.odv} osp=#{o.osp} [#{o.ocn}] -->\n\t#{o.obj}"
             end
           end
         end
@@ -507,23 +533,37 @@ module SiSU_AO
       reset
       data_txt=@data
       data_txt=
-        SiSU_AO_Insertions::Insertions.new(@md,data_txt).expand_insertions?                        # ao_expand_insertions.rb
+        SiSU_AO_Insertions::Insertions.new(@md,data_txt).            # ao_expand_insertions.rb
+          expand_insertions?
       data_txt=
-        SiSU_AO_MiscArrangeText::SI.new(@md,data_txt).prepare_text                                 # ao_misc_arrange.rb
-      data_obj,metadata=
-        SiSU_AO_DocumentStructureExtract::Build.new(@md,data_txt).identify_parts                   # ao_doc_str.rb
+        SiSU_AO_MiscArrangeText::SI.new(@md,data_txt).               # ao_misc_arrange.rb
+          prepare_text
+      data_obj,
+        metadata=
+          SiSU_AO_DocumentStructureExtract::Build.new(@md,data_txt). # ao_doc_str.rb
+            identify_parts
       data_obj=
-        SiSU_AO_Syntax::Markup.new(@md,data_obj).songsheet                                         # ao_syntax.rb
-      data_obj,endnote_array=
-        SiSU_AO_CharacterCheck::Check.new(data_obj).character_check_and_oldstyle_endnote_array     # ao_character_check.rb
+        SiSU_AO_Syntax::Markup.new(@md,data_obj).songsheet           # ao_syntax.rb
+      data_obj,
+        endnote_array=
+          SiSU_AO_CharacterCheck::Check.new(data_obj).               # ao_character_check.rb
+            character_check_and_oldstyle_endnote_array
       data_obj=
-         SiSU_AO_Images::Images.new(@md,data_obj).images                                           # ao_images.rb
-      data_obj,tags_map,ocn_html_seg_map=
-        SiSU_AO_Numbering::Numbering.new(@md,data_obj).numbering_song                              # ao_numbering.rb
-      data_obj,book_index_rel,book_index_rel_html_seg,html_idx,xhtml_idx=
-        SiSU_AO_BookIndex::BookIndex.new(@md,data_obj,@env).indexing_song if @md.book_idx          # ao_idx.rb
+         SiSU_AO_Images::Images.new(@md,data_obj).images             # ao_images.rb
+      data_obj,
+        tags_map,
+        ocn_html_seg_map=
+          SiSU_AO_Numbering::Numbering.new(@md,data_obj).            # ao_numbering.rb
+            numbering_song
+      data_obj,
+        book_index_rel,
+        book_index_rel_html_seg,
+        html_idx,xhtml_idx=
+          SiSU_AO_BookIndex::BookIndex.new(@md,data_obj,@env).       # ao_idx.rb
+            indexing_song if @md.book_idx
       data_obj=
-        SiSU_AO_Endnotes::Endnotes.new(@md,data_obj,endnote_array).endnotes                        # ao_endnotes.rb
+        SiSU_AO_Endnotes::Endnotes.new(@md,data_obj,endnote_array).  # ao_endnotes.rb
+          endnotes
       outputdata=data_obj
       if (@md.opt.act[:ao][:set]==:on \
       || @md.opt.act[:maintenance][:set]==:on)
diff --git a/lib/sisu/v5/ao_character_check.rb b/lib/sisu/v5/ao_character_check.rb
index ef45679a..d32b3d4b 100644
--- a/lib/sisu/v5/ao_character_check.rb
+++ b/lib/sisu/v5/ao_character_check.rb
@@ -80,9 +80,9 @@ module SiSU_AO_CharacterCheck
             gsub(/(#{Mx[:en_a_o]})\s*\s+/,'\1 ').
             gsub(/(~\{\s*)\s+/,'\1 ').
             gsub(/ \/\//,"#{Mx[:br_line]}").
-            gsub(/<br>/,"#{Mx[:br_line]}").                              #needed by xml, xhtml etc.
+            gsub(/<br>/,"#{Mx[:br_line]}").                #needed by xml, xhtml etc.
             gsub(/\t/,' ').
-            gsub(/\342\200\231/u,"'"). #if dob =~/’/  #Avoid #&lsquo; &rsquo; #&ldquo; &rdquo;
+            gsub(/\342\200\231/u,"'"). #if dob =~/’/       #Avoid #&lsquo; &rsquo; #&ldquo; &rdquo;
             gsub(/\\copy(?:right)?\b/,'&#169;').
             gsub(/\\trademark\b|\\tm\b/,'&#174;')
           dob.obj=dob.obj + "\n"
@@ -91,8 +91,9 @@ module SiSU_AO_CharacterCheck
             when /\^~/                                     #% Note must do this first (earlier loop) and then enter gathered data into ~^\d+
               sub_dob=dob.obj.dup
               @endnote_array << sub_dob.gsub(/\n/,'').
-                gsub(/\^~\s+(.+)\s*/,%{#{Mx[:en_a_o]}#{endnote_no} \\1 #{Mx[:en_a_c]}}).
-                strip
+                gsub(/\^~\s+(.+)\s*/,
+                  %{#{Mx[:en_a_o]}#{endnote_no} \\1 #{Mx[:en_a_c]}}).
+                  strip
               endnote_no+=1
               dob=nil if dob.obj =~/\^~ .+/                #watch, removes 'binary' endnote now in endnote array for later insertion
             end
diff --git a/lib/sisu/v5/composite.rb b/lib/sisu/v5/ao_composite.rb
index 9f722799..a7d0e48c 100644
--- a/lib/sisu/v5/composite.rb
+++ b/lib/sisu/v5/ao_composite.rb
@@ -51,7 +51,7 @@
 
  * Git
    <http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=summary>
-   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/composite.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/ao_composite.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
@@ -74,7 +74,8 @@ module SiSU_Assemble
     end
     def download_images(images_info)
       path="#{@env.processing_path.processing}/external_document/image"
-      FileUtils::mkdir_p(path) unless FileTest.directory?(path)
+      FileUtils::mkdir_p(path) \
+        unless FileTest.directory?(path)
       download_from=images_info.shift
       images_info.each do |i|
         image="#{path}/#{i}"
@@ -85,7 +86,8 @@ module SiSU_Assemble
         imagefile.close
       end
       output_path="#{@env.path.webserv}/#{@env.path.stub_pwd}/_sisu/image_external"
-      FileUtils::mkdir_p(output_path) unless FileTest.directory?(output_path)
+      FileUtils::mkdir_p(output_path) \
+        unless FileTest.directory?(output_path)
       SiSU_Env::SystemCall.new("#{path}/*",output_path,'q').rsync
     end
   end
@@ -99,8 +101,8 @@ module SiSU_Assemble
       begin
         pwd=Dir.pwd
         Dir.chdir(@opt.f_pth[:pth])
-        @fns_array=IO.readlines(@opt.fno,'')
-        assembled=insertions?
+        fns_array=IO.readlines(@opt.fno,'')
+        assembled=insertions?(fns_array)
         write(assembled)
         Dir.chdir(pwd)
       rescue
@@ -141,7 +143,9 @@ module SiSU_Assemble
         end
         if not @code_flag \
         and i !~/^%+\s/
-          i=i.gsub(/^([123]|:?[ABCD])~\? /,'% [conditional heading:] \1~ ')    #off conditional heading (consider syntax)
+          i=i.
+            gsub(/^([123]|:?[ABCD])~\? /,
+              '% [conditional heading:] \1~ ')    #off conditional heading (consider syntax)
           if i =~/^@\S+?:/
             i=i.gsub(/\n/m,"\n%  ").
               gsub(/\n%\s+$/m,'').
@@ -161,27 +165,36 @@ module SiSU_Assemble
       end
       file
     end
-    def insertions?
-      data=@fns_array
+    def insertions?(fns_array)
       tuned_file,imagedir=[],[]
-      SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'Composite Document',"[#{@opt.f_pth[:lng_is]}] #{@opt.fno}").grey_title_hi unless @opt.act[:quiet][:set]==:on
-      data.each do |para|
+      SiSU_Screen::Ansi.new(
+        @opt.act[:color_state][:set],
+        'Composite Document',
+        "[#{@opt.f_pth[:lng_is]}] #{@opt.fno}",
+      ).grey_title_hi unless @opt.act[:quiet][:set]==:on
+      fns_array.each do |para|
         if para =~/^<<\s+(\S+?\.ss[it])$/
           loadfile=$1.strip
-          src_ssm=@opt.fns.sub(/\.ssm\.sst/,'.ssm')
           if (@opt.act[:verbose][:set]==:on \
           || @opt.act[:verbose_plus][:set]==:on \
           || @opt.act[:maintenance][:set]==:on)
-            SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'loading:',loadfile).txt_grey
+            SiSU_Screen::Ansi.new(
+              @opt.act[:color_state][:set],
+              'loading:',
+              loadfile,
+            ).txt_grey
           end
-          tuned_file << if loadfile =~ /(?:https?|file):\/\/\S+?\.ss[ti]$/ # and NetTest
-            imagedir = /((?:https?|file):\/\/\S+?)\/[^\/]+?\.ss[ti]$/.match(loadfile).captures.join + '/_sisu/image' #watch
+          tuned_file << if loadfile =~ /(?:https?|file):\/\/\S+?\.ss[it]$/ # and NetTest
+            imagedir = /((?:https?|file):\/\/\S+?)\/[^\/]+?\.ss[it]$/.
+              match(loadfile).captures.join +
+              '/_sisu/image' #watch
             begin
               require 'uri'
               require 'open-uri'
               require 'pp'
             rescue LoadError
-              SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).error('uri, open-uri or pp NOT FOUND (LoadError)')
+              SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).
+                error('uri, open-uri or pp NOT FOUND (LoadError)')
             end
             image_uri=URI.parse(imagedir)
             insert=open(loadfile)
@@ -191,13 +204,12 @@ module SiSU_Assemble
             @@imager[image_uri] ||=[]
             @@imager[image_uri] << file[:images]
             file[:prepared]
-          elsif loadfile =~ /\.ss[ti]$/ \
+          elsif loadfile =~ /\.ss[it]$/ \
           and FileTest.file?(loadfile)
             insert_array=IO.readlines(loadfile,'')
             file=insertion(loadfile,insert_array)
             file[:prepared]
           else
-            cX=SiSU_Screen::Ansi.new(@opt.act[:color_state][:set]).cX
             STDERR.puts %{SKIPPED processing file: [#{@opt.lng}] "#{@opt.fns}" it requires an invalid or non-existent file: "#{loadfile}"}
             $process_document = :skip; break #remove this line to continue processing documents that have missing include files
             para
@@ -225,8 +237,8 @@ module SiSU_Assemble
     def read
       begin
         @opt.fns=@opt.fns.gsub(/\.ssm\.sst$/,'.ssm') #FIX earlier, hub
-        @fns_array=IO.readlines(@opt.fns,'')
-        insertions?
+        fns_array=IO.readlines(@opt.fns,'')
+        insertions?(fns_array)
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -234,26 +246,32 @@ module SiSU_Assemble
       ensure
       end
     end
-    def insertions?
-      data=@fns_array
+    def insertions?(fns_array)
       tuned_file=[]
-      SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'Composite Document',@opt.fno).grey_title_hi unless @opt.act[:quiet][:set]==:on
+      SiSU_Screen::Ansi.new(
+        @opt.act[:color_state][:set],
+        'Composite Document',
+        @opt.fno
+      ).grey_title_hi unless @opt.act[:quiet][:set]==:on
       @ssm=[@opt.fns]
-      data.each do |para|
+      fns_array.each do |para|
         if para =~/^<<\s+(\S+?\.ss[it])$/
           loadfile=$1.strip
           if (@opt.act[:verbose][:set]==:on \
           || @opt.act[:verbose_plus][:set]==:on \
           || @opt.act[:maintenance][:set]==:on)
-            SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'loading:',loadfile).txt_grey
+            SiSU_Screen::Ansi.new(
+              @opt.act[:color_state][:set],
+              'loading:',
+              loadfile,
+            ).txt_grey
           end
-          tuned_file << if loadfile =~ /(?:https?|file):\/\/\S+?\.ss[ti]$/
+          tuned_file << if loadfile =~ /(?:https?|file):\/\/\S+?\.ss[it]$/
             @ssm << loadfile
-          elsif loadfile =~ /\.ss[ti]$/ \
+          elsif loadfile =~ /\.ss[it]$/ \
           and FileTest.file?(loadfile)
             @ssm << loadfile
           else
-            cX=SiSU_Screen::Ansi.new(@opt.act[:color_state][:set]).cX
             STDERR.puts %{SKIPPED processing file: [#{@opt.lng}] "#{@opt.fns}" it requires an invalid or non-existent file: "#{loadfile}"}
             $process_document = :skip; break #remove this line to continue processing documents that have missing include files
             para
diff --git a/lib/sisu/v5/ao_doc_objects.rb b/lib/sisu/v5/ao_doc_objects.rb
index c53c60d6..b372da4c 100644
--- a/lib/sisu/v5/ao_doc_objects.rb
+++ b/lib/sisu/v5/ao_doc_objects.rb
@@ -74,10 +74,10 @@ module SiSU_AO_DocumentStructure
       @of=:meta
     end
     def metadata(tags)
-      of=     @of                                                              #Symbol, classification - group
-      is=     :meta                                                            #Symbol, classification - specific type
-      tags=   tags        || ((defined? o.tags)      ? o.tags    : {})         #String, metadata type/tag
-      obj=     nil
+      of      = @of                                                                 #Symbol, classification - group
+      is      = :meta                                                               #Symbol, classification - specific type
+      tags    = tags            || ((defined? o.tags)      ? o.tags        : {})    #String, metadata type/tag
+      obj     = nil
       @of,@is,@tags,@obj=of,is,tags,obj
       self
     end
@@ -89,12 +89,12 @@ module SiSU_AO_DocumentStructure
       @of=:meta
     end
     def metadata(h,o=nil)
-      of=     @of                                                              #Symbol, classification - group
-      is=     :meta                                                            #Symbol, classification - specific type
-      tag=    h[:tag]     || ((defined? o.tag)       ? o.tag     : nil)        #String, metadata type/tag
-      obj=    h[:obj]     || ((defined? o.obj)       ? o.obj     : nil)        #String, text content
-      tmp=    h[:tmp]     || ((defined? o.tmp)       ? o.tmp     : nil)        #available for processing, empty after use
-      digest= h[:digest]  || ((defined? o.digest)    ? o.digest  : nil)        #hash digests, sha512, sha256 or md5
+      of      = @of                                                                 #Symbol, classification - group
+      is      = :meta                                                               #Symbol, classification - specific type
+      tag     = h[:tag]         || ((defined? o.tag)       ? o.tag         : nil)   #String, metadata type/tag
+      obj     = h[:obj]         || ((defined? o.obj)       ? o.obj         : nil)   #String, text content
+      tmp     = h[:tmp]         || ((defined? o.tmp)       ? o.tmp         : nil)   #available for processing, empty after use
+      digest  = h[:digest]      || ((defined? o.digest)    ? o.digest      : nil)   #hash digests, sha512, sha256 or md5
       @of,@is,@tag,@obj,@digest,@tmp=of,is,tag,obj,digest,tmp
       self
     end
@@ -142,208 +142,249 @@ module SiSU_AO_DocumentStructure
       and (h[:ln] and h[:ln].to_s=~/[0-9]/)
         h[:lv]=heading_lv(h[:ln])
       end
-      of=     @of                                                              #Symbol, classification - group
-      is=     :heading                                                         #Symbol, classification - specific type
-      name=   h[:name]    || ((defined? o.name)      ? o.name    : nil)        #String, named object?
-      tags=   h[:tags]    || ((defined? o.tags)      ? o.tags    : [])         #Array, associated object tags, names if any
-      obj=    h[:obj]     || ((defined? o.obj)       ? o.obj     : nil)        #String, text content
-      idx=    h[:idx]     || ((defined? o.idx)       ? o.idx     : nil)        #String, book index provided?
-      ocn=    h[:ocn]     || ((defined? o.ocn)       ? o.ocn     : nil)        #Integer, sequential on substantive-content objects
-      odv=    h[:odv]     || ((defined? o.odv)       ? o.odv     : nil)
-      osp=    h[:osp]     || ((defined? o.osp)       ? o.osp     : nil)
-      node=   h[:node]    || ((defined? o.node)      ? o.node    : nil)        #[Node relationship doc structure info]
-      parent= h[:parent]  || ((defined? o.parent)    ? o.parent  : nil)        #[Node parent]
-      lv=     h[:lv]      || ((defined? o.lv)        ? o.lv      : nil)        #Alpha-numeric, document structure as used in markup, A-D then 1-6
-      ln=     h[:ln]      || ((defined? o.ln)        ? o.ln      : nil)        #Integer, document structure level, for convenience in processing 1-9
-      lc=     h[:lc]      || ((defined? o.lc)        ? o.lc      : nil)        #Integer, document structure collapsed level, convenience (collapse sisu's dual level document structure for markup with simple linear structure)
-      use_=if lv \
-      and lv == '1'
-        h[:use_]    || ((defined? o.use_)      ? o.use_    : :ok)
-      elsif not lv.empty? \
-      and lv =~ /[A-D2-3]/
-        :ok
-      else
-         h[:use_]    || ((defined? o.use_)      ? o.use_    : :ok)
-      end
-      ocn_=if h[:ocn_].nil? then ((defined? o.ocn_)  ? o.ocn_    : true)       #Bool? no ocn, non-substantive content, do not include in toc #consider
-      else  h[:ocn_]
-      end
-      autonum_= if h[:autonum_].nil? then ((defined? o.autonum_) ? o.autonum_ : true) #Bool? auto-numbering if requested default on, false suppresses
-      else  h[:autonum_]
-      end
-      note_=  h[:note_]   || ((defined? o.note_)     ? o.note_   : false)      #Bool, endnotes/footnotes? (processing optimization)
-      digest= h[:digest]  || ((defined? o.digest)    ? o.digest  : nil)        #hash digests, sha512, sha256 or md5
-      tmp=    h[:tmp]     || ((defined? o.tmp)       ? o.tmp     : nil)        #available for processing, empty after use
-      @of,@is,@lv,@ln,@lc,@name,@tags,@obj,@idx,@ocn,@odv,@osp,@node,@parent,@use_,@ocn_,@note_,@autonum_,@digest,@tmp=of,is,lv,ln,lc,name,tags,obj,idx,ocn,odv,osp,node,parent,use_,ocn_,note_,autonum_,digest,tmp
+      of      = @of                                                                 #Symbol, classification - group
+      is      = :heading                                                            #Symbol, classification - specific type
+      name    = h[:name]        || ((defined? o.name)      ? o.name        : nil)   #String, named object?
+      tags    = h[:tags]        || ((defined? o.tags)      ? o.tags        : [])    #Array, associated object tags, names if any
+      obj     = h[:obj]         || ((defined? o.obj)       ? o.obj         : nil)   #String, text content
+      idx     = h[:idx]         || ((defined? o.idx)       ? o.idx         : nil)   #String, book index provided?
+      ocn     = h[:ocn]         || ((defined? o.ocn)       ? o.ocn         : nil)   #Integer, sequential on substantive-content objects
+      odv     = h[:odv]         || ((defined? o.odv)       ? o.odv         : nil)
+      osp     = h[:osp]         || ((defined? o.osp)       ? o.osp         : nil)
+      node    = h[:node]        || ((defined? o.node)      ? o.node        : nil)   #[Node relationship doc structure info]
+      parent  = h[:parent]      || ((defined? o.parent)    ? o.parent      : nil)   #[Node parent]
+      lv      = h[:lv]          || ((defined? o.lv)        ? o.lv          : nil)   #Alpha-numeric, document structure as used in markup, A-D then 1-6
+      ln      = h[:ln]          || ((defined? o.ln)        ? o.ln          : nil)   #Integer, document structure level, for convenience in processing 1-9
+      lc      = h[:lc]          || ((defined? o.lc)        ? o.lc          : nil)   #Integer, document structure collapsed level, convenience (collapse sisu's dual level document structure for markup with simple linear structure)
+      use_    = if lv \
+        and lv == '1'
+          h[:use_]              || ((defined? o.use_)      ? o.use_        : :ok)
+        elsif not lv.empty? \
+        and lv =~ /[A-D2-3]/
+          :ok
+        else
+           h[:use_]             || ((defined? o.use_)      ? o.use_        : :ok)
+        end
+      ocn_    = if h[:ocn_].nil?
+                                   ((defined? o.ocn_)      ? o.ocn_        : true)  #Bool? no ocn, non-substantive content, do not include in toc #consider
+        else                       h[:ocn_]
+        end
+      autonum_ = if h[:autonum_].nil?
+                                   ((defined? o.autonum_)  ? o.autonum_    : true)  #Bool? auto-numbering if requested default on, false suppresses
+        else                       h[:autonum_]
+        end
+      note_   = h[:note_]       || ((defined? o.note_)     ? o.note_       : false) #Bool, endnotes/footnotes? (processing optimization)
+      digest  = h[:digest]      || ((defined? o.digest)    ? o.digest      : nil)   #hash digests, sha512, sha256 or md5
+      tmp     = h[:tmp]         || ((defined? o.tmp)       ? o.tmp         : nil)   #available for processing, empty after use
+      @of,@is,@lv,@ln,@lc,@name,@tags,@obj,@idx,@ocn,@odv,@osp,@node,@parent,@use_,@ocn_,@note_,@autonum_,@digest,@tmp=
+      of, is, lv, ln, lc, name, tags, obj, idx, ocn, odv, osp, node, parent, use_, ocn_, note_, autonum_, digest, tmp
       self
     end
     def heading_insert(h,o=nil)
       heading(h,o=nil)
-      @is=     :heading_insert                                                 #String, classification - specific type
+      @is     = :heading_insert                                                     #String, classification - specific type
       self
     end
   end
   class ObjectPara
-    attr_accessor :obj,:is,:tags,:of,:name,:idx,:bullet_,:indent,:hang,:ocn,:odv,:osp,:parent,:note_,:image_,:ocn_,:digest,:tmp
+    attr_accessor :obj,:is,:tags,:of,:name,:idx,:quote_,:bullet_,:indent,:hang,:ocn,:odv,:osp,:parent,:note_,:image_,:ocn_,:digest,:tmp
     def initialize
       @of=:para
-      @is=@obj=@name=@idx=@bullet_=@indent=@hang=@size=@ocn=@odv=@osp=@parent=@note_=@image_=@ocn_=@digest=@tmp=nil
+      @is=@obj=@name=@idx=@quote_=@bullet_=@indent=@hang=@size=@ocn=@odv=@osp=@parent=@note_=@image_=@ocn_=@digest=@tmp=nil
       @tags=[]
     end
     def paragraph(h,o=nil)
-      of=    @of                                                               #Symbol, classification - group
-      is=    :para                                                             #Symbol, classification - specific type
-      name=   h[:name]    || ((defined? o.name)      ? o.name    : nil)        #String, named object?
-      tags=   h[:tags]    || ((defined? o.tags)      ? o.tags    : [])         #Array, associated object tags, names if any
-      obj=    h[:obj]     || ((defined? o.obj)       ? o.obj     : nil)        #String, text content
-      idx=    h[:idx]     || ((defined? o.idx)       ? o.idx     : nil)        #String, book index provided?
-      ocn=    h[:ocn]     || ((defined? o.ocn)       ? o.ocn     : nil)        #Integer, sequential on substantive-content objects
-      odv=    h[:odv]     || ((defined? o.odv)       ? o.odv     : nil)
-      osp=    h[:osp]     || ((defined? o.osp)       ? o.osp     : nil)
-      parent= h[:parent]  || ((defined? o.parent)    ? o.parent  : nil)        #[Node parent]
-      indent= h[:indent].to_s || ((defined? o.indent) ? o.indent.to_s : nil)   #Integer, indent level
-      hang=   h[:hang].to_s || ((defined? o.hang)    ? o.hang.to_s : nil)      #Integer, hanging indent level
-      bullet_=h[:bullet_] || ((defined? o.bullet_)   ? o.bullet_ : false)      #Bool, bulleted?
-      note_=  h[:note_]   || ((defined? o.note_)     ? o.note_   : false)      #Bool, endnotes/footnotes? (processing optimization)
-      image_= h[:image_]  || ((defined? o.image_)    ? o.image_  : false)      #Bool, images? (processing optimization)
-      ocn_=if h[:ocn_].nil? then ((defined? o.ocn_)  ? o.ocn_    : true)       #Bool? no ocn, non-substantive content, do not include in toc #consider
-      else  h[:ocn_]
+      of      = @of                                                                 #Symbol, classification - group
+      is      = :para                                                               #Symbol, classification - specific type
+      name    = h[:name]        || ((defined? o.name)      ? o.name        : nil)   #String, named object?
+      tags    = h[:tags]        || ((defined? o.tags)      ? o.tags        : [])    #Array, associated object tags, names if any
+      obj     = h[:obj]         || ((defined? o.obj)       ? o.obj         : nil)   #String, text content
+      idx     = h[:idx]         || ((defined? o.idx)       ? o.idx         : nil)   #String, book index provided?
+      ocn     = h[:ocn]         || ((defined? o.ocn)       ? o.ocn         : nil)   #Integer, sequential on substantive-content objects
+      odv     = h[:odv]         || ((defined? o.odv)       ? o.odv         : nil)
+      osp     = h[:osp]         || ((defined? o.osp)       ? o.osp         : nil)
+      parent  = h[:parent]      || ((defined? o.parent)    ? o.parent      : nil)   #[Node parent]
+      indent  = h[:indent].to_s || ((defined? o.indent)    ? o.indent.to_s : nil)   #Integer, indent level
+      hang    = h[:hang].to_s   || ((defined? o.hang)      ? o.hang.to_s   : nil)   #Integer, hanging indent level
+      bullet_ = h[:bullet_]     || ((defined? o.bullet_)   ? o.bullet_     : false) #Bool, bulleted?
+      quote_  = h[:quote_]      || ((defined? o.quote_)    ? o.quote_      : false) #Bool, quote (blockquote)?
+      note_   = h[:note_]       || ((defined? o.note_)     ? o.note_       : false) #Bool, endnotes/footnotes? (processing optimization)
+      image_  = h[:image_]      || ((defined? o.image_)    ? o.image_      : false) #Bool, images? (processing optimization)
+      ocn_    = if h[:ocn_].nil?
+                                   ((defined? o.ocn_)      ? o.ocn_        : true)  #Bool? no ocn, non-substantive content, do not include in toc #consider
+      else         h[:ocn_]
       end
-      digest= h[:digest]  || ((defined? o.digest)    ? o.digest  : nil)        #hash digests, sha512, sha256 or md5
-      tmp=    h[:tmp]     || ((defined? o.tmp)       ? o.tmp     : nil)        #available for processing, empty after use
-      @of,@is,@name,@tags,@obj,@indent,@hang,@bullet_,@idx,@ocn,@odv,@osp,@parent,@image_,@note_,@ocn_,@digest,@tmp=of,is,name,tags,obj,indent,hang,bullet_,idx,ocn,odv,osp,parent,image_,note_,ocn_,digest,tmp
+      digest  = h[:digest]      || ((defined? o.digest)    ? o.digest      : nil)   #hash digests, sha512, sha256 or md5
+      tmp     = h[:tmp]         || ((defined? o.tmp)       ? o.tmp         : nil)   #available for processing, empty after use
+      @of,@is,@name,@tags,@obj,@indent,@hang,@bullet_,@quote_,@idx,@ocn,@odv,@osp,@parent,@image_,@note_,@ocn_,@digest,@tmp=
+      of, is, name, tags, obj, indent, hang, bullet_, quote_, idx, ocn, odv, osp, parent, image_, note_, ocn_, digest, tmp
       self
     end
     def docinfo(h,o=nil)
-      of=    @of                                                               #String, classification - group
-      is=    :docinfo                                                          #String, classification - specific type
-      name=   h[:name]    || ((defined? o.name)      ? o.name    : nil)        #String, named object?
-      tags=   h[:tags]    || ((defined? o.tags)      ? o.tags    : nil)        #Array, associated object tags, names if any
-      obj=    h[:obj]     || ((defined? o.obj)       ? o.obj     : nil)        #String, text content
-      idx=    nil                                                              #String, book index provided?
-      ocn=    nil                                                              #Integer, sequential on substantive-content objects
-      odv=    h[:odv]     || ((defined? o.odv)       ? o.odv     : nil)
-      osp=    h[:osp]     || ((defined? o.osp)       ? o.osp     : nil)
-      parent= h[:parent]  || ((defined? o.parent)    ? o.parent  : nil)        #[Node parent]
-      indent= nil                                                              #Integer, indent level
-      hang= nil                                                                #Integer, indent level
-      bullet_=false                                                            #Bool, bulleted?
-      note_=  false                                                            #Bool, endnotes/footnotes? (processing optimization)
-      image_= h[:image_]  || ((defined? o.image_)    ? o.image_  : false)      #Bool, images? (processing optimization)
-      ocn_=if h[:ocn_].nil? then ((defined? o.ocn_)  ? o.ocn_    : true)       #Bool? no ocn, non-substantive content, do not include in toc #consider
-      else  h[:ocn_]
+      of      = @of                                                                 #String, classification - group
+      is      = :docinfo                                                            #String, classification - specific type
+      name    = h[:name]        || ((defined? o.name)      ? o.name        : nil)   #String, named object?
+      tags    = h[:tags]        || ((defined? o.tags)      ? o.tags        : nil)   #Array, associated object tags, names if any
+      obj     = h[:obj]         || ((defined? o.obj)       ? o.obj         : nil)   #String, text content
+      idx     = nil                                                                 #String, book index provided?
+      ocn     = nil                                                                 #Integer, sequential on substantive-content objects
+      odv     = h[:odv]         || ((defined? o.odv)       ? o.odv         : nil)
+      osp     = h[:osp]         || ((defined? o.osp)       ? o.osp         : nil)
+      parent  = h[:parent]      || ((defined? o.parent)    ? o.parent      : nil)   #[Node parent]
+      indent  = nil                                                                 #Integer, indent level
+      hang    = nil                                                                 #Integer, indent level
+      bullet_ = false                                                               #Bool, bulleted?
+      note_   = false                                                               #Bool, endnotes/footnotes? (processing optimization)
+      image_  = h[:image_]      || ((defined? o.image_)    ? o.image_      : false) #Bool, images? (processing optimization)
+      ocn_    = if h[:ocn_].nil?
+                                   ((defined? o.ocn_)      ? o.ocn_        : true)  #Bool? no ocn, non-substantive content, do not include in toc #consider
+      else                         h[:ocn_]
       end
-      digest= h[:digest]  || ((defined? o.digest)    ? o.digest  : nil)        #hash digests, sha512, sha256 or md5
-      tmp=    h[:tmp]     || ((defined? o.tmp)       ? o.tmp     : nil)        #available for processing, empty after use
-      @of,@is,@name,@tags,@obj,@indent,@hang,@bullet_,@idx,@ocn,@odv,@osp,@parent,@image_,@note_,@ocn_,@digest,@tmp=of,is,name,tags,obj,indent,hang,bullet_,idx,ocn,odv,osp,parent,image_,note_,ocn_,digest,tmp
+      digest  = h[:digest]      || ((defined? o.digest)    ? o.digest      : nil)   #hash digests, sha512, sha256 or md5
+      tmp     = h[:tmp]         || ((defined? o.tmp)       ? o.tmp         : nil)   #available for processing, empty after use
+      @of,@is,@name,@tags,@obj,@indent,@hang,@bullet_,@idx,@ocn,@odv,@osp,@parent,@image_,@note_,@ocn_,@digest,@tmp=
+      of, is, name, tags, obj, indent, hang, bullet_, idx, ocn, odv, osp, parent, image_, note_, ocn_, digest, tmp
       self
     end
   end
   class ObjectBlockTxt
-    attr_accessor :obj,:is,:of,:tags,:idx,:ocn,:odv,:osp,:parent,:note_,:number_,:ocn_,:digest,:tmp
+    attr_accessor :obj,:is,:of,:tags,:lngsyn,:idx,:ocn,:odv,:osp,:parent,:note_,:number_,:ocn_,:digest,:tmp
     def initialize
       @of=:block
-      @is=@obj=@idx=@ocn=@odv=@osp=@parent=@note_=@number_=@ocn_=@digest=@tmp=nil
+      @is=@obj=@lngsyn=@idx=@ocn=@odv=@osp=@parent=@note_=@number_=@ocn_=@digest=@tmp=nil
       @tags=[]
     end
     def code(h,o=nil)
-      of=      @of                                                             #Symbol, classification - group #alt 'code'
-      is=      :code                                                           #Symbol, classification - specific type
-      tags=    h[:tags]    || ((defined? o.tags)     ? o.tags    : [])         #Array, associated object tags, names if any
-      obj=     h[:obj]     || ((defined? o.obj)      ? o.obj     : nil)        #String, text content
-      idx=     h[:idx]     || ((defined? o.idx)      ? o.idx     : nil)        #String, book index provided?
-      ocn=     h[:ocn]     || ((defined? o.ocn)      ? o.ocn     : nil)        #Integer, sequential on substantive-content objects
-      odv=     h[:odv]     || ((defined? o.odv)      ? o.odv     : nil)
-      osp=     h[:osp]     || ((defined? o.osp)      ? o.osp     : nil)
-      parent=  h[:parent]  || ((defined? o.parent)   ? o.parent  : nil)        #[Node parent]
-      number_= h[:number_] || ((defined? o.number_)  ? o.number_ : false)      #Bool, numbered or not?
-      note_=   h[:note_]   || ((defined? o.note_)    ? o.note_   : false)      #Bool, endnotes/footnotes? (processing optimization)
-      ocn_= if h[:ocn_].nil? then ((defined? o.ocn_) ? o.ocn_    : true)       #Bool? no ocn, non-substantive content, do not include in toc #consider
-      else     h[:ocn_]
+      of       = @of                                                                #Symbol, classification - group #alt 'code'
+      is       = :code                                                              #Symbol, classification - specific type
+      tags     = h[:tags]       || ((defined? o.tags)      ? o.tags        : [])    #Array, associated object tags, names if any
+      obj      = h[:obj]        || ((defined? o.obj)       ? o.obj         : nil)   #String, text content
+      lngsyn   = h[:lngsyn]     || ((defined? o.lngsyn)    ? o.lngsyn      : :txt)  #symbol, code lngsyn
+      idx      = h[:idx]        || ((defined? o.idx)       ? o.idx         : nil)   #String, book index provided?
+      ocn      = h[:ocn]        || ((defined? o.ocn)       ? o.ocn         : nil)   #Integer, sequential on substantive-content objects
+      odv      = h[:odv]        || ((defined? o.odv)       ? o.odv         : nil)
+      osp      = h[:osp]        || ((defined? o.osp)       ? o.osp         : nil)
+      parent   = h[:parent]     || ((defined? o.parent)    ? o.parent      : nil)   #[Node parent]
+      number_  = h[:number_]    || ((defined? o.number_)   ? o.number_     : false) #Bool, numbered or not?
+      note_    = h[:note_]      || ((defined? o.note_)     ? o.note_       : false) #Bool, endnotes/footnotes? (processing optimization)
+      ocn_     = if h[:ocn_].nil?
+                                   ((defined? o.ocn_)      ? o.ocn_        : true)  #Bool? no ocn, non-substantive content, do not include in toc #consider
+      else                         h[:ocn_]
+      end
+      num      = h[:num]        || ((defined? o.num)       ? o.num         : nil)
+      digest   = h[:digest]     || ((defined? o.digest)    ? o.digest      : nil)   #hash digests, sha512, sha256 or md5
+      tmp      = h[:tmp]        || ((defined? o.tmp)       ? o.tmp         : nil)   #available for processing, empty after use
+      @of,@is,@tags,@obj,@lngsyn,@idx,@ocn,@odv,@osp,@parent,@number_,@note_,@ocn_,@num,@digest,@tmp=
+      of, is, tags, obj, lngsyn, idx, ocn, odv, osp, parent, number_, note_, ocn_, num, digest, tmp
+      self
+    end
+    def box(h,o=nil)
+      of       = @of                                                                #Symbol, classification - group
+      is       = :box                                                               #Symbol, classification - specific type
+      tags     = h[:tags]       || ((defined? o.tags)      ? o.tags        : [])    #Array, associated object tags, names if any
+      obj      = h[:obj]        || ((defined? o.obj)       ? o.obj         : nil)   #String, text content
+      idx      = h[:idx]        || ((defined? o.idx)       ? o.idx         : nil)   #String, book index provided?
+      ocn      = h[:ocn]        || ((defined? o.ocn)       ? o.ocn         : nil)   #Integer, sequential on substantive-content objects
+      odv      = h[:odv]        || ((defined? o.odv)       ? o.odv         : nil)
+      osp      = h[:osp]        || ((defined? o.osp)       ? o.osp         : nil)
+      parent   = h[:parent]     || ((defined? o.parent)    ? o.parent      : nil)   #[Node parent]
+      note_    = h[:note_]      || ((defined? o.note_)     ? o.note_       : false) #Bool, endnotes/footnotes? (processing optimization)
+      ocn_     = if h[:ocn_].nil?
+                                   ((defined? o.ocn_)      ? o.ocn_        : true)  #Bool? no ocn, non-substantive content, do not include in toc #consider
+      else                         h[:ocn_]
       end
-      num=     h[:num]     || ((defined? o.num)      ? o.num     : nil)
-      digest=  h[:digest]  || ((defined? o.digest)   ? o.digest  : nil)        #hash digests, sha512, sha256 or md5
-      tmp=     h[:tmp]     || ((defined? o.tmp)      ? o.tmp     : nil)        #available for processing, empty after use
-      @of,@is,@tags,@obj,@idx,@ocn,@odv,@osp,@parent,@number_,@note_,@ocn_,@num,@digest,@tmp=of,is,tags,obj,idx,ocn,odv,osp,parent,number_,note_,ocn_,num,digest,tmp
+      num      = h[:num]        || ((defined? o.num)       ? o.num         : nil)
+      digest   = h[:digest]     || ((defined? o.digest)    ? o.digest      : nil)   #hash digests, sha512, sha256 or md5
+      tmp      = h[:tmp]        || ((defined? o.tmp)       ? o.tmp         : nil)   #available for processing, empty after use
+      @of,@is,@tags,@obj,@idx,@ocn,@odv,@osp,@parent,@note_,@ocn_,@num,@digest,@tmp=
+      of, is, tags, obj, idx, ocn, odv, osp, parent, note_, ocn_, num, digest, tmp
       self
     end
     def block(h,o=nil)
-      of=      @of                                                             #Symbol, classification - group
-      is=      :block                                                          #Symbol, classification - specific type
-      tags=    h[:tags]    || ((defined? o.tags)     ? o.tags    : [])         #Array, associated object tags, names if any
-      obj=     h[:obj]     || ((defined? o.obj)      ? o.obj     : nil)        #String, text content
-      idx=     h[:idx]     || ((defined? o.idx)      ? o.idx     : nil)        #String, book index provided?
-      ocn=     h[:ocn]     || ((defined? o.ocn)      ? o.ocn     : nil)        #Integer, sequential on substantive-content objects
-      odv=     h[:odv]     || ((defined? o.odv)      ? o.odv     : nil)
-      osp=     h[:osp]     || ((defined? o.osp)      ? o.osp     : nil)
-      parent=  h[:parent]  || ((defined? o.parent)   ? o.parent  : nil)        #[Node parent]
-      note_=   h[:note_]   || ((defined? o.note_)    ? o.note_   : false)      #Bool, endnotes/footnotes? (processing optimization)
-      ocn_= if h[:ocn_].nil? then ((defined? o.ocn_) ? o.ocn_    : true)       #Bool? no ocn, non-substantive content, do not include in toc #consider
-      else     h[:ocn_]
+      of       = @of                                                                #Symbol, classification - group
+      is       = :block                                                             #Symbol, classification - specific type
+      tags     = h[:tags]       || ((defined? o.tags)      ? o.tags        : [])    #Array, associated object tags, names if any
+      obj      = h[:obj]        || ((defined? o.obj)       ? o.obj         : nil)   #String, text content
+      idx      = h[:idx]        || ((defined? o.idx)       ? o.idx         : nil)   #String, book index provided?
+      ocn      = h[:ocn]        || ((defined? o.ocn)       ? o.ocn         : nil)   #Integer, sequential on substantive-content objects
+      odv      = h[:odv]        || ((defined? o.odv)       ? o.odv         : nil)
+      osp      = h[:osp]        || ((defined? o.osp)       ? o.osp         : nil)
+      parent   = h[:parent]     || ((defined? o.parent)    ? o.parent      : nil)   #[Node parent]
+      note_    = h[:note_]      || ((defined? o.note_)     ? o.note_       : false) #Bool, endnotes/footnotes? (processing optimization)
+      ocn_     = if h[:ocn_].nil?
+                                   ((defined? o.ocn_)      ? o.ocn_        : true)  #Bool? no ocn, non-substantive content, do not include in toc #consider
+      else                         h[:ocn_]
       end
-      num=     h[:num]     || ((defined? o.num)      ? o.num     : nil)
-      digest=  h[:digest]  || ((defined? o.digest)   ? o.digest  : nil)        #hash digests, sha512, sha256 or md5
-      tmp=     h[:tmp]     || ((defined? o.tmp)      ? o.tmp     : nil)        #available for processing, empty after use
-      @of,@is,@tags,@obj,@idx,@ocn,@odv,@osp,@parent,@note_,@ocn_,@num,@digest,@tmp=of,is,tags,obj,idx,ocn,odv,osp,parent,note_,ocn_,num,digest,tmp
+      num      = h[:num]        || ((defined? o.num)       ? o.num         : nil)
+      digest   = h[:digest]     || ((defined? o.digest)    ? o.digest      : nil)   #hash digests, sha512, sha256 or md5
+      tmp      = h[:tmp]        || ((defined? o.tmp)       ? o.tmp         : nil)   #available for processing, empty after use
+      @of,@is,@tags,@obj,@idx,@ocn,@odv,@osp,@parent,@note_,@ocn_,@num,@digest,@tmp=
+      of, is, tags, obj, idx, ocn, odv, osp, parent, note_, ocn_, num, digest, tmp
       self
     end
     def group(h,o=nil)
-      of=      @of                                                             #Symbol, classification - group
-      is=      :group                                                          #Symbol, classification - specific type
-      tags=    h[:tags]    || ((defined? o.tags)     ? o.tags    : [])         #Array, associated object tags, names if any
-      obj=     h[:obj]     || ((defined? o.obj)      ? o.obj     : nil)        #String, text content
-      idx=     h[:idx]     || ((defined? o.idx)      ? o.idx     : nil)        #String, book index provided?
-      ocn=     h[:ocn]     || ((defined? o.ocn)      ? o.ocn     : nil)        #Integer, sequential on substantive-content objects
-      odv=     h[:odv]     || ((defined? o.odv)      ? o.odv     : nil)
-      osp=     h[:osp]     || ((defined? o.osp)      ? o.osp     : nil)
-      parent=  h[:parent]  || ((defined? o.parent)   ? o.parent  : nil)        #[Node parent]
-      note_=   h[:note_]   || ((defined? o.note_)    ? o.note_   : false)      #Bool, endnotes/footnotes? (processing optimization)
-      ocn_= if h[:ocn_].nil? then ((defined? o.ocn_) ? o.ocn_    : true)       #Bool? no ocn, non-substantive content, do not include in toc #consider
-      else     h[:ocn_]
+      of       = @of                                                                #Symbol, classification - group
+      is       = :group                                                             #Symbol, classification - specific type
+      tags     = h[:tags]       || ((defined? o.tags)      ? o.tags        : [])    #Array, associated object tags, names if any
+      obj      = h[:obj]        || ((defined? o.obj)       ? o.obj         : nil)   #String, text content
+      idx      = h[:idx]        || ((defined? o.idx)       ? o.idx         : nil)   #String, book index provided?
+      ocn      = h[:ocn]        || ((defined? o.ocn)       ? o.ocn         : nil)   #Integer, sequential on substantive-content objects
+      odv      = h[:odv]        || ((defined? o.odv)       ? o.odv         : nil)
+      osp      = h[:osp]        || ((defined? o.osp)       ? o.osp         : nil)
+      parent   = h[:parent]     || ((defined? o.parent)    ? o.parent      : nil)   #[Node parent]
+      note_    = h[:note_]      || ((defined? o.note_)     ? o.note_       : false) #Bool, endnotes/footnotes? (processing optimization)
+      ocn_     = if h[:ocn_].nil?
+                                   ((defined? o.ocn_)      ? o.ocn_        : true)  #Bool? no ocn, non-substantive content, do not include in toc #consider
+      else          h[:ocn_]
       end
-      num=     h[:num]     || ((defined? o.num)      ? o.num     : nil)
-      digest=  h[:digest]  || ((defined? o.digest)   ? o.digest  : nil)        #hash digests, sha512, sha256 or md5
-      tmp=     h[:tmp]     || ((defined? o.tmp)      ? o.tmp     : nil)        #available for processing, empty after use
-      @of,@is,@tags,@obj,@idx,@ocn,@odv,@osp,@parent,@note_,@ocn_,@num,@digest,@tmp=of,is,tags,obj,idx,ocn,odv,osp,parent,note_,ocn_,num,digest,tmp
+      num      = h[:num]        || ((defined? o.num)       ? o.num         : nil)
+      digest   = h[:digest]     || ((defined? o.digest)    ? o.digest      : nil)   #hash digests, sha512, sha256 or md5
+      tmp      = h[:tmp]        || ((defined? o.tmp)       ? o.tmp         : nil)   #available for processing, empty after use
+      @of,@is,@tags,@obj,@idx,@ocn,@odv,@osp,@parent,@note_,@ocn_,@num,@digest,@tmp=
+      of, is, tags, obj, idx, ocn, odv, osp, parent, note_, ocn_, num, digest, tmp
       self
     end
-    def alt(h,o=nil)                                                           #see block
-      of=      @of                                                             #Symbol, classification - group
-      is=      :alt                                                            #Symbol, classification - specific type
-      tags=    h[:tags]    || ((defined? o.tags)     ? o.tags    : [])         #Array, associated object tags, names if any
-      obj=     h[:obj]     || ((defined? o.obj)      ? o.obj     : nil)        #String, text content
-      idx=     h[:idx]     || ((defined? o.idx)      ? o.idx     : nil)        #String, book index provided?
-      ocn=     h[:ocn]     || ((defined? o.ocn)      ? o.ocn     : nil)        #Integer, sequential on substantive-content objects
-      odv=     h[:odv]     || ((defined? o.odv)      ? o.odv     : nil)
-      osp=     h[:osp]     || ((defined? o.osp)      ? o.osp     : nil)
-      parent=  h[:parent]  || ((defined? o.parent)   ? o.parent  : nil)        #[Node parent]
-      note_=   h[:note_]   || ((defined? o.note_)    ? o.note_   : false)      #Bool, endnotes/footnotes? (processing optimization)
-      ocn_= if h[:ocn_].nil? then ((defined? o.ocn_) ? o.ocn_    : true)       #Bool? no ocn, non-substantive content, do not include in toc #consider
-      else     h[:ocn_]
+    def alt(h,o=nil)                                                                #see block
+      of       = @of                                                                #Symbol, classification - group
+      is       = :alt                                                               #Symbol, classification - specific type
+      tags     = h[:tags]       || ((defined? o.tags)      ? o.tags        : [])    #Array, associated object tags, names if any
+      obj      = h[:obj]        || ((defined? o.obj)       ? o.obj         : nil)   #String, text content
+      idx      = h[:idx]        || ((defined? o.idx)       ? o.idx         : nil)   #String, book index provided?
+      ocn      = h[:ocn]        || ((defined? o.ocn)       ? o.ocn         : nil)   #Integer, sequential on substantive-content objects
+      odv      = h[:odv]        || ((defined? o.odv)       ? o.odv         : nil)
+      osp      = h[:osp]        || ((defined? o.osp)       ? o.osp         : nil)
+      parent   = h[:parent]     || ((defined? o.parent)    ? o.parent      : nil)   #[Node parent]
+      note_    = h[:note_]      || ((defined? o.note_)     ? o.note_       : false) #Bool, endnotes/footnotes? (processing optimization)
+      ocn_     = if h[:ocn_].nil?
+                                   ((defined? o.ocn_)      ? o.ocn_        : true)  #Bool? no ocn, non-substantive content, do not include in toc #consider
+      else                         h[:ocn_]
       end
-      num=     h[:num]     || ((defined? o.num)      ? o.num     : nil)
-      digest=  h[:digest]  || ((defined? o.digest)   ? o.digest  : nil)        #hash digests, sha512, sha256 or md5
-      tmp=     h[:tmp]     || ((defined? o.tmp)      ? o.tmp     : nil)        #available for processing, empty after use
-      @of,@is,@tags,@obj,@idx,@ocn,@odv,@osp,@parent,@note_,@ocn_,@num,@digest,@tmp=of,is,tags,obj,idx,ocn,odv,osp,parent,note_,ocn_,num,digest,tmp
+      num      = h[:num]        || ((defined? o.num)       ? o.num         : nil)
+      digest   = h[:digest]     || ((defined? o.digest)    ? o.digest      : nil)   #hash digests, sha512, sha256 or md5
+      tmp      = h[:tmp]        || ((defined? o.tmp)       ? o.tmp         : nil)   #available for processing, empty after use
+      @of,@is,@tags,@obj,@idx,@ocn,@odv,@osp,@parent,@note_,@ocn_,@num,@digest,@tmp=
+      of, is, tags, obj, idx, ocn, odv, osp, parent, note_, ocn_, num, digest, tmp
       self
     end
-    def verse(h,o=nil)                                                         #part of poem decide how you deal with this
-      of=      @of                                                             #Symbol, classification - group
-      is=      :verse                                                          #Symbol, classification - specific type
-      tags=    h[:tags]    || ((defined? o.tags)     ? o.tags    : [])         #Array, associated object tags, names if any
-      obj=     h[:obj]     || ((defined? o.obj)      ? o.obj     : nil)        #String, text content
-      idx=     h[:idx]     || ((defined? o.idx)      ? o.idx     : nil)        #String, book index provided?
-      ocn=     h[:ocn]     || ((defined? o.ocn)      ? o.ocn     : nil)        #Integer, sequential on substantive-content objects
-      odv=     h[:odv]     || ((defined? o.odv)      ? o.odv     : nil)
-      osp=     h[:osp]     || ((defined? o.osp)      ? o.osp     : nil)
-      parent=  h[:parent]  || ((defined? o.parent)   ? o.parent  : nil)        #[Node parent]
-      ocn_= if h[:ocn_].nil? then ((defined? o.ocn_) ? o.ocn_    : true)       #Bool? no ocn, non-substantive content, do not include in toc #consider
-      else     h[:ocn_]
+    def verse(h,o=nil)                                                              #part of poem decide how you deal with this
+      of       = @of                                                                #Symbol, classification - group
+      is       = :verse                                                             #Symbol, classification - specific type
+      tags     = h[:tags]       || ((defined? o.tags)      ? o.tags        : [])    #Array, associated object tags, names if any
+      obj      = h[:obj]        || ((defined? o.obj)       ? o.obj         : nil)   #String, text content
+      idx      = h[:idx]        || ((defined? o.idx)       ? o.idx         : nil)   #String, book index provided?
+      ocn      = h[:ocn]        || ((defined? o.ocn)       ? o.ocn         : nil)   #Integer, sequential on substantive-content objects
+      odv      = h[:odv]        || ((defined? o.odv)       ? o.odv         : nil)
+      osp      = h[:osp]        || ((defined? o.osp)       ? o.osp         : nil)
+      parent   = h[:parent]     || ((defined? o.parent)    ? o.parent      : nil)   #[Node parent]
+      ocn_     = if h[:ocn_].nil?
+                                   ((defined? o.ocn_)      ? o.ocn_        : true)  #Bool? no ocn, non-substantive content, do not include in toc #consider
+      else                         h[:ocn_]
       end
-      num=     h[:num]     || ((defined? o.num)      ? o.num     : nil)
-      digest=  h[:digest]  || ((defined? o.digest)   ? o.digest  : nil)        #hash digests, sha512, sha256 or md5
-      tmp=     h[:tmp]     || ((defined? o.tmp)      ? o.tmp     : nil)        #available for processing, empty after use
-      @of,@is,@tags,@obj,@idx,@ocn,@odv,@osp,@parent,@note_,@ocn_,@num,@digest,@tmp=of,is,tags,obj,idx,ocn,odv,osp,parent,note_,ocn_,num,digest,tmp
+      num      = h[:num]        || ((defined? o.num)       ? o.num         : nil)
+      digest   = h[:digest]     || ((defined? o.digest)    ? o.digest      : nil)   #hash digests, sha512, sha256 or md5
+      tmp      = h[:tmp]        || ((defined? o.tmp)       ? o.tmp         : nil)   #available for processing, empty after use
+      @of,@is,@tags,@obj,@idx,@ocn,@odv,@osp,@parent,@note_,@ocn_,@num,@digest,@tmp=
+      of, is, tags, obj, idx, ocn, odv, osp, parent, note_, ocn_, num, digest, tmp
       @h=nil
       self
     end
@@ -356,26 +397,28 @@ module SiSU_AO_DocumentStructure
       @tags=[]
     end
     def table(h,o=nil)
-      of=     @of                                                              #Symbol, classification - group
-      is=     :table                                                           #Symbol, classification - specific type
-      tags=   h[:tags]    || ((defined? o.tags)      ? o.tags    : [])         #Array, associated object tags, names if any
-      cols=   h[:cols]    || ((defined? o.cols)      ? o.cols    : nil)
-      widths= h[:widths]  || ((defined? o.widths)    ? o.widths  : nil)
-      obj=    h[:obj]     || ((defined? o.obj)       ? o.obj     : nil)        #String, text content
-      idx=    h[:idx]     || ((defined? o.idx)       ? o.idx     : nil)        #String, book index provided?
-      ocn=    h[:ocn]     || ((defined? o.ocn)       ? o.ocn     : nil)        #Integer, sequential on substantive-content objects
-      odv=    h[:odv]     || ((defined? o.odv)       ? o.odv     : nil)
-      osp=    h[:osp]     || ((defined? o.osp)       ? o.osp     : nil)
-      parent= h[:parent]  || ((defined? o.parent)    ? o.parent  : nil)        #[Node parent]
-      head_=  h[:head_]   || ((defined? o.head_)     ? o.head_   : false)
-      note_=  h[:note_]   || ((defined? o.note_)     ? o.note_   : false)      #Bool, endnotes/footnotes? (processing optimization)
-      ocn_=if h[:ocn_].nil? then ((defined? o.ocn_)  ? o.ocn_    : true)       #Bool? no ocn, non-substantive content, do not include in toc #consider
-      else    h[:ocn_]
+      of      = @of                                                                 #Symbol, classification - group
+      is      = :table                                                              #Symbol, classification - specific type
+      tags    = h[:tags]        || ((defined? o.tags)      ? o.tags        : [])    #Array, associated object tags, names if any
+      cols    = h[:cols]        || ((defined? o.cols)      ? o.cols        : nil)
+      widths  = h[:widths]      || ((defined? o.widths)    ? o.widths      : nil)
+      obj     = h[:obj]         || ((defined? o.obj)       ? o.obj         : nil)   #String, text content
+      idx     = h[:idx]         || ((defined? o.idx)       ? o.idx         : nil)   #String, book index provided?
+      ocn     = h[:ocn]         || ((defined? o.ocn)       ? o.ocn         : nil)   #Integer, sequential on substantive-content objects
+      odv     = h[:odv]         || ((defined? o.odv)       ? o.odv         : nil)
+      osp     = h[:osp]         || ((defined? o.osp)       ? o.osp         : nil)
+      parent  = h[:parent]      || ((defined? o.parent)    ? o.parent      : nil)   #[Node parent]
+      head_   = h[:head_]       || ((defined? o.head_)     ? o.head_       : false)
+      note_   = h[:note_]       || ((defined? o.note_)     ? o.note_       : false) #Bool, endnotes/footnotes? (processing optimization)
+      ocn_    = if h[:ocn_].nil?
+                                   ((defined? o.ocn_)      ? o.ocn_        : true)  #Bool? no ocn, non-substantive content, do not include in toc #consider
+      else                         h[:ocn_]
       end
-      num=    h[:num]     || ((defined? o.num)       ? o.num     : nil)
-      digest= h[:digest]  || ((defined? o.digest)    ? o.digest  : nil)        #hash digests, sha512, sha256 or md5
-      tmp=    h[:tmp]     || ((defined? o.tmp)       ? o.tmp     : nil)        #available for processing, empty after use
-      @of,@is,@tags,@cols,@widths,@obj,@idx,@ocn,@odv,@osp,@parent,@head_,@note_,@ocn_,@num,@digest,@tmp=of,is,tags,cols,widths,obj,idx,ocn,odv,osp,parent,head_,note_,ocn_,num,digest,tmp
+      num     = h[:num]         || ((defined? o.num)       ? o.num         : nil)
+      digest  = h[:digest]      || ((defined? o.digest)    ? o.digest      : nil)   #hash digests, sha512, sha256 or md5
+      tmp     = h[:tmp]         || ((defined? o.tmp)       ? o.tmp         : nil)   #available for processing, empty after use
+      @of,@is,@tags,@cols,@widths,@obj,@idx,@ocn,@odv,@osp,@parent,@head_,@note_,@ocn_,@num,@digest,@tmp=
+      of, is, tags, cols, widths, obj, idx, ocn, odv, osp, parent, head_, note_, ocn_, num, digest, tmp
       self
     end
   end
@@ -398,8 +441,9 @@ module SiSU_AO_DocumentStructure
       osp=    h[:osp]     || ((defined? o.osp)       ? o.osp     : nil)
       parent= h[:parent]  || ((defined? o.parent)    ? o.parent  : nil)        #[Node parent]
       note_=  h[:note_]   || ((defined? o.note_)     ? o.note_   : false)      #Bool, endnotes/footnotes? (processing optimization)
-      ocn_=if h[:ocn_].nil? then ((defined? o.ocn_)  ? o.ocn_    : true)       #Bool? no ocn, non-substantive content, do not include in toc #consider
-      else  h[:ocn_]
+      ocn_=if h[:ocn_].nil?
+                             ((defined? o.ocn_)  ? o.ocn_    : true)           #Bool? no ocn, non-substantive content, do not include in toc #consider
+      else                   h[:ocn_]
       end
       digest= h[:digest]  || ((defined? o.digest)    ? o.digest  : nil)        #hash digests, sha512, sha256 or md5
       tmp=    h[:tmp]     || ((defined? o.tmp)       ? o.tmp     : nil)        #available for processing, empty after use
@@ -455,10 +499,10 @@ module SiSU_AO_DocumentStructure
     end
   end
   class ObjectLayout
-    attr_accessor :obj,:is,:of,:from,:tmp
+    attr_accessor :obj,:sym,:attr,:is,:is_for,:of,:from,:tmp,:num
     def initialize
       @of=:layout
-      @is=@obj=@from=@tmp=nil
+      @is=@is_for=@obj=@from=@tmp=@num=nil
     end
     def break(h,f=nil)                                                         #decide how to deal with
       of=     @of                                                              #Symbol, classification - group
@@ -477,6 +521,19 @@ module SiSU_AO_DocumentStructure
       @of,@is,@obj,@tmp=of,is,obj,tmp
       self
     end
+    def open_close(h,o=nil)                                                    #useful for poem & quote
+      of=     @of                                                              #Symbol, classification - group
+      is=     :open_close_tags                                                 #Symbol, classification - specific type
+      is_for= h[:is_for]  || ((defined? o.is_for)    ? o.is_for  : nil)        #String, text content
+      obj=    h[:obj]     || ((defined? o.obj)       ? o.obj     : nil)        #String, text content
+      sym=    h[:sym]     || ((defined? o.sym)       ? o.sym     : nil)        #Symbol tag_open, tag_close
+      attr=   h[:attr]    || ((defined? o.attr)      ? o.attr    : nil)        #String, text content
+      tmp=    h[:tmp]     || ((defined? o.tmp)       ? o.tmp     : nil)        #available for processing, empty after use
+      num=    h[:num]     || ((defined? o.num)       ? o.num     : nil)
+      @of,@is,@is_for,@obj,@sym,@attr,@tmp,@num=
+      of, is, is_for, obj, sym, attr, tmp, num
+      self
+    end
   end
   class ObjectComment
     attr_accessor :obj,:is,:of,:tmp
diff --git a/lib/sisu/v5/ao_doc_str.rb b/lib/sisu/v5/ao_doc_str.rb
index 4708a126..931e51d3 100644
--- a/lib/sisu/v5/ao_doc_str.rb
+++ b/lib/sisu/v5/ao_doc_str.rb
@@ -65,10 +65,13 @@ module SiSU_AO_DocumentStructureExtract
     @@flag={
       ocn:         :on,
       code:        :off,
+      lngsyn:      :txt,
       poem:        :off,
       block:       :off,
+      box:         :off,
       group:       :off,
       alt:         :off,
+      quote:       :off,
       table:       :off,
       table_to:    :off,
     }
@@ -81,10 +84,13 @@ module SiSU_AO_DocumentStructureExtract
     @@flag={
       ocn:         :on,
       code:        :off,
+      lngsyn:      :txt,
       poem:        :off,
       block:       :off,
+      box:         :off,
       group:       :off,
       alt:         :off,
+      quote:       :off,
       table:       :off,
       table_to:    :off,
     }
@@ -119,6 +125,11 @@ module SiSU_AO_DocumentStructureExtract
       ? true
       : false
     end
+    def quotes?
+      @@flag[:quote]==:open \
+      ? true
+      : false
+    end
     def hang_and_indent_test(str)
       hang_indent=if str=~/^_([1-9])[^_]/
         [$1,$1]
@@ -143,12 +154,18 @@ module SiSU_AO_DocumentStructureExtract
         [0,0]
       end
       obj=if str2 =~/^(.+?)\s+\\\\(?:\s+|\n)/
-        str2.gsub(/^(.+?)(\s+\\\\(?:\s+|\n))/,"#{Mx[:fa_bold_o]}\\1#{Mx[:fa_bold_c]}\\2")
+        str2.gsub(/^(.+?)(\s+\\\\(?:\s+|\n))/,
+          "#{Mx[:fa_bold_o]}\\1#{Mx[:fa_bold_c]}\\2")
       else
-        str2.gsub(/^(.+?)\n/,"#{Mx[:fa_bold_o]}\\1#{Mx[:fa_bold_c]}\n")
+        str2.gsub(/^(.+?)\n/,
+          "#{Mx[:fa_bold_o]}\\1#{Mx[:fa_bold_c]}\n")
       end
       hang,indent=hang_indent[0],hang_indent[1]
-      [hang,indent,obj]
+      [
+        hang,
+        indent,
+        obj,
+      ]
     end
     def endnote_test?(str)
       (str=~/~\{.+?\}~|~\[.+?\]~/) \
@@ -171,7 +188,10 @@ module SiSU_AO_DocumentStructureExtract
           t.gsub!(/[^a-z0-9._-]/,'')
         end
       end
-      [str,tags]
+      [
+        str,
+        tags,
+      ]
     end
     def rgx_idx_ocn_seg
       @rgx_idx_ocn_seg=/(.+?)\s*[+](\d+)/
@@ -180,14 +200,19 @@ module SiSU_AO_DocumentStructureExtract
       idx_array_raw=idxraw.scan(/[^;]+/)
       idx_hash,idx_array,idx_lst={},[],[]
       idx_array_raw.each do |idx|
+        idx=idx.strip
         idx_lst=case idx
         when /\S+?\s*:/
           idx_couplet_tmp=[]
           idx_couplet=idx.scan(/\s*[^:]+\s*/)
           if idx_couplet[1] =~/[|]/
-            idx_couplet_tmp << idx_couplet[0] << idx_couplet[1].scan(/\s*[^|]+\s*/)
+            idx_couplet_tmp <<
+              idx_couplet[0] <<
+              idx_couplet[1].scan(/\s*[^|]+\s*/)
           else
-            idx_couplet_tmp << idx_couplet[0] << [idx_couplet[1]]
+            idx_couplet_tmp <<
+              idx_couplet[0] <<
+              [idx_couplet[1]]
           end
           idx_couplet=idx_couplet_tmp
         else [idx]
@@ -196,14 +221,17 @@ module SiSU_AO_DocumentStructureExtract
         idx_lst.each do |term_node|
           case term_node
           when String
-            term_node=term_node[0].chr.capitalize + term_node[1,term_node.length]
+            term_node=
+              term_node[0].chr.capitalize +
+              term_node[1,term_node.length]
             term_node=(term_node =~/.+?[+]\d+/) \
             ? term_node
             : (term_node + '+0')
             term_nodes << term_node
             use,plus=rgx_idx_ocn_seg.match(term_node)[1,2]
             @use=use.strip
-            idx_hash[@use]={ sub: [], plus: plus } unless idx_hash[@use] and defined? idx_hash[@use]
+            idx_hash[@use]=
+              { sub: [], plus: plus } unless idx_hash[@use] and defined? idx_hash[@use]
           when Array
             subterm_nodes=[]
             term_node.each do |subterm_node|
@@ -212,15 +240,20 @@ module SiSU_AO_DocumentStructureExtract
               : (subterm_node + '+0')
               subterm_nodes << subterm_node
               sub,sub_plus=rgx_idx_ocn_seg.match(subterm_node)[1,2]
-              idx_hash[@use]={ sub: [], plus: 0 } unless idx_hash[@use] and defined? idx_hash[@use]
-              idx_hash[@use][:sub] << {sub.strip => { plus: sub_plus }}
+              idx_hash[@use]=
+                { sub: [], plus: 0 } unless idx_hash[@use] and defined? idx_hash[@use]
+              idx_hash[@use][:sub] <<
+                { sub.strip => { plus: sub_plus } }
             end
             term_nodes << subterm_nodes
           end
         end
         idx_array << term_nodes
       end
-      { hash: idx_hash, array: idx_array }
+      {
+        hash: idx_hash,
+        array: idx_array,
+      }
     end
     def identify_parts
       tuned_file=[]
@@ -229,8 +262,10 @@ module SiSU_AO_DocumentStructureExtract
       @num_id={
         code_block: 0,
         poem:       0,
+        box:        0,
         group:      0,
         alt:        0,
+        quote:      0,
         table:      0,
       }
       @metadata={}
@@ -239,35 +274,46 @@ module SiSU_AO_DocumentStructureExtract
           h=case $1
           when /[+]/
             @@flag[:ocn]=:on
-            {flag: :ocn_on}
+            {
+              flag: :ocn_on,
+            }
           when /[~]/
             @@flag[:ocn]=:ocn_off_headings_keep
-            {flag: :ocn_off, mod: :headings_keep}
+            {
+              flag: :ocn_off,
+              mod: :headings_keep,
+            }
           when /[-]/ #of particular relevance with level 1~ which is required to precede substantive text & used e.g. in html segmented text
             @@flag[:ocn]=:ocn_off_headings_dummy_lev1
-            {flag: :ocn_off, mod: :headings_exclude}
+            {
+              flag: :ocn_off,
+              mod: :headings_exclude,
+            }
           else
             @@flag[:ocn]=:on
-            {flag: :ocn_on}
+            {
+              flag: :ocn_on,
+            }
           end
           t_o=SiSU_AO_DocumentStructure::ObjectFlag.new.flag_ocn(h)
           next
         end
         t_o=t_o.gsub(/(?:\n\s*\n)+/m,"\n") if @@flag[:code]==:off
-        if t_o !~/^(?:code|poem|alt|group|block)\{|^\}(?:code|poem|alt|group|block)|^(?:table\{|\{table)[ ~]/ \
-        and t_o !~/^```[ ]+(?:code|poem|alt|group|block|table)|^```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/ \
+        if t_o !~/^(?:code(?:\.[a-z][0-9a-z_]+)?|box(?:\.[a-z_]+)?|poem|alt|group|block)\{|^\}(?:code|poem|alt|group|block)|^(?:table\{|\{table)[ ~]/ \
+        and t_o !~/^```[ ]+(?:code(?:\.[a-z][0-9a-z_]+)?|box(?:\.[a-z_]+)?|poem|alt|group|block|table)|^```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$|^`:quote_(?:open|close)`/ \
         and @@flag[:code]==:off \
         and @@flag[:poem]==:off \
         and @@flag[:group]==:off \
         and @@flag[:block]==:off \
         and @@flag[:alt]==:off \
+        and @@flag[:box]==:off \
         and @@flag[:table]==:off
           unless t_o =~/^(?:@\S+?:|%+)\s/                  # extract book index for paragraph if any
-            idx=if t_o=~/^=\{(.+)\}\s*$\Z/m; m=$1
-              m=m.split(/\n/).join(' ').
+            idx=if t_o=~/^=\{\s*(.+)\s*\}\s*$\Z/m; m=$1
+              m=m.split(/[ ]*\n/).join(' ').
                 gsub(/\s+([|:;])\s+/,'\1').
                 gsub(/\s+([+]\d+)\s+/,'\1')
-              t_o=t_o.gsub(/\n=\{.+\}\s*$\Z/m,'')
+              t_o=t_o.gsub(/\n=\{.+?\}\s*$/m,'')
               idx_array_and_hash=construct_idx_array_and_hash(m)
               idx_array_and_hash[:hash]
             else nil
@@ -282,7 +328,7 @@ module SiSU_AO_DocumentStructureExtract
             t_o=nil
           when /^%+\s/                                     #comment
             t_o=if t_o=~/^%+\s+(.+)/
-              h={obj: $1}
+              h={ obj: $1 }
               SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
             else nil
             end
@@ -305,7 +351,13 @@ module SiSU_AO_DocumentStructureExtract
                   end
                 end
               end
-              h={ lv: lv, ln: ln, obj: obj, idx: idx, tags: tags }
+              h={
+                lv: lv,
+                ln: ln,
+                obj: obj,
+                idx: idx,
+                tags: tags,
+              }
               SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
             elsif t_o=~/^:?[A-D1-6]\~(\S+?)-\s+(.+)/m
               name,obj=$1,$2
@@ -323,7 +375,14 @@ module SiSU_AO_DocumentStructureExtract
                   end
                 end
               end
-              h={ lv: lv, name: name, obj: obj, idx: idx, autonum_: false, tags: tags}
+              h={
+                lv: lv,
+                name: name,
+                obj: obj,
+                idx: idx,
+                autonum_: false,
+                tags: tags,
+              }
               SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
             elsif t_o=~/^:?[A-D1-6]\~(\S+)\s+(.+)/m
               name,obj=$1,$2
@@ -341,7 +400,13 @@ module SiSU_AO_DocumentStructureExtract
                   end
                 end
               end
-              h={ lv: lv, name: name, obj: obj, idx: idx, tags: tags }
+              h={
+                lv: lv,
+                name: name,
+                obj: obj,
+                idx: idx,
+                tags: tags,
+              }
               SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
             else nil
             end
@@ -364,7 +429,17 @@ module SiSU_AO_DocumentStructureExtract
                     obj << ' ~#'
                   end
                 end
-                h={ bullet_: bullet, hang: hang, indent: indent, obj: obj, idx: idx, note_: note, image_: image, tags: tags }
+                h={
+                  bullet_: bullet,
+                  hang: hang,
+                  indent: indent,
+                  obj: obj,
+                  idx: idx,
+                  note_: note,
+                  image_: image,
+                  tags: tags,
+                  quote: quotes?,
+                }
                 SiSU_AO_DocumentStructure::ObjectPara.new.paragraph(h)
               end
             else nil
@@ -387,7 +462,16 @@ module SiSU_AO_DocumentStructureExtract
                     obj << ' ~#'
                   end
                 end
-                h={ hang: hang, indent: indent, obj: obj, idx: idx, note_: note, image_: image, tags: tags }
+                h={
+                  hang: hang,
+                  indent: indent,
+                  obj: obj,
+                  idx: idx,
+                  note_: note,
+                  image_: image,
+                  tags: tags,
+                  quote: quotes?,
+                }
                 SiSU_AO_DocumentStructure::ObjectPara.new.paragraph(h)
               end
             else nil
@@ -411,22 +495,52 @@ module SiSU_AO_DocumentStructureExtract
               end
             end
             unless obj=~/\A\s*\Z/m
-              h={ bullet_: false, indent: 0, hang: 0, obj: obj, idx: idx, note_: note, image_: image, tags: tags }
-              SiSU_AO_DocumentStructure::ObjectPara.new.paragraph(h)
+              h={
+                bullet_: false,
+                indent: 0,
+                hang: 0,
+                obj: obj,
+                idx: idx,
+                note_: note,
+                image_: image,
+                tags: tags,
+                quote: quotes?,
+              }
+              t_o=SiSU_AO_DocumentStructure::ObjectPara.new.paragraph(h)
             end
+            t_o=SiSU_AO_DocumentStructureExtract::Structure.new(@md).structure_markup(t_o) #must happen earlier, node info etc. require
           end
         elsif @@flag[:code]==:off
-          if t_o =~/^(?:code\{|```[ ]+code)/
+          if t_o =~/^(?:code(?:\.[a-z][0-9a-z_]+)?\{|```[ ]+code(?:\.[a-z][0-9a-z_]+)?)/
             @@flag[:code]=case t_o
-            when /^code\{/         then :curls
-            when /^```[ ]+code/    then :tics
-            else                   @@flag[:code] #error
+            when /^code(?:\.[a-z][0-9a-z_]+)?\{/ then :curls
+            when /^```[ ]+code/                  then :tics
+            else                                 @@flag[:code] #error
+            end
+            @@flag[:lngsyn]=if t_o =~/^(?:code\.[a-z][0-9a-z_]+\{|```[ ]+code\.[a-z_]+)/
+              case t_o
+              when /^code\.([a-z][0-9a-z_]+)\{/
+                :"#{$1}"
+              when /^```[ ]+code\.([a-z][0-9a-z_]+)/
+                :"#{$1}"
+              else :txt
+              end
+            else :txt
             end
             @@counter=1
-            @codeblock_numbered=(t_o =~/^(?:code\{#|```[ ]+code\s[#])/) ? true : false
+            @codeblock_numbered=
+              (t_o =~/^(?:code(?:\.[a-z][0-9a-z_]+)?\{#|```[ ]+code(?:\.[a-z][0-9a-z_]+)?\s[#])/) \
+              ? true
+              : false
             @num_id[:code_block] +=1
-            h={ obj: "group text start #{@num_id[:code_block]}" }
-            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
+            h={
+              is_for: :code,
+              obj: '',
+              sym: :code_block_open,
+              num: @num_id[:code_block],
+              syntax: @@flag[:lngsyn],
+            }
+            t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
           elsif t_o =~/^(?:poem\{|```[ ]+poem)/
             @@flag[:poem]=case t_o
             when /^poem\{/        then :curls
@@ -434,44 +548,95 @@ module SiSU_AO_DocumentStructureExtract
             else                  @@flag[:poem] #error
             end
             @num_id[:poem] +=1
-            h={ obj: "poem start #{@num_id[:poem]}" }
-            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
+            h={
+              is_for: :poem,
+              obj: '',
+              sym: :poem_open,
+              num: @num_id[:poem],
+            }
+            t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
+            tuned_file << t_o
+          elsif t_o =~/^(?:box(?:\.[a-z_]+)?\{|```[ ]+box(?:\.[a-z_]+)?)/
+            @@flag[:box]=case t_o
+            when /^box\{/         then :curls
+            when /^```[ ]+box/    then :tics
+            else                       @@flag[:box] #error
+            end
+            @num_id[:box] +=1
+            h={
+              is_for: :box,
+              obj: '',
+              sym: :box_open,
+              num: @num_id[:box],
+            }
+            t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
             tuned_file << t_o
           elsif t_o =~/^(?:group\{|```[ ]+group)/
             @@flag[:group]=case t_o
             when /^group\{/       then :curls
             when /^```[ ]+group/  then :tics
-            else                  @@flag[:group] #error
+            else                       @@flag[:group] #error
             end
             @num_id[:group] +=1
-            h={ obj: "group text start #{@num_id[:group]}" }
-            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
+            h={
+              is_for: :group,
+              obj: '',
+              sym: :group_open,
+              num: @num_id[:group],
+            }
+            t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
             tuned_file << t_o
           elsif t_o =~/^(?:block\{|```[ ]+block)/
             @@flag[:block]=case t_o
             when /^block\{/       then :curls
             when /^```[ ]+block/  then :tics
-            else                  @@flag[:block] #error
+            else                       @@flag[:block] #error
             end
             @num_id[:block] +=1
-            h={ obj: "block text start #{@num_id[:block]}" }
-            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
+            h={
+              is_for: :block,
+              obj: '',
+              sym: :block_open,
+              num: @num_id[:block],
+            }
+            t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
             tuned_file << t_o
           elsif t_o =~/^(?:alt\{|```[ ]+alt)/
             @@flag[:alt]=case t_o
             when /^alt\{/         then :curls
             when /^```[ ]+alt/    then :tics
-            else                  @@flag[:alt] #error
+            else                       @@flag[:alt] #error
             end
             @num_id[:alt] +=1
-            h={ obj: "alt text start #{@num_id[:alt]}" }
-            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
+            h={
+              is_for: :alt,
+              obj: '',
+              sym: :alt_open,
+              num: @num_id[:alt],
+            }
+            t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
             tuned_file << t_o
+          elsif t_o =~/^`:quote_open`/
+            @@flag[:quote]=:open
+            @num_id[:quote] +=1
+            h={
+              is_for: :quote,
+              obj: '',
+              sym: :quote_open,
+              num: @num_id[:quote],
+            }
+            t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
+            #tuned_file << t_o #% find second source, entered twice, should be once so closed off here
           elsif t_o =~/^(?:table\{|```[ ]+table|\{table)[ ~]/
             @num_id[:table] +=1
-            h={ obj: "table start #{@num_id[:table]}" }
-            ins=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
-            tuned_file << ins
+            h={
+              is_for: :table,
+              obj: '',
+              sym: :table_open,
+              num: @num_id[:table],
+            }
+            ins_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
+            tuned_file << ins_o
             if t_o=~/^table\{(?:~h)?\s+/
               @@flag[:table]=:curls
               @rows=''
@@ -485,7 +650,12 @@ module SiSU_AO_DocumentStructureExtract
                 col=$2.scan(/\d+/)
                 heading=false
               end
-              @h={ head_: heading, cols: cols, widths: col, idx: idx }
+              @h={
+                head_: heading,
+                cols: cols,
+                widths: col,
+                idx: idx,
+              }
             elsif t_o=~/^```[ ]+table(?:~h)?\s+c\d+/
               @@flag[:table]=:tics
               @rows=''
@@ -499,7 +669,12 @@ module SiSU_AO_DocumentStructureExtract
                 col=$2.scan(/\d+/)
                 heading=false
               end
-              @h={ head_: heading, cols: cols, widths: col, idx: idx }
+              @h={
+                head_: heading,
+                cols: cols,
+                widths: col,
+                idx: idx,
+              }
             elsif t_o=~/^\{table(?:~h)?(?:\s+\d+;?)?\}\n.+\Z/m
               m1,m2,hd=nil,nil,nil
               tbl=/^\{table(?:~h)?(?:\s+\d+;?)?\}\n(.+)\Z/m.match(t_o)[1]
@@ -510,7 +685,7 @@ module SiSU_AO_DocumentStructureExtract
               cols=nil
               rws.each do |r|
                 cols=(cols ? cols : (r.scan('|').length) +1)
-                r=r.gsub(/\s*\|\s*/m,"#{Mx[:tc_p]}")        #r.gsub!(/\|/m,"#{Mx[:tc_p]}")
+                r=r.gsub(/\s*\|\s*/m,"#{Mx[:tc_p]}")       #r.gsub!(/\|/m,"#{Mx[:tc_p]}")
                 rows += r + Mx[:tc_c]
               end
               col=[]
@@ -523,18 +698,31 @@ module SiSU_AO_DocumentStructureExtract
                 width=100.00/cols
                 cols.times { col << width }
               end
-              h={ head_: hd, cols: cols, widths: col, obj: rows, idx: idx, tags: tags, num: @num_id[:table] }
+              h={
+                head_: hd,
+                cols: cols,
+                widths: col,
+                obj: rows,
+                idx: idx,
+                tags: tags,
+                num: @num_id[:table],
+              }
               t_o=SiSU_AO_DocumentStructure::ObjectTable.new.table(h) unless h.nil?
               tuned_file << t_o
-              h={ obj: "table end #{@num_id[:table]}" }
-              t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
+              h={
+                is_for: :table,
+                obj: '',
+                sym: :table_close,
+                num: @num_id[:table],
+              }
+              t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
               t_o
             elsif t_o=~/^```[ ]+table(?:~h)?\s+/
               m1,m2,hd=nil,nil,nil
               h=case t_o
-              when /^```[ ]+table~h\s+(.+?)\n(.+)\Z/m          #two table representations should be consolidated as one
+              when /^```[ ]+table~h\s+(.+?)\n(.+)\Z/m      #two table representations should be consolidated as one
                 m1,tbl,hd=$1,$2,true
-              when /^```[ ]+table\s+(.+?)\n(.+)\Z/m            #two table representations should be consolidated as one
+              when /^```[ ]+table\s+(.+?)\n(.+)\Z/m        #two table representations should be consolidated as one
                 m1,tbl,hd=$1,$2,false
               else nil
               end
@@ -543,14 +731,27 @@ module SiSU_AO_DocumentStructureExtract
               rws=tbl.split(/\n/)
               rows=''
               rws.each do |r|
-                r=r.gsub(/\s*\|\s*/m,"#{Mx[:tc_p]}")        #r.gsub!(/\|/m,"#{Mx[:tc_p]}")
+                r=r.gsub(/\s*\|\s*/m,"#{Mx[:tc_p]}")       #r.gsub!(/\|/m,"#{Mx[:tc_p]}")
                 rows += r + Mx[:tc_c]
               end
-              h={ head_: hd, cols: col.length, widths: col, obj: rows, idx: idx, tags: tags, num: @num_id[:table] }
+              h={
+                head_: hd,
+                cols: col.length,
+                widths: col,
+                obj: rows,
+                idx: idx,
+                tags: tags,
+                num: @num_id[:table],
+              }
               t_o=SiSU_AO_DocumentStructure::ObjectTable.new.table(h) unless h.nil?
               tuned_file << t_o
-              h={ obj: "table end #{@num_id[:table]}" }
-              t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
+              h={
+                is_for: :table,
+                obj: '',
+                sym: :table_close,
+                num: @num_id[:table],
+                }
+              t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
               t_o
             elsif t_o=~/^\{table(?:~h)?\s+/
               m1,m2,hd=nil,nil,nil
@@ -566,14 +767,27 @@ module SiSU_AO_DocumentStructureExtract
               rws=tbl.split(/\n/)
               rows=''
               rws.each do |r|
-                r=r.gsub(/\s*\|\s*/m,"#{Mx[:tc_p]}")        #r.gsub!(/\|/m,"#{Mx[:tc_p]}")
+                r=r.gsub(/\s*\|\s*/m,"#{Mx[:tc_p]}")       #r.gsub!(/\|/m,"#{Mx[:tc_p]}")
                 rows += r + Mx[:tc_c]
               end
-              h={ head_: hd, cols: col.length, widths: col, obj: rows, idx: idx, tags: tags, num: @num_id[:table] }
+              h={
+                head_: hd,
+                cols: col.length,
+                widths: col,
+                obj: rows,
+                idx: idx,
+                tags: tags,
+                num: @num_id[:table],
+              }
               t_o=SiSU_AO_DocumentStructure::ObjectTable.new.table(h) unless h.nil?
               tuned_file << t_o
-              h={ obj: "table end #{@num_id[:table]}" }
-              t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
+              h={
+                is_for: :table,
+                obj: '',
+                sym: :table_close,
+                num: @num_id[:table],
+              }
+              t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
               t_o
             end
           end
@@ -586,17 +800,28 @@ module SiSU_AO_DocumentStructureExtract
           and t_o =~/^```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/)
             @@flag[:table]=:off
             headings,columns,widths,idx=@h[:head_],@h[:cols],@h[:widths],@h[:idx]
-            @h={ head_: headings, cols: columns, widths: widths, idx: idx, obj: @rows }
+            @h={
+              head_: headings,
+              cols: columns,
+              widths: widths,
+              idx: idx,
+              obj: @rows,
+            }
             t_o=SiSU_AO_DocumentStructure::ObjectTable.new.table(@h)
             tuned_file << t_o
             @h,@rows=nil,''
-            h={ obj: "table end #{@num_id[:table]}" }
-            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
+            h={
+              is_for: :table,
+              obj: '',
+              sym: :table_close,
+              num: @num_id[:table],
+            }
+            t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
             t_o
           else
             if t_o.is_a?(String) \
             and t_o !~/^(?:table\{|```[ ]+table)/
-              t_o=t_o.gsub(/^\n+/m,''). #check added for ruby 1.9.2 not needed in 1.8 series (tested in v2)
+              t_o=t_o.gsub(/^\n+/m,'').
                 gsub(/\n+/m,"#{Mx[:tc_p]}")
               @rows += t_o + Mx[:tc_c]
             end
@@ -610,12 +835,24 @@ module SiSU_AO_DocumentStructureExtract
             @tuned_code[-1].gsub!(/\s*(?:#{Mx[:br_line]}|#{Mx[:br_nl]})\s*\Z/m,'')
             obj=@tuned_code.join("\n")
             tags=[]
-            h={ obj: obj, tags: tags, num: @num_id[:code_block], number_: @codeblock_numbered }
+            h={
+              obj: obj,
+              syntax: @@flag[:lngsyn],
+              tags: tags,
+              num: @num_id[:code_block],
+              number_: @codeblock_numbered,
+            }
+            @@flag[:lngsyn]=:txt
             t_o=SiSU_AO_DocumentStructure::ObjectBlockTxt.new.code(h)
             @tuned_code=[]
             tuned_file << t_o
-            h={ obj: "code block end #{@num_id[:code_block]}" }
-            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
+            h={
+              is_for: :code,
+              obj: '',
+              sym: :code_close,
+              num: @num_id[:code_block],
+            }
+            t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
           end
           if (@@flag[:code]==:curls or @@flag[:code]==:tics) \
           and t_o.is_a?(String)
@@ -627,51 +864,125 @@ module SiSU_AO_DocumentStructureExtract
             t_o=nil
           end
         elsif (@@flag[:poem]==:curls or @@flag[:poem]==:tics) \
+        or (@@flag[:box]==:curls or @@flag[:box]==:tics) \
         or (@@flag[:group]==:curls or @@flag[:group]==:tics) \
         or (@@flag[:block]==:curls or @@flag[:block]==:tics) \
-        or (@@flag[:alt]==:curls or @@flag[:alt]==:tics)
+        or (@@flag[:alt]==:curls or @@flag[:alt]==:tics) \
+        or (@@flag[:quote]==:open and t_o =~/`:quote_close`/m) #not
           if (@@flag[:poem]==:curls and t_o =~/^\}poem/) \
           or (@@flag[:poem]==:tics and t_o =~/^```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/)
             @@flag[:poem]=:off
-            h={ obj: "poem end #{@num_id[:poem]}" }
-            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
+            h={
+              is_for: :poem,
+              obj: '',
+              sym: :poem_close,
+              num: @num_id[:poem],
+            }
+            t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
+          elsif (@@flag[:box]==:curls and t_o =~/^\}box/) \
+          or (@@flag[:box]==:tics and t_o =~/^```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/)
+            @@flag[:box]=:off
+            obj,tags=extract_tags(@tuned_block.join("\n"))
+            h={
+              obj: obj,
+              tags: tags,
+              num: @num_id[:box],
+            }
+            @tuned_block=[]
+            t_o=SiSU_AO_DocumentStructure::ObjectBlockTxt.new.box(h)
+            tuned_file << t_o
+            h={
+              is_for: :box,
+              obj: '',
+              sym: :box_close,
+              num: @num_id[:box],
+            }
+            t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
           elsif (@@flag[:group]==:curls and t_o =~/^\}group/) \
           or (@@flag[:group]==:tics and t_o =~/^```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/)
             @@flag[:group]=:off
             obj,tags=extract_tags(@tuned_block.join("\n"))
-            h={ obj: obj, tags: tags, num: @num_id[:group] }
+            h={
+              obj: obj,
+              tags: tags,
+              num: @num_id[:group],
+            }
             @tuned_block=[]
             t_o=SiSU_AO_DocumentStructure::ObjectBlockTxt.new.group(h)
             tuned_file << t_o
-            h={ obj: "group text end #{@num_id[:group]}" }
-            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
+            h={
+              is_for: :group,
+              obj: '',
+              sym: :group_close,
+              num: @num_id[:group],
+            }
+            t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
           elsif (@@flag[:block]==:curls and t_o =~/^\}block/) \
           or (@@flag[:block]==:tics and t_o =~/^```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/)
             @@flag[:block]=:off
             obj,tags=extract_tags(@tuned_block.join("\n"))
-            h={ obj: obj, tags: tags, num: @num_id[:block] }
+            h={
+              obj: obj,
+              tags: tags,
+              num: @num_id[:block],
+            }
             @tuned_block=[]
             t_o=SiSU_AO_DocumentStructure::ObjectBlockTxt.new.block(h)
             tuned_file << t_o
-            h={ obj: "block text end #{@num_id[:block]}" }
-            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
+            h={
+              is_for: :block,
+              obj: '',
+              sym: :block_close,
+              num: @num_id[:block],
+            }
+            t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
           elsif (@@flag[:alt]==:curls and t_o =~/^\}alt/) \
           or (@@flag[:alt]==:tics and t_o =~/^```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/)
             @@flag[:alt]=:off
             obj,tags=extract_tags(@tuned_block.join("\n"))
-            h={ obj: obj, tags: tags, num: @num_id[:alt] }
+            h={
+              obj: obj,
+              tags: tags,
+              num: @num_id[:alt],
+            }
             t_o=SiSU_AO_DocumentStructure::ObjectBlockTxt.new.alt(h)
             @tuned_block=[]
             tuned_file << t_o
-            h={ obj: "alt text end #{@num_id[:alt]}" }
-            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
+            h={
+              is_for: :alt,
+              obj: '',
+              sym: :alt_close,
+              num: @num_id[:alt],
+            }
+            t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
+          elsif @@flag[:quote]==:open and t_o =~/`:quote_close`/m
+            @@flag[:quote]=:off
+            h={
+              is_for: :quote,
+              obj: '',
+              sym: :quote_close,
+              num: @num_id[:quote],
+            }
+            t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
+          elsif @@flag[:quote]==:open
+            t_o,tags=extract_tags(t_o)
+            h={
+              indent: 1,
+              obj: t_o,
+              idx: idx,
+              note_: note,
+              image_: image,
+              tags: tags,
+              quote: quotes?,
+            }
+            SiSU_AO_DocumentStructure::ObjectPara.new.paragraph(h)
           end
           if (@@flag[:poem]==:curls or @@flag[:poem]==:tics \
           or @@flag[:group]==:curls or @@flag[:group]==:tics \
           or @@flag[:alt]==:curls or @@flag[:alt]==:tics) \
           and t_o =~/\S/ \
-          and t_o !~/^(?:\}(?:verse|code|alt|group|block)|(?:verse|code|alt|group|block)\{)/ \
-          and t_o !~/^```[ ]+(?:code|poem|alt|group|block)|^```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/ # fix logic
+          and t_o !~/^(?:\}(?:verse|code|box|alt|group|block)|(?:verse|code(?:\.[a-z][0-9a-z_]+)?|box(?:\.[a-z_]+)?|alt|group|block)\{)/ \
+          and t_o !~/^```[ ]+(?:code(?:\.[a-z][0-9a-z_]+)?|box(?:\.[a-z_]+)?|poem|alt|group|block)|^```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/ # fix logic
             sub_array=t_o.dup
             @line_mode=sub_array.scan(/.+/)
             type=if @@flag[:poem]==:curls or @@flag[:poem]==:tics
@@ -680,7 +991,11 @@ module SiSU_AO_DocumentStructureExtract
               poem.each do |v|
                 v=v.gsub(/\n/m,"#{Mx[:br_nl]}\n")
                 obj,tags=extract_tags(v)
-                h={ obj: obj, tags: tags, num: @num_id[:poem] }
+                h={
+                  obj: obj,
+                  tags: tags,
+                  num: @num_id[:poem],
+                }
                 t_o=SiSU_AO_DocumentStructure::ObjectBlockTxt.new.verse(h)
                 tuned_file << t_o
               end
@@ -692,8 +1007,10 @@ module SiSU_AO_DocumentStructureExtract
         end
         if @@flag[:code]==:off
           if @@flag[:poem]==:curls or @@flag[:poem]==:tics \
+          or @@flag[:box]==:curls or @@flag[:box]==:tics \
           or @@flag[:group]==:curls or @@flag[:group]==:tics \
-          or @@flag[:alt]==:curls or @@flag[:alt]==:tics
+          or @@flag[:alt]==:curls or @@flag[:alt]==:tics \
+          or (@@flag[:quote]==:open and t_o =~/`:quote_close`/m)
             if t_o.is_a?(String)
               t_o=t_o.gsub(/\n/m,"#{Mx[:br_nl]}").
                 gsub(/[ ][ ]/m,"#{Mx[:nbsp]*2}").
@@ -702,6 +1019,7 @@ module SiSU_AO_DocumentStructureExtract
             elsif t_o.is==:group \
             || t_o.is==:block \
             || t_o.is==:alt \
+            || t_o.is==:box \
             || t_o.is==:verse
               t_o.obj=t_o.obj.gsub(/\n/m,"#{Mx[:br_nl]}").
                 gsub(/[ ][ ]/m,"#{Mx[:nbsp]*2}").
@@ -715,26 +1033,67 @@ module SiSU_AO_DocumentStructureExtract
       end
       if @md.flag_endnotes
         tuned_file << @pb
-        h={ ln: 1, lc: 1, obj: 'Endnotes', autonum_: false }
+        h={
+          ln: 1,
+          lc: 1,
+          obj: 'Endnotes',
+          autonum_: false,
+        }
         tuned_file << SiSU_AO_DocumentStructure::ObjectHeading.new.heading_insert(h)
-        h={ ln: 4, lc: 2, obj: 'Endnotes', name: 'endnotes', autonum_: false }
+        h={
+          ln: 4,
+          lc: 2,
+          obj: 'Endnotes',
+          name: 'endnotes',
+          autonum_: false,
+        }
         tuned_file << SiSU_AO_DocumentStructure::ObjectHeading.new.heading_insert(h)
-        h={ obj: 'Endnotes' }
+        h={
+          obj: 'Endnotes'
+          }
       end
       if @md.book_idx
         tuned_file << @pb
-        h={ ln: 1, lc: 1, obj: 'Index', autonum_: false }
+        h={
+          ln: 1,
+          lc: 1,
+          obj: 'Index',
+          autonum_: false,
+        }
         tuned_file << SiSU_AO_DocumentStructure::ObjectHeading.new.heading_insert(h)
-        h={ ln: 4, lc: 2, obj: 'Index', name: 'book_index', autonum_: false }
+        h={
+          ln: 4,
+          lc: 2,
+          obj: 'Index',
+          name: 'book_index',
+          autonum_: false,
+        }
         tuned_file << SiSU_AO_DocumentStructure::ObjectHeading.new.heading_insert(h)
-        h={ obj: 'Index' }
+        h={
+          obj: 'Index'
+        }
       end
       tuned_file << @pb
-      h={ ln: 1, lc: 1, obj: 'Metadata', autonum_: false, ocn_: false }
+      h={
+        ln: 1,
+        lc: 1,
+        obj: 'Metadata',
+        autonum_: false,
+        ocn_: false,
+      }
       tuned_file << SiSU_AO_DocumentStructure::ObjectHeading.new.heading_insert(h)
-      h={ ln: 4, lc: 2, obj: 'SiSU Metadata, document information', name: 'metadata', autonum_: false, ocn_: false }
+      h={
+        ln: 4,
+        lc: 2,
+        obj: 'SiSU Metadata, document information',
+        name: 'metadata',
+        autonum_: false,
+        ocn_: false,
+      }
       tuned_file << SiSU_AO_DocumentStructure::ObjectHeading.new.heading_insert(h)
-      h={ obj: 'eof' }
+      h={
+        obj: 'eof',
+      }
       meta=SiSU_AO_DocumentStructure::ObjectMetadata.new.metadata(@metadata)
       [tuned_file,meta]
     end
@@ -747,19 +1106,28 @@ module SiSU_AO_DocumentStructureExtract
       table
     end
     def meta_heading(h)
-      h={ lv: h[:lv], ln: h[:ln], name: h[:name], obj: h[:obj], ocn: '0' }
+      h={
+        lv: h[:lv],
+        ln: h[:ln],
+        name: h[:name],
+        obj: h[:obj],
+        ocn: '0',
+      }
       SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
     end
     def meta_para(str)
-      h={ obj: str, ocn_: false }
+      h={
+        obj: str,
+        ocn_: false,
+      }
       SiSU_AO_DocumentStructure::ObjectPara.new.paragraph(h)
     end
     def build_lines(type=:none)
       lines,lines_new=@data,[]
       lines.each do |line|
         line=if line =~/\S/ \
-        and line !~/^(?:code\{|\}code)/ \
-        and line !~/^(?:```[ ]+code|```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$)/ \
+        and line !~/^(?:code(?:\.[a-z][0-9a-z_]+)?\{|\}code)/ \
+        and line !~/^(?:```[ ]+code(?:\.[a-z][0-9a-z_]+)?|```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$)/ \
         and not line.is_a?(Hash) #watch
           @@counter+=1 if @@flag[:code]==:curls or @@flag[:code]==:tics
           line=line.gsub(/\s\s/,"#{Mx[:nbsp]*2}").
@@ -767,7 +1135,7 @@ module SiSU_AO_DocumentStructureExtract
           line=line.gsub(/^/,"#{Mx[:gr_o]}codeline#{Mx[:gr_c]}") if type==:code # REMOVE try sort for texpdf special case
           line=if line =~/(?:https?|file|ftp):\/\/\S+$/
             line.gsub(/\s*$/," #{Mx[:br_nl]}")
-          else line.gsub(/\s*$/,"#{Mx[:br_nl]}") #unless type=='code'
+          else line.gsub(/\s*$/,"#{Mx[:br_nl]}")           #unless type=='code'
           end
         elsif line =~/^\s*$/
           line.gsub(/\s*$/,"#{Mx[:br_nl]}")
@@ -779,45 +1147,74 @@ module SiSU_AO_DocumentStructureExtract
     end
   end
   class Structure                                          # this must happen early
-    def initialize(md,dob)
-      @md,@dob=md,dob
+    def initialize(md)
+      @md=md
     end
-    def structure
-      structure_markup
-      @dob
+    def structure(data)
+      data.compact.each do |dob|
+        structure_markup(dob)
+      end
     end
-    def structure_markup                                   #build structure where structure provided only in meta header
-      @dob=if @dob.is==:para \
-      && (((@dob.hang !~/[1-9]/) && (@dob.indent !~/[1-9]/)) \
-      || (@dob.hang != @dob.indent)) \
-      and not @dob.bullet_
-        @dob=case @dob.obj
+    def structure_markup(dob)                                   #build structure where structure provided only in meta header
+      dob=if dob.is==:para \
+      && (((dob.hang !~/[1-9]/) && (dob.indent !~/[1-9]/)) \
+      || (dob.hang != dob.indent)) \
+      and not dob.bullet_
+        dob=case dob.obj
         when /^#{@md.lv0}/
-          h={ lv: 'A', ln: 0 }
-          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
+          h={
+            is: :heading,
+            lv: 'A',
+            ln: 0,
+          }
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,dob)
         when /^#{@md.lv1}/
-          h={ lv: 'B', ln: 1 }
-          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
+          h={
+            is: :heading,
+            lv: 'B',
+            ln: 1,
+          }
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,dob)
         when /^#{@md.lv2}/
-          h={ lv: 'C', ln: 2 }
-          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
+          h={
+            is: :heading,
+            lv: 'C',
+            ln: 2,
+          }
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,dob)
         when /^#{@md.lv3}/
-          h={ lv: 'D', ln: 3 }
-          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
+          h={
+            is: :heading,
+            lv: 'D',
+            ln: 3,
+          }
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,dob)
         when /^#{@md.lv4}/
-          h={ lv: '1', ln: 4 }
-          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
+          h={
+            is: :heading,
+            lv: '1',
+            ln: 4,
+          }
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,dob)
         when /^#{@md.lv5}/
-          h={ lv: '2', ln: 5 }
-          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
+          h={
+            is: :heading,
+            lv: '2',
+            ln: 5,
+          }
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,dob)
         when /^#{@md.lv6}/
-          h={ lv: '3', ln: 6 }
-          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
-        else @dob
+          h={
+            is: :heading,
+            lv: '3',
+            ln: 6,
+          }
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,dob)
+        else dob
         end
-      else @dob
+      else dob
       end
-      @dob
+      dob
     end
   end
   class OCN
@@ -1190,6 +1587,7 @@ SKIPPED processing file: [#{@md.opt.lng}] "#{@md.fns}"}
               ocnc+=1
               ocn_sp,parent="c#{ocnc}",node
             elsif dob.is==:group \
+            || dob.is==:box \
             || dob.is==:block \
             || dob.is==:alt \
             || dob.is==:verse
@@ -1204,7 +1602,8 @@ SKIPPED processing file: [#{@md.opt.lng}] "#{@md.fns}"}
           end
           if dob.is==:heading
             if ocn_flag==true
-              dob.ln,dob.node,dob.ocn,dob.ocn_,dob.odv,dob.osp,dob.parent,dob.lc=ln,node,ocn,ocn_flag,ocn_dv,ocn_sp,parent,collapsed_level
+              dob.ln,dob.node,dob.ocn,dob.ocn_,dob.odv,dob.osp,dob.parent,dob.lc=
+                ln,  node,    ocn,    ocn_flag, ocn_dv,ocn_sp, parent,    collapsed_level
             else
               ocnu+=1
               heading_use=:ok
@@ -1215,19 +1614,22 @@ SKIPPED processing file: [#{@md.opt.lng}] "#{@md.fns}"}
                 dob.obj=dob.obj.gsub(/#{Mx[:pa_non_object_dummy_heading]}/,'')
                 heading_use=:dummy
               end
-              dob.ln,dob.node,dob.ocn,dob.ocn_,dob.use_,dob.odv,dob.osp,dob.parent,dob.lc=ln,node,nil,ocn_flag,heading_use,ocn_dv,ocn_sp,parent,collapsed_level
+              dob.ln,dob.node,dob.ocn,dob.ocn_,dob.use_,   dob.odv,dob.osp,dob.parent,dob.lc=
+                ln,  node,    nil,    ocn_flag,heading_use,ocn_dv, ocn_sp, parent,    collapsed_level
             end
           else
             if dob.of !=:meta \
             && dob.of !=:comment \
             && dob.of !=:layout
               if ocn_flag == true
-                dob.ocn,dob.ocn_,dob.odv,dob.osp,dob.parent=ocn,ocn_flag,ocn_dv,ocn_sp,parent
+                dob.ocn,dob.ocn_,dob.odv,dob.osp,dob.parent=
+                  ocn,  ocn_flag,ocn_dv, ocn_sp, parent
               else
                 ocnu+=1
                 dob.obj=dob.obj.gsub(/#{Mx[:fa_o]}[~-]##{Mx[:fa_c]}/,'') if dob.obj
                 ocn_dv,ocn_sp="u#{ocnu}","u#{ocnu}"
-                dob.ocn,dob.ocn_,dob.odv,dob.osp,dob.parent=nil,ocn_flag,ocn_dv,ocn_sp,parent
+                dob.ocn,dob.ocn_,dob.odv,dob.osp,dob.parent=
+                  nil,  ocn_flag,ocn_dv, ocn_sp, parent
               end
             end
           end
@@ -1237,6 +1639,7 @@ SKIPPED processing file: [#{@md.opt.lng}] "#{@md.fns}"}
         if dob.is==:code \
         || dob.is==:verse \
         || dob.is==:alt \
+        || dob.is==:box \
         || dob.is==:group \
         || dob.is==:block
           dob.obj=dob.obj.gsub(/\n+/,"\n") #newlines taken out
@@ -1274,7 +1677,10 @@ SKIPPED processing file: [#{@md.opt.lng}] "#{@md.fns}"}
       data=@data
       tuned_file=[]
       hs=[0,false,false,false]
-      t={ lv: @s[0], status: :open }
+      t={
+        lv: @s[0],
+        status: :open,
+      }
       tuned_file << tags(t)
       if @md.opt.act[:verbose_plus][:set]==:on
         puts "\nXML sisu structure outline --->\n"
@@ -1366,7 +1772,13 @@ SKIPPED processing file: [#{@md.opt.lng}] "#{@md.fns}"}
       when '5' then 8
       when '6' then 9
       end
-      h={ tag: tag, node: o[:node], lv: o[:lv], ln: ln, status: o[:status] }
+      h={
+        tag: tag,
+        node: o[:node],
+        lv: o[:lv],
+        ln: ln,
+        status: o[:status],
+      }
       SiSU_AO_DocumentStructure::ObjectStructure.new.xml_dom(h) #downstream code utilise else ignore like comments
     end
     def tag_open(o,tag)
@@ -1379,121 +1791,205 @@ SKIPPED processing file: [#{@md.opt.lng}] "#{@md.fns}"}
       case hs[0]
       when 0
         if (lev <= 0) and hs[0]
-          t={ lv: @s[0], status: :close }
+          t={
+            lv: @s[0],
+            status: :close,
+          }
           ary << tags(t)
         end
       when 1
         if (lev <= 1) and hs[1]
-          t={ lv: @s[1], status: :close }
+          t={
+            lv: @s[1],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev==0)
-          t={ lv: @s[0], status: :close }
+          t={
+            lv: @s[0],
+            status: :close,
+          }
           ary << tags(t)
         end
       when 2
         if (lev <= 2) and hs[2]
-          t={ lv: @s[2], status: :close }
+          t={
+            lv: @s[2],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 1) and hs[1]
-          t={ lv: @s[1], status: :close }
+          t={
+            lv: @s[1],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev==0)
-          t={ lv: @s[0], status: :close }
+          t={
+            lv: @s[0],
+            status: :close,
+          }
           ary << tags(t)
         end
       when 3
         if (lev <= 3) and hs[3]
-          t={ lv: @s[3], status: :close }
+          t={
+            lv: @s[3],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 2) and hs[2]
-          t={ lv: @s[2], status: :close }
+          t={
+            lv: @s[2],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 1) and hs[1]
-          t={ lv: @s[1], status: :close }
+          t={
+            lv: @s[1],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev==0)
-          t={ lv: @s[0], status: :close }
+          t={
+            lv: @s[0],
+            status: :close,
+          }
           ary << tags(t)
         end
       when 4
         if (lev <= 4)
-          t={ lv: @s[4], status: :close }
+          t={
+            lv: @s[4],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 3) and hs[3]
-          t={ lv: @s[3], status: :close }
+          t={
+            lv: @s[3],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 2) and hs[2]
-          t={ lv: @s[2], status: :close }
+          t={
+            lv: @s[2],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 1) and hs[1]
-          t={ lv: @s[1], status: :close }
+          t={
+            lv: @s[1],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev==0)
-          t={ lv: @s[0], status: :close }
+          t={
+            lv: @s[0],
+            status: :close,
+          }
           ary << tags(t)
         end
       when 5
         if (lev <= 5)
-          t={ lv: @s[5], status: :close }
+          t={
+            lv: @s[5],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 4)
-          t={ lv: @s[4], status: :close }
+          t={
+            lv: @s[4],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 3) and hs[3]
-          t={ lv: @s[3], status: :close }
+          t={
+            lv: @s[3],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 2) and hs[2]
-          t={ lv: @s[2], status: :close }
+          t={
+            lv: @s[2],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 1) and hs[1]
-          t={ lv: @s[1], status: :close }
+          t={
+            lv: @s[1],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev==0)
-          t={ lv: @s[0], status: :close }
+          t={
+            lv: @s[0],
+            status: :close,
+          }
           ary << tags(t)
         end
       when 6
         if (lev <= 6)
-          t={ lv: @s[6], status: :close }
+          t={
+            lv: @s[6],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 5)
-          t={ lv: @s[5], status: :close }
+          t={
+            lv: @s[5],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 4)
-          t={ lv: @s[4], status: :close }
+          t={
+            lv: @s[4],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 3) and hs[3]
-          t={ lv: @s[3], status: :close }
+          t={
+            lv: @s[3],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 2) and hs[2]
-          t={ lv: @s[2], status: :close }
+          t={
+            lv: @s[2],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 1) and hs[1]
-          t={ lv: @s[1], status: :close }
+          t={
+            lv: @s[1],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev==0)
-          t={ lv: @s[0], status: :close }
+          t={
+            lv: @s[0],
+            status: :close,
+          }
           ary << tags(t)
         end
       end
diff --git a/lib/sisu/v5/ao_endnotes.rb b/lib/sisu/v5/ao_endnotes.rb
index a662370c..5517cd87 100644
--- a/lib/sisu/v5/ao_endnotes.rb
+++ b/lib/sisu/v5/ao_endnotes.rb
@@ -63,8 +63,12 @@
 module SiSU_AO_Endnotes
   class Endnotes
     def initialize(md,data,endnote_array=nil)
-      @md,@data,@endnote_array=md,data,endnote_array
-      @endnote_counter,@endnote_counter_asterisk,@endnote_counter_dag=1,1,1
+      @md,@data,@endnote_array=
+      md, data, endnote_array
+      @endnote_counter,
+        @endnote_counter_asterisk,
+        @endnote_counter_dag=
+        1,1,1
     end
     def endnotes
       data=@data
@@ -73,17 +77,20 @@ module SiSU_AO_Endnotes
       data.each do |dob|
                                                                                # manually numbered endnotes <!e(\d)!> <!e_(\d)!> -->
         if @md.opt.mod.inspect =~/--no-asterisk|--no-annotate/
-          dob.obj=dob.obj.gsub(/#{Mx[:en_b_o]}\s.+?#{Mx[:en_b_c]}/,'')
+          dob.obj=dob.obj.
+            gsub(/#{Mx[:en_b_o]}\s.+?#{Mx[:en_b_c]}/,'')
         end
         if @md.opt.mod.inspect =~/--no-dagger|--no-annotate/
-          dob.obj=dob.obj.gsub(/#{Mx[:en_b_o]}[+]\s.+?#{Mx[:en_b_c]}/,'')
+          dob.obj=dob.obj.
+            gsub(/#{Mx[:en_b_o]}[+]\s.+?#{Mx[:en_b_c]}/,'')
         end
         if (defined? dob.obj) \
         && (defined? dob.is) \
         && dob.is !=:code
           case dob.obj                                                         # auto-numbered endnotes <!e!> <!e_!> -->
           when /#{Mx[:en_a_o]}.+?#{Mx[:en_a_c]}|#{Mx[:en_b_o]}[*+]\s+.+?#{Mx[:en_b_c]}/
-            dob.obj=dob.obj.gsub(/\s*(#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/,'\1')
+            dob.obj=dob.obj.
+              gsub(/\s*(#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/,'\1')
             word_mode=dob.obj.scan(/\S+/m)
             word_mode=endnote_call_number(word_mode)
             dob.obj=word_mode.join(' ')
@@ -97,7 +104,10 @@ module SiSU_AO_Endnotes
         end
         @tuned_file << dob
       end
-      @endnote_counter,@endnote_counter_asterisk,@endnote_counter_dag=1,1,1
+      @endnote_counter,
+        @endnote_counter_asterisk,
+        @endnote_counter_dag=
+        1,1,1
       @tuned_file=@tuned_file.flatten
     end
     def endnote_call_number(words)
@@ -105,20 +115,24 @@ module SiSU_AO_Endnotes
         case word
         when /#{Mx[:en_a_o]}/
           unless word =~/#{Mx[:en_a_o]}[*+]+/
-            word.gsub!(/#{Mx[:en_a_o]}/,"#{Mx[:en_a_o]}#{@endnote_counter} ")
+            word.gsub!(/#{Mx[:en_a_o]}/,
+              "#{Mx[:en_a_o]}#{@endnote_counter} ")
             @endnote_counter+=1
           end
         when /#{Mx[:en_b_o]}/
           if word =~/#{Mx[:en_b_o]}[+]/
-            word.gsub!(/#{Mx[:en_b_o]}[+]/,"#{Mx[:en_b_o]}\+#{@endnote_counter_dag} ")
+            word.gsub!(/#{Mx[:en_b_o]}[+]/,
+              "#{Mx[:en_b_o]}\+#{@endnote_counter_dag} ")
             @endnote_counter_dag+=1
           else
-            word.gsub!(/#{Mx[:en_b_o]}[*]?/,"#{Mx[:en_b_o]}\*#{@endnote_counter_asterisk} ")
+            word.gsub!(/#{Mx[:en_b_o]}[*]?/,
+              "#{Mx[:en_b_o]}\*#{@endnote_counter_asterisk} ")
             @endnote_counter_asterisk+=1
           end
         when /~\^|<:e>/
           if @endnote_array
-            word.gsub!(/~\^|<:e>/,"#{@endnote_array[@endnote_counter-1]}")
+            word.gsub!(/~\^|<:e>/,
+              "#{@endnote_array[@endnote_counter-1]}")
             @endnote_counter+=1
           end
         end
diff --git a/lib/sisu/v5/ao_expand_insertions.rb b/lib/sisu/v5/ao_expand_insertions.rb
index ea499119..dce14ee4 100644
--- a/lib/sisu/v5/ao_expand_insertions.rb
+++ b/lib/sisu/v5/ao_expand_insertions.rb
@@ -77,33 +77,53 @@ module SiSU_AO_Insertions
       end
       file_type_names={}
       file_type_names[:gen],file_type_names[:src]=[],[]
-      file_type_names[:gen] <<= if cmd_list =~ /y/ then "~^ { document manifest }#{lnk[:manifest]}"
+      file_type_names[:gen] <<= if cmd_list =~ /y/
+        "~^ { document manifest }#{lnk[:manifest]}"
       end
-      file_type_names[:gen] <<= if cmd_list =~ /h/ then [" { html, segmented text }#{lnk[:html_toc]}"," { html, scroll, document in one }#{lnk[:html_doc]}"]
+      file_type_names[:gen] <<= if cmd_list =~ /h/
+        [
+          " { html, segmented text }#{lnk[:html_toc]}",
+          " { html, scroll, document in one }#{lnk[:html_doc]}",
+        ]
       end
-      file_type_names[:gen] <<= if cmd_list =~ /e/ then [" { epub }#{lnk[:epub]}"]
+      file_type_names[:gen] <<= if cmd_list =~ /e/
+        [" { epub }#{lnk[:epub]}"]
       end
-      file_type_names[:gen] <<= if cmd_list =~ /p/ then [" { pdf, landscape }#{lnk[:pdf_landscape]}"," { pdf, portrait }#{lnk[:pdf_portrait]}"]
+      file_type_names[:gen] <<= if cmd_list =~ /p/
+        [
+          " { pdf, landscape }#{lnk[:pdf_landscape]}",
+          " { pdf, portrait }#{lnk[:pdf_portrait]}",
+        ]
       end
-      file_type_names[:gen] <<= if cmd_list =~ /o/ then " { odf:odt, open document text }#{lnk[:odt]}"
+      file_type_names[:gen] <<= if cmd_list =~ /o/
+        " { odf:odt, open document text }#{lnk[:odt]}"
       end
-      file_type_names[:gen] <<= if cmd_list =~ /b/ then " { xhtml scroll }#{lnk[:xhtml]}"
+      file_type_names[:gen] <<= if cmd_list =~ /b/
+        " { xhtml scroll }#{lnk[:xhtml]}"
       end
-      file_type_names[:gen] <<= if cmd_list =~ /x/ then " { xml, sax }#{lnk[:xml_sax]}"
+      file_type_names[:gen] <<= if cmd_list =~ /x/
+        " { xml, sax }#{lnk[:xml_sax]}"
       end
-      file_type_names[:gen] <<= if cmd_list =~ /X/ then " { xml, dom }#{lnk[:xml_dom]}"
+      file_type_names[:gen] <<= if cmd_list =~ /X/
+        " { xml, dom }#{lnk[:xml_dom]}"
       end
-      file_type_names[:gen] <<= if cmd_list =~ /a/ then " { plain text utf-8 }#{lnk[:txt]}"
+      file_type_names[:gen] <<= if cmd_list =~ /a/
+        " { plain text utf-8 }#{lnk[:txt]}"
       end
-      file_type_names[:gen] <<= if cmd_list =~ /g/ then 'wiki.txt'
+      file_type_names[:gen] <<= if cmd_list =~ /g/
+        'wiki.txt'
       end
-      file_type_names[:gen] <<= if cmd_list =~ /w/ then " { concordance }#{lnk[:html_concordance]}"
+      file_type_names[:gen] <<= if cmd_list =~ /w/
+        " { concordance }#{lnk[:html_concordance]}"
       end
-      file_type_names[:gen] <<= if cmd_list =~ /N/ then " { dcc, document content certificate (digests) }#{lnk[:digest]}"
+      file_type_names[:gen] <<= if cmd_list =~ /N/
+        " { dcc, document content certificate (digests) }#{lnk[:digest]}"
       end
-      file_type_names[:src] <<= if source and cmd_shortcut =~ /s/ then " { markup source text }#{lnk[:source]}"
+      file_type_names[:src] <<= if source and cmd_shortcut =~ /s/
+        " { markup source text }#{lnk[:source]}"
       end
-      file_type_names[:src] <<= if cmd_shortcut =~ /S/ then " { markup source (zipped) pod }#{lnk[:sisupod]}"
+      file_type_names[:src] <<= if cmd_shortcut =~ /S/
+        " { markup source (zipped) pod }#{lnk[:sisupod]}"
       end
       file_type_names[:gen]=file_type_names[:gen].flatten
       file_type_names[:src]=file_type_names[:src].flatten
@@ -333,7 +353,7 @@ module SiSU_AO_Insertions
       tuned_file,tuned_file_tmp=[],[]
       codeblock_=false
       data.each do |para|
-        codeblock_=if para =~/^(?:code\{|```[ ]+code)/
+        codeblock_=if para =~/^(?:code(?:\.[a-z][0-9a-z_]+)?\{|```[ ]+code(?:\.[a-z][0-9a-z_]+)?)/
           true
         elsif para =~/^(?:\}code|```(?:\s|$))/m
           false
diff --git a/lib/sisu/v5/ao_hash_digest.rb b/lib/sisu/v5/ao_hash_digest.rb
index 1c20671f..6675474c 100644
--- a/lib/sisu/v5/ao_hash_digest.rb
+++ b/lib/sisu/v5/ao_hash_digest.rb
@@ -85,8 +85,8 @@ module SiSU_AO_Hash
           t_o.obj=t_o.obj.strip
         end
         if (t_o.of !=:structure \
-        && t_o.of !=:comment \
-        && t_o.of !=:layout) \
+        && t_o.of  !=:comment \
+        && t_o.of  !=:layout) \
         && t_o.ocn.is_a?(Fixnum)
           case sha_
           when :sha512
@@ -114,7 +114,9 @@ module SiSU_AO_Hash
         t_o_bit <<= case en_plus
         when /#{Mx[:en_a_o]}|#{Mx[:en_b_o]}/
           if en_plus =~/#{Mx[:en_a_o]}.+?#{Mx[:en_a_c]}|#{Mx[:en_b_o]}.+?#{Mx[:en_b_c]}/
-            t_o_txt,en_open,en_txt,en_close=/(.*?)(#{Mx[:en_a_o]}|#{Mx[:en_b_o]})(.+?)(#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/m.match(en_plus)[1..4]
+            t_o_txt,en_open,en_txt,en_close=
+              /(.*?)(#{Mx[:en_a_o]}|#{Mx[:en_b_o]})(.+?)(#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/m.
+              match(en_plus)[1..4]
             stripped_en=SiSU_TextRepresentation::Alter.new(en_txt).strip_clean_of_markup
             digest_en_strip=case @env.digest(@md.opt).type
             when :sha512
@@ -126,7 +128,13 @@ module SiSU_AO_Hash
             else
               Digest::SHA256.hexdigest(stripped_en)
             end
-            t_o_txt + en_open + en_txt + Mx[:id_o] + digest_en_strip + Mx[:id_c] + en_close
+            t_o_txt +
+              en_open +
+              en_txt +
+              Mx[:id_o] +
+              digest_en_strip +
+              Mx[:id_c] +
+              en_close
           else STDERR.puts "Error Exception - problem encountered with:\n#{en_plus}" #arbitrary exception, tidy up
           end
         else en_plus
@@ -143,8 +151,10 @@ module SiSU_AO_Hash
         case t_o.obj
         when /#{Mx[:en_a_o]}[\d*+]+\s+.+?#{Mx[:en_a_c]}|#{Mx[:en_b_o]}[*+]\d+\s+.+?#{Mx[:en_b_c]}/m
           en_and_t_o_digest=[]
-          t_o.obj=t_o.obj.gsub(/\s*(#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/m,' \1') #watch
-          t_o_plus_en=t_o.obj.scan(/.*?#{Mx[:en_a_o]}.+?#{Mx[:en_a_c]}|.*?#{Mx[:en_b_o]}.+?#{Mx[:en_b_c]}/m)
+          t_o.obj=t_o.obj.
+            gsub(/\s*(#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/m,' \1') #watch
+          t_o_plus_en=t_o.obj.
+            scan(/.*?#{Mx[:en_a_o]}.+?#{Mx[:en_a_c]}|.*?#{Mx[:en_b_o]}.+?#{Mx[:en_b_c]}/m)
           t_o_tail=if t_o.obj =~/(?:.*?#{Mx[:en_a_o]}.+?#{Mx[:en_a_c]}|.*?#{Mx[:en_b_o]}.+?#{Mx[:en_b_c]})+([\s\S]+)/m
             /(?:.*?#{Mx[:en_a_o]}.+?#{Mx[:en_a_c]}|.*?#{Mx[:en_b_o]}.+?#{Mx[:en_b_c]})+.*/m.match(t_o.obj)[1]
           else ''
diff --git a/lib/sisu/v5/ao_idx.rb b/lib/sisu/v5/ao_idx.rb
index 43d5aeda..c0dba12a 100644
--- a/lib/sisu/v5/ao_idx.rb
+++ b/lib/sisu/v5/ao_idx.rb
@@ -67,14 +67,26 @@ module SiSU_AO_BookIndex
       @rgx_idx=/#{Mx[:idx_o]}(?:.+?)#{Mx[:idx_c]}\s*/
       @rgx_idx_ocn_seg=/(.+?)~(\d+)~(\S+)/
       @rgx_idx_ocn=/(.+?)~(\d+)/
-      @ocn_html_identifier=SiSU_Env::ProcessingSettings.new(@md).ocn_html_identifier
+      @ocn_html_identifier=
+        SiSU_Env::ProcessingSettings.new(@md).ocn_html_identifier
       @env ||=SiSU_Env::InfoEnv.new(@md.fns)
     end
     def indexing_song
       data=@data
-      data,sisu_markup_idx_rel,sisu_markup_idx_rel_html_seg,html_idx,xhtml_idx=extract_book_index(data)
-      data=clean_and_insert_index(data,sisu_markup_idx_rel_html_seg)
-      [data,sisu_markup_idx_rel,sisu_markup_idx_rel_html_seg,html_idx,xhtml_idx]
+      data,
+        sisu_markup_idx_rel,
+        sisu_markup_idx_rel_html_seg,
+        html_idx,xhtml_idx=
+          extract_book_index(data)
+      data=
+        clean_and_insert_index(data,sisu_markup_idx_rel_html_seg)
+      [
+        data,
+        sisu_markup_idx_rel,
+        sisu_markup_idx_rel_html_seg,
+        html_idx,
+        xhtml_idx,
+      ]
     end
     def extract_book_index(data)
       tuned_file=[]
@@ -93,13 +105,25 @@ module SiSU_AO_BookIndex
       end
       if idx_array.length > 0
         the_idx=construct_book_index(idx_array)
-        sisu_markup_idx_rel,sisu_markup_idx_rel_html_seg,html_idx,xhtml_idx=nil,nil,nil,nil
         if @md.book_idx
           idx=index(the_idx)
-          sisu_markup_idx_rel,sisu_markup_idx_rel_html_seg,html_idx,xhtml_idx=idx[:sst_rel],idx[:sst_rel_html_seg],idx[:html],idx[:xhtml]
+          sisu_markup_idx_rel,sisu_markup_idx_rel_html_seg,html_idx,  xhtml_idx=
+            idx[:sst_rel],    idx[:sst_rel_html_seg],      idx[:html],idx[:xhtml]
+        else
+          sisu_markup_idx_rel=
+            sisu_markup_idx_rel_html_seg=
+            html_idx=
+            xhtml_idx=
+            nil
         end
       end
-      [tuned_file,sisu_markup_idx_rel,sisu_markup_idx_rel_html_seg,html_idx,xhtml_idx]
+      [
+        tuned_file,
+        sisu_markup_idx_rel,
+        sisu_markup_idx_rel_html_seg,
+        html_idx,
+        xhtml_idx,
+      ]
     end
     def construct_book_index(idx_array)
       the_idx={}
@@ -108,8 +132,12 @@ module SiSU_AO_BookIndex
           location=(term_info[:plus].to_i > 0) \
           ? (%{#{idx[:ocn]}-#{idx[:ocn].to_i + term_info[:plus].to_i}})
           : idx[:ocn].to_s
-          the_idx[term]={} unless the_idx[term] and defined? the_idx[term]
-          the_idx[term]['node_0_terms']=[] unless the_idx[term]['node_0_terms'] and defined? the_idx[term]['node_0_terms']
+          the_idx[term]={} \
+            unless the_idx[term] \
+            and defined? the_idx[term]
+          the_idx[term]['node_0_terms']=[] \
+            unless the_idx[term]['node_0_terms'] \
+            and defined? the_idx[term]['node_0_terms']
           the_idx[term]['node_0_terms'] << { ocn: idx[:ocn], range: location, seg: idx[:seg] }
           if term_info[:sub].is_a?(Array) \
           and term_info[:sub].length > 0
@@ -118,11 +146,20 @@ module SiSU_AO_BookIndex
                 location=(subterm_info[:plus].to_i > 0) \
                 ? (%{#{idx[:ocn]}-#{idx[:ocn].to_i + subterm_info[:plus].to_i}})
                 : idx[:ocn].to_s
-                the_idx[term]={} unless the_idx[term] and defined? the_idx[term]
-                the_idx[term]['node_0_terms']=[] unless the_idx[term]['node_0_terms'] and defined? the_idx[term]['node_0_terms']
-                the_idx[term]['node_1_subterms']={} unless the_idx[term]['node_1_subterms'] and defined? the_idx[term]['node_1_subterms']
-                the_idx[term]['node_1_subterms'][subterm]=[] unless the_idx[term]['node_1_subterms'][subterm] and defined? the_idx[term]['node_1_subterms'][subterm]
-                the_idx[term]['node_1_subterms'][subterm] << { ocn: idx[:ocn], range: location, seg: idx[:seg] }
+                the_idx[term]={} \
+                  unless the_idx[term] \
+                  and defined? the_idx[term]
+                the_idx[term]['node_0_terms']=[] \
+                  unless the_idx[term]['node_0_terms']\
+                  and    defined? the_idx[term]['node_0_terms']
+                the_idx[term]['node_1_subterms']={} \
+                  unless the_idx[term]['node_1_subterms'] \
+                  and defined? the_idx[term]['node_1_subterms']
+                the_idx[term]['node_1_subterms'][subterm]=[] \
+                  unless the_idx[term]['node_1_subterms'][subterm] \
+                  and defined? the_idx[term]['node_1_subterms'][subterm]
+                the_idx[term]['node_1_subterms'][subterm] <<
+                  { ocn: idx[:ocn], range: location, seg: idx[:seg] }
               end
             end
           end
@@ -138,16 +175,27 @@ module SiSU_AO_BookIndex
     def index(the_idx)
       @x=1
       idx={}
-      idx[:sst_rel_html_seg],idx[:sst_rel],idx[:html],idx[:xhtml]=[],[],[],[]
-      h={obj: Mx[:br_page]}
+      idx[:sst_rel_html_seg],idx[:sst_rel],idx[:html],idx[:xhtml]=
+        [],                  [],           [],        []
+      h={
+        obj: Mx[:br_page]
+      }
       o=SiSU_AO_DocumentStructure::ObjectLayout.new.break(h)
       idx[:sst_rel_html_seg] << o
       idx[:sst_rel] << o
-      h={lv: '1', name: 'index', obj: "Index"}
+      h={
+        lv: '1',
+        name: 'index',
+        obj: "Index"
+      }
       o=SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
       idx[:sst_rel_html_seg] << o
       idx[:sst_rel] << o
-      h={lv: '4', name: 'idx', obj: " [Index] #{Mx[:pa_non_object_dummy_heading]}"}
+      h={
+        lv: '4',
+        name: 'idx',
+        obj: " [Index] #{Mx[:pa_non_object_dummy_heading]}"
+      }
       o=SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
       idx[:sst_rel_html_seg] << o
       idx[:sst_rel] << o
@@ -159,15 +207,19 @@ module SiSU_AO_BookIndex
           idx[:html] << ''
           idx[:xhtml] << ''
         else
-          idx[:html] << %{<a href="##{x}">#{x}</a>,#{$ep[:hsp]}}
-          idx[:xhtml] << %{<a href="##{x.downcase}">#{x}</a>,#{$ep[:hsp]}}
+          idx[:html] <<
+            %{<a href="##{x}">#{x}</a>,#{$ep[:hsp]}}
+          idx[:xhtml] <<
+            %{<a href="##{x.downcase}">#{x}</a>,#{$ep[:hsp]}}
         end
       end
       idx[:html] << '</p>'
       idx[:xhtml] << '</p>'
       letter=alph.shift
-      idx[:html] << %{\n<p class="book_index_lev1"><a name="numeral"></a></p>}
-      idx[:xhtml] << %{\n<p class="letter" id="numeral">0 - 9</p>}
+      idx[:html] <<
+        %{\n<p class="book_index_lev1"><a name="numeral"></a></p>}
+      idx[:xhtml] <<
+        %{\n<p class="letter" id="numeral">0 - 9</p>}
       the_idx.each do |i|
         i.each do |x|
           if x.is_a?(String)
@@ -176,18 +228,24 @@ module SiSU_AO_BookIndex
               while letter < f
                 if alph.length > 0
                   letter=alph.shift
-                  idx[:html] << %{\n<p class="letter"><a name="#{letter}">#{letter}</a></p><p class="book_index_lev1"><a name="#{letter.downcase}"> </a></p>}
-                  idx[:xhtml] << %{\n<p class="letter" id="#{letter.downcase}">#{letter}</p>}
+                  idx[:html] <<
+                    %{\n<p class="letter"><a name="#{letter}">#{letter}</a></p><p class="book_index_lev1"><a name="#{letter.downcase}"> </a></p>}
+                  idx[:xhtml] <<
+                    %{\n<p class="letter" id="#{letter.downcase}">#{letter}</p>}
                 else break
                 end
               end
             end
-            idx[:sst_rel_html_seg] << %{\n\n#{Mx[:fa_bold_o]}#{x},#{Mx[:fa_bold_c]} }
-            idx[:sst_rel] << %{\n\n#{Mx[:fa_bold_o]}#{x},#{Mx[:fa_bold_c]} }
+            idx[:sst_rel_html_seg] <<
+              %{\n\n#{Mx[:fa_bold_o]}#{x},#{Mx[:fa_bold_c]} }
+            idx[:sst_rel] <<
+              %{\n\n#{Mx[:fa_bold_o]}#{x},#{Mx[:fa_bold_c]} }
             aname=x.gsub(/\s+/,'_')
-            idx[:html] << %{\n<p class="book_index_lev1"><a name="#{aname}"><b>#{x}</b></a>, }
+            idx[:html] <<
+              %{\n<p class="book_index_lev1"><a name="#{aname}"><b>#{x}</b></a>, }
             c=clean_xml(x.dup)
-            idx[:xhtml] << %{\n<p class="book_index_lev1"><b>#{c}</b>, }
+            idx[:xhtml] <<
+              %{\n<p class="book_index_lev1"><b>#{c}</b>, }
             @o=idx[:sst_rel_html_seg].index(idx[:sst_rel_html_seg].last)
             @t=idx[:sst_rel].index(idx[:sst_rel].last)
             @q=idx[:html].index(idx[:html].last)
@@ -200,16 +258,32 @@ module SiSU_AO_BookIndex
             if x['node_0_terms'].is_a?(Array)
               x['node_0_terms'].each do |a|
                 if a[:range]
-                  idx[:sst_rel_html_seg][@o]=idx[:sst_rel_html_seg][@o] + %{#{Mx[:lnk_o]}#{a[:range]}#{Mx[:lnk_c]}#{Mx[:rel_o]}/#{a[:seg]}.html##{@ocn_html_identifier}#{a[:ocn]}#{Mx[:rel_c]}, }
-                  idx[:sst_rel][@t]=idx[:sst_rel][@t] + %{#{Mx[:lnk_o]}#{a[:range]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{a[:ocn]}#{Mx[:rel_c]}, }
-                  idx[:html][@q]=idx[:html][@q] + %{<a href="#{a[:seg]}.html##{@ocn_html_identifier}#{a[:ocn]}">#{a[:range]}</a>, }
-                  idx[:xhtml][@q]=idx[:xhtml][@q] + %{<a href="#{a[:seg]}.xhtml#o#{a[:ocn]}">#{a[:range]}</a>, }
+                  idx[:sst_rel_html_seg][@o]=
+                    idx[:sst_rel_html_seg][@o] +
+                    %{#{Mx[:lnk_o]}#{a[:range]}#{Mx[:lnk_c]}#{Mx[:rel_o]}/#{a[:seg]}.html##{@ocn_html_identifier}#{a[:ocn]}#{Mx[:rel_c]}, }
+                  idx[:sst_rel][@t]=
+                    idx[:sst_rel][@t] +
+                    %{#{Mx[:lnk_o]}#{a[:range]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{a[:ocn]}#{Mx[:rel_c]}, }
+                  idx[:html][@q]=
+                    idx[:html][@q] +
+                    %{<a href="#{a[:seg]}.html##{@ocn_html_identifier}#{a[:ocn]}">#{a[:range]}</a>, }
+                  idx[:xhtml][@q]=
+                    idx[:xhtml][@q] +
+                    %{<a href="#{a[:seg]}.xhtml#o#{a[:ocn]}">#{a[:range]}</a>, }
                   print a[:range] + ', ' if @md.opt.act[:verbose_plus][:set]==:on
                 elsif a[:ocn]
-                  idx[:sst_rel_html_seg][@o]=idx[:sst_rel_html_seg][@o] + %{#{Mx[:lnk_o]}#{a[:ocn]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{a[:seg]}.html##{@ocn_html_identifier}#{a[:ocn]}#{Mx[:rel_c]}, }
-                  idx[:sst_rel][@t]=idx[:sst_rel][@t] + %{#{Mx[:lnk_o]}#{a[:ocn]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{a[:ocn]}#{Mx[:rel_c]}, }
-                  idx[:html][@q]=idx[:html][@q] + %{<a href="#{a[:seg]}.html##{@ocn_html_identifier}#{a[:ocn]}">#{a[:ocn]}</a>, }
-                  idx[:xhtml][@q]=idx[:xhtml][@q] + %{<a href="#{a[:seg]}.xhtml#o#{a[:ocn]}">#{a[:ocn]}</a>, }
+                  idx[:sst_rel_html_seg][@o]=
+                    idx[:sst_rel_html_seg][@o] +
+                    %{#{Mx[:lnk_o]}#{a[:ocn]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{a[:seg]}.html##{@ocn_html_identifier}#{a[:ocn]}#{Mx[:rel_c]}, }
+                  idx[:sst_rel][@t]=
+                    idx[:sst_rel][@t] +
+                    %{#{Mx[:lnk_o]}#{a[:ocn]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{a[:ocn]}#{Mx[:rel_c]}, }
+                  idx[:html][@q]=
+                    idx[:html][@q] +
+                    %{<a href="#{a[:seg]}.html##{@ocn_html_identifier}#{a[:ocn]}">#{a[:ocn]}</a>, }
+                  idx[:xhtml][@q]=
+                    idx[:xhtml][@q] +
+                    %{<a href="#{a[:seg]}.xhtml#o#{a[:ocn]}">#{a[:ocn]}</a>, }
                   print a[:ocn] + ', ' if @md.opt.act[:verbose_plus][:set]==:on
                 else p 'error'
                 end
@@ -220,24 +294,48 @@ module SiSU_AO_BookIndex
             if x['node_1_subterms']
              x['node_1_subterms'].sort.each do |k,y|
                 if k !~/node_0_terms/
-                  idx[:sst_rel_html_seg][@o]=idx[:sst_rel_html_seg][@o] + %{#{k}, }
-                  idx[:sst_rel][@t]=idx[:sst_rel][@t] + %{#{k}, }
-                  idx[:html][@q]=idx[:html][@q] + %{\n<p class="book_index_lev2">#{k}, }
+                  idx[:sst_rel_html_seg][@o]=
+                    idx[:sst_rel_html_seg][@o] +
+                    %{#{k}, }
+                  idx[:sst_rel][@t]=
+                    idx[:sst_rel][@t] +
+                    %{#{k}, }
+                  idx[:html][@q]=
+                    idx[:html][@q] +
+                    %{\n<p class="book_index_lev2">#{k}, }
                   c=clean_xml(k.dup)
-                  idx[:xhtml][@r]=idx[:xhtml][@r] + %{\n<p class="book_index_lev2">#{c}, }
+                  idx[:xhtml][@r]=
+                    idx[:xhtml][@r] +
+                    %{\n<p class="book_index_lev2">#{c}, }
                   print "\n\t" + k + ', ' if @md.opt.act[:verbose_plus][:set]==:on
                   y.each do |z|
                     if z[:range]
-                      idx[:sst_rel_html_seg][@o]=idx[:sst_rel_html_seg][@o] + %{#{Mx[:lnk_o]}#{z[:range]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{z[:seg]}.html##{@ocn_html_identifier}#{z[:ocn]}#{Mx[:rel_c]}, }
-                      idx[:sst_rel][@t]=idx[:sst_rel][@t] + %{#{Mx[:lnk_o]}#{z[:range]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{z[:ocn]}#{Mx[:rel_c]}, }
-                      idx[:html][@q]=idx[:html][@q] + %{<a href="#{z[:seg]}.html##{@ocn_html_identifier}#{z[:ocn]}">#{z[:range]}</a>, }
-                      idx[:xhtml][@q]=idx[:xhtml][@q] + %{<a href="#{z[:seg]}.xhtml#o#{z[:ocn]}">#{z[:range]}</a>, }
+                      idx[:sst_rel_html_seg][@o]=
+                        idx[:sst_rel_html_seg][@o] +
+                        %{#{Mx[:lnk_o]}#{z[:range]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{z[:seg]}.html##{@ocn_html_identifier}#{z[:ocn]}#{Mx[:rel_c]}, }
+                      idx[:sst_rel][@t]=
+                        idx[:sst_rel][@t] +
+                        %{#{Mx[:lnk_o]}#{z[:range]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{z[:ocn]}#{Mx[:rel_c]}, }
+                      idx[:html][@q]=
+                        idx[:html][@q] +
+                        %{<a href="#{z[:seg]}.html##{@ocn_html_identifier}#{z[:ocn]}">#{z[:range]}</a>, }
+                      idx[:xhtml][@q]=
+                        idx[:xhtml][@q] +
+                        %{<a href="#{z[:seg]}.xhtml#o#{z[:ocn]}">#{z[:range]}</a>, }
                       print z[:range] + ', ' if @md.opt.act[:verbose_plus][:set]==:on
                     elsif z[:ocn]
-                      idx[:sst_rel_html_seg][@o]=idx[:sst_rel_html_seg][@o] + %{#{Mx[:lnk_o]}#{z[:ocn]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{z[:seg]}.html##{@ocn_html_identifier}#{z[:ocn]}#{Mx[:rel_c]}, }
-                      idx[:sst_rel][@t]=idx[:sst_rel][@t] + %{#{Mx[:lnk_o]}#{z[:ocn]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{z[:ocn]}#{Mx[:rel_c]}, }
-                      idx[:html][@q]=idx[:html][@q] + %{<a href="#{z[:seg]}.html##{@ocn_html_identifier}#{z[:ocn]}">#{z[:ocn]}</a>, }
-                      idx[:xhtml][@q]=idx[:xhtml][@q] + %{<a href="#{z[:seg]}.xhtml#o#{z[:ocn]}">#{z[:ocn]}</a>, }
+                      idx[:sst_rel_html_seg][@o]=
+                        idx[:sst_rel_html_seg][@o] +
+                        %{#{Mx[:lnk_o]}#{z[:ocn]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{z[:seg]}.html##{@ocn_html_identifier}#{z[:ocn]}#{Mx[:rel_c]}, }
+                      idx[:sst_rel][@t]=
+                        idx[:sst_rel][@t] +
+                        %{#{Mx[:lnk_o]}#{z[:ocn]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{z[:ocn]}#{Mx[:rel_c]}, }
+                      idx[:html][@q]=
+                        idx[:html][@q] +
+                        %{<a href="#{z[:seg]}.html##{@ocn_html_identifier}#{z[:ocn]}">#{z[:ocn]}</a>, }
+                      idx[:xhtml][@q]=
+                        idx[:xhtml][@q] +
+                        %{<a href="#{z[:seg]}.xhtml#o#{z[:ocn]}">#{z[:ocn]}</a>, }
                       print z[:ocn] + ', ' if @md.opt.act[:verbose_plus][:set]==:on
                     else p 'error'
                     end
diff --git a/lib/sisu/v5/ao_images.rb b/lib/sisu/v5/ao_images.rb
index 8eee4b57..dce92fc5 100644
--- a/lib/sisu/v5/ao_images.rb
+++ b/lib/sisu/v5/ao_images.rb
@@ -85,7 +85,10 @@ module SiSU_AO_Images
       else
         if (@md.opt.act[:verbose_plus][:set]==:on \
         || @md.opt.act[:maintenance][:set]==:on)
-          SiSU_Screen::Ansi.new(@md.opt.act[:color_state][:set],'*WARN* use of RMagick is not enabled in sisurc.yml').warn
+          SiSU_Screen::Ansi.new(
+            @md.opt.act[:color_state][:set],
+            '*WARN* use of RMagick is not enabled in sisurc.yml'
+          ).warn
         end
       end
       data.each do |dob|
@@ -99,7 +102,11 @@ module SiSU_AO_Images
                 img_col=img_row=nil
                 images=imgs.each do |image|
                   dir=SiSU_Env::InfoEnv.new(@md.fns)
-                  path_image=[dir.path.image_source_include_local,dir.path.image_source_include_remote,dir.path.image_source_include]
+                  path_image=[
+                    dir.path.image_source_include_local,
+                    dir.path.image_source_include_remote,
+                    dir.path.image_source_include
+                  ]
                   image_path=nil
                   path_image.each do |img_pth|
                     image_path=img_pth
@@ -112,7 +119,10 @@ module SiSU_AO_Images
                     else
                       if (@md.opt.act[:verbose_plus][:set]==:on \
                       || @md.opt.act[:maintenance][:set]==:on)
-                        SiSU_Screen::Ansi.new(@md.opt.act[:color_state][:set],'*WARN* RMagick not present, will attempt to use imagemagick (identify) directly').warn
+                        SiSU_Screen::Ansi.new(
+                          @md.opt.act[:color_state][:set],
+                          '*WARN* RMagick not present, will attempt to use imagemagick (identify) directly'
+                        ).warn
                       end
                       imgk=SiSU_Env::SystemCall.new.imagemagick
                       gmgk=SiSU_Env::SystemCall.new.graphicksmagick
@@ -144,12 +154,18 @@ module SiSU_AO_Images
                       end
                     end
                     dob.obj=dob.obj.gsub(/(#{image})/,"#{image} #{img_col}x#{img_row}")
-                  else dob.obj=dob.obj.gsub(/#{Mx[:lnk_o]}\s*(\S+)\.(png|jpg|gif).+?#{Mx[:lnk_c]}(#{Mx[:url_o]}\S+?#{Mx[:url_c]}|image)/,'[ \1 (\2 missing) ]')
+                  else
+                    dob.obj=dob.obj.
+                      gsub(/#{Mx[:lnk_o]}\s*(\S+)\.(png|jpg|gif).+?#{Mx[:lnk_c]}(#{Mx[:url_o]}\S+?#{Mx[:url_c]}|image)/,
+                        '[ \1 (\2 missing) ]')
                   end
                 end
               else
                 images=dob.obj.scan(m) do |image|
-                  SiSU_Screen::Ansi.new(@md.opt.act[:color_state][:set],'*WARN* where image dimensions have not been provided RMagick or imagemagick is required',image).warn unless @md.opt.act[:quiet][:set]==:on
+                  SiSU_Screen::Ansi.new(
+                    @md.opt.act[:color_state][:set],
+                    '*WARN* where image dimensions have not been provided RMagick or imagemagick is required',image
+                  ).warn unless @md.opt.act[:quiet][:set]==:on
                 end
               end
             end
diff --git a/lib/sisu/v5/ao_metadata.rb b/lib/sisu/v5/ao_metadata.rb
index c51c40dc..a4f8fcc2 100644
--- a/lib/sisu/v5/ao_metadata.rb
+++ b/lib/sisu/v5/ao_metadata.rb
@@ -69,11 +69,20 @@ module SiSU_AO_Metadata
       @tr=SiSU_Translate::Source.new(md,language)
     end
     def make_para(obj,ocn)
-      h={ obj: obj, ocn: 0 }
+      h={
+        obj: obj,
+        ocn: 0
+      }
       SiSU_AO_DocumentStructure::ObjectPara.new.paragraph(h)
     end
     def make_heading(obj,ocn,name,lv,ln)
-      h={ lv: lv, ln: ln, name: name, obj: obj, ocn: 0 }
+      h={
+        lv: lv,
+        ln: ln,
+        name: name,
+        obj: obj,
+        ocn: 0
+      }
       SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
     end
     def metadata
diff --git a/lib/sisu/v5/ao_misc_arrange.rb b/lib/sisu/v5/ao_misc_arrange.rb
index 419241e1..09842fcc 100644
--- a/lib/sisu/v5/ao_misc_arrange.rb
+++ b/lib/sisu/v5/ao_misc_arrange.rb
@@ -66,25 +66,30 @@ module SiSU_AO_MiscArrangeText
       @md,@data=md,data
     end
     def conditional_headings(para)
-      para=para.gsub(/^(:?A~)\s*$/,'\1~ @title @author').                                    #conditional header
-        gsub(/^((?:[1-9]|:?[A-D])~\S*)\s*$/,'\1~ [Note: heading marker::required title missing]~#')    #conditional header for incorporated document 2004w12
+      para=para.gsub(/^(:?A~)\s*$/,'\1~ @title @author').            #conditional header
+        gsub(/^((?:[1-9]|:?[A-D])~\S*)\s*$/,
+          '\1~ [Note: heading marker::required title missing]~#')    #conditional header for incorporated document 2004w12
       if para =~/^@\S+?:/
-        para=para.gsub(/^@(\S+?):(\s+|$)/,"#{Mx[:meta_o]}\\1#{Mx[:meta_c]}\\2").
-          gsub(/^@(\S+?):([+-])(\s+|$)/,"#{Mx[:meta_o]}\\1\\2#{Mx[:meta_c]}\\3")
+        para=para.gsub(/^@(\S+?):(\s+|$)/,
+            "#{Mx[:meta_o]}\\1#{Mx[:meta_c]}\\2").
+          gsub(/^@(\S+?):([+-])(\s+|$)/,
+            "#{Mx[:meta_o]}\\1\\2#{Mx[:meta_c]}\\3")
       end
       para
     end
     def markup_blocks(para)
       def ticks(para)
         block_open,block_close,text=nil,nil,nil
-        if para =~/\A```[ ]+(?:code|poem|alt|group|block|table).*?\n.+?\n```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*\Z/m
+        if para =~/\A```[ ]+(?:code(?:\.[a-z][0-9a-z_]+)?|box(?:\.[a-z_]+)?|poem|alt|group|block|table).*?\n.+?\n```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*\Z/m
           @flag=:close
-          block_open,text,block_close=/\A(```[ ]+(?:code|poem|alt|group|block|table).*?)\n(.+?)\n(```([ ]+[~-][#]|\s+\~\{.+?\}\~)?)\s*\Z/m.match(para)[1..3]
+          block_open,text,block_close=
+            /\A(```[ ]+(?:code(?:\.[a-z][0-9a-z_]+)?|box(?:\.[a-z_]+)?|poem|alt|group|block|table).*?)\n(.+?)\n(```([ ]+[~-][#]|\s+\~\{.+?\}\~)?)\s*\Z/m.
+            match(para)[1..3]
           ((para=~/^```[ ]+table(?:~h)?\s+/) \
           and (para !~/^```[ ]+table(?:~h)?\s+c\d+/)) \
           ? para
           : (para=[]; para << block_open << text << block_close)
-        elsif para =~/\A```[ ]+(?:code|poem|alt|group|block|table).*?\n.*?\Z/m #look at, study
+        elsif para =~/\A```[ ]+(?:code(?:\.[a-z][0-9a-z_]+)?|box(?:\.[a-z_]+)?|poem|alt|group|block|table).*?\n.*?\Z/m #look at, study
           @flag=:open
           block_open,text=/\A(```(?:[ ]+.+?))\n(.*?)\Z/m.match(para)[1,2]
           para=[]
@@ -96,7 +101,8 @@ module SiSU_AO_MiscArrangeText
         elsif para =~/\A.+?\n```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*\Z/m \
         and @flag==:open
           @flag=:close
-          text,block_close=/\A(.+?)\n(```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?)\s*\Z/m.match(para)[1,2]
+          text,block_close=
+            /\A(.+?)\n(```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?)\s*\Z/m.match(para)[1,2]
           para=[]
           if not text.to_s.empty?
             para << text.to_s << block_close
@@ -109,28 +115,56 @@ module SiSU_AO_MiscArrangeText
       end
       def ticks_remove(para)
         unless @md.opt.act[:quiet][:set] ==:on
-          SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).mark("ticks not recognized, ticks removed from pargraph\n#{para}")
+          SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).
+           mark("ticks not recognized, ticks removed from pargraph\n#{para}")
         end
         para=para.gsub(/```[ ]+\S+[ ]*/m,'').
           gsub(/```\s*/m,'').
           strip
       end
+      def ticks_quote(para)
+        @flag=:quote_open
+        text=para
+        para=[]
+        if text =~ /```[ ]+quote/m
+          para << '`:quote_open`'
+          text=text.gsub(/```[ ]+quote/m,'')
+        end
+        text=if text =~/(?:\n|\A)=\{.+?\}/m                               #exclude book index from indent markup
+          txt,bkidx,tail=/(.+?)((?:\n|\A)=\{.+?\}$)(.*)/m.match(text).captures
+          txt=txt.gsub(/(?:\n|\A)([^`\n]+)/m,'_1 \1')
+          txt + bkidx + tail
+        else text.gsub(/(?:\n|\A)([^`\n]+)/m,'_1 \1')
+        end
+        para << text.gsub(/```/m,'')
+        if text =~/```/m
+          @flag=:quote_close
+          para << '`:quote_close`'
+        end
+        para
+      end
       def curly_braces(para)
         block_open,block_close,text=nil,nil,nil
-        para=if para =~/\A(?:code|poem|alt|group|block|table)\{ .+?\n.+?\n\}(?:code|poem|alt|group|block|table)(?: [~-][#])?\s*\Z/m
-          block_open,text,block_close=/\A((?:code|poem|alt|group|block|table)\{ .+?)\n(.+?)\n(\}(?:code|poem|alt|group|block|table)(?: [~-][#])?)\s*\Z/m.match(para)[1..3]
+        para=if para =~/\A(?:code(?:\.[a-z][0-9a-z_]+)?|box(?:\.[a-z_]+)?|poem|alt|group|block|table)\{ .+?\n.+?\n\}(?:code|box|poem|alt|group|block|table)(?: [~-][#])?\s*\Z/m
+          block_open,text,block_close=
+            /\A((?:code(?:\.[a-z][0-9a-z_]+)?|box(?:\.[a-z_]+)?|poem|alt|group|block|table)\{ .+?)\n(.+?)\n(\}(?:code|box|poem|alt|group|block|table)(?: [~-][#])?)\s*\Z/m.
+            match(para)[1..3]
           para=[]
           para << block_open << text << block_close
-        elsif para =~/\A(?:code|poem|alt|group|block|table)\{ .+?\n.+?\Z/m
-          block_open,text=/\A((?:code|poem|alt|group|block|table)\{ .+?)\n(.+?)\Z/m.match(para)[1,2]
+        elsif para =~/\A(?:code(?:\.[a-z][0-9a-z_]+)?|box(?:\.[a-z_]+)?|poem|alt|group|block|table)\{ .+?\n.+?\Z/m
+          block_open,text=
+            /\A((?:code(?:\.[a-z][0-9a-z_]+)?|box(?:\.[a-z_]+)?|poem|alt|group|block|table)\{ .+?)\n(.+?)\Z/m.
+            match(para)[1,2]
           para=[]
           if not text.to_s.empty?
             para << block_open << text
           else
             para << block_open
           end
-        elsif para =~/\A.+?\n\}(?:code|poem|alt|group|block|table)(?: [~-][#])?\s*\Z/m
-          text,block_close=/\A(.+?)\n(\}(?:code|poem|alt|group|block|table)(?: [~-][#])?)\s*\Z/m.match(para)[1,2]
+        elsif para =~/\A.+?\n\}(?:code|box|poem|alt|group|block|table)(?: [~-][#])?\s*\Z/m
+          text,block_close=
+            /\A(.+?)\n(\}(?:code|box|poem|alt|group|block|table)(?: [~-][#])?)\s*\Z/m.
+            match(para)[1,2]
           para=[]
           if not text.to_s.empty?
             para << text.to_s << block_close
@@ -141,7 +175,11 @@ module SiSU_AO_MiscArrangeText
         end
         para
       end
-      para=if para =~/\A```[ ]+(?:code|poem|alt|group|block|table).*?\n.*?\Z/m \
+      para=if (para =~/\A```[ ]+quote/m \
+      and @flag !=:open) \
+      or @flag==:quote_open
+        ticks_quote(para)
+      elsif para =~/\A```[ ]+(?:code(?:\.[a-z][0-9a-z_]+)?|box(?:\.[a-z_]+)?|poem|alt|group|block|table).*?\n.*?\Z/m \
       or @flag==:open
         ticks(para)
       elsif para =~/```/m
@@ -149,9 +187,11 @@ module SiSU_AO_MiscArrangeText
       else
         para
       end
-      para=(para =~/^(?:code|poem|alt|group|block|table)\{|^\}(?:code|poem|alt|group|block|table)/m) \
-      ? curly_braces(para)
-      : para
+      para=if para =~/^(?:code(?:\.[a-z][0-9a-z_]+)?|box(?:\.[a-z_]+)?|poem|alt|group|block|table)\{|^\}(?:code|box|poem|alt|group|block|table)/m
+        curly_braces(para)
+      else
+        para
+      end
     end
     def prepare_text
       data=@data
diff --git a/lib/sisu/v5/ao_numbering.rb b/lib/sisu/v5/ao_numbering.rb
index a143abeb..c4b6558f 100644
--- a/lib/sisu/v5/ao_numbering.rb
+++ b/lib/sisu/v5/ao_numbering.rb
@@ -63,10 +63,23 @@
 module SiSU_AO_Numbering
   class Numbering
     attr_accessor :obj,:osp,:ocn,:lv,:name,:index,:comment
+    @@segments_count=0
     def initialize(md,data)
       @md,@data=md,data
       @obj=@type=@ocn=@lv=@name=@index=@comment=nil
     end
+    def number_of_segments?
+      if @@segments_count==0
+        @data.each do |dob|
+          if dob.is ==  :heading \
+          and dob.lv == '1'
+            @@segments_count += 1
+          end
+        end
+        @@segments_count
+      else @@segments_count
+      end
+    end
     def numbering_song
       data=@data
       data=number_plaintext_para(data)
@@ -121,7 +134,8 @@ module SiSU_AO_Numbering
       dob
     end
     def heading_tag_clean(heading_tag)
-      heading_tag=heading_tag.gsub(/[ ]+/,'_').
+      heading_tag=heading_tag.
+        gsub(/[ ]+/,'_').
         gsub(/["']/,'').
         gsub(/[\/]/,'-').
         gsub(/#{Mx[:fa_bold_o]}|#{Mx[:fa_bold_c]}/,'').
@@ -151,7 +165,6 @@ module SiSU_AO_Numbering
       data=data.compact
       data.each do |dob| #@md.seg_names << [additions to segment names]
         title_no=nil
-        dob=SiSU_AO_DocumentStructureExtract::Structure.new(@md,dob).structure_markup #must happen earlier, node info etc. require
         if dob.is ==:heading \
         && dob.autonum_ \
         and defined? @md.make.num_top \
@@ -279,6 +292,33 @@ module SiSU_AO_Numbering
       end
       @tuned_file=@tuned_file.flatten
     end
+    def leading_zeros_fixed_width_number(possible_seg_name)
+      if possible_seg_name =~/^([\d]+?\.|[\d]+)$/m          #!~/[.,:-]+/
+        possible_seg_name=possible_seg_name.
+          gsub(/\.$/,'')
+        nl=possible_seg_name.to_s.length
+        zero='0'
+        zeros_fixed_width=number_of_segments?.to_s.length
+        zero_width=(zeros_fixed_width - nl)
+        zero_width == 0 \
+        ? Mx[:auto_seg_prefix] +
+          possible_seg_name.to_s
+        : Mx[:auto_seg_prefix] +
+          zero*zero_width +
+          possible_seg_name.to_s
+      end
+    end
+    def auto_seg_name(possible_seg_name)
+      if possible_seg_name =~/^([\d]+?\.|[\d]+)$/m          #!~/[.,:-]+/
+        leading_zeros_fixed_width_number(possible_seg_name)
+      elsif possible_seg_name =~/^[\d.,:-]+$/m
+        possible_seg_name=possible_seg_name.
+          gsub(/(?:[:,-]|\W)/,'.').
+          gsub(/\.$/,'')
+        #Mx[:auto_seg_prefix] + possible_seg_name
+      else possible_seg_name
+      end
+    end
     def name_para_seg_filename(data)                                                   #segment naming, remaining
       # paragraph name/numbering rules
       # manual naming overrides, manual naming may be
@@ -313,9 +353,12 @@ module SiSU_AO_Numbering
             @md.set_heading_seg=true
           end
           if dob.name !~/^\S+/ \
-          and dob.obj =~/^\s*(?:\S+\s+)?([\d.,:-]+)/m      #heading starts with a recognised numeric or word followed by a recognised numerical construct, use that as name
+          and dob.obj =~/^\s*(?:\S+\s+)?([\d.,:-]+)/m      #heading starts with a recognised numeric or word followed by a recognised numeric construct, use that as name
             possible_seg_name=$1
-            possible_seg_name=possible_seg_name.gsub(/(?:[:,-]|\W)/,'.').
+            possible_seg_name=
+              auto_seg_name(possible_seg_name)
+            possible_seg_name=possible_seg_name.
+              gsub(/(?:[:,-]|\W)/,'.').
               gsub(/\.$/,'')
             if @md.seg_names.is_a?(Array) \
             and not @md.seg_names.include?(possible_seg_name)
@@ -337,13 +380,13 @@ module SiSU_AO_Numbering
           end
           if dob.ln==4 \
           and not dob.name                                 #if still no segment name, provide a numerical one
-            pf='_'                                         #pg='' #may use e.g. '' or '~' or '_'
-            segn_auto="#{pf}#{art_filename_auto.to_s}"
+            possible_seg_name=
+              auto_seg_name(art_filename_auto)
             if @md.seg_names.is_a?(Array) \
-            and not @md.seg_names.include?(segn_auto)
-             dob.name=segn_auto
+            and not @md.seg_names.include?(possible_seg_name)
+             dob.name=possible_seg_name
              dob.tags=set_tags(dob.tags,dob.name)
-              @md.seg_names << segn_auto
+              @md.seg_names << possible_seg_name
             else puts 'segment name (numbering) error'
             end
             art_filename_auto+=1
@@ -363,11 +406,17 @@ module SiSU_AO_Numbering
           m=dob.ln.to_s
           dob_tmp=[]
           if @md.pagenew.inspect =~/#{m}/
-            dob_tmp << SiSU_AO_DocumentStructure::ObjectLayout.new.break(Hx[:br_page_new]) << dob
+            dob_tmp <<
+              SiSU_AO_DocumentStructure::ObjectLayout.new.break(Hx[:br_page_new]) <<
+              dob
           elsif @md.pagebreak.inspect =~/#{m}/
-            dob_tmp << SiSU_AO_DocumentStructure::ObjectLayout.new.break(Hx[:br_page]) << dob
+            dob_tmp <<
+              SiSU_AO_DocumentStructure::ObjectLayout.new.break(Hx[:br_page]) <<
+              dob
           elsif @md.pageline.inspect =~/#{m}/
-            dob_tmp << SiSU_AO_DocumentStructure::ObjectLayout.new.break(Hx[:br_page_line]) << dob
+            dob_tmp <<
+              SiSU_AO_DocumentStructure::ObjectLayout.new.break(Hx[:br_page_line]) <<
+              dob
           end
           unless dob_tmp.length > 0; dob
           else                       dob_tmp
@@ -381,11 +430,23 @@ module SiSU_AO_Numbering
           : @segname
           tags["#{dob.ocn}"]={ segname: @segname }
           ocn_html_seg[dob.ocn]=if (dob.is==:heading || dob.is==:heading_insert)
-            if dob.ln =~/[0-3]/ then { seg: nil, level: dob.ln }
+            if dob.ln =~/[0-3]/
+              {
+                seg: nil,
+                level: dob.ln,
+              }
             #elsif dob.ln =~/[4-6]/
-            else                     { seg: @seg, level: dob.ln }
+            else
+              {
+                seg: @seg,
+                level: dob.ln,
+              }
             end
-          else                       { seg: @seg, level: nil }
+          else
+            {
+              seg: @seg,
+              level: nil,
+            }
           end
         end
         dob.tags=dob.tags.uniq if defined? dob.tags
@@ -434,7 +495,9 @@ module SiSU_AO_Numbering
               and defined? @md.title.full \
               and defined? @md.creator \
               and @md.creator
-                head=@md.title.main ? ([@lv='1',@obj=@md.title.main]) : ([@lv='1',@obj='[no title provided]'])
+                head=@md.title.main \
+                ? ([@lv='1',@obj=@md.title.main])
+                : ([@lv='1',@obj='[no title provided]'])
                 @tuned_file << head
               end
             end
@@ -479,7 +542,8 @@ module SiSU_AO_Numbering
           unless @md.set_header_title
             if t_o !~/^%{1,2}\s/m \
             and t_o !~/\A\s*\Z/m
-              @tuned_file << "#{Mx[:meta_o]}title#{Mx[:meta_c]} #{@md.heading_seg_first}"
+              @tuned_file <<
+                "#{Mx[:meta_o]}title#{Mx[:meta_c]} #{@md.heading_seg_first}"
               @md.title.main=@md.heading_seg_first
               @md.set_header_title=true
             end
diff --git a/lib/sisu/v5/ao_syntax.rb b/lib/sisu/v5/ao_syntax.rb
index a75e2690..99cb6ca0 100644
--- a/lib/sisu/v5/ao_syntax.rb
+++ b/lib/sisu/v5/ao_syntax.rb
@@ -91,7 +91,7 @@ module SiSU_AO_Syntax
         { o: Mx[:fa_underscore_o], c: Mx[:fa_underscore_c] }
       else p __LINE__.to_s + '::' + __FILE__
       end
-      @http_m=%r{\{.+?\}https?://\S+|https?:\S+|:\S+|\.\.\/\S+|#\S+|\S+?\.png\b|[*]~\S+|^#{Mx[:meta_o]}.+|#{Mx[:gr_o]}(?:code|block|group|alt|verse)(?:-end)?#{Mx[:gr_c]}|#{Mx[:fa_o]}:br#{Mx[:fa_c]}}
+      @http_m=%r{\{.+?\}https?://\S+|https?:\S+|:\S+|\.\.\/\S+|#\S+|\S+?\.png\b|[*]~\S+|^#{Mx[:meta_o]}.+|#{Mx[:gr_o]}(?:code(?:\.[a-z][0-9a-z_]+)?|box(?:\.[a-z_]+)?|block|group|alt|verse)(?:-end)?#{Mx[:gr_c]}|#{Mx[:fa_o]}:br#{Mx[:fa_c]}}
       @manmkp_ital=emph_italics \
       ? '[i/*]\\{.+?\\}[i/*]'
       : '[i/]\\{.+?\\}[i/]'
@@ -143,7 +143,8 @@ module SiSU_AO_Syntax
       && dob.is !=:comment \
       && dob.is !=:code \
       && dob.is !=:table
-        dob.obj=dob.obj.gsub(/^-\\\\-\s*$/,"#{Mx[:br_page]}").
+        dob.obj=dob.obj.
+          gsub(/^-\\\\-\s*$/,"#{Mx[:br_page]}").
           gsub(/^=\\\\=\s*$/,"#{Mx[:br_page_new]}").
           gsub(/ \\\\(?: |$)/,"#{Mx[:br_line]}").
           gsub(/(?:<:?pb>)/,"#{Mx[:br_page]}").                         # depreciated
@@ -163,6 +164,7 @@ module SiSU_AO_Syntax
         && dob.is !=:heading \
         && dob.is !=:heading_insert \
         && dob.is !=:code \
+        && dob.is !=:layout \
         && dob.is !=:comment
           word=dob.obj.scan(@line_scan_ital)
           word=word.flatten.compact
@@ -189,7 +191,8 @@ module SiSU_AO_Syntax
       dob
     end
     def embolden(given)
-      given=given.gsub(/^!_\s+((?:\{|#{Mx[:lnk_o]})(?:~^ )?.+?(?:\}|#{Mx[:lnk_o]})https?:\/\/\S+.*?)([#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:br_nl]}])/,
+      given=given.
+        gsub(/^!_\s+((?:\{|#{Mx[:lnk_o]})(?:~^ )?.+?(?:\}|#{Mx[:lnk_o]})https?:\/\/\S+.*?)([#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:br_nl]}])/,
           "#{Mx[:fa_bold_o]} \\1 #{Mx[:fa_bold_c]}\\2").
         gsub(/^!_\s+((?:\{|#{Mx[:lnk_o]})(?:~^ )?.+?(?:\}|#{Mx[:lnk_o]})https?:\/\/\S+.*)/,
           "#{Mx[:fa_bold_o]} \\1 #{Mx[:fa_bold_c]}").
@@ -203,7 +206,8 @@ module SiSU_AO_Syntax
           "#{Mx[:fa_bold_o]}\\1#{Mx[:fa_bold_c]}")
     end
     def italicise(given)
-      given=given.gsub(/^\/_\s*(.+?)([#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:br_nl]}])/,
+      given=given.
+        gsub(/^\/_\s*(.+?)([#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:br_nl]}])/,
           "#{Mx[:fa_italics_o]}\\1#{Mx[:fa_italics_c]}\\2").
         gsub(/^\/_\s*(.+?)\s+((?:[*]~\S+\s*)+)/,
           "#{Mx[:fa_italics_o]}\\1#{Mx[:fa_italics_c]}\\2").
@@ -281,11 +285,13 @@ module SiSU_AO_Syntax
           word.each do |w|
             unless /#{@manmkp_bold}|#{@http_m}/.match(w)
               if defined? @md.bold_match_list[:regx] \
-              and @md.bold_match_list[:regx]                                                   #document header: @bold: [bold word list]
-                w=w.gsub(@md.bold_match_list[:regx],"#{Mx[:fa_bold_o]}\\1#{Mx[:fa_bold_c]}")
+              and @md.bold_match_list[:regx]                                             #document header: @bold: [bold word list]
+                w=w.gsub(@md.bold_match_list[:regx],
+                  "#{Mx[:fa_bold_o]}\\1#{Mx[:fa_bold_c]}")
               elsif defined? @vz.markup_make_bold \
               and @vz.markup_make_bold                                                   #defaults adjusted bold word list
-                w=w.gsub(@vz.markup_make_bold,"#{Mx[:fa_bold_o]}\\1#{Mx[:fa_bold_c]}")
+                w=w.gsub(@vz.markup_make_bold,
+                  "#{Mx[:fa_bold_o]}\\1#{Mx[:fa_bold_c]}")
               end
             else
               w=if w =~ /(?:^!_|^#{Mx[:lv_o]}[7-9]:\S*?#{Mx[:lv_c]})\s+/
@@ -323,7 +329,9 @@ module SiSU_AO_Syntax
             else ''
             end
             txt="#{lead_break}#{fce}\{" + txt.split(Mx[:br_nl]).join("\}#{fce}#{Mx[:br_nl]}#{fce}\{") + "\}#{fce}"
-            dob.obj=dob.obj.sub(/(?:^|#{Mx[:gl_c]}|\s+|['"]|[#{Mx[:nbsp]}#{Mx[:fa_o_c]}#{Mx[:fa_c]}#{Mx[:lnk_o]}#{Mx[:br_nl]}#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:tc_c]}#{Mx[:tc_p]}]|[\(\[\{]|\>)([*!\/_#])\{.+?\}\1/m,"#{lead}#{txt}")
+            dob.obj=dob.obj.
+              sub(/(?:^|#{Mx[:gl_c]}|\s+|['"]|[#{Mx[:nbsp]}#{Mx[:fa_o_c]}#{Mx[:fa_c]}#{Mx[:lnk_o]}#{Mx[:br_nl]}#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:tc_c]}#{Mx[:tc_p]}]|[\(\[\{]|\>)([*!\/_#])\{.+?\}\1/m,
+                "#{lead}#{txt}")
             dob
           else dob
           end
@@ -335,7 +343,8 @@ module SiSU_AO_Syntax
     def fontface(dob)
       leader=/^|#{Mx[:gl_c]}|\s+|['"]|[#{Mx[:nbsp]}#{Mx[:fa_o_c]}#{Mx[:fa_c]}#{Mx[:lnk_o]}#{Mx[:br_nl]}#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:tc_c]}#{Mx[:tc_p]}]|[\(\[\{]|[、。「‹«¿¡]|\>/
       dob=fontface_lines(dob,leader)
-      dob.obj=dob.obj.gsub(/(#{leader})\*\{(.+?)\}\*/m,
+      dob.obj=dob.obj.
+        gsub(/(#{leader})\*\{(.+?)\}\*/m,
           "\\1#{@emph[:o]}\\2#{@emph[:c]}").                                                                                                                             #emphasis
         gsub(/(#{leader})!\{(.+?)\}!/m,
           "\\1#{Mx[:fa_bold_o]}\\2#{Mx[:fa_bold_c]}").                                                                                                                   #bold
@@ -398,18 +407,20 @@ module SiSU_AO_Syntax
         word=dob.obj.scan(/\S+|\n/) #unless line =~/^(?:#{Mx[:meta_o]}|%+\s)/ #visit
         if word
           word.each do |w| # _ - / # | : ! ^ ~
-            unless w =~/~\{|\}~|~\[|\]~|^\^~|~\^|\*~\S+|~#|\{t?~|\{table|https?:\/\/\S+/             # do something earlier about table!!
-              w=w.gsub(/\\?~/,"#{Mx[:gl_o]}#126#{Mx[:gl_c]}")                                       #escaped special character
+            unless w =~/~\{|\}~|~\[|\]~|^\^~|~\^|\*~\S+|~#|\{t?~|\{table|https?:\/\/\S+/           # do something earlier about table!!
+              w=w.gsub(/\\?~/,"#{Mx[:gl_o]}#126#{Mx[:gl_c]}")                                      #escaped special character
             end
-            w=w.gsub(/^\<$/,"#{Mx[:gl_o]}#lt#{Mx[:gl_c]}").gsub(/^\>$/,"#{Mx[:gl_o]}#gt#{Mx[:gl_c]}")                                          #escaped special character
+            w=w.gsub(/^\<$/,
+              "#{Mx[:gl_o]}#lt#{Mx[:gl_c]}").gsub(/^\>$/,"#{Mx[:gl_o]}#gt#{Mx[:gl_c]}")            #escaped special character
             line_array << w
           end
           dob.obj=line_array.join(' ')
           dob.obj=dob.obj.strip
         end
-        dob.obj=dob.obj.gsub(/^([*#-.]{1,12})$/,'\1 ~#').                                                #ocn off for these paragraph separators
+        dob.obj=dob.obj.
+          gsub(/^([*#-.]{1,12})$/,'\1 ~#').                                                        #ocn off for these paragraph separators
           gsub(/~\{(.+?)\}~/m,Mx[:en_a_o] + '\1' + Mx[:en_a_c]).
-          gsub(/~\[([^*+].+?)\]~/m,Mx[:en_b_o] + '* \1' + Mx[:en_b_c]).                    #default if markup does not specify
+          gsub(/~\[([^*+].+?)\]~/m,Mx[:en_b_o] + '* \1' + Mx[:en_b_c]).                            #default if markup does not specify
           gsub(/~\[(.+?)\]~/m,Mx[:en_b_o] + '\1' + Mx[:en_b_c])
         if dob.is ==:heading \
         and dob.ln ==0
@@ -430,12 +441,14 @@ module SiSU_AO_Syntax
             dob.obj=if dob.lv =~/[23]/ \
             and defined? @md.creator.author \
             and @md.creator.author
-              dob.obj.gsub(/^\s*(?:(by\s+)?(?:@creator|@author))\s*$/,"\\1#{@md.creator.author}")
+              dob.obj.
+                gsub(/^\s*(?:(by\s+)?(?:@creator|@author))\s*$/,
+                  "\\1#{@md.creator.author}")
             else dob.obj.gsub(/^\s*(?:(by\s+)?(?:@creator|@author))\s*$/,'\1')
             end
           end
         end
-        dob.obj=dob.obj.gsub(/<(https?:\/\/\S+?)>/,'< \1 >').                                   #catch problem markup
+        dob.obj=dob.obj.gsub(/<(https?:\/\/\S+?)>/,'< \1 >').                     #catch problem markup
           gsub(/<:=(\S+?)>/,'{ c_\1.png 14x14 }image').
           gsub(/<!(\S+)!>/,'<:\1>').                                              #escaped special character
           gsub(/&nbsp;/,"#{Mx[:nbsp]}").                                          #escaped special character
@@ -462,15 +475,18 @@ module SiSU_AO_Syntax
           gsub(/\\\!/,"#{Mx[:gl_o]}#033#{Mx[:gl_c]}")                             #escaped special character
         if dob.obj=~/(?:https?:|ftp:|\{([^{}]+?)\}(?:#|:|[.]{1,2}\/))\S+/m
           if dob.obj=~/(?:^|[#{Mx[:gl_c]}#{Mx[:nbsp]} ])\{~\^ (?:.+?)\s*\}(?:(?:https?:|ftp:|:|[.]{1,2}\/)\S+?)\s*#{Mx[:en_a_o]}(.+?)#{Mx[:en_a_c]}/m
-            dob.obj=dob.obj.gsub(/(^|[#{Mx[:gl_c]}#{Mx[:nbsp]} ])\{~\^ ([^}]+?)\s*\}((?:https?:|ftp:|:|[.]{1,2}\/)\S+?)\s*#{Mx[:en_a_o]}(.+?)#{Mx[:en_a_c]}/m,
-              "\\1#{Mx[:lnk_o]}\\2#{Mx[:lnk_c]}\\3 #{Mx[:en_a_o]}\\3 \\4#{Mx[:en_a_c]}") # watch
+            dob.obj=dob.obj.
+              gsub(/(^|[#{Mx[:gl_c]}#{Mx[:nbsp]} ])\{~\^ ([^}]+?)\s*\}((?:https?:|ftp:|:|[.]{1,2}\/)\S+?)\s*#{Mx[:en_a_o]}(.+?)#{Mx[:en_a_c]}/m,
+                "\\1#{Mx[:lnk_o]}\\2#{Mx[:lnk_c]}\\3 #{Mx[:en_a_o]}\\3 \\4#{Mx[:en_a_c]}") # watch
           end
           if dob.obj=~/(?:^|[#{Mx[:gl_c]}#{Mx[:nbsp]} ])\{~\^ (?:.+?)\s*\}(?:(?:https?:|ftp:|:|[.]{1,2}\/)\S+?)([;,.]?)(?=\s|[#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:br_nl]}]|$)/m
-            dob.obj=dob.obj.gsub(/(^|[#{Mx[:gl_c]}#{Mx[:nbsp]} ])\{~\^ (.+?)\s*\}((?:https?:|ftp:|:|[.]{1,2}\/)\S+?)([;,.]?)(?=\s|[#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:br_nl]}]|$)/m,
-              "\\1#{Mx[:lnk_o]}\\2#{Mx[:lnk_c]}\\3\\4 #{Mx[:en_a_o]}\\3#{Mx[:en_a_c]} ")
+            dob.obj=dob.obj.
+              gsub(/(^|[#{Mx[:gl_c]}#{Mx[:nbsp]} ])\{~\^ (.+?)\s*\}((?:https?:|ftp:|:|[.]{1,2}\/)\S+?)([;,.]?)(?=\s|[#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:br_nl]}]|$)/m,
+                "\\1#{Mx[:lnk_o]}\\2#{Mx[:lnk_c]}\\3\\4 #{Mx[:en_a_o]}\\3#{Mx[:en_a_c]} ")
           end
-          dob.obj=dob.obj.gsub(/(^|[^#])\{\s*([^{}]+?)\s*\}((?:https?:|:|[.]{2}\/|#)\S+?)(?=\s|[#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:br_nl]}#{Mx[:en_a_o]}#{Mx[:en_b_o]}]|$)/,
-              "\\1#{Mx[:lnk_o]}\\2#{Mx[:lnk_c]}\\3").                                                                                                                    #linked (text or image, however text cannot include modified face, e.g. bold, ital, underline)
+          dob.obj=dob.obj.
+              gsub(/(^|[^#])\{\s*([^{}]+?)\s*\}((?:https?:|:|[.]{2}\/|#)\S+?)(?=\s|[#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:br_nl]}#{Mx[:en_a_o]}#{Mx[:en_b_o]}]|$)/,
+                "\\1#{Mx[:lnk_o]}\\2#{Mx[:lnk_c]}\\3").                                                                                                                    #linked (text or image, however text cannot include modified face, e.g. bold, ital, underline)
             gsub(/(^|[#{Mx[:gl_c]}#{Mx[:lnk_c]}#{Mx[:en_a_o]}#{Mx[:en_b_o]}(\s])((?:https?|ftp):\/\/\S+?\.[^>< ]+?)([,.;'"]?)(?=[\s#{Mx[:en_a_c]}#{Mx[:en_b_c]}#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:br_nl]}]|$)/m,
               %{\\1#{Mx[:url_o]}\\2#{Mx[:url_c]}\\3}).
             gsub(/#{Mx[:lnk_c]}#(\S+?[^>< ]+?)([()\[\]]*[,.;:!?'"]{0,2})(?=[\s#{Mx[:en_a_c]}#{Mx[:en_b_c]}#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:br_nl]}]|$)/m,
@@ -485,7 +501,8 @@ module SiSU_AO_Syntax
             %{\\1#{Mx[:url_o]}\\2#{Mx[:url_c]}\\3})
         end
         dob=fontface(dob)
-        dob.obj=dob.obj.gsub(/<[:e]\s+(.+?)!?>/,
+        dob.obj=dob.obj.
+          gsub(/<[:e]\s+(.+?)!?>/,
             "#{Mx[:en_a_o]}\\1#{Mx[:en_a_c]}").                                                                                                                             #not tested
           gsub(/(^|#{Mx[:br_nl]})\s*_\*\s*/,
             "\\1#{Mx[:gl_bullet]}").                                                                                                                                        #bullets, shortcut
@@ -525,7 +542,8 @@ module SiSU_AO_Syntax
       elsif dob.is==:table
         dob=fontface(dob)
       elsif dob.is ==:code
-        dob.obj=dob.obj.gsub(/#{Mx[:meta_o]}(\S+?)#{Mx[:meta_c]}\s*/,'@\1: ').
+        dob.obj=dob.obj.
+          gsub(/#{Mx[:meta_o]}(\S+?)#{Mx[:meta_c]}\s*/,'@\1: ').
           gsub(/(^|#{Mx[:gl_c]}|\s)&lt;(br(?: \/)?)&gt;([\s,.]|$)/,'\1<\2>\3') #convert <br> <br /> back, clumsy
         if dob.number_
           codeline=[]
@@ -568,7 +586,8 @@ module SiSU_AO_Syntax
       # +2                  <!i2!>
       puts 'tech'
       @data.each do |line|
-        line=line.gsub(/(^|\s+|['"]|#{Mx[:fa_o_c]}|#{Mx[:fa_c]}|[\(\[]|\>)e\{(.+?)\}e/,
+        line=line.
+          gsub(/(^|\s+|['"]|#{Mx[:fa_o_c]}|#{Mx[:fa_c]}|[\(\[]|\>)e\{(.+?)\}e/,
             "\\1#{@emph[:o]}\\2#{@emph[:c]}").                                                        #emphasis
           gsub(/(^|\s+|['"]|#{Mx[:fa_o_c]}|#{Mx[:fa_c]}|[\(\[]|\>)b\{(.+?)\}b/,
             "\\1#{Mx[:fa_bold_o]}\\2#{Mx[:fa_bold_c]}").                                              #bold
diff --git a/lib/sisu/v5/constants.rb b/lib/sisu/v5/constants.rb
index 42ab53a3..eb252fda 100644
--- a/lib/sisu/v5/constants.rb
+++ b/lib/sisu/v5/constants.rb
@@ -104,6 +104,7 @@ Xx={
   html_relative1:            '※',
 }
 Mx={
+  auto_seg_prefix:           's',
   ocn_id_char:               'o',
   note:                      'note_',
   note_ref:                  'noteref_',
@@ -333,6 +334,7 @@ DISABLE={
 }
 DEVELOPER={
   maintenance:               :false,
+  under_construction:        '_CONSTRUCTION_ZONE',
 }
 __END__
 utils.rb
diff --git a/lib/sisu/v5/concordance.rb b/lib/sisu/v5/html_concordance.rb
index b9030123..b9030123 100644
--- a/lib/sisu/v5/concordance.rb
+++ b/lib/sisu/v5/html_concordance.rb
diff --git a/lib/sisu/v5/hub.rb b/lib/sisu/v5/hub.rb
index 152de391..d9359862 100644
--- a/lib/sisu/v5/hub.rb
+++ b/lib/sisu/v5/hub.rb
@@ -75,7 +75,8 @@ module SiSU
   begin
     require 'uri'
   rescue LoadError
-    SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).error('uri NOT FOUND (LoadError)')
+    SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).
+      error('uri NOT FOUND (LoadError)')
   end
   class HubMaster
     def initialize(argv)
@@ -159,7 +160,11 @@ module SiSU
         end
       end
       if files_translated_idx.flatten.length > 1
-      SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'Manifest re-run on (currently generated) translated files',"").grey_title_hi unless @opt.act[:quiet][:set] ==:on
+        SiSU_Screen::Ansi.new(
+          @opt.act[:color_state][:set],
+          'Manifest re-run on (currently generated) translated files',
+          ''
+        ).grey_title_hi unless @opt.act[:quiet][:set] ==:on
         files_translated_idx.flatten.each do |i|
           @opt.fns=@opt.files[i]
           @opt.f_pth=@opt.f_pths[i]
@@ -191,22 +196,26 @@ module SiSU
       @@n_do=0
     end
     def remote_put_base_site_rsync                         # -CR
-      SiSU_Utils::CodeMarker.new(__LINE__,__FILE__).mark(:cyan) if @opt.act[:maintenance][:set] ==:on
+      SiSU_Utils::CodeMarker.new(__LINE__,__FILE__).mark(:cyan) \
+        if @opt.act[:maintenance][:set] ==:on
       require_relative 'remote'                        # remote.rb
       SiSU_Remote::Put.new(@opt).rsync_base
     end
     def remote_put_base_site_rsync_match                   # -CCRZ
-      SiSU_Utils::CodeMarker.new(__LINE__,__FILE__).mark(:cyan) if @opt.act[:maintenance][:set] ==:on
+      SiSU_Utils::CodeMarker.new(__LINE__,__FILE__).mark(:cyan) \
+        if @opt.act[:maintenance][:set] ==:on
       require_relative 'remote'                        # remote.rb
       SiSU_Remote::Put.new(@opt).rsync_base_sync
     end
     def remote_put_base_site                               # -Cr
-      SiSU_Utils::CodeMarker.new(__LINE__,__FILE__).mark(:cyan) if @opt.act[:maintenance][:set] ==:on
+      SiSU_Utils::CodeMarker.new(__LINE__,__FILE__).mark(:cyan) \
+        if @opt.act[:maintenance][:set] ==:on
       require_relative 'remote'                        # remote.rb
       SiSU_Remote::Put.new(@opt).scp_base
     end
     def remote_put_base_site_all                           # -CCr
-      SiSU_Utils::CodeMarker.new(__LINE__,__FILE__).mark(:cyan) if @opt.act[:maintenance][:set] ==:on
+      SiSU_Utils::CodeMarker.new(__LINE__,__FILE__).mark(:cyan) \
+        if @opt.act[:maintenance][:set] ==:on
       require_relative 'remote'                        # remote.rb
       SiSU_Remote::Put.new(@opt).scp_base_all
     end
@@ -217,7 +226,10 @@ module SiSU
     def termsheet                                          # -t
       system("sisu_termsheet #{@opt.cmd} #{@opt.fns}\n")
       @@n_do=@@n_do+1
-      SiSU_Screen::Ansi.new(@opt.cmd,@@n_do,'Termsheet(s) processed').term_sheet_title unless @opt.act[:quiet][:set] ==:on
+      SiSU_Screen::Ansi.new(
+        @opt.cmd,@@n_do,
+        'Termsheet(s) processed'
+      ).term_sheet_title unless @opt.act[:quiet][:set] ==:on
     end
     def webrick                                            # -W
       prt=SiSU_Env::InfoEnv.new(@fns).port.webrick_port
@@ -254,7 +266,8 @@ module SiSU
       require 'fileutils'
         include FileUtils
     rescue LoadError
-      SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).error('fileutils NOT FOUND (LoadError)')
+      SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).
+        error('fileutils NOT FOUND (LoadError)')
     end
     @@env=nil
     attr_accessor :op
@@ -262,7 +275,9 @@ module SiSU
       @opt=opt
       @@env=@env=SiSU_Env::InfoEnv.new
       @msg,@msgs='',nil
-      @tell=lambda { SiSU_Screen::Ansi.new(@opt.cmd,@msg,"#{@msgs.inspect if @msgs}") }
+      @tell=lambda {
+        SiSU_Screen::Ansi.new(@opt.cmd,@msg,"#{@msgs.inspect if @msgs}")
+      }
     end
     def remove_skipped_files_if_any_from_processing_files_array
       if @remove_faulty_markup_files_array.length > 0
@@ -272,7 +287,8 @@ module SiSU
     def print_error_message_if_files_skipped
       if @remove_faulty_markup_files_array.length > 0
         puts '---'
-        STDERR.puts 'ERROR with file(s), did not process: ' + @remove_faulty_markup_files_array.join(',')
+        STDERR.puts 'ERROR with file(s), did not process: ' +
+          @remove_faulty_markup_files_array.join(',')
       end
     end
     def do_loops
@@ -288,7 +304,8 @@ module SiSU
     def do_each_file_loop_options
       @opt.files.each_with_index do |fno,i|
         @opt.fno=fno
-        @opt.fns=fno.gsub(/(?:https?|file):\/\/\S+\/(\S+)\.sst$/,'\1.-sst').
+        @opt.fns=fno.
+          gsub(/(?:https?|file):\/\/\S+\/(\S+)\.sst$/,'\1.-sst').
           gsub(/\.ssm$/,'.ssm.sst')
         @opt.f_pth=@opt.f_pths[i]
         if @opt.fns !~/\.-sst$/
@@ -307,7 +324,7 @@ module SiSU
           $process_document = :ok
           unless @opt.act[:po4a][:set]==:on            # --po4a, -P
             if @opt.fno =~ /\.ssm$/
-              require_relative 'composite'             # composite.rb #pre-processing
+              require_relative 'ao_composite'          # ao_composite.rb #pre-processing
               SiSU_Assemble::Composite.new(@opt).read
             end
             require_relative 'ao'                      # -m     ao.rb
@@ -357,7 +374,7 @@ module SiSU
             end
           end
           if @opt.act[:concordance][:set]==:on           #% --concordance, -w
-            require_relative 'concordance'               #  concordance.rb
+            require_relative 'html_concordance'          #  html_concordance.rb
             SiSU_Concordance::Source.new(@opt).read
           end
           if @opt.act[:epub][:set]==:on                  #% --epub, -e
@@ -492,7 +509,8 @@ module SiSU
         ensure
           path_pod=@env.processing_path.processing_sisupod(@opt).paths
           unless @opt.act[:maintenance][:set]==:on
-            FileUtils::rm_rf("#{path_pod[:sisupod]}/*") if FileTest.directory?(path_pod[:sisupod])
+            FileUtils::rm_rf("#{path_pod[:sisupod]}/*") \
+              if FileTest.directory?(path_pod[:sisupod])
           end
         end
       end
@@ -518,7 +536,7 @@ module SiSU
             case @opt.fns
             when /\.(termsheet.rb)$/
               SiSU::Operations.new(@opt).termsheet
-            else                                 #print "not processed --> ", fns, "\n"
+            else                                       #print "not processed --> ", fns, "\n"
             end
           else SiSU::Operations.new(@opt).not_found
           end
@@ -528,13 +546,13 @@ module SiSU
       if @opt.act[:psql][:set]==:on                    #% --pg, -D DB postgresql
         require_relative 'dbi'
         OptionLoopFiles.new(@opt).loop_files_on_given_option do
-          SiSU_DBI::SQL.new(@opt).connect            # -D -d  dbi.rb
+          SiSU_DBI::SQL.new(@opt).connect              # -D -d  dbi.rb
         end
       end
       if @opt.act[:sqlite][:set]==:on                  #% --sqlite, -d DB sqlite
         require_relative 'dbi'
         OptionLoopFiles.new(@opt).loop_files_on_given_option do
-          SiSU_DBI::SQL.new(@opt).connect            # -D -d  dbi.rb
+          SiSU_DBI::SQL.new(@opt).connect              # -D -d  dbi.rb
         end
       end
       if @opt.act[:manifest][:set]==:on                #% --manifest, -y
@@ -579,7 +597,10 @@ module SiSU
         if (@opt.act[:verbose][:set]==:on \
         || @opt.act[:verbose_plus][:set]==:on \
         || @opt.act[:maintenance][:set]==:on)
-          SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],' ' + File.dirname(__FILE__)).grey
+          SiSU_Screen::Ansi.new(
+            @opt.act[:color_state][:set],
+            ' ' + File.dirname(__FILE__)
+          ).grey
         end
       end
       if @opt.act[:ao][:set]==:on \
@@ -676,7 +697,8 @@ module SiSU
         begin
           require 'profile'
         rescue LoadError
-          SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).error('profile NOT FOUND (LoadError)')
+          SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).
+            error('profile NOT FOUND (LoadError)')
         end
       end
       action_on_file_ =if @opt.act[:rsync][:set]==:on \
diff --git a/lib/sisu/v5/options.rb b/lib/sisu/v5/options.rb
index 091f7665..591bb990 100644
--- a/lib/sisu/v5/options.rb
+++ b/lib/sisu/v5/options.rb
@@ -72,7 +72,22 @@ module SiSU_Commandline
   @@sisu_call_origin_path=nil
   class HeaderCommon
     def sisu_document_make_instructions
-      @pagenew=@pagebreak=@pageline=@toc=@lv1=@lv2=@lv3=@lv4=@lv5=@lv6=@num_top=@i18n=@man_section=@emphasis_set_to=@bold_match_list=@italics_match_list=@substitution_match_list=@footer_links=@home_button_links=@links=nil
+      @pagenew=
+        @pagebreak=
+        @pageline=
+        @toc=
+        @lv1=@lv2=@lv3=@lv4=@lv5=@lv6=
+        @num_top=
+        @i18n=
+        @man_section=
+        @emphasis_set_to=
+        @bold_match_list=
+        @italics_match_list=
+        @substitution_match_list=
+        @footer_links=
+        @home_button_links=
+        @links=
+        nil
       make_instruct_array=SiSU_Env::GetInit.new.sisu_document_make.makefile_read
       @makeset=false
       if make_instruct_array
@@ -143,7 +158,8 @@ module SiSU_Commandline
     attr_accessor :cmd,:mod,:act,:dir_structure_by,:lingual,:f_pths,:files,:files_mod,:base_path,:base_stub,:sub_location,:paths,:lngs,:f_pth,:pth,:fno,:fns,:fnb,:fnc,:fng,:fncb,:lng,:lng_base,:what,:make_instructions,:make_instructions_pod
     @@act=nil
     def initialize(a)
-      @cmd,@f_pth,@pth,@fno,@fns,@fnb,@fnc,@fng,@fncb,@what,@lng,@lng_base,@base_path,@base_stub,@sub_location='','','','','','','','','','','','','',''
+      @cmd,@f_pth,@pth,@fno,@fns,@fnb,@fnc,@fng,@fncb,@what,@lng,@lng_base,@base_path,@base_stub,@sub_location=
+       '', '',    '',  '',  '',  '',  '',  '',  '',   '',   '',  '',       '',        '',        ''
       @f_pths,@files,@files_mod,@paths,@mod,@act=Array.new(5){[]}
       @env=SiSU_Env::InfoEnv.new
       @lng_base=@env.language_default_set
@@ -316,7 +332,8 @@ module SiSU_Commandline
             FileUtils::mkdir_p(pt.to_s)
             pod_make_path=fullname + '/sisupod/doc/_sisu'
             make_instruct_array=sisu_document_make_pod.makefile_read(pod_make_path)
-            @make_instructions_pod=HeaderCommon.new(make_instruct_array).sisu_document_make_instructions
+            @make_instructions_pod=
+              HeaderCommon.new(make_instruct_array).sisu_document_make_instructions
             Dir.chdir(pt.realpath)
             system("
               chdir #{fullname}
@@ -410,7 +427,7 @@ module SiSU_Commandline
               lng: lng_is,
               lng_is: lng_is,
               url_base: nil,
-              url: nil
+              url: nil,
             }
           else  puts "file not found: #{x}"
           end
@@ -422,7 +439,16 @@ module SiSU_Commandline
           puts "#{x} in #{a.join(' ')}?"
         end
       end
-      { cmd: c, mod: m, what: w, paths: pth, files: f, f_pths: f_pths, lng: lng_is, lngs: lngs }
+      {
+        cmd: c,
+        mod: m,
+        what: w,
+        paths: pth,
+        files: f,
+        f_pths: f_pths,
+        lng: lng_is,
+        lngs: lngs,
+      }
     end
     def expand_numeric_shortcuts(a)
       shortcut=SiSU_Env::InfoProcessingFlag.new
diff --git a/lib/sisu/v5/param.rb b/lib/sisu/v5/param.rb
index 9dcdfc26..b2e50d41 100644
--- a/lib/sisu/v5/param.rb
+++ b/lib/sisu/v5/param.rb
@@ -65,15 +65,34 @@ module SiSU_Param
     require 'uri'
     require 'pstore'
   rescue LoadError
-    SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).error('uri or pstore NOT FOUND (LoadError)')
+    SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).
+      error('uri or pstore NOT FOUND (LoadError)')
   end
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env
   require_relative 'param_make'                         # param_make.rb
   require_relative 'param_identify_markup'              # param_identify_markup.rb
   @@date=SiSU_Env::InfoDate.new
-  @@proc=@@filename_txt=@@filename_texinfo=@@filename_lout_portrait=@@filename_lout_landscape=@@filename_html_scroll=@@filename_html_index=@@filename_html_segtoc=@@filename_semantic=@@filename_rss=@@newfile=@@drr=nil
-  @doc={ initialise: nil, markup: '', lnks: '', stmp: '', req: {} }
+  @@proc=
+    @@filename_txt=
+    @@filename_texinfo=
+    @@filename_lout_portrait=
+    @@filename_lout_landscape=
+    @@filename_html_scroll=
+    @@filename_html_index=
+    @@filename_html_segtoc=
+    @@filename_semantic=
+    @@filename_rss=
+    @@newfile=
+    @@drr=
+    nil
+  @doc={
+    initialise: nil,
+    markup: '',
+    lnks: '',
+    stmp: '',
+    req: {},
+  }
   @@yaml=@@yamladdr=nil
   @@trigger=nil
   @@lv,@@flag={},{}
@@ -99,7 +118,8 @@ module SiSU_Param
         # you may need to change Dir.pwd to @opt.f_pth[:pth] where the latter
         # has a path value that is different, however, f_pth is not always set!
         Dir.chdir(@opt.f_pth[:pth])
-        SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).error('-- bug alert --')
+        SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).
+          error('-- bug alert --')
         p 'f_pth ' + @opt.f_pth[:pth]
         p 'pwd   ' + Dir.pwd
       end
@@ -186,7 +206,11 @@ module SiSU_Param
           STDERR.puts "#{n} is #{s.class}: programming error, String expected #{__FILE__}:#{__LINE__}"
           s
         else
-          SiSU_Screen::Ansi.new('v',"*WARN* #{n} length #{s.length} exceeds set db field length #{l}, metadata dropped",@opt.fns).warn unless @opt.act[:quiet][:set]==:on
+          SiSU_Screen::Ansi.new(
+            'v',
+            "*WARN* #{n} length #{s.length} exceeds set db field length #{l}, metadata dropped",
+            @opt.fns
+          ).warn unless @opt.act[:quiet][:set]==:on
           nil
         end
       end
@@ -504,7 +528,10 @@ module SiSU_Param
             elsif @h['text']     then @h['text']
             elsif @h['main']     then @h['main']
             else
-              SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'WARNING Document Copyright missing; provide @rights: :copyright:').warn unless @opt.act[:quiet][:set]==:on
+              SiSU_Screen::Ansi.new(
+                @opt.act[:color_state][:set],
+                'WARNING Document Copyright missing; provide @rights: :copyright:'
+              ).warn unless @opt.act[:quiet][:set]==:on
               ''
             end
             l,n=Db[:col_info_note],'rights.copyright.text'
@@ -603,7 +630,10 @@ module SiSU_Param
               s +='License: ' + copyright.license
             end
             if s.empty?
-              SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'WARNING Document Rights information missing; provide @rights: :copyright:').warn unless @opt.act[:quiet][:set]==:on
+              SiSU_Screen::Ansi.new(
+                @opt.act[:color_state][:set],
+                'WARNING Document Rights information missing; provide @rights: :copyright:'
+              ).warn unless @opt.act[:quiet][:set]==:on
             else
               l,n=Db[:col_info_note],'rights.all'
               validate_length(s,l,n)
@@ -835,8 +865,10 @@ module SiSU_Param
       attr_accessor :make,:env,:path,:file,:fn,:fns,:fno,:fnb,:fnn,:fnt,:fnl,:flv,:fnz,:fnstex,:ocn,:sfx_src,:pdf,:file_type,:dir_out,:dir_tex,:dir_lout,:txt_path,:sisu,:sisu_version,:ruby_version,:title,:subtitle,:full_title,:html_title,:subtitle_tex,:creator,:classify,:author_home,:author,:author_title,:author_nationality,:authors,:authorship,:translator,:illustrator,:prepared_by,:digitized_by,:subject,:description,:publisher,:current_publisher,:contributor,:date,:date_created,:date_issued,:date_available,:date_valid,:date_modified,:date_translated,:date_added_to_site,:date_scheme,:date_created_scheme,:date_issued_scheme,:date_available_scheme,:date_valid_scheme,:date_modified_scheme,:type,:format,:identifier,:source,:language,:language_original,:relation,:coverage,:rights,:keywords,:comments,:abstract,:cls_loc,:cls_dewey,:cls_pg,:cls_isbn,:papersize,:papersize_array,:toc,:lv0,:lv1,:lv2,:lv3,:lv4,:lv5,:lv6,:lvs,:pagenew,:pagebreak,:pageline,:num_top,:bold_match_list,:italics_match_list,:substitution_match_list,:emphasis_set_to,:toc_lev_limit,:flag_endnotes,:flag_auto_endnotes,:flag_separate_endnotes,:flag_separate_endnotes_make,:markup,:markup_instruction,:flag_tables,:vocabulary,:doc_css,:yaml,:lnk,:links,:prefix_a,:prefix_b,:suffix,:information,:contact,:icon,:image,:ad_url,:ad_png,:ad_alt,:ad_began,:flag_promo,:promo,:ad_home,:stmp,:stmpd,:sc_filename,:sc_number,:sc_date,:sc_time,:sc_info,:yamladdr,:locale,:wc_lines,:wc_words,:wc_bytes,:file_encoding,:filesize,:user,:home,:hostname,:pwd,:firstseg,:programs,:author_copymark,:i18n,:lang,:lang_code_insert,:en,:notes,:dgst,:generated,:tags,:tag_array,:concord_make,:seg_names,:seg_autoname_safe,:set_header_title,:set_heading_top,:set_heading_seg,:heading_seg_first,:heading_seg_first_flag,:base_program,:ec,:opt,:sem_tag,:book_idx,:topic_register,:topic_register_array,:original,:writing_focus,:audio,:daisy,:home_button_image,:home_button_links,:footer_links,:cover_image,:man_section
       def initialize(fns_array,opt)
         @env=@path,@file=@fn=@fns=@fno=@fnb=@fnn=@fnt=@fnl=@flv=@fnz=@fnstex=@ocn=@sfx_src=@pdf=@file_type=@dir_out=@dir_tex=@dir_lout=@txt_path=@make=@flag_endnotes=@flag_auto_endnotes=@flag_separate_endnotes=@flag_separate_endnotes_make=@sisu=@sisu_version=@ruby_version=@title=@subtitle=@full_title=@html_title=@subtitle_tex=@creator=@classify=@author_home=@author=@author_title=@author_nationality=@translator=@illustrator=@prepared_by=@digitized_by=@subject=@description=@publisher=@current_publisher=@contributor=@date=@date_created=@date_issued=@date_available=@date_valid=@date_modified=@date_translated=@date_added_to_site=@date_scheme=@date_created_scheme=@date_issued_scheme=@date_available_scheme=@date_valid_scheme=@date_modified_scheme=@type=@format=@identifier=@source=@language=@language_original=@relation=@coverage=@rights=@keywords=@comments=@abstract=@cls_loc=@cls_dewey=@cls_pg=@cls_isbn=@papersize=@toc=@lv0=@lv1=@lv2=@lv3=@lv4=@lv5=@lv6=@pagenew=@pagebreak=@pageline=@num_top=@bold_match_list=@italics_match_list=@substitution_match_list=@emphasis_set_to=@toc_lev_limit=@flag_tables=@vocabulary=@doc_css=@yaml=@lnk=@links=@prefix_a=@prefix_b=@suffix=@information=@contact=@icon=@ad_url=@ad_png=@ad_alt=@ad_began=@promo=@ad_home=@stmp=@stmpd=@sc_filename=@sc_number=@sc_date=@sc_time=@sc_info=@yamladdr=@locale=@wc_lines=@wc_words=@wc_bytes=@file_encoding=@filesize=@firstseg=@programs=@author_copymark=@i18n=@lang=@lang_code_insert=@en=@notes=@dgst=@generated=@heading_seg_first=@base_program=@topic_register=@original=@writing_focus=@audio=@home_button_image=@home_button_links=@cover_image=@man_section=nil
-        @data,@path,@fns,@fno,@opt=fns_array,opt.pth,opt.fns,opt.fno,opt #@data used as data
-        @flag_tables,@set_header_title,@set_heading_top,@set_heading_seg,@heading_seg_first_flag,@flag_promo,@book_idx=false,false,false,false,false,false,false
+        @data,      @path,  @fns,   @fno,   @opt=
+          fns_array,opt.pth,opt.fns,opt.fno,opt #@data used as data
+        @flag_tables,@set_header_title,@set_heading_top,@set_heading_seg,@heading_seg_first_flag,@flag_promo,@book_idx=
+          false,     false,            false,           false,           false,                  false,      false
         @seg_autoname_safe=true
         @daisy,@sem_tag=false,false
         @authorship,@markup_instruction,@image='','','','' #check which other values should be set to empty rather than nil
@@ -1020,37 +1052,48 @@ module SiSU_Param
               @lv4=(makes[:lv4]) ? (makes[:lv4]) : @lv4
               @lv5=(makes[:lv5]) ? (makes[:lv5]) : @lv5
               @lv6=(makes[:lv6]) ? (makes[:lv6]) : @lv6
-              @num_top=(makes[:num_top]) \
+              @num_top=
+                (makes[:num_top]) \
                 ? (makes[:num_top]) \
                 : @num_top
-              @substitution_match_list=(makes[:substitution_match_list]) \
+              @substitution_match_list=
+                (makes[:substitution_match_list]) \
                 ? (makes[:substitution_match_list]) \
                 : @substitution_match_list
-              @bold_match_list=(makes[:bold_match_list]) \
+              @bold_match_list=
+                (makes[:bold_match_list]) \
                 ? (makes[:bold_match_list]) \
                 : @bold_match_list
-              @italics_match_list=(makes[:italics_match_list]) \
+              @italics_match_list=
+                (makes[:italics_match_list]) \
                 ? (makes[:italics_match_list]) \
                 : @italics_match_list
-              @emphasis_set_to=(makes[:emphasis_set_to]) \
+              @emphasis_set_to=
+                (makes[:emphasis_set_to]) \
                 ? (makes[:emphasis_set_to]) \
                 : @emphasis_set_to
-              @i18n=(makes[:i18n]) \
+              @i18n=
+                (makes[:i18n]) \
                 ? (makes[:i18n]) \
                 : @i18n
-              @man_section=(makes[:man_section]) \
+              @man_section=
+                (makes[:man_section]) \
                 ? (makes[:man_section]) \
                 : @man_section
-              @footer_links=(makes[:footer_links]) \
+              @footer_links=
+                (makes[:footer_links]) \
                 ? (makes[:footer_links]) \
                 : @footer_links
-              @home_button_links=(makes[:home_button_links]) \
+              @home_button_links=
+                (makes[:home_button_links]) \
                 ? (makes[:home_button_links]) \
                 : @home_button_links
-              @home_button_image=(makes[:home_button_image]) \
+              @home_button_image=
+                (makes[:home_button_image]) \
                 ? (makes[:home_button_image]) \
                 : @home_button_image
-              @cover_image=(makes[:cover_image]) \
+              @cover_image=
+                (makes[:cover_image]) \
                 ? (makes[:cover_image]) \
                 : @cover_image
             end
@@ -1117,10 +1160,14 @@ module SiSU_Param
               : ''
               title=@title.full.gsub(/\s*(?:<p>|<p \/>|<br>|<br \/>)\s*/,' ').
                 gsub(/~\{.+?\}~/,'')
-              SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'Parameters',%{#{title}#{creator}}).txt_grey if @opt.act[:verbose][:set]==:on
+              SiSU_Screen::Ansi.new(
+                @opt.act[:color_state][:set],
+                'Parameters',
+                %{#{title}#{creator}}
+              ).txt_grey if @opt.act[:verbose][:set]==:on
             end
             if not @book_idx \
-            and para =~/^=\{(.+?)\}\s*$/
+            and para =~/^=\{(.+?)\}[\s`]*\Z/m
               @book_idx=true
             end
             unless @code_flag
@@ -1151,11 +1198,11 @@ module SiSU_Param
             elsif para =~/^1~\s+(.+)$/
               t=$1
             end
-            unless @heading_seg_first_flag                                                                             # extract first segment name
+            unless @heading_seg_first_flag                                     # extract first segment name
               @heading_seg_first=t
               @heading_seg_first_flag=true
             end
-            if m                                                                                                       # list all segment names
+            if m                                                               # list all segment names
               @seg_names << m
               @set_heading_seg=true
               if m=~/^\d{1,3}/ \
@@ -1164,7 +1211,7 @@ module SiSU_Param
               end
             end
           end
-          para=para.gsub(/<:=(\S+?)>/,'{ c_\1.png 14x14 }image')                                                           # embedded symbol (image)
+          para=para.gsub(/<:=(\S+?)>/,'{ c_\1.png 14x14 }image')               # embedded symbol (image)
           if para !~/^%+\s/ \
           and para =~@rgx_image
             @ec[:image] << para.scan(@rgx_image).uniq
@@ -1178,7 +1225,11 @@ module SiSU_Param
         unless @make
           if (@opt.act[:verbose_plus][:set]==:on \
           || @opt.act[:maintenance][:set]==:on)
-            SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'@make:','header absent').warn
+            SiSU_Screen::Ansi.new(
+              @opt.act[:color_state][:set],
+              '@make:',
+              'header absent'
+            ).warn
           end
           @make=SiSU_Param::Parameters::MdMake.new('@make: ',@opt,@env).make
         end
@@ -1318,15 +1369,25 @@ module SiSU_Param
         if @en[:note] > 0 \
         and @en[:sum] > 0
           if @en[:sum] > 0
-          else SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'*WARN* both endnote styles used',"~{ #{@en[:sum]} }~ and ^~ #{@en[:mark]}").warn unless @opt.act[:quiet][:set]==:on
+          else
+            SiSU_Screen::Ansi.new(
+              @opt.act[:color_state][:set],
+              '*WARN* both endnote styles used',
+              "~{ #{@en[:sum]} }~ and ^~ #{@en[:mark]}"
+            ).warn unless @opt.act[:quiet][:set]==:on
           end
         end
         if @en[:mark] != @en[:note] \
         and @en[:note] > 0
           @en[:mismatch]=@en[:note] - @en[:mark]
-          SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'*WARN* endnote number mismatch',"endnotes: #{@en[:note]} != endnote reference marks: #{@en[:mark]} (difference = #{@en[:mismatch]})").warn unless @opt.act[:quiet][:set]==:on
+          SiSU_Screen::Ansi.new(
+            @opt.act[:color_state][:set],
+            '*WARN* endnote number mismatch',
+            "endnotes: #{@en[:note]} != endnote reference marks: #{@en[:mark]} (difference = #{@en[:mismatch]})"
+          ).warn unless @opt.act[:quiet][:set]==:on
           footnote_conversion_errors=File.new("#{Dir.pwd}/footnote_conversion_errors.txt",'a')
-          footnote_conversion_errors << "#{@fns}:\n\tendnotes: #{@en[:note]} != endnote reference marks: #{@en[:mark]} (difference = #{@en[:mismatch]})\n"
+          footnote_conversion_errors <<
+            "#{@fns}:\n\tendnotes: #{@en[:note]} != endnote reference marks: #{@en[:mark]} (difference = #{@en[:mismatch]})\n"
         end
         if not @title \
         or not defined? @title.main \
@@ -1335,7 +1396,11 @@ module SiSU_Param
           and  @opt.inspect =~/P/
             #@title=Md.new('Text Insert',@opt,@env).title
           else
-            SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'WARNING: Document Title missing','please provide @title:').warn unless @opt.act[:quiet][:set]==:on
+            SiSU_Screen::Ansi.new(
+              @opt.act[:color_state][:set],
+              'WARNING: Document Title missing',
+              'please provide @title:'
+            ).warn unless @opt.act[:quiet][:set]==:on
           end
         end
         if @author !~/[\S]/
@@ -1343,7 +1408,11 @@ module SiSU_Param
           and  @opt.inspect =~/P/
             #@creator=SiSU_Param::Md.new('Text Insert',@opt,@env).creator
           else
-            SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'WARNING: Document Author missing','please provide @creator: :author:').warn unless @opt.act[:quiet][:set]==:on
+            SiSU_Screen::Ansi.new(
+              @opt.act[:color_state][:set],
+              'WARNING: Document Author missing',
+              'please provide @creator: :author:'
+            ).warn unless @opt.act[:quiet][:set]==:on
           end
         end
         @struct={}
@@ -1426,7 +1495,10 @@ module SiSU_Param
             File.unlink(pstorefile) if FileTest.file?(pstorefile)
             if (@md.opt.act[:verbose_plus][:set]==:on \
             || @md.opt.act[:maintenance][:set]==:on)
-              SiSU_Screen::Ansi.new(@md.opt.act[:color_state][:set],"PStore -> #{pstorefile}").txt_grey
+              SiSU_Screen::Ansi.new(
+                @md.opt.act[:color_state][:set],
+                "PStore -> #{pstorefile}"
+              ).txt_grey
             end
             store=PStore.new(pstorefile)
             store.transaction do
@@ -1447,10 +1519,26 @@ module SiSU_Param
   class Instantiate
     def param_instantiate
       @@date=SiSU_Env::InfoDate.new
-      @@proc=@@filename_txt=@@filename_texinfo=@@filename_lout_portrait=@@filename_lout_landscape=@@filename_html_scroll=@@filename_html_index=@@filename_html_segtoc=@@filename_semantic=@@filename_rss=@@newfile=@@drr=nil
+      @@proc=
+        @@filename_txt=
+        @@filename_texinfo=
+        @@filename_lout_portrait=
+        @@filename_lout_landscape=
+        @@filename_html_scroll=
+        @@filename_html_index=
+        @@filename_html_segtoc=
+        @@filename_semantic=
+        @@filename_rss=
+        @@newfile=
+        @@drr=
+        nil
       @doc={
        initialise: nil,
-       markup: '', lnks: '', stmp: '', prefix_a: '', prefix_b: '',
+       markup: '',
+       lnks: '',
+       stmp: '',
+       prefix_a: '',
+       prefix_b: '',
        req: {}
       }
       @@yaml=@@yamladdr=nil
diff --git a/lib/sisu/v5/po4a.rb b/lib/sisu/v5/po4a.rb
index 990600aa..0b11600a 100644
--- a/lib/sisu/v5/po4a.rb
+++ b/lib/sisu/v5/po4a.rb
@@ -65,7 +65,7 @@ module SiSU_Po4a
   require_relative 'ao'                                 # ao.rb
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env
-  require_relative 'composite'                          # composite.rb
+  require_relative 'ao_composite'                       # ao_composite.rb
   require_relative 'shared_metadata'                    # shared_metadata.rb
   require_relative 'po4a_set'                           # po4a_set.rb
   include SiSU_Param
diff --git a/lib/sisu/v5/remote.rb b/lib/sisu/v5/remote.rb
index e06e7b33..191b2edc 100644
--- a/lib/sisu/v5/remote.rb
+++ b/lib/sisu/v5/remote.rb
@@ -118,7 +118,7 @@ module SiSU_Remote
       rescue LoadError
         SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).error('open-uri or pp NOT FOUND (LoadError)')
       end
-      require_relative 'composite'                      # composite.rb
+      require_relative 'ao_composite'                   # ao_composite.rb
       @rgx_image=/(?:^|[^_\\])\{\s*(\S+?\.(?:png|jpg|gif))/
       threads=[]
       for requested_page in @get_s
diff --git a/lib/sisu/v5/shared_metadata.rb b/lib/sisu/v5/shared_metadata.rb
index 4ada2db1..1f21af3f 100644
--- a/lib/sisu/v5/shared_metadata.rb
+++ b/lib/sisu/v5/shared_metadata.rb
@@ -297,6 +297,57 @@ module SiSU_Metadata
       end
       meta
     end
+    def metadata_alt
+      meta=[]
+      if @display_heading
+        @tag,@inf=%{<b><u>Document Metadata</u></b>},''
+        meta << self.meta_para
+      end
+      if defined? @md.title.main \
+      and @md.title.main=~/\S+/
+        @tag='title'
+        @inf=@md.title.main
+        meta << self.meta_para
+      end
+      if defined? @md.title.sub \
+      and @md.title.sub=~/\S+/
+        @tag='subtitle'
+        @inf=@md.title.sub
+        meta << self.meta_para
+      end
+      if defined? @md.creator.author \
+      and @md.creator.author=~/\S+/
+        @tag='author'
+        @inf=@md.creator.author
+        meta << self.meta_para
+      end
+      if defined? @md.creator.translator \
+      and @md.creator.translator=~/\S+/
+        @tag='translator'
+        @inf=@md.creator.translator
+        meta << self.meta_para
+      end
+      if defined? @md.creator.illustrator \
+      and @md.creator.illustrator=~/\S+/
+        @tag='illustrator'
+        @inf=@md.creator.illustrator
+        meta << self.meta_para
+      end
+      if defined? @md.rights.copyright.text \
+      and @md.rights.copyright.text=~/\S+/
+        @tag='copyright'
+        @inf=@md.rights.copyright.text # year & holder
+        @inf=@inf.gsub(/(?:Copyright|\(C\))+\s*/,'')
+        meta << self.meta_para
+      end
+      if defined? @md.rights.license \
+      and @md.rights.license=~/\S+/
+        @tag='license'
+        @inf=@md.rights.license
+        meta << self.meta_para
+      end
+      meta
+    end
     def processing_tags
       def make
         def language
@@ -756,6 +807,21 @@ module SiSU_Metadata
       end
       self
     end
+    def xml_docbook
+      def meta_para
+        inf_xml=char_enc(@inf).utf8
+        inf_xml=char_enc(inf_xml).br
+        <<WOK
+#{Ax[:tab]}<#{@tag}>
+#{Ax[:tab]*2}#{inf_xml}
+#{Ax[:tab]}</#{@tag}>
+WOK
+      end
+      def metadata
+        SiSU_Metadata::Summary.new(@md).metadata_alt
+      end
+      self
+    end
     def xml_sax
       def meta_para
         inf_xml=char_enc(@inf).utf8
diff --git a/lib/sisu/v5/sysenv.rb b/lib/sisu/v5/sysenv.rb
index cfd40460..7358ff40 100644
--- a/lib/sisu/v5/sysenv.rb
+++ b/lib/sisu/v5/sysenv.rb
@@ -6032,7 +6032,7 @@ WOK
       end
       def textile
         def ft
-         'textile_CONSTRUCTION_ZONE'
+         'textile' + DEVELOPER[:under_construction]
         end
         def dir
           set_path(ft).dir.abc
@@ -6053,7 +6053,7 @@ WOK
       end
       def asciidoc
         def ft
-         'asciidoc_CONSTRUCTION_ZONE'
+         'asciidoc' + DEVELOPER[:under_construction]
         end
         def dir
           set_path(ft).dir.abc
@@ -6074,7 +6074,7 @@ WOK
       end
       def markdown
         def ft
-         'markdown_CONSTRUCTION_ZONE'
+         'markdown' + DEVELOPER[:under_construction]
         end
         def dir
           set_path(ft).dir.abc
@@ -6095,7 +6095,7 @@ WOK
       end
       def rst
         def ft
-         'rst_CONSTRUCTION_ZONE'
+         'rst' + DEVELOPER[:under_construction]
         end
         def dir
           set_path(ft).dir.abc
@@ -6315,7 +6315,7 @@ WOK
       end
       def xml_docbook
         def ft
-         'docbook_CONSTRUCTION_ZONE'
+         'docbook' + DEVELOPER[:under_construction]
         end
         def dir
           set_path(ft).dir.abc
@@ -6339,7 +6339,7 @@ WOK
       end
       def xml_docbook_article
         def ft
-         'docbook'
+         'docbook' + DEVELOPER[:under_construction]
         end
         def dir
           set_path(ft).dir.abc
@@ -6363,7 +6363,7 @@ WOK
       end
       def xml_docbook_book
         def ft
-         'docbook_CONSTRUCTION_ZONE'
+         'docbook' + DEVELOPER[:under_construction]
         end
         def dir
           set_path(ft).dir.abc
@@ -6387,7 +6387,7 @@ WOK
       end
       def xml_fictionbook
         def ft
-         'fictionbook_CONSTRUCTION_ZONE'
+         'fictionbook' + DEVELOPER[:under_construction]
         end
         def dir
           set_path(ft).dir.abc
diff --git a/lib/sisu/v5/txt_shared.rb b/lib/sisu/v5/txt_shared.rb
index 0b6c1953..2bf633ea 100644
--- a/lib/sisu/v5/txt_shared.rb
+++ b/lib/sisu/v5/txt_shared.rb
@@ -62,8 +62,8 @@
 =end
 module SiSU_TextUtils
   class Wrap
-    def initialize(para='',n_char_max=76,n_indent=0,n_hang=nil)
-      @para,@n_char_max,@n_indent=para,n_char_max,n_indent
+    def initialize(para='',n_char_max=76,n_indent=0,n_hang=nil,post='')
+      @para,@n_char_max,@n_indent,@post,=para,n_char_max,n_indent,post
       @n_char_max_extend = n_char_max
       @n_hang=n_hang ? n_hang : @n_indent
     end
@@ -110,7 +110,10 @@ module SiSU_TextUtils
         end
         @oldword=word if word =~/\S+/
       end
-      spaces_hang + out.join(spaces_indent)
+      post=(@post.empty?) \
+      ? ''
+      : "\n" + (' '*@n_indent) +@post
+      spaces_hang + out.join(spaces_indent) + post
     end
     def line_wrap_indent1
       @n_indent,@n_hang=2,2
diff --git a/lib/sisu/v5/xhtml_epub2_segments.rb b/lib/sisu/v5/xhtml_epub2_segments.rb
index 8612696f..3c3b3263 100644
--- a/lib/sisu/v5/xhtml_epub2_segments.rb
+++ b/lib/sisu/v5/xhtml_epub2_segments.rb
@@ -80,6 +80,7 @@ module SiSU_XHTML_EPUB2_Seg
           filename_seg << @seg[:heading_endnotes] << @seg[:headings] << %{\n<div class="content">\n} << @seg[:endnote_all] << '</div>'
         elsif @type=='idx'
           @seg[:headings]=[]
+          txt_obj={ txt: 'Index', ocn_display: ''}
           format_seg=SiSU_XHTML_EPUB2_Format::FormatSeg.new(@md,txt_obj)
           @seg[:headings] << format_seg.title_heading1
           filename_seg << @seg[:heading_idx] << @seg[:headings] << %{\n<div class="content">\n} << @seg[:idx] << '</div>'
diff --git a/lib/sisu/v5/xml_docbook5.rb b/lib/sisu/v5/xml_docbook5.rb
index 98450520..3a59f839 100644
--- a/lib/sisu/v5/xml_docbook5.rb
+++ b/lib/sisu/v5/xml_docbook5.rb
@@ -70,6 +70,7 @@ module SiSU_XML_Docbook_Book
     include SiSU_TextUtils
   require_relative 'xml_shared'                         # xml_shared.rb
     include SiSU_XML_Munge
+  require_relative 'shared_metadata'                    # shared_metadata.rb
   class Source
     def initialize(opt)
       @opt=opt
@@ -135,7 +136,7 @@ module SiSU_XML_Docbook_Book
         def collapsed
           %w[ 0 1 2 3 4 5 ]
         end
-        def docbook(lc,chlv='')
+        def docbook_tag(lc,chlv='')
           case lc
           when 0 then 'book'
           when 1 then lc==chlv ? 'chapter' : 'section'
@@ -162,7 +163,7 @@ module SiSU_XML_Docbook_Book
       end
       def markup_text(data)
         data.each_with_index do |o,i|
-          if o.is ==:heading || o.is ==:para
+          if o.is ==:heading || o.is ==:para || o.is ==:open_close_tags
             o=@trans.markup_docbook(o) #unless o.obj==nil
           end
         end
@@ -189,6 +190,38 @@ module SiSU_XML_Docbook_Book
       end
       #def chapterlevel
       #end
+      def xml_head
+        [
+          '<docinfo>',
+          SiSU_Metadata::Summary.new(@md).xml_docbook.metadata,
+          '</docinfo>'
+        ].flatten
+      end
+      def code_output(o,ocn,filename_docbook)
+        filename_docbook.puts o.obj.gsub(/\n?(?:#{Mx[:br_line]}|#{Mx[:br_nl]})\n?/m,"\n")
+      end
+      def adjust_output(o,ocn,filename_docbook,splv)
+        if o.obj =~/#{Xx[:split]}/
+          outs=o.obj.split(/#{Xx[:split]}/)
+          outs.each do |out|
+            if out =~/<figure id=/m
+              out=out.gsub(/:spaces0:/m,
+                  %{#{spaces*(splv)}#{spaces}}).
+                gsub(/:spaces1:/m,
+                  %{#{spaces*(splv)}#{spaces*2}})
+              filename_docbook.puts out
+              filename_docbook.puts "#{spaces*3}#{ocn}"
+            else
+              unless out.empty?
+                filename_docbook.puts SiSU_TextUtils::Wrap.new(out,80,(splv*2+2),nil).line_wrap
+                filename_docbook.puts "#{spaces*3}#{ocn}"
+              end
+            end
+          end
+        else
+          filename_docbook.puts SiSU_TextUtils::Wrap.new(o.obj,80,(splv*2+2),nil,ocn).line_wrap
+        end
+      end
       def structure_build_collapsed(data)
         #output_file=@md.file.output_path.xml_docbook_book.dir + '/' + @md.file.base_filename.xml_docbook_book
         file=SiSU_Env::FileOp.new(@md)
@@ -197,10 +230,11 @@ module SiSU_XML_Docbook_Book
         @chlv=chlv=0
         doc_position=:head
         filename_docbook.puts head
+        filename_docbook.puts xml_head
         data.each_with_index do |o,i|
           if (defined? o.ocn and not o.ocn.nil?)
             ocn=(@make.build.ocn?) \
-            ? "\n#{Dx[:ocn_o]}#{o.ocn}#{Dx[:ocn_c]}"
+            ? "<!-- o#{o.ocn} -->"
             : ''
             id=%{ id="o#{o.ocn}" }
           else
@@ -217,16 +251,40 @@ module SiSU_XML_Docbook_Book
               doc_position=:body_and_tail
             else
               filename_docbook.puts structure_build_tag_close(o.lc,h)
-              filename_docbook.puts  %{#{spaces*(o.lc)}<#{tags.docbook(o.lc,chlv)}#{tag_id}>
+              filename_docbook.puts  %{#{spaces*(o.lc)}<#{tags.docbook_tag(o.lc,chlv)}#{tag_id}>
 #{spaces*o.lc}<title#{id}>
 }
             end
-            filename_docbook.puts SiSU_TextUtils::Wrap.new(o.obj + ocn,80,(@splv*2+2)).line_wrap
+            adjust_output(o,ocn,filename_docbook,@splv)
             filename_docbook.puts %{#{spaces*o.lc}</title>}
             h=o.lc
-          elsif (o.of ==:para or o.of ==:block)
+          elsif o.of ==:layout \
+          and o.is ==:open_close_tags
+            xml_tag=case o.sym
+            when :quote_open then '<blockquote>'
+            when :quote_close then '</blockquote>'
+            else ''
+            end
+            unless xml_tag.empty?
+              filename_docbook.puts "#{spaces*(@splv)}#{xml_tag}"
+            end
+          elsif o.of ==:block
+            if o.is ==:table
+              filename_docbook.puts SiSU_Tables::TableXMLdocbook.new(o,id).table.obj
+            elsif o.is ==:code
+              filename_docbook.puts "#{spaces*(@splv)}<para#{id}>"
+              filename_docbook.puts "#{spaces*(@splv+1)}<programlisting>"
+              code_output(o,ocn,filename_docbook)
+              filename_docbook.puts "#{spaces*(@splv+1)}</programlisting>"
+              filename_docbook.puts "#{spaces*(@splv)}</para>"
+            else
+              filename_docbook.puts "#{spaces*(@splv)}<para#{id}>"
+              adjust_output(o,ocn,filename_docbook,@splv)
+              filename_docbook.puts "#{spaces*(@splv)}</para>"
+            end
+          elsif o.of ==:para
             filename_docbook.puts "#{spaces*(@splv)}<para#{id}>"
-            filename_docbook.puts SiSU_TextUtils::Wrap.new(o.obj + ocn,80,(@splv*2+2)).line_wrap
+            adjust_output(o,ocn,filename_docbook,@splv)
             filename_docbook.puts "#{spaces*(@splv)}</para>"
           end
         end
@@ -237,40 +295,40 @@ module SiSU_XML_Docbook_Book
         x=[]
         case h
         when 0
-          x << "#{spaces*0}</#{tags.docbook(0)}>"       if (lc <= 0)
+          x << "#{spaces*0}</#{tags.docbook_tag(0)}>"       if (lc <= 0)
         when 1
-          x << "#{spaces*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
-          x << "#{spaces*0}</#{tags.docbook(0)}>"       if (lc <= 0)
+          x << "#{spaces*1}</#{tags.docbook_tag(1,@chlv)}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.docbook_tag(0)}>"       if (lc <= 0)
         when 2
-          x << "#{spaces*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
-          x << "#{spaces*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
-          x << "#{spaces*0}</#{tags.docbook(0)}>"       if (lc <= 0)
+          x << "#{spaces*2}</#{tags.docbook_tag(2,@chlv)}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.docbook_tag(1,@chlv)}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.docbook_tag(0)}>"       if (lc <= 0)
         when 3
-          x << "#{spaces*3}</#{tags.docbook(3,@chlv)}>" if (lc <= 3)
-          x << "#{spaces*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
-          x << "#{spaces*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
-          x << "#{spaces*0}</#{tags.docbook(0)}>"       if (lc <= 0)
+          x << "#{spaces*3}</#{tags.docbook_tag(3,@chlv)}>" if (lc <= 3)
+          x << "#{spaces*2}</#{tags.docbook_tag(2,@chlv)}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.docbook_tag(1,@chlv)}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.docbook_tag(0)}>"       if (lc <= 0)
         when 4
-          x << "#{spaces*4}</#{tags.docbook(4,@chlv)}>" if (lc <= 4)
-          x << "#{spaces*3}</#{tags.docbook(3,@chlv)}>" if (lc <= 3)
-          x << "#{spaces*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
-          x << "#{spaces*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
-          x << "#{spaces*0}</#{tags.docbook(0)}>"       if (lc <= 0)
+          x << "#{spaces*4}</#{tags.docbook_tag(4,@chlv)}>" if (lc <= 4)
+          x << "#{spaces*3}</#{tags.docbook_tag(3,@chlv)}>" if (lc <= 3)
+          x << "#{spaces*2}</#{tags.docbook_tag(2,@chlv)}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.docbook_tag(1,@chlv)}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.docbook_tag(0)}>"       if (lc <= 0)
         when 5
-          x << "#{spaces*5}</#{tags.docbook(5)}>"       if (lc <= 5)
-          x << "#{spaces*4}</#{tags.docbook(4,@chlv)}>" if (lc <= 4)
-          x << "#{spaces*5}</#{tags.docbook(3,@chlv)}>" if (lc <= 3)
-          x << "#{spaces*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
-          x << "#{spaces*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
-          x << "#{spaces*0}</#{tags.docbook(0)}>"       if (lc <= 0)
+          x << "#{spaces*5}</#{tags.docbook_tag(5)}>"       if (lc <= 5)
+          x << "#{spaces*4}</#{tags.docbook_tag(4,@chlv)}>" if (lc <= 4)
+          x << "#{spaces*5}</#{tags.docbook_tag(3,@chlv)}>" if (lc <= 3)
+          x << "#{spaces*2}</#{tags.docbook_tag(2,@chlv)}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.docbook_tag(1,@chlv)}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.docbook_tag(0)}>"       if (lc <= 0)
         when 6
-          x << "#{spaces*6}</#{tags.docbook(6)}>"       if (lc <= 6)
-          x << "#{spaces*5}</#{tags.docbook(5)}>"       if (lc <= 5)
-          x << "#{spaces*4}</#{tags.docbook(4,@chlv)}>" if (lc <= 4)
-          x << "#{spaces*3}</#{tags.docbook(3,@chlv)}>" if (lc <= 3)
-          x << "#{spaces*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
-          x << "#{spaces*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
-          x << "#{spaces*0}</#{tags.docbook(0)}>"       if (lc <= 0)
+          x << "#{spaces*6}</#{tags.docbook_tag(6)}>"       if (lc <= 6)
+          x << "#{spaces*5}</#{tags.docbook_tag(5)}>"       if (lc <= 5)
+          x << "#{spaces*4}</#{tags.docbook_tag(4,@chlv)}>" if (lc <= 4)
+          x << "#{spaces*3}</#{tags.docbook_tag(3,@chlv)}>" if (lc <= 3)
+          x << "#{spaces*2}</#{tags.docbook_tag(2,@chlv)}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.docbook_tag(1,@chlv)}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.docbook_tag(0)}>"       if (lc <= 0)
         end
         x.join("\n")
       end
diff --git a/lib/sisu/v5/xml_shared.rb b/lib/sisu/v5/xml_shared.rb
index fc972833..f1113495 100644
--- a/lib/sisu/v5/xml_shared.rb
+++ b/lib/sisu/v5/xml_shared.rb
@@ -460,28 +460,33 @@ module SiSU_XML_Munge
       clean(str)
     end
     def markup_docbook(dob='')                                  # work on, initially a copy of fictionbook!
-      dob.obj=dob.obj.gsub(/#{Mx[:en_a_o]}(.+?)#{Mx[:en_a_c]}/m,'<footnote>\1</footnote>').
-        gsub(/&/,'&amp;'). #sort
-        gsub(/#{Mx[:mk_o]}#([a-zA-Z]+)#{Mx[:mk_c]}/,'&\1;').
-        gsub(/(^|#{Mx[:gl_c]}|\s)&\s+/,'\1&amp; '). #sort
-        gsub(/#{Mx[:mk_o]}(#[0-9]+)#{Mx[:mk_c]}/,'&\1;')
-      dob.obj=dob.obj.gsub(/#{Mx[:br_line]}|#{Mx[:br_nl]}/,'<br />') unless dob.is==:table
-      dob.obj=dob.obj.gsub(/#{Mx[:fa_bold_o]}(.+?)#{Mx[:fa_bold_c]}/,'<b>\1</b>').
-        gsub(/#{Mx[:fa_italics_o]}(.+?)#{Mx[:fa_italics_c]}/,'<i>\1</i>').
-        gsub(/#{Mx[:fa_underscore_o]}(.+?)#{Mx[:fa_underscore_c]}/,'<u>\1</u>').
-        gsub(/#{Mx[:fa_superscript_o]}(.+?)#{Mx[:fa_superscript_c]}/,'<sup>\1</sup>').
-        gsub(/#{Mx[:fa_subscript_o]}(.+?)#{Mx[:fa_subscript_c]}/,'<sub>\1</sub>').
-        gsub(/#{Mx[:fa_insert_o]}(.+?)#{Mx[:fa_insert_c]}/,'<ins>\1</ins>').
-        gsub(/#{Mx[:fa_cite_o]}(.+?)#{Mx[:fa_cite_c]}/,'<cite>\1</cite>').
-        gsub(/#{Mx[:fa_strike_o]}(.+?)#{Mx[:fa_strike_c]}/,'<del>\1</del>').
-        gsub(/#{Mx[:fa_monospace_o]}(.+?)#{Mx[:fa_monospace_c]}/,'<tt>\1</tt>'). # tt, kbd
-        gsub(/#{Mx[:lnk_o]}\s*(\S+?\.(?:png|jpg|gif)).+?#{Mx[:lnk_c]}(?:#{Mx[:url_o]}\S+?#{Mx[:url_c]}|#{Mx[:rel_o]}\S+?#{Mx[:rel_c]}|image)/m,'<image xl:href="../../_sisu/image/\1" />'). #taken unmodified except path from fictionbook
-        gsub(/#{Mx[:url_o]}(.+?)#{Mx[:url_c]}/,"#{Dx[:url_o]}\\1#{Dx[:url_c]}").
-        gsub(/#{Mx[:mk_o]}:name#(\S+?)#{Mx[:mk_c]}/,'<a name="\1"></a>').
-        gsub(/#{Mx[:gl_bullet]}/m,'● '). #&nbsp; not available
-        gsub(/#{Mx[:nbsp]}/,' '). #&nbsp; not available
-        gsub(/<(p|br)>/,'<\1 />')
-      dob.obj=clean(dob.obj)
+      if dob.is !=:code
+        dob.obj=dob.obj.gsub(/#{Mx[:en_a_o]}(\d+)\s*(.+?)#{Mx[:en_a_c]}/m,'<footnote><para><!-- fn\1 -->\2</para></footnote>').
+          gsub(/\\\\/,'</para><para>').
+          gsub(/&/,'&amp;'). #sort
+          gsub(/#{Mx[:mk_o]}#([a-zA-Z]+)#{Mx[:mk_c]}/,'&\1;').
+          gsub(/(^|#{Mx[:gl_c]}|\s)&\s+/,'\1&amp; '). #sort
+          gsub(/#{Mx[:mk_o]}(#[0-9]+)#{Mx[:mk_c]}/,'&\1;')
+        dob.obj=dob.obj.gsub(/#{Mx[:br_line]}|#{Mx[:br_nl]}/,'<br />') unless dob.is==:table
+        dob.obj=dob.obj.gsub(/#{Mx[:fa_bold_o]}(.+?)#{Mx[:fa_bold_c]}/,'<b>\1</b>').
+          gsub(/#{Mx[:fa_italics_o]}(.+?)#{Mx[:fa_italics_c]}/,'<i>\1</i>').
+          gsub(/#{Mx[:fa_underscore_o]}(.+?)#{Mx[:fa_underscore_c]}/,'<u>\1</u>').
+          gsub(/#{Mx[:fa_superscript_o]}(.+?)#{Mx[:fa_superscript_c]}/,'<sup>\1</sup>').
+          gsub(/#{Mx[:fa_subscript_o]}(.+?)#{Mx[:fa_subscript_c]}/,'<sub>\1</sub>').
+          gsub(/#{Mx[:fa_insert_o]}(.+?)#{Mx[:fa_insert_c]}/,'<ins>\1</ins>').
+          gsub(/#{Mx[:fa_cite_o]}(.+?)#{Mx[:fa_cite_c]}/,'<cite>\1</cite>').
+          gsub(/#{Mx[:fa_strike_o]}(.+?)#{Mx[:fa_strike_c]}/,'<del>\1</del>').
+          gsub(/#{Mx[:fa_monospace_o]}(.+?)#{Mx[:fa_monospace_c]}/,'<tt>\1</tt>'). # tt, kbd
+          gsub(/#{Mx[:lnk_o]}\s*(\S+?\.(?:png|jpg|gif)).+?#{Mx[:lnk_c]}(?:#{Mx[:url_o]}\S+?#{Mx[:url_c]}|#{Mx[:rel_o]}\S+?#{Mx[:rel_c]}|image)/m,
+            %{#{Xx[:split]}:spaces0:<figure id="\\1">\n:spaces1:<title></title>\n:spaces1:<graphic fileref="images/\\1" align="center" width="50%"></graphic>\n:spaces0:</figure>#{Xx[:split]}}).
+          gsub(/#{Mx[:url_o]}(.+?)#{Mx[:url_c]}/,"#{Dx[:url_o]}\\1#{Dx[:url_c]}").
+          gsub(/#{Mx[:mk_o]}:name#(\S+?)#{Mx[:mk_c]}/,'<a name="\1"></a>').
+          gsub(/#{Mx[:gl_bullet]}/m,'● '). #&nbsp; not available
+          gsub(/#{Mx[:nbsp]}/,' '). #&nbsp; not available
+          gsub(/<(p|br)>/,'<\1 />')
+        dob.obj=clean(dob.obj)
+      else # codeblock
+      end
       dob
     end
     def markup_group(dob='')
diff --git a/lib/sisu/v5/xml_tables.rb b/lib/sisu/v5/xml_tables.rb
index 4ae41190..1587afbc 100644
--- a/lib/sisu/v5/xml_tables.rb
+++ b/lib/sisu/v5/xml_tables.rb
@@ -122,6 +122,64 @@ module SiSU_Tables
       @parablock
     end
   end
+  class TableXMLdocbook
+    @@tablehead=0
+    @@tablefoot=[] #watch
+    def initialize(table,id='')
+      @table_obj,@id=table,id
+      @vz=SiSU_Viz::Defaults.new
+    end
+    def spaces
+      Ax[:spaces]
+    end
+    def table
+      table_obj=@table_obj
+      if table_obj.obj !~/^<table\s/m
+        table_obj=table_rows_and_columns_array(table_obj)
+      else p __LINE__; p caller
+      end
+      table_obj
+    end
+    def table_rows_and_columns_array(table_obj) # provides basic (x)html table
+      table_rows,nr=[],0
+      table_obj.obj.split(Mx[:tc_c]).each do |table_row|
+        table_row_with_columns=table_row.split(Mx[:tc_p])
+        trc,nc=[],0
+        table_row_with_columns.each do |c|
+          c=c.gsub(/^(?:~|&nbsp;)$/,''). # tilde / empty cell
+            gsub(/&nbsp;/,' ').
+            gsub(/<:br>/,'<br />')
+          trc <<= if table_obj.head_ and nr==0
+            %{#{spaces*6}<entry>#{c}</entry>\n}
+          else %{#{spaces*6}<entry>#{c}</entry>\n}
+          end
+          nc+=1
+        end
+        trc=(trc.is_a?(Array)) ? trc.flatten.join : trc
+        trc = if table_obj.head_ and nr==0
+          "#{spaces*4}<thead>\n#{spaces*5}<row>\n#{trc}#{spaces*5}</row>\n#{spaces*4}</thead>\n#{spaces*4}<tbody>\n"
+        else
+          "#{spaces*5}<row>\n#{trc}#{spaces*5}</row>\n"
+        end
+        nr+=1
+        table_rows << trc
+      end
+      tbody_close=if table_obj.head_
+        "#{spaces*4}</tbody>"
+      else ''
+      end
+      table_rows=table_rows.flatten.join
+      # include table_id <table id=''>
+      table_obj.obj=%{#{spaces*3}<para #{@id}>
+#{spaces*4}<table>
+#{spaces*4}<tgroup cols="#{table_obj.cols}" align="char">
+#{table_rows}#{tbody_close}
+#{spaces*4}</tgroup>
+#{spaces*4}</table>
+#{spaces*3}</para>}
+      table_obj
+    end
+  end
   class TableXMLexp <Table
     @@tablehead=0
     @@tablefoot=[]
diff --git a/lib/sisu/v6/ao.rb b/lib/sisu/v6/ao.rb
index 064436ae..370bb7e1 100644
--- a/lib/sisu/v6/ao.rb
+++ b/lib/sisu/v6/ao.rb
@@ -162,7 +162,9 @@ module SiSU_AO
           : @opt.fns
           @@idx_arr[:sst]=[]
         end
-        ao=(@@idx_arr[:sst].empty?) ? read_idx_sst : @@idx_arr[:sst].dup #check
+        ao=(@@idx_arr[:sst].empty?) \
+        ? read_idx_sst
+        : @@idx_arr[:sst].dup #check
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -181,7 +183,9 @@ module SiSU_AO
           : @opt.fns
           @@idx_arr[:tex]=[]
         end
-        ao=(@@idx_arr[:tex].empty?) ? read_idx_raw : @@idx_arr[:tex].dup #check
+        ao=(@@idx_arr[:tex].empty?) \
+        ? read_idx_raw
+        : @@idx_arr[:tex].dup #check
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -200,7 +204,9 @@ module SiSU_AO
           : @opt.fns
           @@idx_arr[:html]=[]
         end
-        ao=(@@idx_arr[:html].empty?) ? read_idx_html : @@idx_arr[:html].dup
+        ao=(@@idx_arr[:html].empty?) \
+        ? read_idx_html
+        : @@idx_arr[:html].dup
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -219,7 +225,9 @@ module SiSU_AO
           : @opt.fns
           @@idx_arr[:xthml]=[]
         end
-        ao=(@@idx_arr[:xhtml].empty?) ? read_idx_xhtml : @@idx_arr[:xhtml].dup
+        ao=(@@idx_arr[:xhtml].empty?) \
+        ? read_idx_xhtml
+        : @@idx_arr[:xhtml].dup
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -238,7 +246,9 @@ module SiSU_AO
           : @opt.fns
           @@map_arr[:nametags]=[]
         end
-        ao=(@@map_arr[:nametags].empty?) ? read_map_nametags : @@map_arr[:nametags].dup
+        ao=(@@map_arr[:nametags].empty?) \
+        ? read_map_nametags
+        : @@map_arr[:nametags].dup
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -257,7 +267,9 @@ module SiSU_AO
           : @opt.fns
           @@map_arr[:ocn_htmlseg]=[]
         end
-        ao=(@@map_arr[:ocn_htmlseg].empty?) ? read_map_ocn_htmlseg : @@map_arr[:ocn_htmlseg].dup
+        ao=(@@map_arr[:ocn_htmlseg].empty?) \
+        ? read_map_ocn_htmlseg
+        : @@map_arr[:ocn_htmlseg].dup
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -273,8 +285,14 @@ module SiSU_AO
         tell=(@opt.act[:verbose][:set]==:on \
         || @opt.act[:verbose_plus][:set]==:on \
         || @opt.act[:maintenance][:set]==:on) \
-        ? SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'Document Abstraction')
-        : SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'Document Abstraction',"[#{@opt.f_pth[:lng_is]}] #{@opt.fno}")
+        ? SiSU_Screen::Ansi.new(
+            @opt.act[:color_state][:set],
+            'Document Abstraction'
+          )
+        : SiSU_Screen::Ansi.new(
+            @opt.act[:color_state][:set],
+            'Document Abstraction',"[#{@opt.f_pth[:lng_is]}] #{@opt.fno}"
+          )
         tell.blue_title_hi
       end
       fn=(@fnx && @fnx =~/\.ss[tmi]$/) \
@@ -293,9 +311,16 @@ module SiSU_AO
         cf=SiSU_Env::CreateFile.new(fn)
         if (@opt.act[:verbose][:set]==:on \
         || @opt.act[:verbose_plus][:set]==:on)
-          SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],@opt.fns,"~meta/#{@opt.fns}.meta").output
+            SiSU_Screen::Ansi.new(
+            @opt.act[:color_state][:set],
+            @opt.fns,
+            "~meta/#{@opt.fns}.meta"
+          ).output
         elsif @opt.act[:maintenance][:set]==:on
-          SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],"ao -> #{cf.meta}").txt_grey
+          SiSU_Screen::Ansi.new(
+            @opt.act[:color_state][:set],
+            "ao -> #{cf.meta}"
+          ).txt_grey
         end
       end
       ao.each {|s| ao_array << s}
@@ -435,7 +460,8 @@ module SiSU_AO
           if defined? o.ocn
             case o.is
             when :heading
-              filename_debug.puts "#{o.is.to_s} #{o.lv}~#{o.name} odv=#{o.odv} osp=#{o.osp} [#{o.ocn}] -->\n\t#{o.obj}"
+              filename_debug.puts
+                "#{o.is.to_s} #{o.lv}~#{o.name} odv=#{o.odv} osp=#{o.osp} [#{o.ocn}] -->\n\t#{o.obj}"
             end
           end
         end
@@ -507,23 +533,37 @@ module SiSU_AO
       reset
       data_txt=@data
       data_txt=
-        SiSU_AO_Insertions::Insertions.new(@md,data_txt).expand_insertions?                        # ao_expand_insertions.rb
+        SiSU_AO_Insertions::Insertions.new(@md,data_txt).            # ao_expand_insertions.rb
+          expand_insertions?
       data_txt=
-        SiSU_AO_MiscArrangeText::SI.new(@md,data_txt).prepare_text                                 # ao_misc_arrange.rb
-      data_obj,metadata=
-        SiSU_AO_DocumentStructureExtract::Build.new(@md,data_txt).identify_parts                   # ao_doc_str.rb
+        SiSU_AO_MiscArrangeText::SI.new(@md,data_txt).               # ao_misc_arrange.rb
+          prepare_text
+      data_obj,
+        metadata=
+          SiSU_AO_DocumentStructureExtract::Build.new(@md,data_txt). # ao_doc_str.rb
+            identify_parts
       data_obj=
-        SiSU_AO_Syntax::Markup.new(@md,data_obj).songsheet                                         # ao_syntax.rb
-      data_obj,endnote_array=
-        SiSU_AO_CharacterCheck::Check.new(data_obj).character_check_and_oldstyle_endnote_array     # ao_character_check.rb
+        SiSU_AO_Syntax::Markup.new(@md,data_obj).songsheet           # ao_syntax.rb
+      data_obj,
+        endnote_array=
+          SiSU_AO_CharacterCheck::Check.new(data_obj).               # ao_character_check.rb
+            character_check_and_oldstyle_endnote_array
       data_obj=
-         SiSU_AO_Images::Images.new(@md,data_obj).images                                           # ao_images.rb
-      data_obj,tags_map,ocn_html_seg_map=
-        SiSU_AO_Numbering::Numbering.new(@md,data_obj).numbering_song                              # ao_numbering.rb
-      data_obj,book_index_rel,book_index_rel_html_seg,html_idx,xhtml_idx=
-        SiSU_AO_BookIndex::BookIndex.new(@md,data_obj,@env).indexing_song if @md.book_idx          # ao_idx.rb
+         SiSU_AO_Images::Images.new(@md,data_obj).images             # ao_images.rb
+      data_obj,
+        tags_map,
+        ocn_html_seg_map=
+          SiSU_AO_Numbering::Numbering.new(@md,data_obj).            # ao_numbering.rb
+            numbering_song
+      data_obj,
+        book_index_rel,
+        book_index_rel_html_seg,
+        html_idx,xhtml_idx=
+          SiSU_AO_BookIndex::BookIndex.new(@md,data_obj,@env).       # ao_idx.rb
+            indexing_song if @md.book_idx
       data_obj=
-        SiSU_AO_Endnotes::Endnotes.new(@md,data_obj,endnote_array).endnotes                        # ao_endnotes.rb
+        SiSU_AO_Endnotes::Endnotes.new(@md,data_obj,endnote_array).  # ao_endnotes.rb
+          endnotes
       outputdata=data_obj
       if (@md.opt.act[:ao][:set]==:on \
       || @md.opt.act[:maintenance][:set]==:on)
diff --git a/lib/sisu/v6/ao_character_check.rb b/lib/sisu/v6/ao_character_check.rb
index 8774d7a8..22655797 100644
--- a/lib/sisu/v6/ao_character_check.rb
+++ b/lib/sisu/v6/ao_character_check.rb
@@ -80,9 +80,9 @@ module SiSU_AO_CharacterCheck
             gsub(/(#{Mx[:en_a_o]})\s*\s+/,'\1 ').
             gsub(/(~\{\s*)\s+/,'\1 ').
             gsub(/ \/\//,"#{Mx[:br_line]}").
-            gsub(/<br>/,"#{Mx[:br_line]}").                              #needed by xml, xhtml etc.
+            gsub(/<br>/,"#{Mx[:br_line]}").                #needed by xml, xhtml etc.
             gsub(/\t/,' ').
-            gsub(/\342\200\231/u,"'"). #if dob =~/’/  #Avoid #&lsquo; &rsquo; #&ldquo; &rdquo;
+            gsub(/\342\200\231/u,"'"). #if dob =~/’/       #Avoid #&lsquo; &rsquo; #&ldquo; &rdquo;
             gsub(/\\copy(?:right)?\b/,'&#169;').
             gsub(/\\trademark\b|\\tm\b/,'&#174;')
           dob.obj=dob.obj + "\n"
@@ -91,8 +91,9 @@ module SiSU_AO_CharacterCheck
             when /\^~/                                     #% Note must do this first (earlier loop) and then enter gathered data into ~^\d+
               sub_dob=dob.obj.dup
               @endnote_array << sub_dob.gsub(/\n/,'').
-                gsub(/\^~\s+(.+)\s*/,%{#{Mx[:en_a_o]}#{endnote_no} \\1 #{Mx[:en_a_c]}}).
-                strip
+                gsub(/\^~\s+(.+)\s*/,
+                  %{#{Mx[:en_a_o]}#{endnote_no} \\1 #{Mx[:en_a_c]}}).
+                  strip
               endnote_no+=1
               dob=nil if dob.obj =~/\^~ .+/                #watch, removes 'binary' endnote now in endnote array for later insertion
             end
diff --git a/lib/sisu/v6/composite.rb b/lib/sisu/v6/ao_composite.rb
index 2afff1bf..2f864228 100644
--- a/lib/sisu/v6/composite.rb
+++ b/lib/sisu/v6/ao_composite.rb
@@ -51,7 +51,7 @@
 
  * Git
    <http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=summary>
-   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v6/composite.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v6/ao_composite.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
@@ -74,7 +74,8 @@ module SiSU_Assemble
     end
     def download_images(images_info)
       path="#{@env.processing_path.processing}/external_document/image"
-      FileUtils::mkdir_p(path) unless FileTest.directory?(path)
+      FileUtils::mkdir_p(path) \
+        unless FileTest.directory?(path)
       download_from=images_info.shift
       images_info.each do |i|
         image="#{path}/#{i}"
@@ -85,7 +86,8 @@ module SiSU_Assemble
         imagefile.close
       end
       output_path="#{@env.path.webserv}/#{@env.path.stub_pwd}/_sisu/image_external"
-      FileUtils::mkdir_p(output_path) unless FileTest.directory?(output_path)
+      FileUtils::mkdir_p(output_path) \
+        unless FileTest.directory?(output_path)
       SiSU_Env::SystemCall.new("#{path}/*",output_path,'q').rsync
     end
   end
@@ -99,8 +101,8 @@ module SiSU_Assemble
       begin
         pwd=Dir.pwd
         Dir.chdir(@opt.f_pth[:pth])
-        @fns_array=IO.readlines(@opt.fno,'')
-        assembled=insertions?
+        fns_array=IO.readlines(@opt.fno,'')
+        assembled=insertions?(fns_array)
         write(assembled)
         Dir.chdir(pwd)
       rescue
@@ -141,7 +143,9 @@ module SiSU_Assemble
         end
         if not @code_flag \
         and i !~/^%+\s/
-          i=i.gsub(/^([123]|:?[ABCD])~\? /,'% [conditional heading:] \1~ ')    #off conditional heading (consider syntax)
+          i=i.
+            gsub(/^([123]|:?[ABCD])~\? /,
+              '% [conditional heading:] \1~ ')    #off conditional heading (consider syntax)
           if i =~/^@\S+?:/
             i=i.gsub(/\n/m,"\n%  ").
               gsub(/\n%\s+$/m,'').
@@ -161,27 +165,36 @@ module SiSU_Assemble
       end
       file
     end
-    def insertions?
-      data=@fns_array
+    def insertions?(fns_array)
       tuned_file,imagedir=[],[]
-      SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'Composite Document',"[#{@opt.f_pth[:lng_is]}] #{@opt.fno}").grey_title_hi unless @opt.act[:quiet][:set]==:on
-      data.each do |para|
+      SiSU_Screen::Ansi.new(
+        @opt.act[:color_state][:set],
+        'Composite Document',
+        "[#{@opt.f_pth[:lng_is]}] #{@opt.fno}",
+      ).grey_title_hi unless @opt.act[:quiet][:set]==:on
+      fns_array.each do |para|
         if para =~/^<<\s+(\S+?\.ss[it])$/
           loadfile=$1.strip
-          src_ssm=@opt.fns.sub(/\.ssm\.sst/,'.ssm')
           if (@opt.act[:verbose][:set]==:on \
           || @opt.act[:verbose_plus][:set]==:on \
           || @opt.act[:maintenance][:set]==:on)
-            SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'loading:',loadfile).txt_grey
+            SiSU_Screen::Ansi.new(
+              @opt.act[:color_state][:set],
+              'loading:',
+              loadfile,
+            ).txt_grey
           end
-          tuned_file << if loadfile =~ /(?:https?|file):\/\/\S+?\.ss[ti]$/ # and NetTest
-            imagedir = /((?:https?|file):\/\/\S+?)\/[^\/]+?\.ss[ti]$/.match(loadfile).captures.join + '/_sisu/image' #watch
+          tuned_file << if loadfile =~ /(?:https?|file):\/\/\S+?\.ss[it]$/ # and NetTest
+            imagedir = /((?:https?|file):\/\/\S+?)\/[^\/]+?\.ss[it]$/.
+              match(loadfile).captures.join +
+              '/_sisu/image' #watch
             begin
               require 'uri'
               require 'open-uri'
               require 'pp'
             rescue LoadError
-              SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).error('uri, open-uri or pp NOT FOUND (LoadError)')
+              SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).
+                error('uri, open-uri or pp NOT FOUND (LoadError)')
             end
             image_uri=URI.parse(imagedir)
             insert=open(loadfile)
@@ -191,13 +204,12 @@ module SiSU_Assemble
             @@imager[image_uri] ||=[]
             @@imager[image_uri] << file[:images]
             file[:prepared]
-          elsif loadfile =~ /\.ss[ti]$/ \
+          elsif loadfile =~ /\.ss[it]$/ \
           and FileTest.file?(loadfile)
             insert_array=IO.readlines(loadfile,'')
             file=insertion(loadfile,insert_array)
             file[:prepared]
           else
-            cX=SiSU_Screen::Ansi.new(@opt.act[:color_state][:set]).cX
             STDERR.puts %{SKIPPED processing file: [#{@opt.lng}] "#{@opt.fns}" it requires an invalid or non-existent file: "#{loadfile}"}
             $process_document = :skip; break #remove this line to continue processing documents that have missing include files
             para
@@ -225,8 +237,8 @@ module SiSU_Assemble
     def read
       begin
         @opt.fns=@opt.fns.gsub(/\.ssm\.sst$/,'.ssm') #FIX earlier, hub
-        @fns_array=IO.readlines(@opt.fns,'')
-        insertions?
+        fns_array=IO.readlines(@opt.fns,'')
+        insertions?(fns_array)
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -234,26 +246,32 @@ module SiSU_Assemble
       ensure
       end
     end
-    def insertions?
-      data=@fns_array
+    def insertions?(fns_array)
       tuned_file=[]
-      SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'Composite Document',@opt.fno).grey_title_hi unless @opt.act[:quiet][:set]==:on
+      SiSU_Screen::Ansi.new(
+        @opt.act[:color_state][:set],
+        'Composite Document',
+        @opt.fno
+      ).grey_title_hi unless @opt.act[:quiet][:set]==:on
       @ssm=[@opt.fns]
-      data.each do |para|
+      fns_array.each do |para|
         if para =~/^<<\s+(\S+?\.ss[it])$/
           loadfile=$1.strip
           if (@opt.act[:verbose][:set]==:on \
           || @opt.act[:verbose_plus][:set]==:on \
           || @opt.act[:maintenance][:set]==:on)
-            SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'loading:',loadfile).txt_grey
+            SiSU_Screen::Ansi.new(
+              @opt.act[:color_state][:set],
+              'loading:',
+              loadfile,
+            ).txt_grey
           end
-          tuned_file << if loadfile =~ /(?:https?|file):\/\/\S+?\.ss[ti]$/
+          tuned_file << if loadfile =~ /(?:https?|file):\/\/\S+?\.ss[it]$/
             @ssm << loadfile
-          elsif loadfile =~ /\.ss[ti]$/ \
+          elsif loadfile =~ /\.ss[it]$/ \
           and FileTest.file?(loadfile)
             @ssm << loadfile
           else
-            cX=SiSU_Screen::Ansi.new(@opt.act[:color_state][:set]).cX
             STDERR.puts %{SKIPPED processing file: [#{@opt.lng}] "#{@opt.fns}" it requires an invalid or non-existent file: "#{loadfile}"}
             $process_document = :skip; break #remove this line to continue processing documents that have missing include files
             para
diff --git a/lib/sisu/v6/ao_doc_objects.rb b/lib/sisu/v6/ao_doc_objects.rb
index ee229200..44660469 100644
--- a/lib/sisu/v6/ao_doc_objects.rb
+++ b/lib/sisu/v6/ao_doc_objects.rb
@@ -74,10 +74,10 @@ module SiSU_AO_DocumentStructure
       @of=:meta
     end
     def metadata(tags)
-      of=     @of                                                              #Symbol, classification - group
-      is=     :meta                                                            #Symbol, classification - specific type
-      tags=   tags        || ((defined? o.tags)      ? o.tags    : {})         #String, metadata type/tag
-      obj=     nil
+      of      = @of                                                                 #Symbol, classification - group
+      is      = :meta                                                               #Symbol, classification - specific type
+      tags    = tags            || ((defined? o.tags)      ? o.tags        : {})    #String, metadata type/tag
+      obj     = nil
       @of,@is,@tags,@obj=of,is,tags,obj
       self
     end
@@ -89,12 +89,12 @@ module SiSU_AO_DocumentStructure
       @of=:meta
     end
     def metadata(h,o=nil)
-      of=     @of                                                              #Symbol, classification - group
-      is=     :meta                                                            #Symbol, classification - specific type
-      tag=    h[:tag]     || ((defined? o.tag)       ? o.tag     : nil)        #String, metadata type/tag
-      obj=    h[:obj]     || ((defined? o.obj)       ? o.obj     : nil)        #String, text content
-      tmp=    h[:tmp]     || ((defined? o.tmp)       ? o.tmp     : nil)        #available for processing, empty after use
-      digest= h[:digest]  || ((defined? o.digest)    ? o.digest  : nil)        #hash digests, sha512, sha256 or md5
+      of      = @of                                                                 #Symbol, classification - group
+      is      = :meta                                                               #Symbol, classification - specific type
+      tag     = h[:tag]         || ((defined? o.tag)       ? o.tag         : nil)   #String, metadata type/tag
+      obj     = h[:obj]         || ((defined? o.obj)       ? o.obj         : nil)   #String, text content
+      tmp     = h[:tmp]         || ((defined? o.tmp)       ? o.tmp         : nil)   #available for processing, empty after use
+      digest  = h[:digest]      || ((defined? o.digest)    ? o.digest      : nil)   #hash digests, sha512, sha256 or md5
       @of,@is,@tag,@obj,@digest,@tmp=of,is,tag,obj,digest,tmp
       self
     end
@@ -142,44 +142,47 @@ module SiSU_AO_DocumentStructure
       and (h[:ln] and h[:ln].to_s=~/[0-9]/)
         h[:lv]=heading_lv(h[:ln])
       end
-      of=     @of                                                              #Symbol, classification - group
-      is=     :heading                                                         #Symbol, classification - specific type
-      name=   h[:name]    || ((defined? o.name)      ? o.name    : nil)        #String, named object?
-      tags=   h[:tags]    || ((defined? o.tags)      ? o.tags    : [])         #Array, associated object tags, names if any
-      obj=    h[:obj]     || ((defined? o.obj)       ? o.obj     : nil)        #String, text content
-      idx=    h[:idx]     || ((defined? o.idx)       ? o.idx     : nil)        #String, book index provided?
-      ocn=    h[:ocn]     || ((defined? o.ocn)       ? o.ocn     : nil)        #Integer, sequential on substantive-content objects
-      odv=    h[:odv]     || ((defined? o.odv)       ? o.odv     : nil)
-      osp=    h[:osp]     || ((defined? o.osp)       ? o.osp     : nil)
-      node=   h[:node]    || ((defined? o.node)      ? o.node    : nil)        #[Node relationship doc structure info]
-      parent= h[:parent]  || ((defined? o.parent)    ? o.parent  : nil)        #[Node parent]
-      lv=     h[:lv]      || ((defined? o.lv)        ? o.lv      : nil)        #Alpha-numeric, document structure as used in markup, A-D then 1-6
-      ln=     h[:ln]      || ((defined? o.ln)        ? o.ln      : nil)        #Integer, document structure level, for convenience in processing 1-9
-      lc=     h[:lc]      || ((defined? o.lc)        ? o.lc      : nil)        #Integer, document structure collapsed level, convenience (collapse sisu's dual level document structure for markup with simple linear structure)
-      use_=if lv \
-      and lv == '1'
-        h[:use_]    || ((defined? o.use_)      ? o.use_    : :ok)
-      elsif not lv.empty? \
-      and lv =~ /[A-D2-3]/
-        :ok
-      else
-         h[:use_]    || ((defined? o.use_)      ? o.use_    : :ok)
-      end
-      ocn_=if h[:ocn_].nil? then ((defined? o.ocn_)  ? o.ocn_    : true)       #Bool? no ocn, non-substantive content, do not include in toc #consider
-      else  h[:ocn_]
-      end
-      autonum_= if h[:autonum_].nil? then ((defined? o.autonum_) ? o.autonum_ : true) #Bool? auto-numbering if requested default on, false suppresses
-      else  h[:autonum_]
-      end
-      note_=  h[:note_]   || ((defined? o.note_)     ? o.note_   : false)      #Bool, endnotes/footnotes? (processing optimization)
-      digest= h[:digest]  || ((defined? o.digest)    ? o.digest  : nil)        #hash digests, sha512, sha256 or md5
-      tmp=    h[:tmp]     || ((defined? o.tmp)       ? o.tmp     : nil)        #available for processing, empty after use
-      @of,@is,@lv,@ln,@lc,@name,@tags,@obj,@idx,@ocn,@odv,@osp,@node,@parent,@use_,@ocn_,@note_,@autonum_,@digest,@tmp=of,is,lv,ln,lc,name,tags,obj,idx,ocn,odv,osp,node,parent,use_,ocn_,note_,autonum_,digest,tmp
+      of      = @of                                                                 #Symbol, classification - group
+      is      = :heading                                                            #Symbol, classification - specific type
+      name    = h[:name]        || ((defined? o.name)      ? o.name        : nil)   #String, named object?
+      tags    = h[:tags]        || ((defined? o.tags)      ? o.tags        : [])    #Array, associated object tags, names if any
+      obj     = h[:obj]         || ((defined? o.obj)       ? o.obj         : nil)   #String, text content
+      idx     = h[:idx]         || ((defined? o.idx)       ? o.idx         : nil)   #String, book index provided?
+      ocn     = h[:ocn]         || ((defined? o.ocn)       ? o.ocn         : nil)   #Integer, sequential on substantive-content objects
+      odv     = h[:odv]         || ((defined? o.odv)       ? o.odv         : nil)
+      osp     = h[:osp]         || ((defined? o.osp)       ? o.osp         : nil)
+      node    = h[:node]        || ((defined? o.node)      ? o.node        : nil)   #[Node relationship doc structure info]
+      parent  = h[:parent]      || ((defined? o.parent)    ? o.parent      : nil)   #[Node parent]
+      lv      = h[:lv]          || ((defined? o.lv)        ? o.lv          : nil)   #Alpha-numeric, document structure as used in markup, A-D then 1-6
+      ln      = h[:ln]          || ((defined? o.ln)        ? o.ln          : nil)   #Integer, document structure level, for convenience in processing 1-9
+      lc      = h[:lc]          || ((defined? o.lc)        ? o.lc          : nil)   #Integer, document structure collapsed level, convenience (collapse sisu's dual level document structure for markup with simple linear structure)
+      use_    = if lv \
+        and lv == '1'
+          h[:use_]              || ((defined? o.use_)      ? o.use_        : :ok)
+        elsif not lv.empty? \
+        and lv =~ /[A-D2-3]/
+          :ok
+        else
+           h[:use_]             || ((defined? o.use_)      ? o.use_        : :ok)
+        end
+      ocn_    = if h[:ocn_].nil?
+                                   ((defined? o.ocn_)      ? o.ocn_        : true)  #Bool? no ocn, non-substantive content, do not include in toc #consider
+        else                       h[:ocn_]
+        end
+      autonum_ = if h[:autonum_].nil?
+                                   ((defined? o.autonum_)  ? o.autonum_    : true)  #Bool? auto-numbering if requested default on, false suppresses
+        else                       h[:autonum_]
+        end
+      note_   = h[:note_]       || ((defined? o.note_)     ? o.note_       : false) #Bool, endnotes/footnotes? (processing optimization)
+      digest  = h[:digest]      || ((defined? o.digest)    ? o.digest      : nil)   #hash digests, sha512, sha256 or md5
+      tmp     = h[:tmp]         || ((defined? o.tmp)       ? o.tmp         : nil)   #available for processing, empty after use
+      @of,@is,@lv,@ln,@lc,@name,@tags,@obj,@idx,@ocn,@odv,@osp,@node,@parent,@use_,@ocn_,@note_,@autonum_,@digest,@tmp=
+      of, is, lv, ln, lc, name, tags, obj, idx, ocn, odv, osp, node, parent, use_, ocn_, note_, autonum_, digest, tmp
       self
     end
     def heading_insert(h,o=nil)
       heading(h,o=nil)
-      @is=     :heading_insert                                                 #String, classification - specific type
+      @is     = :heading_insert                                                     #String, classification - specific type
       self
     end
   end
@@ -191,52 +194,56 @@ module SiSU_AO_DocumentStructure
       @tags=[]
     end
     def paragraph(h,o=nil)
-      of=    @of                                                               #Symbol, classification - group
-      is=    :para                                                             #Symbol, classification - specific type
-      name=   h[:name]    || ((defined? o.name)      ? o.name    : nil)        #String, named object?
-      tags=   h[:tags]    || ((defined? o.tags)      ? o.tags    : [])         #Array, associated object tags, names if any
-      obj=    h[:obj]     || ((defined? o.obj)       ? o.obj     : nil)        #String, text content
-      idx=    h[:idx]     || ((defined? o.idx)       ? o.idx     : nil)        #String, book index provided?
-      ocn=    h[:ocn]     || ((defined? o.ocn)       ? o.ocn     : nil)        #Integer, sequential on substantive-content objects
-      odv=    h[:odv]     || ((defined? o.odv)       ? o.odv     : nil)
-      osp=    h[:osp]     || ((defined? o.osp)       ? o.osp     : nil)
-      parent= h[:parent]  || ((defined? o.parent)    ? o.parent  : nil)        #[Node parent]
-      indent= h[:indent].to_s || ((defined? o.indent) ? o.indent.to_s : nil)   #Integer, indent level
-      hang=   h[:hang].to_s || ((defined? o.hang)    ? o.hang.to_s : nil)      #Integer, hanging indent level
-      bullet_=h[:bullet_] || ((defined? o.bullet_)   ? o.bullet_ : false)      #Bool, bulleted?
-      quote_= h[:quote_]  || ((defined? o.quote_)    ? o.quote_  : false)      #Bool, quote (blockquote)?
-      note_=  h[:note_]   || ((defined? o.note_)     ? o.note_   : false)      #Bool, endnotes/footnotes? (processing optimization)
-      image_= h[:image_]  || ((defined? o.image_)    ? o.image_  : false)      #Bool, images? (processing optimization)
-      ocn_=if h[:ocn_].nil? then ((defined? o.ocn_)  ? o.ocn_    : true)       #Bool? no ocn, non-substantive content, do not include in toc #consider
-      else  h[:ocn_]
+      of      = @of                                                                 #Symbol, classification - group
+      is      = :para                                                               #Symbol, classification - specific type
+      name    = h[:name]        || ((defined? o.name)      ? o.name        : nil)   #String, named object?
+      tags    = h[:tags]        || ((defined? o.tags)      ? o.tags        : [])    #Array, associated object tags, names if any
+      obj     = h[:obj]         || ((defined? o.obj)       ? o.obj         : nil)   #String, text content
+      idx     = h[:idx]         || ((defined? o.idx)       ? o.idx         : nil)   #String, book index provided?
+      ocn     = h[:ocn]         || ((defined? o.ocn)       ? o.ocn         : nil)   #Integer, sequential on substantive-content objects
+      odv     = h[:odv]         || ((defined? o.odv)       ? o.odv         : nil)
+      osp     = h[:osp]         || ((defined? o.osp)       ? o.osp         : nil)
+      parent  = h[:parent]      || ((defined? o.parent)    ? o.parent      : nil)   #[Node parent]
+      indent  = h[:indent].to_s || ((defined? o.indent)    ? o.indent.to_s : nil)   #Integer, indent level
+      hang    = h[:hang].to_s   || ((defined? o.hang)      ? o.hang.to_s   : nil)   #Integer, hanging indent level
+      bullet_ = h[:bullet_]     || ((defined? o.bullet_)   ? o.bullet_     : false) #Bool, bulleted?
+      quote_  = h[:quote_]      || ((defined? o.quote_)    ? o.quote_      : false) #Bool, quote (blockquote)?
+      note_   = h[:note_]       || ((defined? o.note_)     ? o.note_       : false) #Bool, endnotes/footnotes? (processing optimization)
+      image_  = h[:image_]      || ((defined? o.image_)    ? o.image_      : false) #Bool, images? (processing optimization)
+      ocn_    = if h[:ocn_].nil?
+                                   ((defined? o.ocn_)      ? o.ocn_        : true)  #Bool? no ocn, non-substantive content, do not include in toc #consider
+      else         h[:ocn_]
       end
-      digest= h[:digest]  || ((defined? o.digest)    ? o.digest  : nil)        #hash digests, sha512, sha256 or md5
-      tmp=    h[:tmp]     || ((defined? o.tmp)       ? o.tmp     : nil)        #available for processing, empty after use
-      @of,@is,@name,@tags,@obj,@indent,@hang,@bullet_,@quote_,@idx,@ocn,@odv,@osp,@parent,@image_,@note_,@ocn_,@digest,@tmp=of,is,name,tags,obj,indent,hang,bullet_,quote_,idx,ocn,odv,osp,parent,image_,note_,ocn_,digest,tmp
+      digest  = h[:digest]      || ((defined? o.digest)    ? o.digest      : nil)   #hash digests, sha512, sha256 or md5
+      tmp     = h[:tmp]         || ((defined? o.tmp)       ? o.tmp         : nil)   #available for processing, empty after use
+      @of,@is,@name,@tags,@obj,@indent,@hang,@bullet_,@quote_,@idx,@ocn,@odv,@osp,@parent,@image_,@note_,@ocn_,@digest,@tmp=
+      of, is, name, tags, obj, indent, hang, bullet_, quote_, idx, ocn, odv, osp, parent, image_, note_, ocn_, digest, tmp
       self
     end
     def docinfo(h,o=nil)
-      of=    @of                                                               #String, classification - group
-      is=    :docinfo                                                          #String, classification - specific type
-      name=   h[:name]    || ((defined? o.name)      ? o.name    : nil)        #String, named object?
-      tags=   h[:tags]    || ((defined? o.tags)      ? o.tags    : nil)        #Array, associated object tags, names if any
-      obj=    h[:obj]     || ((defined? o.obj)       ? o.obj     : nil)        #String, text content
-      idx=    nil                                                              #String, book index provided?
-      ocn=    nil                                                              #Integer, sequential on substantive-content objects
-      odv=    h[:odv]     || ((defined? o.odv)       ? o.odv     : nil)
-      osp=    h[:osp]     || ((defined? o.osp)       ? o.osp     : nil)
-      parent= h[:parent]  || ((defined? o.parent)    ? o.parent  : nil)        #[Node parent]
-      indent= nil                                                              #Integer, indent level
-      hang= nil                                                                #Integer, indent level
-      bullet_=false                                                            #Bool, bulleted?
-      note_=  false                                                            #Bool, endnotes/footnotes? (processing optimization)
-      image_= h[:image_]  || ((defined? o.image_)    ? o.image_  : false)      #Bool, images? (processing optimization)
-      ocn_=if h[:ocn_].nil? then ((defined? o.ocn_)  ? o.ocn_    : true)       #Bool? no ocn, non-substantive content, do not include in toc #consider
-      else  h[:ocn_]
+      of      = @of                                                                 #String, classification - group
+      is      = :docinfo                                                            #String, classification - specific type
+      name    = h[:name]        || ((defined? o.name)      ? o.name        : nil)   #String, named object?
+      tags    = h[:tags]        || ((defined? o.tags)      ? o.tags        : nil)   #Array, associated object tags, names if any
+      obj     = h[:obj]         || ((defined? o.obj)       ? o.obj         : nil)   #String, text content
+      idx     = nil                                                                 #String, book index provided?
+      ocn     = nil                                                                 #Integer, sequential on substantive-content objects
+      odv     = h[:odv]         || ((defined? o.odv)       ? o.odv         : nil)
+      osp     = h[:osp]         || ((defined? o.osp)       ? o.osp         : nil)
+      parent  = h[:parent]      || ((defined? o.parent)    ? o.parent      : nil)   #[Node parent]
+      indent  = nil                                                                 #Integer, indent level
+      hang    = nil                                                                 #Integer, indent level
+      bullet_ = false                                                               #Bool, bulleted?
+      note_   = false                                                               #Bool, endnotes/footnotes? (processing optimization)
+      image_  = h[:image_]      || ((defined? o.image_)    ? o.image_      : false) #Bool, images? (processing optimization)
+      ocn_    = if h[:ocn_].nil?
+                                   ((defined? o.ocn_)      ? o.ocn_        : true)  #Bool? no ocn, non-substantive content, do not include in toc #consider
+      else                         h[:ocn_]
       end
-      digest= h[:digest]  || ((defined? o.digest)    ? o.digest  : nil)        #hash digests, sha512, sha256 or md5
-      tmp=    h[:tmp]     || ((defined? o.tmp)       ? o.tmp     : nil)        #available for processing, empty after use
-      @of,@is,@name,@tags,@obj,@indent,@hang,@bullet_,@idx,@ocn,@odv,@osp,@parent,@image_,@note_,@ocn_,@digest,@tmp=of,is,name,tags,obj,indent,hang,bullet_,idx,ocn,odv,osp,parent,image_,note_,ocn_,digest,tmp
+      digest  = h[:digest]      || ((defined? o.digest)    ? o.digest      : nil)   #hash digests, sha512, sha256 or md5
+      tmp     = h[:tmp]         || ((defined? o.tmp)       ? o.tmp         : nil)   #available for processing, empty after use
+      @of,@is,@name,@tags,@obj,@indent,@hang,@bullet_,@idx,@ocn,@odv,@osp,@parent,@image_,@note_,@ocn_,@digest,@tmp=
+      of, is, name, tags, obj, indent, hang, bullet_, idx, ocn, odv, osp, parent, image_, note_, ocn_, digest, tmp
       self
     end
   end
@@ -248,124 +255,136 @@ module SiSU_AO_DocumentStructure
       @tags=[]
     end
     def code(h,o=nil)
-      of=      @of                                                             #Symbol, classification - group #alt 'code'
-      is=      :code                                                           #Symbol, classification - specific type
-      tags=    h[:tags]    || ((defined? o.tags)     ? o.tags    : [])         #Array, associated object tags, names if any
-      obj=     h[:obj]     || ((defined? o.obj)      ? o.obj     : nil)        #String, text content
-      lngsyn=  h[:lngsyn]  || ((defined? o.lngsyn)   ? o.lngsyn  : :txt)       #symbol, code lngsyn
-      idx=     h[:idx]     || ((defined? o.idx)      ? o.idx     : nil)        #String, book index provided?
-      ocn=     h[:ocn]     || ((defined? o.ocn)      ? o.ocn     : nil)        #Integer, sequential on substantive-content objects
-      odv=     h[:odv]     || ((defined? o.odv)      ? o.odv     : nil)
-      osp=     h[:osp]     || ((defined? o.osp)      ? o.osp     : nil)
-      parent=  h[:parent]  || ((defined? o.parent)   ? o.parent  : nil)        #[Node parent]
-      number_= h[:number_] || ((defined? o.number_)  ? o.number_ : false)      #Bool, numbered or not?
-      note_=   h[:note_]   || ((defined? o.note_)    ? o.note_   : false)      #Bool, endnotes/footnotes? (processing optimization)
-      ocn_= if h[:ocn_].nil? then ((defined? o.ocn_) ? o.ocn_    : true)       #Bool? no ocn, non-substantive content, do not include in toc #consider
-      else     h[:ocn_]
+      of       = @of                                                                #Symbol, classification - group #alt 'code'
+      is       = :code                                                              #Symbol, classification - specific type
+      tags     = h[:tags]       || ((defined? o.tags)      ? o.tags        : [])    #Array, associated object tags, names if any
+      obj      = h[:obj]        || ((defined? o.obj)       ? o.obj         : nil)   #String, text content
+      lngsyn   = h[:lngsyn]     || ((defined? o.lngsyn)    ? o.lngsyn      : :txt)  #symbol, code lngsyn
+      idx      = h[:idx]        || ((defined? o.idx)       ? o.idx         : nil)   #String, book index provided?
+      ocn      = h[:ocn]        || ((defined? o.ocn)       ? o.ocn         : nil)   #Integer, sequential on substantive-content objects
+      odv      = h[:odv]        || ((defined? o.odv)       ? o.odv         : nil)
+      osp      = h[:osp]        || ((defined? o.osp)       ? o.osp         : nil)
+      parent   = h[:parent]     || ((defined? o.parent)    ? o.parent      : nil)   #[Node parent]
+      number_  = h[:number_]    || ((defined? o.number_)   ? o.number_     : false) #Bool, numbered or not?
+      note_    = h[:note_]      || ((defined? o.note_)     ? o.note_       : false) #Bool, endnotes/footnotes? (processing optimization)
+      ocn_     = if h[:ocn_].nil?
+                                   ((defined? o.ocn_)      ? o.ocn_        : true)  #Bool? no ocn, non-substantive content, do not include in toc #consider
+      else                         h[:ocn_]
       end
-      num=     h[:num]     || ((defined? o.num)      ? o.num     : nil)
-      digest=  h[:digest]  || ((defined? o.digest)   ? o.digest  : nil)        #hash digests, sha512, sha256 or md5
-      tmp=     h[:tmp]     || ((defined? o.tmp)      ? o.tmp     : nil)        #available for processing, empty after use
-      @of,@is,@tags,@obj,@lngsyn,@idx,@ocn,@odv,@osp,@parent,@number_,@note_,@ocn_,@num,@digest,@tmp=of,is,tags,obj,lngsyn,idx,ocn,odv,osp,parent,number_,note_,ocn_,num,digest,tmp
+      num      = h[:num]        || ((defined? o.num)       ? o.num         : nil)
+      digest   = h[:digest]     || ((defined? o.digest)    ? o.digest      : nil)   #hash digests, sha512, sha256 or md5
+      tmp      = h[:tmp]        || ((defined? o.tmp)       ? o.tmp         : nil)   #available for processing, empty after use
+      @of,@is,@tags,@obj,@lngsyn,@idx,@ocn,@odv,@osp,@parent,@number_,@note_,@ocn_,@num,@digest,@tmp=
+      of, is, tags, obj, lngsyn, idx, ocn, odv, osp, parent, number_, note_, ocn_, num, digest, tmp
       self
     end
     def box(h,o=nil)
-      of=      @of                                                             #Symbol, classification - group
-      is=      :box                                                            #Symbol, classification - specific type
-      tags=    h[:tags]    || ((defined? o.tags)     ? o.tags    : [])         #Array, associated object tags, names if any
-      obj=     h[:obj]     || ((defined? o.obj)      ? o.obj     : nil)        #String, text content
-      idx=     h[:idx]     || ((defined? o.idx)      ? o.idx     : nil)        #String, book index provided?
-      ocn=     h[:ocn]     || ((defined? o.ocn)      ? o.ocn     : nil)        #Integer, sequential on substantive-content objects
-      odv=     h[:odv]     || ((defined? o.odv)      ? o.odv     : nil)
-      osp=     h[:osp]     || ((defined? o.osp)      ? o.osp     : nil)
-      parent=  h[:parent]  || ((defined? o.parent)   ? o.parent  : nil)        #[Node parent]
-      note_=   h[:note_]   || ((defined? o.note_)    ? o.note_   : false)      #Bool, endnotes/footnotes? (processing optimization)
-      ocn_= if h[:ocn_].nil? then ((defined? o.ocn_) ? o.ocn_    : true)       #Bool? no ocn, non-substantive content, do not include in toc #consider
-      else     h[:ocn_]
+      of       = @of                                                                #Symbol, classification - group
+      is       = :box                                                               #Symbol, classification - specific type
+      tags     = h[:tags]       || ((defined? o.tags)      ? o.tags        : [])    #Array, associated object tags, names if any
+      obj      = h[:obj]        || ((defined? o.obj)       ? o.obj         : nil)   #String, text content
+      idx      = h[:idx]        || ((defined? o.idx)       ? o.idx         : nil)   #String, book index provided?
+      ocn      = h[:ocn]        || ((defined? o.ocn)       ? o.ocn         : nil)   #Integer, sequential on substantive-content objects
+      odv      = h[:odv]        || ((defined? o.odv)       ? o.odv         : nil)
+      osp      = h[:osp]        || ((defined? o.osp)       ? o.osp         : nil)
+      parent   = h[:parent]     || ((defined? o.parent)    ? o.parent      : nil)   #[Node parent]
+      note_    = h[:note_]      || ((defined? o.note_)     ? o.note_       : false) #Bool, endnotes/footnotes? (processing optimization)
+      ocn_     = if h[:ocn_].nil?
+                                   ((defined? o.ocn_)      ? o.ocn_        : true)  #Bool? no ocn, non-substantive content, do not include in toc #consider
+      else                         h[:ocn_]
       end
-      num=     h[:num]     || ((defined? o.num)      ? o.num     : nil)
-      digest=  h[:digest]  || ((defined? o.digest)   ? o.digest  : nil)        #hash digests, sha512, sha256 or md5
-      tmp=     h[:tmp]     || ((defined? o.tmp)      ? o.tmp     : nil)        #available for processing, empty after use
-      @of,@is,@tags,@obj,@idx,@ocn,@odv,@osp,@parent,@note_,@ocn_,@num,@digest,@tmp=of,is,tags,obj,idx,ocn,odv,osp,parent,note_,ocn_,num,digest,tmp
+      num      = h[:num]        || ((defined? o.num)       ? o.num         : nil)
+      digest   = h[:digest]     || ((defined? o.digest)    ? o.digest      : nil)   #hash digests, sha512, sha256 or md5
+      tmp      = h[:tmp]        || ((defined? o.tmp)       ? o.tmp         : nil)   #available for processing, empty after use
+      @of,@is,@tags,@obj,@idx,@ocn,@odv,@osp,@parent,@note_,@ocn_,@num,@digest,@tmp=
+      of, is, tags, obj, idx, ocn, odv, osp, parent, note_, ocn_, num, digest, tmp
       self
     end
     def block(h,o=nil)
-      of=      @of                                                             #Symbol, classification - group
-      is=      :block                                                          #Symbol, classification - specific type
-      tags=    h[:tags]    || ((defined? o.tags)     ? o.tags    : [])         #Array, associated object tags, names if any
-      obj=     h[:obj]     || ((defined? o.obj)      ? o.obj     : nil)        #String, text content
-      idx=     h[:idx]     || ((defined? o.idx)      ? o.idx     : nil)        #String, book index provided?
-      ocn=     h[:ocn]     || ((defined? o.ocn)      ? o.ocn     : nil)        #Integer, sequential on substantive-content objects
-      odv=     h[:odv]     || ((defined? o.odv)      ? o.odv     : nil)
-      osp=     h[:osp]     || ((defined? o.osp)      ? o.osp     : nil)
-      parent=  h[:parent]  || ((defined? o.parent)   ? o.parent  : nil)        #[Node parent]
-      note_=   h[:note_]   || ((defined? o.note_)    ? o.note_   : false)      #Bool, endnotes/footnotes? (processing optimization)
-      ocn_= if h[:ocn_].nil? then ((defined? o.ocn_) ? o.ocn_    : true)       #Bool? no ocn, non-substantive content, do not include in toc #consider
-      else     h[:ocn_]
+      of       = @of                                                                #Symbol, classification - group
+      is       = :block                                                             #Symbol, classification - specific type
+      tags     = h[:tags]       || ((defined? o.tags)      ? o.tags        : [])    #Array, associated object tags, names if any
+      obj      = h[:obj]        || ((defined? o.obj)       ? o.obj         : nil)   #String, text content
+      idx      = h[:idx]        || ((defined? o.idx)       ? o.idx         : nil)   #String, book index provided?
+      ocn      = h[:ocn]        || ((defined? o.ocn)       ? o.ocn         : nil)   #Integer, sequential on substantive-content objects
+      odv      = h[:odv]        || ((defined? o.odv)       ? o.odv         : nil)
+      osp      = h[:osp]        || ((defined? o.osp)       ? o.osp         : nil)
+      parent   = h[:parent]     || ((defined? o.parent)    ? o.parent      : nil)   #[Node parent]
+      note_    = h[:note_]      || ((defined? o.note_)     ? o.note_       : false) #Bool, endnotes/footnotes? (processing optimization)
+      ocn_     = if h[:ocn_].nil?
+                                   ((defined? o.ocn_)      ? o.ocn_        : true)  #Bool? no ocn, non-substantive content, do not include in toc #consider
+      else                         h[:ocn_]
       end
-      num=     h[:num]     || ((defined? o.num)      ? o.num     : nil)
-      digest=  h[:digest]  || ((defined? o.digest)   ? o.digest  : nil)        #hash digests, sha512, sha256 or md5
-      tmp=     h[:tmp]     || ((defined? o.tmp)      ? o.tmp     : nil)        #available for processing, empty after use
-      @of,@is,@tags,@obj,@idx,@ocn,@odv,@osp,@parent,@note_,@ocn_,@num,@digest,@tmp=of,is,tags,obj,idx,ocn,odv,osp,parent,note_,ocn_,num,digest,tmp
+      num      = h[:num]        || ((defined? o.num)       ? o.num         : nil)
+      digest   = h[:digest]     || ((defined? o.digest)    ? o.digest      : nil)   #hash digests, sha512, sha256 or md5
+      tmp      = h[:tmp]        || ((defined? o.tmp)       ? o.tmp         : nil)   #available for processing, empty after use
+      @of,@is,@tags,@obj,@idx,@ocn,@odv,@osp,@parent,@note_,@ocn_,@num,@digest,@tmp=
+      of, is, tags, obj, idx, ocn, odv, osp, parent, note_, ocn_, num, digest, tmp
       self
     end
     def group(h,o=nil)
-      of=      @of                                                             #Symbol, classification - group
-      is=      :group                                                          #Symbol, classification - specific type
-      tags=    h[:tags]    || ((defined? o.tags)     ? o.tags    : [])         #Array, associated object tags, names if any
-      obj=     h[:obj]     || ((defined? o.obj)      ? o.obj     : nil)        #String, text content
-      idx=     h[:idx]     || ((defined? o.idx)      ? o.idx     : nil)        #String, book index provided?
-      ocn=     h[:ocn]     || ((defined? o.ocn)      ? o.ocn     : nil)        #Integer, sequential on substantive-content objects
-      odv=     h[:odv]     || ((defined? o.odv)      ? o.odv     : nil)
-      osp=     h[:osp]     || ((defined? o.osp)      ? o.osp     : nil)
-      parent=  h[:parent]  || ((defined? o.parent)   ? o.parent  : nil)        #[Node parent]
-      note_=   h[:note_]   || ((defined? o.note_)    ? o.note_   : false)      #Bool, endnotes/footnotes? (processing optimization)
-      ocn_= if h[:ocn_].nil? then ((defined? o.ocn_) ? o.ocn_    : true)       #Bool? no ocn, non-substantive content, do not include in toc #consider
-      else     h[:ocn_]
+      of       = @of                                                                #Symbol, classification - group
+      is       = :group                                                             #Symbol, classification - specific type
+      tags     = h[:tags]       || ((defined? o.tags)      ? o.tags        : [])    #Array, associated object tags, names if any
+      obj      = h[:obj]        || ((defined? o.obj)       ? o.obj         : nil)   #String, text content
+      idx      = h[:idx]        || ((defined? o.idx)       ? o.idx         : nil)   #String, book index provided?
+      ocn      = h[:ocn]        || ((defined? o.ocn)       ? o.ocn         : nil)   #Integer, sequential on substantive-content objects
+      odv      = h[:odv]        || ((defined? o.odv)       ? o.odv         : nil)
+      osp      = h[:osp]        || ((defined? o.osp)       ? o.osp         : nil)
+      parent   = h[:parent]     || ((defined? o.parent)    ? o.parent      : nil)   #[Node parent]
+      note_    = h[:note_]      || ((defined? o.note_)     ? o.note_       : false) #Bool, endnotes/footnotes? (processing optimization)
+      ocn_     = if h[:ocn_].nil?
+                                   ((defined? o.ocn_)      ? o.ocn_        : true)  #Bool? no ocn, non-substantive content, do not include in toc #consider
+      else          h[:ocn_]
       end
-      num=     h[:num]     || ((defined? o.num)      ? o.num     : nil)
-      digest=  h[:digest]  || ((defined? o.digest)   ? o.digest  : nil)        #hash digests, sha512, sha256 or md5
-      tmp=     h[:tmp]     || ((defined? o.tmp)      ? o.tmp     : nil)        #available for processing, empty after use
-      @of,@is,@tags,@obj,@idx,@ocn,@odv,@osp,@parent,@note_,@ocn_,@num,@digest,@tmp=of,is,tags,obj,idx,ocn,odv,osp,parent,note_,ocn_,num,digest,tmp
+      num      = h[:num]        || ((defined? o.num)       ? o.num         : nil)
+      digest   = h[:digest]     || ((defined? o.digest)    ? o.digest      : nil)   #hash digests, sha512, sha256 or md5
+      tmp      = h[:tmp]        || ((defined? o.tmp)       ? o.tmp         : nil)   #available for processing, empty after use
+      @of,@is,@tags,@obj,@idx,@ocn,@odv,@osp,@parent,@note_,@ocn_,@num,@digest,@tmp=
+      of, is, tags, obj, idx, ocn, odv, osp, parent, note_, ocn_, num, digest, tmp
       self
     end
-    def alt(h,o=nil)                                                           #see block
-      of=      @of                                                             #Symbol, classification - group
-      is=      :alt                                                            #Symbol, classification - specific type
-      tags=    h[:tags]    || ((defined? o.tags)     ? o.tags    : [])         #Array, associated object tags, names if any
-      obj=     h[:obj]     || ((defined? o.obj)      ? o.obj     : nil)        #String, text content
-      idx=     h[:idx]     || ((defined? o.idx)      ? o.idx     : nil)        #String, book index provided?
-      ocn=     h[:ocn]     || ((defined? o.ocn)      ? o.ocn     : nil)        #Integer, sequential on substantive-content objects
-      odv=     h[:odv]     || ((defined? o.odv)      ? o.odv     : nil)
-      osp=     h[:osp]     || ((defined? o.osp)      ? o.osp     : nil)
-      parent=  h[:parent]  || ((defined? o.parent)   ? o.parent  : nil)        #[Node parent]
-      note_=   h[:note_]   || ((defined? o.note_)    ? o.note_   : false)      #Bool, endnotes/footnotes? (processing optimization)
-      ocn_= if h[:ocn_].nil? then ((defined? o.ocn_) ? o.ocn_    : true)       #Bool? no ocn, non-substantive content, do not include in toc #consider
-      else     h[:ocn_]
+    def alt(h,o=nil)                                                                #see block
+      of       = @of                                                                #Symbol, classification - group
+      is       = :alt                                                               #Symbol, classification - specific type
+      tags     = h[:tags]       || ((defined? o.tags)      ? o.tags        : [])    #Array, associated object tags, names if any
+      obj      = h[:obj]        || ((defined? o.obj)       ? o.obj         : nil)   #String, text content
+      idx      = h[:idx]        || ((defined? o.idx)       ? o.idx         : nil)   #String, book index provided?
+      ocn      = h[:ocn]        || ((defined? o.ocn)       ? o.ocn         : nil)   #Integer, sequential on substantive-content objects
+      odv      = h[:odv]        || ((defined? o.odv)       ? o.odv         : nil)
+      osp      = h[:osp]        || ((defined? o.osp)       ? o.osp         : nil)
+      parent   = h[:parent]     || ((defined? o.parent)    ? o.parent      : nil)   #[Node parent]
+      note_    = h[:note_]      || ((defined? o.note_)     ? o.note_       : false) #Bool, endnotes/footnotes? (processing optimization)
+      ocn_     = if h[:ocn_].nil?
+                                   ((defined? o.ocn_)      ? o.ocn_        : true)  #Bool? no ocn, non-substantive content, do not include in toc #consider
+      else                         h[:ocn_]
       end
-      num=     h[:num]     || ((defined? o.num)      ? o.num     : nil)
-      digest=  h[:digest]  || ((defined? o.digest)   ? o.digest  : nil)        #hash digests, sha512, sha256 or md5
-      tmp=     h[:tmp]     || ((defined? o.tmp)      ? o.tmp     : nil)        #available for processing, empty after use
-      @of,@is,@tags,@obj,@idx,@ocn,@odv,@osp,@parent,@note_,@ocn_,@num,@digest,@tmp=of,is,tags,obj,idx,ocn,odv,osp,parent,note_,ocn_,num,digest,tmp
+      num      = h[:num]        || ((defined? o.num)       ? o.num         : nil)
+      digest   = h[:digest]     || ((defined? o.digest)    ? o.digest      : nil)   #hash digests, sha512, sha256 or md5
+      tmp      = h[:tmp]        || ((defined? o.tmp)       ? o.tmp         : nil)   #available for processing, empty after use
+      @of,@is,@tags,@obj,@idx,@ocn,@odv,@osp,@parent,@note_,@ocn_,@num,@digest,@tmp=
+      of, is, tags, obj, idx, ocn, odv, osp, parent, note_, ocn_, num, digest, tmp
       self
     end
-    def verse(h,o=nil)                                                         #part of poem decide how you deal with this
-      of=      @of                                                             #Symbol, classification - group
-      is=      :verse                                                          #Symbol, classification - specific type
-      tags=    h[:tags]    || ((defined? o.tags)     ? o.tags    : [])         #Array, associated object tags, names if any
-      obj=     h[:obj]     || ((defined? o.obj)      ? o.obj     : nil)        #String, text content
-      idx=     h[:idx]     || ((defined? o.idx)      ? o.idx     : nil)        #String, book index provided?
-      ocn=     h[:ocn]     || ((defined? o.ocn)      ? o.ocn     : nil)        #Integer, sequential on substantive-content objects
-      odv=     h[:odv]     || ((defined? o.odv)      ? o.odv     : nil)
-      osp=     h[:osp]     || ((defined? o.osp)      ? o.osp     : nil)
-      parent=  h[:parent]  || ((defined? o.parent)   ? o.parent  : nil)        #[Node parent]
-      ocn_= if h[:ocn_].nil? then ((defined? o.ocn_) ? o.ocn_    : true)       #Bool? no ocn, non-substantive content, do not include in toc #consider
-      else     h[:ocn_]
+    def verse(h,o=nil)                                                              #part of poem decide how you deal with this
+      of       = @of                                                                #Symbol, classification - group
+      is       = :verse                                                             #Symbol, classification - specific type
+      tags     = h[:tags]       || ((defined? o.tags)      ? o.tags        : [])    #Array, associated object tags, names if any
+      obj      = h[:obj]        || ((defined? o.obj)       ? o.obj         : nil)   #String, text content
+      idx      = h[:idx]        || ((defined? o.idx)       ? o.idx         : nil)   #String, book index provided?
+      ocn      = h[:ocn]        || ((defined? o.ocn)       ? o.ocn         : nil)   #Integer, sequential on substantive-content objects
+      odv      = h[:odv]        || ((defined? o.odv)       ? o.odv         : nil)
+      osp      = h[:osp]        || ((defined? o.osp)       ? o.osp         : nil)
+      parent   = h[:parent]     || ((defined? o.parent)    ? o.parent      : nil)   #[Node parent]
+      ocn_     = if h[:ocn_].nil?
+                                   ((defined? o.ocn_)      ? o.ocn_        : true)  #Bool? no ocn, non-substantive content, do not include in toc #consider
+      else                         h[:ocn_]
       end
-      num=     h[:num]     || ((defined? o.num)      ? o.num     : nil)
-      digest=  h[:digest]  || ((defined? o.digest)   ? o.digest  : nil)        #hash digests, sha512, sha256 or md5
-      tmp=     h[:tmp]     || ((defined? o.tmp)      ? o.tmp     : nil)        #available for processing, empty after use
-      @of,@is,@tags,@obj,@idx,@ocn,@odv,@osp,@parent,@note_,@ocn_,@num,@digest,@tmp=of,is,tags,obj,idx,ocn,odv,osp,parent,note_,ocn_,num,digest,tmp
+      num      = h[:num]        || ((defined? o.num)       ? o.num         : nil)
+      digest   = h[:digest]     || ((defined? o.digest)    ? o.digest      : nil)   #hash digests, sha512, sha256 or md5
+      tmp      = h[:tmp]        || ((defined? o.tmp)       ? o.tmp         : nil)   #available for processing, empty after use
+      @of,@is,@tags,@obj,@idx,@ocn,@odv,@osp,@parent,@note_,@ocn_,@num,@digest,@tmp=
+      of, is, tags, obj, idx, ocn, odv, osp, parent, note_, ocn_, num, digest, tmp
       @h=nil
       self
     end
@@ -378,26 +397,28 @@ module SiSU_AO_DocumentStructure
       @tags=[]
     end
     def table(h,o=nil)
-      of=     @of                                                              #Symbol, classification - group
-      is=     :table                                                           #Symbol, classification - specific type
-      tags=   h[:tags]    || ((defined? o.tags)      ? o.tags    : [])         #Array, associated object tags, names if any
-      cols=   h[:cols]    || ((defined? o.cols)      ? o.cols    : nil)
-      widths= h[:widths]  || ((defined? o.widths)    ? o.widths  : nil)
-      obj=    h[:obj]     || ((defined? o.obj)       ? o.obj     : nil)        #String, text content
-      idx=    h[:idx]     || ((defined? o.idx)       ? o.idx     : nil)        #String, book index provided?
-      ocn=    h[:ocn]     || ((defined? o.ocn)       ? o.ocn     : nil)        #Integer, sequential on substantive-content objects
-      odv=    h[:odv]     || ((defined? o.odv)       ? o.odv     : nil)
-      osp=    h[:osp]     || ((defined? o.osp)       ? o.osp     : nil)
-      parent= h[:parent]  || ((defined? o.parent)    ? o.parent  : nil)        #[Node parent]
-      head_=  h[:head_]   || ((defined? o.head_)     ? o.head_   : false)
-      note_=  h[:note_]   || ((defined? o.note_)     ? o.note_   : false)      #Bool, endnotes/footnotes? (processing optimization)
-      ocn_=if h[:ocn_].nil? then ((defined? o.ocn_)  ? o.ocn_    : true)       #Bool? no ocn, non-substantive content, do not include in toc #consider
-      else    h[:ocn_]
+      of      = @of                                                                 #Symbol, classification - group
+      is      = :table                                                              #Symbol, classification - specific type
+      tags    = h[:tags]        || ((defined? o.tags)      ? o.tags        : [])    #Array, associated object tags, names if any
+      cols    = h[:cols]        || ((defined? o.cols)      ? o.cols        : nil)
+      widths  = h[:widths]      || ((defined? o.widths)    ? o.widths      : nil)
+      obj     = h[:obj]         || ((defined? o.obj)       ? o.obj         : nil)   #String, text content
+      idx     = h[:idx]         || ((defined? o.idx)       ? o.idx         : nil)   #String, book index provided?
+      ocn     = h[:ocn]         || ((defined? o.ocn)       ? o.ocn         : nil)   #Integer, sequential on substantive-content objects
+      odv     = h[:odv]         || ((defined? o.odv)       ? o.odv         : nil)
+      osp     = h[:osp]         || ((defined? o.osp)       ? o.osp         : nil)
+      parent  = h[:parent]      || ((defined? o.parent)    ? o.parent      : nil)   #[Node parent]
+      head_   = h[:head_]       || ((defined? o.head_)     ? o.head_       : false)
+      note_   = h[:note_]       || ((defined? o.note_)     ? o.note_       : false) #Bool, endnotes/footnotes? (processing optimization)
+      ocn_    = if h[:ocn_].nil?
+                                   ((defined? o.ocn_)      ? o.ocn_        : true)  #Bool? no ocn, non-substantive content, do not include in toc #consider
+      else                         h[:ocn_]
       end
-      num=    h[:num]     || ((defined? o.num)       ? o.num     : nil)
-      digest= h[:digest]  || ((defined? o.digest)    ? o.digest  : nil)        #hash digests, sha512, sha256 or md5
-      tmp=    h[:tmp]     || ((defined? o.tmp)       ? o.tmp     : nil)        #available for processing, empty after use
-      @of,@is,@tags,@cols,@widths,@obj,@idx,@ocn,@odv,@osp,@parent,@head_,@note_,@ocn_,@num,@digest,@tmp=of,is,tags,cols,widths,obj,idx,ocn,odv,osp,parent,head_,note_,ocn_,num,digest,tmp
+      num     = h[:num]         || ((defined? o.num)       ? o.num         : nil)
+      digest  = h[:digest]      || ((defined? o.digest)    ? o.digest      : nil)   #hash digests, sha512, sha256 or md5
+      tmp     = h[:tmp]         || ((defined? o.tmp)       ? o.tmp         : nil)   #available for processing, empty after use
+      @of,@is,@tags,@cols,@widths,@obj,@idx,@ocn,@odv,@osp,@parent,@head_,@note_,@ocn_,@num,@digest,@tmp=
+      of, is, tags, cols, widths, obj, idx, ocn, odv, osp, parent, head_, note_, ocn_, num, digest, tmp
       self
     end
   end
@@ -420,8 +441,9 @@ module SiSU_AO_DocumentStructure
       osp=    h[:osp]     || ((defined? o.osp)       ? o.osp     : nil)
       parent= h[:parent]  || ((defined? o.parent)    ? o.parent  : nil)        #[Node parent]
       note_=  h[:note_]   || ((defined? o.note_)     ? o.note_   : false)      #Bool, endnotes/footnotes? (processing optimization)
-      ocn_=if h[:ocn_].nil? then ((defined? o.ocn_)  ? o.ocn_    : true)       #Bool? no ocn, non-substantive content, do not include in toc #consider
-      else  h[:ocn_]
+      ocn_=if h[:ocn_].nil?
+                             ((defined? o.ocn_)  ? o.ocn_    : true)           #Bool? no ocn, non-substantive content, do not include in toc #consider
+      else                   h[:ocn_]
       end
       digest= h[:digest]  || ((defined? o.digest)    ? o.digest  : nil)        #hash digests, sha512, sha256 or md5
       tmp=    h[:tmp]     || ((defined? o.tmp)       ? o.tmp     : nil)        #available for processing, empty after use
@@ -477,10 +499,10 @@ module SiSU_AO_DocumentStructure
     end
   end
   class ObjectLayout
-    attr_accessor :obj,:sym,:attr,:is,:of,:from,:tmp,:num
+    attr_accessor :obj,:sym,:attr,:is,:is_for,:of,:from,:tmp,:num
     def initialize
       @of=:layout
-      @is=@obj=@from=@tmp=@num=nil
+      @is=@is_for=@obj=@from=@tmp=@num=nil
     end
     def break(h,f=nil)                                                         #decide how to deal with
       of=     @of                                                              #Symbol, classification - group
@@ -502,12 +524,14 @@ module SiSU_AO_DocumentStructure
     def open_close(h,o=nil)                                                    #useful for poem & quote
       of=     @of                                                              #Symbol, classification - group
       is=     :open_close_tags                                                 #Symbol, classification - specific type
+      is_for= h[:is_for]  || ((defined? o.is_for)    ? o.is_for  : nil)        #String, text content
       obj=    h[:obj]     || ((defined? o.obj)       ? o.obj     : nil)        #String, text content
       sym=    h[:sym]     || ((defined? o.sym)       ? o.sym     : nil)        #Symbol tag_open, tag_close
       attr=   h[:attr]    || ((defined? o.attr)      ? o.attr    : nil)        #String, text content
       tmp=    h[:tmp]     || ((defined? o.tmp)       ? o.tmp     : nil)        #available for processing, empty after use
       num=    h[:num]     || ((defined? o.num)       ? o.num     : nil)
-      @of,@is,@obj,@sym,@attr,@tmp,@num=of,is,obj,sym,attr,tmp,num
+      @of,@is,@is_for,@obj,@sym,@attr,@tmp,@num=
+      of, is, is_for, obj, sym, attr, tmp, num
       self
     end
   end
diff --git a/lib/sisu/v6/ao_doc_str.rb b/lib/sisu/v6/ao_doc_str.rb
index 7f2815d8..2a96abb7 100644
--- a/lib/sisu/v6/ao_doc_str.rb
+++ b/lib/sisu/v6/ao_doc_str.rb
@@ -154,12 +154,18 @@ module SiSU_AO_DocumentStructureExtract
         [0,0]
       end
       obj=if str2 =~/^(.+?)\s+\\\\(?:\s+|\n)/
-        str2.gsub(/^(.+?)(\s+\\\\(?:\s+|\n))/,"#{Mx[:fa_bold_o]}\\1#{Mx[:fa_bold_c]}\\2")
+        str2.gsub(/^(.+?)(\s+\\\\(?:\s+|\n))/,
+          "#{Mx[:fa_bold_o]}\\1#{Mx[:fa_bold_c]}\\2")
       else
-        str2.gsub(/^(.+?)\n/,"#{Mx[:fa_bold_o]}\\1#{Mx[:fa_bold_c]}\n")
+        str2.gsub(/^(.+?)\n/,
+          "#{Mx[:fa_bold_o]}\\1#{Mx[:fa_bold_c]}\n")
       end
       hang,indent=hang_indent[0],hang_indent[1]
-      [hang,indent,obj]
+      [
+        hang,
+        indent,
+        obj,
+      ]
     end
     def endnote_test?(str)
       (str=~/~\{.+?\}~|~\[.+?\]~/) \
@@ -182,7 +188,10 @@ module SiSU_AO_DocumentStructureExtract
           t.gsub!(/[^a-z0-9._-]/,'')
         end
       end
-      [str,tags]
+      [
+        str,
+        tags,
+      ]
     end
     def rgx_idx_ocn_seg
       @rgx_idx_ocn_seg=/(.+?)\s*[+](\d+)/
@@ -191,14 +200,19 @@ module SiSU_AO_DocumentStructureExtract
       idx_array_raw=idxraw.scan(/[^;]+/)
       idx_hash,idx_array,idx_lst={},[],[]
       idx_array_raw.each do |idx|
+        idx=idx.strip
         idx_lst=case idx
         when /\S+?\s*:/
           idx_couplet_tmp=[]
           idx_couplet=idx.scan(/\s*[^:]+\s*/)
           if idx_couplet[1] =~/[|]/
-            idx_couplet_tmp << idx_couplet[0] << idx_couplet[1].scan(/\s*[^|]+\s*/)
+            idx_couplet_tmp <<
+              idx_couplet[0] <<
+              idx_couplet[1].scan(/\s*[^|]+\s*/)
           else
-            idx_couplet_tmp << idx_couplet[0] << [idx_couplet[1]]
+            idx_couplet_tmp <<
+              idx_couplet[0] <<
+              [idx_couplet[1]]
           end
           idx_couplet=idx_couplet_tmp
         else [idx]
@@ -207,14 +221,17 @@ module SiSU_AO_DocumentStructureExtract
         idx_lst.each do |term_node|
           case term_node
           when String
-            term_node=term_node[0].chr.capitalize + term_node[1,term_node.length]
+            term_node=
+              term_node[0].chr.capitalize +
+              term_node[1,term_node.length]
             term_node=(term_node =~/.+?[+]\d+/) \
             ? term_node
             : (term_node + '+0')
             term_nodes << term_node
             use,plus=rgx_idx_ocn_seg.match(term_node)[1,2]
             @use=use.strip
-            idx_hash[@use]={ sub: [], plus: plus } unless idx_hash[@use] and defined? idx_hash[@use]
+            idx_hash[@use]=
+              { sub: [], plus: plus } unless idx_hash[@use] and defined? idx_hash[@use]
           when Array
             subterm_nodes=[]
             term_node.each do |subterm_node|
@@ -223,15 +240,20 @@ module SiSU_AO_DocumentStructureExtract
               : (subterm_node + '+0')
               subterm_nodes << subterm_node
               sub,sub_plus=rgx_idx_ocn_seg.match(subterm_node)[1,2]
-              idx_hash[@use]={ sub: [], plus: 0 } unless idx_hash[@use] and defined? idx_hash[@use]
-              idx_hash[@use][:sub] << {sub.strip => { plus: sub_plus }}
+              idx_hash[@use]=
+                { sub: [], plus: 0 } unless idx_hash[@use] and defined? idx_hash[@use]
+              idx_hash[@use][:sub] <<
+                { sub.strip => { plus: sub_plus } }
             end
             term_nodes << subterm_nodes
           end
         end
         idx_array << term_nodes
       end
-      { hash: idx_hash, array: idx_array }
+      {
+        hash: idx_hash,
+        array: idx_array,
+      }
     end
     def identify_parts
       tuned_file=[]
@@ -252,16 +274,26 @@ module SiSU_AO_DocumentStructureExtract
           h=case $1
           when /[+]/
             @@flag[:ocn]=:on
-            {flag: :ocn_on}
+            {
+              flag: :ocn_on,
+            }
           when /[~]/
             @@flag[:ocn]=:ocn_off_headings_keep
-            {flag: :ocn_off, mod: :headings_keep}
+            {
+              flag: :ocn_off,
+              mod: :headings_keep,
+            }
           when /[-]/ #of particular relevance with level 1~ which is required to precede substantive text & used e.g. in html segmented text
             @@flag[:ocn]=:ocn_off_headings_dummy_lev1
-            {flag: :ocn_off, mod: :headings_exclude}
+            {
+              flag: :ocn_off,
+              mod: :headings_exclude,
+            }
           else
             @@flag[:ocn]=:on
-            {flag: :ocn_on}
+            {
+              flag: :ocn_on,
+            }
           end
           t_o=SiSU_AO_DocumentStructure::ObjectFlag.new.flag_ocn(h)
           next
@@ -277,11 +309,11 @@ module SiSU_AO_DocumentStructureExtract
         and @@flag[:box]==:off \
         and @@flag[:table]==:off
           unless t_o =~/^(?:@\S+?:|%+)\s/                  # extract book index for paragraph if any
-            idx=if t_o=~/^=\{(.+)\}\s*$\Z/m; m=$1
-              m=m.split(/\n/).join(' ').
+            idx=if t_o=~/^=\{\s*(.+)\s*\}\s*$\Z/m; m=$1
+              m=m.split(/[ ]*\n/).join(' ').
                 gsub(/\s+([|:;])\s+/,'\1').
                 gsub(/\s+([+]\d+)\s+/,'\1')
-              t_o=t_o.gsub(/\n=\{.+\}\s*$\Z/m,'')
+              t_o=t_o.gsub(/\n=\{.+?\}\s*$/m,'')
               idx_array_and_hash=construct_idx_array_and_hash(m)
               idx_array_and_hash[:hash]
             else nil
@@ -296,7 +328,7 @@ module SiSU_AO_DocumentStructureExtract
             t_o=nil
           when /^%+\s/                                     #comment
             t_o=if t_o=~/^%+\s+(.+)/
-              h={obj: $1}
+              h={ obj: $1 }
               SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
             else nil
             end
@@ -319,7 +351,13 @@ module SiSU_AO_DocumentStructureExtract
                   end
                 end
               end
-              h={ lv: lv, ln: ln, obj: obj, idx: idx, tags: tags }
+              h={
+                lv: lv,
+                ln: ln,
+                obj: obj,
+                idx: idx,
+                tags: tags,
+              }
               SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
             elsif t_o=~/^:?[A-D1-6]\~(\S+?)-\s+(.+)/m
               name,obj=$1,$2
@@ -337,7 +375,14 @@ module SiSU_AO_DocumentStructureExtract
                   end
                 end
               end
-              h={ lv: lv, name: name, obj: obj, idx: idx, autonum_: false, tags: tags}
+              h={
+                lv: lv,
+                name: name,
+                obj: obj,
+                idx: idx,
+                autonum_: false,
+                tags: tags,
+              }
               SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
             elsif t_o=~/^:?[A-D1-6]\~(\S+)\s+(.+)/m
               name,obj=$1,$2
@@ -355,7 +400,13 @@ module SiSU_AO_DocumentStructureExtract
                   end
                 end
               end
-              h={ lv: lv, name: name, obj: obj, idx: idx, tags: tags }
+              h={
+                lv: lv,
+                name: name,
+                obj: obj,
+                idx: idx,
+                tags: tags,
+              }
               SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
             else nil
             end
@@ -378,7 +429,17 @@ module SiSU_AO_DocumentStructureExtract
                     obj << ' ~#'
                   end
                 end
-                h={ bullet_: bullet, hang: hang, indent: indent, obj: obj, idx: idx, note_: note, image_: image, tags: tags, quote: quotes? }
+                h={
+                  bullet_: bullet,
+                  hang: hang,
+                  indent: indent,
+                  obj: obj,
+                  idx: idx,
+                  note_: note,
+                  image_: image,
+                  tags: tags,
+                  quote: quotes?,
+                }
                 SiSU_AO_DocumentStructure::ObjectPara.new.paragraph(h)
               end
             else nil
@@ -401,7 +462,16 @@ module SiSU_AO_DocumentStructureExtract
                     obj << ' ~#'
                   end
                 end
-                h={ hang: hang, indent: indent, obj: obj, idx: idx, note_: note, image_: image, tags: tags, quote: quotes? }
+                h={
+                  hang: hang,
+                  indent: indent,
+                  obj: obj,
+                  idx: idx,
+                  note_: note,
+                  image_: image,
+                  tags: tags,
+                  quote: quotes?,
+                }
                 SiSU_AO_DocumentStructure::ObjectPara.new.paragraph(h)
               end
             else nil
@@ -425,9 +495,20 @@ module SiSU_AO_DocumentStructureExtract
               end
             end
             unless obj=~/\A\s*\Z/m
-              h={ bullet_: false, indent: 0, hang: 0, obj: obj, idx: idx, note_: note, image_: image, tags: tags, quote: quotes? }
-              SiSU_AO_DocumentStructure::ObjectPara.new.paragraph(h)
+              h={
+                bullet_: false,
+                indent: 0,
+                hang: 0,
+                obj: obj,
+                idx: idx,
+                note_: note,
+                image_: image,
+                tags: tags,
+                quote: quotes?,
+              }
+              t_o=SiSU_AO_DocumentStructure::ObjectPara.new.paragraph(h)
             end
+            t_o=SiSU_AO_DocumentStructureExtract::Structure.new(@md).structure_markup(t_o) #must happen earlier, node info etc. require
           end
         elsif @@flag[:code]==:off
           if t_o =~/^(?:code(?:\.[a-z][0-9a-z_]+)?\{|```[ ]+code(?:\.[a-z][0-9a-z_]+)?)/
@@ -447,9 +528,18 @@ module SiSU_AO_DocumentStructureExtract
             else :txt
             end
             @@counter=1
-            @codeblock_numbered=(t_o =~/^(?:code(?:\.[a-z][0-9a-z_]+)?\{#|```[ ]+code(?:\.[a-z][0-9a-z_]+)?\s[#])/) ? true : false
+            @codeblock_numbered=
+              (t_o =~/^(?:code(?:\.[a-z][0-9a-z_]+)?\{#|```[ ]+code(?:\.[a-z][0-9a-z_]+)?\s[#])/) \
+              ? true
+              : false
             @num_id[:code_block] +=1
-            h={  obj: '', sym: :code_block_open, num: @num_id[:code_block], syntax: @@flag[:lngsyn] }
+            h={
+              is_for: :code,
+              obj: '',
+              sym: :code_block_open,
+              num: @num_id[:code_block],
+              syntax: @@flag[:lngsyn],
+            }
             t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
           elsif t_o =~/^(?:poem\{|```[ ]+poem)/
             @@flag[:poem]=case t_o
@@ -458,58 +548,93 @@ module SiSU_AO_DocumentStructureExtract
             else                  @@flag[:poem] #error
             end
             @num_id[:poem] +=1
-            h={  obj: '', sym: :poem_open, num: @num_id[:poem] }
+            h={
+              is_for: :poem,
+              obj: '',
+              sym: :poem_open,
+              num: @num_id[:poem],
+            }
             t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
             tuned_file << t_o
           elsif t_o =~/^(?:box(?:\.[a-z_]+)?\{|```[ ]+box(?:\.[a-z_]+)?)/
             @@flag[:box]=case t_o
             when /^box\{/         then :curls
             when /^```[ ]+box/    then :tics
-            else                  @@flag[:box] #error
+            else                       @@flag[:box] #error
             end
             @num_id[:box] +=1
-            h={ obj: '', sym: :box_open, num: @num_id[:box] }
+            h={
+              is_for: :box,
+              obj: '',
+              sym: :box_open,
+              num: @num_id[:box],
+            }
             t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
             tuned_file << t_o
           elsif t_o =~/^(?:group\{|```[ ]+group)/
             @@flag[:group]=case t_o
             when /^group\{/       then :curls
             when /^```[ ]+group/  then :tics
-            else                  @@flag[:group] #error
+            else                       @@flag[:group] #error
             end
             @num_id[:group] +=1
-            h={ obj: '', sym: :group_open, num: @num_id[:group] }
+            h={
+              is_for: :group,
+              obj: '',
+              sym: :group_open,
+              num: @num_id[:group],
+            }
             t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
             tuned_file << t_o
           elsif t_o =~/^(?:block\{|```[ ]+block)/
             @@flag[:block]=case t_o
             when /^block\{/       then :curls
             when /^```[ ]+block/  then :tics
-            else                  @@flag[:block] #error
+            else                       @@flag[:block] #error
             end
             @num_id[:block] +=1
-            h={ obj: '', sym: :block_open, num: @num_id[:block] }
+            h={
+              is_for: :block,
+              obj: '',
+              sym: :block_open,
+              num: @num_id[:block],
+            }
             t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
             tuned_file << t_o
           elsif t_o =~/^(?:alt\{|```[ ]+alt)/
             @@flag[:alt]=case t_o
             when /^alt\{/         then :curls
             when /^```[ ]+alt/    then :tics
-            else                  @@flag[:alt] #error
+            else                       @@flag[:alt] #error
             end
             @num_id[:alt] +=1
-            h={ obj: '', sym: :alt_open, num: @num_id[:alt] }
+            h={
+              is_for: :alt,
+              obj: '',
+              sym: :alt_open,
+              num: @num_id[:alt],
+            }
             t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
             tuned_file << t_o
           elsif t_o =~/^`:quote_open`/
             @@flag[:quote]=:open
             @num_id[:quote] +=1
-            h={ obj: '', sym: :quote_open, num: @num_id[:quote] }
+            h={
+              is_for: :quote,
+              obj: '',
+              sym: :quote_open,
+              num: @num_id[:quote],
+            }
             t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
             #tuned_file << t_o #% find second source, entered twice, should be once so closed off here
           elsif t_o =~/^(?:table\{|```[ ]+table|\{table)[ ~]/
             @num_id[:table] +=1
-            h={ obj: '', sym: :table_open, num: @num_id[:table] }
+            h={
+              is_for: :table,
+              obj: '',
+              sym: :table_open,
+              num: @num_id[:table],
+            }
             ins_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
             tuned_file << ins_o
             if t_o=~/^table\{(?:~h)?\s+/
@@ -525,7 +650,12 @@ module SiSU_AO_DocumentStructureExtract
                 col=$2.scan(/\d+/)
                 heading=false
               end
-              @h={ head_: heading, cols: cols, widths: col, idx: idx }
+              @h={
+                head_: heading,
+                cols: cols,
+                widths: col,
+                idx: idx,
+              }
             elsif t_o=~/^```[ ]+table(?:~h)?\s+c\d+/
               @@flag[:table]=:tics
               @rows=''
@@ -539,7 +669,12 @@ module SiSU_AO_DocumentStructureExtract
                 col=$2.scan(/\d+/)
                 heading=false
               end
-              @h={ head_: heading, cols: cols, widths: col, idx: idx }
+              @h={
+                head_: heading,
+                cols: cols,
+                widths: col,
+                idx: idx,
+              }
             elsif t_o=~/^\{table(?:~h)?(?:\s+\d+;?)?\}\n.+\Z/m
               m1,m2,hd=nil,nil,nil
               tbl=/^\{table(?:~h)?(?:\s+\d+;?)?\}\n(.+)\Z/m.match(t_o)[1]
@@ -550,7 +685,7 @@ module SiSU_AO_DocumentStructureExtract
               cols=nil
               rws.each do |r|
                 cols=(cols ? cols : (r.scan('|').length) +1)
-                r=r.gsub(/\s*\|\s*/m,"#{Mx[:tc_p]}")        #r.gsub!(/\|/m,"#{Mx[:tc_p]}")
+                r=r.gsub(/\s*\|\s*/m,"#{Mx[:tc_p]}")       #r.gsub!(/\|/m,"#{Mx[:tc_p]}")
                 rows += r + Mx[:tc_c]
               end
               col=[]
@@ -563,18 +698,31 @@ module SiSU_AO_DocumentStructureExtract
                 width=100.00/cols
                 cols.times { col << width }
               end
-              h={ head_: hd, cols: cols, widths: col, obj: rows, idx: idx, tags: tags, num: @num_id[:table] }
+              h={
+                head_: hd,
+                cols: cols,
+                widths: col,
+                obj: rows,
+                idx: idx,
+                tags: tags,
+                num: @num_id[:table],
+              }
               t_o=SiSU_AO_DocumentStructure::ObjectTable.new.table(h) unless h.nil?
               tuned_file << t_o
-              h={ obj: '', sym: :table_close, num: @num_id[:table] }
+              h={
+                is_for: :table,
+                obj: '',
+                sym: :table_close,
+                num: @num_id[:table],
+              }
               t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
               t_o
             elsif t_o=~/^```[ ]+table(?:~h)?\s+/
               m1,m2,hd=nil,nil,nil
               h=case t_o
-              when /^```[ ]+table~h\s+(.+?)\n(.+)\Z/m          #two table representations should be consolidated as one
+              when /^```[ ]+table~h\s+(.+?)\n(.+)\Z/m      #two table representations should be consolidated as one
                 m1,tbl,hd=$1,$2,true
-              when /^```[ ]+table\s+(.+?)\n(.+)\Z/m            #two table representations should be consolidated as one
+              when /^```[ ]+table\s+(.+?)\n(.+)\Z/m        #two table representations should be consolidated as one
                 m1,tbl,hd=$1,$2,false
               else nil
               end
@@ -583,13 +731,26 @@ module SiSU_AO_DocumentStructureExtract
               rws=tbl.split(/\n/)
               rows=''
               rws.each do |r|
-                r=r.gsub(/\s*\|\s*/m,"#{Mx[:tc_p]}")        #r.gsub!(/\|/m,"#{Mx[:tc_p]}")
+                r=r.gsub(/\s*\|\s*/m,"#{Mx[:tc_p]}")       #r.gsub!(/\|/m,"#{Mx[:tc_p]}")
                 rows += r + Mx[:tc_c]
               end
-              h={ head_: hd, cols: col.length, widths: col, obj: rows, idx: idx, tags: tags, num: @num_id[:table] }
+              h={
+                head_: hd,
+                cols: col.length,
+                widths: col,
+                obj: rows,
+                idx: idx,
+                tags: tags,
+                num: @num_id[:table],
+              }
               t_o=SiSU_AO_DocumentStructure::ObjectTable.new.table(h) unless h.nil?
               tuned_file << t_o
-              h={ obj: '', sym: :table_close, num: @num_id[:table] }
+              h={
+                is_for: :table,
+                obj: '',
+                sym: :table_close,
+                num: @num_id[:table],
+                }
               t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
               t_o
             elsif t_o=~/^\{table(?:~h)?\s+/
@@ -606,13 +767,26 @@ module SiSU_AO_DocumentStructureExtract
               rws=tbl.split(/\n/)
               rows=''
               rws.each do |r|
-                r=r.gsub(/\s*\|\s*/m,"#{Mx[:tc_p]}")        #r.gsub!(/\|/m,"#{Mx[:tc_p]}")
+                r=r.gsub(/\s*\|\s*/m,"#{Mx[:tc_p]}")       #r.gsub!(/\|/m,"#{Mx[:tc_p]}")
                 rows += r + Mx[:tc_c]
               end
-              h={ head_: hd, cols: col.length, widths: col, obj: rows, idx: idx, tags: tags, num: @num_id[:table] }
+              h={
+                head_: hd,
+                cols: col.length,
+                widths: col,
+                obj: rows,
+                idx: idx,
+                tags: tags,
+                num: @num_id[:table],
+              }
               t_o=SiSU_AO_DocumentStructure::ObjectTable.new.table(h) unless h.nil?
               tuned_file << t_o
-              h={ obj: '', sym: :table_close, num: @num_id[:table] }
+              h={
+                is_for: :table,
+                obj: '',
+                sym: :table_close,
+                num: @num_id[:table],
+              }
               t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
               t_o
             end
@@ -626,11 +800,22 @@ module SiSU_AO_DocumentStructureExtract
           and t_o =~/^```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/)
             @@flag[:table]=:off
             headings,columns,widths,idx=@h[:head_],@h[:cols],@h[:widths],@h[:idx]
-            @h={ head_: headings, cols: columns, widths: widths, idx: idx, obj: @rows }
+            @h={
+              head_: headings,
+              cols: columns,
+              widths: widths,
+              idx: idx,
+              obj: @rows,
+            }
             t_o=SiSU_AO_DocumentStructure::ObjectTable.new.table(@h)
             tuned_file << t_o
             @h,@rows=nil,''
-            h={ obj: '', sym: :table_close, num: @num_id[:table] }
+            h={
+              is_for: :table,
+              obj: '',
+              sym: :table_close,
+              num: @num_id[:table],
+            }
             t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
             t_o
           else
@@ -650,12 +835,23 @@ module SiSU_AO_DocumentStructureExtract
             @tuned_code[-1].gsub!(/\s*(?:#{Mx[:br_line]}|#{Mx[:br_nl]})\s*\Z/m,'')
             obj=@tuned_code.join("\n")
             tags=[]
-            h={ obj: obj, syntax: @@flag[:lngsyn], tags: tags, num: @num_id[:code_block], number_: @codeblock_numbered }
+            h={
+              obj: obj,
+              syntax: @@flag[:lngsyn],
+              tags: tags,
+              num: @num_id[:code_block],
+              number_: @codeblock_numbered,
+            }
             @@flag[:lngsyn]=:txt
             t_o=SiSU_AO_DocumentStructure::ObjectBlockTxt.new.code(h)
             @tuned_code=[]
             tuned_file << t_o
-            h={ obj: '', sym: :code_close, num: @num_id[:code_block] }
+            h={
+              is_for: :code,
+              obj: '',
+              sym: :code_close,
+              num: @num_id[:code_block],
+            }
             t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
           end
           if (@@flag[:code]==:curls or @@flag[:code]==:tics) \
@@ -676,55 +872,109 @@ module SiSU_AO_DocumentStructureExtract
           if (@@flag[:poem]==:curls and t_o =~/^\}poem/) \
           or (@@flag[:poem]==:tics and t_o =~/^```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/)
             @@flag[:poem]=:off
-            h={ obj: '', sym: :poem_close, num: @num_id[:poem] }
+            h={
+              is_for: :poem,
+              obj: '',
+              sym: :poem_close,
+              num: @num_id[:poem],
+            }
             t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
           elsif (@@flag[:box]==:curls and t_o =~/^\}box/) \
           or (@@flag[:box]==:tics and t_o =~/^```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/)
             @@flag[:box]=:off
             obj,tags=extract_tags(@tuned_block.join("\n"))
-            h={ obj: obj, tags: tags, num: @num_id[:box] }
+            h={
+              obj: obj,
+              tags: tags,
+              num: @num_id[:box],
+            }
             @tuned_block=[]
             t_o=SiSU_AO_DocumentStructure::ObjectBlockTxt.new.box(h)
             tuned_file << t_o
-            h={ obj: '', sym: :box_close, num: @num_id[:box] }
+            h={
+              is_for: :box,
+              obj: '',
+              sym: :box_close,
+              num: @num_id[:box],
+            }
             t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
           elsif (@@flag[:group]==:curls and t_o =~/^\}group/) \
           or (@@flag[:group]==:tics and t_o =~/^```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/)
             @@flag[:group]=:off
             obj,tags=extract_tags(@tuned_block.join("\n"))
-            h={ obj: obj, tags: tags, num: @num_id[:group] }
+            h={
+              obj: obj,
+              tags: tags,
+              num: @num_id[:group],
+            }
             @tuned_block=[]
             t_o=SiSU_AO_DocumentStructure::ObjectBlockTxt.new.group(h)
             tuned_file << t_o
-            h={ obj: '', sym: :group_close, num: @num_id[:group] }
+            h={
+              is_for: :group,
+              obj: '',
+              sym: :group_close,
+              num: @num_id[:group],
+            }
             t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
           elsif (@@flag[:block]==:curls and t_o =~/^\}block/) \
           or (@@flag[:block]==:tics and t_o =~/^```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/)
             @@flag[:block]=:off
             obj,tags=extract_tags(@tuned_block.join("\n"))
-            h={ obj: obj, tags: tags, num: @num_id[:block] }
+            h={
+              obj: obj,
+              tags: tags,
+              num: @num_id[:block],
+            }
             @tuned_block=[]
             t_o=SiSU_AO_DocumentStructure::ObjectBlockTxt.new.block(h)
             tuned_file << t_o
-            h={ obj: '', sym: :block_close, num: @num_id[:block] }
+            h={
+              is_for: :block,
+              obj: '',
+              sym: :block_close,
+              num: @num_id[:block],
+            }
             t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
           elsif (@@flag[:alt]==:curls and t_o =~/^\}alt/) \
           or (@@flag[:alt]==:tics and t_o =~/^```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/)
             @@flag[:alt]=:off
             obj,tags=extract_tags(@tuned_block.join("\n"))
-            h={ obj: obj, tags: tags, num: @num_id[:alt] }
+            h={
+              obj: obj,
+              tags: tags,
+              num: @num_id[:alt],
+            }
             t_o=SiSU_AO_DocumentStructure::ObjectBlockTxt.new.alt(h)
             @tuned_block=[]
             tuned_file << t_o
-            h={ obj: '', sym: :alt_close, num: @num_id[:alt] }
+            h={
+              is_for: :alt,
+              obj: '',
+              sym: :alt_close,
+              num: @num_id[:alt],
+            }
             t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
           elsif @@flag[:quote]==:open and t_o =~/`:quote_close`/m
             @@flag[:quote]=:off
-            h={ obj: '', sym: :quote_close, num: @num_id[:quote] }
+            h={
+              is_for: :quote,
+              obj: '',
+              sym: :quote_close,
+              num: @num_id[:quote],
+            }
             t_o=SiSU_AO_DocumentStructure::ObjectLayout.new.open_close(h)
           elsif @@flag[:quote]==:open
             t_o,tags=extract_tags(t_o)
-            h={ indent: 1, obj: t_o, idx: idx, note_: note, image_: image, tags: tags, quote: quotes? }
+            h={
+              indent: 1,
+              obj: t_o,
+              idx: idx,
+              note_: note,
+              image_: image,
+              tags: tags,
+              quote: quotes?,
+            }
             SiSU_AO_DocumentStructure::ObjectPara.new.paragraph(h)
           end
           if (@@flag[:poem]==:curls or @@flag[:poem]==:tics \
@@ -741,7 +991,11 @@ module SiSU_AO_DocumentStructureExtract
               poem.each do |v|
                 v=v.gsub(/\n/m,"#{Mx[:br_nl]}\n")
                 obj,tags=extract_tags(v)
-                h={ obj: obj, tags: tags, num: @num_id[:poem] }
+                h={
+                  obj: obj,
+                  tags: tags,
+                  num: @num_id[:poem],
+                }
                 t_o=SiSU_AO_DocumentStructure::ObjectBlockTxt.new.verse(h)
                 tuned_file << t_o
               end
@@ -779,26 +1033,67 @@ module SiSU_AO_DocumentStructureExtract
       end
       if @md.flag_endnotes
         tuned_file << @pb
-        h={ ln: 1, lc: 1, obj: 'Endnotes', autonum_: false }
+        h={
+          ln: 1,
+          lc: 1,
+          obj: 'Endnotes',
+          autonum_: false,
+        }
         tuned_file << SiSU_AO_DocumentStructure::ObjectHeading.new.heading_insert(h)
-        h={ ln: 4, lc: 2, obj: 'Endnotes', name: 'endnotes', autonum_: false }
+        h={
+          ln: 4,
+          lc: 2,
+          obj: 'Endnotes',
+          name: 'endnotes',
+          autonum_: false,
+        }
         tuned_file << SiSU_AO_DocumentStructure::ObjectHeading.new.heading_insert(h)
-        h={ obj: 'Endnotes' }
+        h={
+          obj: 'Endnotes'
+          }
       end
       if @md.book_idx
         tuned_file << @pb
-        h={ ln: 1, lc: 1, obj: 'Index', autonum_: false }
+        h={
+          ln: 1,
+          lc: 1,
+          obj: 'Index',
+          autonum_: false,
+        }
         tuned_file << SiSU_AO_DocumentStructure::ObjectHeading.new.heading_insert(h)
-        h={ ln: 4, lc: 2, obj: 'Index', name: 'book_index', autonum_: false }
+        h={
+          ln: 4,
+          lc: 2,
+          obj: 'Index',
+          name: 'book_index',
+          autonum_: false,
+        }
         tuned_file << SiSU_AO_DocumentStructure::ObjectHeading.new.heading_insert(h)
-        h={ obj: 'Index' }
+        h={
+          obj: 'Index'
+        }
       end
       tuned_file << @pb
-      h={ ln: 1, lc: 1, obj: 'Metadata', autonum_: false, ocn_: false }
+      h={
+        ln: 1,
+        lc: 1,
+        obj: 'Metadata',
+        autonum_: false,
+        ocn_: false,
+      }
       tuned_file << SiSU_AO_DocumentStructure::ObjectHeading.new.heading_insert(h)
-      h={ ln: 4, lc: 2, obj: 'SiSU Metadata, document information', name: 'metadata', autonum_: false, ocn_: false }
+      h={
+        ln: 4,
+        lc: 2,
+        obj: 'SiSU Metadata, document information',
+        name: 'metadata',
+        autonum_: false,
+        ocn_: false,
+      }
       tuned_file << SiSU_AO_DocumentStructure::ObjectHeading.new.heading_insert(h)
-      h={ obj: 'eof' }
+      h={
+        obj: 'eof',
+      }
       meta=SiSU_AO_DocumentStructure::ObjectMetadata.new.metadata(@metadata)
       [tuned_file,meta]
     end
@@ -811,11 +1106,20 @@ module SiSU_AO_DocumentStructureExtract
       table
     end
     def meta_heading(h)
-      h={ lv: h[:lv], ln: h[:ln], name: h[:name], obj: h[:obj], ocn: '0' }
+      h={
+        lv: h[:lv],
+        ln: h[:ln],
+        name: h[:name],
+        obj: h[:obj],
+        ocn: '0',
+      }
       SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
     end
     def meta_para(str)
-      h={ obj: str, ocn_: false }
+      h={
+        obj: str,
+        ocn_: false,
+      }
       SiSU_AO_DocumentStructure::ObjectPara.new.paragraph(h)
     end
     def build_lines(type=:none)
@@ -831,7 +1135,7 @@ module SiSU_AO_DocumentStructureExtract
           line=line.gsub(/^/,"#{Mx[:gr_o]}codeline#{Mx[:gr_c]}") if type==:code # REMOVE try sort for texpdf special case
           line=if line =~/(?:https?|file|ftp):\/\/\S+$/
             line.gsub(/\s*$/," #{Mx[:br_nl]}")
-          else line.gsub(/\s*$/,"#{Mx[:br_nl]}") #unless type=='code'
+          else line.gsub(/\s*$/,"#{Mx[:br_nl]}")           #unless type=='code'
           end
         elsif line =~/^\s*$/
           line.gsub(/\s*$/,"#{Mx[:br_nl]}")
@@ -843,45 +1147,74 @@ module SiSU_AO_DocumentStructureExtract
     end
   end
   class Structure                                          # this must happen early
-    def initialize(md,dob)
-      @md,@dob=md,dob
+    def initialize(md)
+      @md=md
     end
-    def structure
-      structure_markup
-      @dob
+    def structure(data)
+      data.compact.each do |dob|
+        structure_markup(dob)
+      end
     end
-    def structure_markup                                   #build structure where structure provided only in meta header
-      @dob=if @dob.is==:para \
-      && (((@dob.hang !~/[1-9]/) && (@dob.indent !~/[1-9]/)) \
-      || (@dob.hang != @dob.indent)) \
-      and not @dob.bullet_
-        @dob=case @dob.obj
+    def structure_markup(dob)                                   #build structure where structure provided only in meta header
+      dob=if dob.is==:para \
+      && (((dob.hang !~/[1-9]/) && (dob.indent !~/[1-9]/)) \
+      || (dob.hang != dob.indent)) \
+      and not dob.bullet_
+        dob=case dob.obj
         when /^#{@md.lv0}/
-          h={ lv: 'A', ln: 0 }
-          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
+          h={
+            is: :heading,
+            lv: 'A',
+            ln: 0,
+          }
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,dob)
         when /^#{@md.lv1}/
-          h={ lv: 'B', ln: 1 }
-          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
+          h={
+            is: :heading,
+            lv: 'B',
+            ln: 1,
+          }
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,dob)
         when /^#{@md.lv2}/
-          h={ lv: 'C', ln: 2 }
-          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
+          h={
+            is: :heading,
+            lv: 'C',
+            ln: 2,
+          }
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,dob)
         when /^#{@md.lv3}/
-          h={ lv: 'D', ln: 3 }
-          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
+          h={
+            is: :heading,
+            lv: 'D',
+            ln: 3,
+          }
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,dob)
         when /^#{@md.lv4}/
-          h={ lv: '1', ln: 4 }
-          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
+          h={
+            is: :heading,
+            lv: '1',
+            ln: 4,
+          }
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,dob)
         when /^#{@md.lv5}/
-          h={ lv: '2', ln: 5 }
-          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
+          h={
+            is: :heading,
+            lv: '2',
+            ln: 5,
+          }
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,dob)
         when /^#{@md.lv6}/
-          h={ lv: '3', ln: 6 }
-          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
-        else @dob
+          h={
+            is: :heading,
+            lv: '3',
+            ln: 6,
+          }
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,dob)
+        else dob
         end
-      else @dob
+      else dob
       end
-      @dob
+      dob
     end
   end
   class OCN
@@ -1269,7 +1602,8 @@ SKIPPED processing file: [#{@md.opt.lng}] "#{@md.fns}"}
           end
           if dob.is==:heading
             if ocn_flag==true
-              dob.ln,dob.node,dob.ocn,dob.ocn_,dob.odv,dob.osp,dob.parent,dob.lc=ln,node,ocn,ocn_flag,ocn_dv,ocn_sp,parent,collapsed_level
+              dob.ln,dob.node,dob.ocn,dob.ocn_,dob.odv,dob.osp,dob.parent,dob.lc=
+                ln,  node,    ocn,    ocn_flag, ocn_dv,ocn_sp, parent,    collapsed_level
             else
               ocnu+=1
               heading_use=:ok
@@ -1280,19 +1614,22 @@ SKIPPED processing file: [#{@md.opt.lng}] "#{@md.fns}"}
                 dob.obj=dob.obj.gsub(/#{Mx[:pa_non_object_dummy_heading]}/,'')
                 heading_use=:dummy
               end
-              dob.ln,dob.node,dob.ocn,dob.ocn_,dob.use_,dob.odv,dob.osp,dob.parent,dob.lc=ln,node,nil,ocn_flag,heading_use,ocn_dv,ocn_sp,parent,collapsed_level
+              dob.ln,dob.node,dob.ocn,dob.ocn_,dob.use_,   dob.odv,dob.osp,dob.parent,dob.lc=
+                ln,  node,    nil,    ocn_flag,heading_use,ocn_dv, ocn_sp, parent,    collapsed_level
             end
           else
             if dob.of !=:meta \
             && dob.of !=:comment \
             && dob.of !=:layout
               if ocn_flag == true
-                dob.ocn,dob.ocn_,dob.odv,dob.osp,dob.parent=ocn,ocn_flag,ocn_dv,ocn_sp,parent
+                dob.ocn,dob.ocn_,dob.odv,dob.osp,dob.parent=
+                  ocn,  ocn_flag,ocn_dv, ocn_sp, parent
               else
                 ocnu+=1
                 dob.obj=dob.obj.gsub(/#{Mx[:fa_o]}[~-]##{Mx[:fa_c]}/,'') if dob.obj
                 ocn_dv,ocn_sp="u#{ocnu}","u#{ocnu}"
-                dob.ocn,dob.ocn_,dob.odv,dob.osp,dob.parent=nil,ocn_flag,ocn_dv,ocn_sp,parent
+                dob.ocn,dob.ocn_,dob.odv,dob.osp,dob.parent=
+                  nil,  ocn_flag,ocn_dv, ocn_sp, parent
               end
             end
           end
@@ -1340,7 +1677,10 @@ SKIPPED processing file: [#{@md.opt.lng}] "#{@md.fns}"}
       data=@data
       tuned_file=[]
       hs=[0,false,false,false]
-      t={ lv: @s[0], status: :open }
+      t={
+        lv: @s[0],
+        status: :open,
+      }
       tuned_file << tags(t)
       if @md.opt.act[:verbose_plus][:set]==:on
         puts "\nXML sisu structure outline --->\n"
@@ -1432,7 +1772,13 @@ SKIPPED processing file: [#{@md.opt.lng}] "#{@md.fns}"}
       when '5' then 8
       when '6' then 9
       end
-      h={ tag: tag, node: o[:node], lv: o[:lv], ln: ln, status: o[:status] }
+      h={
+        tag: tag,
+        node: o[:node],
+        lv: o[:lv],
+        ln: ln,
+        status: o[:status],
+      }
       SiSU_AO_DocumentStructure::ObjectStructure.new.xml_dom(h) #downstream code utilise else ignore like comments
     end
     def tag_open(o,tag)
@@ -1445,121 +1791,205 @@ SKIPPED processing file: [#{@md.opt.lng}] "#{@md.fns}"}
       case hs[0]
       when 0
         if (lev <= 0) and hs[0]
-          t={ lv: @s[0], status: :close }
+          t={
+            lv: @s[0],
+            status: :close,
+          }
           ary << tags(t)
         end
       when 1
         if (lev <= 1) and hs[1]
-          t={ lv: @s[1], status: :close }
+          t={
+            lv: @s[1],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev==0)
-          t={ lv: @s[0], status: :close }
+          t={
+            lv: @s[0],
+            status: :close,
+          }
           ary << tags(t)
         end
       when 2
         if (lev <= 2) and hs[2]
-          t={ lv: @s[2], status: :close }
+          t={
+            lv: @s[2],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 1) and hs[1]
-          t={ lv: @s[1], status: :close }
+          t={
+            lv: @s[1],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev==0)
-          t={ lv: @s[0], status: :close }
+          t={
+            lv: @s[0],
+            status: :close,
+          }
           ary << tags(t)
         end
       when 3
         if (lev <= 3) and hs[3]
-          t={ lv: @s[3], status: :close }
+          t={
+            lv: @s[3],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 2) and hs[2]
-          t={ lv: @s[2], status: :close }
+          t={
+            lv: @s[2],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 1) and hs[1]
-          t={ lv: @s[1], status: :close }
+          t={
+            lv: @s[1],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev==0)
-          t={ lv: @s[0], status: :close }
+          t={
+            lv: @s[0],
+            status: :close,
+          }
           ary << tags(t)
         end
       when 4
         if (lev <= 4)
-          t={ lv: @s[4], status: :close }
+          t={
+            lv: @s[4],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 3) and hs[3]
-          t={ lv: @s[3], status: :close }
+          t={
+            lv: @s[3],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 2) and hs[2]
-          t={ lv: @s[2], status: :close }
+          t={
+            lv: @s[2],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 1) and hs[1]
-          t={ lv: @s[1], status: :close }
+          t={
+            lv: @s[1],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev==0)
-          t={ lv: @s[0], status: :close }
+          t={
+            lv: @s[0],
+            status: :close,
+          }
           ary << tags(t)
         end
       when 5
         if (lev <= 5)
-          t={ lv: @s[5], status: :close }
+          t={
+            lv: @s[5],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 4)
-          t={ lv: @s[4], status: :close }
+          t={
+            lv: @s[4],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 3) and hs[3]
-          t={ lv: @s[3], status: :close }
+          t={
+            lv: @s[3],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 2) and hs[2]
-          t={ lv: @s[2], status: :close }
+          t={
+            lv: @s[2],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 1) and hs[1]
-          t={ lv: @s[1], status: :close }
+          t={
+            lv: @s[1],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev==0)
-          t={ lv: @s[0], status: :close }
+          t={
+            lv: @s[0],
+            status: :close,
+          }
           ary << tags(t)
         end
       when 6
         if (lev <= 6)
-          t={ lv: @s[6], status: :close }
+          t={
+            lv: @s[6],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 5)
-          t={ lv: @s[5], status: :close }
+          t={
+            lv: @s[5],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 4)
-          t={ lv: @s[4], status: :close }
+          t={
+            lv: @s[4],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 3) and hs[3]
-          t={ lv: @s[3], status: :close }
+          t={
+            lv: @s[3],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 2) and hs[2]
-          t={ lv: @s[2], status: :close }
+          t={
+            lv: @s[2],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev <= 1) and hs[1]
-          t={ lv: @s[1], status: :close }
+          t={
+            lv: @s[1],
+            status: :close,
+          }
           ary << tags(t)
         end
         if (lev==0)
-          t={ lv: @s[0], status: :close }
+          t={
+            lv: @s[0],
+            status: :close,
+          }
           ary << tags(t)
         end
       end
diff --git a/lib/sisu/v6/ao_endnotes.rb b/lib/sisu/v6/ao_endnotes.rb
index 21509098..dbc8b214 100644
--- a/lib/sisu/v6/ao_endnotes.rb
+++ b/lib/sisu/v6/ao_endnotes.rb
@@ -63,8 +63,12 @@
 module SiSU_AO_Endnotes
   class Endnotes
     def initialize(md,data,endnote_array=nil)
-      @md,@data,@endnote_array=md,data,endnote_array
-      @endnote_counter,@endnote_counter_asterisk,@endnote_counter_dag=1,1,1
+      @md,@data,@endnote_array=
+      md, data, endnote_array
+      @endnote_counter,
+        @endnote_counter_asterisk,
+        @endnote_counter_dag=
+        1,1,1
     end
     def endnotes
       data=@data
@@ -73,17 +77,20 @@ module SiSU_AO_Endnotes
       data.each do |dob|
                                                                                # manually numbered endnotes <!e(\d)!> <!e_(\d)!> -->
         if @md.opt.mod.inspect =~/--no-asterisk|--no-annotate/
-          dob.obj=dob.obj.gsub(/#{Mx[:en_b_o]}\s.+?#{Mx[:en_b_c]}/,'')
+          dob.obj=dob.obj.
+            gsub(/#{Mx[:en_b_o]}\s.+?#{Mx[:en_b_c]}/,'')
         end
         if @md.opt.mod.inspect =~/--no-dagger|--no-annotate/
-          dob.obj=dob.obj.gsub(/#{Mx[:en_b_o]}[+]\s.+?#{Mx[:en_b_c]}/,'')
+          dob.obj=dob.obj.
+            gsub(/#{Mx[:en_b_o]}[+]\s.+?#{Mx[:en_b_c]}/,'')
         end
         if (defined? dob.obj) \
         && (defined? dob.is) \
         && dob.is !=:code
           case dob.obj                                                         # auto-numbered endnotes <!e!> <!e_!> -->
           when /#{Mx[:en_a_o]}.+?#{Mx[:en_a_c]}|#{Mx[:en_b_o]}[*+]\s+.+?#{Mx[:en_b_c]}/
-            dob.obj=dob.obj.gsub(/\s*(#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/,'\1')
+            dob.obj=dob.obj.
+              gsub(/\s*(#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/,'\1')
             word_mode=dob.obj.scan(/\S+/m)
             word_mode=endnote_call_number(word_mode)
             dob.obj=word_mode.join(' ')
@@ -97,7 +104,10 @@ module SiSU_AO_Endnotes
         end
         @tuned_file << dob
       end
-      @endnote_counter,@endnote_counter_asterisk,@endnote_counter_dag=1,1,1
+      @endnote_counter,
+        @endnote_counter_asterisk,
+        @endnote_counter_dag=
+        1,1,1
       @tuned_file=@tuned_file.flatten
     end
     def endnote_call_number(words)
@@ -105,20 +115,24 @@ module SiSU_AO_Endnotes
         case word
         when /#{Mx[:en_a_o]}/
           unless word =~/#{Mx[:en_a_o]}[*+]+/
-            word.gsub!(/#{Mx[:en_a_o]}/,"#{Mx[:en_a_o]}#{@endnote_counter} ")
+            word.gsub!(/#{Mx[:en_a_o]}/,
+              "#{Mx[:en_a_o]}#{@endnote_counter} ")
             @endnote_counter+=1
           end
         when /#{Mx[:en_b_o]}/
           if word =~/#{Mx[:en_b_o]}[+]/
-            word.gsub!(/#{Mx[:en_b_o]}[+]/,"#{Mx[:en_b_o]}\+#{@endnote_counter_dag} ")
+            word.gsub!(/#{Mx[:en_b_o]}[+]/,
+              "#{Mx[:en_b_o]}\+#{@endnote_counter_dag} ")
             @endnote_counter_dag+=1
           else
-            word.gsub!(/#{Mx[:en_b_o]}[*]?/,"#{Mx[:en_b_o]}\*#{@endnote_counter_asterisk} ")
+            word.gsub!(/#{Mx[:en_b_o]}[*]?/,
+              "#{Mx[:en_b_o]}\*#{@endnote_counter_asterisk} ")
             @endnote_counter_asterisk+=1
           end
         when /~\^|<:e>/
           if @endnote_array
-            word.gsub!(/~\^|<:e>/,"#{@endnote_array[@endnote_counter-1]}")
+            word.gsub!(/~\^|<:e>/,
+              "#{@endnote_array[@endnote_counter-1]}")
             @endnote_counter+=1
           end
         end
diff --git a/lib/sisu/v6/ao_expand_insertions.rb b/lib/sisu/v6/ao_expand_insertions.rb
index 22e3b1ea..eee89f3e 100644
--- a/lib/sisu/v6/ao_expand_insertions.rb
+++ b/lib/sisu/v6/ao_expand_insertions.rb
@@ -77,33 +77,53 @@ module SiSU_AO_Insertions
       end
       file_type_names={}
       file_type_names[:gen],file_type_names[:src]=[],[]
-      file_type_names[:gen] <<= if cmd_list =~ /y/ then "~^ { document manifest }#{lnk[:manifest]}"
+      file_type_names[:gen] <<= if cmd_list =~ /y/
+        "~^ { document manifest }#{lnk[:manifest]}"
       end
-      file_type_names[:gen] <<= if cmd_list =~ /h/ then [" { html, segmented text }#{lnk[:html_toc]}"," { html, scroll, document in one }#{lnk[:html_doc]}"]
+      file_type_names[:gen] <<= if cmd_list =~ /h/
+        [
+          " { html, segmented text }#{lnk[:html_toc]}",
+          " { html, scroll, document in one }#{lnk[:html_doc]}",
+        ]
       end
-      file_type_names[:gen] <<= if cmd_list =~ /e/ then [" { epub }#{lnk[:epub]}"]
+      file_type_names[:gen] <<= if cmd_list =~ /e/
+        [" { epub }#{lnk[:epub]}"]
       end
-      file_type_names[:gen] <<= if cmd_list =~ /p/ then [" { pdf, landscape }#{lnk[:pdf_landscape]}"," { pdf, portrait }#{lnk[:pdf_portrait]}"]
+      file_type_names[:gen] <<= if cmd_list =~ /p/
+        [
+          " { pdf, landscape }#{lnk[:pdf_landscape]}",
+          " { pdf, portrait }#{lnk[:pdf_portrait]}",
+        ]
       end
-      file_type_names[:gen] <<= if cmd_list =~ /o/ then " { odf:odt, open document text }#{lnk[:odt]}"
+      file_type_names[:gen] <<= if cmd_list =~ /o/
+        " { odf:odt, open document text }#{lnk[:odt]}"
       end
-      file_type_names[:gen] <<= if cmd_list =~ /b/ then " { xhtml scroll }#{lnk[:xhtml]}"
+      file_type_names[:gen] <<= if cmd_list =~ /b/
+        " { xhtml scroll }#{lnk[:xhtml]}"
       end
-      file_type_names[:gen] <<= if cmd_list =~ /x/ then " { xml, sax }#{lnk[:xml_sax]}"
+      file_type_names[:gen] <<= if cmd_list =~ /x/
+        " { xml, sax }#{lnk[:xml_sax]}"
       end
-      file_type_names[:gen] <<= if cmd_list =~ /X/ then " { xml, dom }#{lnk[:xml_dom]}"
+      file_type_names[:gen] <<= if cmd_list =~ /X/
+        " { xml, dom }#{lnk[:xml_dom]}"
       end
-      file_type_names[:gen] <<= if cmd_list =~ /a/ then " { plain text utf-8 }#{lnk[:txt]}"
+      file_type_names[:gen] <<= if cmd_list =~ /a/
+        " { plain text utf-8 }#{lnk[:txt]}"
       end
-      file_type_names[:gen] <<= if cmd_list =~ /g/ then 'wiki.txt'
+      file_type_names[:gen] <<= if cmd_list =~ /g/
+        'wiki.txt'
       end
-      file_type_names[:gen] <<= if cmd_list =~ /w/ then " { concordance }#{lnk[:html_concordance]}"
+      file_type_names[:gen] <<= if cmd_list =~ /w/
+        " { concordance }#{lnk[:html_concordance]}"
       end
-      file_type_names[:gen] <<= if cmd_list =~ /N/ then " { dcc, document content certificate (digests) }#{lnk[:digest]}"
+      file_type_names[:gen] <<= if cmd_list =~ /N/
+        " { dcc, document content certificate (digests) }#{lnk[:digest]}"
       end
-      file_type_names[:src] <<= if source and cmd_shortcut =~ /s/ then " { markup source text }#{lnk[:source]}"
+      file_type_names[:src] <<= if source and cmd_shortcut =~ /s/
+        " { markup source text }#{lnk[:source]}"
       end
-      file_type_names[:src] <<= if cmd_shortcut =~ /S/ then " { markup source (zipped) pod }#{lnk[:sisupod]}"
+      file_type_names[:src] <<= if cmd_shortcut =~ /S/
+        " { markup source (zipped) pod }#{lnk[:sisupod]}"
       end
       file_type_names[:gen]=file_type_names[:gen].flatten
       file_type_names[:src]=file_type_names[:src].flatten
diff --git a/lib/sisu/v6/ao_hash_digest.rb b/lib/sisu/v6/ao_hash_digest.rb
index 257902f4..b5a6aaea 100644
--- a/lib/sisu/v6/ao_hash_digest.rb
+++ b/lib/sisu/v6/ao_hash_digest.rb
@@ -85,8 +85,8 @@ module SiSU_AO_Hash
           t_o.obj=t_o.obj.strip
         end
         if (t_o.of !=:structure \
-        && t_o.of !=:comment \
-        && t_o.of !=:layout) \
+        && t_o.of  !=:comment \
+        && t_o.of  !=:layout) \
         && t_o.ocn.is_a?(Fixnum)
           case sha_
           when :sha512
@@ -114,7 +114,9 @@ module SiSU_AO_Hash
         t_o_bit <<= case en_plus
         when /#{Mx[:en_a_o]}|#{Mx[:en_b_o]}/
           if en_plus =~/#{Mx[:en_a_o]}.+?#{Mx[:en_a_c]}|#{Mx[:en_b_o]}.+?#{Mx[:en_b_c]}/
-            t_o_txt,en_open,en_txt,en_close=/(.*?)(#{Mx[:en_a_o]}|#{Mx[:en_b_o]})(.+?)(#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/m.match(en_plus)[1..4]
+            t_o_txt,en_open,en_txt,en_close=
+              /(.*?)(#{Mx[:en_a_o]}|#{Mx[:en_b_o]})(.+?)(#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/m.
+              match(en_plus)[1..4]
             stripped_en=SiSU_TextRepresentation::Alter.new(en_txt).strip_clean_of_markup
             digest_en_strip=case @env.digest(@md.opt).type
             when :sha512
@@ -126,7 +128,13 @@ module SiSU_AO_Hash
             else
               Digest::SHA256.hexdigest(stripped_en)
             end
-            t_o_txt + en_open + en_txt + Mx[:id_o] + digest_en_strip + Mx[:id_c] + en_close
+            t_o_txt +
+              en_open +
+              en_txt +
+              Mx[:id_o] +
+              digest_en_strip +
+              Mx[:id_c] +
+              en_close
           else STDERR.puts "Error Exception - problem encountered with:\n#{en_plus}" #arbitrary exception, tidy up
           end
         else en_plus
@@ -143,8 +151,10 @@ module SiSU_AO_Hash
         case t_o.obj
         when /#{Mx[:en_a_o]}[\d*+]+\s+.+?#{Mx[:en_a_c]}|#{Mx[:en_b_o]}[*+]\d+\s+.+?#{Mx[:en_b_c]}/m
           en_and_t_o_digest=[]
-          t_o.obj=t_o.obj.gsub(/\s*(#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/m,' \1') #watch
-          t_o_plus_en=t_o.obj.scan(/.*?#{Mx[:en_a_o]}.+?#{Mx[:en_a_c]}|.*?#{Mx[:en_b_o]}.+?#{Mx[:en_b_c]}/m)
+          t_o.obj=t_o.obj.
+            gsub(/\s*(#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/m,' \1') #watch
+          t_o_plus_en=t_o.obj.
+            scan(/.*?#{Mx[:en_a_o]}.+?#{Mx[:en_a_c]}|.*?#{Mx[:en_b_o]}.+?#{Mx[:en_b_c]}/m)
           t_o_tail=if t_o.obj =~/(?:.*?#{Mx[:en_a_o]}.+?#{Mx[:en_a_c]}|.*?#{Mx[:en_b_o]}.+?#{Mx[:en_b_c]})+([\s\S]+)/m
             /(?:.*?#{Mx[:en_a_o]}.+?#{Mx[:en_a_c]}|.*?#{Mx[:en_b_o]}.+?#{Mx[:en_b_c]})+.*/m.match(t_o.obj)[1]
           else ''
diff --git a/lib/sisu/v6/ao_idx.rb b/lib/sisu/v6/ao_idx.rb
index eaaf7a90..7a4b1f03 100644
--- a/lib/sisu/v6/ao_idx.rb
+++ b/lib/sisu/v6/ao_idx.rb
@@ -67,14 +67,26 @@ module SiSU_AO_BookIndex
       @rgx_idx=/#{Mx[:idx_o]}(?:.+?)#{Mx[:idx_c]}\s*/
       @rgx_idx_ocn_seg=/(.+?)~(\d+)~(\S+)/
       @rgx_idx_ocn=/(.+?)~(\d+)/
-      @ocn_html_identifier=SiSU_Env::ProcessingSettings.new(@md).ocn_html_identifier
+      @ocn_html_identifier=
+        SiSU_Env::ProcessingSettings.new(@md).ocn_html_identifier
       @env ||=SiSU_Env::InfoEnv.new(@md.fns)
     end
     def indexing_song
       data=@data
-      data,sisu_markup_idx_rel,sisu_markup_idx_rel_html_seg,html_idx,xhtml_idx=extract_book_index(data)
-      data=clean_and_insert_index(data,sisu_markup_idx_rel_html_seg)
-      [data,sisu_markup_idx_rel,sisu_markup_idx_rel_html_seg,html_idx,xhtml_idx]
+      data,
+        sisu_markup_idx_rel,
+        sisu_markup_idx_rel_html_seg,
+        html_idx,xhtml_idx=
+          extract_book_index(data)
+      data=
+        clean_and_insert_index(data,sisu_markup_idx_rel_html_seg)
+      [
+        data,
+        sisu_markup_idx_rel,
+        sisu_markup_idx_rel_html_seg,
+        html_idx,
+        xhtml_idx,
+      ]
     end
     def extract_book_index(data)
       tuned_file=[]
@@ -93,13 +105,25 @@ module SiSU_AO_BookIndex
       end
       if idx_array.length > 0
         the_idx=construct_book_index(idx_array)
-        sisu_markup_idx_rel,sisu_markup_idx_rel_html_seg,html_idx,xhtml_idx=nil,nil,nil,nil
         if @md.book_idx
           idx=index(the_idx)
-          sisu_markup_idx_rel,sisu_markup_idx_rel_html_seg,html_idx,xhtml_idx=idx[:sst_rel],idx[:sst_rel_html_seg],idx[:html],idx[:xhtml]
+          sisu_markup_idx_rel,sisu_markup_idx_rel_html_seg,html_idx,  xhtml_idx=
+            idx[:sst_rel],    idx[:sst_rel_html_seg],      idx[:html],idx[:xhtml]
+        else
+          sisu_markup_idx_rel=
+            sisu_markup_idx_rel_html_seg=
+            html_idx=
+            xhtml_idx=
+            nil
         end
       end
-      [tuned_file,sisu_markup_idx_rel,sisu_markup_idx_rel_html_seg,html_idx,xhtml_idx]
+      [
+        tuned_file,
+        sisu_markup_idx_rel,
+        sisu_markup_idx_rel_html_seg,
+        html_idx,
+        xhtml_idx,
+      ]
     end
     def construct_book_index(idx_array)
       the_idx={}
@@ -108,8 +132,12 @@ module SiSU_AO_BookIndex
           location=(term_info[:plus].to_i > 0) \
           ? (%{#{idx[:ocn]}-#{idx[:ocn].to_i + term_info[:plus].to_i}})
           : idx[:ocn].to_s
-          the_idx[term]={} unless the_idx[term] and defined? the_idx[term]
-          the_idx[term]['node_0_terms']=[] unless the_idx[term]['node_0_terms'] and defined? the_idx[term]['node_0_terms']
+          the_idx[term]={} \
+            unless the_idx[term] \
+            and defined? the_idx[term]
+          the_idx[term]['node_0_terms']=[] \
+            unless the_idx[term]['node_0_terms'] \
+            and defined? the_idx[term]['node_0_terms']
           the_idx[term]['node_0_terms'] << { ocn: idx[:ocn], range: location, seg: idx[:seg] }
           if term_info[:sub].is_a?(Array) \
           and term_info[:sub].length > 0
@@ -118,11 +146,20 @@ module SiSU_AO_BookIndex
                 location=(subterm_info[:plus].to_i > 0) \
                 ? (%{#{idx[:ocn]}-#{idx[:ocn].to_i + subterm_info[:plus].to_i}})
                 : idx[:ocn].to_s
-                the_idx[term]={} unless the_idx[term] and defined? the_idx[term]
-                the_idx[term]['node_0_terms']=[] unless the_idx[term]['node_0_terms'] and defined? the_idx[term]['node_0_terms']
-                the_idx[term]['node_1_subterms']={} unless the_idx[term]['node_1_subterms'] and defined? the_idx[term]['node_1_subterms']
-                the_idx[term]['node_1_subterms'][subterm]=[] unless the_idx[term]['node_1_subterms'][subterm] and defined? the_idx[term]['node_1_subterms'][subterm]
-                the_idx[term]['node_1_subterms'][subterm] << { ocn: idx[:ocn], range: location, seg: idx[:seg] }
+                the_idx[term]={} \
+                  unless the_idx[term] \
+                  and defined? the_idx[term]
+                the_idx[term]['node_0_terms']=[] \
+                  unless the_idx[term]['node_0_terms']\
+                  and    defined? the_idx[term]['node_0_terms']
+                the_idx[term]['node_1_subterms']={} \
+                  unless the_idx[term]['node_1_subterms'] \
+                  and defined? the_idx[term]['node_1_subterms']
+                the_idx[term]['node_1_subterms'][subterm]=[] \
+                  unless the_idx[term]['node_1_subterms'][subterm] \
+                  and defined? the_idx[term]['node_1_subterms'][subterm]
+                the_idx[term]['node_1_subterms'][subterm] <<
+                  { ocn: idx[:ocn], range: location, seg: idx[:seg] }
               end
             end
           end
@@ -138,16 +175,27 @@ module SiSU_AO_BookIndex
     def index(the_idx)
       @x=1
       idx={}
-      idx[:sst_rel_html_seg],idx[:sst_rel],idx[:html],idx[:xhtml]=[],[],[],[]
-      h={obj: Mx[:br_page]}
+      idx[:sst_rel_html_seg],idx[:sst_rel],idx[:html],idx[:xhtml]=
+        [],                  [],           [],        []
+      h={
+        obj: Mx[:br_page]
+      }
       o=SiSU_AO_DocumentStructure::ObjectLayout.new.break(h)
       idx[:sst_rel_html_seg] << o
       idx[:sst_rel] << o
-      h={lv: '1', name: 'index', obj: "Index"}
+      h={
+        lv: '1',
+        name: 'index',
+        obj: "Index"
+      }
       o=SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
       idx[:sst_rel_html_seg] << o
       idx[:sst_rel] << o
-      h={lv: '4', name: 'idx', obj: " [Index] #{Mx[:pa_non_object_dummy_heading]}"}
+      h={
+        lv: '4',
+        name: 'idx',
+        obj: " [Index] #{Mx[:pa_non_object_dummy_heading]}"
+      }
       o=SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
       idx[:sst_rel_html_seg] << o
       idx[:sst_rel] << o
@@ -159,15 +207,19 @@ module SiSU_AO_BookIndex
           idx[:html] << ''
           idx[:xhtml] << ''
         else
-          idx[:html] << %{<a href="##{x}">#{x}</a>,#{$ep[:hsp]}}
-          idx[:xhtml] << %{<a href="##{x.downcase}">#{x}</a>,#{$ep[:hsp]}}
+          idx[:html] <<
+            %{<a href="##{x}">#{x}</a>,#{$ep[:hsp]}}
+          idx[:xhtml] <<
+            %{<a href="##{x.downcase}">#{x}</a>,#{$ep[:hsp]}}
         end
       end
       idx[:html] << '</p>'
       idx[:xhtml] << '</p>'
       letter=alph.shift
-      idx[:html] << %{\n<p class="book_index_lev1"><a name="numeral"></a></p>}
-      idx[:xhtml] << %{\n<p class="letter" id="numeral">0 - 9</p>}
+      idx[:html] <<
+        %{\n<p class="book_index_lev1"><a name="numeral"></a></p>}
+      idx[:xhtml] <<
+        %{\n<p class="letter" id="numeral">0 - 9</p>}
       the_idx.each do |i|
         i.each do |x|
           if x.is_a?(String)
@@ -176,18 +228,24 @@ module SiSU_AO_BookIndex
               while letter < f
                 if alph.length > 0
                   letter=alph.shift
-                  idx[:html] << %{\n<p class="letter"><a name="#{letter}">#{letter}</a></p><p class="book_index_lev1"><a name="#{letter.downcase}"> </a></p>}
-                  idx[:xhtml] << %{\n<p class="letter" id="#{letter.downcase}">#{letter}</p>}
+                  idx[:html] <<
+                    %{\n<p class="letter"><a name="#{letter}">#{letter}</a></p><p class="book_index_lev1"><a name="#{letter.downcase}"> </a></p>}
+                  idx[:xhtml] <<
+                    %{\n<p class="letter" id="#{letter.downcase}">#{letter}</p>}
                 else break
                 end
               end
             end
-            idx[:sst_rel_html_seg] << %{\n\n#{Mx[:fa_bold_o]}#{x},#{Mx[:fa_bold_c]} }
-            idx[:sst_rel] << %{\n\n#{Mx[:fa_bold_o]}#{x},#{Mx[:fa_bold_c]} }
+            idx[:sst_rel_html_seg] <<
+              %{\n\n#{Mx[:fa_bold_o]}#{x},#{Mx[:fa_bold_c]} }
+            idx[:sst_rel] <<
+              %{\n\n#{Mx[:fa_bold_o]}#{x},#{Mx[:fa_bold_c]} }
             aname=x.gsub(/\s+/,'_')
-            idx[:html] << %{\n<p class="book_index_lev1"><a name="#{aname}"><b>#{x}</b></a>, }
+            idx[:html] <<
+              %{\n<p class="book_index_lev1"><a name="#{aname}"><b>#{x}</b></a>, }
             c=clean_xml(x.dup)
-            idx[:xhtml] << %{\n<p class="book_index_lev1"><b>#{c}</b>, }
+            idx[:xhtml] <<
+              %{\n<p class="book_index_lev1"><b>#{c}</b>, }
             @o=idx[:sst_rel_html_seg].index(idx[:sst_rel_html_seg].last)
             @t=idx[:sst_rel].index(idx[:sst_rel].last)
             @q=idx[:html].index(idx[:html].last)
@@ -200,16 +258,32 @@ module SiSU_AO_BookIndex
             if x['node_0_terms'].is_a?(Array)
               x['node_0_terms'].each do |a|
                 if a[:range]
-                  idx[:sst_rel_html_seg][@o]=idx[:sst_rel_html_seg][@o] + %{#{Mx[:lnk_o]}#{a[:range]}#{Mx[:lnk_c]}#{Mx[:rel_o]}/#{a[:seg]}.html##{@ocn_html_identifier}#{a[:ocn]}#{Mx[:rel_c]}, }
-                  idx[:sst_rel][@t]=idx[:sst_rel][@t] + %{#{Mx[:lnk_o]}#{a[:range]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{a[:ocn]}#{Mx[:rel_c]}, }
-                  idx[:html][@q]=idx[:html][@q] + %{<a href="#{a[:seg]}.html##{@ocn_html_identifier}#{a[:ocn]}">#{a[:range]}</a>, }
-                  idx[:xhtml][@q]=idx[:xhtml][@q] + %{<a href="#{a[:seg]}.xhtml#o#{a[:ocn]}">#{a[:range]}</a>, }
+                  idx[:sst_rel_html_seg][@o]=
+                    idx[:sst_rel_html_seg][@o] +
+                    %{#{Mx[:lnk_o]}#{a[:range]}#{Mx[:lnk_c]}#{Mx[:rel_o]}/#{a[:seg]}.html##{@ocn_html_identifier}#{a[:ocn]}#{Mx[:rel_c]}, }
+                  idx[:sst_rel][@t]=
+                    idx[:sst_rel][@t] +
+                    %{#{Mx[:lnk_o]}#{a[:range]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{a[:ocn]}#{Mx[:rel_c]}, }
+                  idx[:html][@q]=
+                    idx[:html][@q] +
+                    %{<a href="#{a[:seg]}.html##{@ocn_html_identifier}#{a[:ocn]}">#{a[:range]}</a>, }
+                  idx[:xhtml][@q]=
+                    idx[:xhtml][@q] +
+                    %{<a href="#{a[:seg]}.xhtml#o#{a[:ocn]}">#{a[:range]}</a>, }
                   print a[:range] + ', ' if @md.opt.act[:verbose_plus][:set]==:on
                 elsif a[:ocn]
-                  idx[:sst_rel_html_seg][@o]=idx[:sst_rel_html_seg][@o] + %{#{Mx[:lnk_o]}#{a[:ocn]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{a[:seg]}.html##{@ocn_html_identifier}#{a[:ocn]}#{Mx[:rel_c]}, }
-                  idx[:sst_rel][@t]=idx[:sst_rel][@t] + %{#{Mx[:lnk_o]}#{a[:ocn]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{a[:ocn]}#{Mx[:rel_c]}, }
-                  idx[:html][@q]=idx[:html][@q] + %{<a href="#{a[:seg]}.html##{@ocn_html_identifier}#{a[:ocn]}">#{a[:ocn]}</a>, }
-                  idx[:xhtml][@q]=idx[:xhtml][@q] + %{<a href="#{a[:seg]}.xhtml#o#{a[:ocn]}">#{a[:ocn]}</a>, }
+                  idx[:sst_rel_html_seg][@o]=
+                    idx[:sst_rel_html_seg][@o] +
+                    %{#{Mx[:lnk_o]}#{a[:ocn]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{a[:seg]}.html##{@ocn_html_identifier}#{a[:ocn]}#{Mx[:rel_c]}, }
+                  idx[:sst_rel][@t]=
+                    idx[:sst_rel][@t] +
+                    %{#{Mx[:lnk_o]}#{a[:ocn]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{a[:ocn]}#{Mx[:rel_c]}, }
+                  idx[:html][@q]=
+                    idx[:html][@q] +
+                    %{<a href="#{a[:seg]}.html##{@ocn_html_identifier}#{a[:ocn]}">#{a[:ocn]}</a>, }
+                  idx[:xhtml][@q]=
+                    idx[:xhtml][@q] +
+                    %{<a href="#{a[:seg]}.xhtml#o#{a[:ocn]}">#{a[:ocn]}</a>, }
                   print a[:ocn] + ', ' if @md.opt.act[:verbose_plus][:set]==:on
                 else p 'error'
                 end
@@ -220,24 +294,48 @@ module SiSU_AO_BookIndex
             if x['node_1_subterms']
              x['node_1_subterms'].sort.each do |k,y|
                 if k !~/node_0_terms/
-                  idx[:sst_rel_html_seg][@o]=idx[:sst_rel_html_seg][@o] + %{#{k}, }
-                  idx[:sst_rel][@t]=idx[:sst_rel][@t] + %{#{k}, }
-                  idx[:html][@q]=idx[:html][@q] + %{\n<p class="book_index_lev2">#{k}, }
+                  idx[:sst_rel_html_seg][@o]=
+                    idx[:sst_rel_html_seg][@o] +
+                    %{#{k}, }
+                  idx[:sst_rel][@t]=
+                    idx[:sst_rel][@t] +
+                    %{#{k}, }
+                  idx[:html][@q]=
+                    idx[:html][@q] +
+                    %{\n<p class="book_index_lev2">#{k}, }
                   c=clean_xml(k.dup)
-                  idx[:xhtml][@r]=idx[:xhtml][@r] + %{\n<p class="book_index_lev2">#{c}, }
+                  idx[:xhtml][@r]=
+                    idx[:xhtml][@r] +
+                    %{\n<p class="book_index_lev2">#{c}, }
                   print "\n\t" + k + ', ' if @md.opt.act[:verbose_plus][:set]==:on
                   y.each do |z|
                     if z[:range]
-                      idx[:sst_rel_html_seg][@o]=idx[:sst_rel_html_seg][@o] + %{#{Mx[:lnk_o]}#{z[:range]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{z[:seg]}.html##{@ocn_html_identifier}#{z[:ocn]}#{Mx[:rel_c]}, }
-                      idx[:sst_rel][@t]=idx[:sst_rel][@t] + %{#{Mx[:lnk_o]}#{z[:range]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{z[:ocn]}#{Mx[:rel_c]}, }
-                      idx[:html][@q]=idx[:html][@q] + %{<a href="#{z[:seg]}.html##{@ocn_html_identifier}#{z[:ocn]}">#{z[:range]}</a>, }
-                      idx[:xhtml][@q]=idx[:xhtml][@q] + %{<a href="#{z[:seg]}.xhtml#o#{z[:ocn]}">#{z[:range]}</a>, }
+                      idx[:sst_rel_html_seg][@o]=
+                        idx[:sst_rel_html_seg][@o] +
+                        %{#{Mx[:lnk_o]}#{z[:range]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{z[:seg]}.html##{@ocn_html_identifier}#{z[:ocn]}#{Mx[:rel_c]}, }
+                      idx[:sst_rel][@t]=
+                        idx[:sst_rel][@t] +
+                        %{#{Mx[:lnk_o]}#{z[:range]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{z[:ocn]}#{Mx[:rel_c]}, }
+                      idx[:html][@q]=
+                        idx[:html][@q] +
+                        %{<a href="#{z[:seg]}.html##{@ocn_html_identifier}#{z[:ocn]}">#{z[:range]}</a>, }
+                      idx[:xhtml][@q]=
+                        idx[:xhtml][@q] +
+                        %{<a href="#{z[:seg]}.xhtml#o#{z[:ocn]}">#{z[:range]}</a>, }
                       print z[:range] + ', ' if @md.opt.act[:verbose_plus][:set]==:on
                     elsif z[:ocn]
-                      idx[:sst_rel_html_seg][@o]=idx[:sst_rel_html_seg][@o] + %{#{Mx[:lnk_o]}#{z[:ocn]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{z[:seg]}.html##{@ocn_html_identifier}#{z[:ocn]}#{Mx[:rel_c]}, }
-                      idx[:sst_rel][@t]=idx[:sst_rel][@t] + %{#{Mx[:lnk_o]}#{z[:ocn]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{z[:ocn]}#{Mx[:rel_c]}, }
-                      idx[:html][@q]=idx[:html][@q] + %{<a href="#{z[:seg]}.html##{@ocn_html_identifier}#{z[:ocn]}">#{z[:ocn]}</a>, }
-                      idx[:xhtml][@q]=idx[:xhtml][@q] + %{<a href="#{z[:seg]}.xhtml#o#{z[:ocn]}">#{z[:ocn]}</a>, }
+                      idx[:sst_rel_html_seg][@o]=
+                        idx[:sst_rel_html_seg][@o] +
+                        %{#{Mx[:lnk_o]}#{z[:ocn]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{z[:seg]}.html##{@ocn_html_identifier}#{z[:ocn]}#{Mx[:rel_c]}, }
+                      idx[:sst_rel][@t]=
+                        idx[:sst_rel][@t] +
+                        %{#{Mx[:lnk_o]}#{z[:ocn]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{z[:ocn]}#{Mx[:rel_c]}, }
+                      idx[:html][@q]=
+                        idx[:html][@q] +
+                        %{<a href="#{z[:seg]}.html##{@ocn_html_identifier}#{z[:ocn]}">#{z[:ocn]}</a>, }
+                      idx[:xhtml][@q]=
+                        idx[:xhtml][@q] +
+                        %{<a href="#{z[:seg]}.xhtml#o#{z[:ocn]}">#{z[:ocn]}</a>, }
                       print z[:ocn] + ', ' if @md.opt.act[:verbose_plus][:set]==:on
                     else p 'error'
                     end
diff --git a/lib/sisu/v6/ao_images.rb b/lib/sisu/v6/ao_images.rb
index 030dbd19..93ed4d84 100644
--- a/lib/sisu/v6/ao_images.rb
+++ b/lib/sisu/v6/ao_images.rb
@@ -85,7 +85,10 @@ module SiSU_AO_Images
       else
         if (@md.opt.act[:verbose_plus][:set]==:on \
         || @md.opt.act[:maintenance][:set]==:on)
-          SiSU_Screen::Ansi.new(@md.opt.act[:color_state][:set],'*WARN* use of RMagick is not enabled in sisurc.yml').warn
+          SiSU_Screen::Ansi.new(
+            @md.opt.act[:color_state][:set],
+            '*WARN* use of RMagick is not enabled in sisurc.yml'
+          ).warn
         end
       end
       data.each do |dob|
@@ -99,7 +102,11 @@ module SiSU_AO_Images
                 img_col=img_row=nil
                 images=imgs.each do |image|
                   dir=SiSU_Env::InfoEnv.new(@md.fns)
-                  path_image=[dir.path.image_source_include_local,dir.path.image_source_include_remote,dir.path.image_source_include]
+                  path_image=[
+                    dir.path.image_source_include_local,
+                    dir.path.image_source_include_remote,
+                    dir.path.image_source_include
+                  ]
                   image_path=nil
                   path_image.each do |img_pth|
                     image_path=img_pth
@@ -112,7 +119,10 @@ module SiSU_AO_Images
                     else
                       if (@md.opt.act[:verbose_plus][:set]==:on \
                       || @md.opt.act[:maintenance][:set]==:on)
-                        SiSU_Screen::Ansi.new(@md.opt.act[:color_state][:set],'*WARN* RMagick not present, will attempt to use imagemagick (identify) directly').warn
+                        SiSU_Screen::Ansi.new(
+                          @md.opt.act[:color_state][:set],
+                          '*WARN* RMagick not present, will attempt to use imagemagick (identify) directly'
+                        ).warn
                       end
                       imgk=SiSU_Env::SystemCall.new.imagemagick
                       gmgk=SiSU_Env::SystemCall.new.graphicksmagick
@@ -144,12 +154,18 @@ module SiSU_AO_Images
                       end
                     end
                     dob.obj=dob.obj.gsub(/(#{image})/,"#{image} #{img_col}x#{img_row}")
-                  else dob.obj=dob.obj.gsub(/#{Mx[:lnk_o]}\s*(\S+)\.(png|jpg|gif).+?#{Mx[:lnk_c]}(#{Mx[:url_o]}\S+?#{Mx[:url_c]}|image)/,'[ \1 (\2 missing) ]')
+                  else
+                    dob.obj=dob.obj.
+                      gsub(/#{Mx[:lnk_o]}\s*(\S+)\.(png|jpg|gif).+?#{Mx[:lnk_c]}(#{Mx[:url_o]}\S+?#{Mx[:url_c]}|image)/,
+                        '[ \1 (\2 missing) ]')
                   end
                 end
               else
                 images=dob.obj.scan(m) do |image|
-                  SiSU_Screen::Ansi.new(@md.opt.act[:color_state][:set],'*WARN* where image dimensions have not been provided RMagick or imagemagick is required',image).warn unless @md.opt.act[:quiet][:set]==:on
+                  SiSU_Screen::Ansi.new(
+                    @md.opt.act[:color_state][:set],
+                    '*WARN* where image dimensions have not been provided RMagick or imagemagick is required',image
+                  ).warn unless @md.opt.act[:quiet][:set]==:on
                 end
               end
             end
diff --git a/lib/sisu/v6/ao_metadata.rb b/lib/sisu/v6/ao_metadata.rb
index 3ca232f3..975d261d 100644
--- a/lib/sisu/v6/ao_metadata.rb
+++ b/lib/sisu/v6/ao_metadata.rb
@@ -69,11 +69,20 @@ module SiSU_AO_Metadata
       @tr=SiSU_Translate::Source.new(md,language)
     end
     def make_para(obj,ocn)
-      h={ obj: obj, ocn: 0 }
+      h={
+        obj: obj,
+        ocn: 0
+      }
       SiSU_AO_DocumentStructure::ObjectPara.new.paragraph(h)
     end
     def make_heading(obj,ocn,name,lv,ln)
-      h={ lv: lv, ln: ln, name: name, obj: obj, ocn: 0 }
+      h={
+        lv: lv,
+        ln: ln,
+        name: name,
+        obj: obj,
+        ocn: 0
+      }
       SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
     end
     def metadata
diff --git a/lib/sisu/v6/ao_misc_arrange.rb b/lib/sisu/v6/ao_misc_arrange.rb
index de32f560..8adebfd5 100644
--- a/lib/sisu/v6/ao_misc_arrange.rb
+++ b/lib/sisu/v6/ao_misc_arrange.rb
@@ -66,11 +66,14 @@ module SiSU_AO_MiscArrangeText
       @md,@data=md,data
     end
     def conditional_headings(para)
-      para=para.gsub(/^(:?A~)\s*$/,'\1~ @title @author').                                    #conditional header
-        gsub(/^((?:[1-9]|:?[A-D])~\S*)\s*$/,'\1~ [Note: heading marker::required title missing]~#')    #conditional header for incorporated document 2004w12
+      para=para.gsub(/^(:?A~)\s*$/,'\1~ @title @author').            #conditional header
+        gsub(/^((?:[1-9]|:?[A-D])~\S*)\s*$/,
+          '\1~ [Note: heading marker::required title missing]~#')    #conditional header for incorporated document 2004w12
       if para =~/^@\S+?:/
-        para=para.gsub(/^@(\S+?):(\s+|$)/,"#{Mx[:meta_o]}\\1#{Mx[:meta_c]}\\2").
-          gsub(/^@(\S+?):([+-])(\s+|$)/,"#{Mx[:meta_o]}\\1\\2#{Mx[:meta_c]}\\3")
+        para=para.gsub(/^@(\S+?):(\s+|$)/,
+            "#{Mx[:meta_o]}\\1#{Mx[:meta_c]}\\2").
+          gsub(/^@(\S+?):([+-])(\s+|$)/,
+            "#{Mx[:meta_o]}\\1\\2#{Mx[:meta_c]}\\3")
       end
       para
     end
@@ -79,7 +82,9 @@ module SiSU_AO_MiscArrangeText
         block_open,block_close,text=nil,nil,nil
         if para =~/\A```[ ]+(?:code(?:\.[a-z][0-9a-z_]+)?|box(?:\.[a-z_]+)?|poem|alt|group|block|table).*?\n.+?\n```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*\Z/m
           @flag=:close
-          block_open,text,block_close=/\A(```[ ]+(?:code(?:\.[a-z][0-9a-z_]+)?|box(?:\.[a-z_]+)?|poem|alt|group|block|table).*?)\n(.+?)\n(```([ ]+[~-][#]|\s+\~\{.+?\}\~)?)\s*\Z/m.match(para)[1..3]
+          block_open,text,block_close=
+            /\A(```[ ]+(?:code(?:\.[a-z][0-9a-z_]+)?|box(?:\.[a-z_]+)?|poem|alt|group|block|table).*?)\n(.+?)\n(```([ ]+[~-][#]|\s+\~\{.+?\}\~)?)\s*\Z/m.
+            match(para)[1..3]
           ((para=~/^```[ ]+table(?:~h)?\s+/) \
           and (para !~/^```[ ]+table(?:~h)?\s+c\d+/)) \
           ? para
@@ -96,7 +101,8 @@ module SiSU_AO_MiscArrangeText
         elsif para =~/\A.+?\n```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*\Z/m \
         and @flag==:open
           @flag=:close
-          text,block_close=/\A(.+?)\n(```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?)\s*\Z/m.match(para)[1,2]
+          text,block_close=
+            /\A(.+?)\n(```(?:\s+[~-][#]|\s+\~\{.+?\}\~)?)\s*\Z/m.match(para)[1,2]
           para=[]
           if not text.to_s.empty?
             para << text.to_s << block_close
@@ -109,7 +115,8 @@ module SiSU_AO_MiscArrangeText
       end
       def ticks_remove(para)
         unless @md.opt.act[:quiet][:set] ==:on
-          SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).mark("ticks not recognized, ticks removed from pargraph\n#{para}")
+          SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).
+           mark("ticks not recognized, ticks removed from pargraph\n#{para}")
         end
         para=para.gsub(/```[ ]+\S+[ ]*/m,'').
           gsub(/```\s*/m,'').
@@ -123,7 +130,12 @@ module SiSU_AO_MiscArrangeText
           para << '`:quote_open`'
           text=text.gsub(/```[ ]+quote/m,'')
         end
-        text=text.gsub(/(?:\n|\A)([^`=\n]+)/m,'_1 \1') #not a perfect match for book index \n={
+        text=if text =~/(?:\n|\A)=\{.+?\}/m                               #exclude book index from indent markup
+          txt,bkidx,tail=/(.+?)((?:\n|\A)=\{.+?\}$)(.*)/m.match(text).captures
+          txt=txt.gsub(/(?:\n|\A)([^`\n]+)/m,'_1 \1')
+          txt + bkidx + tail
+        else text.gsub(/(?:\n|\A)([^`\n]+)/m,'_1 \1')
+        end
         para << text.gsub(/```/m,'')
         if text =~/```/m
           @flag=:quote_close
@@ -134,11 +146,15 @@ module SiSU_AO_MiscArrangeText
       def curly_braces(para)
         block_open,block_close,text=nil,nil,nil
         para=if para =~/\A(?:code(?:\.[a-z][0-9a-z_]+)?|box(?:\.[a-z_]+)?|poem|alt|group|block|table)\{ .+?\n.+?\n\}(?:code|box|poem|alt|group|block|table)(?: [~-][#])?\s*\Z/m
-          block_open,text,block_close=/\A((?:code(?:\.[a-z][0-9a-z_]+)?|box(?:\.[a-z_]+)?|poem|alt|group|block|table)\{ .+?)\n(.+?)\n(\}(?:code|box|poem|alt|group|block|table)(?: [~-][#])?)\s*\Z/m.match(para)[1..3]
+          block_open,text,block_close=
+            /\A((?:code(?:\.[a-z][0-9a-z_]+)?|box(?:\.[a-z_]+)?|poem|alt|group|block|table)\{ .+?)\n(.+?)\n(\}(?:code|box|poem|alt|group|block|table)(?: [~-][#])?)\s*\Z/m.
+            match(para)[1..3]
           para=[]
           para << block_open << text << block_close
         elsif para =~/\A(?:code(?:\.[a-z][0-9a-z_]+)?|box(?:\.[a-z_]+)?|poem|alt|group|block|table)\{ .+?\n.+?\Z/m
-          block_open,text=/\A((?:code(?:\.[a-z][0-9a-z_]+)?|box(?:\.[a-z_]+)?|poem|alt|group|block|table)\{ .+?)\n(.+?)\Z/m.match(para)[1,2]
+          block_open,text=
+            /\A((?:code(?:\.[a-z][0-9a-z_]+)?|box(?:\.[a-z_]+)?|poem|alt|group|block|table)\{ .+?)\n(.+?)\Z/m.
+            match(para)[1,2]
           para=[]
           if not text.to_s.empty?
             para << block_open << text
@@ -146,7 +162,9 @@ module SiSU_AO_MiscArrangeText
             para << block_open
           end
         elsif para =~/\A.+?\n\}(?:code|box|poem|alt|group|block|table)(?: [~-][#])?\s*\Z/m
-          text,block_close=/\A(.+?)\n(\}(?:code|box|poem|alt|group|block|table)(?: [~-][#])?)\s*\Z/m.match(para)[1,2]
+          text,block_close=
+            /\A(.+?)\n(\}(?:code|box|poem|alt|group|block|table)(?: [~-][#])?)\s*\Z/m.
+            match(para)[1,2]
           para=[]
           if not text.to_s.empty?
             para << text.to_s << block_close
diff --git a/lib/sisu/v6/ao_numbering.rb b/lib/sisu/v6/ao_numbering.rb
index 0dbb1a71..d6faf3a6 100644
--- a/lib/sisu/v6/ao_numbering.rb
+++ b/lib/sisu/v6/ao_numbering.rb
@@ -63,10 +63,23 @@
 module SiSU_AO_Numbering
   class Numbering
     attr_accessor :obj,:osp,:ocn,:lv,:name,:index,:comment
+    @@segments_count=0
     def initialize(md,data)
       @md,@data=md,data
       @obj=@type=@ocn=@lv=@name=@index=@comment=nil
     end
+    def number_of_segments?
+      if @@segments_count==0
+        @data.each do |dob|
+          if dob.is ==  :heading \
+          and dob.lv == '1'
+            @@segments_count += 1
+          end
+        end
+        @@segments_count
+      else @@segments_count
+      end
+    end
     def numbering_song
       data=@data
       data=number_plaintext_para(data)
@@ -121,7 +134,8 @@ module SiSU_AO_Numbering
       dob
     end
     def heading_tag_clean(heading_tag)
-      heading_tag=heading_tag.gsub(/[ ]+/,'_').
+      heading_tag=heading_tag.
+        gsub(/[ ]+/,'_').
         gsub(/["']/,'').
         gsub(/[\/]/,'-').
         gsub(/#{Mx[:fa_bold_o]}|#{Mx[:fa_bold_c]}/,'').
@@ -151,7 +165,6 @@ module SiSU_AO_Numbering
       data=data.compact
       data.each do |dob| #@md.seg_names << [additions to segment names]
         title_no=nil
-        dob=SiSU_AO_DocumentStructureExtract::Structure.new(@md,dob).structure_markup #must happen earlier, node info etc. require
         if dob.is ==:heading \
         && dob.autonum_ \
         and defined? @md.make.num_top \
@@ -279,6 +292,33 @@ module SiSU_AO_Numbering
       end
       @tuned_file=@tuned_file.flatten
     end
+    def leading_zeros_fixed_width_number(possible_seg_name)
+      if possible_seg_name =~/^([\d]+?\.|[\d]+)$/m          #!~/[.,:-]+/
+        possible_seg_name=possible_seg_name.
+          gsub(/\.$/,'')
+        nl=possible_seg_name.to_s.length
+        zero='0'
+        zeros_fixed_width=number_of_segments?.to_s.length
+        zero_width=(zeros_fixed_width - nl)
+        zero_width == 0 \
+        ? Mx[:auto_seg_prefix] +
+          possible_seg_name.to_s
+        : Mx[:auto_seg_prefix] +
+          zero*zero_width +
+          possible_seg_name.to_s
+      end
+    end
+    def auto_seg_name(possible_seg_name)
+      if possible_seg_name =~/^([\d]+?\.|[\d]+)$/m          #!~/[.,:-]+/
+        leading_zeros_fixed_width_number(possible_seg_name)
+      elsif possible_seg_name =~/^[\d.,:-]+$/m
+        possible_seg_name=possible_seg_name.
+          gsub(/(?:[:,-]|\W)/,'.').
+          gsub(/\.$/,'')
+        #Mx[:auto_seg_prefix] + possible_seg_name
+      else possible_seg_name
+      end
+    end
     def name_para_seg_filename(data)                                                   #segment naming, remaining
       # paragraph name/numbering rules
       # manual naming overrides, manual naming may be
@@ -313,9 +353,12 @@ module SiSU_AO_Numbering
             @md.set_heading_seg=true
           end
           if dob.name !~/^\S+/ \
-          and dob.obj =~/^\s*(?:\S+\s+)?([\d.,:-]+)/m      #heading starts with a recognised numeric or word followed by a recognised numerical construct, use that as name
+          and dob.obj =~/^\s*(?:\S+\s+)?([\d.,:-]+)/m      #heading starts with a recognised numeric or word followed by a recognised numeric construct, use that as name
             possible_seg_name=$1
-            possible_seg_name=possible_seg_name.gsub(/(?:[:,-]|\W)/,'.').
+            possible_seg_name=
+              auto_seg_name(possible_seg_name)
+            possible_seg_name=possible_seg_name.
+              gsub(/(?:[:,-]|\W)/,'.').
               gsub(/\.$/,'')
             if @md.seg_names.is_a?(Array) \
             and not @md.seg_names.include?(possible_seg_name)
@@ -337,13 +380,13 @@ module SiSU_AO_Numbering
           end
           if dob.ln==4 \
           and not dob.name                                 #if still no segment name, provide a numerical one
-            pf='_'                                         #pg='' #may use e.g. '' or '~' or '_'
-            segn_auto="#{pf}#{art_filename_auto.to_s}"
+            possible_seg_name=
+              auto_seg_name(art_filename_auto)
             if @md.seg_names.is_a?(Array) \
-            and not @md.seg_names.include?(segn_auto)
-             dob.name=segn_auto
+            and not @md.seg_names.include?(possible_seg_name)
+             dob.name=possible_seg_name
              dob.tags=set_tags(dob.tags,dob.name)
-              @md.seg_names << segn_auto
+              @md.seg_names << possible_seg_name
             else puts 'segment name (numbering) error'
             end
             art_filename_auto+=1
@@ -363,11 +406,17 @@ module SiSU_AO_Numbering
           m=dob.ln.to_s
           dob_tmp=[]
           if @md.pagenew.inspect =~/#{m}/
-            dob_tmp << SiSU_AO_DocumentStructure::ObjectLayout.new.break(Hx[:br_page_new]) << dob
+            dob_tmp <<
+              SiSU_AO_DocumentStructure::ObjectLayout.new.break(Hx[:br_page_new]) <<
+              dob
           elsif @md.pagebreak.inspect =~/#{m}/
-            dob_tmp << SiSU_AO_DocumentStructure::ObjectLayout.new.break(Hx[:br_page]) << dob
+            dob_tmp <<
+              SiSU_AO_DocumentStructure::ObjectLayout.new.break(Hx[:br_page]) <<
+              dob
           elsif @md.pageline.inspect =~/#{m}/
-            dob_tmp << SiSU_AO_DocumentStructure::ObjectLayout.new.break(Hx[:br_page_line]) << dob
+            dob_tmp <<
+              SiSU_AO_DocumentStructure::ObjectLayout.new.break(Hx[:br_page_line]) <<
+              dob
           end
           unless dob_tmp.length > 0; dob
           else                       dob_tmp
@@ -381,11 +430,23 @@ module SiSU_AO_Numbering
           : @segname
           tags["#{dob.ocn}"]={ segname: @segname }
           ocn_html_seg[dob.ocn]=if (dob.is==:heading || dob.is==:heading_insert)
-            if dob.ln =~/[0-3]/ then { seg: nil, level: dob.ln }
+            if dob.ln =~/[0-3]/
+              {
+                seg: nil,
+                level: dob.ln,
+              }
             #elsif dob.ln =~/[4-6]/
-            else                     { seg: @seg, level: dob.ln }
+            else
+              {
+                seg: @seg,
+                level: dob.ln,
+              }
             end
-          else                       { seg: @seg, level: nil }
+          else
+            {
+              seg: @seg,
+              level: nil,
+            }
           end
         end
         dob.tags=dob.tags.uniq if defined? dob.tags
@@ -434,7 +495,9 @@ module SiSU_AO_Numbering
               and defined? @md.title.full \
               and defined? @md.creator \
               and @md.creator
-                head=@md.title.main ? ([@lv='1',@obj=@md.title.main]) : ([@lv='1',@obj='[no title provided]'])
+                head=@md.title.main \
+                ? ([@lv='1',@obj=@md.title.main])
+                : ([@lv='1',@obj='[no title provided]'])
                 @tuned_file << head
               end
             end
@@ -479,7 +542,8 @@ module SiSU_AO_Numbering
           unless @md.set_header_title
             if t_o !~/^%{1,2}\s/m \
             and t_o !~/\A\s*\Z/m
-              @tuned_file << "#{Mx[:meta_o]}title#{Mx[:meta_c]} #{@md.heading_seg_first}"
+              @tuned_file <<
+                "#{Mx[:meta_o]}title#{Mx[:meta_c]} #{@md.heading_seg_first}"
               @md.title.main=@md.heading_seg_first
               @md.set_header_title=true
             end
diff --git a/lib/sisu/v6/ao_syntax.rb b/lib/sisu/v6/ao_syntax.rb
index 68720aca..cdd4a389 100644
--- a/lib/sisu/v6/ao_syntax.rb
+++ b/lib/sisu/v6/ao_syntax.rb
@@ -143,7 +143,8 @@ module SiSU_AO_Syntax
       && dob.is !=:comment \
       && dob.is !=:code \
       && dob.is !=:table
-        dob.obj=dob.obj.gsub(/^-\\\\-\s*$/,"#{Mx[:br_page]}").
+        dob.obj=dob.obj.
+          gsub(/^-\\\\-\s*$/,"#{Mx[:br_page]}").
           gsub(/^=\\\\=\s*$/,"#{Mx[:br_page_new]}").
           gsub(/ \\\\(?: |$)/,"#{Mx[:br_line]}").
           gsub(/(?:<:?pb>)/,"#{Mx[:br_page]}").                         # depreciated
@@ -190,7 +191,8 @@ module SiSU_AO_Syntax
       dob
     end
     def embolden(given)
-      given=given.gsub(/^!_\s+((?:\{|#{Mx[:lnk_o]})(?:~^ )?.+?(?:\}|#{Mx[:lnk_o]})https?:\/\/\S+.*?)([#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:br_nl]}])/,
+      given=given.
+        gsub(/^!_\s+((?:\{|#{Mx[:lnk_o]})(?:~^ )?.+?(?:\}|#{Mx[:lnk_o]})https?:\/\/\S+.*?)([#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:br_nl]}])/,
           "#{Mx[:fa_bold_o]} \\1 #{Mx[:fa_bold_c]}\\2").
         gsub(/^!_\s+((?:\{|#{Mx[:lnk_o]})(?:~^ )?.+?(?:\}|#{Mx[:lnk_o]})https?:\/\/\S+.*)/,
           "#{Mx[:fa_bold_o]} \\1 #{Mx[:fa_bold_c]}").
@@ -204,7 +206,8 @@ module SiSU_AO_Syntax
           "#{Mx[:fa_bold_o]}\\1#{Mx[:fa_bold_c]}")
     end
     def italicise(given)
-      given=given.gsub(/^\/_\s*(.+?)([#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:br_nl]}])/,
+      given=given.
+        gsub(/^\/_\s*(.+?)([#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:br_nl]}])/,
           "#{Mx[:fa_italics_o]}\\1#{Mx[:fa_italics_c]}\\2").
         gsub(/^\/_\s*(.+?)\s+((?:[*]~\S+\s*)+)/,
           "#{Mx[:fa_italics_o]}\\1#{Mx[:fa_italics_c]}\\2").
@@ -282,11 +285,13 @@ module SiSU_AO_Syntax
           word.each do |w|
             unless /#{@manmkp_bold}|#{@http_m}/.match(w)
               if defined? @md.bold_match_list[:regx] \
-              and @md.bold_match_list[:regx]                                                   #document header: @bold: [bold word list]
-                w=w.gsub(@md.bold_match_list[:regx],"#{Mx[:fa_bold_o]}\\1#{Mx[:fa_bold_c]}")
+              and @md.bold_match_list[:regx]                                             #document header: @bold: [bold word list]
+                w=w.gsub(@md.bold_match_list[:regx],
+                  "#{Mx[:fa_bold_o]}\\1#{Mx[:fa_bold_c]}")
               elsif defined? @vz.markup_make_bold \
               and @vz.markup_make_bold                                                   #defaults adjusted bold word list
-                w=w.gsub(@vz.markup_make_bold,"#{Mx[:fa_bold_o]}\\1#{Mx[:fa_bold_c]}")
+                w=w.gsub(@vz.markup_make_bold,
+                  "#{Mx[:fa_bold_o]}\\1#{Mx[:fa_bold_c]}")
               end
             else
               w=if w =~ /(?:^!_|^#{Mx[:lv_o]}[7-9]:\S*?#{Mx[:lv_c]})\s+/
@@ -324,7 +329,9 @@ module SiSU_AO_Syntax
             else ''
             end
             txt="#{lead_break}#{fce}\{" + txt.split(Mx[:br_nl]).join("\}#{fce}#{Mx[:br_nl]}#{fce}\{") + "\}#{fce}"
-            dob.obj=dob.obj.sub(/(?:^|#{Mx[:gl_c]}|\s+|['"]|[#{Mx[:nbsp]}#{Mx[:fa_o_c]}#{Mx[:fa_c]}#{Mx[:lnk_o]}#{Mx[:br_nl]}#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:tc_c]}#{Mx[:tc_p]}]|[\(\[\{]|\>)([*!\/_#])\{.+?\}\1/m,"#{lead}#{txt}")
+            dob.obj=dob.obj.
+              sub(/(?:^|#{Mx[:gl_c]}|\s+|['"]|[#{Mx[:nbsp]}#{Mx[:fa_o_c]}#{Mx[:fa_c]}#{Mx[:lnk_o]}#{Mx[:br_nl]}#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:tc_c]}#{Mx[:tc_p]}]|[\(\[\{]|\>)([*!\/_#])\{.+?\}\1/m,
+                "#{lead}#{txt}")
             dob
           else dob
           end
@@ -336,7 +343,8 @@ module SiSU_AO_Syntax
     def fontface(dob)
       leader=/^|#{Mx[:gl_c]}|\s+|['"]|[#{Mx[:nbsp]}#{Mx[:fa_o_c]}#{Mx[:fa_c]}#{Mx[:lnk_o]}#{Mx[:br_nl]}#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:tc_c]}#{Mx[:tc_p]}]|[\(\[\{]|[、。「‹«¿¡]|\>/
       dob=fontface_lines(dob,leader)
-      dob.obj=dob.obj.gsub(/(#{leader})\*\{(.+?)\}\*/m,
+      dob.obj=dob.obj.
+        gsub(/(#{leader})\*\{(.+?)\}\*/m,
           "\\1#{@emph[:o]}\\2#{@emph[:c]}").                                                                                                                             #emphasis
         gsub(/(#{leader})!\{(.+?)\}!/m,
           "\\1#{Mx[:fa_bold_o]}\\2#{Mx[:fa_bold_c]}").                                                                                                                   #bold
@@ -399,18 +407,20 @@ module SiSU_AO_Syntax
         word=dob.obj.scan(/\S+|\n/) #unless line =~/^(?:#{Mx[:meta_o]}|%+\s)/ #visit
         if word
           word.each do |w| # _ - / # | : ! ^ ~
-            unless w =~/~\{|\}~|~\[|\]~|^\^~|~\^|\*~\S+|~#|\{t?~|\{table|https?:\/\/\S+/             # do something earlier about table!!
-              w=w.gsub(/\\?~/,"#{Mx[:gl_o]}#126#{Mx[:gl_c]}")                                       #escaped special character
+            unless w =~/~\{|\}~|~\[|\]~|^\^~|~\^|\*~\S+|~#|\{t?~|\{table|https?:\/\/\S+/           # do something earlier about table!!
+              w=w.gsub(/\\?~/,"#{Mx[:gl_o]}#126#{Mx[:gl_c]}")                                      #escaped special character
             end
-            w=w.gsub(/^\<$/,"#{Mx[:gl_o]}#lt#{Mx[:gl_c]}").gsub(/^\>$/,"#{Mx[:gl_o]}#gt#{Mx[:gl_c]}")                                          #escaped special character
+            w=w.gsub(/^\<$/,
+              "#{Mx[:gl_o]}#lt#{Mx[:gl_c]}").gsub(/^\>$/,"#{Mx[:gl_o]}#gt#{Mx[:gl_c]}")            #escaped special character
             line_array << w
           end
           dob.obj=line_array.join(' ')
           dob.obj=dob.obj.strip
         end
-        dob.obj=dob.obj.gsub(/^([*#-.]{1,12})$/,'\1 ~#').                                                #ocn off for these paragraph separators
+        dob.obj=dob.obj.
+          gsub(/^([*#-.]{1,12})$/,'\1 ~#').                                                        #ocn off for these paragraph separators
           gsub(/~\{(.+?)\}~/m,Mx[:en_a_o] + '\1' + Mx[:en_a_c]).
-          gsub(/~\[([^*+].+?)\]~/m,Mx[:en_b_o] + '* \1' + Mx[:en_b_c]).                    #default if markup does not specify
+          gsub(/~\[([^*+].+?)\]~/m,Mx[:en_b_o] + '* \1' + Mx[:en_b_c]).                            #default if markup does not specify
           gsub(/~\[(.+?)\]~/m,Mx[:en_b_o] + '\1' + Mx[:en_b_c])
         if dob.is ==:heading \
         and dob.ln ==0
@@ -431,12 +441,14 @@ module SiSU_AO_Syntax
             dob.obj=if dob.lv =~/[23]/ \
             and defined? @md.creator.author \
             and @md.creator.author
-              dob.obj.gsub(/^\s*(?:(by\s+)?(?:@creator|@author))\s*$/,"\\1#{@md.creator.author}")
+              dob.obj.
+                gsub(/^\s*(?:(by\s+)?(?:@creator|@author))\s*$/,
+                  "\\1#{@md.creator.author}")
             else dob.obj.gsub(/^\s*(?:(by\s+)?(?:@creator|@author))\s*$/,'\1')
             end
           end
         end
-        dob.obj=dob.obj.gsub(/<(https?:\/\/\S+?)>/,'< \1 >').                                   #catch problem markup
+        dob.obj=dob.obj.gsub(/<(https?:\/\/\S+?)>/,'< \1 >').                     #catch problem markup
           gsub(/<:=(\S+?)>/,'{ c_\1.png 14x14 }image').
           gsub(/<!(\S+)!>/,'<:\1>').                                              #escaped special character
           gsub(/&nbsp;/,"#{Mx[:nbsp]}").                                          #escaped special character
@@ -463,15 +475,18 @@ module SiSU_AO_Syntax
           gsub(/\\\!/,"#{Mx[:gl_o]}#033#{Mx[:gl_c]}")                             #escaped special character
         if dob.obj=~/(?:https?:|ftp:|\{([^{}]+?)\}(?:#|:|[.]{1,2}\/))\S+/m
           if dob.obj=~/(?:^|[#{Mx[:gl_c]}#{Mx[:nbsp]} ])\{~\^ (?:.+?)\s*\}(?:(?:https?:|ftp:|:|[.]{1,2}\/)\S+?)\s*#{Mx[:en_a_o]}(.+?)#{Mx[:en_a_c]}/m
-            dob.obj=dob.obj.gsub(/(^|[#{Mx[:gl_c]}#{Mx[:nbsp]} ])\{~\^ ([^}]+?)\s*\}((?:https?:|ftp:|:|[.]{1,2}\/)\S+?)\s*#{Mx[:en_a_o]}(.+?)#{Mx[:en_a_c]}/m,
-              "\\1#{Mx[:lnk_o]}\\2#{Mx[:lnk_c]}\\3 #{Mx[:en_a_o]}\\3 \\4#{Mx[:en_a_c]}") # watch
+            dob.obj=dob.obj.
+              gsub(/(^|[#{Mx[:gl_c]}#{Mx[:nbsp]} ])\{~\^ ([^}]+?)\s*\}((?:https?:|ftp:|:|[.]{1,2}\/)\S+?)\s*#{Mx[:en_a_o]}(.+?)#{Mx[:en_a_c]}/m,
+                "\\1#{Mx[:lnk_o]}\\2#{Mx[:lnk_c]}\\3 #{Mx[:en_a_o]}\\3 \\4#{Mx[:en_a_c]}") # watch
           end
           if dob.obj=~/(?:^|[#{Mx[:gl_c]}#{Mx[:nbsp]} ])\{~\^ (?:.+?)\s*\}(?:(?:https?:|ftp:|:|[.]{1,2}\/)\S+?)([;,.]?)(?=\s|[#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:br_nl]}]|$)/m
-            dob.obj=dob.obj.gsub(/(^|[#{Mx[:gl_c]}#{Mx[:nbsp]} ])\{~\^ (.+?)\s*\}((?:https?:|ftp:|:|[.]{1,2}\/)\S+?)([;,.]?)(?=\s|[#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:br_nl]}]|$)/m,
-              "\\1#{Mx[:lnk_o]}\\2#{Mx[:lnk_c]}\\3\\4 #{Mx[:en_a_o]}\\3#{Mx[:en_a_c]} ")
+            dob.obj=dob.obj.
+              gsub(/(^|[#{Mx[:gl_c]}#{Mx[:nbsp]} ])\{~\^ (.+?)\s*\}((?:https?:|ftp:|:|[.]{1,2}\/)\S+?)([;,.]?)(?=\s|[#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:br_nl]}]|$)/m,
+                "\\1#{Mx[:lnk_o]}\\2#{Mx[:lnk_c]}\\3\\4 #{Mx[:en_a_o]}\\3#{Mx[:en_a_c]} ")
           end
-          dob.obj=dob.obj.gsub(/(^|[^#])\{\s*([^{}]+?)\s*\}((?:https?:|:|[.]{2}\/|#)\S+?)(?=\s|[#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:br_nl]}#{Mx[:en_a_o]}#{Mx[:en_b_o]}]|$)/,
-              "\\1#{Mx[:lnk_o]}\\2#{Mx[:lnk_c]}\\3").                                                                                                                    #linked (text or image, however text cannot include modified face, e.g. bold, ital, underline)
+          dob.obj=dob.obj.
+              gsub(/(^|[^#])\{\s*([^{}]+?)\s*\}((?:https?:|:|[.]{2}\/|#)\S+?)(?=\s|[#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:br_nl]}#{Mx[:en_a_o]}#{Mx[:en_b_o]}]|$)/,
+                "\\1#{Mx[:lnk_o]}\\2#{Mx[:lnk_c]}\\3").                                                                                                                    #linked (text or image, however text cannot include modified face, e.g. bold, ital, underline)
             gsub(/(^|[#{Mx[:gl_c]}#{Mx[:lnk_c]}#{Mx[:en_a_o]}#{Mx[:en_b_o]}(\s])((?:https?|ftp):\/\/\S+?\.[^>< ]+?)([,.;'"]?)(?=[\s#{Mx[:en_a_c]}#{Mx[:en_b_c]}#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:br_nl]}]|$)/m,
               %{\\1#{Mx[:url_o]}\\2#{Mx[:url_c]}\\3}).
             gsub(/#{Mx[:lnk_c]}#(\S+?[^>< ]+?)([()\[\]]*[,.;:!?'"]{0,2})(?=[\s#{Mx[:en_a_c]}#{Mx[:en_b_c]}#{Mx[:br_line]}#{Mx[:br_paragraph]}#{Mx[:br_nl]}]|$)/m,
@@ -486,7 +501,8 @@ module SiSU_AO_Syntax
             %{\\1#{Mx[:url_o]}\\2#{Mx[:url_c]}\\3})
         end
         dob=fontface(dob)
-        dob.obj=dob.obj.gsub(/<[:e]\s+(.+?)!?>/,
+        dob.obj=dob.obj.
+          gsub(/<[:e]\s+(.+?)!?>/,
             "#{Mx[:en_a_o]}\\1#{Mx[:en_a_c]}").                                                                                                                             #not tested
           gsub(/(^|#{Mx[:br_nl]})\s*_\*\s*/,
             "\\1#{Mx[:gl_bullet]}").                                                                                                                                        #bullets, shortcut
@@ -526,7 +542,8 @@ module SiSU_AO_Syntax
       elsif dob.is==:table
         dob=fontface(dob)
       elsif dob.is ==:code
-        dob.obj=dob.obj.gsub(/#{Mx[:meta_o]}(\S+?)#{Mx[:meta_c]}\s*/,'@\1: ').
+        dob.obj=dob.obj.
+          gsub(/#{Mx[:meta_o]}(\S+?)#{Mx[:meta_c]}\s*/,'@\1: ').
           gsub(/(^|#{Mx[:gl_c]}|\s)&lt;(br(?: \/)?)&gt;([\s,.]|$)/,'\1<\2>\3') #convert <br> <br /> back, clumsy
         if dob.number_
           codeline=[]
@@ -569,7 +586,8 @@ module SiSU_AO_Syntax
       # +2                  <!i2!>
       puts 'tech'
       @data.each do |line|
-        line=line.gsub(/(^|\s+|['"]|#{Mx[:fa_o_c]}|#{Mx[:fa_c]}|[\(\[]|\>)e\{(.+?)\}e/,
+        line=line.
+          gsub(/(^|\s+|['"]|#{Mx[:fa_o_c]}|#{Mx[:fa_c]}|[\(\[]|\>)e\{(.+?)\}e/,
             "\\1#{@emph[:o]}\\2#{@emph[:c]}").                                                        #emphasis
           gsub(/(^|\s+|['"]|#{Mx[:fa_o_c]}|#{Mx[:fa_c]}|[\(\[]|\>)b\{(.+?)\}b/,
             "\\1#{Mx[:fa_bold_o]}\\2#{Mx[:fa_bold_c]}").                                              #bold
diff --git a/lib/sisu/v6/constants.rb b/lib/sisu/v6/constants.rb
index 43fff554..d25478d1 100644
--- a/lib/sisu/v6/constants.rb
+++ b/lib/sisu/v6/constants.rb
@@ -104,6 +104,7 @@ Xx={
   html_relative1:            '※',
 }
 Mx={
+  auto_seg_prefix:           's',
   ocn_id_char:               'o',
   note:                      'note_',
   note_ref:                  'noteref_',
@@ -333,6 +334,7 @@ DISABLE={
 }
 DEVELOPER={
   maintenance:               :false,
+  under_construction:        '_CONSTRUCTION_ZONE',
 }
 __END__
 utils.rb
diff --git a/lib/sisu/v6/concordance.rb b/lib/sisu/v6/html_concordance.rb
index 5422056f..b94949b9 100644
--- a/lib/sisu/v6/concordance.rb
+++ b/lib/sisu/v6/html_concordance.rb
@@ -51,7 +51,7 @@
 
  * Git
    <http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=summary>
-   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v6/concordance.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v6/html_concordance.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
diff --git a/lib/sisu/v6/hub.rb b/lib/sisu/v6/hub.rb
index 736fa8bc..94d0eb8e 100644
--- a/lib/sisu/v6/hub.rb
+++ b/lib/sisu/v6/hub.rb
@@ -75,7 +75,8 @@ module SiSU
   begin
     require 'uri'
   rescue LoadError
-    SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).error('uri NOT FOUND (LoadError)')
+    SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).
+      error('uri NOT FOUND (LoadError)')
   end
   class HubMaster
     def initialize(argv)
@@ -159,7 +160,11 @@ module SiSU
         end
       end
       if files_translated_idx.flatten.length > 1
-      SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'Manifest re-run on (currently generated) translated files',"").grey_title_hi unless @opt.act[:quiet][:set] ==:on
+        SiSU_Screen::Ansi.new(
+          @opt.act[:color_state][:set],
+          'Manifest re-run on (currently generated) translated files',
+          ''
+        ).grey_title_hi unless @opt.act[:quiet][:set] ==:on
         files_translated_idx.flatten.each do |i|
           @opt.fns=@opt.files[i]
           @opt.f_pth=@opt.f_pths[i]
@@ -191,22 +196,26 @@ module SiSU
       @@n_do=0
     end
     def remote_put_base_site_rsync                         # -CR
-      SiSU_Utils::CodeMarker.new(__LINE__,__FILE__).mark(:cyan) if @opt.act[:maintenance][:set] ==:on
+      SiSU_Utils::CodeMarker.new(__LINE__,__FILE__).mark(:cyan) \
+        if @opt.act[:maintenance][:set] ==:on
       require_relative 'remote'                        # remote.rb
       SiSU_Remote::Put.new(@opt).rsync_base
     end
     def remote_put_base_site_rsync_match                   # -CCRZ
-      SiSU_Utils::CodeMarker.new(__LINE__,__FILE__).mark(:cyan) if @opt.act[:maintenance][:set] ==:on
+      SiSU_Utils::CodeMarker.new(__LINE__,__FILE__).mark(:cyan) \
+        if @opt.act[:maintenance][:set] ==:on
       require_relative 'remote'                        # remote.rb
       SiSU_Remote::Put.new(@opt).rsync_base_sync
     end
     def remote_put_base_site                               # -Cr
-      SiSU_Utils::CodeMarker.new(__LINE__,__FILE__).mark(:cyan) if @opt.act[:maintenance][:set] ==:on
+      SiSU_Utils::CodeMarker.new(__LINE__,__FILE__).mark(:cyan) \
+        if @opt.act[:maintenance][:set] ==:on
       require_relative 'remote'                        # remote.rb
       SiSU_Remote::Put.new(@opt).scp_base
     end
     def remote_put_base_site_all                           # -CCr
-      SiSU_Utils::CodeMarker.new(__LINE__,__FILE__).mark(:cyan) if @opt.act[:maintenance][:set] ==:on
+      SiSU_Utils::CodeMarker.new(__LINE__,__FILE__).mark(:cyan) \
+        if @opt.act[:maintenance][:set] ==:on
       require_relative 'remote'                        # remote.rb
       SiSU_Remote::Put.new(@opt).scp_base_all
     end
@@ -217,7 +226,10 @@ module SiSU
     def termsheet                                          # -t
       system("sisu_termsheet #{@opt.cmd} #{@opt.fns}\n")
       @@n_do=@@n_do+1
-      SiSU_Screen::Ansi.new(@opt.cmd,@@n_do,'Termsheet(s) processed').term_sheet_title unless @opt.act[:quiet][:set] ==:on
+      SiSU_Screen::Ansi.new(
+        @opt.cmd,@@n_do,
+        'Termsheet(s) processed'
+      ).term_sheet_title unless @opt.act[:quiet][:set] ==:on
     end
     def webrick                                            # -W
       prt=SiSU_Env::InfoEnv.new(@fns).port.webrick_port
@@ -254,7 +266,8 @@ module SiSU
       require 'fileutils'
         include FileUtils
     rescue LoadError
-      SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).error('fileutils NOT FOUND (LoadError)')
+      SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).
+        error('fileutils NOT FOUND (LoadError)')
     end
     @@env=nil
     attr_accessor :op
@@ -262,7 +275,9 @@ module SiSU
       @opt=opt
       @@env=@env=SiSU_Env::InfoEnv.new
       @msg,@msgs='',nil
-      @tell=lambda { SiSU_Screen::Ansi.new(@opt.cmd,@msg,"#{@msgs.inspect if @msgs}") }
+      @tell=lambda {
+        SiSU_Screen::Ansi.new(@opt.cmd,@msg,"#{@msgs.inspect if @msgs}")
+      }
     end
     def remove_skipped_files_if_any_from_processing_files_array
       if @remove_faulty_markup_files_array.length > 0
@@ -272,7 +287,8 @@ module SiSU
     def print_error_message_if_files_skipped
       if @remove_faulty_markup_files_array.length > 0
         puts '---'
-        STDERR.puts 'ERROR with file(s), did not process: ' + @remove_faulty_markup_files_array.join(',')
+        STDERR.puts 'ERROR with file(s), did not process: ' +
+          @remove_faulty_markup_files_array.join(',')
       end
     end
     def do_loops
@@ -288,7 +304,8 @@ module SiSU
     def do_each_file_loop_options
       @opt.files.each_with_index do |fno,i|
         @opt.fno=fno
-        @opt.fns=fno.gsub(/(?:https?|file):\/\/\S+\/(\S+)\.sst$/,'\1.-sst').
+        @opt.fns=fno.
+          gsub(/(?:https?|file):\/\/\S+\/(\S+)\.sst$/,'\1.-sst').
           gsub(/\.ssm$/,'.ssm.sst')
         @opt.f_pth=@opt.f_pths[i]
         if @opt.fns !~/\.-sst$/
@@ -307,7 +324,7 @@ module SiSU
           $process_document = :ok
           unless @opt.act[:po4a][:set]==:on            # --po4a, -P
             if @opt.fno =~ /\.ssm$/
-              require_relative 'composite'             # composite.rb #pre-processing
+              require_relative 'ao_composite'          # ao_composite.rb #pre-processing
               SiSU_Assemble::Composite.new(@opt).read
             end
             require_relative 'ao'                      # -m     ao.rb
@@ -357,7 +374,7 @@ module SiSU
             end
           end
           if @opt.act[:concordance][:set]==:on           #% --concordance, -w
-            require_relative 'concordance'               #  concordance.rb
+            require_relative 'html_concordance'          #  html_concordance.rb
             SiSU_Concordance::Source.new(@opt).read
           end
           if @opt.act[:epub][:set]==:on                  #% --epub, -e
@@ -492,7 +509,8 @@ module SiSU
         ensure
           path_pod=@env.processing_path.processing_sisupod(@opt).paths
           unless @opt.act[:maintenance][:set]==:on
-            FileUtils::rm_rf("#{path_pod[:sisupod]}/*") if FileTest.directory?(path_pod[:sisupod])
+            FileUtils::rm_rf("#{path_pod[:sisupod]}/*") \
+              if FileTest.directory?(path_pod[:sisupod])
           end
         end
       end
@@ -518,7 +536,7 @@ module SiSU
             case @opt.fns
             when /\.(termsheet.rb)$/
               SiSU::Operations.new(@opt).termsheet
-            else                                 #print "not processed --> ", fns, "\n"
+            else                                       #print "not processed --> ", fns, "\n"
             end
           else SiSU::Operations.new(@opt).not_found
           end
@@ -528,13 +546,13 @@ module SiSU
       if @opt.act[:psql][:set]==:on                    #% --pg, -D DB postgresql
         require_relative 'dbi'
         OptionLoopFiles.new(@opt).loop_files_on_given_option do
-          SiSU_DBI::SQL.new(@opt).connect            # -D -d  dbi.rb
+          SiSU_DBI::SQL.new(@opt).connect              # -D -d  dbi.rb
         end
       end
       if @opt.act[:sqlite][:set]==:on                  #% --sqlite, -d DB sqlite
         require_relative 'dbi'
         OptionLoopFiles.new(@opt).loop_files_on_given_option do
-          SiSU_DBI::SQL.new(@opt).connect            # -D -d  dbi.rb
+          SiSU_DBI::SQL.new(@opt).connect              # -D -d  dbi.rb
         end
       end
       if @opt.act[:manifest][:set]==:on                #% --manifest, -y
@@ -579,7 +597,10 @@ module SiSU
         if (@opt.act[:verbose][:set]==:on \
         || @opt.act[:verbose_plus][:set]==:on \
         || @opt.act[:maintenance][:set]==:on)
-          SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],' ' + File.dirname(__FILE__)).grey
+          SiSU_Screen::Ansi.new(
+            @opt.act[:color_state][:set],
+            ' ' + File.dirname(__FILE__)
+          ).grey
         end
       end
       if @opt.act[:ao][:set]==:on \
@@ -676,7 +697,8 @@ module SiSU
         begin
           require 'profile'
         rescue LoadError
-          SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).error('profile NOT FOUND (LoadError)')
+          SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).
+            error('profile NOT FOUND (LoadError)')
         end
       end
       action_on_file_ =if @opt.act[:rsync][:set]==:on \
diff --git a/lib/sisu/v6/options.rb b/lib/sisu/v6/options.rb
index d7719ea4..e181ee8e 100644
--- a/lib/sisu/v6/options.rb
+++ b/lib/sisu/v6/options.rb
@@ -72,7 +72,22 @@ module SiSU_Commandline
   @@sisu_call_origin_path=nil
   class HeaderCommon
     def sisu_document_make_instructions
-      @pagenew=@pagebreak=@pageline=@toc=@lv1=@lv2=@lv3=@lv4=@lv5=@lv6=@num_top=@i18n=@man_section=@emphasis_set_to=@bold_match_list=@italics_match_list=@substitution_match_list=@footer_links=@home_button_links=@links=nil
+      @pagenew=
+        @pagebreak=
+        @pageline=
+        @toc=
+        @lv1=@lv2=@lv3=@lv4=@lv5=@lv6=
+        @num_top=
+        @i18n=
+        @man_section=
+        @emphasis_set_to=
+        @bold_match_list=
+        @italics_match_list=
+        @substitution_match_list=
+        @footer_links=
+        @home_button_links=
+        @links=
+        nil
       make_instruct_array=SiSU_Env::GetInit.new.sisu_document_make.makefile_read
       @makeset=false
       if make_instruct_array
@@ -143,7 +158,8 @@ module SiSU_Commandline
     attr_accessor :cmd,:mod,:act,:dir_structure_by,:lingual,:f_pths,:files,:files_mod,:base_path,:base_stub,:sub_location,:paths,:lngs,:f_pth,:pth,:fno,:fns,:fnb,:fnc,:fng,:fncb,:lng,:lng_base,:what,:make_instructions,:make_instructions_pod
     @@act=nil
     def initialize(a)
-      @cmd,@f_pth,@pth,@fno,@fns,@fnb,@fnc,@fng,@fncb,@what,@lng,@lng_base,@base_path,@base_stub,@sub_location='','','','','','','','','','','','','',''
+      @cmd,@f_pth,@pth,@fno,@fns,@fnb,@fnc,@fng,@fncb,@what,@lng,@lng_base,@base_path,@base_stub,@sub_location=
+       '', '',    '',  '',  '',  '',  '',  '',  '',   '',   '',  '',       '',        '',        ''
       @f_pths,@files,@files_mod,@paths,@mod,@act=Array.new(5){[]}
       @env=SiSU_Env::InfoEnv.new
       @lng_base=@env.language_default_set
@@ -316,7 +332,8 @@ module SiSU_Commandline
             FileUtils::mkdir_p(pt.to_s)
             pod_make_path=fullname + '/sisupod/doc/_sisu'
             make_instruct_array=sisu_document_make_pod.makefile_read(pod_make_path)
-            @make_instructions_pod=HeaderCommon.new(make_instruct_array).sisu_document_make_instructions
+            @make_instructions_pod=
+              HeaderCommon.new(make_instruct_array).sisu_document_make_instructions
             Dir.chdir(pt.realpath)
             system("
               chdir #{fullname}
@@ -410,7 +427,7 @@ module SiSU_Commandline
               lng: lng_is,
               lng_is: lng_is,
               url_base: nil,
-              url: nil
+              url: nil,
             }
           else  puts "file not found: #{x}"
           end
@@ -422,7 +439,16 @@ module SiSU_Commandline
           puts "#{x} in #{a.join(' ')}?"
         end
       end
-      { cmd: c, mod: m, what: w, paths: pth, files: f, f_pths: f_pths, lng: lng_is, lngs: lngs }
+      {
+        cmd: c,
+        mod: m,
+        what: w,
+        paths: pth,
+        files: f,
+        f_pths: f_pths,
+        lng: lng_is,
+        lngs: lngs,
+      }
     end
     def expand_numeric_shortcuts(a)
       shortcut=SiSU_Env::InfoProcessingFlag.new
diff --git a/lib/sisu/v6/param.rb b/lib/sisu/v6/param.rb
index 19769027..bacee802 100644
--- a/lib/sisu/v6/param.rb
+++ b/lib/sisu/v6/param.rb
@@ -65,15 +65,34 @@ module SiSU_Param
     require 'uri'
     require 'pstore'
   rescue LoadError
-    SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).error('uri or pstore NOT FOUND (LoadError)')
+    SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).
+      error('uri or pstore NOT FOUND (LoadError)')
   end
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env
   require_relative 'param_make'                         # param_make.rb
   require_relative 'param_identify_markup'              # param_identify_markup.rb
   @@date=SiSU_Env::InfoDate.new
-  @@proc=@@filename_txt=@@filename_texinfo=@@filename_lout_portrait=@@filename_lout_landscape=@@filename_html_scroll=@@filename_html_index=@@filename_html_segtoc=@@filename_semantic=@@filename_rss=@@newfile=@@drr=nil
-  @doc={ initialise: nil, markup: '', lnks: '', stmp: '', req: {} }
+  @@proc=
+    @@filename_txt=
+    @@filename_texinfo=
+    @@filename_lout_portrait=
+    @@filename_lout_landscape=
+    @@filename_html_scroll=
+    @@filename_html_index=
+    @@filename_html_segtoc=
+    @@filename_semantic=
+    @@filename_rss=
+    @@newfile=
+    @@drr=
+    nil
+  @doc={
+    initialise: nil,
+    markup: '',
+    lnks: '',
+    stmp: '',
+    req: {},
+  }
   @@yaml=@@yamladdr=nil
   @@trigger=nil
   @@lv,@@flag={},{}
@@ -99,7 +118,8 @@ module SiSU_Param
         # you may need to change Dir.pwd to @opt.f_pth[:pth] where the latter
         # has a path value that is different, however, f_pth is not always set!
         Dir.chdir(@opt.f_pth[:pth])
-        SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).error('-- bug alert --')
+        SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).
+          error('-- bug alert --')
         p 'f_pth ' + @opt.f_pth[:pth]
         p 'pwd   ' + Dir.pwd
       end
@@ -186,7 +206,11 @@ module SiSU_Param
           STDERR.puts "#{n} is #{s.class}: programming error, String expected #{__FILE__}:#{__LINE__}"
           s
         else
-          SiSU_Screen::Ansi.new('v',"*WARN* #{n} length #{s.length} exceeds set db field length #{l}, metadata dropped",@opt.fns).warn unless @opt.act[:quiet][:set]==:on
+          SiSU_Screen::Ansi.new(
+            'v',
+            "*WARN* #{n} length #{s.length} exceeds set db field length #{l}, metadata dropped",
+            @opt.fns
+          ).warn unless @opt.act[:quiet][:set]==:on
           nil
         end
       end
@@ -504,7 +528,10 @@ module SiSU_Param
             elsif @h['text']     then @h['text']
             elsif @h['main']     then @h['main']
             else
-              SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'WARNING Document Copyright missing; provide @rights: :copyright:').warn unless @opt.act[:quiet][:set]==:on
+              SiSU_Screen::Ansi.new(
+                @opt.act[:color_state][:set],
+                'WARNING Document Copyright missing; provide @rights: :copyright:'
+              ).warn unless @opt.act[:quiet][:set]==:on
               ''
             end
             l,n=Db[:col_info_note],'rights.copyright.text'
@@ -603,7 +630,10 @@ module SiSU_Param
               s +='License: ' + copyright.license
             end
             if s.empty?
-              SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'WARNING Document Rights information missing; provide @rights: :copyright:').warn unless @opt.act[:quiet][:set]==:on
+              SiSU_Screen::Ansi.new(
+                @opt.act[:color_state][:set],
+                'WARNING Document Rights information missing; provide @rights: :copyright:'
+              ).warn unless @opt.act[:quiet][:set]==:on
             else
               l,n=Db[:col_info_note],'rights.all'
               validate_length(s,l,n)
@@ -835,8 +865,10 @@ module SiSU_Param
       attr_accessor :make,:env,:path,:file,:fn,:fns,:fno,:fnb,:fnn,:fnt,:fnl,:flv,:fnz,:fnstex,:ocn,:sfx_src,:pdf,:file_type,:dir_out,:dir_tex,:dir_lout,:txt_path,:sisu,:sisu_version,:ruby_version,:title,:subtitle,:full_title,:html_title,:subtitle_tex,:creator,:classify,:author_home,:author,:author_title,:author_nationality,:authors,:authorship,:translator,:illustrator,:prepared_by,:digitized_by,:subject,:description,:publisher,:current_publisher,:contributor,:date,:date_created,:date_issued,:date_available,:date_valid,:date_modified,:date_translated,:date_added_to_site,:date_scheme,:date_created_scheme,:date_issued_scheme,:date_available_scheme,:date_valid_scheme,:date_modified_scheme,:type,:format,:identifier,:source,:language,:language_original,:relation,:coverage,:rights,:keywords,:comments,:abstract,:cls_loc,:cls_dewey,:cls_pg,:cls_isbn,:papersize,:papersize_array,:toc,:lv0,:lv1,:lv2,:lv3,:lv4,:lv5,:lv6,:lvs,:pagenew,:pagebreak,:pageline,:num_top,:bold_match_list,:italics_match_list,:substitution_match_list,:emphasis_set_to,:toc_lev_limit,:flag_endnotes,:flag_auto_endnotes,:flag_separate_endnotes,:flag_separate_endnotes_make,:markup,:markup_instruction,:flag_tables,:vocabulary,:doc_css,:yaml,:lnk,:links,:prefix_a,:prefix_b,:suffix,:information,:contact,:icon,:image,:ad_url,:ad_png,:ad_alt,:ad_began,:flag_promo,:promo,:ad_home,:stmp,:stmpd,:sc_filename,:sc_number,:sc_date,:sc_time,:sc_info,:yamladdr,:locale,:wc_lines,:wc_words,:wc_bytes,:file_encoding,:filesize,:user,:home,:hostname,:pwd,:firstseg,:programs,:author_copymark,:i18n,:lang,:lang_code_insert,:en,:notes,:dgst,:generated,:tags,:tag_array,:concord_make,:seg_names,:seg_autoname_safe,:set_header_title,:set_heading_top,:set_heading_seg,:heading_seg_first,:heading_seg_first_flag,:base_program,:ec,:opt,:sem_tag,:book_idx,:topic_register,:topic_register_array,:original,:writing_focus,:audio,:daisy,:home_button_image,:home_button_links,:footer_links,:cover_image,:man_section
       def initialize(fns_array,opt)
         @env=@path,@file=@fn=@fns=@fno=@fnb=@fnn=@fnt=@fnl=@flv=@fnz=@fnstex=@ocn=@sfx_src=@pdf=@file_type=@dir_out=@dir_tex=@dir_lout=@txt_path=@make=@flag_endnotes=@flag_auto_endnotes=@flag_separate_endnotes=@flag_separate_endnotes_make=@sisu=@sisu_version=@ruby_version=@title=@subtitle=@full_title=@html_title=@subtitle_tex=@creator=@classify=@author_home=@author=@author_title=@author_nationality=@translator=@illustrator=@prepared_by=@digitized_by=@subject=@description=@publisher=@current_publisher=@contributor=@date=@date_created=@date_issued=@date_available=@date_valid=@date_modified=@date_translated=@date_added_to_site=@date_scheme=@date_created_scheme=@date_issued_scheme=@date_available_scheme=@date_valid_scheme=@date_modified_scheme=@type=@format=@identifier=@source=@language=@language_original=@relation=@coverage=@rights=@keywords=@comments=@abstract=@cls_loc=@cls_dewey=@cls_pg=@cls_isbn=@papersize=@toc=@lv0=@lv1=@lv2=@lv3=@lv4=@lv5=@lv6=@pagenew=@pagebreak=@pageline=@num_top=@bold_match_list=@italics_match_list=@substitution_match_list=@emphasis_set_to=@toc_lev_limit=@flag_tables=@vocabulary=@doc_css=@yaml=@lnk=@links=@prefix_a=@prefix_b=@suffix=@information=@contact=@icon=@ad_url=@ad_png=@ad_alt=@ad_began=@promo=@ad_home=@stmp=@stmpd=@sc_filename=@sc_number=@sc_date=@sc_time=@sc_info=@yamladdr=@locale=@wc_lines=@wc_words=@wc_bytes=@file_encoding=@filesize=@firstseg=@programs=@author_copymark=@i18n=@lang=@lang_code_insert=@en=@notes=@dgst=@generated=@heading_seg_first=@base_program=@topic_register=@original=@writing_focus=@audio=@home_button_image=@home_button_links=@cover_image=@man_section=nil
-        @data,@path,@fns,@fno,@opt=fns_array,opt.pth,opt.fns,opt.fno,opt #@data used as data
-        @flag_tables,@set_header_title,@set_heading_top,@set_heading_seg,@heading_seg_first_flag,@flag_promo,@book_idx=false,false,false,false,false,false,false
+        @data,      @path,  @fns,   @fno,   @opt=
+          fns_array,opt.pth,opt.fns,opt.fno,opt #@data used as data
+        @flag_tables,@set_header_title,@set_heading_top,@set_heading_seg,@heading_seg_first_flag,@flag_promo,@book_idx=
+          false,     false,            false,           false,           false,                  false,      false
         @seg_autoname_safe=true
         @daisy,@sem_tag=false,false
         @authorship,@markup_instruction,@image='','','','' #check which other values should be set to empty rather than nil
@@ -1020,37 +1052,48 @@ module SiSU_Param
               @lv4=(makes[:lv4]) ? (makes[:lv4]) : @lv4
               @lv5=(makes[:lv5]) ? (makes[:lv5]) : @lv5
               @lv6=(makes[:lv6]) ? (makes[:lv6]) : @lv6
-              @num_top=(makes[:num_top]) \
+              @num_top=
+                (makes[:num_top]) \
                 ? (makes[:num_top]) \
                 : @num_top
-              @substitution_match_list=(makes[:substitution_match_list]) \
+              @substitution_match_list=
+                (makes[:substitution_match_list]) \
                 ? (makes[:substitution_match_list]) \
                 : @substitution_match_list
-              @bold_match_list=(makes[:bold_match_list]) \
+              @bold_match_list=
+                (makes[:bold_match_list]) \
                 ? (makes[:bold_match_list]) \
                 : @bold_match_list
-              @italics_match_list=(makes[:italics_match_list]) \
+              @italics_match_list=
+                (makes[:italics_match_list]) \
                 ? (makes[:italics_match_list]) \
                 : @italics_match_list
-              @emphasis_set_to=(makes[:emphasis_set_to]) \
+              @emphasis_set_to=
+                (makes[:emphasis_set_to]) \
                 ? (makes[:emphasis_set_to]) \
                 : @emphasis_set_to
-              @i18n=(makes[:i18n]) \
+              @i18n=
+                (makes[:i18n]) \
                 ? (makes[:i18n]) \
                 : @i18n
-              @man_section=(makes[:man_section]) \
+              @man_section=
+                (makes[:man_section]) \
                 ? (makes[:man_section]) \
                 : @man_section
-              @footer_links=(makes[:footer_links]) \
+              @footer_links=
+                (makes[:footer_links]) \
                 ? (makes[:footer_links]) \
                 : @footer_links
-              @home_button_links=(makes[:home_button_links]) \
+              @home_button_links=
+                (makes[:home_button_links]) \
                 ? (makes[:home_button_links]) \
                 : @home_button_links
-              @home_button_image=(makes[:home_button_image]) \
+              @home_button_image=
+                (makes[:home_button_image]) \
                 ? (makes[:home_button_image]) \
                 : @home_button_image
-              @cover_image=(makes[:cover_image]) \
+              @cover_image=
+                (makes[:cover_image]) \
                 ? (makes[:cover_image]) \
                 : @cover_image
             end
@@ -1117,10 +1160,14 @@ module SiSU_Param
               : ''
               title=@title.full.gsub(/\s*(?:<p>|<p \/>|<br>|<br \/>)\s*/,' ').
                 gsub(/~\{.+?\}~/,'')
-              SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'Parameters',%{#{title}#{creator}}).txt_grey if @opt.act[:verbose][:set]==:on
+              SiSU_Screen::Ansi.new(
+                @opt.act[:color_state][:set],
+                'Parameters',
+                %{#{title}#{creator}}
+              ).txt_grey if @opt.act[:verbose][:set]==:on
             end
             if not @book_idx \
-            and para =~/^=\{(.+?)\}\s*$/
+            and para =~/^=\{(.+?)\}[\s`]*\Z/m
               @book_idx=true
             end
             unless @code_flag
@@ -1151,11 +1198,11 @@ module SiSU_Param
             elsif para =~/^1~\s+(.+)$/
               t=$1
             end
-            unless @heading_seg_first_flag                                                                             # extract first segment name
+            unless @heading_seg_first_flag                                     # extract first segment name
               @heading_seg_first=t
               @heading_seg_first_flag=true
             end
-            if m                                                                                                       # list all segment names
+            if m                                                               # list all segment names
               @seg_names << m
               @set_heading_seg=true
               if m=~/^\d{1,3}/ \
@@ -1164,7 +1211,7 @@ module SiSU_Param
               end
             end
           end
-          para=para.gsub(/<:=(\S+?)>/,'{ c_\1.png 14x14 }image')                                                           # embedded symbol (image)
+          para=para.gsub(/<:=(\S+?)>/,'{ c_\1.png 14x14 }image')               # embedded symbol (image)
           if para !~/^%+\s/ \
           and para =~@rgx_image
             @ec[:image] << para.scan(@rgx_image).uniq
@@ -1178,7 +1225,11 @@ module SiSU_Param
         unless @make
           if (@opt.act[:verbose_plus][:set]==:on \
           || @opt.act[:maintenance][:set]==:on)
-            SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'@make:','header absent').warn
+            SiSU_Screen::Ansi.new(
+              @opt.act[:color_state][:set],
+              '@make:',
+              'header absent'
+            ).warn
           end
           @make=SiSU_Param::Parameters::MdMake.new('@make: ',@opt,@env).make
         end
@@ -1318,15 +1369,25 @@ module SiSU_Param
         if @en[:note] > 0 \
         and @en[:sum] > 0
           if @en[:sum] > 0
-          else SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'*WARN* both endnote styles used',"~{ #{@en[:sum]} }~ and ^~ #{@en[:mark]}").warn unless @opt.act[:quiet][:set]==:on
+          else
+            SiSU_Screen::Ansi.new(
+              @opt.act[:color_state][:set],
+              '*WARN* both endnote styles used',
+              "~{ #{@en[:sum]} }~ and ^~ #{@en[:mark]}"
+            ).warn unless @opt.act[:quiet][:set]==:on
           end
         end
         if @en[:mark] != @en[:note] \
         and @en[:note] > 0
           @en[:mismatch]=@en[:note] - @en[:mark]
-          SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'*WARN* endnote number mismatch',"endnotes: #{@en[:note]} != endnote reference marks: #{@en[:mark]} (difference = #{@en[:mismatch]})").warn unless @opt.act[:quiet][:set]==:on
+          SiSU_Screen::Ansi.new(
+            @opt.act[:color_state][:set],
+            '*WARN* endnote number mismatch',
+            "endnotes: #{@en[:note]} != endnote reference marks: #{@en[:mark]} (difference = #{@en[:mismatch]})"
+          ).warn unless @opt.act[:quiet][:set]==:on
           footnote_conversion_errors=File.new("#{Dir.pwd}/footnote_conversion_errors.txt",'a')
-          footnote_conversion_errors << "#{@fns}:\n\tendnotes: #{@en[:note]} != endnote reference marks: #{@en[:mark]} (difference = #{@en[:mismatch]})\n"
+          footnote_conversion_errors <<
+            "#{@fns}:\n\tendnotes: #{@en[:note]} != endnote reference marks: #{@en[:mark]} (difference = #{@en[:mismatch]})\n"
         end
         if not @title \
         or not defined? @title.main \
@@ -1335,7 +1396,11 @@ module SiSU_Param
           and  @opt.inspect =~/P/
             #@title=Md.new('Text Insert',@opt,@env).title
           else
-            SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'WARNING: Document Title missing','please provide @title:').warn unless @opt.act[:quiet][:set]==:on
+            SiSU_Screen::Ansi.new(
+              @opt.act[:color_state][:set],
+              'WARNING: Document Title missing',
+              'please provide @title:'
+            ).warn unless @opt.act[:quiet][:set]==:on
           end
         end
         if @author !~/[\S]/
@@ -1343,7 +1408,11 @@ module SiSU_Param
           and  @opt.inspect =~/P/
             #@creator=SiSU_Param::Md.new('Text Insert',@opt,@env).creator
           else
-            SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'WARNING: Document Author missing','please provide @creator: :author:').warn unless @opt.act[:quiet][:set]==:on
+            SiSU_Screen::Ansi.new(
+              @opt.act[:color_state][:set],
+              'WARNING: Document Author missing',
+              'please provide @creator: :author:'
+            ).warn unless @opt.act[:quiet][:set]==:on
           end
         end
         @struct={}
@@ -1426,7 +1495,10 @@ module SiSU_Param
             File.unlink(pstorefile) if FileTest.file?(pstorefile)
             if (@md.opt.act[:verbose_plus][:set]==:on \
             || @md.opt.act[:maintenance][:set]==:on)
-              SiSU_Screen::Ansi.new(@md.opt.act[:color_state][:set],"PStore -> #{pstorefile}").txt_grey
+              SiSU_Screen::Ansi.new(
+                @md.opt.act[:color_state][:set],
+                "PStore -> #{pstorefile}"
+              ).txt_grey
             end
             store=PStore.new(pstorefile)
             store.transaction do
@@ -1447,10 +1519,26 @@ module SiSU_Param
   class Instantiate
     def param_instantiate
       @@date=SiSU_Env::InfoDate.new
-      @@proc=@@filename_txt=@@filename_texinfo=@@filename_lout_portrait=@@filename_lout_landscape=@@filename_html_scroll=@@filename_html_index=@@filename_html_segtoc=@@filename_semantic=@@filename_rss=@@newfile=@@drr=nil
+      @@proc=
+        @@filename_txt=
+        @@filename_texinfo=
+        @@filename_lout_portrait=
+        @@filename_lout_landscape=
+        @@filename_html_scroll=
+        @@filename_html_index=
+        @@filename_html_segtoc=
+        @@filename_semantic=
+        @@filename_rss=
+        @@newfile=
+        @@drr=
+        nil
       @doc={
        initialise: nil,
-       markup: '', lnks: '', stmp: '', prefix_a: '', prefix_b: '',
+       markup: '',
+       lnks: '',
+       stmp: '',
+       prefix_a: '',
+       prefix_b: '',
        req: {}
       }
       @@yaml=@@yamladdr=nil
diff --git a/lib/sisu/v6/po4a.rb b/lib/sisu/v6/po4a.rb
index 3f890cec..66c68fce 100644
--- a/lib/sisu/v6/po4a.rb
+++ b/lib/sisu/v6/po4a.rb
@@ -65,7 +65,7 @@ module SiSU_Po4a
   require_relative 'ao'                                 # ao.rb
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env
-  require_relative 'composite'                          # composite.rb
+  require_relative 'ao_composite'                       # ao_composite.rb
   require_relative 'shared_metadata'                    # shared_metadata.rb
   require_relative 'po4a_set'                           # po4a_set.rb
   include SiSU_Param
diff --git a/lib/sisu/v6/remote.rb b/lib/sisu/v6/remote.rb
index ed5d7fba..37ff723f 100644
--- a/lib/sisu/v6/remote.rb
+++ b/lib/sisu/v6/remote.rb
@@ -118,7 +118,7 @@ module SiSU_Remote
       rescue LoadError
         SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).error('open-uri or pp NOT FOUND (LoadError)')
       end
-      require_relative 'composite'                      # composite.rb
+      require_relative 'ao_composite'                   # ao_composite.rb
       @rgx_image=/(?:^|[^_\\])\{\s*(\S+?\.(?:png|jpg|gif))/
       threads=[]
       for requested_page in @get_s
diff --git a/lib/sisu/v6/sysenv.rb b/lib/sisu/v6/sysenv.rb
index 2c2a8c10..3c774c46 100644
--- a/lib/sisu/v6/sysenv.rb
+++ b/lib/sisu/v6/sysenv.rb
@@ -6032,7 +6032,7 @@ WOK
       end
       def textile
         def ft
-         'textile_CONSTRUCTION_ZONE'
+         'textile' + DEVELOPER[:under_construction]
         end
         def dir
           set_path(ft).dir.abc
@@ -6053,7 +6053,7 @@ WOK
       end
       def asciidoc
         def ft
-         'asciidoc_CONSTRUCTION_ZONE'
+         'asciidoc' + DEVELOPER[:under_construction]
         end
         def dir
           set_path(ft).dir.abc
@@ -6074,7 +6074,7 @@ WOK
       end
       def markdown
         def ft
-         'markdown_CONSTRUCTION_ZONE'
+         'markdown' + DEVELOPER[:under_construction]
         end
         def dir
           set_path(ft).dir.abc
@@ -6095,7 +6095,7 @@ WOK
       end
       def rst
         def ft
-         'rst_CONSTRUCTION_ZONE'
+         'rst' + DEVELOPER[:under_construction]
         end
         def dir
           set_path(ft).dir.abc
@@ -6315,7 +6315,7 @@ WOK
       end
       def xml_docbook
         def ft
-         'docbook_CONSTRUCTION_ZONE'
+         'docbook' + DEVELOPER[:under_construction]
         end
         def dir
           set_path(ft).dir.abc
@@ -6339,7 +6339,7 @@ WOK
       end
       def xml_docbook_article
         def ft
-         'docbook'
+         'docbook' + DEVELOPER[:under_construction]
         end
         def dir
           set_path(ft).dir.abc
@@ -6363,7 +6363,7 @@ WOK
       end
       def xml_docbook_book
         def ft
-         'docbook_CONSTRUCTION_ZONE'
+         'docbook' + DEVELOPER[:under_construction]
         end
         def dir
           set_path(ft).dir.abc
@@ -6387,7 +6387,7 @@ WOK
       end
       def xml_fictionbook
         def ft
-         'fictionbook_CONSTRUCTION_ZONE'
+         'fictionbook' + DEVELOPER[:under_construction]
         end
         def dir
           set_path(ft).dir.abc
diff --git a/lib/sisu/v6/xhtml_epub2_segments.rb b/lib/sisu/v6/xhtml_epub2_segments.rb
index d249b0ff..8b9254d4 100644
--- a/lib/sisu/v6/xhtml_epub2_segments.rb
+++ b/lib/sisu/v6/xhtml_epub2_segments.rb
@@ -80,6 +80,7 @@ module SiSU_XHTML_EPUB2_Seg
           filename_seg << @seg[:heading_endnotes] << @seg[:headings] << %{\n<div class="content">\n} << @seg[:endnote_all] << '</div>'
         elsif @type=='idx'
           @seg[:headings]=[]
+          txt_obj={ txt: 'Index', ocn_display: ''}
           format_seg=SiSU_XHTML_EPUB2_Format::FormatSeg.new(@md,txt_obj)
           @seg[:headings] << format_seg.title_heading1
           filename_seg << @seg[:heading_idx] << @seg[:headings] << %{\n<div class="content">\n} << @seg[:idx] << '</div>'
diff --git a/rbuild b/rbuild
index f9098868..540bc568 100644
--- a/rbuild
+++ b/rbuild
@@ -37,8 +37,8 @@
 #require 'mkmf'
 #create_makefile("sisu")
 #% manual settings, edit/update as required (note current default settings are obtained from sisu version yml file)
-SiSU_version_next_stable     = '5.4.2'
-SiSU_version_next_unstable   = '6.0.8'
+SiSU_version_next_stable     = '5.4.3'
+SiSU_version_next_unstable   = '6.0.9'
 #% rake file
 SiSU_version_generic_next_stable     = '5.4.x'
 SiSU_version_generic_next_unstable   = '6.0.x'