78 files changed, 4589 insertions, 1342 deletions

diff --git a/lib/sisu/v4/hub.rb b/lib/sisu/v4/hub.rb
index ebe9ccf4..5965994f 100644
--- a/lib/sisu/v4/hub.rb
+++ b/lib/sisu/v4/hub.rb
@@ -388,7 +388,6 @@ module SiSU
             SiSU_Source::SiSUpodSource.new(@opt).read
           end
           if @opt.act[:share_source][:set]==:on
-#REDO
             require_relative 'share_src'               # -s     share_src.rb
             begin
             ensure
@@ -516,6 +515,9 @@ module SiSU
       SiSU_Env::InfoProcessingFlag.new
       if @opt.act[:version_info][:set]==:on              #% version information
         SiSU_Env::InfoAbout.new(@opt).sisu_version
+        if @opt.cmd =~/[vVM]/
+          SiSU_Screen::Ansi.new(@opt.cmd,' ' + File.dirname(__FILE__)).grey
+        end
       end
       if @opt.act[:dal][:set]==:on \
       or @opt.act[:maintenance][:set]==:on               #% --maintenance, -m for -C
diff --git a/lib/sisu/v4/screen_text_color.rb b/lib/sisu/v4/screen_text_color.rb
index ea9ae24d..5e395133 100644
--- a/lib/sisu/v4/screen_text_color.rb
+++ b/lib/sisu/v4/screen_text_color.rb
@@ -253,6 +253,9 @@ module SiSU_Screen
         %{#{@cX.off} } +
         %{#{@cX.cyan}nav only: #{@txt[4]}#{@cX.off}.}
     end
+    def grey
+      puts "#{@cX.grey}#{@txt[0]}#{@cX.off} #{@cX.cyan}#{@txt[1]}#{@cX.off}"
+    end
     def txt_white
       puts "\t#{@cX.white}#{@txt[0]}#{@cX.off} #{@cX.white}#{@txt[1]}#{@cX.off}"
     end
diff --git a/lib/sisu/v5/air.rb b/lib/sisu/v5/air.rb
index cd5c2f68..a6636fe9 100644
--- a/lib/sisu/v5/air.rb
+++ b/lib/sisu/v5/air.rb
@@ -62,7 +62,7 @@
 module SiSU_Air
   require_relative 'particulars'                        # particulars.rb
   class Source
-    @@dal_array=[]
+    @@ao_array=[]
     @@fns=nil
     def initialize(opt)
       @opt=opt
@@ -70,7 +70,7 @@ module SiSU_Air
       @particulars=SiSU_Particulars::Combined.new(opt)
       #@env=@particulars.env
       #@md=@particulars.md
-      #@dal_array=@particulars.dal_array
+      #@ao_array=@particulars.ao_array
     end
     def read
     end
@@ -78,7 +78,7 @@ module SiSU_Air
     def print
       puts @particulars.md.inspect
       puts @particulars.env.inspect
-      puts @particulars.dal_array
+      puts @particulars.ao_array
     end
   end
 end
diff --git a/lib/sisu/v5/dal.rb b/lib/sisu/v5/ao.rb
index fb8a19ae..7c367980 100644
--- a/lib/sisu/v5/dal.rb
+++ b/lib/sisu/v5/ao.rb
@@ -50,7 +50,7 @@
 
  * 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/dal.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/ao.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
@@ -60,26 +60,26 @@
    in subsequent processing
 
 =end
-module SiSU_DAL
+module SiSU_AO
   require_relative 'defaults'                           # defaults.rb
     include SiSU_Viz
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env
   require_relative 'param'                              # param.rb
     include SiSU_Param
-  require_relative 'dal_doc_objects'                    # dal_doc_objects.rb
-  require_relative 'dal_syntax'                         # dal_syntax.rb
-    include SiSU_DAL_Syntax
-  require_relative 'dal_doc_str'                        # dal_doc_str.rb
-  require_relative 'dal_idx'                            # dal_idx.rb
-  require_relative 'dal_numbering'                      # dal_numbering.rb
-  require_relative 'dal_hash_digest'                    # dal_hash_digest.rb
-  require_relative 'dal_endnotes'                       # dal_endnotes.rb
-  require_relative 'dal_images'                         # dal_images.rb
-  require_relative 'dal_metadata'                       # dal_metadata.rb
-  require_relative 'dal_character_check'                # dal_character_check.rb
-  require_relative 'dal_misc_arrange'                   # dal_misc_arrange.rb
-  require_relative 'dal_expand_insertions'              # dal_expand_insertions.rb
+  require_relative 'ao_doc_objects'                     # ao.rb
+  require_relative 'ao_syntax'                          # ao_syntax.rb
+    include SiSU_AO_Syntax
+  require_relative 'ao_doc_str'                         # ao_doc_str.rb
+  require_relative 'ao_idx'                             # ao_idx.rb
+  require_relative 'ao_numbering'                       # ao_numbering.rb
+  require_relative 'ao_hash_digest'                     # ao_hash_digest.rb
+  require_relative 'ao_endnotes'                        # ao_endnotes.rb
+  require_relative 'ao_images'                          # ao_images.rb
+  require_relative 'ao_metadata'                        # ao_metadata.rb
+  require_relative 'ao_character_check'                 # ao_character_check.rb
+  require_relative 'ao_misc_arrange'                    # ao_misc_arrange.rb
+  require_relative 'ao_expand_insertions'               # ao_expand_insertions.rb
   require_relative 'prog_text_translation'              # prog_text_translation.rb
   require_relative 'shared_sem'                         # shared_sem.rb
   class Instantiate < SiSU_Param::Parameters::Instructions
@@ -89,7 +89,7 @@ module SiSU_DAL
     end
   end
   class Source <Instantiate
-    @@dal_array=[]
+    @@ao_array=[]
     @@idx_arr={ sst: [], tex: [], html: [], xhtml: [] }
     @@map_arr={ nametags: [], ocn_htmlseg: [] }
     @@fns=nil
@@ -105,55 +105,55 @@ module SiSU_DAL
         opt.fns
       end
       @make_fns=SiSU_Env::InfoFile.new(fn_use)
-      @fnm=@make_fns.marshal.dal_metadata
-      @fnc=@make_fns.marshal.dal_content
-      @idx_sst=@make_fns.marshal.dal_idx_sst_rel_html_seg
-      @idx_raw=@make_fns.marshal.dal_idx_sst_rel
-      @idx_html=@make_fns.marshal.dal_idx_html
-      @idx_xhtml=@make_fns.marshal.dal_idx_xhtml
-      @map_nametags=@make_fns.marshal.dal_map_nametags
-      @map_ocn_htmlseg=@make_fns.marshal.dal_map_ocn_htmlseg
+      @fnm=@make_fns.marshal.ao_metadata
+      @fnc=@make_fns.marshal.ao_content
+      @idx_sst=@make_fns.marshal.ao_idx_sst_rel_html_seg
+      @idx_raw=@make_fns.marshal.ao_idx_sst_rel
+      @idx_html=@make_fns.marshal.ao_idx_html
+      @idx_xhtml=@make_fns.marshal.ao_idx_xhtml
+      @map_nametags=@make_fns.marshal.ao_map_nametags
+      @map_ocn_htmlseg=@make_fns.marshal.ao_map_ocn_htmlseg
       @env=SiSU_Env::InfoEnv.new
     end
-    def read                                                                   #creates dal
+    def read                                                                   #creates ao
       begin
-        @@dal_array=[]
+        @@ao_array=[]
         @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
         ? @fnx
         : @opt.fns
-        create_dal
+        create_ao
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@@fns).location do
           __LINE__.to_s + ':' + __FILE__
         end
       ensure
-        SiSU_DAL::Instantiate.new
+        SiSU_AO::Instantiate.new
       end
     end
-    def get                                                                    #reads dal, unless does not exist then creates first
+    def get                                                                    #reads ao, unless does not exist then creates first
       begin
-        dal=[]
+        ao=[]
         unless @@fns==@opt.fns \
         or @@fns==@fnx
           @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
           ? @fnx
           : @opt.fns
-          @@dal_array=[]
+          @@ao_array=[]
         end
-        dal=(@@dal_array.empty?) \
+        ao=(@@ao_array.empty?) \
         ? read_fnc
-        : @@dal_array.dup
+        : @@ao_array.dup
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
         end
       ensure
-        SiSU_DAL::Instantiate.new
+        SiSU_AO::Instantiate.new
       end
     end
-    def get_idx_sst                                                            #reads dal idx.sst, #unless does not exist then creates first
+    def get_idx_sst                                                            #reads ao idx.sst, #unless does not exist then creates first
       begin
-        dal=[]
+        ao=[]
         unless @@fns==@opt.fns \
         or @@fns==@fnx
           @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
@@ -161,18 +161,18 @@ module SiSU_DAL
           : @opt.fns
           @@idx_arr[:sst]=[]
         end
-        dal=(@@idx_arr[:sst].empty?) ? read_idx_sst : @@idx_arr[:sst].dup #check
+        ao=(@@idx_arr[:sst].empty?) ? read_idx_sst : @@idx_arr[:sst].dup #check
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
         end
       ensure
-        SiSU_DAL::Instantiate.new
+        SiSU_AO::Instantiate.new
       end
     end
     def get_idx_raw
       begin
-        dal=[]
+        ao=[]
         unless @@fns==@opt.fns \
         or @@fns==@fnx
           @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
@@ -180,18 +180,18 @@ module SiSU_DAL
           : @opt.fns
           @@idx_arr[:tex]=[]
         end
-        dal=(@@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__
         end
       ensure
-        SiSU_DAL::Instantiate.new
+        SiSU_AO::Instantiate.new
       end
     end
-    def get_idx_html                                                           #reads dal idx.html, #unless does not exist then creates first
+    def get_idx_html                                                           #reads ao idx.html, #unless does not exist then creates first
       begin
-        dal=[]
+        ao=[]
         unless @@fns==@opt.fns \
         or @@fns==@fnx
           @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
@@ -199,18 +199,18 @@ module SiSU_DAL
           : @opt.fns
           @@idx_arr[:html]=[]
         end
-        dal=(@@idx_arr[:html].empty?) ? read_idx_html : @@idx_arr[:html].dup
+        ao=(@@idx_arr[:html].empty?) ? read_idx_html : @@idx_arr[:html].dup
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
         end
       ensure
-        SiSU_DAL::Instantiate.new
+        SiSU_AO::Instantiate.new
       end
     end
-    def get_idx_xhtml                                                          #reads dal idx.xhtml, #unless does not exist then creates first
+    def get_idx_xhtml                                                          #reads ao idx.xhtml, #unless does not exist then creates first
       begin
-        dal=[]
+        ao=[]
         unless @@fns==@opt.fns \
         or @@fns==@fnx
           @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
@@ -218,18 +218,18 @@ module SiSU_DAL
           : @opt.fns
           @@idx_arr[:xthml]=[]
         end
-        dal=(@@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__
         end
       ensure
-        SiSU_DAL::Instantiate.new
+        SiSU_AO::Instantiate.new
       end
     end
-    def get_map_nametags                                                       #reads dal map.nametags, #unless does not exist then creates first
+    def get_map_nametags                                                       #reads ao map.nametags, #unless does not exist then creates first
       begin
-        dal=[]
+        ao=[]
         unless @@fns==@opt.fns \
         or @@fns==@fnx
           @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
@@ -237,18 +237,18 @@ module SiSU_DAL
           : @opt.fns
           @@map_arr[:nametags]=[]
         end
-        dal=(@@map_arr[:nametags].empty?) ? read_map_nametags : @@map_arr[:nametags].dup
+        ao=(@@map_arr[:nametags].empty?) ? read_map_nametags : @@map_arr[:nametags].dup
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
         end
       ensure
-        SiSU_DAL::Instantiate.new
+        SiSU_AO::Instantiate.new
       end
     end
-    def get_map_ocn_htmlseg                                                    #reads dal map.ocn_htmlseg, #unless does not exist then creates first
+    def get_map_ocn_htmlseg                                                    #reads ao map.ocn_htmlseg, #unless does not exist then creates first
       begin
-        dal=[]
+        ao=[]
         unless @@fns==@opt.fns \
         or @@fns==@fnx
           @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
@@ -256,18 +256,18 @@ module SiSU_DAL
           : @opt.fns
           @@map_arr[:ocn_htmlseg]=[]
         end
-        dal=(@@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__
         end
       ensure
-        SiSU_DAL::Instantiate.new
+        SiSU_AO::Instantiate.new
       end
     end
   protected
-    def create_dal
-      dal_array=[]
+    def create_ao
+      ao_array=[]
       unless @opt.act[:quiet][:set]==:on
         tell=(@opt.act[:verbose][:set]==:on \
         || @opt.act[:verbose_plus][:set]==:on \
@@ -285,7 +285,7 @@ module SiSU_DAL
       meta=file_array=@env.source_file_processing_array(fn)
       @md=SiSU_Param::Parameters::Instructions.new(meta,@opt).extract
       meta=nil
-      dal=SiSU_DAL::Make.new(fn,@md,file_array).song
+      ao=SiSU_AO::Make.new(fn,@md,file_array).song
       if (@opt.act[:verbose][:set]==:on \
       || @opt.act[:verbose_plus][:set]==:on \
       || @opt.act[:maintenance][:set]==:on)
@@ -294,12 +294,12 @@ module SiSU_DAL
         || @opt.act[:verbose_plus][:set]==:on)
           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],"dal -> #{cf.meta}").txt_grey
+          SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],"ao -> #{cf.meta}").txt_grey
         end
       end
-      dal.each {|s| dal_array << s}
+      ao.each {|s| ao_array << s}
       if @opt.act[:maintenance][:set]==:on
-        dal_array.each do |obj|
+        ao_array.each do |obj|
           if defined? obj.parent
             if defined? obj.ln
               if defined? obj.node
@@ -317,19 +317,19 @@ module SiSU_DAL
           end
         end
       end
-      dal_array
+      ao_array
     end
     def read_fnm
-      dal=[]
-      dal=(FileTest.file?(@fnm)) \
-      ? (File.open(@fnm,'r:utf-8'){ |f| dal=Marshal.load(f)})
-      : SiSU_DAL::Source.new(@opt).create_dal
+      ao=[]
+      ao=(FileTest.file?(@fnm)) \
+      ? (File.open(@fnm,'r:utf-8'){ |f| ao=Marshal.load(f)})
+      : SiSU_AO::Source.new(@opt).create_ao
     end
     def read_fnc
-      dal=[]
-      dal=(FileTest.file?(@fnc)) \
-      ? (File.open(@fnc,'r:utf-8'){ |f| dal=Marshal.load(f)})
-      : SiSU_DAL::Source.new(@opt).create_dal
+      ao=[]
+      ao=(FileTest.file?(@fnc)) \
+      ? (File.open(@fnc,'r:utf-8'){ |f| ao=Marshal.load(f)})
+      : SiSU_AO::Source.new(@opt).create_ao
     end
     def read_idx_sst
       m=[]
@@ -439,21 +439,21 @@ module SiSU_DAL
           end
         end
       else
-        hard="#{@dir.processing_path.dal}/#{@md.fns}.meta"
+        hard="#{@dir.processing_path.ao}/#{@md.fns}.meta"
         File.unlink(hard) if FileTest.file?(hard)
-        hard="#{@dir.processing_path.dal}/#{@md.fns}.txt"
+        hard="#{@dir.processing_path.ao}/#{@md.fns}.txt"
         File.unlink(hard) if FileTest.file?(hard)
-        hard="#{@dir.processing_path.dal}/#{@md.fns}.debug.txt"
+        hard="#{@dir.processing_path.ao}/#{@md.fns}.debug.txt"
         File.unlink(hard) if FileTest.file?(hard)
       end
     end
     def make_marshal_content
-      marshal_dal=@make.marshal.dal_content
-      File.open(marshal_dal,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Array)
+      marshal_ao=@make.marshal.ao_content
+      File.open(marshal_ao,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Array)
     end
     def make_marshal_metadata
-      marshal_dal=@make.marshal.dal_metadata
-      File.open(marshal_dal,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Array)
+      marshal_ao=@make.marshal.ao_metadata
+      File.open(marshal_ao,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Array)
     end
     def idx_html_hard_output
       if @md.book_idx \
@@ -464,33 +464,33 @@ module SiSU_DAL
           @data.each {|s| filename_meta.puts s.strip + "\n" unless s.strip.empty?}
         end
       else
-        hard_idx_html="#{@dir.processing_path.dal}/#{@md.fns}.idx.html"
+        hard_idx_html="#{@dir.processing_path.ao}/#{@md.fns}.idx.html"
         File.unlink(hard_idx_html) if FileTest.file?(hard_idx_html)
       end
     end
     def make_marshal_idx_sst_html_seg
-      marshal_dal=@make.marshal.dal_idx_sst_rel_html_seg
-      File.open(marshal_dal,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Array)
+      marshal_ao=@make.marshal.ao_idx_sst_rel_html_seg
+      File.open(marshal_ao,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Array)
     end
     def make_marshal_idx_sst_rel
-      marshal_dal=@make.marshal.dal_idx_sst_rel
-      File.open(marshal_dal,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Array)
+      marshal_ao=@make.marshal.ao_idx_sst_rel
+      File.open(marshal_ao,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Array)
     end
     def make_marshal_idx_html
-      marshal_dal=@make.marshal.dal_idx_html
-      File.open(marshal_dal,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Array)
+      marshal_ao=@make.marshal.ao_idx_html
+      File.open(marshal_ao,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Array)
     end
     def make_marshal_idx_xhtml
-      marshal_dal=@make.marshal.dal_idx_xhtml
-      File.open(marshal_dal,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Array)
+      marshal_ao=@make.marshal.ao_idx_xhtml
+      File.open(marshal_ao,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Array)
     end
     def make_marshal_map_nametags
-      marshal_dal=@make.marshal.dal_map_nametags
-      File.open(marshal_dal,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Hash)
+      marshal_ao=@make.marshal.ao_map_nametags
+      File.open(marshal_ao,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Hash)
     end
     def make_marshal_map_name_ocn_htmlseg
-      marshal_dal=@make.marshal.dal_map_ocn_htmlseg
-      File.open(marshal_dal,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Hash)
+      marshal_ao=@make.marshal.ao_map_ocn_htmlseg
+      File.open(marshal_ao,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Hash)
     end
   end
   class Make
@@ -505,28 +505,28 @@ module SiSU_DAL
     def song
       reset
       data=@data
-      data=SiSU_DAL_Insertions::Insertions.new(@md,data).expand_insertions?                                              # dal_expand_insertions.rb
-      data=SiSU_DAL_MiscArrangeText::SI.new(@md,data).prepare_text                                                       # dal_misc_arrange.rb
-      data,metadata=SiSU_DAL_DocumentStructureExtract::Build.new(@md,data).identify_parts                                # dal_doc_str.rb
-      data=SiSU_DAL_Syntax::Markup.new(@md,data).songsheet                                                               # dal_syntax.rb
-      data,endnote_array=SiSU_DAL_CharacterCheck::Check.new(data).character_check_and_oldstyle_endnote_array             # dal_character_check.rb
-      data=SiSU_DAL_Images::Images.new(@md,data).images                                                                  # dal_images.rb
-      data,tags_map,ocn_html_seg_map=SiSU_DAL_Numbering::Numbering.new(@md,data).numbering_song                          # dal_numbering.rb
-      data,book_index_rel,book_index_rel_html_seg,html_idx,xhtml_idx=SiSU_DAL_BookIndex::BookIndex.new(@md,data,@env).indexing_song if @md.book_idx  # dal_idx.rb
-      data=SiSU_DAL_Endnotes::Endnotes.new(@md,data,endnote_array).endnotes                                              # dal_endnotes.rb
+      data=SiSU_AO_Insertions::Insertions.new(@md,data).expand_insertions?                                              # ao_expand_insertions.rb
+      data=SiSU_AO_MiscArrangeText::SI.new(@md,data).prepare_text                                                       # ao_misc_arrange.rb
+      data,metadata=SiSU_AO_DocumentStructureExtract::Build.new(@md,data).identify_parts                                # ao_doc_str.rb
+      data=SiSU_AO_Syntax::Markup.new(@md,data).songsheet                                                               # ao_syntax.rb
+      data,endnote_array=SiSU_AO_CharacterCheck::Check.new(data).character_check_and_oldstyle_endnote_array             # ao_character_check.rb
+      data=SiSU_AO_Images::Images.new(@md,data).images                                                                  # ao_images.rb
+      data,tags_map,ocn_html_seg_map=SiSU_AO_Numbering::Numbering.new(@md,data).numbering_song                          # ao_numbering.rb
+      data,book_index_rel,book_index_rel_html_seg,html_idx,xhtml_idx=SiSU_AO_BookIndex::BookIndex.new(@md,data,@env).indexing_song if @md.book_idx  # ao_idx.rb
+      data=SiSU_AO_Endnotes::Endnotes.new(@md,data,endnote_array).endnotes                                              # ao_endnotes.rb
       outputdata=data
-      if (@md.opt.act[:dal][:set]==:on \
+      if (@md.opt.act[:ao][:set]==:on \
       || @md.opt.act[:maintenance][:set]==:on)
-        SiSU_DAL::Output.new(@fn,@md,outputdata).hard_output
-        SiSU_DAL::Output.new(@fn,@md,outputdata).make_marshal_content
-        SiSU_DAL::Output.new(@fn,@md,metadata).make_marshal_metadata
-        SiSU_DAL::Output.new(@fn,@md,html_idx).idx_html_hard_output
-        SiSU_DAL::Output.new(@fn,@md,book_index_rel_html_seg).make_marshal_idx_sst_html_seg
-        SiSU_DAL::Output.new(@fn,@md,book_index_rel).make_marshal_idx_sst_rel
-        SiSU_DAL::Output.new(@fn,@md,html_idx).make_marshal_idx_html
-        SiSU_DAL::Output.new(@fn,@md,xhtml_idx).make_marshal_idx_xhtml
-        SiSU_DAL::Output.new(@fn,@md,tags_map).make_marshal_map_nametags
-        SiSU_DAL::Output.new(@fn,@md,ocn_html_seg_map).make_marshal_map_name_ocn_htmlseg
+        SiSU_AO::Output.new(@fn,@md,outputdata).hard_output
+        SiSU_AO::Output.new(@fn,@md,outputdata).make_marshal_content
+        SiSU_AO::Output.new(@fn,@md,metadata).make_marshal_metadata
+        SiSU_AO::Output.new(@fn,@md,html_idx).idx_html_hard_output
+        SiSU_AO::Output.new(@fn,@md,book_index_rel_html_seg).make_marshal_idx_sst_html_seg
+        SiSU_AO::Output.new(@fn,@md,book_index_rel).make_marshal_idx_sst_rel
+        SiSU_AO::Output.new(@fn,@md,html_idx).make_marshal_idx_html
+        SiSU_AO::Output.new(@fn,@md,xhtml_idx).make_marshal_idx_xhtml
+        SiSU_AO::Output.new(@fn,@md,tags_map).make_marshal_map_nametags
+        SiSU_AO::Output.new(@fn,@md,ocn_html_seg_map).make_marshal_map_name_ocn_htmlseg
       end
       reset
       outputdata
diff --git a/lib/sisu/v5/dal_character_check.rb b/lib/sisu/v5/ao_character_check.rb
index 62aa60c1..86f23f5b 100644
--- a/lib/sisu/v5/dal_character_check.rb
+++ b/lib/sisu/v5/ao_character_check.rb
@@ -50,7 +50,7 @@
 
  * 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/dal_character_check.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/ao_character_check.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
@@ -59,7 +59,7 @@
  ** Description: system environment, resource control and configuration details
 
 =end
-module SiSU_DAL_CharacterCheck
+module SiSU_AO_CharacterCheck
   class Check
     def initialize(data)
       @data=data
diff --git a/lib/sisu/v5/dal_doc_objects.rb b/lib/sisu/v5/ao_doc_objects.rb
index 518535b0..556304d4 100644
--- a/lib/sisu/v5/dal_doc_objects.rb
+++ b/lib/sisu/v5/ao_doc_objects.rb
@@ -50,7 +50,7 @@
 
  * 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/dal_doc_objects.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/ao_doc_objects.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
@@ -59,7 +59,7 @@
  ** Description: document abstraction
 
 =end
-module SiSU_DAL_DocumentStructure
+module SiSU_AO_DocumentStructure
   class Extract
     def extract(h,o)
       h ? h : o
diff --git a/lib/sisu/v5/dal_doc_str.rb b/lib/sisu/v5/ao_doc_str.rb
index 203bc988..465a5666 100644
--- a/lib/sisu/v5/dal_doc_str.rb
+++ b/lib/sisu/v5/ao_doc_str.rb
@@ -50,7 +50,7 @@
 
  * 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/dal_doc_str.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/ao_doc_str.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
@@ -59,7 +59,7 @@
  ** Description: document abstraction
 
 =end
-module SiSU_DAL_DocumentStructureExtract
+module SiSU_AO_DocumentStructureExtract
   class Instantiate < SiSU_Param::Parameters::Instructions
     @@flag={
       ocn:      :on,
@@ -89,10 +89,10 @@ module SiSU_DAL_DocumentStructureExtract
     }
     def initialize(md,data)
       @md,@data=md,data
-      SiSU_DAL_DocumentStructureExtract::Instantiate.new
-      @pb=SiSU_DAL_DocumentStructure::ObjectLayout.new.break(Hx[:br_page])
-      @pbn=SiSU_DAL_DocumentStructure::ObjectLayout.new.break(Hx[:br_page_new])
-      @pbl=SiSU_DAL_DocumentStructure::ObjectLayout.new.break(Hx[:br_page_line])
+      SiSU_AO_DocumentStructureExtract::Instantiate.new
+      @pb=SiSU_AO_DocumentStructure::ObjectLayout.new.break(Hx[:br_page])
+      @pbn=SiSU_AO_DocumentStructure::ObjectLayout.new.break(Hx[:br_page_new])
+      @pbl=SiSU_AO_DocumentStructure::ObjectLayout.new.break(Hx[:br_page_line])
     end
     def ln_get(lv)
       case lv
@@ -238,7 +238,7 @@ module SiSU_DAL_DocumentStructureExtract
             @@flag[:ocn]=:on
             {flag: :ocn_on}
           end
-          t_o=SiSU_DAL_DocumentStructure::ObjectFlag.new.flag_ocn(h)
+          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
@@ -271,7 +271,7 @@ module SiSU_DAL_DocumentStructureExtract
           when /^%+\s/                                     #comment
             t_o=if t_o=~/^%+\s+(.+)/
               h={obj: $1}
-              SiSU_DAL_DocumentStructure::ObjectComment.new.comment(h)
+              SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
             else nil
             end
           when /^:?([A-C1-6])\~/                           #heading / lv
@@ -292,7 +292,7 @@ module SiSU_DAL_DocumentStructureExtract
                 end
               end
               h={ lv: lv, ln: ln, obj: obj, idx: idx, tags: tags }
-              SiSU_DAL_DocumentStructure::ObjectHeading.new.heading(h)
+              SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
             elsif t_o=~/^:?[A-C1-6]\~(\S+?)-\s+(.+)/m
               name,obj=$1,$2
               note=endnote_test?(obj)
@@ -308,7 +308,7 @@ module SiSU_DAL_DocumentStructureExtract
                 end
               end
               h={ lv: lv, name: name, obj: obj, idx: idx, autonum_: false, tags: tags}
-              SiSU_DAL_DocumentStructure::ObjectHeading.new.heading(h)
+              SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
             elsif t_o=~/^:?[A-C1-6]\~(\S+)\s+(.+)/m
               name,obj=$1,$2
               note=endnote_test?(obj)
@@ -324,7 +324,7 @@ module SiSU_DAL_DocumentStructureExtract
                 end
               end
               h={ lv: lv, name: name, obj: obj, idx: idx, tags: tags }
-              SiSU_DAL_DocumentStructure::ObjectHeading.new.heading(h)
+              SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
             else nil
             end
           when /^_(?:[1-9]!?|[1-9]?\*)\s+/                  #indented and/or bullet paragraph
@@ -347,7 +347,7 @@ module SiSU_DAL_DocumentStructureExtract
                   end
                 end
                 h={ bullet_: bullet, hang: hang, indent: indent, obj: obj, idx: idx, note_: note, image_: image, tags: tags }
-                SiSU_DAL_DocumentStructure::ObjectPara.new.paragraph(h)
+                SiSU_AO_DocumentStructure::ObjectPara.new.paragraph(h)
               end
             else nil
             end
@@ -370,18 +370,18 @@ module SiSU_DAL_DocumentStructureExtract
                   end
                 end
                 h={ hang: hang, indent: indent, obj: obj, idx: idx, note_: note, image_: image, tags: tags }
-                SiSU_DAL_DocumentStructure::ObjectPara.new.paragraph(h)
+                SiSU_AO_DocumentStructure::ObjectPara.new.paragraph(h)
               end
             else nil
             end
           when /^<(?:br)?:(?:pa?r|o(?:bj|---)?)>\s*$/      #[br:par] #[br:obj]
-            SiSU_DAL_DocumentStructure::ObjectLayout.new.break(Hx[:br_obj])
+            SiSU_AO_DocumentStructure::ObjectLayout.new.break(Hx[:br_obj])
           when /^(?:-\\\\-|<:pb>)\s*$/                                #[br:pg]
-            SiSU_DAL_DocumentStructure::ObjectLayout.new.break(Hx[:br_page],:markup)
+            SiSU_AO_DocumentStructure::ObjectLayout.new.break(Hx[:br_page],:markup)
           when /^(?:=\\\\=|<:pn>)\s*$/                                #[br:pgn]
-            SiSU_DAL_DocumentStructure::ObjectLayout.new.break(Hx[:br_page_new],:markup)
+            SiSU_AO_DocumentStructure::ObjectLayout.new.break(Hx[:br_page_new],:markup)
           when /^-\.\.-\s*$/                                          #[br:pgl]
-            SiSU_DAL_DocumentStructure::ObjectLayout.new.break(Hx[:br_page_line],:markup)
+            SiSU_AO_DocumentStructure::ObjectLayout.new.break(Hx[:br_page_line],:markup)
           else                                             #paragraph
             image=image_test(t_o)
             note=endnote_test?(t_o)
@@ -394,7 +394,7 @@ module SiSU_DAL_DocumentStructureExtract
             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_DAL_DocumentStructure::ObjectPara.new.paragraph(h)
+              SiSU_AO_DocumentStructure::ObjectPara.new.paragraph(h)
             end
           end
         elsif @@flag[:code]==:off
@@ -407,7 +407,7 @@ module SiSU_DAL_DocumentStructureExtract
             @@counter=1
             @codeblock_numbered=(t_o =~/^(?:code\{#|[`]{3}\s+code\s[#])/) ? true : false
             h={ obj: 'code block start' }                   #introduce a counter
-            t_o=SiSU_DAL_DocumentStructure::ObjectComment.new.comment(h)
+            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
           elsif t_o =~/^(?:poem\{|[`]{3}\s+poem)/
             @@flag[:poem]=case t_o
             when /^poem\{/;        :curls
@@ -415,7 +415,7 @@ module SiSU_DAL_DocumentStructureExtract
             else                   @@flag[:poem] #error
             end
             h={ obj: 'poem start' }                         #introduce a counter
-            t_o=SiSU_DAL_DocumentStructure::ObjectComment.new.comment(h)
+            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
             tuned_file << t_o
           elsif t_o =~/^(?:group\{|[`]{3}\s+group)/
             @@flag[:group]=case t_o
@@ -424,7 +424,7 @@ module SiSU_DAL_DocumentStructureExtract
             else                    @@flag[:group] #error
             end
             h={ obj: 'group text start' }                   #introduce a counter
-            t_o=SiSU_DAL_DocumentStructure::ObjectComment.new.comment(h)
+            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
             tuned_file << t_o
           elsif t_o =~/^(?:block\{|[`]{3}\s+block)/
             @@flag[:block]=case t_o
@@ -433,7 +433,7 @@ module SiSU_DAL_DocumentStructureExtract
             else                    @@flag[:block] #error
             end
             h={ obj: 'block text start' }                   #introduce a counter
-            t_o=SiSU_DAL_DocumentStructure::ObjectComment.new.comment(h)
+            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
             tuned_file << t_o
           elsif t_o =~/^(?:alt\{|[`]{3}\s+alt)/
             @@flag[:alt]=case t_o
@@ -442,11 +442,11 @@ module SiSU_DAL_DocumentStructureExtract
             else                  @@flag[:alt] #error
             end
             h={ obj: 'alt text start' }                     #introduce a counter
-            t_o=SiSU_DAL_DocumentStructure::ObjectComment.new.comment(h)
+            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
             tuned_file << t_o
           elsif t_o =~/^(?:table\{|[`]{3}\s+table|\{table)[ ~]/
             h={ obj: 'table start' }                        #introduce a counter
-            ins=SiSU_DAL_DocumentStructure::ObjectComment.new.comment(h)
+            ins=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
             tuned_file << ins
             if t_o=~/^table\{(?:~h)?\s+/
               @@flag[:table]=:curls
@@ -500,10 +500,10 @@ module SiSU_DAL_DocumentStructureExtract
                 cols.times { col << width }
               end
               h={ head_: hd, cols: cols, widths: col, obj: rows, idx: idx, tags: tags }
-              t_o=SiSU_DAL_DocumentStructure::ObjectTable.new.table(h) unless h.nil?
+              t_o=SiSU_AO_DocumentStructure::ObjectTable.new.table(h) unless h.nil?
               tuned_file << t_o
               h={ obj: 'table end' }                        #introduce a counter
-              t_o=SiSU_DAL_DocumentStructure::ObjectComment.new.comment(h)
+              t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
               t_o
             elsif t_o=~/^[`]{3}\s+table(?:~h)?\s+/
               m1,m2,hd=nil,nil,nil
@@ -523,10 +523,10 @@ module SiSU_DAL_DocumentStructureExtract
                 rows += r + Mx[:tc_c]
               end
               h={ head_: hd, cols: col.length, widths: col, obj: rows, idx: idx, tags: tags }
-              t_o=SiSU_DAL_DocumentStructure::ObjectTable.new.table(h) unless h.nil?
+              t_o=SiSU_AO_DocumentStructure::ObjectTable.new.table(h) unless h.nil?
               tuned_file << t_o
               h={ obj: 'table end' }                        #introduce a counter
-              t_o=SiSU_DAL_DocumentStructure::ObjectComment.new.comment(h)
+              t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
               t_o
             elsif t_o=~/^\{table(?:~h)?\s+/
               m1,m2,hd=nil,nil,nil
@@ -546,10 +546,10 @@ module SiSU_DAL_DocumentStructureExtract
                 rows += r + Mx[:tc_c]
               end
               h={ head_: hd, cols: col.length, widths: col, obj: rows, idx: idx, tags: tags }
-              t_o=SiSU_DAL_DocumentStructure::ObjectTable.new.table(h) unless h.nil?
+              t_o=SiSU_AO_DocumentStructure::ObjectTable.new.table(h) unless h.nil?
               tuned_file << t_o
               h={ obj: 'table end' }                        #introduce a counter
-              t_o=SiSU_DAL_DocumentStructure::ObjectComment.new.comment(h)
+              t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
               t_o
             end
           end
@@ -563,11 +563,11 @@ module SiSU_DAL_DocumentStructureExtract
             @@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 }
-            t_o=SiSU_DAL_DocumentStructure::ObjectTable.new.table(@h)
+            t_o=SiSU_AO_DocumentStructure::ObjectTable.new.table(@h)
             tuned_file << t_o
             @h,@rows=nil,''
             h={ obj: 'table end' }                          #introduce a counter
-            t_o=SiSU_DAL_DocumentStructure::ObjectComment.new.comment(h)
+            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
             t_o
           else
             if t_o.is_a?(String) \
@@ -586,18 +586,18 @@ module SiSU_DAL_DocumentStructureExtract
             obj=@tuned_code.join("\n")
             tags=[]
             h={ obj: obj, tags: tags, number_: @codeblock_numbered }
-            t_o=SiSU_DAL_DocumentStructure::ObjectBlockTxt.new.code(h)
+            t_o=SiSU_AO_DocumentStructure::ObjectBlockTxt.new.code(h)
             @tuned_code=[]
             tuned_file << t_o
             h={ obj: 'code block end' }                     #introduce a counter
-            t_o=SiSU_DAL_DocumentStructure::ObjectComment.new.comment(h)
+            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
           end
           if (@@flag[:code]==:curls or @@flag[:code]==:tics) \
           and t_o.is_a?(String)
             sub_array=t_o.dup + "#{Mx[:br_nl]}"
             @line_mode=[]
             sub_array.scan(/.+/) {|w| @line_mode << w if w =~/[\S]+/}
-            t_o=SiSU_DAL_DocumentStructureExtract::Build.new(@md,@line_mode).build_lines(:code).join
+            t_o=SiSU_AO_DocumentStructureExtract::Build.new(@md,@line_mode).build_lines(:code).join
             @tuned_code << t_o
             t_o=nil
           end
@@ -609,37 +609,37 @@ module SiSU_DAL_DocumentStructureExtract
           or (@@flag[:poem]==:tics and t_o =~/^[`]{3}(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/)
             @@flag[:poem]=:off
             h={ obj: 'poem end' }                           #introduce a counter
-            t_o=SiSU_DAL_DocumentStructure::ObjectComment.new.comment(h)
+            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
           elsif (@@flag[:group]==:curls and t_o =~/^\}group/) \
           or (@@flag[:group]==:tics and t_o =~/^[`]{3}(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/)
             @@flag[:group]=:off
             obj,tags=extract_tags(@tuned_block.join("\n"))
             h={ obj: obj, tags: tags }
             @tuned_block=[]
-            t_o=SiSU_DAL_DocumentStructure::ObjectBlockTxt.new.group(h)
+            t_o=SiSU_AO_DocumentStructure::ObjectBlockTxt.new.group(h)
             tuned_file << t_o
             h={ obj: 'group text end' }                     #introduce a counter
-            t_o=SiSU_DAL_DocumentStructure::ObjectComment.new.comment(h)
+            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
           elsif (@@flag[:block]==:curls and t_o =~/^\}block/) \
           or (@@flag[:block]==:tics and t_o =~/^[`]{3}(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/)
             @@flag[:block]=:off
             obj,tags=extract_tags(@tuned_block.join("\n"))
             h={ obj: obj, tags: tags }
             @tuned_block=[]
-            t_o=SiSU_DAL_DocumentStructure::ObjectBlockTxt.new.block(h)
+            t_o=SiSU_AO_DocumentStructure::ObjectBlockTxt.new.block(h)
             tuned_file << t_o
             h={ obj: 'block text end' }                     #introduce a counter
-            t_o=SiSU_DAL_DocumentStructure::ObjectComment.new.comment(h)
+            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
           elsif (@@flag[:alt]==:curls and t_o =~/^\}alt/) \
           or (@@flag[:alt]==:tics and t_o =~/^[`]{3}(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/)
             @@flag[:alt]=:off
             obj,tags=extract_tags(@tuned_block.join("\n"))
             h={ obj: obj, tags: tags }
-            t_o=SiSU_DAL_DocumentStructure::ObjectBlockTxt.new.alt(h)
+            t_o=SiSU_AO_DocumentStructure::ObjectBlockTxt.new.alt(h)
             @tuned_block=[]
             tuned_file << t_o
             h={ obj: 'alt text end' }                       #introduce a counter
-            t_o=SiSU_DAL_DocumentStructure::ObjectComment.new.comment(h)
+            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
           end
           if (@@flag[:poem]==:curls or @@flag[:poem]==:tics \
           or @@flag[:group]==:curls or @@flag[:group]==:tics \
@@ -650,13 +650,13 @@ module SiSU_DAL_DocumentStructureExtract
             sub_array=t_o.dup
             @line_mode=sub_array.scan(/.+/)
             type=if @@flag[:poem]==:curls or @@flag[:poem]==:tics
-              t_o=SiSU_DAL_DocumentStructureExtract::Build.new(@md,@line_mode).build_lines(type).join
+              t_o=SiSU_AO_DocumentStructureExtract::Build.new(@md,@line_mode).build_lines(type).join
               poem=t_o.split(/\n\n/)
               poem.each do |v|
                 v=v.gsub(/\n/m,"#{Mx[:br_nl]}\n")
                 obj,tags=extract_tags(v)
                 h={ obj: obj, tags: tags }
-                t_o=SiSU_DAL_DocumentStructure::ObjectBlockTxt.new.verse(h)
+                t_o=SiSU_AO_DocumentStructure::ObjectBlockTxt.new.verse(h)
                 tuned_file << t_o
               end
               :poem
@@ -691,26 +691,26 @@ module SiSU_DAL_DocumentStructureExtract
       if @md.flag_endnotes
         tuned_file << @pb
         h={ ln: 2, lc: 2, obj: 'Endnotes', autonum_: false }
-        tuned_file << SiSU_DAL_DocumentStructure::ObjectHeading.new.heading_insert(h)
+        tuned_file << SiSU_AO_DocumentStructure::ObjectHeading.new.heading_insert(h)
         h={ ln: 4, lc: 3, obj: 'Endnotes', name: 'endnotes', autonum_: false }
-        tuned_file << SiSU_DAL_DocumentStructure::ObjectHeading.new.heading_insert(h)
+        tuned_file << SiSU_AO_DocumentStructure::ObjectHeading.new.heading_insert(h)
         h={ obj: 'Endnotes' }
       end
       if @md.book_idx
         tuned_file << @pb
         h={ ln: 2, lc: 2, obj: 'Index', autonum_: false }
-        tuned_file << SiSU_DAL_DocumentStructure::ObjectHeading.new.heading_insert(h)
+        tuned_file << SiSU_AO_DocumentStructure::ObjectHeading.new.heading_insert(h)
         h={ ln: 4, lc: 3, obj: 'Index', name: 'book_index', autonum_: false }
-        tuned_file << SiSU_DAL_DocumentStructure::ObjectHeading.new.heading_insert(h)
+        tuned_file << SiSU_AO_DocumentStructure::ObjectHeading.new.heading_insert(h)
         h={ obj: 'Index' }
       end
       tuned_file << @pb
       h={ ln: 2, lc: 2, obj: 'Metadata', autonum_: false, ocn_: false }
-      tuned_file << SiSU_DAL_DocumentStructure::ObjectHeading.new.heading_insert(h)
+      tuned_file << SiSU_AO_DocumentStructure::ObjectHeading.new.heading_insert(h)
       h={ ln: 4, lc: 3, obj: 'SiSU Metadata, document information', name: 'metadata', autonum_: false, ocn_: false }
-      tuned_file << SiSU_DAL_DocumentStructure::ObjectHeading.new.heading_insert(h)
+      tuned_file << SiSU_AO_DocumentStructure::ObjectHeading.new.heading_insert(h)
       h={ obj: 'eof' }
-      meta=SiSU_DAL_DocumentStructure::ObjectMetadata.new.metadata(@metadata)
+      meta=SiSU_AO_DocumentStructure::ObjectMetadata.new.metadata(@metadata)
       [tuned_file,meta]
     end
     def table_rows_and_columns_array(table_str)
@@ -723,11 +723,11 @@ module SiSU_DAL_DocumentStructureExtract
     end
     def meta_heading(h)
       h={ lv: h[:lv], ln: h[:ln], name: h[:name], obj: h[:obj], ocn: '0' }
-      SiSU_DAL_DocumentStructure::ObjectHeading.new.heading(h)
+      SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
     end
     def meta_para(str)
       h={ obj: str, ocn_: false }
-      SiSU_DAL_DocumentStructure::ObjectPara.new.paragraph(h)
+      SiSU_AO_DocumentStructure::ObjectPara.new.paragraph(h)
     end
     def build_lines(type=:none)
       lines,lines_new=@data,[]
@@ -769,22 +769,22 @@ module SiSU_DAL_DocumentStructureExtract
         @dob=case @dob.obj
         when /^#{@md.lv1}/
           h={ lv: 'A', ln: 1 }
-          SiSU_DAL_DocumentStructure::ObjectHeading.new.heading(h,@dob)
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
         when /^#{@md.lv2}/
           h={ lv: 'B', ln: 2 }
-          SiSU_DAL_DocumentStructure::ObjectHeading.new.heading(h,@dob)
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
         when /^#{@md.lv3}/
           h={ lv: 'C', ln: 3 }
-          SiSU_DAL_DocumentStructure::ObjectHeading.new.heading(h,@dob)
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
         when /^#{@md.lv4}/
           h={ lv: '1', ln: 4 }
-          SiSU_DAL_DocumentStructure::ObjectHeading.new.heading(h,@dob)
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
         when /^#{@md.lv5}/
           h={ lv: '2', ln: 5 }
-          SiSU_DAL_DocumentStructure::ObjectHeading.new.heading(h,@dob)
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
         when /^#{@md.lv6}/
           h={ lv: '3', ln: 6 }
-          SiSU_DAL_DocumentStructure::ObjectHeading.new.heading(h,@dob)
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
         else @dob
         end
       else @dob
@@ -868,7 +868,6 @@ has incorrect level and/or parent level}
         && (dob.of !=:comment \
         && dob.of !=:layout \
         && dob.of !=:meta) \
-        && dob.obj !~/#{Mx[:pa_non_object_no_heading]}|#{Mx[:pa_non_object_dummy_heading]}/ \
         && dob.ocn_
           #dob.ln now is determined, and set earlier, check how best to remove this -->
           if dob.is==:heading
@@ -884,200 +883,258 @@ has incorrect level and/or parent level}
              when '6'; 9
              end
           end
-          if not dob.obj =~/<:#>|~#|-#/ \
-          or not dob.toc_                                  # fix this no longer in dob.obj
+          if not dob.obj =~/~#|-#/
             ocn+=1
-            if dob.is==:heading \
-            and (ln.to_s =~/^[1-9]/ \
-            or ln.to_s =~@md.lv1 \
-            or ln.to_s =~@md.lv2 \
-            or ln.to_s =~@md.lv3 \
-            or ln.to_s =~@md.lv4 \
-            or ln.to_s =~@md.lv5 \
-            or ln.to_s =~@md.lv6)
+          end
+          if dob.is==:heading \
+          and (ln.to_s =~/^[1-9]/ \
+          or ln.to_s =~@md.lv1 \
+          or ln.to_s =~@md.lv2 \
+          or ln.to_s =~@md.lv3 \
+          or ln.to_s =~@md.lv4 \
+          or ln.to_s =~@md.lv5 \
+          or ln.to_s =~@md.lv6)
+            if not dob.obj =~/~#|-#/
               ocnh+=1
-              if ln==1 \
-              or ln=~@md.lv1; ocnh1+=1                     #heading
+            end
+            if ln==1 \
+            or ln=~@md.lv1
+              if not dob.obj =~/~#|-#/
+                ocn_flag=true
+                ocnh1+=1                     #heading
                 node1="1:#{ocnh1};#{ocn}"
-                document_structure_check_info(node1,node0)
-                @collapsed_lv1=1
-                collapsed_level=@collapsed_lv1
-                node,ocn_sp,parent=node1,"h#{ocnh}",node0 #FIX
-              elsif ln==2 \
-              or ln=~@md.lv2; ocnh2+=1
+              else
+                ocn_flag=false
+                node1="1:0;0"
+              end
+              document_structure_check_info(node1,node0)
+              @collapsed_lv1=1
+              collapsed_level=@collapsed_lv1
+              node,ocn_sp,parent=node1,"h#{ocnh}",node0 #FIX
+            elsif ln==2 \
+            or ln=~@md.lv2
+              if not dob.obj =~/~#|-#/
+                ocn_flag=true
+                ocnh2+=1
                 node2="2:#{ocnh2};#{ocn}"
-                parent=if node1
-                  document_structure_check_info(node2,node1)
-                  @collapsed_lv2=@collapsed_lv1+1
-                  node1
-                else
-                  document_structure_check_info(node2,node0,:error)
-                  node0
-                end
-                collapsed_level=@collapsed_lv2
-                node,ocn_sp=node2,"h#{ocnh}"
-              elsif ln==3 \
-              or ln=~@md.lv3; ocnh3+=1
+              else
+                ocn_flag=false
+                node2="2:0;0"
+              end
+              parent=if node1
+                document_structure_check_info(node2,node1)
+                @collapsed_lv2=@collapsed_lv1+1
+                node1
+              else
+                document_structure_check_info(node2,node0,:error)
+                node0
+              end
+              collapsed_level=@collapsed_lv2
+              node,ocn_sp=node2,"h#{ocnh}"
+            elsif ln==3 \
+            or ln=~@md.lv3
+              if not dob.obj =~/~#|-#/
+                ocn_flag=true
+                ocnh3+=1
                 node3="3:#{ocnh3};#{ocn}"
-                parent=if node2
-                  document_structure_check_info(node3,node2)
-                  @collapsed_lv3=@collapsed_lv2+1
-                  node2
-                elsif node1
-                  warning_incorrect_parent_level_or_level(dob.obj)
-                  puts %{parent is :A~ & this level #{dob.lv}
+              else
+                ocn_flag=false
+                node3="3:0;0"
+              end
+              parent=if node2
+                document_structure_check_info(node3,node2)
+                @collapsed_lv3=@collapsed_lv2+1
+                node2
+              elsif node1
+                warning_incorrect_parent_level_or_level(dob.obj)
+                puts %{parent is :A~ & this level #{dob.lv}
 either parent should be level :B~
 or this level should be level :B~ rather than #{dob.lv}}
-                  document_structure_check_info(node3,node1,:error)
-                  @collapsed_lv3=@collapsed_lv1+1
-                  node1
-                else
-                  document_structure_check_info(node3,node0,:error)
-                  warning_incorrect_parent_level_or_level(dob.obj)
-                  node0
-                end
-                collapsed_level=@collapsed_lv3
-                node,ocn_sp=node3,"h#{ocnh}"
-              elsif ln==4 \
-              or ln=~@md.lv4; ocnh4+=1
+                document_structure_check_info(node3,node1,:error)
+                @collapsed_lv3=@collapsed_lv1+1
+                node1
+              else
+                document_structure_check_info(node3,node0,:error)
+                warning_incorrect_parent_level_or_level(dob.obj)
+                node0
+              end
+              collapsed_level=@collapsed_lv3
+              node,ocn_sp=node3,"h#{ocnh}"
+            elsif ln==4 \
+            or ln=~@md.lv4
+              if not dob.obj =~/~#|-#/
+                ocn_flag=true
+                ocnh4+=1
                 node4="4:#{ocnh4};#{ocn}"
-                parent=if node3
-                  document_structure_check_info(node4,node3)
-                  @collapsed_lv4=@collapsed_lv3+1
-                  node3
-                elsif node2
-                  document_structure_check_info(node4,node2)
-                  @collapsed_lv4=@collapsed_lv2+1
-                  node2
-                elsif node1
-                  document_structure_check_info(node4,node1)
-                  @collapsed_lv4=@collapsed_lv1+1
-                  node1
-                else
-                  warning_incorrect_parent_level_or_level(dob.obj)
-                  document_structure_check_info(node4,node0,:error)
-                  node0
-                end
-                collapsed_level=@collapsed_lv4
-                node,ocn_sp=node4,"h#{ocnh}"
-              elsif ln==5 \
-              or ln=~@md.lv5; ocnh5+=1
+              else
+                ocn_flag=false
+                node4="4:0;0"
+              end
+              parent=if node3
+                document_structure_check_info(node4,node3)
+                @collapsed_lv4=@collapsed_lv3+1
+                node3
+              elsif node2
+                document_structure_check_info(node4,node2)
+                @collapsed_lv4=@collapsed_lv2+1
+                node2
+              elsif node1
+                document_structure_check_info(node4,node1)
+                @collapsed_lv4=@collapsed_lv1+1
+                node1
+              else
+                warning_incorrect_parent_level_or_level(dob.obj)
+                document_structure_check_info(node4,node0,:error)
+                node0
+              end
+              collapsed_level=@collapsed_lv4
+              node,ocn_sp=node4,"h#{ocnh}"
+            elsif ln==5 \
+            or ln=~@md.lv5
+              if not dob.obj =~/~#|-#/
+                ocn_flag=true
+                ocnh5+=1
                 node5="5:#{ocnh5};#{ocn}"
-                parent=if node4
-                  document_structure_check_info(node5,node4)
-                  @collapsed_lv5=@collapsed_lv4+1
-                  node4
-                elsif node3
-                  warning_incorrect_parent_level_or_level(dob.obj)
-                  document_structure_check_info(node5,node3,:error)
-                  @collapsed_lv5=@collapsed_lv3+1
-                  node3
-                elsif node2
-                  warning_incorrect_parent_level_or_level(dob.obj)
-                  document_structure_check_info(node5,node2,:error)
-                  @collapsed_lv5=@collapsed_lv2+1
-                  node2
-                elsif node1
-                  warning_incorrect_parent_level_or_level(dob.obj)
-                  document_structure_check_info(node5,node1,:error)
-                  @collapsed_lv5=@collapsed_lv1+1
-                  node1
-                else
-                  document_structure_check_info(node5,node0,:error)
-                  node0
-                end
-                collapsed_level=@collapsed_lv5
-                node,ocn_sp=node5,"h#{ocnh}"
-              elsif ln==6 \
-              or ln=~@md.lv6; ocnh6+=1
+              else
+                ocn_flag=false
+                node5="5:0;0"
+              end
+              parent=if node4
+                document_structure_check_info(node5,node4)
+                @collapsed_lv5=@collapsed_lv4+1
+                node4
+              elsif node3
+                warning_incorrect_parent_level_or_level(dob.obj)
+                document_structure_check_info(node5,node3,:error)
+                @collapsed_lv5=@collapsed_lv3+1
+                node3
+              elsif node2
+                warning_incorrect_parent_level_or_level(dob.obj)
+                document_structure_check_info(node5,node2,:error)
+                @collapsed_lv5=@collapsed_lv2+1
+                node2
+              elsif node1
+                warning_incorrect_parent_level_or_level(dob.obj)
+                document_structure_check_info(node5,node1,:error)
+                @collapsed_lv5=@collapsed_lv1+1
+                node1
+              else
+                document_structure_check_info(node5,node0,:error)
+                node0
+              end
+              collapsed_level=@collapsed_lv5
+              node,ocn_sp=node5,"h#{ocnh}"
+            elsif ln==6 \
+            or ln=~@md.lv6
+              if not dob.obj =~/~#|-#/
+                ocn_flag=true
+                ocnh6+=1
                 node6="6:#{ocnh6};#{ocn}"
-                parent=if node5
-                  document_structure_check_info(node6,node5)
-                  @collapsed_lv6=@collapsed_lv5+1
-                  node5
-                elsif node4
-                  warning_incorrect_parent_level_or_level(dob.obj)
-                  puts "parent is level 4~ & this level #{dob.lv}
+              else
+                ocn_flag=false
+                node6="6:0;0"
+              end
+              parent=if node5
+                document_structure_check_info(node6,node5)
+                @collapsed_lv6=@collapsed_lv5+1
+                node5
+              elsif node4
+                warning_incorrect_parent_level_or_level(dob.obj)
+                puts "parent is level 4~ & this level #{dob.lv}
 either parent should be level 5~
 or this level should be 5~ rather #{dob.lv}" #level 6
-                  document_structure_check_info(node6,node4,:error)
-                  @collapsed_lv6=@collapsed_lv4+1
-                  node4
-                elsif node3
-                  warning_incorrect_parent_level_or_level(dob.obj)
-                  document_structure_check_info(node6,node3,:error)
-                  @collapsed_lv6=@collapsed_lv3+1
-                  node3
-                elsif node2
-                  warning_incorrect_parent_level_or_level(dob.obj)
-                  document_structure_check_info(node6,node2,:error)
-                  @collapsed_lv6=@collapsed_lv2+1
-                  node2
-                elsif node1
-                  warning_incorrect_parent_level_or_level(dob.obj)
-                  document_structure_check_info(node6,node1,:error)
-                  @collapsed_lv6=@collapsed_lv1+1
-                  node1
-                else
-                  document_structure_check_info(node6,node0,:error)
-                  node0
-                end
-                collapsed_level=@collapsed_lv6
-                node,ocn_sp=node6,"h#{ocnh}"
+                document_structure_check_info(node6,node4,:error)
+                @collapsed_lv6=@collapsed_lv4+1
+                node4
+              elsif node3
+                warning_incorrect_parent_level_or_level(dob.obj)
+                document_structure_check_info(node6,node3,:error)
+                @collapsed_lv6=@collapsed_lv3+1
+                node3
+              elsif node2
+                warning_incorrect_parent_level_or_level(dob.obj)
+                document_structure_check_info(node6,node2,:error)
+                @collapsed_lv6=@collapsed_lv2+1
+                node2
+              elsif node1
+                warning_incorrect_parent_level_or_level(dob.obj)
+                document_structure_check_info(node6,node1,:error)
+                @collapsed_lv6=@collapsed_lv1+1
+                node1
+              else
+                document_structure_check_info(node6,node0,:error)
+                node0
               end
+              collapsed_level=@collapsed_lv6
+              node,ocn_sp=node6,"h#{ocnh}"
+            end
+          else
+            if not dob.obj =~/~#|-#/
+              ocn_flag=true
             else
-              ocno+=1
-              if dob.is==:table
-                ocnt+=1
-                ocn_sp,parent="t#{ocnt}",node
-              elsif dob.is==:code
-                ocnc+=1
-                ocn_sp,parent="c#{ocnc}",node
-              elsif dob.is==:group \
-              || dob.is==:block \
-              || dob.is==:alt \
-              || dob.is==:verse
-                ocng+=1 #group, poem
-                ocn_sp,parent="g#{ocng}",node
-              elsif dob.is==:image #check
-                ocni+=1
-                ocn_sp,parent="i#{ocni}",node
-              else ocnp+=1                                 #paragraph
-                ocn_sp,parent="p#{ocnp}",node
-              end
+              ocn_flag=false
             end
-            if dob.is==:heading
-              dob.ln,dob.node,dob.ocn,dob.odv,dob.osp,dob.parent,dob.lc=ln,node,ocn,ocn_dv,ocn_sp,parent,collapsed_level
+            ocno+=1
+            if dob.is==:table
+              ocnt+=1
+              ocn_sp,parent="t#{ocnt}",node
+            elsif dob.is==:code
+              ocnc+=1
+              ocn_sp,parent="c#{ocnc}",node
+            elsif dob.is==:group \
+            || dob.is==:block \
+            || dob.is==:alt \
+            || dob.is==:verse
+              ocng+=1 #group, poem
+              ocn_sp,parent="g#{ocng}",node
+            elsif dob.is==:image #check
+              ocni+=1
+              ocn_sp,parent="i#{ocni}",node
+            else ocnp+=1                                 #paragraph
+              ocn_sp,parent="p#{ocnp}",node
+            end
+          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
             else
-              if dob.of !=:meta \
-              && dob.of !=:comment \
-              && dob.of !=:layout
-                dob.ocn,dob.odv,dob.osp,dob.parent=ocn,ocn_dv,ocn_sp,parent
+              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.ln,dob.node,dob.ocn,dob.ocn_,dob.odv,dob.osp,dob.parent,dob.lc=ln,node,nil,ocn_flag,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
+              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
               end
             end
-          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.odv,dob.osp=ocn,ocn_dv,ocn_sp
           end
           h
         elsif dob.obj=~/#{Mx[:pa_non_object_no_heading]}/
           dob.obj=dob.obj.gsub(/#{Mx[:pa_non_object_no_heading]}/,'')
           if dob.is==:para
             h={ obj: dob.obj, ocn_: false, ocn: nil, hang: dob.hang, indent: dob.indent, bullet_: dob.bullet_, tags: dob.tags, parent: dob.parent }
-            dob=SiSU_DAL_DocumentStructure::ObjectPara.new.paragraph(h,dob)
+            dob=SiSU_AO_DocumentStructure::ObjectPara.new.paragraph(h,dob)
           elsif dob.is==:heading
             h={ obj: dob.obj, ocn_: false, ocn: nil, toc_: true, parent: dob.parent }
-            dob=SiSU_DAL_DocumentStructure::ObjectHeading.new.heading(h,dob)
+            dob=SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,dob)
           end
         elsif dob.obj=~/#{Mx[:pa_non_object_dummy_heading]}/
           dob.obj=dob.obj.gsub(/#{Mx[:pa_non_object_dummy_heading]}/,'')
           if dob.is==:para
             h={ obj: dob.obj, ocn_: false, ocn: nil, hang: dob.hang, indent: dob.indent, bullet_: dob.bullet_, tags: dob.tags, parent: dob.parent }
-            dob=SiSU_DAL_DocumentStructure::ObjectPara.new.paragraph(h,dob)
+            dob=SiSU_AO_DocumentStructure::ObjectPara.new.paragraph(h,dob)
           elsif dob.is==:heading
             h={ obj: dob.obj, ocn_: false, ocn: nil, toc_: false, parent: dob.parent }
-            dob=SiSU_DAL_DocumentStructure::ObjectHeading.new.heading(h,dob)
+            dob=SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,dob)
           end
         else dob
         end
@@ -1198,7 +1255,7 @@ or this level should be 5~ rather #{dob.lv}" #level 6
       when '6'; 9
       end
       h={ tag: tag, node: o[:node], lv: o[:lv], ln: ln, status: o[:status] }
-      SiSU_DAL_DocumentStructure::ObjectStructure.new.xml_dom(h) #downstream code utilise else ignore like comments
+      SiSU_AO_DocumentStructure::ObjectStructure.new.xml_dom(h) #downstream code utilise else ignore like comments
     end
     def tag_open(o,tag)
       t={ lv: tag[o.ln], node: o.node, status: 'open' }
diff --git a/lib/sisu/v5/dal_endnotes.rb b/lib/sisu/v5/ao_endnotes.rb
index 407dc1ff..981c97f6 100644
--- a/lib/sisu/v5/dal_endnotes.rb
+++ b/lib/sisu/v5/ao_endnotes.rb
@@ -50,7 +50,7 @@
 
  * 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/dal_doc_endnotes.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/ao_doc_endnotes.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
@@ -59,7 +59,7 @@
  ** Description: system environment, resource control and configuration details
 
 =end
-module SiSU_DAL_Endnotes
+module SiSU_AO_Endnotes
   class Endnotes
     def initialize(md,data,endnote_array=nil)
       @md,@data,@endnote_array=md,data,endnote_array
@@ -82,7 +82,7 @@ module SiSU_DAL_Endnotes
         && 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')          # required 2003w31
+            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(' ')
diff --git a/lib/sisu/v5/dal_expand_insertions.rb b/lib/sisu/v5/ao_expand_insertions.rb
index e43dd3af..44ae1f60 100644
--- a/lib/sisu/v5/dal_expand_insertions.rb
+++ b/lib/sisu/v5/ao_expand_insertions.rb
@@ -50,7 +50,7 @@
 
  * 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/dal_expand_insertions.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/ao_expand_insertions.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
@@ -59,7 +59,7 @@
  ** Description: system environment, resource control and configuration details
 
 =end
-module SiSU_DAL_Insertions
+module SiSU_AO_Insertions
   class Insertions
     def initialize(md,data)
       @md,@data=md,data
diff --git a/lib/sisu/v5/dal_hash_digest.rb b/lib/sisu/v5/ao_hash_digest.rb
index 9f620aa2..e1cc840c 100644
--- a/lib/sisu/v5/dal_hash_digest.rb
+++ b/lib/sisu/v5/ao_hash_digest.rb
@@ -50,7 +50,7 @@
 
  * 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/dal_hash_digest.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/ao_hash_digest.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
@@ -59,7 +59,7 @@
  ** Description: system environment, resource control and configuration details
 
 =end
-module SiSU_DAL_Hash
+module SiSU_AO_Hash
   require_relative 'shared_markup_alt.rb'               #shared_markup_alt.rb
   class ObjectDigest
     def initialize(md,data,env=nil)
@@ -96,7 +96,7 @@ module SiSU_DAL_Hash
         end
       end
       @tuned_file=@tuned_file.flatten
-      #use md5 or to create hash of each dal object including ocn, & add into to each dal object
+      #use md5 or to create hash of each ao object including ocn, & add into to each ao object
     end
     def endnote_digest(data)
       t_o_bit=[]
@@ -143,7 +143,7 @@ module SiSU_DAL_Hash
       end
       t_o #KEEP intact
     end
-    def strip_clean_extra_spaces(s)                                            # dal output tuned
+    def strip_clean_extra_spaces(s)                                            # ao output tuned
       s=s.dup
       s=s.gsub(/[ ]+([,.;:?](?:$|\s))/,'\1') unless s =~/#{Mx[:en_a_o]}|#{Mx[:en_b_o]}/
       s=s.gsub(/ [ ]+/,' ').
diff --git a/lib/sisu/v5/dal_idx.rb b/lib/sisu/v5/ao_idx.rb
index be8a0211..94e3aff6 100644
--- a/lib/sisu/v5/dal_idx.rb
+++ b/lib/sisu/v5/ao_idx.rb
@@ -50,7 +50,7 @@
 
  * 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/dal_idx.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/ao_idx.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
@@ -59,7 +59,7 @@
  ** Description: system environment, resource control and configuration details
 
 =end
-module SiSU_DAL_BookIndex
+module SiSU_AO_BookIndex
   class BookIndex
     def initialize(md,data,env=nil)
       @md,@data,@env=md,data,env
@@ -138,15 +138,15 @@ module SiSU_DAL_BookIndex
       idx={}
       idx[:sst_rel_html_seg],idx[:sst_rel],idx[:html],idx[:xhtml]=[],[],[],[]
       h={obj: Mx[:br_page]}
-      o=SiSU_DAL_DocumentStructure::ObjectLayout.new.break(h)
+      o=SiSU_AO_DocumentStructure::ObjectLayout.new.break(h)
       idx[:sst_rel_html_seg] << o
       idx[:sst_rel] << o
       h={lv: '2', name: 'index', obj: "Index"}
-      o=SiSU_DAL_DocumentStructure::ObjectHeading.new.heading(h)
+      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]}"}
-      o=SiSU_DAL_DocumentStructure::ObjectHeading.new.heading(h)
+      o=SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
       idx[:sst_rel_html_seg] << o
       idx[:sst_rel] << o
       alph=%W[9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z]
diff --git a/lib/sisu/v5/dal_images.rb b/lib/sisu/v5/ao_images.rb
index 33a5e627..4354dfa9 100644
--- a/lib/sisu/v5/dal_images.rb
+++ b/lib/sisu/v5/ao_images.rb
@@ -50,7 +50,7 @@
 
  * 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/dal_images.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/ao_images.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
@@ -59,7 +59,7 @@
  ** Description: system environment, resource control and configuration details
 
 =end
-module SiSU_DAL_Images
+module SiSU_AO_Images
   class Images
     #require 'RMagick'
     #include Magick
diff --git a/lib/sisu/v5/dal_metadata.rb b/lib/sisu/v5/ao_metadata.rb
index 1fa5619c..8d017769 100644
--- a/lib/sisu/v5/dal_metadata.rb
+++ b/lib/sisu/v5/ao_metadata.rb
@@ -50,7 +50,7 @@
 
  * 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/dal_metadata.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/ao_metadata.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
@@ -59,7 +59,7 @@
  ** Description: system environment, resource control and configuration details
 
 =end
-module SiSU_DAL_Metadata
+module SiSU_AO_Metadata
   class Metadata
     def initialize(md,metad)
       @md,@metadata=md,metad
@@ -69,11 +69,11 @@ module SiSU_DAL_Metadata
     end
     def make_para(obj,ocn)
       h={ obj: obj, ocn: 0 }
-      SiSU_DAL_DocumentStructure::ObjectPara.new.paragraph(h)
+      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 }
-      SiSU_DAL_DocumentStructure::ObjectHeading.new.heading(h)
+      SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
     end
     def metadata
     end
diff --git a/lib/sisu/v5/dal_misc_arrange.rb b/lib/sisu/v5/ao_misc_arrange.rb
index e6cc72db..8f7acbc4 100644
--- a/lib/sisu/v5/dal_misc_arrange.rb
+++ b/lib/sisu/v5/ao_misc_arrange.rb
@@ -50,7 +50,7 @@
 
  * 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/dal_misc_arrange.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/ao_misc_arrange.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
@@ -59,7 +59,7 @@
  ** Description: system environment, resource control and configuration details
 
 =end
-module SiSU_DAL_MiscArrangeText
+module SiSU_AO_MiscArrangeText
   class SI
     def initialize(md,data)
       @md,@data=md,data
diff --git a/lib/sisu/v5/dal_numbering.rb b/lib/sisu/v5/ao_numbering.rb
index 96f4134b..00afdfa5 100644
--- a/lib/sisu/v5/dal_numbering.rb
+++ b/lib/sisu/v5/ao_numbering.rb
@@ -50,7 +50,7 @@
 
  * 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/dal_numbering.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/ao_numbering.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
@@ -59,7 +59,7 @@
  ** Description: system environment, resource control and configuration details
 
 =end
-module SiSU_DAL_Numbering
+module SiSU_AO_Numbering
   class Numbering
     attr_accessor :obj,:osp,:ocn,:lv,:name,:index,:comment
     def initialize(md,data)
@@ -142,7 +142,7 @@ module SiSU_DAL_Numbering
       data=data.compact
       data.each do |dob| #@md.seg_names << [additions to segment names]
         title_no=nil
-        dob=SiSU_DAL_DocumentStructureExtract::Structure.new(@md,dob).structure_markup #must happen earlier, node info etc. require
+        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 \
@@ -232,11 +232,11 @@ module SiSU_DAL_Numbering
       @tuned_file=@tuned_file.flatten
     end
     def ocn(data)                                                                      #and auto segment numbering increment
-      @tuned_file=SiSU_DAL_DocumentStructureExtract::OCN.new(@md,data).ocn
+      @tuned_file=SiSU_AO_DocumentStructureExtract::OCN.new(@md,data).ocn
       @tuned_file
     end
     def xml(data)
-      @tuned_file=SiSU_DAL_DocumentStructureExtract::XML.new(@md,data).dom
+      @tuned_file=SiSU_AO_DocumentStructureExtract::XML.new(@md,data).dom
       @tuned_file
     end
     def minor_numbering(data)                                                          #and auto segment numbering increment
@@ -354,11 +354,11 @@ module SiSU_DAL_Numbering
           m=dob.ln.to_s
           dob_tmp=[]
           if @md.pagenew.inspect =~/#{m}/
-            dob_tmp << SiSU_DAL_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_DAL_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_DAL_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
diff --git a/lib/sisu/v5/dal_syntax.rb b/lib/sisu/v5/ao_syntax.rb
index 1e1d8542..22e0124c 100644
--- a/lib/sisu/v5/dal_syntax.rb
+++ b/lib/sisu/v5/ao_syntax.rb
@@ -50,7 +50,7 @@
 
  * 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/dal_syntax.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/ao_syntax.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
@@ -59,7 +59,7 @@
  ** Description: Syntax for markup, input markup syntaxes, determined here
 
 =end
-module SiSU_DAL_Syntax
+module SiSU_AO_Syntax
   class Words
     def initialize(line,md,mkp)
       @line,@md,@mkp=line,md,mkp
diff --git a/lib/sisu/v5/concordance.rb b/lib/sisu/v5/concordance.rb
index 3ad394c7..3bb313d4 100644
--- a/lib/sisu/v5/concordance.rb
+++ b/lib/sisu/v5/concordance.rb
@@ -113,8 +113,8 @@ module SiSU_Concordance
     private
     class DocTitle
       include SiSU_Viz
-      #revisit, both requires (html & shared_xml) needed for stand alone operation (sisu -w [filename])
-      require_relative 'shared_xml'                     # shared_xml.rb
+      #revisit, both requires (html & xml_shared) needed for stand alone operation (sisu -w [filename])
+      require_relative 'xml_shared'                     # xml_shared.rb
       require_relative 'html'                           # html.rb
       def initialize(particulars)
         @particulars,@md=particulars,particulars.md
@@ -202,7 +202,7 @@ WOK
       def initialize(particulars)
         @particulars=particulars
         begin
-          @env,@md,@dal_array=particulars.env,particulars.md,particulars.dal_array
+          @env,@md,@ao_array=particulars.env,particulars.md,particulars.ao_array
           @file=SiSU_Env::FileOp.new(@md)
           @freq=Hash.new(0)
           @dp=@@dp ||=SiSU_Env::InfoEnv.new.digest.pattern
@@ -256,7 +256,7 @@ WOK
       def map_para
         @seg,ocn=nil,nil
         @word_map={}
-        @dal_array.each do |line|
+        @ao_array.each do |line|
           if defined? line.ocn \
           and line.ocn.to_s =~/\d/
             if (line.is ==:heading \
diff --git a/lib/sisu/v5/conf.rb b/lib/sisu/v5/conf.rb
index 9418ff21..57e9614b 100644
--- a/lib/sisu/v5/conf.rb
+++ b/lib/sisu/v5/conf.rb
@@ -161,7 +161,7 @@ module SiSU_Initialize
     end
     def trang_rnc_model_output_sax
       s=@suffix
-      rnc_src=@env.processing_path.dal + '/sax.' + s[:rnc]
+      rnc_src=@env.processing_path.ao + '/sax.' + s[:rnc]
       rnc_file=@path[:rnc] + '/' + @rxng.rnc_name.output_sax
       rng_file=@path[:rng] + '/' + @rxng.rng_name.output_sax
       xsd_file=@path[:xsd] + '/' + @rxng.xsd_name.output_sax
@@ -183,7 +183,7 @@ module SiSU_Initialize
     end
     def trang_rnc_model_output_dom
       s=@suffix
-      rnc_src=@env.processing_path.dal + '/dom.' + s[:rnc]
+      rnc_src=@env.processing_path.ao + '/dom.' + s[:rnc]
       rnc_file=@path[:rnc] + '/' + @rxng.rnc_name.output_dom
       rng_file=@path[:rng] + '/' + @rxng.rng_name.output_dom
       xsd_file=@path[:xsd] + '/' + @rxng.xsd_name.output_dom
@@ -205,7 +205,7 @@ module SiSU_Initialize
     end
     def trang_rnc_model_output_xhtml
       s=@suffix
-      rnc_src=@env.processing_path.dal + '/xhtml.' + s[:rnc]
+      rnc_src=@env.processing_path.ao + '/xhtml.' + s[:rnc]
       rnc_file=@path[:rnc] + '/' + @rxng.rnc_name.output_xhtml
       rng_file=@path[:rng] + '/' + @rxng.rng_name.output_xhtml
       xsd_file=@path[:xsd] + '/' + @rxng.xsd_name.output_xhtml
@@ -226,7 +226,7 @@ module SiSU_Initialize
       end
     end
     def trang_rnc_model_input_sax
-      rnc_file=@env.processing_path.dal + '/sax.rnc'
+      rnc_file=@env.processing_path.ao + '/sax.rnc'
       dtd_file=@path[:xsd] + '/' + @rxng.rng_name.input_sax
       rnc=File.new(rnc_file,'w')
       rnc << @rxng.rnc_model_output_sax
@@ -235,7 +235,7 @@ module SiSU_Initialize
       schema.relaxng(@opt.cmd)
     end
     def trang_rnc_model_input_dom
-      rnc_file=@env.processing_path.dal + '/dom.rnc'
+      rnc_file=@env.processing_path.ao + '/dom.rnc'
       dtd_file=@path[:xsd] + '/' + @rxng.rng_name.input_dom
       rnc=File.new(rnc_file,'w')
       rnc << @rxng.rnc_model_output_dom
@@ -244,7 +244,7 @@ module SiSU_Initialize
       schema.relaxng(@opt.cmd)
     end
     def trang_rnc_model_input_node
-      rnc_file=@env.processing_path.dal + '/node.rnc'
+      rnc_file=@env.processing_path.ao + '/node.rnc'
       dtd_file=@path[:xsd] + '/' + @rxng.rng_name.input_node
       rnc=File.new(rnc_file,'w')
       rnc << @rxng.rnc_model_input_node
diff --git a/lib/sisu/v5/constants.rb b/lib/sisu/v5/constants.rb
index a21f01b7..da9858f2 100644
--- a/lib/sisu/v5/constants.rb
+++ b/lib/sisu/v5/constants.rb
@@ -64,6 +64,10 @@
 YEAR='2013'
 Sfx={
   txt:                       '.txt',
+  txt_textile:               '.textile',
+  txt_asciidoc:              '.asciidoc.txt',
+  txt_markdown:              '.md',
+  txt_rst:                   '.rst',
   html:                      '.html',
   xhtml:                     '.xhtml',
   xml:                       '.xml',
@@ -72,6 +76,10 @@ Sfx={
   xml_scaffold:              '.scaffold.xml',
   xml_scaffold_structure_sisu:     '.scaffold.sisu.xml',
   xml_scaffold_structure_collapse: '.scaffold.collapse.xml',
+  xml_docbook:               '.docbook.xml',
+  xml_docbook_article:       '.article.docbook.xml',
+  xml_docbook_book:          '.book.docbook.xml',
+  xml_fictionbook:           '.fb2',
   epub:                      '.epub',
   epub_xhtml:                '.xhtml',
   odt:                       '.odt',
diff --git a/lib/sisu/v5/db_import.rb b/lib/sisu/v5/db_import.rb
index 6edb0f99..dc73bbf5 100644
--- a/lib/sisu/v5/db_import.rb
+++ b/lib/sisu/v5/db_import.rb
@@ -64,7 +64,7 @@ module SiSU_DbImport
   require_relative 'db_columns'                         # db_columns.rb
   require_relative 'db_load_tuple'                      # db_load_tuple.rb
   require_relative 'db_sqltxt'                          # db_sqltxt.rb
-  require_relative 'shared_html_lite'                   # shared_html_lite.rb
+  require_relative 'html_lite_shared'                   # html_lite_shared.rb
   require 'sqlite3'
   class Import < SiSU_DbText::Prepare
     include SiSU_Param
@@ -76,7 +76,7 @@ module SiSU_DbImport
       @opt,@conn,@file_maint,@sql_type=opt,conn,file_maint,sql_type
       @cX=SiSU_Screen::Ansi.new(@opt.act[:color_state][:set]).cX
       @env=SiSU_Env::InfoEnv.new(@opt.fns)
-      @dal="#{@env.processing_path.dal}"
+      @dal="#{@env.processing_path.ao}"
       @fnb=if @opt.fns.empty? \
       or @opt.cmd.empty?
         ''
@@ -121,8 +121,8 @@ module SiSU_DbImport
       @@dl ||=SiSU_Env::InfoEnv.new.digest.length
     end
     def marshal_load
-      require_relative 'dal'                            # dal.rb
-      @dal_array=SiSU_DAL::Source.new(@opt).get            # dal file drawn here
+      require_relative 'ao'                               # ao.rb
+      @ao_array=SiSU_AO::Source.new(@opt).get             # ao file drawn here
       if (@opt.act[:verbose][:set]==:on \
       || @opt.act[:verbose_plus][:set]==:on \
       || @opt.act[:maintenance][:set]==:on)
@@ -142,8 +142,8 @@ module SiSU_DbImport
       if not file_exist
         t_d=[]                                                              # transaction_data
         t_d << db_import_metadata
-        t_d << db_import_documents(@dal_array)
-        t_d << db_import_urls(@dal_array,@fnc)                              #import OID on/off
+        t_d << db_import_documents(@ao_array)
+        t_d << db_import_urls(@ao_array,@fnc)                              #import OID on/off
         t_d=t_d.flatten
         if (@opt.act[:verbose_plus][:set]==:on \
         || @opt.act[:maintenance][:set]==:on)
@@ -283,12 +283,12 @@ module SiSU_DbImport
       tuple=t.tuple
       tuple
     end
-    def db_import_documents(dal_array)                                     #% import documents - populate main database table, import into substantive database tables (tuple)
+    def db_import_documents(ao_array)                                     #% import documents - populate main database table, import into substantive database tables (tuple)
       begin
         @col[:tid]=@@id_t
         @en,@en_ast,@en_pls,@tuple_array=[],[],[],[]
         @col[:en_a],@col[:en_z]=nil,nil
-        dal_array.each do |data|
+        ao_array.each do |data|
           data.obj.gsub!(/#{Mx[:fa_bold_o]}(.+?)#{Mx[:fa_bold_c]}/,'\1')
           data.obj.gsub!(/#{Mx[:fa_italics_o]}(.+?)#{Mx[:fa_italics_c]}/,'\1')
           data.obj.gsub!(/#{Mx[:fa_underscore_o]}(.+?)#{Mx[:fa_underscore_c]}/,'\1')
diff --git a/lib/sisu/v5/dbi.rb b/lib/sisu/v5/dbi.rb
index e59a09b7..6a40d3ce 100644
--- a/lib/sisu/v5/dbi.rb
+++ b/lib/sisu/v5/dbi.rb
@@ -66,7 +66,7 @@ module  SiSU_DBI
     include SiSU_Param
   require_relative 'db_dbi'                             # db_dbi.rb
     include SiSU_DbDBI
-  require_relative 'shared_html_lite'                   # shared_html_lite.rb
+  require_relative 'html_lite_shared'                   # html_lite_shared.rb
     include SiSU_FormatShared
   class SQL
     def initialize(opt)
diff --git a/lib/sisu/v5/dbi_discrete.rb b/lib/sisu/v5/dbi_discrete.rb
index 957009b1..95fb9ce3 100644
--- a/lib/sisu/v5/dbi_discrete.rb
+++ b/lib/sisu/v5/dbi_discrete.rb
@@ -66,7 +66,7 @@ module  SiSU_DBI_Discrete                               #% database building
     include SiSU_Param
   require_relative 'db_dbi'                             # db_dbi.rb
     include SiSU_DbDBI
-  require_relative 'shared_html_lite'                   # shared_html_lite.rb
+  require_relative 'html_lite_shared'                   # html_lite_shared.rb
     include SiSU_FormatShared
   require 'fileutils'
     include FileUtils::Verbose
diff --git a/lib/sisu/v5/digests.rb b/lib/sisu/v5/digests.rb
index e142ff11..0afa7378 100644
--- a/lib/sisu/v5/digests.rb
+++ b/lib/sisu/v5/digests.rb
@@ -75,7 +75,7 @@ module SiSU_DigestView
     end
     def read
       begin
-        @env,@md,@dal_array=@particulars.env,@particulars.md,@particulars.dal_array
+        @env,@md,@ao_array=@particulars.env,@particulars.md,@particulars.ao_array
         unless @opt.act[:quiet][:set]==:on
           tool=(@opt.act[:verbose][:set]==:on \
           || @opt.act[:verbose_plus][:set]==:on \
@@ -107,7 +107,7 @@ module SiSU_DigestView
       @@description,@@ds[:digests],@@ds[:tree],@@ds[:summary],@@sc_info=[],[],[],[],[]
       def initialize(particulars) #data='',md='')
         @particulars=particulars
-        @data,@env,@md=@particulars.dal_array,@particulars.env,@particulars.md
+        @data,@env,@md=@particulars.ao_array,@particulars.env,@particulars.md
         SiSU_Env::FileOp.new(@md).mkdir
         @@dg ||=@env.digest.type
         @@dl ||=@env.digest.length
@@ -120,7 +120,7 @@ module SiSU_DigestView
       def songsheet
         @@description,@@ds[:digests],@@ds[:tree],@@ds[:summary],@@sc_info=[],[],[],[],[]
         message_digest
-        dal_structure
+        ao_structure
         supplementary
         output
       end
@@ -132,11 +132,11 @@ module SiSU_DigestView
         puts f if @md.opt.act[:verbose_plus][:set]==:on
         @@ds[:digests] << f + "\n"
       end
-      def dal_structure_tree(f,e='')
+      def ao_structure_tree(f,e='')
         puts f + e.to_s if @md.opt.act[:verbose_plus][:set]==:on
         @@ds[:tree] << f << e
       end
-      def dal_structure_summary(f,e='')
+      def ao_structure_summary(f,e='')
         puts f + e.to_s if @md.opt.act[:verbose_plus][:set]==:on
         @@ds[:summary] << f << e
       end
@@ -302,7 +302,7 @@ module SiSU_DigestView
         description("Document Digests\n")
         description(a)
       end
-      def dal_structure
+      def ao_structure
         data=@data
         endnotes=nil
         data.each do |t_o|
@@ -330,8 +330,8 @@ module SiSU_DigestView
         end
         l=Hash.new(0)
         ocn=nil
-        dal_structure_tree("------------\n")
-        dal_structure_tree("document structure[*]\n")
+        ao_structure_tree("------------\n")
+        ao_structure_tree("document structure[*]\n")
         data.each do |t_o|
           if t_o.is==:heading
             x=case t_o.ln
@@ -351,11 +351,11 @@ module SiSU_DigestView
             end
           end
           ocn=t_o.ocn if defined? t_o.ocn and t_o.is !=:heading_insert
-          dal_structure_tree("#{x}\n") if x and not x.empty?
+          ao_structure_tree("#{x}\n") if x and not x.empty?
         end
-        dal_structure_tree("  [*] heading levels\n")
-        dal_structure_summary("------------\n")
-        dal_structure_summary("document structure[*]\n")
+        ao_structure_tree("  [*] heading levels\n")
+        ao_structure_summary("------------\n")
+        ao_structure_summary("document structure[*]\n")
         [0,1,2,3,4,5,6].each do |y|
           v=case y
           when 1; ':A'
@@ -365,11 +365,11 @@ module SiSU_DigestView
           when 5; '2 '
           when 6; '3 '
           end
-          dal_structure_summary("#{v}            = #{l[y]}\n") if l[y] > 0
+          ao_structure_summary("#{v}            = #{l[y]}\n") if l[y] > 0
         end
-        dal_structure_summary("objects (ocn) = #{ocn}\n")
-        dal_structure_summary("endnotes      = #{endnotes}\n")
-        dal_structure_summary("  [*] number of headers (@) and of each heading level (:A to :C and 1 to 3)\n")
+        ao_structure_summary("objects (ocn) = #{ocn}\n")
+        ao_structure_summary("endnotes      = #{endnotes}\n")
+        ao_structure_summary("  [*] number of headers (@) and of each heading level (:A to :C and 1 to 3)\n")
       end
       def supplementary
         if defined? @md.sc_number \
diff --git a/lib/sisu/v5/git.rb b/lib/sisu/v5/git.rb
index 92322b7c..7a69a187 100644
--- a/lib/sisu/v5/git.rb
+++ b/lib/sisu/v5/git.rb
@@ -62,7 +62,7 @@
 module SiSU_Git
   require_relative 'param'                              # param.rb
   require_relative 'sysenv'                             # sysenv.rb
-  require_relative 'dal'                                # dal.rb
+  require_relative 'ao'                                 # ao.rb
   class Source
     def initialize(opt)
       @opt=opt
@@ -93,7 +93,7 @@ module SiSU_Git
         video:     git_path_fnb + '/' + Gt[:sisupod] + '/' + Gt[:video],
         conf:      git_path_fnb + '/' + Gt[:sisupod] + '/' + Gt[:conf]
       }
-      SiSU_DAL::Source.new(@opt).read                                         # -m
+      SiSU_AO::Source.new(@opt).read                                         # -m
     end
     def create_file_structure_git
       make_dir_fnb
@@ -190,9 +190,9 @@ module SiSU_Git
       def locate_parse_file
         composite_src=@opt.fns=~/\.ssm$/ ? true : false
         if composite_src \
-        and not @opt.act[:dal][:set]==:on
+        and not @opt.act[:ao][:set]==:on
           ##SiSU_Assemble::Composite.new(@opt).read
-          #SiSU_DAL::Source.new(@opt).read                                         # -m
+          #SiSU_AO::Source.new(@opt).read                                         # -m
           "#{@env.processing_path.composite_file}/#{@opt.fnb}.ssm.sst"
         elsif composite_src
           "#{@env.processing_path.composite_file}/#{@opt.fnb}.ssm.sst"
diff --git a/lib/sisu/v5/html.rb b/lib/sisu/v5/html.rb
index f1abe6c0..7a1c4b60 100644
--- a/lib/sisu/v5/html.rb
+++ b/lib/sisu/v5/html.rb
@@ -162,8 +162,8 @@ module SiSU_HTML
       end
       def tuned_file_instructions
         @tell=SiSU_Screen::Ansi.new(@md.opt.act[:color_state][:set])
-        dal_array=@particulars.dal_array # dal file drawn here
-        tuned_file_array=SiSU_HTML_Tune::Tune.new(dal_array,@md).songsheet
+        ao_array=@particulars.ao_array # ao file drawn here
+        tuned_file_array=SiSU_HTML_Tune::Tune.new(ao_array,@md).songsheet
         tuned_file_array
       end
     end
diff --git a/lib/sisu/v5/html_format.rb b/lib/sisu/v5/html_format.rb
index c087f1ec..db9fb449 100644
--- a/lib/sisu/v5/html_format.rb
+++ b/lib/sisu/v5/html_format.rb
@@ -93,7 +93,7 @@ module SiSU_HTML_Format
   end
   class HeadInformation
     require_relative 'css'                              # css.rb
-    require_relative 'shared_xml'                       # shared_xml.rb
+    require_relative 'xml_shared'                       # xml_shared.rb
     include SiSU_Viz
     attr_reader :md,:rdf,:vz
     def initialize(md)
@@ -904,7 +904,7 @@ WOK
         @lnk_url        =t_o[:lnk_url]        || nil
         @lnk_txt        =t_o[:lnk_txt]        || nil
         @format         =t_o[:format]         || nil
-      elsif t_o.class.inspect =~/^(?:#<)?SiSU_DAL_DocumentStructure/
+      elsif t_o.class.inspect =~/^(?:#<)?SiSU_AO_DocumentStructure/
         @dob=t_o if defined? t_o.is
         @named=nametags_seg(@dob)
         @txt=((defined? t_o.obj) ? t_o.obj : nil)
diff --git a/lib/sisu/v5/shared_html_lite.rb b/lib/sisu/v5/html_lite_shared.rb
index e46510ea..20e07f8c 100644
--- a/lib/sisu/v5/shared_html_lite.rb
+++ b/lib/sisu/v5/html_lite_shared.rb
@@ -50,7 +50,7 @@
 
  * 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/shared_html_lite.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/html_lite_shared.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
diff --git a/lib/sisu/v5/html_scroll.rb b/lib/sisu/v5/html_scroll.rb
index 3ac75aaa..f525b462 100644
--- a/lib/sisu/v5/html_scroll.rb
+++ b/lib/sisu/v5/html_scroll.rb
@@ -60,7 +60,7 @@
 
 =end
 module SiSU_HTML_Scroll
-  require_relative 'shared_html'                        # shared_html.rb
+  require_relative 'html_shared'                        # html_shared.rb
   require_relative 'html'                               # html.rb
   require_relative 'shared_metadata'                    # shared_metadata.rb
   require_relative 'html_promo'                         # html_promo.rb
diff --git a/lib/sisu/v5/html_segments.rb b/lib/sisu/v5/html_segments.rb
index 79dda0e2..d6b341ac 100644
--- a/lib/sisu/v5/html_segments.rb
+++ b/lib/sisu/v5/html_segments.rb
@@ -60,7 +60,7 @@
 
 =end
 module SiSU_HTML_Seg
-  require_relative 'shared_html'                        # shared_html.rb
+  require_relative 'html_shared'                        # html_shared.rb
   require_relative 'html'                               # html.rb
   require_relative 'html_promo'                         # html_promo.rb
   require_relative 'shared_metadata'                    # shared_metadata.rb
diff --git a/lib/sisu/v5/shared_html.rb b/lib/sisu/v5/html_shared.rb
index 84c89ecf..63a8964e 100644
--- a/lib/sisu/v5/shared_html.rb
+++ b/lib/sisu/v5/html_shared.rb
@@ -50,7 +50,7 @@
 
  * 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/shared_html.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/html_shared.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
diff --git a/lib/sisu/v5/hub.rb b/lib/sisu/v5/hub.rb
index 2e9092ff..f09bd832 100644
--- a/lib/sisu/v5/hub.rb
+++ b/lib/sisu/v5/hub.rb
@@ -280,14 +280,14 @@ module SiSU
           Dir.chdir(@opt.pth) #watch
         end
         @env=SiSU_Env::InfoEnv.new(@opt.fns)
-        if @opt.act[:dal][:set]==:on                   #% --dal, -m
+        if @opt.act[:ao][:set]==:on                   #% --ao --dal, -m
           unless @opt.act[:po4a][:set]==:on            # --po4a, -P
             if @opt.fno =~ /\.ssm$/
               require_relative 'composite'             # composite.rb #pre-processing
               SiSU_Assemble::Composite.new(@opt).read
             end
-            require_relative 'dal'                     # -m     dal.rb
-            SiSU_DAL::Source.new(@opt).read
+            require_relative 'ao'                      # -m     ao.rb
+            SiSU_AO::Source.new(@opt).read
           end
         end
         if @opt.act[:qrcode][:set]==:on                #% --qrcode, -Q
@@ -299,8 +299,24 @@ module SiSU
           SiSU_DigestView::Source.new(@opt).read
         end
         if @opt.act[:txt][:set]==:on                   #% --txt, -t -a
-          require_relative 'plaintext'                 #  plaintext.rb
-          SiSU_Plaintext::Source.new(@opt).read
+          require_relative 'txt_plain'                 #  txt_plain.rb
+          SiSU_Txt_Plain::Source.new(@opt).read
+        end
+        if @opt.act[:txt_textile][:set]==:on           #% --textile
+          require_relative 'txt_textile'               #  txt_textile.rb
+          SiSU_Txt_Textile::Source.new(@opt).read
+        end
+        if @opt.act[:txt_asciidoc][:set]==:on          #% --asciidoc
+          require_relative 'txt_asciidoc'              #  txt_asciidoc.rb
+          SiSU_Txt_asciiDoc::Source.new(@opt).read
+        end
+        if @opt.act[:txt_markdown][:set]==:on          #% --markdown
+          require_relative 'txt_markdown'              #  txt_markdown.rb
+          SiSU_Txt_Markdown::Source.new(@opt).read
+        end
+        if @opt.act[:txt_rst][:set]==:on               #% --rst, --rest
+          require_relative 'txt_rst'                   #  txt_rst.rb
+          SiSU_Txt_rST::Source.new(@opt).read
         end
         if @opt.act[:html][:set]==:on                  #% --html, -h -H
           require_relative 'html'                      #  html.rb
@@ -320,12 +336,12 @@ module SiSU
           SiSU_Concordance::Source.new(@opt).read
         end
         if @opt.act[:epub][:set]==:on                  #% --epub, -e
-          require_relative 'epub'                      #  epub.rb
-          SiSU_EPUB::Source.new(@opt).read
+          require_relative 'xhtml_epub2'               # xhtml_epub2.rb
+          SiSU_XHTML_EPUB2::Source.new(@opt).read
         end
         if @opt.act[:odt][:set]==:on                   #% --odt, -o opendocument
-          require_relative 'odf'                       #  odf.rb
-          SiSU_ODF::Source.new(@opt).read
+          require_relative 'xml_odf_odt'               #  xml_odf_odt.rb
+          SiSU_XML_ODF_ODT::Source.new(@opt).read
         end
         if @opt.act[:xhtml][:set]==:on                 #% --xhtml, -b xhtml
           require_relative 'xhtml'                     #  xhtml.rb
@@ -339,8 +355,16 @@ module SiSU
           require_relative 'xml_scaffold_structure_collapsed' # xml_scaffold_structure_collapsed.rb
           SiSU_XML_Scaffold_Structure_Collapse::Source.new(@opt).read
         end
+        if @opt.act[:xml_docbook_book][:set]==:on      #% --xml-docbook
+          require_relative 'xml_docbook5'              # xml_docbook5.rb
+          SiSU_XML_Docbook_Book::Source.new(@opt).read
+        end
+        if @opt.act[:xml_fictionbook][:set]==:on       #% --xml-fictionbook
+          require_relative 'xml_fictionbook2'          # xml_fictionbook2.rb
+          SiSU_XML_Fictionbook::Source.new(@opt).read
+        end
         if @opt.act[:xml_sax][:set]==:on               #% --xml-sax, -x xml sax type
-          require_relative 'xml'                       #  xml.rb
+          require_relative 'xml_sax'                   #  xml_sax.rb
           SiSU_XML_SAX::Source.new(@opt).read
         end
         if @opt.act[:xml_dom][:set]==:on               #% --xml-dom, -X xml dom type
@@ -391,12 +415,12 @@ module SiSU
       or  @opt.act[:sisupod][:set]==:on \
       or  @opt.act[:git][:set]==:on
         begin
-          require_relative 'shared_sisupod_source'
+          require_relative 'src_shared'
           OptionLoopFiles.new(@opt).loop_files_on_given_option do
             SiSU_Source::SiSUpodSource.new(@opt).read
           end
           if @opt.act[:share_source][:set]==:on
-            require_relative 'share_src'               # -s     share_src.rb
+            require_relative 'src_share'               # -s     src_share.rb
             begin
             ensure
               OptionLoopFiles.new(@opt).loop_files_on_given_option_bundle do
@@ -405,7 +429,7 @@ module SiSU
             end
           end
           if @opt.act[:sisupod][:set]==:on             #% --sisupod, -S make sisupod
-            require_relative 'sisupod_make'            # -S     sisupod_make.rb
+            require_relative 'src_sisupod_make'        # -S     src_sisupod_make.rb
             begin
             ensure
               OptionLoopFiles.new(@opt).loop_files_on_given_option_bundle do
@@ -523,8 +547,13 @@ module SiSU
       SiSU_Env::InfoProcessingFlag.new
       if @opt.act[:version_info][:set]==:on            #% version information
         SiSU_Env::InfoAbout.new(@opt).sisu_version
+        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
+        end
       end
-      if @opt.act[:dal][:set]==:on \
+      if @opt.act[:ao][:set]==:on \
       or @opt.act[:maintenance][:set]==:on             #% --maintenance, -m for -C
         path={}
         path[:css]=@@env.path.output + '/_sisu/css'
@@ -576,7 +605,7 @@ module SiSU
       if @opt.act[:webrick][:set]==:on                 #% --webrick, -W webrick
         SiSU::Operations.new(@opt).webrick
       end
-      if @opt.act[:dal][:set]==:on
+      if @opt.act[:ao][:set]==:on
         @retry_count= -1
         begin
           @get_s,@get_p,@get_pl=[],[],[]
@@ -628,10 +657,14 @@ module SiSU
       and @opt.mod.join(';') =~/--(?:createdb|init(?:ialize)?|create(?:all)?|createtables|recreate|drop(?:all))/)
         :false
       else
-        (@opt.act[:dal][:set]==:on \
+        (@opt.act[:ao][:set]==:on \
         || @opt.act[:manpage][:set]==:on \
         || @opt.act[:texinfo][:set]==:on \
         || @opt.act[:txt][:set]==:on \
+        || @opt.act[:txt_textile][:set]==:on \
+        || @opt.act[:txt_asciidoc][:set]==:on \
+        || @opt.act[:txt_markdown][:set]==:on \
+        || @opt.act[:txt_rst][:set]==:on \
         || @opt.act[:html][:set]==:on \
         || @opt.act[:html_scroll][:set]==:on \
         || @opt.act[:html_seg][:set]==:on \
@@ -643,6 +676,8 @@ module SiSU
         || @opt.act[:xml_dom][:set]==:on \
         || @opt.act[:xml_scaffold_structure_sisu][:set]==:on \
         || @opt.act[:xml_scaffold_structure_collapse][:set]==:on \
+        || @opt.act[:xml_docbook_book][:set]==:on \
+        || @opt.act[:xml_fictionbook][:set]==:on \
         || @opt.act[:pdf][:set]==:on \
         || @opt.act[:pdf_p][:set]==:on \
         || @opt.act[:pdf_l][:set]==:on \
diff --git a/lib/sisu/v5/manifest.rb b/lib/sisu/v5/manifest.rb
index fc4bd5b9..fb3064e7 100644
--- a/lib/sisu/v5/manifest.rb
+++ b/lib/sisu/v5/manifest.rb
@@ -396,6 +396,27 @@ module SiSU_Manifest
           id,file='XML DOM',@f.base_filename.xml_dom
           summarize(id,file,pth,rel,url)
         end
+        if FileTest.file?(@f.place_file.xml_docbook_article.dir)==true
+          pth=@f.output_path.xml_docbook_article.dir
+          rel=@f.output_path.xml_docbook_article.rel_sm
+          url=@f.output_path.xml_docbook_article.url
+          id,file='XML Docbook Book',@f.base_filename.xml_docbook_article
+          summarize(id,file,pth,rel,url)
+        end
+        if FileTest.file?(@f.place_file.xml_docbook_book.dir)==true
+          pth=@f.output_path.xml_docbook_book.dir
+          rel=@f.output_path.xml_docbook_book.rel_sm
+          url=@f.output_path.xml_docbook_book.url
+          id,file='XML Docbook Book',@f.base_filename.xml_docbook_book
+          summarize(id,file,pth,rel,url)
+        end
+        if FileTest.file?(@f.place_file.xml_fictionbook.dir)==true
+          pth=@f.output_path.xml_fictionbook.dir
+          rel=@f.output_path.xml_fictionbook.rel_sm
+          url=@f.output_path.xml_fictionbook.url
+          id,file='XML Fictionbook',@f.base_filename.xml_fictionbook
+          summarize(id,file,pth,rel,url)
+        end
         if FileTest.file?(@f.place_file.xml_scaffold_structure_sisu.dir)==true
           pth=@f.output_path.xml_scaffold_structure_sisu.dir
           rel=@f.output_path.xml_scaffold_structure_sisu.rel_sm
@@ -439,6 +460,38 @@ module SiSU_Manifest
           file=@f.base_filename.txt
           summarize(id,file,pth,rel,url)
         end
+        if FileTest.file?(@f.place_file.textile.dir)==true
+          id='Textile text (UTF-8)'
+          pth=@f.output_path.textile.dir
+          rel=@f.output_path.textile.rel_sm
+          url=@f.output_path.textile.url
+          file=@f.base_filename.textile
+          summarize(id,file,pth,rel,url)
+        end
+        if FileTest.file?(@f.place_file.asciidoc.dir)==true
+          id='asciiDoc text (UTF-8)'
+          pth=@f.output_path.asciidoc.dir
+          rel=@f.output_path.asciidoc.rel_sm
+          url=@f.output_path.asciidoc.url
+          file=@f.base_filename.asciidoc
+          summarize(id,file,pth,rel,url)
+        end
+        if FileTest.file?(@f.place_file.markdown.dir)==true
+          id='Markdown text (UTF-8)'
+          pth=@f.output_path.markdown.dir
+          rel=@f.output_path.markdown.rel_sm
+          url=@f.output_path.markdown.url
+          file=@f.base_filename.markdown
+          summarize(id,file,pth,rel,url)
+        end
+        if FileTest.file?(@f.place_file.rst.dir)==true
+          id='rST text (UTF-8)'
+          pth=@f.output_path.rst.dir
+          rel=@f.output_path.rst.rel_sm
+          url=@f.output_path.rst.url
+          file=@f.base_filename.rst
+          summarize(id,file,pth,rel,url)
+        end
         if FileTest.file?("#{@base_path}/#{@md.fns}.tex")==true
           id,file='LaTeX (portrait)',"#{@md.fns}.tex"
           pth,rel,url='','',''
diff --git a/lib/sisu/v5/manpage.rb b/lib/sisu/v5/manpage.rb
index 3e430b55..ccdd829c 100644
--- a/lib/sisu/v5/manpage.rb
+++ b/lib/sisu/v5/manpage.rb
@@ -61,7 +61,7 @@
 
 =end
 module SiSU_Manpage
-  require_relative 'dal'                                # dal.rb
+  require_relative 'ao'                                 # ao.rb
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env
   include SiSU_Param
@@ -69,7 +69,7 @@ module SiSU_Manpage
   require_relative 'manpage_format'                     # manpage_format.rb
     include SiSU_ManpageFormat
   require_relative 'shared_metadata'                    # shared_metadata.rb
-  require_relative 'shared_txt'                         # shared_txt.rb
+  require_relative 'txt_shared'                         # txt_shared.rb
   @@alt_id_count,@@alt_id_count,@@tablehead,@@number_of_cols=0,0,0,0
   @@tablefoot=''
   class Source
@@ -100,8 +100,8 @@ module SiSU_Manpage
         || @opt.act[:maintenance][:set]==:on)
           SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],@opt.fns,"#{@md.file.output_path.manpage.dir}/#{@md.file.base_filename.manpage}").flow
         end
-        @dal_array=SiSU_DAL::Source.new(@opt).get # dal file drawn here
-        SiSU_Manpage::Source::Scroll.new(@md,@dal_array).songsheet
+        @ao_array=SiSU_AO::Source.new(@opt).get # ao file drawn here
+        SiSU_Manpage::Source::Scroll.new(@md,@ao_array).songsheet
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -112,7 +112,7 @@ module SiSU_Manpage
     private
     class Scroll <Source
       require_relative 'defaults'                       # defaults.rb
-      require_relative 'shared_txt'                     # shared_txt.rb
+      require_relative 'txt_shared'                     # txt_shared.rb
         include SiSU_TextUtils
       @@endnotes={ para: [], end: [] }
       def initialize(md,data)
@@ -120,7 +120,6 @@ module SiSU_Manpage
         @brace_url=SiSU_Viz::Defaults.new.url_decoration
         @vz=SiSU_Viz::Defaults.new
         @tab="\t"
-        @br="\n"
         @@notes=:end
         @manpage={ body: [], open: [], close: [], head: [], metadata: [], tail: [], endnotes: [] }
       end
@@ -128,6 +127,9 @@ module SiSU_Manpage
         manpage=markup(@data)
         publish(manpage)
       end
+      def break_line
+        "\n"
+      end
       # Used for extraction of endnotes from paragraphs
       def extract_endnotes(dob='')
         para=dob.obj.gsub(/#{Mx[:br_line]}/,"\n")
@@ -176,7 +178,7 @@ GSUB
       end
       def manpage_tail
         @manpage[:tail] <<<<WOK
-#{@br}
+#{break_line}
 .TP
 .SH SEE ALSO
        sisu(1),
@@ -235,21 +237,21 @@ WOK
           times=wrapped.length
           times=78 if times > 78
           @manpage[:body] << case lv
-          when 1;    '.SH ' << wrapped.upcase << @br << @br
-          when 2..3; '.SH ' << wrapped.upcase << @br << @br
-          when 4;    '.SH ' << wrapped.upcase << @br << @br
-          when 5..6; '.SH ' << wrapped.upcase << @br << @br
+          when 1;    '.SH ' << wrapped.upcase << break_line << break_line
+          when 2..3; '.SH ' << wrapped.upcase << break_line << break_line
+          when 4;    '.SH ' << wrapped.upcase << break_line << break_line
+          when 5..6; '.SH ' << wrapped.upcase << break_line << break_line
           end
         else
           @manpage[:body] << if  wrapped =~/^\.BI\s/ # main text, contents, body KEEP
-            '.TP' << @br << wrapped.gsub(/(^\.B)I\s/,'\1 ') # sleight ... simpler output (check gsub!)
+            '.TP' << break_line << wrapped.gsub(/(^\.B)I\s/,'\1 ') # sleight ... simpler output (check gsub!)
           else
-            @br + '.BR' + @br << wrapped
+            break_line + '.BR' + break_line << wrapped
           end
         end
         if @@endnotes[:para] \
         and @@notes==:foot #edit out to switch off endnotes following paragraph to which they belong
-          @@endnotes[:para].each { |e| @manpage[:body] << e << @br }
+          @@endnotes[:para].each { |e| @manpage[:body] << e << break_line }
         elsif @@endnotes[:para] \
         and @@notes==:end
         end
@@ -349,7 +351,7 @@ WOK
               manpage_structure(dob)
             else
               if dob.obj =~/#{table_message}/
-                @manpage[:body] << dob.obj << @br
+                @manpage[:body] << dob.obj << break_line
               end
             end
             if (dob.obj =~/<a name="n\d+">/ \
diff --git a/lib/sisu/v5/options.rb b/lib/sisu/v5/options.rb
index 7203f8b2..f410e61f 100644
--- a/lib/sisu/v5/options.rb
+++ b/lib/sisu/v5/options.rb
@@ -496,7 +496,7 @@ module SiSU_Commandline
           when /^--(?:color-toggle)$/;                               c=c+'c'
           when /^--(?:color-off)$/;                                  c=c+'k'
           when /^--(?:conf|config|configure|init|initialize|init-site)$/;                        c=c+'CC'
-          when /^--(?:dal?|machine|abstraction|abs)$/;               c=c+'m'
+          when /^--(?:ao|dal?|machine|abstraction|abs)$/;               c=c+'m'
           when /^--(?:txt|text|plaintext)$/;                         c=c+'t'
           when /^--(?:html)$/;                                       c=c+'h'
           when /^--(?:html-scroll|html-seg)$/;                       c=c+'H'
@@ -552,12 +552,12 @@ module SiSU_Commandline
       if cmd !~/[mn]/
         extra+=if cmd =~/[abegHhIiLNOoPpQTtwXxyz]/ \
         and cmd !~/[mn]/
-          'm'                        #% add dal
+          'm'                        #% add ao
         elsif ((cmd =~/[Dd]/ \
         or (mod.inspect =~/--(?:(?:sq)?lite|pg(?:sql)?)/)) \
         and mod.inspect !~/(?:remove|(?:(?:re)?create(?:all)?|dropall|drop)$)/) \
         and cmd !~/[mn]/
-          'm'                        #% add dal
+          'm'                        #% add ao
         else ''
         end
       end
@@ -861,6 +861,13 @@ module SiSU_Commandline
         || mod.inspect =~/"--xml-dom"/) \
         ? { bool: true, set: :on }
         : { bool: false, set: :na }
+        act[:xml_docbook_book]=mod.inspect =~/"--docbook"|"--docbook-book"|"--xml-docbook"|"--xml-docbook_book"/ \
+        ? { bool: true, set: :on }
+        : { bool: false, set: :na }
+        act[:xml_fictionbook]=(cmd =~/f/ \
+        || mod.inspect =~/"--fictionbook"|"--xml-fictionbook"/) \
+        ? { bool: true, set: :on }
+        : { bool: false, set: :na }
         act[:xml_scaffold_structure_sisu]=mod.inspect =~/"--xml-scaffold"|"--xml-scaffold-sisu"/ \
         ? { bool: true, set: :on }
         : { bool: false, set: :na }
@@ -875,6 +882,18 @@ module SiSU_Commandline
         || mod.inspect =~/"--txt"/) \
         ? { bool: true, set: :on }
         : { bool: false, set: :na }
+        act[:txt_textile]=(mod.inspect =~/"--textile"/) \
+        ? { bool: true, set: :on }
+        : { bool: false, set: :na }
+        act[:txt_asciidoc]=(mod.inspect =~/"--asciidoc"/) \
+        ? { bool: true, set: :on }
+        : { bool: false, set: :na }
+        act[:txt_markdown]=(mod.inspect =~/"--markdown"/) \
+        ? { bool: true, set: :on }
+        : { bool: false, set: :na }
+        act[:txt_rst]=(mod.inspect =~/"--rst"|"--rest"|"--restructuredtext"/) \
+        ? { bool: true, set: :on }
+        : { bool: false, set: :na }
         act[:manpage]=(cmd =~/i/ \
         || mod.inspect =~/"--manpage"|"--man"/) \
         ? { bool: true, set: :on }
@@ -883,10 +902,6 @@ module SiSU_Commandline
         || mod.inspect =~/"--texinfo"/) \
         ? { bool: true, set: :on }
         : { bool: false, set: :na }
-        act[:fictionbook]=(cmd =~/f/ \
-        || mod.inspect =~/"--fictionbook"/) \
-        ? { bool: true, set: :on }
-        : { bool: false, set: :na }
         act[:psql]=(cmd =~/D/ \
         || mod.inspect =~/"--pg"|"--pgsql"/) \
         ? { bool: true, set: :on }
@@ -964,10 +979,14 @@ module SiSU_Commandline
         act[:help]=(mod.inspect =~/"--help/) \
         ? { bool: true, set: :on }
         : { bool: false, set: :na }
-        act[:dal]=if (cmd =~/m/ \
-        || mod.inspect =~/"--dal"/)
+        act[:ao]=if (cmd =~/m/ \
+        || mod.inspect =~/"--ao"|"--dal"/)
           { bool: true, set: :on }
         elsif (act[:txt][:set]==:on \
+        || act[:txt_textile][:set]==:on \
+        || act[:txt_asciidoc][:set]==:on \
+        || act[:txt_markdown][:set]==:on \
+        || act[:txt_rst][:set]==:on \
         || act[:xhtml][:set]==:on \
         || act[:epub][:set]==:on \
         || act[:html][:set]==:on \
@@ -986,20 +1005,22 @@ module SiSU_Commandline
         || act[:concordance][:set]==:on \
         || act[:xml_dom][:set]==:on \
         || act[:xml_sax][:set]==:on \
+        || act[:xml_docbook_book][:set]==:on \
+        || act[:xml_fictionbook][:set]==:on \
         || act[:xml_scaffold_structure_sisu][:set]==:on \
         || act[:xml_scaffold_structure_collapse][:set]==:on )
           { bool: true, set: :on }
           #if cmd !~/[mn]/
           #  extra+=if cmd =~/[abegHhIiLNOoPpQTtwXxyz]/ \
           #  and cmd !~/[mn]/
-          #    'm'                        #% add dal
+          #    'm'                        #% add ao
         #elsif (act[:txt][:set]==:on \
         #  { bool: true, set: :on }
           #  elsif ((cmd =~/[Dd]/ \
           #  or (mod.inspect =~/--(?:(?:sq)?lite|pg(?:sql)?)/)) \
           #  and mod.inspect !~/(?:remove|(?:(?:re)?create(?:all)?|dropall|drop)$)/) \
           #  and cmd !~/[mn]/
-          #    'm'                        #% add dal
+          #    'm'                        #% add ao
         else
           { bool: false, set: :na }
         end
@@ -1012,6 +1033,10 @@ module SiSU_Commandline
         || mod.inspect =~/"--manifest"/)
           { bool: true, set: :on }
         elsif (act[:txt][:set]==:on \
+        || act[:txt_textile][:set]==:on \
+        || act[:txt_asciidoc][:set]==:on \
+        || act[:txt_markdown][:set]==:on \
+        || act[:txt_rst][:set]==:on \
         || act[:xhtml][:set]==:on \
         || act[:epub][:set]==:on \
         || act[:html][:set]==:on \
@@ -1030,6 +1055,8 @@ module SiSU_Commandline
         || act[:concordance][:set]==:on \
         || act[:xml_dom][:set]==:on \
         || act[:xml_sax][:set]==:on \
+        || act[:xml_docbook_book][:set]==:on \
+        || act[:xml_fictionbook][:set]==:on \
         || act[:xml_scaffold_structure_sisu][:set]==:on \
         || act[:xml_scaffold_structure_collapse][:set]==:on )
           { bool: true, set: :on }
diff --git a/lib/sisu/v5/param.rb b/lib/sisu/v5/param.rb
index e8144a5e..d01f39e2 100644
--- a/lib/sisu/v5/param.rb
+++ b/lib/sisu/v5/param.rb
@@ -86,7 +86,7 @@ module SiSU_Param
       end
       SiSU_Param::Instantiate.new.param_instantiate
       @env=SiSU_Env::InfoEnv.new(@fns)
-      @pstorefile="#{@env.processing_path.dal}/#{@fns}.pstore"
+      @pstorefile="#{@env.processing_path.ao}/#{@fns}.pstore"
     end
     def get
       if @opt.f_pth \
@@ -1406,7 +1406,7 @@ module SiSU_Param
         end
         def store
           begin
-            pstorefile="#{@env.processing_path.dal}/#{@md.fns}.pstore"
+            pstorefile="#{@env.processing_path.ao}/#{@md.fns}.pstore"
             File.unlink(pstorefile) if FileTest.file?(pstorefile)
             if (@md.opt.act[:verbose_plus][:set]==:on \
             || @md.opt.act[:maintenance][:set]==:on)
diff --git a/lib/sisu/v5/particulars.rb b/lib/sisu/v5/particulars.rb
index 000748ff..beeaf429 100644
--- a/lib/sisu/v5/particulars.rb
+++ b/lib/sisu/v5/particulars.rb
@@ -66,14 +66,14 @@ module SiSU_Particulars
     include SiSU_Env
   require_relative 'param'                              # param.rb
     include SiSU_Param
-  require_relative 'dal'                                # dal.rb
+  require_relative 'ao'                                 # ao.rb
   class CombinedSingleton
     include Singleton
     def get_all(opt)
       set_env(opt)
       set_file(opt)
       set_md(opt)
-      set_dal(opt)                #needs @md
+      set_ao(opt)                #needs @md
     end
     def get_env(opt)
       set_env(opt)
@@ -84,8 +84,8 @@ module SiSU_Particulars
     def get_md(opt)
       set_md(opt)
     end
-    def get_dal_array(opt)
-      set_dal(opt)                #needs @md
+    def get_ao_array(opt)
+      set_ao(opt)                #needs @md
     end
     def get_env_md(opt)
       set_env(opt)
@@ -149,10 +149,10 @@ module SiSU_Particulars
         end
       end
     end
-    attr_accessor :opt,:dal_array
-    def set_dal(opt)
+    attr_accessor :opt,:ao_array
+    def set_ao(opt)
       begin
-        @dal_array=SiSU_DAL::Source.new(opt).get
+        @ao_array=SiSU_AO::Source.new(opt).get
         self
       rescue
         SiSU_Errors::Rescued.new($!,$@,opt.cmd,opt.fnl).location do
@@ -162,7 +162,7 @@ module SiSU_Particulars
     end
     def set_sst_idx(opt)
       begin
-        @sst_idx=SiSU_DAL::Source.new(opt).get_idx_sst
+        @sst_idx=SiSU_AO::Source.new(opt).get_idx_sst
         self
       rescue
         SiSU_Errors::Rescued.new($!,$@,opt.cmd,opt.fnl).location do
@@ -172,7 +172,7 @@ module SiSU_Particulars
     end
     def set_raw_idx(opt)
       begin
-        @raw_idx=SiSU_DAL::Source.new(opt).get_idx_raw
+        @raw_idx=SiSU_AO::Source.new(opt).get_idx_raw
         self
       rescue
         SiSU_Errors::Rescued.new($!,$@,opt.cmd,opt.fnl).location do
@@ -182,7 +182,7 @@ module SiSU_Particulars
     end
     def set_html_idx(opt)
       begin
-        @html_idx=SiSU_DAL::Source.new(opt).get_idx_html
+        @html_idx=SiSU_AO::Source.new(opt).get_idx_html
         self
       rescue
         SiSU_Errors::Rescued.new($!,$@,opt.cmd,opt.fnl).location do
@@ -192,7 +192,7 @@ module SiSU_Particulars
     end
     def set_xhtml_idx(opt)
       begin
-        @xhtml_idx=SiSU_DAL::Source.new(opt).get_idx_xhtml
+        @xhtml_idx=SiSU_AO::Source.new(opt).get_idx_xhtml
         self
       rescue
         SiSU_Errors::Rescued.new($!,$@,opt.cmd,opt.fnl).location do
@@ -204,7 +204,7 @@ module SiSU_Particulars
     def set_nametags_map(opt)
       begin
         opt=@md ? @md : opt
-        @nametags_map=SiSU_DAL::Source.new(opt).get_map_nametags
+        @nametags_map=SiSU_AO::Source.new(opt).get_map_nametags
         self
       rescue
         if @md
@@ -221,7 +221,7 @@ module SiSU_Particulars
     attr_accessor :ocn_htmlseg_map
     def set_ocn_htmlseg_map(opt)
       begin
-        @ocn_htmlseg_map=SiSU_DAL::Source.new(@md).get_map_ocn_htmlseg
+        @ocn_htmlseg_map=SiSU_AO::Source.new(@md).get_map_ocn_htmlseg
         self
       rescue
         SiSU_Errors::Rescued.new($!,$@,opt.cmd,opt.fnl).location do
diff --git a/lib/sisu/v5/plaintext_format.rb b/lib/sisu/v5/plaintext_format.rb
deleted file mode 100644
index acad8828..00000000
--- a/lib/sisu/v5/plaintext_format.rb
+++ /dev/null
@@ -1,104 +0,0 @@
-# encoding: utf-8
-=begin
-
- * Name: SiSU
-
- * Description: a framework for document structuring, publishing and search
-
- * Author: Ralph Amissah
-
- * Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-   2007, 2008, 2009, 2010, 2011, 2012, 2013 Ralph Amissah, All Rights Reserved.
-
- * License: GPL 3 or later:
-
-   SiSU, a framework for document structuring, publishing and search
-
-   Copyright (C) Ralph Amissah
-
-   This program is free software: you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published by the Free
-   Software Foundation, either version 3 of the License, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful, but WITHOUT
-   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-   FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-   more details.
-
-   You should have received a copy of the GNU General Public License along with
-   this program. If not, see <http://www.gnu.org/licenses/>.
-
-   If you have Internet connection, the latest version of the GPL should be
-   available at these locations:
-   <http://www.fsf.org/licensing/licenses/gpl.html>
-   <http://www.gnu.org/licenses/gpl.html>
-
-   <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-
- * SiSU uses:
-   * Standard SiSU markup syntax,
-   * Standard SiSU meta-markup syntax, and the
-   * Standard SiSU object citation numbering and system
-
- * Hompages:
-   <http://www.jus.uio.no/sisu>
-   <http://www.sisudoc.org>
-
- * Download:
-   <http://www.sisudoc.org/sisu/en/SiSU/download.html>
-
- * 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/plaintext_format.rb;hb=HEAD>
-
- * Ralph Amissah
-   <ralph@amissah.com>
-   <ralph.amissah@gmail.com>
-
- ** Description: plaintext formatting template
-
-=end
-module SiSU_Plaintext_Format
-  require_relative 'param'                              # param.rb
-    include SiSU_Param
-  include SiSU_Viz
-  class ParagraphNumber
-    def initialize(paranum)
-      @paranum=/(\d+)/m.match(paranum.to_s)[1]
-    end
-    def display
-      @paranum.gsub(/(\d+)/,"\n#{Dx[:ocn_o]}\\1#{Dx[:ocn_c]}")
-    end
-    def name #unused
-      @paranum.gsub(/(\d+)/,'\1')
-    end
-    def goto #unused
-      @paranum.gsub(/(\d+)/,'"#\1"')
-    end
-  end
-  class FormatTextObject
-    def initialize(md,t_o)
-      @md,@t_o=md,t_o
-      if t_o.is_a?(Hash)
-        @txt =t_o[:txt]            || nil
-        @lnk_url =t_o[:lnk_url]    || nil
-        @lnk_txt =t_o[:lnk_txt]    || nil
-      else
-        p t_o.class
-        p caller
-      end
-      rgx=/^#{Rx[:lv]}/
-      @txt=@txt.gsub(rgx,'') if @txt =~rgx
-      rgx=/#{Mx[:en_a_o]}[\d*+]+\s+(.+?)#{Mx[:en_a_c]}/
-      @txt=@txt.gsub(rgx,'\1') if @txt =~rgx
-      @vz=SiSU_Viz::Defaults.new
-    end
-    def scr_endnote_body
-      "<endnote>#{@txt}</endnote> "
-    end
-  end
-  class XML
-  end
-end
-__END__
diff --git a/lib/sisu/v5/po4a.rb b/lib/sisu/v5/po4a.rb
index 64f2c18d..217f2975 100644
--- a/lib/sisu/v5/po4a.rb
+++ b/lib/sisu/v5/po4a.rb
@@ -61,7 +61,7 @@
 
 =end
 module SiSU_Po4a
-  require_relative 'dal'                                # dal.rb
+  require_relative 'ao'                                 # ao.rb
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env
   require_relative 'composite'                          # composite.rb
@@ -101,7 +101,7 @@ module SiSU_Po4a
         end
         md=SiSU_Param::Parameters.new(@opt).get
         src[:files].each do |fn|
-          SiSU_DAL::Source.new(@opt,fn).read             # -m
+          SiSU_AO::Source.new(@opt,fn).read             # -m
           env=SiSU_Env::InfoEnv.new(@opt.fns)
           m=/((.+?)(?:\~\w\w(?:_\w\w)?)?)\.((?:-|ssm\.)?sst|ssm|ssi)$/ #watch added match for sss
           @fnn,@fnb,@fnt=fn[m,1],fn[m,2],fn[m,3]
@@ -126,7 +126,7 @@ module SiSU_Po4a
           if @opt.fns =~/\S+?~#{@lang_regx}\.ss[mti]/ \
           or @opt.f_pth[:lng] !=@opt.lng_base
             opt_lang_trn_fn=fn
-            @dal_array_lang_translation=SiSU_DAL::Source.new(@opt,opt_lang_trn_fn).get # dal file drawn here
+            @ao_array_lang_translation=SiSU_AO::Source.new(@opt,opt_lang_trn_fn).get # ao file drawn here
             opt_lang_src_fn=if fn =~/\S+?~\S{2}(?:_\S{2})?\.ss[mti]/
               fn.gsub(/(\S+?)~\S{2}(?:_\S{2})?(\.ss[mti])/,'\1\2') #check i
             else fn
@@ -141,15 +141,15 @@ module SiSU_Po4a
             else nil
             end
             if FileTest.file?("#{srcdir}/#{opt_lang_src_fn}")
-              @dal_array_lang_src=SiSU_DAL::Source.new(@@opt_src,opt_lang_src_fn).get # dal file drawn here
+              @ao_array_lang_src=SiSU_AO::Source.new(@@opt_src,opt_lang_src_fn).get # ao file drawn here
             else
               puts "no identified source document"
               exit
             end
             Dir.chdir(transdir) if transdir
           else
-            @dal_array_lang_src=SiSU_DAL::Source.new(@opt,fn).get # dal file drawn here
-            @dal_array_lang_translation=nil
+            @ao_array_lang_src=SiSU_AO::Source.new(@opt,fn).get # ao file drawn here
+            @ao_array_lang_translation=nil
           end
           wrap_width=if defined? md.make.plaintext_wrap \
           and md.make.plaintext_wrap
@@ -159,7 +159,7 @@ module SiSU_Po4a
             env.plaintext_wrap
           else 78
           end
-          SiSU_Po4a::Source::Scroll.new(fn,@dal_array_lang_src,@dal_array_lang_translation,@@md_src,@@md_trn,wrap_width).songsheet
+          SiSU_Po4a::Source::Scroll.new(fn,@ao_array_lang_src,@ao_array_lang_translation,@@md_src,@@md_trn,wrap_width).songsheet
         end
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
diff --git a/lib/sisu/v5/prog_text_translation.rb b/lib/sisu/v5/prog_text_translation.rb
index 8425a109..ae166d23 100644
--- a/lib/sisu/v5/prog_text_translation.rb
+++ b/lib/sisu/v5/prog_text_translation.rb
@@ -473,7 +473,7 @@ module SiSU_Translate
       'Document (RCS/CVS) number'
     end
     def last_generated
-      'Document (dal) last generated'
+      'Document (ao) last generated'
     end
     def sisu_version
       'Generated by'
@@ -1324,7 +1324,7 @@ module SiSU_Translate
       'Numero di revisione (RCS/CVS)'
     end
     def last_generated
-      'Data di ultima generazione (dal metaverse)'
+      'Data di ultima generazione (ao metaverse)'
     end
     def sisu_version
       'Generato da'
diff --git a/lib/sisu/v5/relaxng.rb b/lib/sisu/v5/relaxng.rb
index 39d6bde9..ef632308 100644
--- a/lib/sisu/v5/relaxng.rb
+++ b/lib/sisu/v5/relaxng.rb
@@ -327,9 +327,9 @@ element-external_space =
   }
 RELAXNG
     end
-    def rnc_sisu_object_dal
+    def rnc_sisu_object_ao
       @relaxng =<<RELAXNG
-#%% sisu object model: dal
+#%% sisu object model: ao
 #{gpl3_or_later}
 #%% definitions
 # dublin core:
@@ -500,7 +500,7 @@ RELAXNG
       @relaxng =<<RELAXNG
 #% sax output model, part of SiSU and distributed under the same license
 default namespace = ""
-namespace xlink = "http://www.w3.org/1999/xlink"
+namespace xl = "http://www.w3.org/1999/xlink"
 start =
   element document {
     element head {
@@ -510,8 +510,8 @@ start =
            attribute class { xsd:NCName },
            (text
             | element link {
-                attribute xlink:href { xsd:anyURI },
-                attribute xlink:type { xsd:NCName },
+                attribute xl:href { xsd:anyURI },
+                attribute xl:type { xsd:NCName },
                 xsd:anyURI
               })+
          }
@@ -603,10 +603,10 @@ start =
                attribute alt { text }?,
                attribute height { xsd:integer }?,
                attribute width { xsd:integer }?,
-               attribute xlink:actuate { xsd:NCName },
-               attribute xlink:href { text },
-               attribute xlink:show { xsd:NCName },
-               attribute xlink:type { xsd:NCName }
+               attribute xl:actuate { xsd:NCName },
+               attribute xl:href { text },
+               attribute xl:show { xsd:NCName },
+               attribute xl:type { xsd:NCName }
              })+
         }?,
         element table {
@@ -654,8 +654,8 @@ sub = element sub { xsd:NCName }
 sup = element sup { xsd:NCName }
 link =
   element link {
-    attribute xlink:href { xsd:anyURI },
-    attribute xlink:type { xsd:NCName },
+    attribute xl:href { xsd:anyURI },
+    attribute xl:type { xsd:NCName },
     (xsd:anyURI | text | b | i | sup)+
   }
 u = element u { (text | b | i)+ }
@@ -666,7 +666,7 @@ RELAXNG
       @relaxng =<<RELAXNG
 #% dom output model, part of SiSU and distributed under the same license
 default namespace = ""
-namespace xlink = "http://www.w3.org/1999/xlink"
+namespace xl = "http://www.w3.org/1999/xlink"
 start =
   element document {
     element head {
@@ -770,10 +770,10 @@ object =
           | element image {
               attribute height { xsd:integer },
               attribute width { xsd:integer },
-              attribute xlink:actuate { xsd:NCName },
-              attribute xlink:href { text },
-              attribute xlink:show { xsd:NCName },
-              attribute xlink:type { xsd:NCName }
+              attribute xl:actuate { xsd:NCName },
+              attribute xl:href { text },
+              attribute xl:show { xsd:NCName },
+              attribute xl:type { xsd:NCName }
             }
           | element sub { text })+
        })
@@ -786,8 +786,8 @@ sup = element sup { xsd:NCName }
 del = element del { (text | b | i | link)+ }
 link =
   element link {
-    attribute xlink:href { xsd:anyURI },
-    attribute xlink:type { xsd:NCName },
+    attribute xl:href { xsd:anyURI },
+    attribute xl:type { xsd:NCName },
     xsd:anyURI
   }
 endnote =
@@ -814,7 +814,7 @@ RELAXNG
       @relaxng =<<RELAXNG
 #% xhtml output model, part of SiSU and distributed under the same license
 default namespace = ""
-namespace xlink = "http://www.w3.org/1999/xlink"
+namespace xl = "http://www.w3.org/1999/xlink"
 start =
   element document {
     element head {
@@ -823,8 +823,8 @@ start =
            attribute class { xsd:NCName },
            (text
             | element link {
-                attribute xlink:href { xsd:anyURI },
-                attribute xlink:type { xsd:NCName },
+                attribute xl:href { xsd:anyURI },
+                attribute xl:type { xsd:NCName },
                 xsd:anyURI
               })+
          }
@@ -923,10 +923,10 @@ start =
                   attribute alt { text }?,
                   attribute height { xsd:integer }?,
                   attribute width { xsd:integer }?,
-                  attribute xlink:actuate { xsd:NCName },
-                  attribute xlink:href { text },
-                  attribute xlink:show { xsd:NCName },
-                  attribute xlink:type { xsd:NCName }
+                  attribute xl:actuate { xsd:NCName },
+                  attribute xl:href { text },
+                  attribute xl:show { xsd:NCName },
+                  attribute xl:type { xsd:NCName }
                 }
               | element sub { text })+
            })+,
@@ -954,8 +954,8 @@ sup = element sup { xsd:NCName }
 i = element i { (text | b | br | sup)+ }
 link =
   element link {
-    attribute xlink:href { xsd:anyURI },
-    attribute xlink:type { xsd:NCName },
+    attribute xl:href { xsd:anyURI },
+    attribute xl:type { xsd:NCName },
     (text | b | i | sup)+
   }
 b = element b { (text | en | i | link | sup)+ }
diff --git a/lib/sisu/v5/screen_text_color.rb b/lib/sisu/v5/screen_text_color.rb
index 4e4a319f..1d9de72c 100644
--- a/lib/sisu/v5/screen_text_color.rb
+++ b/lib/sisu/v5/screen_text_color.rb
@@ -244,6 +244,9 @@ module SiSU_Screen
         %{#{@cX.off} } +
         %{#{@cX.cyan}nav only: #{@txt[4]}#{@cX.off}.}
     end
+    def grey
+      puts "#{@cX.grey}#{@txt[0]}#{@cX.off} #{@cX.cyan}#{@txt[1]}#{@cX.off}"
+    end
     def txt_white
       puts "\t#{@cX.white}#{@txt[0]}#{@cX.off} #{@cX.white}#{@txt[1]}#{@cX.off}"
     end
diff --git a/lib/sisu/v5/shared_metadata.rb b/lib/sisu/v5/shared_metadata.rb
index 91b12043..e176deb9 100644
--- a/lib/sisu/v5/shared_metadata.rb
+++ b/lib/sisu/v5/shared_metadata.rb
@@ -832,18 +832,18 @@ WOK
             @inf=inf_array.join(' ')
           end
           @inf=@inf.gsub(/#{Mx[:url_o]}_(\S+?)#{Mx[:url_c]}/,
-              '<text:a xlink:type="simple" xlink:href="\1">\1</text:a>'). #http ftp matches escaped, no decoration
+              '<text:a xl:type="simple" xl:href="\1">\1</text:a>'). #http ftp matches escaped, no decoration
             gsub(/(#{Mx[:lnk_c]})#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,
-              '\1<text:a xlink:type="simple" xlink:href="\2">\2</text:a>') #special case \{ e.g. \}http://url
+              '\1<text:a xl:type="simple" xl:href="\2">\2</text:a>') #special case \{ e.g. \}http://url
           @inf=if @inf =~/#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/
             @inf.gsub(/#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,
-              %{#{url_brace.xml_open}<text:a xlink:type="simple" xlink:href="\\1">\\1</text:a>#{url_brace.xml_close}}) #http ftp matches with decoration
+              %{#{url_brace.xml_open}<text:a xl:type="simple" xl:href="\\1">\\1</text:a>#{url_brace.xml_close}}) #http ftp matches with decoration
           else
             @inf.gsub(/(https?:\/\/[^<>()'"\s]+)/,
-              %{#{url_brace.xml_open}<text:a xlink:type="simple" xlink:href="\\1">\\1</text:a>#{url_brace.xml_close}}) #http ftp matches with decoration
+              %{#{url_brace.xml_open}<text:a xl:type="simple" xl:href="\\1">\\1</text:a>#{url_brace.xml_close}}) #http ftp matches with decoration
           end
           @inf=@inf.gsub(/([a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+)/,
-            %{#{url_brace.xml_open}<text:a xlink:type="simple" xlink:href="mailto:\\1">\\1</text:a>#{url_brace.xml_close}}) if @inf !~/http:\/\// # improve upon, document crash where url contains '@' symbol
+            %{#{url_brace.xml_open}<text:a xl:type="simple" xl:href="mailto:\\1">\\1</text:a>#{url_brace.xml_close}}) if @inf !~/http:\/\// # improve upon, document crash where url contains '@' symbol
         end
         <<WOK
 <text:p text:style-name="P1">#{@tag.capitalize}: #{@inf}</text:p>
diff --git a/lib/sisu/v5/sitemaps.rb b/lib/sisu/v5/sitemaps.rb
index 8e4d1410..6e81369a 100644
--- a/lib/sisu/v5/sitemaps.rb
+++ b/lib/sisu/v5/sitemaps.rb
@@ -64,7 +64,7 @@ module SiSU_Sitemaps
     include SiSU_Param
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env
-  require_relative 'shared_xml'                         # shared_xml.rb
+  require_relative 'xml_shared'                         # xml_shared.rb
     include SiSU_XML_Munge
   class Source
     def initialize(opt)
diff --git a/lib/sisu/v5/share_src_kdissert.rb b/lib/sisu/v5/src_kdissert_share.rb
index b696891e..a71aca99 100644
--- a/lib/sisu/v5/share_src_kdissert.rb
+++ b/lib/sisu/v5/src_kdissert_share.rb
@@ -50,7 +50,7 @@
 
  * 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/share_src_kdissert.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/src_share_kdissert.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
diff --git a/lib/sisu/v5/share_src.rb b/lib/sisu/v5/src_share.rb
index 69dd7bb9..1aba0d95 100644
--- a/lib/sisu/v5/share_src.rb
+++ b/lib/sisu/v5/src_share.rb
@@ -50,7 +50,7 @@
 
  * 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/share_src.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/src_share.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
@@ -60,7 +60,7 @@
 
 =end
 module SiSU_Markup
-  require_relative 'shared_sisupod_source'              # shared_sisupod_source.rb
+  require_relative 'src_shared'                         # src_shared.rb
     include SiSU_Source
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env
diff --git a/lib/sisu/v5/shared_sisupod_source.rb b/lib/sisu/v5/src_shared.rb
index f8a4058d..65c4288e 100644
--- a/lib/sisu/v5/shared_sisupod_source.rb
+++ b/lib/sisu/v5/src_shared.rb
@@ -50,7 +50,7 @@
 
  * 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/shared_sisupod_source.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/src_shared.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
@@ -300,7 +300,7 @@ sisu
     standard_terms/
     image
     processing
-      dal/
+      ao/
       tex/
       texinfo/
       tune/
diff --git a/lib/sisu/v5/sisupod_make.rb b/lib/sisu/v5/src_sisupod_make.rb
index 462e2ea4..d244ece4 100644
--- a/lib/sisu/v5/sisupod_make.rb
+++ b/lib/sisu/v5/src_sisupod_make.rb
@@ -50,7 +50,7 @@
 
  * 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/sisupod_make.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/src_sisupod_make.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
@@ -60,7 +60,7 @@
 
 =end
 module SiSU_Doc
-  require_relative 'shared_sisupod_source'              # shared_sisupod_source.rb
+  require_relative 'src_shared'                         # scr_shared.rb
     include SiSU_Source
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env
@@ -155,7 +155,7 @@ sisu
     standard_terms/
     image
     processing
-      dal/
+      ao/
       tex/
       texinfo/
       tune/
diff --git a/lib/sisu/v5/sst_do_inline_footnotes.rb b/lib/sisu/v5/sst_do_inline_footnotes.rb
index 836d0d29..cafe9c60 100644
--- a/lib/sisu/v5/sst_do_inline_footnotes.rb
+++ b/lib/sisu/v5/sst_do_inline_footnotes.rb
@@ -67,8 +67,8 @@ module SiSU_ConvertFootnotes
     include SiSU_Env
   require_relative 'param'                              # param.rb
     include SiSU_Param
-  require_relative 'dal_syntax'                         # dal_syntax.rb
-    include SiSU_DAL_Syntax
+  require_relative 'ao_syntax'                          # ao_syntax.rb
+    include SiSU_AO_Syntax
   require_relative 'i18n'                               # i18n.rb
   class Instantiate < SiSU_Param::Parameters::Instructions
      @@flag={} #Beware!!
@@ -82,19 +82,19 @@ module SiSU_ConvertFootnotes
     end
   end
   class Source <Instantiate
-    @@dal_array=[]
+    @@ao_array=[]
     @@fns=nil
     def initialize(opt)
       @opt=opt
       @@fns||@opt.fns
       @my_make=SiSU_Env::CreateFile.new(@opt.fns)
-      @fnm=SiSU_Env::InfoFile.new(@opt.fns).marshal.dal_content
+      @fnm=SiSU_Env::InfoFile.new(@opt.fns).marshal.ao_content
     end
-    def read                                                                     #creates dal
+    def read                                                                     #creates ao
       begin
-        @@dal_array=[]
+        @@ao_array=[]
         @@fns=@opt.fns
-        create_dal
+        create_ao
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -103,16 +103,16 @@ module SiSU_ConvertFootnotes
         Instantiate.new
       end
     end
-    def get                                                                      #reads dal, unless does not exist then creates first
+    def get                                                                      #reads ao, unless does not exist then creates first
       begin
-        dal=[]
+        ao=[]
         unless @@fns==@opt.fns
           @@fns=@opt.fns
-          @@dal_array=[]
+          @@ao_array=[]
         end
-        dal=(@@dal_array.empty?) \
+        ao=(@@ao_array.empty?) \
         ? read_fnm
-        : @@dal_array.dup #check
+        : @@ao_array.dup #check
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -122,8 +122,8 @@ module SiSU_ConvertFootnotes
       end
     end
   protected
-    def create_dal
-      dal_array=[]
+    def create_ao
+      ao_array=[]
       SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'convert footnotes').green_title_hi unless @opt.act[:quiet][:set]==:on
       file_array=IO.readlines(@opt.fns,'')
       file_array.each do |l|
@@ -136,21 +136,21 @@ module SiSU_ConvertFootnotes
       if @md.en[:mismatch]==0 \
       or @md.opt.mod.inspect =~/=footnotes-force/
         meta=nil
-        dal=SiSU_ConvertFootnotes::Make.new(@md,file_array).song
+        ao=SiSU_ConvertFootnotes::Make.new(@md,file_array).song
         SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],@opt.fns,"#{@md.fns}.fn").output if @md.opt.act[:verbose][:set]==:on
         SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],"#{@md.fns}.fn -> #{@md.fns}.fn").txt_red unless @md.opt.act[:quiet][:set]==:on
-        dal.each {|s| dal_array << "#{s.strip}\n\n" unless s.strip.empty?}
-        dal_array
+        ao.each {|s| ao_array << "#{s.strip}\n\n" unless s.strip.empty?}
+        ao_array
       else
         SiSU_Screen::Ansi.new(@md.opt.act[:color_state][:set],'*WARN* no footnote conversion done, problem with source file','to override use --convert=footnote-force (this is not advised)').warn unless @md.opt.act[:quiet][:set]==:on
         ''
       end
     end
     def read_fnm
-      dal=[]
-      dal=(FileTest.file?(@fnm)) \
-      ? (File.open(@fnm){ |f| dal=Marshal.load(f)})
-      : (SiSU_ConvertFootnotes::Source.new(@opt).create_dal) #watch
+      ao=[]
+      ao=(FileTest.file?(@fnm)) \
+      ? (File.open(@fnm){ |f| ao=Marshal.load(f)})
+      : (SiSU_ConvertFootnotes::Source.new(@opt).create_ao) #watch
     end
   end
   class Output
@@ -189,7 +189,7 @@ module SiSU_ConvertFootnotes
     def song
       reset
       data=@data
-      @metafile="#{@env.processing_path.dal}/#{@md.fns}.meta"
+      @metafile="#{@env.processing_path.ao}/#{@md.fns}.meta"
       SiSU_Env::CreateFile.new(@md.fns)
       data=data.join.split("\n\n")
       data_new=[]
@@ -458,7 +458,7 @@ module SiSU_ConvertFootnotes
         end
       end
     end
-    def strip_clean_extra_spaces(s)                                            # dal output tuned
+    def strip_clean_extra_spaces(s)                                            # ao output tuned
       s=s.dup
       s=s.gsub(/[ ]+([,.;:?](?:$|\s))/,'\1')
       s=s.gsub(/ [ ]+/,' ')
@@ -482,4 +482,4 @@ module SiSU_ConvertFootnotes
 end
 __END__
 @particulars=SiSU_Particulars::CombinedSingleton.instance.get_all(opt)
-dal_array=@particulars.dal_array # dal file drawn here
+ao_array=@particulars.ao_array # ao file drawn here
diff --git a/lib/sisu/v5/sst_to_s_xml_sax.rb b/lib/sisu/v5/sst_to_s_xml_sax.rb
index d6767595..5f18496a 100644
--- a/lib/sisu/v5/sst_to_s_xml_sax.rb
+++ b/lib/sisu/v5/sst_to_s_xml_sax.rb
@@ -68,8 +68,8 @@ module SiSU_SimpleXML_ModelSax
     include SiSU_Param
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env
-  require_relative 'dal_doc_str'                        # dal_doc_str.rb
-  require_relative 'shared_xml'                         # shared_xml.rb
+  require_relative 'ao_doc_str'                         # ao_doc_str.rb
+  require_relative 'xml_shared'                         # xml_shared.rb
     include SiSU_XML_Munge
   require_relative 'shared_sem'                         # shared_sem.rb
   require_relative 'xml_format'                         # xml_format.rb
@@ -109,9 +109,9 @@ module SiSU_SimpleXML_ModelSax
       end
     end
     def read_fnm
-      dal=[]
+      ao=[]
       if FileTest.file?("#{Dir.pwd}/#{@opt.fns}")
-        dal=IO.readlines("#{Dir.pwd}/#{@opt.fns}","\n\n")
+        ao=IO.readlines("#{Dir.pwd}/#{@opt.fns}","\n\n")
       else STDERR.puts 'Error'
       end
     end
@@ -138,7 +138,7 @@ module SiSU_SimpleXML_ModelSax
       end
     end
     class Scroll
-      require_relative 'shared_txt'                     # shared_txt.rb
+      require_relative 'txt_shared'                     # txt_shared.rb
       require_relative 'css'                            # css.rb
         include SiSU_TextUtils
       @@xml={ body: [], open: [], close: [], head: [] }
@@ -276,7 +276,7 @@ WOK
         (0..6).each { |x| @cont[x]=@level[x]=false }
         (4..6).each { |x| @xml_contents_close[x]='' }
         @data.each do |para|
-          data << SiSU_DAL_DocumentStructureExtract::Structure.new(@md,para).structure #takes on Mx marks
+          data << SiSU_AO_DocumentStructureExtract::Structure.new(@md,para).structure #takes on Mx marks
         end
         data.each do |para|
           if para !~/^\s*(?:%+ |<:code>)/
diff --git a/lib/sisu/v5/sysenv.rb b/lib/sisu/v5/sysenv.rb
index d4079f8c..1f5d7d3a 100644
--- a/lib/sisu/v5/sysenv.rb
+++ b/lib/sisu/v5/sysenv.rb
@@ -142,7 +142,7 @@ module SiSU_Env
     PROCESSING_PATH=:processing_path
     PROCESSING_DIR_TMP_ROOT=:processing_dir_tmp_root
     PROCESSING_PATH_TMP_BASE=:processing_path_tmp_base
-    PROCESSING_DAL=:processing_dal
+    PROCESSING_AO=:processing_ao
     PROCESSING_TUNE=:processing_tune
     PROCESSING_LATEX=:processing_latex
     PROCESSING_TEXINFO=:processing_texinfo
@@ -186,7 +186,7 @@ module SiSU_Env
       PROCESSING_PATH =>          processing_pth,
       PROCESSING_DIR_TMP_ROOT  => prcss_dir_tmp_root,
       PROCESSING_PATH_TMP_BASE => processing_pth,
-      PROCESSING_DAL =>           'dal',
+      PROCESSING_AO =>            'ao',
       PROCESSING_TUNE =>          'tune',
       PROCESSING_LATEX =>         'tex',
       PROCESSING_TEXINFO =>       'texinfo',
@@ -1478,6 +1478,18 @@ module SiSU_Env
       ? @rc['odt']['ocn']
       : true
     end
+    def xml_docbook_ocn?
+      ((defined? @rc['xml_docbook']['ocn']) \
+      && @rc['xml_docbook']['ocn']==false) \
+      ? @rc['xml_docbook']['ocn']
+      : true
+    end
+    def xml_fictionbook_ocn?
+      ((defined? @rc['xml_fictionbook']['ocn']) \
+      && @rc['xml_fictionbook']['ocn']==false) \
+      ? @rc['xml_fictionbook']['ocn']
+      : true
+    end
     def xml_scaffold_ocn?
       ((defined? @rc['xml_scaffold']['ocn']) \
       && @rc['xml_scaffold']['ocn']==false) \
@@ -1490,6 +1502,30 @@ module SiSU_Env
       ? @rc['plaintext']['ocn']
       : true
     end
+    def textile_ocn?
+      ((defined? @rc['textile']['ocn']) \
+      && @rc['textile']['ocn']==true) \
+      ? @rc['textile']['ocn']
+      : false
+    end
+    def asciidoc_ocn?
+      ((defined? @rc['asciidoc']['ocn']) \
+      && @rc['asciidoc']['ocn']==true) \
+      ? @rc['asciidoc']['ocn']
+      : false
+    end
+    def markdown_ocn?
+      ((defined? @rc['markdown']['ocn']) \
+      && @rc['markdown']['ocn']==true) \
+      ? @rc['markdown']['ocn']
+      : false
+    end
+    def rst_ocn?
+      ((defined? @rc['rst']['ocn']) \
+      && @rc['rst']['ocn']==true) \
+      ? @rc['rst']['ocn']
+      : false
+    end
     def widget #needs (md) #move
       @rc=SiSU_Env::GetInit.new.sisu_yaml.rc
       @ad=SiSU_Env::GetInit.new.ads
@@ -2161,7 +2197,7 @@ WOK
         ? ("#{root_dir}/#{user}/#{stub_pwd}")
         : ("#{root_dir}/#{stub_pwd}") # see defaults[:processing_path]
       end
-      def processing_sisupod(opt=nil)                                                   #processing directory, used/needed for sisu work files, has sub-directories (dal,tex etc)
+      def processing_sisupod(opt=nil)                                                   #processing directory, used/needed for sisu work files, has sub-directories (ao,tex etc)
         @opt=opt
         def paths
           processing_path_usr="#{root_dir}/#{user}"
@@ -2195,7 +2231,7 @@ WOK
         end
         self
       end
-      def processing                                                             #processing directory, used/needed for sisu work files, has sub-directories (dal,tex etc)
+      def processing                                                             #processing directory, used/needed for sisu work files, has sub-directories (ao,tex etc)
         unless FileTest.directory?(root_dir)
           FileUtils::mkdir_p(root_dir)
           File.chmod(0777,root_dir)
@@ -2219,11 +2255,11 @@ WOK
         end
         processing
       end
-      def dal
+      def ao
         pth=if defined? @rc['processing']['dal'] \
           and @rc['processing']['dal'].is_a?(String)
           "#{processing}/#{@rc['processing']['dal']}"
-        else "#{processing}/#{defaults[:processing_dal]}"
+        else "#{processing}/#{defaults[:processing_ao]}"
         end
         FileUtils::mkdir_p(pth) unless FileTest.directory?(pth)
         pth
@@ -2238,7 +2274,7 @@ WOK
         pth
       end
       def composite_file
-        pth=processing_path.dal  #"#{processing}/composite"
+        pth=processing_path.ao  #"#{processing}/composite"
         FileUtils::mkdir_p(pth) unless FileTest.directory?(pth)
         pth
       end
@@ -2736,6 +2772,18 @@ WOK
         ? @rc['program_select']['xml_viewer']
         : text_editor
       end
+      def docbook_viewer
+        ((defined? @rc['program_select']['xml_viewer']) \
+        && @rc['program_select']['xml_viewer'] =~/\S\S+/) \
+        ? @rc['program_select']['xml_viewer']
+        : text_editor
+      end
+      def fictionbook_viewer
+        ((defined? @rc['program_select']['xml_viewer']) \
+        && @rc['program_select']['xml_viewer'] =~/\S\S+/) \
+        ? @rc['program_select']['xml_viewer']
+        : text_editor
+      end
       def xml_editor
         xml_viewer
       end
@@ -2978,53 +3026,71 @@ WOK
       ? (SiSU_Env::InfoEnv.new(@opt.fns))
       : (SiSU_Env::InfoEnv.new('dummy.sst')))
       ft=[]
-      if @opt.act[:dal][:set]==:on
+      if @opt.act[:ao][:set]==:on
         @md=SiSU_Param::Parameters.new(@opt).get
         if @md \
         and defined? @md.fn \
         and @md.fn        # used for by_language_code?
-          if @md.opt.act[:html][:set]==:on                  #% --html, -h -H
+          if @md.opt.act[:html][:set]==:on                 #% --html, -h -H
             ft << @md.fn[:html]
           end
-          if @md.opt.act[:concordance][:set]==:on           #% --concordance, -w
+          if @md.opt.act[:concordance][:set]==:on          #% --concordance, -w
             ft << @md.fn[:concordance]
           end
-          if @md.opt.act[:manifest][:set]==:on              #% --manifest, -y
+          if @md.opt.act[:manifest][:set]==:on             #% --manifest, -y
             ft << @md.fn[:manifest]
           end
-          if @md.opt.act[:txt][:set]==:on                   #% --txt, -t -a
+          if @md.opt.act[:txt][:set]==:on                  #% --txt, -t -a
             ft << @md.fn[:plain]
           end
-          if @md.opt.act[:xhtml][:set]==:on                 #% --xhtml, -b xhtml
+          if @md.opt.act[:txt_textile][:set]==:on          #% --textile
+            ft << @md.fn[:txt_textile]
+          end
+          if @md.opt.act[:txt_asciidoc][:set]==:on         #% --asciidoc
+            ft << @md.fn[:txt_asciidoc]
+          end
+          if @md.opt.act[:txt_markdown][:set]==:on         #% --markdown
+            ft << @md.fn[:txt_markdown]
+          end
+          if @md.opt.act[:txt_rst][:set]==:on              #% --rst, --rest
+            ft << @md.fn[:txt_rst]
+          end
+          if @md.opt.act[:xhtml][:set]==:on                #% --xhtml, -b xhtml
             ft << @md.fn[:xhtml]
           end
-          if @md.opt.act[:epub][:set]==:on                  #% --epub, -e
+          if @md.opt.act[:epub][:set]==:on                 #% --epub, -e
             ft << @md.fn[:epub]
           end
-          if @md.opt.act[:manpage][:set]==:on               #% --manpage, -i
+          if @md.opt.act[:manpage][:set]==:on              #% --manpage, -i
             ft << @md.fn[:manpage]
           end
-          if @md.opt.act[:hash_digests][:set]==:on          #% --hash-digests, -N digest tree
+          if @md.opt.act[:hash_digests][:set]==:on         #% --hash-digests, -N digest tree
             ft << @md.fn[:digest]
           end
-          if @md.opt.act[:odt][:set]==:on                   #% --odt, -o opendocument
+          if @md.opt.act[:odt][:set]==:on                  #% --odt, -o opendocument
             ft << @md.fn[:odf]
           end
-          if @md.opt.act[:pdf][:set]==:on                   #% --pdf-l --pdf, -p latex/ texpdf
+          if @md.opt.act[:pdf][:set]==:on                  #% --pdf-l --pdf, -p latex/ texpdf
             ft << @md.fn[:pdf_l] << @md.fn[:pdf_p]
           end
           if @md.opt.act[:share_source][:set]==:on
             ft << @md.fns
           end
-          if @md.opt.act[:sisupod][:set]==:on               #% --sisupod, -S make sisupod
+          if @md.opt.act[:sisupod][:set]==:on              #% --sisupod, -S make sisupod
             ft << @md.fn[:sisupod]
           end
-          if @md.opt.act[:xml_sax][:set]==:on               #% --xml-sax, -x xml sax type
+          if @md.opt.act[:xml_sax][:set]==:on              #% --xml-sax, -x xml sax type
             ft << @md.fn[:sax]
           end
-          if @md.opt.act[:xml_dom][:set]==:on               #% --xml-dom, -X xml dom type
+          if @md.opt.act[:xml_dom][:set]==:on              #% --xml-dom, -X xml dom type
             ft << @md.fn[:dom]
           end
+          if @md.opt.act[:xml_docbook_book][:set]==:on     #% --xml-docbook-book
+            ft << @md.fn[:xml_docbook_book]
+          end
+          if @md.opt.act[:xml_fictionbook][:set]==:on      #% --xml-fictionbook
+            ft << @md.fn[:xml_fictionbook]
+          end
           if @md.opt.act[:xml_scaffold_structure_sisu][:set]==:on          #% --xml-scaffold --xml-scaffold-sisu
             ft << @md.fn[:xml_scaffold_structure_sisu]
           end
@@ -3033,48 +3099,66 @@ WOK
           end
           @fnb=@md.fnb
         else                                                                     # still needed where/when param is not parsed
-          if @opt.act[:html][:set]==:on                  #% --html, -h -H
+          if @opt.act[:html][:set]==:on                    #% --html, -h -H
             ft << '.html' << '.html.??'
           end
-          if @opt.act[:concordance][:set]==:on           #% --concordance, -w
+          if @opt.act[:concordance][:set]==:on             #% --concordance, -w
             ft << 'concordance.html' << '??.concordance.html' << 'concordance.??.html'
           end
-          if @opt.act[:manifest][:set]==:on              #% --manifest, -y
+          if @opt.act[:manifest][:set]==:on                #% --manifest, -y
             ft << 'sisu_manifest.html' << '??.sisu_manifest.html' << 'sisu_manifest.??.html'
           end
-          if @opt.act[:txt][:set]==:on                   #% --txt, -t -a
+          if @opt.act[:txt][:set]==:on                     #% --txt, -t -a
+            ft << 'plain.txt' << '??.plain.txt' << 'plain.??.txt'
+          end
+          if @opt.act[:txt_textile][:set]==:on             #% --textile
+            ft << 'plain.txt' << '??.plain.txt' << 'plain.??.txt'
+          end
+          if @opt.act[:txt_asciidoc][:set]==:on            #% --asciidoc
+            ft << 'plain.txt' << '??.plain.txt' << 'plain.??.txt'
+          end
+          if @opt.act[:txt_markdown][:set]==:on            #% --markdown
+            ft << 'plain.txt' << '??.plain.txt' << 'plain.??.txt'
+          end
+          if @opt.act[:txt_rst][:set]==:on                 #% --rst, --rest
             ft << 'plain.txt' << '??.plain.txt' << 'plain.??.txt'
           end
-          if @opt.act[:xhtml][:set]==:on                 #% --xhtml, -b xhtml
+          if @opt.act[:xhtml][:set]==:on                   #% --xhtml, -b xhtml
             ft << 'scroll.xhtml' << '??.scroll.xhtml' << 'scroll.??.xhtml'
           end
-          if @opt.act[:epub][:set]==:on                  #% --epub, -e
+          if @opt.act[:epub][:set]==:on                    #% --epub, -e
             ft  << @fnb << '.epub'
           end
-          if @opt.act[:manpage][:set]==:on               #% --manpage, -i
+          if @opt.act[:manpage][:set]==:on                 #% --manpage, -i
             ft << '.1' << '??.man.1' << 'man.??.1'
           end
-          if @opt.act[:hash_digests][:set]==:on          #% --hash-digests, -N digest tree
+          if @opt.act[:hash_digests][:set]==:on            #% --hash-digests, -N digest tree
             ft << 'digest.txt' << '??.digest.txt' << 'digest.??.txt'
           end
-          if @opt.act[:odt][:set]==:on                   #% --odt, -o opendocument
+          if @opt.act[:odt][:set]==:on                     #% --odt, -o opendocument
             ft << 'opendocument.odt' << '??.opendocument.odt' << 'opendocument.??.odt'
           end
-          if @opt.act[:pdf][:set]==:on                   #% --pdf-l --pdf, -p latex/ texpdf
+          if @opt.act[:pdf][:set]==:on                     #% --pdf-l --pdf, -p latex/ texpdf
             ft << 'landscape.pdf' << 'portrait.pdf' << '.pdf'
           end
           if @opt.act[:share_source][:set]==:on
             ft << '.sst' << '.ssi' << '.ssm'
           end
-          if @opt.act[:sisupod][:set]==:on               #% --sisupod, -S make sisupod
+          if @opt.act[:sisupod][:set]==:on                 #% --sisupod, -S make sisupod
             ft << '.zip'
           end
-          if @opt.act[:xml_sax][:set]==:on               #% --xml-sax, -x xml sax type
+          if @opt.act[:xml_sax][:set]==:on                 #% --xml-sax, -x xml sax type
             ft << 'sax.xml' << '??.sax.xml' << 'sax.??.xml'
           end
-          if @opt.act[:xml_dom][:set]==:on               #% --xml-dom, -X xml dom type
+          if @opt.act[:xml_dom][:set]==:on                 #% --xml-dom, -X xml dom type
             ft << 'dom.xml' << '??.dom.xml' << 'dom.??.xml'
           end
+          if @opt.act[:xml_docbook_book][:set]==:on        #% --xml-docbook-book
+            ft << 'docbook.xml' << '??.docbook.xml' << 'docbook.??.xml'
+          end
+          if @opt.act[:xml_fictionbook][:set]==:on         #% --xml-fictionbook
+            ft << 'fictionbook.xml' << '??.fictionbook.xml' << 'fictionbook.??.xml'
+          end
           if @opt.act[:xml_scaffold_structure_sisu][:set]==:on          #% --xml-scaffold --xml-scaffold-sisu
             ft << 'scaffold.xml' << '??.scaffold.xml' << 'scaffold.??.xml'
           end
@@ -3139,16 +3223,16 @@ WOK
       def remove_output
         if @opt.act[:maintenance][:set] == :on
           m=InfoFile.new(@opt.fnc)
-          tell=SiSU_Screen::Ansi.new(@opt.cmd,@opt.fns, 'remove maintenance files from: ' + @env.processing_path.dal)
+          tell=SiSU_Screen::Ansi.new(@opt.cmd,@opt.fns, 'remove maintenance files from: ' + @env.processing_path.ao)
           tell.warn unless @opt.cmd =~/q/
-          deletion(m.marshal.dal_content)
-          deletion(m.marshal.dal_idx_sst_rel_html_seg)
-          deletion(m.dal_idx_sst_rel)
-          deletion(m.dal_idx_html)
-          deletion(m.dal_idx_xhtml)
-          deletion(m.dal_metadata)
-          deletion(m.dal_map_nametags)
-          deletion(m.dal_map_ocn_htmlseg)
+          deletion(m.marshal.ao_content)
+          deletion(m.marshal.ao_idx_sst_rel_html_seg)
+          deletion(m.ao_idx_sst_rel)
+          deletion(m.ao_idx_html)
+          deletion(m.ao_idx_xhtml)
+          deletion(m.ao_metadata)
+          deletion(m.ao_map_nametags)
+          deletion(m.ao_map_ocn_htmlseg)
           deletion(m.html_tune)
         end
         md=SiSU_Param::Parameters.new(@opt).get
@@ -3378,7 +3462,7 @@ WOK
     end
     def rsync
       def document
-        f=(@opt.act[:dal][:set]==:on) \
+        f=(@opt.act[:ao][:set]==:on) \
         ? SiSU_Env::FileOp.new(@md)
         : nil
         if f
@@ -3704,29 +3788,29 @@ WOK
       FileUtils::mkdir_p(path) unless FileTest.directory?(path)
     end
     def marshal
-      def dal_content
-        "#{@env.processing_path.dal}/#{@fns}.content.rbm"
+      def ao_content
+        "#{@env.processing_path.ao}/#{@fns}.content.rbm"
       end
-      def dal_idx_sst_rel_html_seg
-        "#{@env.processing_path.dal}/#{@fns}.idx_sst.rbm"
+      def ao_idx_sst_rel_html_seg
+        "#{@env.processing_path.ao}/#{@fns}.idx_sst.rbm"
       end
-      def dal_idx_sst_rel #used by tex & odf
-        "#{@env.processing_path.dal}/#{@fns}.idx_raw.rbm"
+      def ao_idx_sst_rel #used by tex & odf
+        "#{@env.processing_path.ao}/#{@fns}.idx_raw.rbm"
       end
-      def dal_idx_html
-        "#{@env.processing_path.dal}/#{@fns}.idx_html.rbm"
+      def ao_idx_html
+        "#{@env.processing_path.ao}/#{@fns}.idx_html.rbm"
       end
-      def dal_idx_xhtml
-        "#{@env.processing_path.dal}/#{@fns}.idx_xhtml.rbm"
+      def ao_idx_xhtml
+        "#{@env.processing_path.ao}/#{@fns}.idx_xhtml.rbm"
       end
-      def dal_metadata
-        "#{@env.processing_path.dal}/#{@fns}.metadata.rbm"
+      def ao_metadata
+        "#{@env.processing_path.ao}/#{@fns}.metadata.rbm"
       end
-      def dal_map_nametags
-        "#{@env.processing_path.dal}/#{@fns}.map_name_tags.rbm"
+      def ao_map_nametags
+        "#{@env.processing_path.ao}/#{@fns}.map_name_tags.rbm"
       end
-      def dal_map_ocn_htmlseg
-        "#{@env.processing_path.dal}/#{@fns}.map_ocn_htmlseg.rbm"
+      def ao_map_ocn_htmlseg
+        "#{@env.processing_path.ao}/#{@fns}.map_ocn_htmlseg.rbm"
       end
       def html_tune
         "#{@env.processing_path.tune}/#{@fns}.marshal_tune"
@@ -3741,8 +3825,8 @@ WOK
     end
     def mkdir #check moved from FileOp, existing mkdir
       def processing
-        def dal
-          FileUtils::mkdir_p(@env.processing_path.dal) unless FileTest.directory?(@env.processing_path.dal)
+        def ao
+          FileUtils::mkdir_p(@env.processing_path.ao) unless FileTest.directory?(@env.processing_path.ao)
         end
         def tune
           FileUtils::mkdir_p(@env.processing_path.tune) unless FileTest.directory?(@env.processing_path.tune)
@@ -4255,7 +4339,7 @@ WOK
       FileUtils::mkdir_p(output_path.base.dir) unless FileTest.directory?(output_path.base.dir)
       FileUtils::mkdir_p("#{output_path.base.dir}/#{@md.fnb}") unless FileTest.directory?("#{output_path.base.dir}/#{@md.fnb}")
       FileUtils::mkdir_p("#{output_path.base.dir}/#{@env.path.style}") unless FileTest.directory?("#{output_path.base.dir}/#{@env.path.style}")
-      FileUtils::mkdir_p(@env.processing_path.dal) unless FileTest.directory?(@env.processing_path.dal)
+      FileUtils::mkdir_p(@env.processing_path.ao) unless FileTest.directory?(@env.processing_path.ao)
       FileUtils::mkdir_p(@env.processing_path.tune) unless FileTest.directory?(@env.processing_path.tune)
     end
     def path_rel_links
@@ -4372,6 +4456,30 @@ WOK
         fn=base_filename.txt
         make_file(path,fn)
       end
+      def textile
+        path=output_path.textile.dir
+        make_path(path)
+        fn=base_filename.textile
+        make_file(path,fn)
+      end
+      def asciidoc
+        path=output_path.asciidoc.dir
+        make_path(path)
+        fn=base_filename.asciidoc
+        make_file(path,fn)
+      end
+      def markdown
+        path=output_path.markdown.dir
+        make_path(path)
+        fn=base_filename.markdown
+        make_file(path,fn)
+      end
+      def rst
+        path=output_path.rst.dir
+        make_path(path)
+        fn=base_filename.rst
+        make_file(path,fn)
+      end
       def html_scroll
         pth=output_path.html.dir
         make_path(pth)
@@ -4415,6 +4523,18 @@ WOK
         fn=base_filename.xml_dom
         make_file(path,fn)
       end
+      def xml_docbook_book
+        path=output_path.xml_docbook_book.dir
+        make_path(path)
+        fn=base_filename.xml_docbook_book
+        make_file(path,fn)
+      end
+      def xml_fictionbook
+        path=output_path.xml_fictionbook.dir
+        make_path(path)
+        fn=base_filename.xml_fictionbook
+        make_file(path,fn)
+      end
       def xml_scaffold_structure_sisu
         path=output_path.xml_scaffold_structure_sisu.dir
         make_path(path)
@@ -4493,6 +4613,42 @@ WOK
         end
         self
       end
+      def textile
+        def dir
+          output_path.textile.dir + '/' + base_filename.textile
+        end
+        def rel
+          output_path.textile.rel + '/' + base_filename.textile
+        end
+        self
+      end
+      def asciidoc
+        def dir
+          output_path.asciidoc.dir + '/' + base_filename.asciidoc
+        end
+        def rel
+          output_path.asciidoc.rel + '/' + base_filename.asciidoc
+        end
+        self
+      end
+      def markdown
+        def dir
+          output_path.markdown.dir + '/' + base_filename.markdown
+        end
+        def rel
+          output_path.markdown.rel + '/' + base_filename.markdown
+        end
+        self
+      end
+      def rst
+        def dir
+          output_path.rst.dir + '/' + base_filename.rst
+        end
+        def rel
+          output_path.rst.rel + '/' + base_filename.rst
+        end
+        self
+      end
       def html_scroll
         def dir
           output_path.html_scroll.dir + '/' + base_filename.html_scroll
@@ -4589,6 +4745,24 @@ WOK
         end
         self
       end
+      def xml_docbook_book
+        def dir
+          output_path.xml_docbook.dir + '/' + base_filename.xml_docbook_book
+        end
+        def rel
+          output_path.xml_docbook.rel + '/' + base_filename.xml_docbook_book
+        end
+        self
+      end
+      def xml_fictionbook
+        def dir
+          output_path.xml_fictionbook.dir + '/' + base_filename.xml_fictionbook
+        end
+        def rel
+          output_path.xml_fictionbook.rel + '/' + base_filename.xml_fictionbook
+        end
+        self
+      end
       def xml_scaffold_structure_sisu
         def dir
           output_path.xml.dir + '/' + base_filename.xml_scaffold_structure_sisu
@@ -4784,6 +4958,78 @@ WOK
         end
         i18n(fnh)
       end
+      def textile(fh=nil)
+        fh=default_hash_build(fh,Sfx[:txt_textile])
+        fh[:lng]=lang_code?(fh[:lng])
+        fnh=if output_dir_structure.by_filename?
+          {
+            fn: 'plain',
+            ft: fh[:ft],
+            lng: fh[:lng],
+           }
+         else
+          {
+            fn: fh[:fn],
+            ft: fh[:ft],
+            lng: fh[:lng],
+          }
+        end
+        i18n(fnh)
+      end
+      def asciidoc(fh=nil)
+        fh=default_hash_build(fh,Sfx[:txt_asciidoc])
+        fh[:lng]=lang_code?(fh[:lng])
+        fnh=if output_dir_structure.by_filename?
+          {
+            fn: 'plain',
+            ft: fh[:ft],
+            lng: fh[:lng],
+           }
+         else
+          {
+            fn: fh[:fn],
+            ft: fh[:ft],
+            lng: fh[:lng],
+          }
+        end
+        i18n(fnh)
+      end
+      def markdown(fh=nil)
+        fh=default_hash_build(fh,Sfx[:txt_markdown])
+        fh[:lng]=lang_code?(fh[:lng])
+        fnh=if output_dir_structure.by_filename?
+          {
+            fn: 'plain',
+            ft: fh[:ft],
+            lng: fh[:lng],
+           }
+         else
+          {
+            fn: fh[:fn],
+            ft: fh[:ft],
+            lng: fh[:lng],
+          }
+        end
+        i18n(fnh)
+      end
+      def rst(fh=nil)
+        fh=default_hash_build(fh,Sfx[:txt_rst])
+        fh[:lng]=lang_code?(fh[:lng])
+        fnh=if output_dir_structure.by_filename?
+          {
+            fn: 'plain',
+            ft: fh[:ft],
+            lng: fh[:lng],
+           }
+         else
+          {
+            fn: fh[:fn],
+            ft: fh[:ft],
+            lng: fh[:lng],
+          }
+        end
+        i18n(fnh)
+      end
       def html_scroll(fh=nil)
         fh=default_hash_build(fh,Sfx[:html])
         fh[:lng]=lang_code?(fh[:lng])
@@ -4952,6 +5198,42 @@ WOK
         end
         i18n(fnh)
       end
+      def xml_docbook_book(fh=nil)
+        fh=default_hash_build(fh,Sfx[:xml_docbook_book])
+        fh[:lng]=lang_code?(fh[:lng])
+        fnh=if output_dir_structure.by_filename?
+          {
+            fn: 'scroll',
+            ft: fh[:ft],
+            lng: fh[:lng],
+          }
+        else
+          {
+            fn: fh[:fn],
+            ft: fh[:ft],
+            lng: fh[:lng],
+          }
+        end
+        i18n(fnh)
+      end
+      def xml_fictionbook(fh=nil)
+        fh=default_hash_build(fh,Sfx[:xml_fictionbook])
+        fh[:lng]=lang_code?(fh[:lng])
+        fnh=if output_dir_structure.by_filename?
+          {
+            fn: 'scroll',
+            ft: fh[:ft],
+            lng: fh[:lng],
+          }
+        else
+          {
+            fn: fh[:fn],
+            ft: fh[:ft],
+            lng: fh[:lng],
+          }
+        end
+        i18n(fnh)
+      end
       def xml_scaffold_structure_sisu(fh=nil)
         fh=default_hash_build(fh,Sfx[:xml_scaffold_structure_sisu])
         fh[:lng]=lang_code?(fh[:lng])
@@ -5560,6 +5842,90 @@ WOK
         end
         self
       end
+      def textile
+        def ft
+         'textile_CONSTRUCTION_ZONE'
+        end
+        def dir
+          set_path(ft).dir.abc
+        end
+        def url
+          set_path(ft).url.abc
+        end
+        def rel
+          set_path(ft).rel.abc
+        end
+        def rcp
+          set_path(ft).rcp.abc
+        end
+        def rel_sm
+          set_path(ft).rel_sm.ab
+        end
+        self
+      end
+      def asciidoc
+        def ft
+         'asciidoc_CONSTRUCTION_ZONE'
+        end
+        def dir
+          set_path(ft).dir.abc
+        end
+        def url
+          set_path(ft).url.abc
+        end
+        def rel
+          set_path(ft).rel.abc
+        end
+        def rcp
+          set_path(ft).rcp.abc
+        end
+        def rel_sm
+          set_path(ft).rel_sm.ab
+        end
+        self
+      end
+      def markdown
+        def ft
+         'markdown_CONSTRUCTION_ZONE'
+        end
+        def dir
+          set_path(ft).dir.abc
+        end
+        def url
+          set_path(ft).url.abc
+        end
+        def rel
+          set_path(ft).rel.abc
+        end
+        def rcp
+          set_path(ft).rcp.abc
+        end
+        def rel_sm
+          set_path(ft).rel_sm.ab
+        end
+        self
+      end
+      def rst
+        def ft
+         'rst_CONSTRUCTION_ZONE'
+        end
+        def dir
+          set_path(ft).dir.abc
+        end
+        def url
+          set_path(ft).url.abc
+        end
+        def rel
+          set_path(ft).rel.abc
+        end
+        def rcp
+          set_path(ft).rcp.abc
+        end
+        def rel_sm
+          set_path(ft).rel_sm.ab
+        end
+        self
+      end
       def html_scroll
         def ft
          'html'
@@ -5759,6 +6125,102 @@ WOK
         xml
         self
       end
+      def xml_docbook
+        def ft
+         'docbook_CONSTRUCTION_ZONE'
+        end
+        def dir
+          set_path(ft).dir.abc
+        end
+        def url
+          set_path(ft).url.abc
+        end
+        def rel
+          set_path(ft).rel.abc
+        end
+        def rcp
+          set_path(ft).rcp.abc
+        end
+        def rel_sm
+          set_path(ft).rel_sm.ab
+        end
+        def rel_image
+          '../../_sisu/image'
+        end
+        self
+      end
+      def xml_docbook_article
+        def ft
+         'docbook'
+        end
+        def dir
+          set_path(ft).dir.abc
+        end
+        def url
+          set_path(ft).url.abc
+        end
+        def rel
+          set_path(ft).rel.abc
+        end
+        def rcp
+          set_path(ft).rcp.abc
+        end
+        def rel_sm
+          set_path(ft).rel_sm.ab
+        end
+        def rel_image
+          '../../_sisu/image'
+        end
+        self
+      end
+      def xml_docbook_book
+        def ft
+         'docbook_CONSTRUCTION_ZONE'
+        end
+        def dir
+          set_path(ft).dir.abc
+        end
+        def url
+          set_path(ft).url.abc
+        end
+        def rel
+          set_path(ft).rel.abc
+        end
+        def rcp
+          set_path(ft).rcp.abc
+        end
+        def rel_sm
+          set_path(ft).rel_sm.ab
+        end
+        def rel_image
+          '../../_sisu/image'
+        end
+        self
+      end
+      def xml_fictionbook
+        def ft
+         'fictionbook_CONSTRUCTION_ZONE'
+        end
+        def dir
+          set_path(ft).dir.abc
+        end
+        def url
+          set_path(ft).url.abc
+        end
+        def rel
+          set_path(ft).rel.abc
+        end
+        def rcp
+          set_path(ft).rcp.abc
+        end
+        def rel_sm
+          set_path(ft).rel_sm.ab
+        end
+        def rel_image
+          '../../_sisu/image'
+        end
+        self
+      end
       def xml_scaffold_structure_sisu
         def ft
          'sisu.scaffold.xml'
@@ -6130,17 +6592,17 @@ WOK
       File.new('/tmp/errorlog.sisu','w+')
     end
     def file_txt
-      File.new("#{@env.processing_path.dal}/#{@fns}.txt",'w+')
+      File.new("#{@env.processing_path.ao}/#{@fns}.txt",'w+')
     end
     def file_debug
-      File.new("#{@env.processing_path.dal}/#{@fns}.debug.txt",'w+')
+      File.new("#{@env.processing_path.ao}/#{@fns}.debug.txt",'w+')
     end
     def metaverse
       def file_meta
-        File.new("#{@env.processing_path.dal}/#{@fns}.meta",'w+')
+        File.new("#{@env.processing_path.ao}/#{@fns}.meta",'w+')
       end
       def file_meta_idx_html
-        File.new("#{@env.processing_path.dal}/#{@fns}.idx.html",'w+')
+        File.new("#{@env.processing_path.ao}/#{@fns}.idx.html",'w+')
       end
       self
     end
@@ -6148,7 +6610,7 @@ WOK
       File.new("#{Dir.pwd}/#{@fns}.fn",'w+')
     end
     def meta
-      "#{@env.processing_path.dal}/#{@fns}.meta"
+      "#{@env.processing_path.ao}/#{@fns}.meta"
     end
     def file_semantic
       filename_semantic="./semantic.yaml"
diff --git a/lib/sisu/v5/texinfo.rb b/lib/sisu/v5/texinfo.rb
index 623cee2d..2e92268a 100644
--- a/lib/sisu/v5/texinfo.rb
+++ b/lib/sisu/v5/texinfo.rb
@@ -116,7 +116,7 @@ module SiSU_TexInfo
         : SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'TexInfo',tool).green_title_hi
         @md=SiSU_Param::Parameters.new(@opt).get
         directories
-        @marshalfile=SiSU_Env::InfoFile.new(@opt.fns).marshal.dal_content
+        @marshalfile=SiSU_Env::InfoFile.new(@opt.fns).marshal.ao_content
         if FileTest.file?(@marshalfile)==true
           File.open(@marshalfile) { |f| @@tuned_file=Marshal.load(f)}
           #tell.meta_verse_skipped if @opt.cmd =~/[vVM]/
diff --git a/lib/sisu/v5/texpdf.rb b/lib/sisu/v5/texpdf.rb
index 2dc3e860..bf72a1a6 100644
--- a/lib/sisu/v5/texpdf.rb
+++ b/lib/sisu/v5/texpdf.rb
@@ -81,8 +81,8 @@ module SiSU_TeX
     require_relative 'sysenv'                           # sysenv.rb
       include SiSU_Env
     include SiSU_Viz
-    require_relative 'dal'                              # dal.rb
-      include SiSU_DAL
+    require_relative 'ao'                               # ao.rb
+      include SiSU_AO
     include SiSU_TeX
     def initialize(opt)
       @opt=opt
@@ -126,9 +126,9 @@ module SiSU_TeX
         $flag=@md.opt.cmd                                                          #introduced to pass 0 for no object citation numbers... to texpdf_format
         directories
                                                                                #% needed needs to be reprogrammed !!!
-        dal_array=SiSU_DAL::Source.new(@opt).get # dal file drawn here
+        ao_array=SiSU_AO::Source.new(@opt).get # ao file drawn here
         SiSU_TeX::Source::LaTeXcreate.new(@particulars).songsheet
-        dal_array=''
+        ao_array=''
         pwd=Dir.pwd
         SiSU_TeX::Source::LaTeXtoPdf.new(@md,@particulars.env).latexrun_selective
         Dir.chdir(pwd)
@@ -339,7 +339,7 @@ module SiSU_TeX
         @particulars=particulars
         @md=@particulars.md
         @env=SiSU_Env::InfoEnv.new(@md.fns) #@env=@particulars.env
-        @data=@particulars.dal_array # dal file drawn here
+        @data=@particulars.ao_array # ao file drawn here
         @st={ tex: {} }
         @tex_ml=SiSU_TeX_Pdf::UseTeX.new(@md)
         @vz=SiSU_Viz::Defaults.new
@@ -1042,7 +1042,7 @@ module SiSU_TeX
                   file[:landscape].puts morph,"\n"
                 end
               end
-            elsif morph.class.inspect =~ /SiSU_DAL_DocumentStructure/ \
+            elsif morph.class.inspect =~ /SiSU_AO_DocumentStructure/ \
             and morph.tmp \
             and morph.tmp.is_a?(String)
               if morph.is !=:code \
diff --git a/lib/sisu/v5/texpdf_format.rb b/lib/sisu/v5/texpdf_format.rb
index b20105af..556de8a6 100644
--- a/lib/sisu/v5/texpdf_format.rb
+++ b/lib/sisu/v5/texpdf_format.rb
@@ -168,7 +168,7 @@ module SiSU_TeX_Pdf
           end
           rows_new << r
         end
-        table=rows_new.join #@dob[:dal].obj=rows.join
+        table=rows_new.join #@dob[:ao].obj=rows.join
         ocn_display(@dob) + start_table + table + " #{end_table}\n\\end{tiny}"
       else ''
       end
@@ -213,7 +213,7 @@ module SiSU_TeX_Pdf
           end
           rows_new << r
         end
-        table=rows_new.join #@dob[:dal].obj=rows.join
+        table=rows_new.join #@dob[:ao].obj=rows.join
         ocn_display(@dob) + start_table + table + " #{end_table}\n\\end{tiny}"
       else ''
       end
diff --git a/lib/sisu/v5/txt_asciidoc.rb b/lib/sisu/v5/txt_asciidoc.rb
new file mode 100644
index 00000000..114252b1
--- /dev/null
+++ b/lib/sisu/v5/txt_asciidoc.rb
@@ -0,0 +1,588 @@
+# encoding: utf-8
+=begin
+
+ * Name: SiSU
+
+ * Description: a framework for document structuring, publishing and search
+
+ * Author: Ralph Amissah
+
+ * Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+   2007, 2008, 2009, 2010, 2011, 2012, 2013 Ralph Amissah, All Rights Reserved.
+
+ * License: GPL 3 or later:
+
+   SiSU, a framework for document structuring, publishing and search
+
+   Copyright (C) Ralph Amissah
+
+   This program is free software: you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by the Free
+   Software Foundation, either version 3 of the License, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful, but WITHOUT
+   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+   FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+   more details.
+
+   You should have received a copy of the GNU General Public License along with
+   this program. If not, see <http://www.gnu.org/licenses/>.
+
+   If you have Internet connection, the latest version of the GPL should be
+   available at these locations:
+   <http://www.fsf.org/licensing/licenses/gpl.html>
+   <http://www.gnu.org/licenses/gpl.html>
+
+   <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+ * SiSU uses:
+   * Standard SiSU markup syntax,
+   * Standard SiSU meta-markup syntax, and the
+   * Standard SiSU object citation numbering and system
+
+ * Hompages:
+   <http://www.jus.uio.no/sisu>
+   <http://www.sisudoc.org>
+
+ * Download:
+   <http://www.sisudoc.org/sisu/en/SiSU/download.html>
+
+ * 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/plaintext_asciidoc.rb;hb=HEAD>
+
+ * Ralph Amissah
+   <ralph@amissah.com>
+   <ralph.amissah@gmail.com>
+
+ ** Description: plaintext (smarttext) generation, asciidoc
+
+=end
+module SiSU_Txt_asciiDoc
+  require_relative 'ao'                                 # ao.rb
+  require_relative 'sysenv'                             # sysenv.rb
+    include SiSU_Env
+  require_relative 'shared_metadata'                    # shared_metadata.rb
+  require_relative 'txt_shared'                         # txt_shared.rb
+  include SiSU_Param
+  include SiSU_Viz
+  @@alt_id_count,@@alt_id_count,@@tablehead,@@number_of_cols=0,0,0,0
+  @@tablefoot=''
+  class Source
+    def initialize(opt)
+      @opt=opt
+      unless @opt.fns =~/(.+?)\.(?:-|ssm\.)?sst$/
+        puts "#{sf} not a processed file type"
+      end
+    end
+    def read
+      begin
+        md=SiSU_Param::Parameters.new(@opt).get
+        env=SiSU_Env::InfoEnv.new(@opt.fns)
+        unless @opt.act[:quiet][:set]==:on
+          tool=(@opt.act[:verbose][:set]==:on \
+          || @opt.act[:verbose_plus][:set]==:on \
+          || @opt.act[:maintenance][:set]==:on) \
+          ? "#{env.program.text_editor} #{md.file.output_path.asciidoc.dir}/#{md.file.base_filename.asciidoc}"
+          : "[#{@opt.f_pth[:lng_is]}] #{@opt.fno}"
+          (@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],'asciiDoc (plaintext utf-8)',tool).green_hi_blue
+          : SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'asciiDoc (plaintext utf-8)',tool).green_title_hi
+          if (@opt.act[:verbose_plus][:set]==:on \
+          || @opt.act[:maintenance][:set]==:on)
+            SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],@opt.fns,"#{md.file.output_path.asciidoc.dir}/#{md.file.base_filename.asciidoc}").flow
+          end
+        end
+        ao_array=SiSU_AO::Source.new(@opt).get # ao file drawn here
+        wrap_width=if defined? md.make.plaintext_wrap \
+        and md.make.plaintext_wrap
+          md.make.plaintext_wrap
+        elsif defined? env.plaintext_wrap \
+        and env.plaintext_wrap
+          env.plaintext_wrap
+        else 78
+        end
+        #wrap_width=(defined? md.make.plaintext_wrap) ? md.make.plaintext_wrap : 78
+        SiSU_Txt_asciiDoc::Source::Scroll.new(md,ao_array,wrap_width).songsheet
+      rescue
+        SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
+          __LINE__.to_s + ':' + __FILE__
+        end
+      ensure
+      end
+    end
+    private
+    class Scroll <Source
+      require_relative 'defaults'                       # defaults.rb
+      require_relative 'txt_shared'                     # txt_shared.rb
+        include SiSU_TextUtils
+      @@endnotes={ para: [], end: [] }
+      def initialize(md,data,wrap_width)
+        @md,@data,@wrap_width=md,data,wrap_width
+        @env=SiSU_Env::InfoEnv.new(@md.fns)
+        @brace_url=SiSU_Viz::Defaults.new.url_decoration
+        @tab="\t"
+        @@endnotes_=case md.opt.mod.inspect
+        when /--footnote/; false
+        when /--endnote/; true
+        else true
+        end
+        @plaintext={ body: [], open: [], close: [], head: [], metadata: [], tail: [] }
+      end
+      def songsheet
+        plaintext=markup(@data)
+        publish(plaintext)
+      end
+      def break_line
+        "\n"
+      end
+      # Used for extraction of endnotes from paragraphs
+      def extract_endnotes(dob='')
+        notes=dob.obj.scan(/(?:#{Mx[:en_a_o]}|#{Mx[:en_b_o]})([\d*+]+\s+.+?)(?:#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/)
+        @n=[]
+        notes.flatten.each do |n| #high cost to deal with <br> appropriately within plaintext, consider
+          n=n.dup.to_s
+          if n =~/#{Mx[:br_line]}|#{Mx[:br_nl]}/
+            fix = n.split(/#{Mx[:br_line]}|#{Mx[:br_nl]}/) #watch #added
+            fix.each do |x|
+              unless x.empty?; @n << x
+              end
+            end
+          else                 @n << n
+          end
+        end
+        notes=@n.flatten
+        notes.each do |e|
+          util=(e.to_s =~/^\[[\d*+]+\]:/) \
+          ? (SiSU_TextUtils::Wrap.new(e.to_s,@wrap_width,4,1))
+          : (SiSU_TextUtils::Wrap.new(e.to_s,@wrap_width,1,1))
+          wrap=util.line_wrap
+          wrap=if wrap =~ /^\s*[\d*+]+\s+.+?\s*\Z/m
+            wrap.gsub(/^(\s*)([\d*+]+)\s+(.+?)\s*\Z/m, <<-GSUB
+\\1[\\2]: \\3
+              GSUB
+            )
+          else
+            wrap.gsub(/^(.+)\Z/m, <<-GSUB
+\\1
+              GSUB
+            )
+          end
+          @@endnotes[:para] << "-#{wrap}"
+          @@endnotes[:end] << '' << wrap
+        end
+        @@endnotes
+      end
+      def plaintext_metadata
+        array=SiSU_Metadata::Summary.new(@md).plaintext.metadata
+        array.each do |meta|
+          tag,inf=meta.scan(/^.+?:\s|.+/)
+          if tag and inf
+            util=SiSU_TextUtils::Wrap.new(inf,@wrap_width,15,1)
+            txt=util.line_wrap
+            @plaintext[:metadata] <<<<WOK
+
+#{@tab}#{tag}#{txt}
+WOK
+          end
+        end
+      end
+      def plaintext_tail
+#       env=SiSU_Env::InfoEnv.new(@md.fns)
+        vz=SiSU_Viz::Defaults.new
+        generator="Generated by: #{@md.sisu_version[:project]} #{@md.sisu_version[:version]} of #{@md.sisu_version[:date_stamp]} (#{@md.sisu_version[:date]})"  if @md.sisu_version[:version]
+        lastdone="Last Generated on: #{Time.now}"
+        rubyv="Ruby version: #{@md.ruby_version}"
+        sc=if @md.sc_info
+          "Source file:    #{@md.sc_filename}#{break_line}Version number: #{@md.sc_number}#{break_line}Version date:   #{@md.sc_date}#{break_line}"
+        else ''
+        end
+        @plaintext[:tail] <<<<WOK
+#{break_line}
+plaintext (plain text):
+   #{@md.file.output_path.asciidoc.url}/#{@md.file.base_filename.asciidoc}#{break_line}
+Other versions of this document: #{break_line}
+manifest:
+   #{@md.file.output_path.manifest.url}/#{@md.file.base_filename.manifest}#{break_line}
+at:
+   #{@md.file.output_path.base.url}#{break_line}
+
+#{sc}
+* #{generator}
+* #{rubyv}
+* #{lastdone}
+* SiSU #{vz.url_sisu}
+WOK
+      end
+      def decorate
+        def heading
+          def inline
+            def l1
+              '=='
+            end
+            def l2
+              '==='
+            end
+            def l3
+              '===='
+            end
+            def l4
+              '====='
+            end
+            def l5
+              '' #'======' #logical
+            end
+            def l6
+              '' #'=======' #logical
+            end
+            self
+          end
+          def underscore
+            def l1
+              '-'
+            end
+            def l2
+              '~'
+            end
+            def l3
+              '^'
+            end
+            def l4
+              '+'
+            end
+            def l5
+              '' #'.' #proposed
+            end
+            def l6
+              '' #'.' #proposed
+            end
+            self
+          end
+          self
+        end
+        def bold
+          def open
+            '*'
+          end
+          def close
+            '*'
+          end
+          self
+        end
+        def italics
+          def open
+            '_'
+          end
+          def close
+            '_'
+          end
+          self
+        end
+        def underscore
+          def open
+            ''
+          end
+          def close
+            ''
+          end
+          self
+        end
+       #def emphasis
+       #  def open
+       #    ''
+       #  end
+       #  def close
+       #    ''
+       #  end
+       #  self
+       #end
+        def cite
+          def open
+            '"'
+          end
+          def close
+            '"'
+          end
+          self
+        end
+        def insert
+          def open
+            ''
+          end
+          def close
+            ''
+          end
+          self
+        end
+        def strike
+          def open
+            '-'
+          end
+          def close
+            '-'
+          end
+          self
+        end
+        def superscript
+          def open
+            '^'
+          end
+          def close
+            '^'
+          end
+          self
+        end
+        def subscript
+          def open
+            '~'
+          end
+          def close
+            '~'
+          end
+          self
+        end
+        def hilite #bold
+          def open
+            '*'
+          end
+          def close
+            '*'
+          end
+          self
+        end
+        def monospace
+          def open
+            '+'
+          end
+          def close
+            '+'
+          end
+          self
+        end
+        self
+      end
+      def heading_decorated_inline(dob)
+        if dob.is==:heading
+          heading_inline = case dob.lc
+          when 1 then decorate.heading.inline.l1
+          when 2 then decorate.heading.inline.l2
+          when 3 then decorate.heading.inline.l3
+          when 4 then decorate.heading.inline.l4
+          when 5 then decorate.heading.inline.l5
+          when 6 then decorate.heading.inline.l6
+          end
+          heading_inline + ' ' +  dob.obj + ' ' + heading_inline
+        end
+      end
+      def heading_decorated_underscore(dob,times,p_num)
+        if dob.is==:heading
+          #times=@wrap_width if times > @wrap_width
+          case dob.lc
+          when 1 then decorate.heading.underscore.l1*times + p_num << break_line*2
+          when 2 then decorate.heading.underscore.l2*times + p_num << break_line*2
+          when 3 then decorate.heading.underscore.l3*times + p_num << break_line*2
+          when 4 then decorate.heading.underscore.l4*times + p_num << break_line*2
+          when 5 then decorate.heading.underscore.l5*times + p_num << break_line*2
+          when 6 then decorate.heading.underscore.l6*times + p_num << break_line*2
+          end
+        end
+      end
+      def plaintext_structure(dob='',p_num='') #% Used to extract the structure of a document
+        heading_decoration=:inline #(:inline|:underscore) #switch heading decoration between inline & underscore options
+        util=nil
+        wrapped=if dob.is==:para \
+        || dob.is==:heading
+          if dob.is==:heading
+            util=(heading_decoration== :inline) \
+            ? (SiSU_TextUtils::Wrap.new(heading_decorated_inline(dob),@wrap_width,0))
+            : (SiSU_TextUtils::Wrap.new(dob.obj,@wrap_width,0))
+          elsif dob.is==:para
+            if dob.hang \
+            and dob.hang =~/[0-9]/ \
+            and dob.indent != dob.hang
+              util=SiSU_TextUtils::Wrap.new(dob.obj,@wrap_width,dob.indent.to_i*2,dob.hang.to_i*2)
+              #util=SiSU_TextUtils::Wrap.new(dob.obj,@wrap_width,dob.hang.to_i*2,0)
+            elsif dob.indent =~/[1-9]/
+              util=if dob.bullet_
+                SiSU_TextUtils::Wrap.new("* #{dob.obj}",@wrap_width,dob.indent.to_i*2)
+              else SiSU_TextUtils::Wrap.new(dob.obj,@wrap_width,dob.indent.to_i*2)
+              end
+            else
+              util=if dob.bullet_
+                SiSU_TextUtils::Wrap.new("* #{dob.obj}",@wrap_width,0)
+              else SiSU_TextUtils::Wrap.new(dob.obj,@wrap_width,0)
+              end
+            end
+          else util=SiSU_TextUtils::Wrap.new(dob.obj,@wrap_width,0)
+          end
+          dob.is==:heading ? util.no_wrap_no_breaks : util.line_wrap
+        end
+        if heading_decoration== :underscore \
+        and dob.is==:heading
+          @plaintext[:body] << wrapped + p_num # main text, contents, body KEEP
+          @plaintext[:body] << heading_decorated_underscore(dob,wrapped.length,p_num)
+        else
+          @plaintext[:body] << wrapped + p_num << break_line # main text, contents, body KEEP
+        end
+        if @@endnotes[:para] \
+        and not @@endnotes_
+          @@endnotes[:para].each {|e| @plaintext[:body] << e << break_line}
+        elsif @@endnotes[:para] \
+        and @@endnotes_
+        end
+        @@endnotes[:para]=[]
+      end
+      def markup(data)                                                       # Used for major markup instructions
+        SiSU_Env::InfoEnv.new(@md.fns)
+        @data_mod,@endnotes,@level,@cont,@copen,@plaintext_contents_close=Array.new(6){[]}
+        (0..6).each { |x| @cont[x]=@level[x]=false }
+        (4..6).each { |x| @plaintext_contents_close[x]='' }
+        plaintext_tail #($1,$2)
+        plaintext_metadata
+        table_message='[table conversion awaited, see other document formats]'
+        data.each do |dob|
+          dob.obj=dob.obj.gsub(/#{Mx[:gr_o]}Th?#{Mx[:tc_p]}.+/um,"#{break_line}#{table_message}"). #fix
+            gsub(/.+?#{Mx[:gl_o]}-##{Mx[:gl_c]}/,'').                              # remove dummy headings (used by html) #check also [~-]#
+            gsub(/#{Mx[:fa_bold_o]}(.+?)#{Mx[:fa_bold_c]}/,
+              "#{decorate.bold.open}\\1#{decorate.bold.close}").
+            gsub(/#{Mx[:fa_italics_o]}(.+?)#{Mx[:fa_italics_c]}/,
+              "#{decorate.italics.open}\\1#{decorate.italics.close}").
+            gsub(/#{Mx[:fa_underscore_o]}(.+?)#{Mx[:fa_underscore_c]}/,
+              "#{decorate.underscore.open}\\1#{decorate.underscore.close}").
+            gsub(/#{Mx[:fa_subscript_o]}(.+?)#{Mx[:fa_subscript_c]}/,
+              "#{decorate.subscript.open}\\1#{decorate.subscript.close}").
+            gsub(/#{Mx[:fa_superscript_o]}(.+?)#{Mx[:fa_superscript_c]}/,
+              "#{decorate.superscript.open}\\1#{decorate.superscript.close}").
+            gsub(/#{Mx[:fa_insert_o]}(.+?)#{Mx[:fa_insert_c]}/,
+              "#{decorate.insert.open}\\1#{decorate.insert.close}").
+            gsub(/#{Mx[:fa_cite_o]}(.+?)#{Mx[:fa_cite_c]}/,
+              "#{decorate.cite.open}\\1#{decorate.cite.close}").
+            gsub(/#{Mx[:fa_strike_o]}(.+?)#{Mx[:fa_strike_c]}/,
+              "#{decorate.strike.open}\\1#{decorate.strike.close}").
+            gsub(/#{Mx[:fa_monospace_o]}(.+?)#{Mx[:fa_monospace_c]}/,
+              "#{decorate.monospace.open}\\1#{decorate.monospace.close}")
+          unless dob.is==:code
+            dob.obj=dob.obj.gsub(/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}#{Mx[:rel_o]}\S+?#{Mx[:rel_c]}/,'\1').
+              gsub(/#{Mx[:url_o]}_(\S+?)#{Mx[:url_c]}/,'\1').
+              gsub(/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,'\1 [link: <\2>]').
+              gsub(/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}image/,'\1 [link: local image]').
+              gsub(/#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,"#{@brace_url.txt_open}\\1#{@brace_url.txt_close}")
+            extract_endnotes(dob)
+            dob.obj=dob.obj.gsub(/#{Mx[:en_a_o]}([\d*+]+)\s+(?:.+?)#{Mx[:en_a_c]}/,'[^\1]'). # endnote marker marked up
+              gsub(/#{Mx[:en_b_o]}([\d*+]+)\s+(?:.+?)#{Mx[:en_b_c]}/,'[^\1]'). # endnote marker marked up
+              gsub(/#{Mx[:gl_o]}(?:#lt|#060)#{Mx[:gl_c]}/,'<').
+              gsub(/#{Mx[:gl_o]}(?:#gt|#062)#{Mx[:gl_c]}/,'>').
+              gsub(/#{Mx[:gl_o]}#(?:038|amp)#{Mx[:gl_c]}/,'&').
+              gsub(/#{Mx[:gl_o]}#033#{Mx[:gl_c]}/,'!').
+              gsub(/#{Mx[:gl_o]}#035#{Mx[:gl_c]}/,'#').
+              gsub(/#{Mx[:gl_o]}#042#{Mx[:gl_c]}/,'*').
+              gsub(/#{Mx[:gl_o]}#045#{Mx[:gl_c]}/,'-').
+              gsub(/#{Mx[:gl_o]}#047#{Mx[:gl_c]}/,'/').
+              gsub(/#{Mx[:gl_o]}#095#{Mx[:gl_c]}/,'_').
+              gsub(/#{Mx[:gl_o]}#123#{Mx[:gl_c]}/,'{').
+              gsub(/#{Mx[:gl_o]}#125#{Mx[:gl_c]}/,'}').
+              gsub(/#{Mx[:gl_o]}#126#{Mx[:gl_c]}/,'~').
+              gsub(/#{Mx[:gl_o]}#169#{Mx[:gl_c]}/,'©').
+              gsub(/#{Mx[:gl_o]}#092#{Mx[:gl_c]}/,'\\')
+          end
+          dob.obj=if dob.of==:block                                   # watch
+            dob.obj.gsub(/#{Mx[:gl_o]}●#{Mx[:gl_c]}/m,"* ").
+              gsub(/\n?#{Mx[:br_line]}\n?|\n?#{Mx[:br_nl]}\n?/m,break_line)
+          else dob.obj.gsub(/\n?#{Mx[:br_line]}\n?|\n?#{Mx[:br_nl]}\n?/m,break_line*2)
+          end
+          if dob.is==:code
+            dob.obj=dob.obj.gsub(/(^|[^}])_([<>])/m,'\1\2'). # _> _<
+              gsub(/(^|[^}])_([<>])/m,'\1\2') # _<_<
+          end
+          dob.obj=dob.obj.gsub(/#{Mx[:url_o]}_(\S+?)#{Mx[:url_c]}/,'\1').
+            gsub(/<a href=".+?">(.+?)<\/a>/m,'\1').
+            gsub(/#{Mx[:mk_o]}:name#(\S+?)#{Mx[:mk_c]}/,'').                       # remove name links
+            gsub(/&nbsp;|#{Mx[:nbsp]}/,' ').                                       # decide on
+            gsub(/(?:^|[^_\\])#{Mx[:lnk_o]}(\S+?\.(?:png|jpg|gif)) .+?#{Mx[:lnk_c]}#{Mx[:url_o]}\S+?#{Mx[:url_c]}/,'    [ \1 ]'). #"[ #{dir.url.images_local}\/\\1 ]")
+            gsub(/(?:^|[^_\\])#{Mx[:lnk_o]}(\S+?\.(?:png|jpg|gif)) .+?#{Mx[:lnk_c]}image/,'    [ \1 ]').
+            gsub(/(?:^|[^_\\])\{\s*\S+?\.(?:png|jpg|gif)\s+.+?"(.*?)"\s*\}\S+/,'[image: "\1"]')
+          if dob.obj !~/(^#{Rx[:meta]}|#{Mx[:br_eof]}|#{Mx[:br_endnotes]})/
+            p_num=''
+            #ocn
+            if dob.is==:heading \
+            or dob.is==:para
+              plaintext_structure(dob,p_num)
+            elsif dob.is==:group \
+            or dob.is==:block \
+            or dob.is==:verse \
+            or dob.is==:code \
+            or dob.is==:table
+              @plaintext[:body] << dob.obj + p_num << break_line
+            elsif dob.is==:break
+              sp=' '
+              ln='-'
+              @plaintext[:body] <<=if dob.obj==Mx[:br_page] \
+              or dob.obj==Mx[:br_page_new] \
+              or dob.obj==Mx[:br_page_line]
+                "#{break_line}#{ln*40}#{break_line*2}"
+              elsif dob.obj ==Mx[:br_obj]
+                "#{break_line}#{sp*20}*  *  *#{break_line*2}"
+              end # following empty line (break_line) missing, fix
+            end
+            dob='' if (dob.obj =~/<a name="n\d+">/ \
+              and dob.obj =~/^(-\{{2}~\d+|<!e[:_]\d+!>)/) # -endnote
+            if dob ## Clean Prepared Text
+              dob.obj=dob.obj.gsub(/<!.+!>/,' ').
+                gsub(/<:\S+>/,' ')
+            end
+          end
+        end
+        @plaintext
+      end
+      def publish(plaintext)
+        divider='='
+        content=[]
+        content << plaintext[:open]
+        content << plaintext[:head]
+        content << plaintext[:body]
+        content << @@endnotes[:end] if @@endnotes_
+        content << "#{break_line}#{divider*@wrap_width}#{break_line}"
+        content << plaintext[:metadata]
+        content << "#{break_line}#{divider*@wrap_width}#{break_line}" if @md.stmp =~/\w+/ #not used?
+        content << plaintext[:tail]
+        Output.new(content,@md).asciidoc
+        @@endnotes={ para: [], end: [] }
+      end
+    end
+    class Output <Source
+      include SiSU_Param
+      include SiSU_Env
+      def initialize(content,md)
+        @content,@md=content,md
+      end
+      def asciidoc
+        file_plaintext=SiSU_Env::FileOp.new(@md).write_file.asciidoc
+        @sisu=[]
+        emptyline=0
+        @content.each do |para|                                                # this is a hack
+          if para.is_a?(Array) \
+          and para.length > 0
+            para.each do |line|
+              if line
+                line=line.gsub(/[ \t]+$/m,'').
+                  gsub(/^\A[ ]*\Z/m,'')
+                (line=~/^\A\Z/) \
+                ? (emptyline+=1)
+                : emptyline=0
+                if emptyline < 2                     #remove additional empty lines
+                  file_plaintext.puts line
+                end
+              end
+            end
+          else file_plaintext.puts para          #unix plaintext # /^([*=-]|\.){5}/
+          end
+        end
+        file_plaintext.close
+      end
+    end
+  end
+end
+__END__
diff --git a/lib/sisu/v5/txt_markdown.rb b/lib/sisu/v5/txt_markdown.rb
new file mode 100644
index 00000000..89ee022d
--- /dev/null
+++ b/lib/sisu/v5/txt_markdown.rb
@@ -0,0 +1,588 @@
+# encoding: utf-8
+=begin
+
+ * Name: SiSU
+
+ * Description: a framework for document structuring, publishing and search
+
+ * Author: Ralph Amissah
+
+ * Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+   2007, 2008, 2009, 2010, 2011, 2012, 2013 Ralph Amissah, All Rights Reserved.
+
+ * License: GPL 3 or later:
+
+   SiSU, a framework for document structuring, publishing and search
+
+   Copyright (C) Ralph Amissah
+
+   This program is free software: you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by the Free
+   Software Foundation, either version 3 of the License, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful, but WITHOUT
+   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+   FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+   more details.
+
+   You should have received a copy of the GNU General Public License along with
+   this program. If not, see <http://www.gnu.org/licenses/>.
+
+   If you have Internet connection, the latest version of the GPL should be
+   available at these locations:
+   <http://www.fsf.org/licensing/licenses/gpl.html>
+   <http://www.gnu.org/licenses/gpl.html>
+
+   <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+ * SiSU uses:
+   * Standard SiSU markup syntax,
+   * Standard SiSU meta-markup syntax, and the
+   * Standard SiSU object citation numbering and system
+
+ * Hompages:
+   <http://www.jus.uio.no/sisu>
+   <http://www.sisudoc.org>
+
+ * Download:
+   <http://www.sisudoc.org/sisu/en/SiSU/download.html>
+
+ * 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/plaintext_markdown.rb;hb=HEAD>
+
+ * Ralph Amissah
+   <ralph@amissah.com>
+   <ralph.amissah@gmail.com>
+
+ ** Description: plaintext (smarttext) generation, markdown
+
+=end
+module SiSU_Txt_Markdown
+  require_relative 'ao'                                 # ao.rb
+  require_relative 'sysenv'                             # sysenv.rb
+    include SiSU_Env
+  require_relative 'shared_metadata'                    # shared_metadata.rb
+  require_relative 'txt_shared'                         # txt_shared.rb
+  include SiSU_Param
+  include SiSU_Viz
+  @@alt_id_count,@@alt_id_count,@@tablehead,@@number_of_cols=0,0,0,0
+  @@tablefoot=''
+  class Source
+    def initialize(opt)
+      @opt=opt
+      unless @opt.fns =~/(.+?)\.(?:-|ssm\.)?sst$/
+        puts "#{sf} not a processed file type"
+      end
+    end
+    def read
+      begin
+        md=SiSU_Param::Parameters.new(@opt).get
+        env=SiSU_Env::InfoEnv.new(@opt.fns)
+        unless @opt.act[:quiet][:set]==:on
+          tool=(@opt.act[:verbose][:set]==:on \
+          || @opt.act[:verbose_plus][:set]==:on \
+          || @opt.act[:maintenance][:set]==:on) \
+          ? "#{env.program.text_editor} #{md.file.output_path.markdown.dir}/#{md.file.base_filename.markdown}"
+          : "[#{@opt.f_pth[:lng_is]}] #{@opt.fno}"
+          (@opt.act[:verbose][:set]==:on \
+          || @opt.act[:verbose_plus][:set]==:on \
+          || @opt.act[:maintenance][:set]==:on) \
+          ? SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'Markdown (plaintext utf-8)',tool).green_hi_blue
+          : SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'Markdown (plaintext utf-8)',tool).green_title_hi
+          if (@opt.act[:verbose_plus][:set]==:on \
+          || @opt.act[:maintenance][:set]==:on)
+            SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],@opt.fns,"#{md.file.output_path.markdown.dir}/#{md.file.base_filename.markdown}").flow
+          end
+        end
+        ao_array=SiSU_AO::Source.new(@opt).get # ao file drawn here
+        wrap_width=if defined? md.make.plaintext_wrap \
+        and md.make.plaintext_wrap
+          md.make.plaintext_wrap
+        elsif defined? env.plaintext_wrap \
+        and env.plaintext_wrap
+          env.plaintext_wrap
+        else 78
+        end
+        #wrap_width=(defined? md.make.plaintext_wrap) ? md.make.plaintext_wrap : 78
+        SiSU_Txt_Markdown::Source::Scroll.new(md,ao_array,wrap_width).songsheet
+      rescue
+        SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
+          __LINE__.to_s + ':' + __FILE__
+        end
+      ensure
+      end
+    end
+    private
+    class Scroll <Source
+      require_relative 'defaults'                       # defaults.rb
+      require_relative 'txt_shared'                     # txt_shared.rb
+        include SiSU_TextUtils
+      @@endnotes={ para: [], end: [] }
+      def initialize(md,data,wrap_width)
+        @md,@data,@wrap_width=md,data,wrap_width
+        @env=SiSU_Env::InfoEnv.new(@md.fns)
+        @brace_url=SiSU_Viz::Defaults.new.url_decoration
+        @tab="\t"
+        @@endnotes_=case md.opt.mod.inspect
+        when /--footnote/; false
+        when /--endnote/; true
+        else true
+        end
+        @plaintext={ body: [], open: [], close: [], head: [], metadata: [], tail: [] }
+      end
+      def songsheet
+        plaintext=markup(@data)
+        publish(plaintext)
+      end
+      def break_line
+        "\n"
+      end
+      # Used for extraction of endnotes from paragraphs
+      def extract_endnotes(dob='')
+        notes=dob.obj.scan(/(?:#{Mx[:en_a_o]}|#{Mx[:en_b_o]})([\d*+]+\s+.+?)(?:#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/)
+        @n=[]
+        notes.flatten.each do |n| #high cost to deal with <br> appropriately within plaintext, consider
+          n=n.dup.to_s
+          if n =~/#{Mx[:br_line]}|#{Mx[:br_nl]}/
+            fix = n.split(/#{Mx[:br_line]}|#{Mx[:br_nl]}/) #watch #added
+            fix.each do |x|
+              unless x.empty?; @n << x
+              end
+            end
+          else                 @n << n
+          end
+        end
+        notes=@n.flatten
+        notes.each do |e|
+          util=(e.to_s =~/^\[[\d*+]+\]:/) \
+          ? (SiSU_TextUtils::Wrap.new(e.to_s,@wrap_width,4,1))
+          : (SiSU_TextUtils::Wrap.new(e.to_s,@wrap_width,1,1))
+          wrap=util.line_wrap
+          wrap=if wrap =~ /^\s*[\d*+]+\s+.+?\s*\Z/m
+            wrap.gsub(/^(\s*)([\d*+]+)\s+(.+?)\s*\Z/m, <<-GSUB
+\\1[\\2]: \\3
+              GSUB
+            )
+          else
+            wrap.gsub(/^(.+)\Z/m, <<-GSUB
+\\1
+              GSUB
+            )
+          end
+          @@endnotes[:para] << "-#{wrap}"
+          @@endnotes[:end] << '' << wrap
+        end
+        @@endnotes
+      end
+      def plaintext_metadata
+        array=SiSU_Metadata::Summary.new(@md).plaintext.metadata
+        array.each do |meta|
+          tag,inf=meta.scan(/^.+?:\s|.+/)
+          if tag and inf
+            util=SiSU_TextUtils::Wrap.new(inf,@wrap_width,15,1)
+            txt=util.line_wrap
+            @plaintext[:metadata] <<<<WOK
+
+#{@tab}#{tag}#{txt}
+WOK
+          end
+        end
+      end
+      def plaintext_tail
+#       env=SiSU_Env::InfoEnv.new(@md.fns)
+        vz=SiSU_Viz::Defaults.new
+        generator="Generated by: #{@md.sisu_version[:project]} #{@md.sisu_version[:version]} of #{@md.sisu_version[:date_stamp]} (#{@md.sisu_version[:date]})"  if @md.sisu_version[:version]
+        lastdone="Last Generated on: #{Time.now}"
+        rubyv="Ruby version: #{@md.ruby_version}"
+        sc=if @md.sc_info
+          "Source file:    #{@md.sc_filename}#{break_line}Version number: #{@md.sc_number}#{break_line}Version date:   #{@md.sc_date}#{break_line}"
+        else ''
+        end
+        @plaintext[:tail] <<<<WOK
+#{break_line}
+plaintext (plain text):
+   #{@md.file.output_path.markdown.url}/#{@md.file.base_filename.markdown}#{break_line}
+Other versions of this document: #{break_line}
+manifest:
+   #{@md.file.output_path.manifest.url}/#{@md.file.base_filename.manifest}#{break_line}
+at:
+   #{@md.file.output_path.base.url}#{break_line}
+
+#{sc}
+* #{generator}
+* #{rubyv}
+* #{lastdone}
+* SiSU #{vz.url_sisu}
+WOK
+      end
+      def decorate
+        def heading
+          def inline                   #atx
+            def l1
+              '#'
+            end
+            def l2
+              '##'
+            end
+            def l3
+              '###'
+            end
+            def l4
+              '####'
+            end
+            def l5
+              '#####'
+            end
+            def l6
+              '######'
+            end
+            self
+          end
+          def underscore               #Setext
+            def l1
+              '='
+            end
+            def l2
+              '-'
+            end
+            def l3
+              ''
+            end
+            def l4
+              ''
+            end
+            def l5
+              ''
+            end
+            def l6
+              ''
+            end
+            self
+          end
+          self
+        end
+        def bold
+          def open
+            '**'
+          end
+          def close
+            '**'
+          end
+          self
+        end
+        def italics
+          def open
+            '*'
+          end
+          def close
+            '*'
+          end
+          self
+        end
+        def underscore
+          def open
+            '_'
+          end
+          def close
+            '_'
+          end
+          self
+        end
+       #def emphasis
+       #  def open
+       #    ''
+       #  end
+       #  def close
+       #    ''
+       #  end
+       #  self
+       #end
+        def cite
+          def open
+            '"'
+          end
+          def close
+            '"'
+          end
+          self
+        end
+        def insert
+          def open
+            '+'
+          end
+          def close
+            '+'
+          end
+          self
+        end
+        def strike
+          def open
+            '-'
+          end
+          def close
+            '-'
+          end
+          self
+        end
+        def superscript
+          def open
+            '^'
+          end
+          def close
+            '^'
+          end
+          self
+        end
+        def subscript
+          def open
+            '['
+          end
+          def close
+            ']'
+          end
+          self
+        end
+        def hilite
+          def open
+            '**'
+          end
+          def close
+            '**'
+          end
+          self
+        end
+        def monospace
+          def open
+            '`'
+          end
+          def close
+            '`'
+          end
+          self
+        end
+        self
+      end
+      def heading_decorated_inline(dob)
+        if dob.is==:heading
+          heading_inline = case dob.lc
+          when 1 then decorate.heading.inline.l1
+          when 2 then decorate.heading.inline.l2
+          when 3 then decorate.heading.inline.l3
+          when 4 then decorate.heading.inline.l4
+          when 5 then decorate.heading.inline.l5
+          when 6 then decorate.heading.inline.l6
+          end
+          heading_inline + ' ' +  dob.obj + ' ' + heading_inline
+        end
+      end
+      def heading_decorated_underscore(dob,times,p_num)
+        if dob.is==:heading
+          #times=@wrap_width if times > @wrap_width
+          case dob.lc
+          when 1 then decorate.heading.underscore.l1*times + p_num << break_line*2
+          when 2 then decorate.heading.underscore.l2*times + p_num << break_line*2
+          when 3 then decorate.heading.underscore.l3*times + p_num << break_line*2
+          when 4 then decorate.heading.underscore.l4*times + p_num << break_line*2
+          when 5 then decorate.heading.underscore.l5*times + p_num << break_line*2
+          when 6 then decorate.heading.underscore.l6*times + p_num << break_line*2
+          end
+        end
+      end
+      def plaintext_structure(dob='',p_num='') #% Used to extract the structure of a document
+        heading_decoration=:inline #(:inline|:underscore) #switch heading decoration between inline & underscore options
+        util=nil
+        wrapped=if dob.is==:para \
+        || dob.is==:heading
+          if dob.is==:heading
+            util=(heading_decoration== :inline) \
+            ? (SiSU_TextUtils::Wrap.new(heading_decorated_inline(dob),@wrap_width,0))
+            : (SiSU_TextUtils::Wrap.new(dob.obj,@wrap_width,0))
+          elsif dob.is==:para
+            if dob.hang \
+            and dob.hang =~/[0-9]/ \
+            and dob.indent != dob.hang
+              util=SiSU_TextUtils::Wrap.new(dob.obj,@wrap_width,dob.indent.to_i*2,dob.hang.to_i*2)
+              #util=SiSU_TextUtils::Wrap.new(dob.obj,@wrap_width,dob.hang.to_i*2,0)
+            elsif dob.indent =~/[1-9]/
+              util=if dob.bullet_
+                SiSU_TextUtils::Wrap.new("* #{dob.obj}",@wrap_width,dob.indent.to_i*2)
+              else SiSU_TextUtils::Wrap.new(dob.obj,@wrap_width,dob.indent.to_i*2)
+              end
+            else
+              util=if dob.bullet_
+                SiSU_TextUtils::Wrap.new("* #{dob.obj}",@wrap_width,0)
+              else SiSU_TextUtils::Wrap.new(dob.obj,@wrap_width,0)
+              end
+            end
+          else util=SiSU_TextUtils::Wrap.new(dob.obj,@wrap_width,0)
+          end
+          dob.is==:heading ? util.no_wrap_no_breaks : util.line_wrap
+        end
+        if heading_decoration== :underscore \
+        and dob.is==:heading
+          @plaintext[:body] << wrapped + p_num # main text, contents, body KEEP
+          @plaintext[:body] << heading_decorated_underscore(dob,wrapped.length,p_num)
+        else
+          @plaintext[:body] << wrapped + p_num << break_line # main text, contents, body KEEP
+        end
+        if @@endnotes[:para] \
+        and not @@endnotes_
+          @@endnotes[:para].each {|e| @plaintext[:body] << e << break_line}
+        elsif @@endnotes[:para] \
+        and @@endnotes_
+        end
+        @@endnotes[:para]=[]
+      end
+      def markup(data)                                                       # Used for major markup instructions
+        SiSU_Env::InfoEnv.new(@md.fns)
+        @data_mod,@endnotes,@level,@cont,@copen,@plaintext_contents_close=Array.new(6){[]}
+        (0..6).each { |x| @cont[x]=@level[x]=false }
+        (4..6).each { |x| @plaintext_contents_close[x]='' }
+        plaintext_tail #($1,$2)
+        plaintext_metadata
+        table_message='[table conversion awaited, see other document formats]'
+        data.each do |dob|
+          dob.obj=dob.obj.gsub(/#{Mx[:gr_o]}Th?#{Mx[:tc_p]}.+/um,"#{break_line}#{table_message}"). #fix
+            gsub(/.+?#{Mx[:gl_o]}-##{Mx[:gl_c]}/,'').                              # remove dummy headings (used by html) #check also [~-]#
+            gsub(/#{Mx[:fa_bold_o]}(.+?)#{Mx[:fa_bold_c]}/,
+              "#{decorate.bold.open}\\1#{decorate.bold.close}").
+            gsub(/#{Mx[:fa_italics_o]}(.+?)#{Mx[:fa_italics_c]}/,
+              "#{decorate.italics.open}\\1#{decorate.italics.close}").
+            gsub(/#{Mx[:fa_underscore_o]}(.+?)#{Mx[:fa_underscore_c]}/,
+              "#{decorate.underscore.open}\\1#{decorate.underscore.close}").
+            gsub(/#{Mx[:fa_subscript_o]}(.+?)#{Mx[:fa_subscript_c]}/,
+              "#{decorate.subscript.open}\\1#{decorate.subscript.close}").
+            gsub(/#{Mx[:fa_superscript_o]}(.+?)#{Mx[:fa_superscript_c]}/,
+              "#{decorate.superscript.open}\\1#{decorate.superscript.close}").
+            gsub(/#{Mx[:fa_insert_o]}(.+?)#{Mx[:fa_insert_c]}/,
+              "#{decorate.insert.open}\\1#{decorate.insert.close}").
+            gsub(/#{Mx[:fa_cite_o]}(.+?)#{Mx[:fa_cite_c]}/,
+              "#{decorate.cite.open}\\1#{decorate.cite.close}").
+            gsub(/#{Mx[:fa_strike_o]}(.+?)#{Mx[:fa_strike_c]}/,
+              "#{decorate.strike.open}\\1#{decorate.strike.close}").
+            gsub(/#{Mx[:fa_monospace_o]}(.+?)#{Mx[:fa_monospace_c]}/,
+              "#{decorate.monospace.open}\\1#{decorate.monospace.close}")
+          unless dob.is==:code
+            dob.obj=dob.obj.gsub(/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}#{Mx[:rel_o]}\S+?#{Mx[:rel_c]}/,'\1').
+              gsub(/#{Mx[:url_o]}_(\S+?)#{Mx[:url_c]}/,'\1').
+              gsub(/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,'\1 [link: <\2>]').
+              gsub(/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}image/,'\1 [link: local image]').
+              gsub(/#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,"#{@brace_url.txt_open}\\1#{@brace_url.txt_close}")
+            extract_endnotes(dob)
+            dob.obj=dob.obj.gsub(/#{Mx[:en_a_o]}([\d*+]+)\s+(?:.+?)#{Mx[:en_a_c]}/,'[^\1]'). # endnote marker marked up
+              gsub(/#{Mx[:en_b_o]}([\d*+]+)\s+(?:.+?)#{Mx[:en_b_c]}/,'[^\1]'). # endnote marker marked up
+              gsub(/#{Mx[:gl_o]}(?:#lt|#060)#{Mx[:gl_c]}/,'<').
+              gsub(/#{Mx[:gl_o]}(?:#gt|#062)#{Mx[:gl_c]}/,'>').
+              gsub(/#{Mx[:gl_o]}#(?:038|amp)#{Mx[:gl_c]}/,'&').
+              gsub(/#{Mx[:gl_o]}#033#{Mx[:gl_c]}/,'!').
+              gsub(/#{Mx[:gl_o]}#035#{Mx[:gl_c]}/,'#').
+              gsub(/#{Mx[:gl_o]}#042#{Mx[:gl_c]}/,'*').
+              gsub(/#{Mx[:gl_o]}#045#{Mx[:gl_c]}/,'-').
+              gsub(/#{Mx[:gl_o]}#047#{Mx[:gl_c]}/,'/').
+              gsub(/#{Mx[:gl_o]}#095#{Mx[:gl_c]}/,'_').
+              gsub(/#{Mx[:gl_o]}#123#{Mx[:gl_c]}/,'{').
+              gsub(/#{Mx[:gl_o]}#125#{Mx[:gl_c]}/,'}').
+              gsub(/#{Mx[:gl_o]}#126#{Mx[:gl_c]}/,'~').
+              gsub(/#{Mx[:gl_o]}#169#{Mx[:gl_c]}/,'©').
+              gsub(/#{Mx[:gl_o]}#092#{Mx[:gl_c]}/,'\\')
+          end
+          dob.obj=if dob.of==:block                                   # watch
+            dob.obj.gsub(/#{Mx[:gl_o]}●#{Mx[:gl_c]}/m,"* ").
+              gsub(/\n?#{Mx[:br_line]}\n?|\n?#{Mx[:br_nl]}\n?/m,break_line)
+          else dob.obj.gsub(/\n?#{Mx[:br_line]}\n?|\n?#{Mx[:br_nl]}\n?/m,break_line*2)
+          end
+          if dob.is==:code
+            dob.obj=dob.obj.gsub(/(^|[^}])_([<>])/m,'\1\2'). # _> _<
+              gsub(/(^|[^}])_([<>])/m,'\1\2') # _<_<
+          end
+          dob.obj=dob.obj.gsub(/#{Mx[:url_o]}_(\S+?)#{Mx[:url_c]}/,'\1').
+            gsub(/<a href=".+?">(.+?)<\/a>/m,'\1').
+            gsub(/#{Mx[:mk_o]}:name#(\S+?)#{Mx[:mk_c]}/,'').                       # remove name links
+            gsub(/&nbsp;|#{Mx[:nbsp]}/,' ').                                       # decide on
+            gsub(/(?:^|[^_\\])#{Mx[:lnk_o]}(\S+?\.(?:png|jpg|gif)) .+?#{Mx[:lnk_c]}#{Mx[:url_o]}\S+?#{Mx[:url_c]}/,'    [ \1 ]'). #"[ #{dir.url.images_local}\/\\1 ]")
+            gsub(/(?:^|[^_\\])#{Mx[:lnk_o]}(\S+?\.(?:png|jpg|gif)) .+?#{Mx[:lnk_c]}image/,'    [ \1 ]').
+            gsub(/(?:^|[^_\\])\{\s*\S+?\.(?:png|jpg|gif)\s+.+?"(.*?)"\s*\}\S+/,'[image: "\1"]')
+          if dob.obj !~/(^#{Rx[:meta]}|#{Mx[:br_eof]}|#{Mx[:br_endnotes]})/
+            p_num=''
+            #ocn
+            if dob.is==:heading \
+            or dob.is==:para
+              plaintext_structure(dob,p_num)
+            elsif dob.is==:group \
+            or dob.is==:block \
+            or dob.is==:verse \
+            or dob.is==:code \
+            or dob.is==:table
+              @plaintext[:body] << dob.obj + p_num << break_line
+            elsif dob.is==:break
+              sp=' '
+              ln='-'
+              @plaintext[:body] <<=if dob.obj==Mx[:br_page] \
+              or dob.obj==Mx[:br_page_new] \
+              or dob.obj==Mx[:br_page_line]
+                "#{break_line}#{ln*40}#{break_line*2}"
+              elsif dob.obj ==Mx[:br_obj]
+                "#{break_line}#{sp*20}*  *  *#{break_line*2}"
+              end # following empty line (break_line) missing, fix
+            end
+            dob='' if (dob.obj =~/<a name="n\d+">/ \
+              and dob.obj =~/^(-\{{2}~\d+|<!e[:_]\d+!>)/) # -endnote
+            if dob ## Clean Prepared Text
+              dob.obj=dob.obj.gsub(/<!.+!>/,' ').
+                gsub(/<:\S+>/,' ')
+            end
+          end
+        end
+        @plaintext
+      end
+      def publish(plaintext)
+        divider='='
+        content=[]
+        content << plaintext[:open]
+        content << plaintext[:head]
+        content << plaintext[:body]
+        content << @@endnotes[:end] if @@endnotes_
+        content << "#{break_line}#{divider*@wrap_width}#{break_line}"
+        content << plaintext[:metadata]
+        content << "#{break_line}#{divider*@wrap_width}#{break_line}" if @md.stmp =~/\w+/ #not used?
+        content << plaintext[:tail]
+        Output.new(content,@md).markdown
+        @@endnotes={ para: [], end: [] }
+      end
+    end
+    class Output <Source
+      include SiSU_Param
+      include SiSU_Env
+      def initialize(content,md)
+        @content,@md=content,md
+      end
+      def markdown
+        file_plaintext=SiSU_Env::FileOp.new(@md).write_file.markdown
+        @sisu=[]
+        emptyline=0
+        @content.each do |para|                                                # this is a hack
+          if para.is_a?(Array) \
+          and para.length > 0
+            para.each do |line|
+              if line
+                line=line.gsub(/[ \t]+$/m,'').
+                  gsub(/^\A[ ]*\Z/m,'')
+                (line=~/^\A\Z/) \
+                ? (emptyline+=1)
+                : emptyline=0
+                if emptyline < 2                     #remove additional empty lines
+                  file_plaintext.puts line
+                end
+              end
+            end
+          else file_plaintext.puts para          #unix plaintext # /^([*=-]|\.){5}/
+          end
+        end
+        file_plaintext.close
+      end
+    end
+  end
+end
+__END__
diff --git a/lib/sisu/v5/plaintext.rb b/lib/sisu/v5/txt_plain.rb
index b82013aa..0cd50254 100644
--- a/lib/sisu/v5/plaintext.rb
+++ b/lib/sisu/v5/txt_plain.rb
@@ -60,14 +60,12 @@
      linefeed)
 
 =end
-module SiSU_Plaintext
-  require_relative 'dal'                                # dal.rb
+module SiSU_Txt_Plain
+  require_relative 'ao'                                 # ao.rb
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env
-  require_relative 'plaintext_format'                   # plaintext_format.rb
-    include SiSU_Plaintext_Format
   require_relative 'shared_metadata'                    # shared_metadata.rb
-  require_relative 'shared_txt'                         # shared_txt.rb
+  require_relative 'txt_shared'                         # txt_shared.rb
   include SiSU_Param
   include SiSU_Viz
   @@alt_id_count,@@alt_id_count,@@tablehead,@@number_of_cols=0,0,0,0
@@ -99,7 +97,7 @@ module SiSU_Plaintext
             SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],@opt.fns,"#{md.file.output_path.txt.dir}/#{md.file.base_filename.txt}").flow
           end
         end
-        dal_array=SiSU_DAL::Source.new(@opt).get # dal file drawn here
+        ao_array=SiSU_AO::Source.new(@opt).get # ao file drawn here
         wrap_width=if defined? md.make.plaintext_wrap \
         and md.make.plaintext_wrap
           md.make.plaintext_wrap
@@ -109,7 +107,7 @@ module SiSU_Plaintext
         else 78
         end
         #wrap_width=(defined? md.make.plaintext_wrap) ? md.make.plaintext_wrap : 78
-        SiSU_Plaintext::Source::Scroll.new(md,dal_array,wrap_width).songsheet
+        SiSU_Txt_Plain::Source::Scroll.new(md,ao_array,wrap_width).songsheet
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -120,7 +118,7 @@ module SiSU_Plaintext
     private
     class Scroll <Source
       require_relative 'defaults'                       # defaults.rb
-      require_relative 'shared_txt'                     # shared_txt.rb
+      require_relative 'txt_shared'                     # txt_shared.rb
         include SiSU_TextUtils
       @@endnotes={ para: [], end: [] }
       def initialize(md,data,wrap_width)
@@ -133,13 +131,15 @@ module SiSU_Plaintext
         when /--endnote/; true
         else true
         end
-        @br="\n"
         @plaintext={ body: [], open: [], close: [], head: [], metadata: [], tail: [] }
       end
       def songsheet
         plaintext=markup(@data)
         publish(plaintext)
       end
+      def break_line
+        "\n"
+      end
       # Used for extraction of endnotes from paragraphs
       def extract_endnotes(dob='')
         notes=dob.obj.scan(/(?:#{Mx[:en_a_o]}|#{Mx[:en_b_o]})([\d*+]+\s+.+?)(?:#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/)
@@ -198,18 +198,18 @@ WOK
         lastdone="Last Generated on: #{Time.now}"
         rubyv="Ruby version: #{@md.ruby_version}"
         sc=if @md.sc_info
-          "Source file:    #{@md.sc_filename}#{@br}Version number: #{@md.sc_number}#{@br}Version date:   #{@md.sc_date}#{@br}"
+          "Source file:    #{@md.sc_filename}#{break_line}Version number: #{@md.sc_number}#{break_line}Version date:   #{@md.sc_date}#{break_line}"
         else ''
         end
         @plaintext[:tail] <<<<WOK
-#{@br}
+#{break_line}
 plaintext (plain text):
-   #{@md.file.output_path.txt.url}/#{@md.file.base_filename.txt}#{@br}
-Other versions of this document: #{@br}
+   #{@md.file.output_path.txt.url}/#{@md.file.base_filename.txt}#{break_line}
+Other versions of this document: #{break_line}
 manifest:
-   #{@md.file.output_path.manifest.url}/#{@md.file.base_filename.manifest}#{@br}
+   #{@md.file.output_path.manifest.url}/#{@md.file.base_filename.manifest}#{break_line}
 at:
-   #{@md.file.output_path.base.url}#{@br}
+   #{@md.file.output_path.base.url}#{break_line}
 
 #{sc}
 * #{generator}
@@ -376,24 +376,34 @@ WOK
           times=wrapped.length
           times=@wrap_width if times > @wrap_width
           @plaintext[:body] << case lv
-          when 1;      wrapped.upcase << @br << decorate.heading_underscore.l1*times + p_num << @br*2
-          when 2;      wrapped.upcase << @br << decorate.heading_underscore.l2*times + p_num << @br*2
-          when 3;      wrapped.upcase << @br << decorate.heading_underscore.l3*times + p_num << @br*2
-          when 4;      wrapped.upcase << @br << decorate.heading_underscore.l4*times + p_num << @br*2
-          when 5;      wrapped.upcase << @br << decorate.heading_underscore.l5*times + p_num << @br*2
-          when 6;      wrapped.upcase << @br << decorate.heading_underscore.l6*times + p_num << @br*2
+          when 1;      wrapped.upcase << break_line << decorate.heading_underscore.l1*times + p_num << break_line*2
+          when 2;      wrapped.upcase << break_line << decorate.heading_underscore.l2*times + p_num << break_line*2
+          when 3;      wrapped.upcase << break_line << decorate.heading_underscore.l3*times + p_num << break_line*2
+          when 4;      wrapped.upcase << break_line << decorate.heading_underscore.l4*times + p_num << break_line*2
+          when 5;      wrapped.upcase << break_line << decorate.heading_underscore.l5*times + p_num << break_line*2
+          when 6;      wrapped.upcase << break_line << decorate.heading_underscore.l6*times + p_num << break_line*2
           end
         else
-          @plaintext[:body] << wrapped + p_num << @br # main text, contents, body KEEP
+          @plaintext[:body] << wrapped + p_num << break_line # main text, contents, body KEEP
         end
         if @@endnotes[:para] \
         and not @@endnotes_
-          @@endnotes[:para].each {|e| @plaintext[:body] << e << @br}
+          @@endnotes[:para].each {|e| @plaintext[:body] << e << break_line}
         elsif @@endnotes[:para] \
         and @@endnotes_
         end
         @@endnotes[:para]=[]
       end
+      def ocn_display(dob)
+        if @env.plaintext_ocn?
+          if defined? dob.ocn \
+          and dob.ocn.is_a?(Fixnum)
+            (defined? dob.ocn) ? "\n#{Dx[:ocn_o]}#{dob.ocn}#{Dx[:ocn_c]}" : ''
+          else ''
+          end
+        else ''
+        end
+      end
       def markup(data)                                                       # Used for major markup instructions
         SiSU_Env::InfoEnv.new(@md.fns)
         @data_mod,@endnotes,@level,@cont,@copen,@plaintext_contents_close=Array.new(6){[]}
@@ -403,7 +413,7 @@ WOK
         plaintext_metadata
         table_message='[table omitted, see other document formats]'
         data.each do |dob|
-          dob.obj=dob.obj.gsub(/#{Mx[:gr_o]}Th?#{Mx[:tc_p]}.+/um,"#{@br}#{table_message}"). #fix
+          dob.obj=dob.obj.gsub(/#{Mx[:gr_o]}Th?#{Mx[:tc_p]}.+/um,"#{break_line}#{table_message}"). #fix
             gsub(/.+?#{Mx[:gl_o]}-##{Mx[:gl_c]}/,'').                              # remove dummy headings (used by html) #check also [~-]#
             gsub(/#{Mx[:fa_bold_o]}(.+?)#{Mx[:fa_bold_c]}/,
               "#{decorate.bold.open}\\1#{decorate.bold.close}").
@@ -449,8 +459,8 @@ WOK
           end
           dob.obj=if dob.of==:block                                   # watch
             dob.obj.gsub(/#{Mx[:gl_o]}●#{Mx[:gl_c]}/m,"* ").
-              gsub(/\n?#{Mx[:br_line]}\n?|\n?#{Mx[:br_nl]}\n?/m,@br)
-          else dob.obj.gsub(/\n?#{Mx[:br_line]}\n?|\n?#{Mx[:br_nl]}\n?/m,@br*2)
+              gsub(/\n?#{Mx[:br_line]}\n?|\n?#{Mx[:br_nl]}\n?/m,break_line)
+          else dob.obj.gsub(/\n?#{Mx[:br_line]}\n?|\n?#{Mx[:br_nl]}\n?/m,break_line*2)
           end
           if dob.is==:code
             dob.obj=dob.obj.gsub(/(^|[^}])_([<>])/m,'\1\2'). # _> _<
@@ -464,13 +474,7 @@ WOK
             gsub(/(?:^|[^_\\])#{Mx[:lnk_o]}(\S+?\.(?:png|jpg|gif)) .+?#{Mx[:lnk_c]}image/,'    [ \1 ]').
             gsub(/(?:^|[^_\\])\{\s*\S+?\.(?:png|jpg|gif)\s+.+?"(.*?)"\s*\}\S+/,'[image: "\1"]')
           if dob.obj !~/(^#{Rx[:meta]}|#{Mx[:br_eof]}|#{Mx[:br_endnotes]})/
-            p_num=''
-            if @env.plaintext_ocn?
-              if defined? dob.ocn \
-              and dob.ocn.is_a?(Fixnum)
-                p_num=SiSU_Plaintext_Format::ParagraphNumber.new(dob.ocn).display
-              end
-            end
+            p_num=ocn_display(dob)
             if dob.is==:heading \
             or dob.is==:para
               plaintext_structure(dob,p_num)
@@ -479,17 +483,17 @@ WOK
             or dob.is==:verse \
             or dob.is==:code \
             or dob.is==:table
-              @plaintext[:body] << dob.obj + p_num << @br
+              @plaintext[:body] << dob.obj + p_num << break_line
             elsif dob.is==:break
               sp=' '
               ln='-'
               @plaintext[:body] <<=if dob.obj==Mx[:br_page] \
               or dob.obj==Mx[:br_page_new] \
               or dob.obj==Mx[:br_page_line]
-                "#{@br}#{ln*40}#{@br*2}"
+                "#{break_line}#{ln*40}#{break_line*2}"
               elsif dob.obj ==Mx[:br_obj]
-                "#{@br}#{sp*20}*  *  *#{@br*2}"
-              end # following empty line (@br) missing, fix
+                "#{break_line}#{sp*20}*  *  *#{break_line*2}"
+              end # following empty line (break_line) missing, fix
             end
             dob='' if (dob.obj =~/<a name="n\d+">/ \
               and dob.obj =~/^(-\{{2}~\d+|<!e[:_]\d+!>)/) # -endnote
@@ -508,9 +512,9 @@ WOK
         content << plaintext[:head]
         content << plaintext[:body]
         content << @@endnotes[:end] if @@endnotes_
-        content << "#{@br}#{divider*@wrap_width}#{@br}"
+        content << "#{break_line}#{divider*@wrap_width}#{break_line}"
         content << plaintext[:metadata]
-        content << "#{@br}#{divider*@wrap_width}#{@br}" if @md.stmp =~/\w+/ #not used?
+        content << "#{break_line}#{divider*@wrap_width}#{break_line}" if @md.stmp =~/\w+/ #not used?
         content << plaintext[:tail]
         Output.new(content,@md).plaintext
         @@endnotes={ para: [], end: [] }
diff --git a/lib/sisu/v5/txt_rst.rb b/lib/sisu/v5/txt_rst.rb
new file mode 100644
index 00000000..c98bb275
--- /dev/null
+++ b/lib/sisu/v5/txt_rst.rb
@@ -0,0 +1,550 @@
+# encoding: utf-8
+=begin
+
+ * Name: SiSU
+
+ * Description: a framework for document structuring, publishing and search
+
+ * Author: Ralph Amissah
+
+ * Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+   2007, 2008, 2009, 2010, 2011, 2012, 2013 Ralph Amissah, All Rights Reserved.
+
+ * License: GPL 3 or later:
+
+   SiSU, a framework for document structuring, publishing and search
+
+   Copyright (C) Ralph Amissah
+
+   This program is free software: you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by the Free
+   Software Foundation, either version 3 of the License, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful, but WITHOUT
+   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+   FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+   more details.
+
+   You should have received a copy of the GNU General Public License along with
+   this program. If not, see <http://www.gnu.org/licenses/>.
+
+   If you have Internet connection, the latest version of the GPL should be
+   available at these locations:
+   <http://www.fsf.org/licensing/licenses/gpl.html>
+   <http://www.gnu.org/licenses/gpl.html>
+
+   <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+ * SiSU uses:
+   * Standard SiSU markup syntax,
+   * Standard SiSU meta-markup syntax, and the
+   * Standard SiSU object citation numbering and system
+
+ * Hompages:
+   <http://www.jus.uio.no/sisu>
+   <http://www.sisudoc.org>
+
+ * Download:
+   <http://www.sisudoc.org/sisu/en/SiSU/download.html>
+
+ * 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/plaintext_rst.rb;hb=HEAD>
+
+ * Ralph Amissah
+   <ralph@amissah.com>
+   <ralph.amissah@gmail.com>
+
+ ** Description: plaintext (smarttext) generation, rST
+
+=end
+module SiSU_Txt_rST
+  require_relative 'ao'                                 # ao.rb
+  require_relative 'sysenv'                             # sysenv.rb
+    include SiSU_Env
+  require_relative 'shared_metadata'                    # shared_metadata.rb
+  require_relative 'txt_shared'                         # txt_shared.rb
+  include SiSU_Param
+  include SiSU_Viz
+  @@alt_id_count,@@alt_id_count,@@tablehead,@@number_of_cols=0,0,0,0
+  @@tablefoot=''
+  class Source
+    def initialize(opt)
+      @opt=opt
+      unless @opt.fns =~/(.+?)\.(?:-|ssm\.)?sst$/
+        puts "#{sf} not a processed file type"
+      end
+    end
+    def read
+      begin
+        md=SiSU_Param::Parameters.new(@opt).get
+        env=SiSU_Env::InfoEnv.new(@opt.fns)
+        unless @opt.act[:quiet][:set]==:on
+          tool=(@opt.act[:verbose][:set]==:on \
+          || @opt.act[:verbose_plus][:set]==:on \
+          || @opt.act[:maintenance][:set]==:on) \
+          ? "#{env.program.text_editor} #{md.file.output_path.rst.dir}/#{md.file.base_filename.rst}"
+          : "[#{@opt.f_pth[:lng_is]}] #{@opt.fno}"
+          (@opt.act[:verbose][:set]==:on \
+          || @opt.act[:verbose_plus][:set]==:on \
+          || @opt.act[:maintenance][:set]==:on) \
+          ? SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'rST (plaintext utf-8)',tool).green_hi_blue
+          : SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'rST (plaintext utf-8)',tool).green_title_hi
+          if (@opt.act[:verbose_plus][:set]==:on \
+          || @opt.act[:maintenance][:set]==:on)
+            SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],@opt.fns,"#{md.file.output_path.rst.dir}/#{md.file.base_filename.rst}").flow
+          end
+        end
+        ao_array=SiSU_AO::Source.new(@opt).get # ao file drawn here
+        wrap_width=if defined? md.make.plaintext_wrap \
+        and md.make.plaintext_wrap
+          md.make.plaintext_wrap
+        elsif defined? env.plaintext_wrap \
+        and env.plaintext_wrap
+          env.plaintext_wrap
+        else 78
+        end
+        #wrap_width=(defined? md.make.plaintext_wrap) ? md.make.plaintext_wrap : 78
+        SiSU_Txt_rST::Source::Scroll.new(md,ao_array,wrap_width).songsheet
+      rescue
+        SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
+          __LINE__.to_s + ':' + __FILE__
+        end
+      ensure
+      end
+    end
+    private
+    class Scroll <Source
+      require_relative 'defaults'                       # defaults.rb
+      require_relative 'txt_shared'                     # txt_shared.rb
+        include SiSU_TextUtils
+      @@endnotes={ para: [], end: [] }
+      def initialize(md,data,wrap_width)
+        @md,@data,@wrap_width=md,data,wrap_width
+        @env=SiSU_Env::InfoEnv.new(@md.fns)
+        @brace_url=SiSU_Viz::Defaults.new.url_decoration
+        @tab="\t"
+        @@endnotes_=case md.opt.mod.inspect
+        when /--footnote/; false
+        when /--endnote/; true
+        else true
+        end
+        @plaintext={ body: [], open: [], close: [], head: [], metadata: [], tail: [] }
+      end
+      def songsheet
+        plaintext=markup(@data)
+        publish(plaintext)
+      end
+      def break_line
+        "\n"
+      end
+      # Used for extraction of endnotes from paragraphs
+      def extract_endnotes(dob='')
+        notes=dob.obj.scan(/(?:#{Mx[:en_a_o]}|#{Mx[:en_b_o]})([\d*+]+\s+.+?)(?:#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/)
+        @n=[]
+        notes.flatten.each do |n| #high cost to deal with <br> appropriately within plaintext, consider
+          n=n.dup.to_s
+          if n =~/#{Mx[:br_line]}|#{Mx[:br_nl]}/
+            fix = n.split(/#{Mx[:br_line]}|#{Mx[:br_nl]}/) #watch #added
+            fix.each do |x|
+              unless x.empty?; @n << x
+              end
+            end
+          else                 @n << n
+          end
+        end
+        notes=@n.flatten
+        notes.each do |e|
+          util=(e.to_s =~/^\[[\d*+]+\]:/) \
+          ? (SiSU_TextUtils::Wrap.new(e.to_s,@wrap_width,4,1))
+          : (SiSU_TextUtils::Wrap.new(e.to_s,@wrap_width,1,1))
+          wrap=util.line_wrap
+          wrap=if wrap =~ /^\s*[\d*+]+\s+.+?\s*\Z/m
+            wrap.gsub(/^(\s*)([\d*+]+)\s+(.+?)\s*\Z/m, <<-GSUB
+\\1[\\2]: \\3
+              GSUB
+            )
+          else
+            wrap.gsub(/^(.+)\Z/m, <<-GSUB
+\\1
+              GSUB
+            )
+          end
+          @@endnotes[:para] << "-#{wrap}"
+          @@endnotes[:end] << '' << wrap
+        end
+        @@endnotes
+      end
+      def plaintext_metadata
+        array=SiSU_Metadata::Summary.new(@md).plaintext.metadata
+        array.each do |meta|
+          tag,inf=meta.scan(/^.+?:\s|.+/)
+          if tag and inf
+            util=SiSU_TextUtils::Wrap.new(inf,@wrap_width,15,1)
+            txt=util.line_wrap
+            @plaintext[:metadata] <<<<WOK
+
+#{@tab}#{tag}#{txt}
+WOK
+          end
+        end
+      end
+      def plaintext_tail
+#       env=SiSU_Env::InfoEnv.new(@md.fns)
+        vz=SiSU_Viz::Defaults.new
+        generator="Generated by: #{@md.sisu_version[:project]} #{@md.sisu_version[:version]} of #{@md.sisu_version[:date_stamp]} (#{@md.sisu_version[:date]})"  if @md.sisu_version[:version]
+        lastdone="Last Generated on: #{Time.now}"
+        rubyv="Ruby version: #{@md.ruby_version}"
+        sc=if @md.sc_info
+          "Source file:    #{@md.sc_filename}#{break_line}Version number: #{@md.sc_number}#{break_line}Version date:   #{@md.sc_date}#{break_line}"
+        else ''
+        end
+        @plaintext[:tail] <<<<WOK
+#{break_line}
+plaintext (plain text):
+   #{@md.file.output_path.rst.url}/#{@md.file.base_filename.rst}#{break_line}
+Other versions of this document: #{break_line}
+manifest:
+   #{@md.file.output_path.manifest.url}/#{@md.file.base_filename.manifest}#{break_line}
+at:
+   #{@md.file.output_path.base.url}#{break_line}
+
+#{sc}
+* #{generator}
+* #{rubyv}
+* #{lastdone}
+* SiSU #{vz.url_sisu}
+WOK
+      end
+      def decorate
+        def heading
+          def underscore
+            def l1
+              '='
+            end
+            def l2
+              '-'
+            end
+            def l3
+              '`'
+            end
+            def l4
+              ':'
+            end
+            def l5
+              "'"
+            end
+            def l6
+              '"'
+            end
+            self
+          end
+          self
+        end
+        def bold
+          def open
+            '*'
+          end
+          def close
+            '*'
+          end
+          self
+        end
+        def italics
+          def open
+            '/'
+          end
+          def close
+            '/'
+          end
+          self
+        end
+        def underscore
+          def open
+            '_'
+          end
+          def close
+            '_'
+          end
+          self
+        end
+       #def emphasis
+       #  def open
+       #    ''
+       #  end
+       #  def close
+       #    ''
+       #  end
+       #  self
+       #end
+        def cite
+          def open
+            '"'
+          end
+          def close
+            '"'
+          end
+          self
+        end
+        def insert
+          def open
+            '+'
+          end
+          def close
+            '+'
+          end
+          self
+        end
+        def strike
+          def open
+            '-'
+          end
+          def close
+            '-'
+          end
+          self
+        end
+        def superscript
+          def open
+            '^'
+          end
+          def close
+            '^'
+          end
+          self
+        end
+        def subscript
+          def open
+            '['
+          end
+          def close
+            ']'
+          end
+          self
+        end
+        def hilite
+          def open
+            '*'
+          end
+          def close
+            '*'
+          end
+          self
+        end
+        def monospace
+          def open
+            '#'
+          end
+          def close
+            '#'
+          end
+          self
+        end
+        self
+      end
+      def heading_decorated_underscore(dob,times,p_num)
+        if dob.is==:heading
+          #times=@wrap_width if times > @wrap_width
+          case dob.lc
+          when 1 then decorate.heading.underscore.l1*times + p_num << break_line*2
+          when 2 then decorate.heading.underscore.l2*times + p_num << break_line*2
+          when 3 then decorate.heading.underscore.l3*times + p_num << break_line*2
+          when 4 then decorate.heading.underscore.l4*times + p_num << break_line*2
+          when 5 then decorate.heading.underscore.l5*times + p_num << break_line*2
+          when 6 then decorate.heading.underscore.l6*times + p_num << break_line*2
+          end
+        end
+      end
+      def plaintext_structure(dob='',p_num='') #% Used to extract the structure of a document
+        util=nil
+        wrapped=if dob.is==:para \
+        || dob.is==:heading
+          if dob.is==:heading
+            util=SiSU_TextUtils::Wrap.new(dob.obj,@wrap_width,0)
+          elsif dob.is==:para
+            if dob.hang \
+            and dob.hang =~/[0-9]/ \
+            and dob.indent != dob.hang
+              util=SiSU_TextUtils::Wrap.new(dob.obj,@wrap_width,dob.indent.to_i*2,dob.hang.to_i*2)
+              #util=SiSU_TextUtils::Wrap.new(dob.obj,@wrap_width,dob.hang.to_i*2,0)
+            elsif dob.indent =~/[1-9]/
+              util=if dob.bullet_
+                SiSU_TextUtils::Wrap.new("* #{dob.obj}",@wrap_width,dob.indent.to_i*2)
+              else SiSU_TextUtils::Wrap.new(dob.obj,@wrap_width,dob.indent.to_i*2)
+              end
+            else
+              util=if dob.bullet_
+                SiSU_TextUtils::Wrap.new("* #{dob.obj}",@wrap_width,0)
+              else SiSU_TextUtils::Wrap.new(dob.obj,@wrap_width,0)
+              end
+            end
+          else util=SiSU_TextUtils::Wrap.new(dob.obj,@wrap_width,0)
+          end
+          dob.is==:heading ? util.no_wrap_no_breaks : util.line_wrap
+        end
+        if dob.is==:heading
+          @plaintext[:body] << wrapped + p_num # main text, contents, body KEEP
+          @plaintext[:body] << heading_decorated_underscore(dob,wrapped.length,p_num)
+        else
+          @plaintext[:body] << wrapped + p_num << break_line # main text, contents, body KEEP
+        end
+        if @@endnotes[:para] \
+        and not @@endnotes_
+          @@endnotes[:para].each {|e| @plaintext[:body] << e << break_line}
+        elsif @@endnotes[:para] \
+        and @@endnotes_
+        end
+        @@endnotes[:para]=[]
+      end
+      def markup(data)                                                       # Used for major markup instructions
+        SiSU_Env::InfoEnv.new(@md.fns)
+        @data_mod,@endnotes,@level,@cont,@copen,@plaintext_contents_close=Array.new(6){[]}
+        (0..6).each { |x| @cont[x]=@level[x]=false }
+        (4..6).each { |x| @plaintext_contents_close[x]='' }
+        plaintext_tail #($1,$2)
+        plaintext_metadata
+        table_message='[table conversion awaited, see other document formats]'
+        data.each do |dob|
+          dob.obj=dob.obj.gsub(/#{Mx[:gr_o]}Th?#{Mx[:tc_p]}.+/um,"#{break_line}#{table_message}"). #fix
+            gsub(/.+?#{Mx[:gl_o]}-##{Mx[:gl_c]}/,'').                              # remove dummy headings (used by html) #check also [~-]#
+            gsub(/#{Mx[:fa_bold_o]}(.+?)#{Mx[:fa_bold_c]}/,
+              "#{decorate.bold.open}\\1#{decorate.bold.close}").
+            gsub(/#{Mx[:fa_italics_o]}(.+?)#{Mx[:fa_italics_c]}/,
+              "#{decorate.italics.open}\\1#{decorate.italics.close}").
+            gsub(/#{Mx[:fa_underscore_o]}(.+?)#{Mx[:fa_underscore_c]}/,
+              "#{decorate.underscore.open}\\1#{decorate.underscore.close}").
+            gsub(/#{Mx[:fa_subscript_o]}(.+?)#{Mx[:fa_subscript_c]}/,
+              "#{decorate.subscript.open}\\1#{decorate.subscript.close}").
+            gsub(/#{Mx[:fa_superscript_o]}(.+?)#{Mx[:fa_superscript_c]}/,
+              "#{decorate.superscript.open}\\1#{decorate.superscript.close}").
+            gsub(/#{Mx[:fa_insert_o]}(.+?)#{Mx[:fa_insert_c]}/,
+              "#{decorate.insert.open}\\1#{decorate.insert.close}").
+            gsub(/#{Mx[:fa_cite_o]}(.+?)#{Mx[:fa_cite_c]}/,
+              "#{decorate.cite.open}\\1#{decorate.cite.close}").
+            gsub(/#{Mx[:fa_strike_o]}(.+?)#{Mx[:fa_strike_c]}/,
+              "#{decorate.strike.open}\\1#{decorate.strike.close}").
+            gsub(/#{Mx[:fa_monospace_o]}(.+?)#{Mx[:fa_monospace_c]}/,
+              "#{decorate.monospace.open}\\1#{decorate.monospace.close}")
+          unless dob.is==:code
+            dob.obj=dob.obj.gsub(/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}#{Mx[:rel_o]}\S+?#{Mx[:rel_c]}/,'\1').
+              gsub(/#{Mx[:url_o]}_(\S+?)#{Mx[:url_c]}/,'\1').
+              gsub(/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,'\1 [link: <\2>]').
+              gsub(/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}image/,'\1 [link: local image]').
+              gsub(/#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,"#{@brace_url.txt_open}\\1#{@brace_url.txt_close}")
+            extract_endnotes(dob)
+            dob.obj=dob.obj.gsub(/#{Mx[:en_a_o]}([\d*+]+)\s+(?:.+?)#{Mx[:en_a_c]}/,'[^\1]'). # endnote marker marked up
+              gsub(/#{Mx[:en_b_o]}([\d*+]+)\s+(?:.+?)#{Mx[:en_b_c]}/,'[^\1]'). # endnote marker marked up
+              gsub(/#{Mx[:gl_o]}(?:#lt|#060)#{Mx[:gl_c]}/,'<').
+              gsub(/#{Mx[:gl_o]}(?:#gt|#062)#{Mx[:gl_c]}/,'>').
+              gsub(/#{Mx[:gl_o]}#(?:038|amp)#{Mx[:gl_c]}/,'&').
+              gsub(/#{Mx[:gl_o]}#033#{Mx[:gl_c]}/,'!').
+              gsub(/#{Mx[:gl_o]}#035#{Mx[:gl_c]}/,'#').
+              gsub(/#{Mx[:gl_o]}#042#{Mx[:gl_c]}/,'*').
+              gsub(/#{Mx[:gl_o]}#045#{Mx[:gl_c]}/,'-').
+              gsub(/#{Mx[:gl_o]}#047#{Mx[:gl_c]}/,'/').
+              gsub(/#{Mx[:gl_o]}#095#{Mx[:gl_c]}/,'_').
+              gsub(/#{Mx[:gl_o]}#123#{Mx[:gl_c]}/,'{').
+              gsub(/#{Mx[:gl_o]}#125#{Mx[:gl_c]}/,'}').
+              gsub(/#{Mx[:gl_o]}#126#{Mx[:gl_c]}/,'~').
+              gsub(/#{Mx[:gl_o]}#169#{Mx[:gl_c]}/,'©').
+              gsub(/#{Mx[:gl_o]}#092#{Mx[:gl_c]}/,'\\')
+          end
+          dob.obj=if dob.of==:block                                   # watch
+            dob.obj.gsub(/#{Mx[:gl_o]}●#{Mx[:gl_c]}/m,"* ").
+              gsub(/\n?#{Mx[:br_line]}\n?|\n?#{Mx[:br_nl]}\n?/m,break_line)
+          else dob.obj.gsub(/\n?#{Mx[:br_line]}\n?|\n?#{Mx[:br_nl]}\n?/m,break_line*2)
+          end
+          if dob.is==:code
+            dob.obj=dob.obj.gsub(/(^|[^}])_([<>])/m,'\1\2'). # _> _<
+              gsub(/(^|[^}])_([<>])/m,'\1\2') # _<_<
+          end
+          dob.obj=dob.obj.gsub(/#{Mx[:url_o]}_(\S+?)#{Mx[:url_c]}/,'\1').
+            gsub(/<a href=".+?">(.+?)<\/a>/m,'\1').
+            gsub(/#{Mx[:mk_o]}:name#(\S+?)#{Mx[:mk_c]}/,'').                       # remove name links
+            gsub(/&nbsp;|#{Mx[:nbsp]}/,' ').                                       # decide on
+            gsub(/(?:^|[^_\\])#{Mx[:lnk_o]}(\S+?\.(?:png|jpg|gif)) .+?#{Mx[:lnk_c]}#{Mx[:url_o]}\S+?#{Mx[:url_c]}/,'    [ \1 ]'). #"[ #{dir.url.images_local}\/\\1 ]")
+            gsub(/(?:^|[^_\\])#{Mx[:lnk_o]}(\S+?\.(?:png|jpg|gif)) .+?#{Mx[:lnk_c]}image/,'    [ \1 ]').
+            gsub(/(?:^|[^_\\])\{\s*\S+?\.(?:png|jpg|gif)\s+.+?"(.*?)"\s*\}\S+/,'[image: "\1"]')
+          if dob.obj !~/(^#{Rx[:meta]}|#{Mx[:br_eof]}|#{Mx[:br_endnotes]})/
+            p_num=''
+            #ocn
+            if dob.is==:heading \
+            or dob.is==:para
+              plaintext_structure(dob,p_num)
+            elsif dob.is==:group \
+            or dob.is==:block \
+            or dob.is==:verse \
+            or dob.is==:code \
+            or dob.is==:table
+              @plaintext[:body] << dob.obj + p_num << break_line
+            elsif dob.is==:break
+              sp=' '
+              ln='-'
+              @plaintext[:body] <<=if dob.obj==Mx[:br_page] \
+              or dob.obj==Mx[:br_page_new] \
+              or dob.obj==Mx[:br_page_line]
+                "#{break_line}#{ln*40}#{break_line*2}"
+              elsif dob.obj ==Mx[:br_obj]
+                "#{break_line}#{sp*20}*  *  *#{break_line*2}"
+              end # following empty line (break_line) missing, fix
+            end
+            dob='' if (dob.obj =~/<a name="n\d+">/ \
+              and dob.obj =~/^(-\{{2}~\d+|<!e[:_]\d+!>)/) # -endnote
+            if dob ## Clean Prepared Text
+              dob.obj=dob.obj.gsub(/<!.+!>/,' ').
+                gsub(/<:\S+>/,' ')
+            end
+          end
+        end
+        @plaintext
+      end
+      def publish(plaintext)
+        divider='='
+        content=[]
+        content << plaintext[:open]
+        content << plaintext[:head]
+        content << plaintext[:body]
+        content << @@endnotes[:end] if @@endnotes_
+        content << "#{break_line}#{divider*@wrap_width}#{break_line}"
+        content << plaintext[:metadata]
+        content << "#{break_line}#{divider*@wrap_width}#{break_line}" if @md.stmp =~/\w+/ #not used?
+        content << plaintext[:tail]
+        Output.new(content,@md).rst
+        @@endnotes={ para: [], end: [] }
+      end
+    end
+    class Output <Source
+      include SiSU_Param
+      include SiSU_Env
+      def initialize(content,md)
+        @content,@md=content,md
+      end
+      def rst
+        file_plaintext=SiSU_Env::FileOp.new(@md).write_file.rst
+        @sisu=[]
+        emptyline=0
+        @content.each do |para|                                                # this is a hack
+          if para.is_a?(Array) \
+          and para.length > 0
+            para.each do |line|
+              if line
+                line=line.gsub(/[ \t]+$/m,'').
+                  gsub(/^\A[ ]*\Z/m,'')
+                (line=~/^\A\Z/) \
+                ? (emptyline+=1)
+                : emptyline=0
+                if emptyline < 2                     #remove additional empty lines
+                  file_plaintext.puts line
+                end
+              end
+            end
+          else file_plaintext.puts para          #unix plaintext # /^([*=-]|\.){5}/
+          end
+        end
+        file_plaintext.close
+      end
+    end
+  end
+end
+__END__
diff --git a/lib/sisu/v5/shared_txt.rb b/lib/sisu/v5/txt_shared.rb
index 8e8e7edb..31a976d2 100644
--- a/lib/sisu/v5/shared_txt.rb
+++ b/lib/sisu/v5/txt_shared.rb
@@ -50,7 +50,7 @@
 
  * 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/shared_txt.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/txt_shared.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
@@ -64,12 +64,14 @@ module SiSU_TextUtils
     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
       @n_char_max_extend = n_char_max
-      @br="\n"
       @n_hang=n_hang ? n_hang : @n_indent
     end
+    def break_line
+      "\n"
+    end
     def line_wrap
       space=' '
-      spaces_indent,spaces_hang="#{@br}#{space*@n_indent}",space*@n_hang
+      spaces_indent,spaces_hang="#{break_line}#{space*@n_indent}",space*@n_hang
       line=0
       out=[]
       out[line]=''
@@ -126,6 +128,12 @@ module SiSU_TextUtils
       end
       @arr
     end
+    def no_wrap
+      @para
+    end
+    def no_wrap_no_breaks
+      @para.gsub(/\n/m,' ').gsub(/\s\s+/,' ')
+    end
   end
   class HeaderScan
     def initialize(md,para)
diff --git a/lib/sisu/v5/txt_textile.rb b/lib/sisu/v5/txt_textile.rb
new file mode 100644
index 00000000..429593cc
--- /dev/null
+++ b/lib/sisu/v5/txt_textile.rb
@@ -0,0 +1,543 @@
+# encoding: utf-8
+=begin
+
+ * Name: SiSU
+
+ * Description: a framework for document structuring, publishing and search
+
+ * Author: Ralph Amissah
+
+ * Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+   2007, 2008, 2009, 2010, 2011, 2012, 2013 Ralph Amissah, All Rights Reserved.
+
+ * License: GPL 3 or later:
+
+   SiSU, a framework for document structuring, publishing and search
+
+   Copyright (C) Ralph Amissah
+
+   This program is free software: you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by the Free
+   Software Foundation, either version 3 of the License, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful, but WITHOUT
+   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+   FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+   more details.
+
+   You should have received a copy of the GNU General Public License along with
+   this program. If not, see <http://www.gnu.org/licenses/>.
+
+   If you have Internet connection, the latest version of the GPL should be
+   available at these locations:
+   <http://www.fsf.org/licensing/licenses/gpl.html>
+   <http://www.gnu.org/licenses/gpl.html>
+
+   <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+ * SiSU uses:
+   * Standard SiSU markup syntax,
+   * Standard SiSU meta-markup syntax, and the
+   * Standard SiSU object citation numbering and system
+
+ * Hompages:
+   <http://www.jus.uio.no/sisu>
+   <http://www.sisudoc.org>
+
+ * Download:
+   <http://www.sisudoc.org/sisu/en/SiSU/download.html>
+
+ * 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/plaintext_textile.rb;hb=HEAD>
+
+ * Ralph Amissah
+   <ralph@amissah.com>
+   <ralph.amissah@gmail.com>
+
+ ** Description: plaintext (smarttext) generation, textile
+
+=end
+module SiSU_Txt_Textile
+  require_relative 'ao'                                 # ao.rb
+  require_relative 'sysenv'                             # sysenv.rb
+    include SiSU_Env
+  require_relative 'shared_metadata'                    # shared_metadata.rb
+  require_relative 'txt_shared'                         # txt_shared.rb
+  include SiSU_Param
+  include SiSU_Viz
+  @@alt_id_count,@@alt_id_count,@@tablehead,@@number_of_cols=0,0,0,0
+  @@tablefoot=''
+  class Source
+    def initialize(opt)
+      @opt=opt
+      unless @opt.fns =~/(.+?)\.(?:-|ssm\.)?sst$/
+        puts "#{sf} not a processed file type"
+      end
+    end
+    def read
+      begin
+        md=SiSU_Param::Parameters.new(@opt).get
+        env=SiSU_Env::InfoEnv.new(@opt.fns)
+        unless @opt.act[:quiet][:set]==:on
+          tool=(@opt.act[:verbose][:set]==:on \
+          || @opt.act[:verbose_plus][:set]==:on \
+          || @opt.act[:maintenance][:set]==:on) \
+          ? "#{env.program.text_editor} #{md.file.output_path.textile.dir}/#{md.file.base_filename.textile}"
+          : "[#{@opt.f_pth[:lng_is]}] #{@opt.fno}"
+          (@opt.act[:verbose][:set]==:on \
+          || @opt.act[:verbose_plus][:set]==:on \
+          || @opt.act[:maintenance][:set]==:on) \
+          ? SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'Textile (plaintext utf-8)',tool).green_hi_blue
+          : SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'Textile (plaintext utf-8)',tool).green_title_hi
+          if (@opt.act[:verbose_plus][:set]==:on \
+          || @opt.act[:maintenance][:set]==:on)
+            SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],@opt.fns,"#{md.file.output_path.textile.dir}/#{md.file.base_filename.textile}").flow
+          end
+        end
+        ao_array=SiSU_AO::Source.new(@opt).get # ao file drawn here
+        wrap_width=if defined? md.make.plaintext_wrap \
+        and md.make.plaintext_wrap
+          md.make.plaintext_wrap
+        elsif defined? env.plaintext_wrap \
+        and env.plaintext_wrap
+          env.plaintext_wrap
+        else 78
+        end
+        #wrap_width=(defined? md.make.plaintext_wrap) ? md.make.plaintext_wrap : 78
+        SiSU_Txt_Textile::Source::Scroll.new(md,ao_array,wrap_width).songsheet
+      rescue
+        SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
+          __LINE__.to_s + ':' + __FILE__
+        end
+      ensure
+      end
+    end
+    private
+    class Scroll <Source
+      require_relative 'defaults'                       # defaults.rb
+      require_relative 'txt_shared'                     # txt_shared.rb
+        include SiSU_TextUtils
+      @@endnotes={ para: [], end: [] }
+      def initialize(md,data,wrap_width)
+        @md,@data,@wrap_width=md,data,wrap_width
+        @env=SiSU_Env::InfoEnv.new(@md.fns)
+        @brace_url=SiSU_Viz::Defaults.new.url_decoration
+        @tab="\t"
+        @@endnotes_=case md.opt.mod.inspect
+        when /--footnote/; false
+        when /--endnote/; true
+        else true
+        end
+        @plaintext={ body: [], open: [], close: [], head: [], metadata: [], tail: [] }
+      end
+      def songsheet
+        plaintext=markup(@data)
+        publish(plaintext)
+      end
+      def break_line
+        "\n"
+      end
+      # Used for extraction of endnotes from paragraphs
+      def extract_endnotes(dob='')
+        notes=dob.obj.scan(/(?:#{Mx[:en_a_o]}|#{Mx[:en_b_o]})([\d*+]+\s+.+?)(?:#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/)
+        @n=[]
+        notes.flatten.each do |n| #high cost to deal with <br> appropriately within plaintext, consider
+          n=n.dup.to_s
+          if n =~/#{Mx[:br_line]}|#{Mx[:br_nl]}/
+            fix = n.split(/#{Mx[:br_line]}|#{Mx[:br_nl]}/) #watch #added
+            fix.each do |x|
+              unless x.empty?; @n << x
+              end
+            end
+          else                 @n << n
+          end
+        end
+        notes=@n.flatten
+        notes.each do |e|
+          util=(e.to_s =~/^\[[\d*+]+\]:/) \
+          ? (SiSU_TextUtils::Wrap.new(e.to_s,@wrap_width,4,1))
+          : (SiSU_TextUtils::Wrap.new(e.to_s,@wrap_width,1,1))
+          wrap=util.line_wrap
+          wrap=if wrap =~ /^\s*[\d*+]+\s+.+?\s*\Z/m
+            wrap.gsub(/^(\s*)([\d*+]+)\s+(.+?)\s*\Z/m, <<-GSUB
+\\1[\\2]: \\3
+              GSUB
+            )
+          else
+            wrap.gsub(/^(.+)\Z/m, <<-GSUB
+\\1
+              GSUB
+            )
+          end
+          @@endnotes[:para] << "-#{wrap}"
+          @@endnotes[:end] << '' << wrap
+        end
+        @@endnotes
+      end
+      def plaintext_metadata
+        array=SiSU_Metadata::Summary.new(@md).plaintext.metadata
+        array.each do |meta|
+          tag,inf=meta.scan(/^.+?:\s|.+/)
+          if tag and inf
+            util=SiSU_TextUtils::Wrap.new(inf,@wrap_width,15,1)
+            txt=util.line_wrap
+            @plaintext[:metadata] <<<<WOK
+
+#{@tab}#{tag}#{txt}
+WOK
+          end
+        end
+      end
+      def plaintext_tail
+#       env=SiSU_Env::InfoEnv.new(@md.fns)
+        vz=SiSU_Viz::Defaults.new
+        generator="Generated by: #{@md.sisu_version[:project]} #{@md.sisu_version[:version]} of #{@md.sisu_version[:date_stamp]} (#{@md.sisu_version[:date]})"  if @md.sisu_version[:version]
+        lastdone="Last Generated on: #{Time.now}"
+        rubyv="Ruby version: #{@md.ruby_version}"
+        sc=if @md.sc_info
+          "Source file:    #{@md.sc_filename}#{break_line}Version number: #{@md.sc_number}#{break_line}Version date:   #{@md.sc_date}#{break_line}"
+        else ''
+        end
+        @plaintext[:tail] <<<<WOK
+#{break_line}
+plaintext (plain text):
+   #{@md.file.output_path.textile.url}/#{@md.file.base_filename.textile}#{break_line}
+Other versions of this document: #{break_line}
+manifest:
+   #{@md.file.output_path.manifest.url}/#{@md.file.base_filename.manifest}#{break_line}
+at:
+   #{@md.file.output_path.base.url}#{break_line}
+
+#{sc}
+* #{generator}
+* #{rubyv}
+* #{lastdone}
+* SiSU #{vz.url_sisu}
+WOK
+      end
+      def decorate
+        def heading
+          def inline
+            def l1
+              'h1. '
+            end
+            def l2
+              'h2. '
+            end
+            def l3
+              'h3. '
+            end
+            def l4
+              'h4. '
+            end
+            def l5
+              'h5. '
+            end
+            def l6
+              'h6. '
+            end
+            self
+          end
+          self
+        end
+        def bold
+          def open
+            '*'
+          end
+          def close
+            '*'
+          end
+          self
+        end
+        def italics
+          def open
+            '_'
+          end
+          def close
+            '_'
+          end
+          self
+        end
+        def underscore
+          def open
+            '+'
+          end
+          def close
+            '+'
+          end
+          self
+        end
+       #def emphasis
+       #  def open
+       #    ''
+       #  end
+       #  def close
+       #    ''
+       #  end
+       #  self
+       #end
+        def cite
+          def open
+            '"'
+          end
+          def close
+            '"'
+          end
+          self
+        end
+        def insert
+          def open
+            ''
+          end
+          def close
+            ''
+          end
+          self
+        end
+        def strike
+          def open
+            '-'
+          end
+          def close
+            '-'
+          end
+          self
+        end
+        def superscript
+          def open
+            '^'
+          end
+          def close
+            '^'
+          end
+          self
+        end
+        def subscript
+          def open
+            '~'
+          end
+          def close
+            '~'
+          end
+          self
+        end
+        def hilite
+          def open
+            '*'
+          end
+          def close
+            '*'
+          end
+          self
+        end
+        def monospace
+          def open
+            ''
+          end
+          def close
+            ''
+          end
+          self
+        end
+        self
+      end
+      def heading_decorated_inline(dob)
+        heading_inline = case dob.lc
+        when 1;      decorate.heading.inline.l1
+        when 2;      decorate.heading.inline.l2
+        when 3;      decorate.heading.inline.l3
+        when 4;      decorate.heading.inline.l4
+        when 5;      decorate.heading.inline.l5
+        when 6;      decorate.heading.inline.l6
+        end
+        heading_inline + ' ' +  dob.obj
+      end
+      def plaintext_structure(dob='',p_num='') #% Used to extract the structure of a document
+        util=nil
+        wrapped=if dob.is==:para \
+        || dob.is==:heading
+          if dob.is==:heading
+            util=SiSU_TextUtils::Wrap.new(heading_decorated_inline(dob),@wrap_width,0,0)
+          elsif dob.is==:para
+            if dob.hang \
+            and dob.hang =~/[0-9]/ \
+            and dob.indent != dob.hang
+              util=SiSU_TextUtils::Wrap.new(dob.obj,@wrap_width,dob.indent.to_i*2,dob.hang.to_i*2)
+              #util=SiSU_TextUtils::Wrap.new(dob.obj,@wrap_width,dob.hang.to_i*2,0)
+            elsif dob.indent =~/[1-9]/
+              util=if dob.bullet_
+                SiSU_TextUtils::Wrap.new("* #{dob.obj}",@wrap_width,dob.indent.to_i*2)
+              else SiSU_TextUtils::Wrap.new(dob.obj,@wrap_width,dob.indent.to_i*2)
+              end
+            else
+              util=if dob.bullet_
+                SiSU_TextUtils::Wrap.new("* #{dob.obj}",@wrap_width,0)
+              else SiSU_TextUtils::Wrap.new(dob.obj,@wrap_width,0)
+              end
+            end
+          else util=SiSU_TextUtils::Wrap.new(dob.obj,@wrap_width,0)
+          end
+          dob.is==:heading ? util.no_wrap_no_breaks : util.line_wrap
+        end
+        @plaintext[:body] << wrapped + p_num << break_line # main text, contents, body KEEP
+        if @@endnotes[:para] \
+        and not @@endnotes_
+          @@endnotes[:para].each {|e| @plaintext[:body] << e << break_line}
+        elsif @@endnotes[:para] \
+        and @@endnotes_
+        end
+        @@endnotes[:para]=[]
+      end
+      def markup(data)                                                       # Used for major markup instructions
+        SiSU_Env::InfoEnv.new(@md.fns)
+        @data_mod,@endnotes,@level,@cont,@copen,@plaintext_contents_close=Array.new(6){[]}
+        (0..6).each { |x| @cont[x]=@level[x]=false }
+        (4..6).each { |x| @plaintext_contents_close[x]='' }
+        plaintext_tail #($1,$2)
+        plaintext_metadata
+        table_message='[table conversion awaited, see other document formats]'
+        data.each do |dob|
+          dob.obj=dob.obj.gsub(/#{Mx[:gr_o]}Th?#{Mx[:tc_p]}.+/um,"#{break_line}#{table_message}"). #fix
+            gsub(/.+?#{Mx[:gl_o]}-##{Mx[:gl_c]}/,'').                              # remove dummy headings (used by html) #check also [~-]#
+            gsub(/#{Mx[:fa_bold_o]}(.+?)#{Mx[:fa_bold_c]}/,
+              "#{decorate.bold.open}\\1#{decorate.bold.close}").
+            gsub(/#{Mx[:fa_italics_o]}(.+?)#{Mx[:fa_italics_c]}/,
+              "#{decorate.italics.open}\\1#{decorate.italics.close}").
+            gsub(/#{Mx[:fa_underscore_o]}(.+?)#{Mx[:fa_underscore_c]}/,
+              "#{decorate.underscore.open}\\1#{decorate.underscore.close}").
+            gsub(/#{Mx[:fa_subscript_o]}(.+?)#{Mx[:fa_subscript_c]}/,
+              "#{decorate.subscript.open}\\1#{decorate.subscript.close}").
+            gsub(/#{Mx[:fa_superscript_o]}(.+?)#{Mx[:fa_superscript_c]}/,
+              "#{decorate.superscript.open}\\1#{decorate.superscript.close}").
+            gsub(/#{Mx[:fa_insert_o]}(.+?)#{Mx[:fa_insert_c]}/,
+              "#{decorate.insert.open}\\1#{decorate.insert.close}").
+            gsub(/#{Mx[:fa_cite_o]}(.+?)#{Mx[:fa_cite_c]}/,
+              "#{decorate.cite.open}\\1#{decorate.cite.close}").
+            gsub(/#{Mx[:fa_strike_o]}(.+?)#{Mx[:fa_strike_c]}/,
+              "#{decorate.strike.open}\\1#{decorate.strike.close}").
+            gsub(/#{Mx[:fa_monospace_o]}(.+?)#{Mx[:fa_monospace_c]}/,
+              "#{decorate.monospace.open}\\1#{decorate.monospace.close}")
+          unless dob.is==:code
+            dob.obj=dob.obj.gsub(/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}#{Mx[:rel_o]}\S+?#{Mx[:rel_c]}/,'\1').
+              gsub(/#{Mx[:url_o]}_(\S+?)#{Mx[:url_c]}/,'\1').
+              gsub(/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,'\1 [link: <\2>]').
+              gsub(/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}image/,'\1 [link: local image]').
+              gsub(/#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,"#{@brace_url.txt_open}\\1#{@brace_url.txt_close}")
+            extract_endnotes(dob)
+            dob.obj=dob.obj.gsub(/#{Mx[:en_a_o]}([\d*+]+)\s+(?:.+?)#{Mx[:en_a_c]}/,'[^\1]'). # endnote marker marked up
+              gsub(/#{Mx[:en_b_o]}([\d*+]+)\s+(?:.+?)#{Mx[:en_b_c]}/,'[^\1]'). # endnote marker marked up
+              gsub(/#{Mx[:gl_o]}(?:#lt|#060)#{Mx[:gl_c]}/,'<').
+              gsub(/#{Mx[:gl_o]}(?:#gt|#062)#{Mx[:gl_c]}/,'>').
+              gsub(/#{Mx[:gl_o]}#(?:038|amp)#{Mx[:gl_c]}/,'&').
+              gsub(/#{Mx[:gl_o]}#033#{Mx[:gl_c]}/,'!').
+              gsub(/#{Mx[:gl_o]}#035#{Mx[:gl_c]}/,'#').
+              gsub(/#{Mx[:gl_o]}#042#{Mx[:gl_c]}/,'*').
+              gsub(/#{Mx[:gl_o]}#045#{Mx[:gl_c]}/,'-').
+              gsub(/#{Mx[:gl_o]}#047#{Mx[:gl_c]}/,'/').
+              gsub(/#{Mx[:gl_o]}#095#{Mx[:gl_c]}/,'_').
+              gsub(/#{Mx[:gl_o]}#123#{Mx[:gl_c]}/,'{').
+              gsub(/#{Mx[:gl_o]}#125#{Mx[:gl_c]}/,'}').
+              gsub(/#{Mx[:gl_o]}#126#{Mx[:gl_c]}/,'~').
+              gsub(/#{Mx[:gl_o]}#169#{Mx[:gl_c]}/,'©').
+              gsub(/#{Mx[:gl_o]}#092#{Mx[:gl_c]}/,'\\')
+          end
+          dob.obj=if dob.of==:block                                   # watch
+            dob.obj.gsub(/#{Mx[:gl_o]}●#{Mx[:gl_c]}/m,"* ").
+              gsub(/\n?#{Mx[:br_line]}\n?|\n?#{Mx[:br_nl]}\n?/m,break_line)
+          else dob.obj.gsub(/\n?#{Mx[:br_line]}\n?|\n?#{Mx[:br_nl]}\n?/m,break_line*2)
+          end
+          if dob.is==:code
+            dob.obj=dob.obj.gsub(/(^|[^}])_([<>])/m,'\1\2'). # _> _<
+              gsub(/(^|[^}])_([<>])/m,'\1\2') # _<_<
+          end
+          dob.obj=dob.obj.gsub(/#{Mx[:url_o]}_(\S+?)#{Mx[:url_c]}/,'\1').
+            gsub(/<a href=".+?">(.+?)<\/a>/m,'\1').
+            gsub(/#{Mx[:mk_o]}:name#(\S+?)#{Mx[:mk_c]}/,'').                       # remove name links
+            gsub(/&nbsp;|#{Mx[:nbsp]}/,' ').                                       # decide on
+            gsub(/(?:^|[^_\\])#{Mx[:lnk_o]}(\S+?\.(?:png|jpg|gif)) .+?#{Mx[:lnk_c]}#{Mx[:url_o]}\S+?#{Mx[:url_c]}/,'    [ \1 ]'). #"[ #{dir.url.images_local}\/\\1 ]")
+            gsub(/(?:^|[^_\\])#{Mx[:lnk_o]}(\S+?\.(?:png|jpg|gif)) .+?#{Mx[:lnk_c]}image/,'    [ \1 ]').
+            gsub(/(?:^|[^_\\])\{\s*\S+?\.(?:png|jpg|gif)\s+.+?"(.*?)"\s*\}\S+/,'[image: "\1"]')
+          if dob.obj !~/(^#{Rx[:meta]}|#{Mx[:br_eof]}|#{Mx[:br_endnotes]})/
+            p_num=''
+            #ocn
+            if dob.is==:heading \
+            or dob.is==:para
+              plaintext_structure(dob,p_num)
+            elsif dob.is==:group \
+            or dob.is==:block \
+            or dob.is==:verse \
+            or dob.is==:code \
+            or dob.is==:table
+              @plaintext[:body] << dob.obj + p_num << break_line
+            elsif dob.is==:break
+              sp=' '
+              ln='-'
+              @plaintext[:body] <<=if dob.obj==Mx[:br_page] \
+              or dob.obj==Mx[:br_page_new] \
+              or dob.obj==Mx[:br_page_line]
+                "#{break_line}#{ln*40}#{break_line*2}"
+              elsif dob.obj ==Mx[:br_obj]
+                "#{break_line}#{sp*20}*  *  *#{break_line*2}"
+              end # following empty line (break_line) missing, fix
+            end
+            dob='' if (dob.obj =~/<a name="n\d+">/ \
+              and dob.obj =~/^(-\{{2}~\d+|<!e[:_]\d+!>)/) # -endnote
+            if dob ## Clean Prepared Text
+              dob.obj=dob.obj.gsub(/<!.+!>/,' ').
+                gsub(/<:\S+>/,' ')
+            end
+          end
+        end
+        @plaintext
+      end
+      def publish(plaintext)
+        divider='='
+        content=[]
+        content << plaintext[:open]
+        content << plaintext[:head]
+        content << plaintext[:body]
+        content << @@endnotes[:end] if @@endnotes_
+        content << "#{break_line}#{divider*@wrap_width}#{break_line}"
+        content << plaintext[:metadata]
+        content << "#{break_line}#{divider*@wrap_width}#{break_line}" if @md.stmp =~/\w+/ #not used?
+        content << plaintext[:tail]
+        Output.new(content,@md).textile
+        @@endnotes={ para: [], end: [] }
+      end
+    end
+    class Output <Source
+      include SiSU_Param
+      include SiSU_Env
+      def initialize(content,md)
+        @content,@md=content,md
+      end
+      def textile
+        file_plaintext=SiSU_Env::FileOp.new(@md).write_file.textile
+        @sisu=[]
+        emptyline=0
+        @content.each do |para|                                                # this is a hack
+          if para.is_a?(Array) \
+          and para.length > 0
+            para.each do |line|
+              if line
+                line=line.gsub(/[ \t]+$/m,'').
+                  gsub(/^\A[ ]*\Z/m,'')
+                (line=~/^\A\Z/) \
+                ? (emptyline+=1)
+                : emptyline=0
+                if emptyline < 2                     #remove additional empty lines
+                  file_plaintext.puts line
+                end
+              end
+            end
+          else file_plaintext.puts para          #unix plaintext # /^([*=-]|\.){5}/
+          end
+        end
+        file_plaintext.close
+      end
+    end
+  end
+end
+__END__
diff --git a/lib/sisu/v5/urls.rb b/lib/sisu/v5/urls.rb
index a7b53985..ce3be66b 100644
--- a/lib/sisu/v5/urls.rb
+++ b/lib/sisu/v5/urls.rb
@@ -105,7 +105,7 @@ module SiSU_Urls
         'h --html (HTML scroll)'=>@fn[:doc],
         'I --texinfo (Info file)'=>'info',
         'i --manpage (manpage)'=>'manpage',
-        'm --dal (Document Abstraction)'=>'dal',
+        'm --ao (Document Abstraction)'=>'ao',
         'N --hash-digests (Digests md5/sha256)'=>@fn[:digest],
         'o --odt (ODF:ODT - Open Document)'=>@fn[:odf],
         'p --pdf (PDF landscape)'=>@fn[:pdf_l],
@@ -114,6 +114,12 @@ module SiSU_Urls
         's --source (sisu markup)'=>@opt.fno,
         'S --sisupod (sisupod)'=>@fn[:sisupod],
         't --txt (Plain-text (endnotes))'=>@fn[:plain],
+        '  --textile (textile txt)'=>@fn[:txt_textile],
+        '  --asciidoc (asciidoc txt)'=>@fn[:txt_asciidoc],
+        '  --markdown (markdown txt)'=>@fn[:txt_markdown],
+        '  --rst (rST restructured-text)'=>@fn[:txt_rst],
+        '  --docbook-book (DocBook Book)'=>@fn[:xml_docbook_book],
+        '  --fictionbook (Fictionbook)'=>@fn[:xml_fictionbook],
         'x --xml-sax (XML sax type)'=>@fn[:sax],
         'X --xml-dom (XML dom type)'=>@fn[:dom],
         '  --xml-scaffold-sisu (XML scaffold)'=>@fn[:xml_scaffold_structure_sisu],
@@ -153,6 +159,18 @@ module SiSU_Urls
       def text(x)
         SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],"[#{@opt.f_pth[:lng_is]}] -#{x}","#{@prog.web_browser} file://#{@md.file.output_path.txt.dir}/#{@md.file.base_filename.txt}").result
       end
+      def textile(x)
+        SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],"[#{@opt.f_pth[:lng_is]}] -#{x}","#{@prog.web_browser} file://#{@md.file.output_path.textile.dir}/#{@md.file.base_filename.textile}").result
+      end
+      def asciidoc(x)
+        SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],"[#{@opt.f_pth[:lng_is]}] -#{x}","#{@prog.web_browser} file://#{@md.file.output_path.asciidoc.dir}/#{@md.file.base_filename.asciidoc}").result
+      end
+      def markdown(x)
+        SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],"[#{@opt.f_pth[:lng_is]}] -#{x}","#{@prog.web_browser} file://#{@md.file.output_path.markdown.dir}/#{@md.file.base_filename.markdown}").result
+      end
+      def rst(x)
+        SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],"[#{@opt.f_pth[:lng_is]}] -#{x}","#{@prog.web_browser} file://#{@md.file.output_path.rst.dir}/#{@md.file.base_filename.rst}").result
+      end
       def epub(x)
         SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],"[#{@opt.f_pth[:lng_is]}] -#{x}","#{@prog.epub_viewer} #{@md.file.output_path.epub.dir}/#{@md.file.base_filename.epub}").result
       end
@@ -211,6 +229,12 @@ module SiSU_Urls
         def dom(x)
           SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],"[#{@opt.f_pth[:lng_is]}] -#{x}","#{@prog.web_browser} file://#{@md.file.output_path.xml_dom.dir}/#{@md.file.base_filename.xml_dom}").result
         end
+        def docbook_book(x)
+          SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],"[#{@opt.f_pth[:lng_is]}] -#{x}","#{@prog.web_browser} file://#{@md.file.output_path.xml_docbook_book.dir}/#{@md.file.base_filename.xml_docbook_book}").result
+        end
+        def fictionbook(x)
+          SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],"[#{@opt.f_pth[:lng_is]}] -#{x}","#{@prog.web_browser} file://#{@md.file.output_path.xml_fictionbook.dir}/#{@md.file.base_filename.xml_fictionbook}").result
+        end
         def scaffold_structure_sisu(x)
           SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],"[#{@opt.f_pth[:lng_is]}] -#{x}","#{@prog.web_browser} file://#{@md.file.output_path.xml_scaffold_structure_sisu.dir}/#{@md.file.base_filename.xml_scaffold_structure_sisu}").result
         end
@@ -249,7 +273,7 @@ module SiSU_Urls
         if x =~/^m/ \
         and @opt.cmd=~/m/ \
         and x=~/^[#{opt.cmd}]/
-          SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],"-#{x}","#{@prog.text_editor} #{@env.processing_path.dal}/#{@opt.fns}.meta").maintenance
+          SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],"-#{x}","#{@prog.text_editor} #{@env.processing_path.ao}/#{@opt.fns}.meta").maintenance
         end
         if x=~/^([hw])/ \
         and @opt.cmd=~/[hw]/ \
@@ -310,6 +334,22 @@ module SiSU_Urls
               and @opt.act[:txt][:set]==:on
                 show.text(x)
               end
+              if x=~/--textile\b/ \
+              and @opt.act[:txt_textile][:set]==:on
+                show.textile(x)
+              end
+              if x=~/--asciidoc\b/ \
+              and @opt.act[:txt_asciidoc][:set]==:on
+                show.asciidoc(x)
+              end
+              if x=~/--markdown\b/ \
+              and @opt.act[:txt_markdown][:set]==:on
+                show.markdown(x)
+              end
+              if x=~/--rst\b/ \
+              and @opt.act[:txt_rst][:set]==:on
+                show.rst(x)
+              end
               if x=~/--xhtml\b/ \
               and @opt.act[:xhtml][:set]==:on
                 show.xhtml(x)
@@ -406,6 +446,14 @@ module SiSU_Urls
               and @opt.act[:xml_sax][:set]==:on
                 show.xml.sax(x)
               end
+              if x=~/--docbook-book\b/ \
+              and @opt.act[:xml_docbook_book][:set]==:on
+                show.xml.docbook_book(x)
+              end
+              if x=~/--fictionbook\b/ \
+              and @opt.act[:xml_fictionbook][:set]==:on
+                show.xml.fictionbook(x)
+              end
               if x=~/--xml-scaffold-sisu\b/ \
               and @opt.act[:xml_scaffold_structure_sisu][:set]==:on
                 show.xml.scaffold_structure_sisu(x)
diff --git a/lib/sisu/v5/wikispeak.rb b/lib/sisu/v5/wikispeak.rb
index da8fc9fa..b87fef61 100644
--- a/lib/sisu/v5/wikispeak.rb
+++ b/lib/sisu/v5/wikispeak.rb
@@ -60,14 +60,14 @@
 
 =end
 module SiSU_Wikispeak
-  require_relative 'dal'                                # dal.rb
+  require_relative 'ao'                                 # ao.rb
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env
   include SiSU_Param
   include SiSU_Viz
   require_relative 'plaintext_format'                   # plaintext_format.rb
     include Format
-  require_relative 'shared_txt'
+  require_relative 'txt_shared'
   @@alt_id_count,@@alt_id_count,@@tablehead,@@number_of_cols=0,0,0,0
   @@tablefoot=''
   class Source
@@ -90,8 +90,8 @@ module SiSU_Wikispeak
         || @opt.act[:maintenance][:set]==:on)
           SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],@opt.fns,"#{@env.path.output_tell}/#{@md.fnb}/#{@md.fn[:wiki]}").flow
         end
-        @dal_array=SiSU_DAL::Source.new(@opt).get # dal file drawn here
-        SiSU_Wikispeak::Source::Scroll.new(@dal_array,@md).songsheet
+        @ao_array=SiSU_AO::Source.new(@opt).get # ao file drawn here
+        SiSU_Wikispeak::Source::Scroll.new(@ao_array,@md).songsheet
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -149,7 +149,7 @@ module SiSU_Wikispeak
       end
     end
     class Scroll <Source
-      require_relative 'shared_txt'                     # shared_txt.rb
+      require_relative 'txt_shared'                     # txt_shared.rb
         include SiSU_TextUtils
       @@endnotes_para=[]
       @@wiki={ body: [], open: [], close: [], head: [], metadata: [], tail: [], endnotes: [] }
diff --git a/lib/sisu/v5/xhtml.rb b/lib/sisu/v5/xhtml.rb
index 03ba0134..841ae03e 100644
--- a/lib/sisu/v5/xhtml.rb
+++ b/lib/sisu/v5/xhtml.rb
@@ -66,7 +66,7 @@ module SiSU_XHTML
     include SiSU_Particulars
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env
-  require_relative 'shared_xml'                         # shared_xml.rb
+  require_relative 'xml_shared'                         # xml_shared.rb
     include SiSU_XML_Munge
   require_relative 'xml_format'                         # xml_format.rb
     include SiSU_XML_Format
@@ -82,7 +82,7 @@ module SiSU_XHTML
     end
     def read
       begin
-        @env,@md,@dal_array=@particulars.env,@particulars.md,@particulars.dal_array
+        @env,@md,@ao_array=@particulars.env,@particulars.md,@particulars.ao_array
         unless @opt.act[:quiet][:set]==:on
           tool=if (@opt.act[:verbose_plus][:set]==:on \
           || @opt.act[:maintenance][:set]==:on)
@@ -113,7 +113,7 @@ module SiSU_XHTML
     private
     class Songsheet
       def initialize(particulars)
-        @env,@md,@dal_array,@particulars=particulars.env,particulars.md,particulars.dal_array,particulars
+        @env,@md,@ao_array,@particulars=particulars.env,particulars.md,particulars.ao_array,particulars
         @file=SiSU_Env::FileOp.new(@md)
       end
       def song
@@ -134,13 +134,13 @@ module SiSU_XHTML
       end
     end
     class Scroll
-      require_relative 'shared_xhtml'                   # shared_xhtml.rb #check already called
-      require_relative 'shared_txt'                     # shared_txt.rb
+      require_relative 'xhtml_shared'                   # xhtml_shared.rb #check already called
+      require_relative 'txt_shared'                     # txt_shared.rb
         include SiSU_TextUtils
       require_relative 'css'                            # css.rb
       @@xml={ body: [], sisu: [], open: [], close: [], head: [] }
       def initialize(particulars)
-        @env,@md,@dal_array=particulars.env,particulars.md,particulars.dal_array
+        @env,@md,@ao_array=particulars.env,particulars.md,particulars.ao_array
         @vz=SiSU_Viz::Defaults.new
         @tab="\t"
         @trans=SiSU_XML_Munge::Trans.new(@md)
@@ -148,7 +148,7 @@ module SiSU_XHTML
       end
       def songsheet
         pre
-        @data=markup(@dal_array)
+        @data=markup(@ao_array)
         post
         publish
       end
diff --git a/lib/sisu/v5/epub.rb b/lib/sisu/v5/xhtml_epub2.rb
index 37ab535b..c54d77ff 100644
--- a/lib/sisu/v5/epub.rb
+++ b/lib/sisu/v5/xhtml_epub2.rb
@@ -59,20 +59,20 @@
  ** Description: epub generation, processing
 
 =end
-module SiSU_EPUB
+module SiSU_XHTML_EPUB2
   require 'pstore'
   require_relative 'particulars'                        # particulars.rb
     include SiSU_Particulars
   require_relative 'defaults'                           # defaults.rb
     include SiSU_Viz
   require_relative 'xhtml_table'                        # xhtml_table.rb
-  require_relative 'epub_format'                        # epub_format.rb
-    include SiSU_EPUB_Format
-  require_relative 'epub_segments'                      # epub_segments.rb
-    include SiSU_EPUB_Seg
-  require_relative 'epub_tune'                          # epub_tune.rb
-    include SiSU_EPUB_Tune
-  require_relative 'epub_concordance'                   # epub_concordance.rb
+  require_relative 'xhtml_epub2_format'                 # xhtml_epub2_format.rb
+    include SiSU_XHTML_EPUB2_Format
+  require_relative 'xhtml_epub2_segments'               # xhtml_epub2_segments.rb
+    include SiSU_XHTML_EPUB2_Seg
+  require_relative 'xhtml_epub2_tune'                   # xhtml_epub2_tune.rb
+    include SiSU_XHTML_EPUB2_Tune
+  require_relative 'xhtml_epub2_concordance'            # xhtml_epub2_concordance.rb
   class Source
     def initialize(opt)
       @opt=opt
@@ -106,13 +106,13 @@ module SiSU_EPUB
         @env.processing_path.epub_cp_images(@md)
         data=nil
         SiSU_Env::FileOp.new(@md).mkdir.output.epub
-        @tuned_file_array=SiSU_EPUB::Source::XHTML_Environment.new(@particulars).tuned_file_instructions
+        @tuned_file_array=SiSU_XHTML_EPUB2::Source::XHTML_Environment.new(@particulars).tuned_file_instructions
         data=@tuned_file_array
-        toc=SiSU_EPUB::Source::Toc.new(@md,data).songsheet
+        toc=SiSU_XHTML_EPUB2::Source::Toc.new(@md,data).songsheet
         data=@tuned_file_array
-        SiSU_EPUB::Source::ScrollHeadAndSegToc.new(@md,toc).in_common #watch
-        SiSU_EPUB::Source::Seg.new(@md,data).songsheet
-        SiSU_EPUB::Source::Output.new(@md).songsheet
+        SiSU_XHTML_EPUB2::Source::ScrollHeadAndSegToc.new(@md,toc).in_common #watch
+        SiSU_XHTML_EPUB2::Source::Seg.new(@md,data).songsheet
+        SiSU_XHTML_EPUB2::Source::Output.new(@md).songsheet
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -149,13 +149,13 @@ module SiSU_EPUB
       def tuned_file_instructions
         @tell=SiSU_Screen::Ansi.new(@md.opt.act[:color_state][:set])
         directories
-        dal_array=@particulars.dal_array # dal file drawn here
-        @tuned_file_array=SiSU_EPUB_Tune::Tune.new(dal_array,@md).songsheet
+        ao_array=@particulars.ao_array # ao file drawn here
+        @tuned_file_array=SiSU_XHTML_EPUB2_Tune::Tune.new(ao_array,@md).songsheet
         @tuned_file_array
       end
     end
     class Endnotes
-      include SiSU_EPUB_Format
+      include SiSU_XHTML_EPUB2_Format
       def initialize(md,data)
         @md,@data=md,data
       end
@@ -177,7 +177,7 @@ module SiSU_EPUB
               end
               endnote_array.flatten.each do |note|
                 txt_obj={ txt: note }
-                format_scroll=SiSU_EPUB_Format::FormatScroll.new(@md,txt_obj)
+                format_scroll=SiSU_XHTML_EPUB2_Format::FormatScroll.new(@md,txt_obj)
                 @scr_endnotes << format_scroll.endnote_body
               end
             end
@@ -193,7 +193,7 @@ module SiSU_EPUB
       def initialize(md=nil,data='')
         @md,@data=md,data
         @vz=SiSU_Viz::Defaults.new
-        @epub=SiSU_EPUB_Format::HeadInformation.new(@md)
+        @epub=SiSU_XHTML_EPUB2_Format::HeadInformation.new(@md)
         @tell=SiSU_Screen::Ansi.new(@md.opt.act[:color_state][:set]) if @md
         @make=SiSU_Env::ProcessingSettings.new(@md)
       end
@@ -262,7 +262,7 @@ module SiSU_EPUB
               md_opf_a_content << @epub.metadata_opf.manifest_content(dob_toc,lv_name)
               md_opf_a_spine << @epub.metadata_opf.spine(dob_toc,lv_name)
               md_opf_a_guide << @epub.metadata_opf.guide(dob_toc,lv_name)
-              SiSU_EPUB::Source::Toc.new(@md,dob_toc).level_1
+              SiSU_XHTML_EPUB2::Source::Toc.new(@md,dob_toc).level_1
             when 2
               @s_b_no +=1
               lv_name='section_b' + @s_b_no.to_s
@@ -279,7 +279,7 @@ module SiSU_EPUB
               md_opf_a_content << @epub.metadata_opf.manifest_content(dob_toc,lv_name)
               md_opf_a_spine << @epub.metadata_opf.spine(dob_toc,lv_name)
               md_opf_a_guide << @epub.metadata_opf.guide(dob_toc,lv_name)
-              SiSU_EPUB::Source::Toc.new(@md,dob_toc).level_2
+              SiSU_XHTML_EPUB2::Source::Toc.new(@md,dob_toc).level_2
             when 3
               @s_c_no +=1
               lv_name='section_c' + @s_c_no.to_s
@@ -295,7 +295,7 @@ module SiSU_EPUB
               md_opf_a_content << @epub.metadata_opf.manifest_content(dob_toc,lv_name)
               md_opf_a_spine << @epub.metadata_opf.spine(dob_toc,lv_name)
               md_opf_a_guide << @epub.metadata_opf.guide(dob_toc,lv_name)
-              SiSU_EPUB::Source::Toc.new(@md,dob_toc).level_3
+              SiSU_XHTML_EPUB2::Source::Toc.new(@md,dob_toc).level_3
             when 4
               @ncx_cls=[]
               lv_name=dob_toc.name
@@ -309,7 +309,7 @@ module SiSU_EPUB
               md_opf_a_content << @epub.metadata_opf.manifest_content(dob_toc,lv_name)
               md_opf_a_spine << @epub.metadata_opf.spine(dob_toc,lv_name)
               md_opf_a_guide << @epub.metadata_opf.guide(dob_toc,lv_name)
-              SiSU_EPUB::Source::Toc.new(@md,dob_toc).level_4
+              SiSU_XHTML_EPUB2::Source::Toc.new(@md,dob_toc).level_4
             when 5
               @ncx_cls=[]
               hashtag='#o' + dob_toc.ocn.to_s
@@ -322,7 +322,7 @@ module SiSU_EPUB
               md_opf_a_content << @epub.metadata_opf.manifest_content(dob_toc,lv_name,hashtag)
               md_opf_a_spine << @epub.metadata_opf.spine(dob_toc,lv_name,hashtag)
               md_opf_a_guide << @epub.metadata_opf.guide(dob_toc,lv_name,hashtag)
-              SiSU_EPUB::Source::Toc.new(@md,dob_toc).level_5
+              SiSU_XHTML_EPUB2::Source::Toc.new(@md,dob_toc).level_5
             when 6
               @ncx_cls=[]
               hashtag='#o' + dob_toc.ocn.to_s
@@ -334,7 +334,7 @@ module SiSU_EPUB
               md_opf_a_content << @epub.metadata_opf.manifest_content(dob_toc,lv_name,hashtag)
               md_opf_a_spine << @epub.metadata_opf.spine(dob_toc,lv_name,hashtag)
               md_opf_a_guide << @epub.metadata_opf.guide(dob_toc,lv_name,hashtag)
-              SiSU_EPUB::Source::Toc.new(@md,dob_toc).level_6
+              SiSU_XHTML_EPUB2::Source::Toc.new(@md,dob_toc).level_6
             else nil
             end
             toc.each do |k,d|
@@ -374,8 +374,8 @@ module SiSU_EPUB
         @@toc[:opf] << @epub.metadata_opf.guide_open << md_opf_a_guide << @epub.metadata_opf.guide_close
         @@toc[:opf] << @epub.metadata_opf.package_close
         @@toc[:opf]=@@toc[:opf].flatten
-        SiSU_EPUB::Source::Output.new(@md,@@toc[:opf]).epub_metadata_opf
-        SiSU_EPUB::Source::Output.new(@md,@@toc[:ncx]).epub_toc_ncx
+        SiSU_XHTML_EPUB2::Source::Output.new(@md,@@toc[:opf]).epub_metadata_opf
+        SiSU_XHTML_EPUB2::Source::Output.new(@md,@@toc[:ncx]).epub_toc_ncx
         @md.firstseg=@@firstseg
         @@toc
       end
@@ -391,7 +391,7 @@ module SiSU_EPUB
         end
         toc={}
         txt_obj={ txt: title }
-        format_toc=SiSU_EPUB_Format::FormatToc.new(@md,txt_obj)
+        format_toc=SiSU_XHTML_EPUB2_Format::FormatToc.new(@md,txt_obj)
         toc[:seg]=if dob.name =~/^meta/ \
         and dob.obj =~/Document Information/ #check
           format_toc.lev0
@@ -411,7 +411,7 @@ module SiSU_EPUB
           %{<b><a href="##{link}">#{linkname}</a></b>}
         end
         txt_obj={ txt: title }
-        format_toc=SiSU_EPUB_Format::FormatToc.new(@md,txt_obj)
+        format_toc=SiSU_XHTML_EPUB2_Format::FormatToc.new(@md,txt_obj)
         toc[:scr]=if dob.name =~/^meta/ \
         and dob.obj =~/Document Information/
           format_toc.lev0
@@ -424,16 +424,16 @@ module SiSU_EPUB
         linkname,ocn=dob.obj.strip,dob.ocn
         if ocn \
         and ocn !~/#/
-          p_num=SiSU_EPUB_Format::ParagraphNumber.new(@md,ocn)
+          p_num=SiSU_XHTML_EPUB2_Format::ParagraphNumber.new(@md,ocn)
         end
         txt_obj={ txt: linkname }
-        format_toc=SiSU_EPUB_Format::FormatToc.new(@md,txt_obj)
+        format_toc=SiSU_XHTML_EPUB2_Format::FormatToc.new(@md,txt_obj)
         toc={}
         toc[:seg]=format_toc.lev2
         if p_num
           title=%{#{p_num.goto}#{linkname}</a>}
           txt_obj={ txt: title }
-          format_toc=SiSU_EPUB_Format::FormatToc.new(@md,txt_obj)
+          format_toc=SiSU_XHTML_EPUB2_Format::FormatToc.new(@md,txt_obj)
           toc[:scr]=format_toc.lev2
         end
         toc
@@ -443,16 +443,16 @@ module SiSU_EPUB
         linkname,ocn=dob.obj.strip,dob.ocn
         if ocn \
         and ocn !~/#/
-          p_num=SiSU_EPUB_Format::ParagraphNumber.new(@md,ocn)
+          p_num=SiSU_XHTML_EPUB2_Format::ParagraphNumber.new(@md,ocn)
         end
         txt_obj={ txt: linkname }
-        format_toc=SiSU_EPUB_Format::FormatToc.new(@md,txt_obj)
+        format_toc=SiSU_XHTML_EPUB2_Format::FormatToc.new(@md,txt_obj)
         toc={}
         toc[:seg]=format_toc.lev3
         if p_num
           title=%{#{p_num.goto}#{linkname}</a>}
           txt_obj={ txt: title }
-          format_toc=SiSU_EPUB_Format::FormatToc.new(@md,txt_obj)
+          format_toc=SiSU_XHTML_EPUB2_Format::FormatToc.new(@md,txt_obj)
           toc[:scr]=format_toc.lev3
         end
         toc
@@ -460,7 +460,7 @@ module SiSU_EPUB
       def level_4
         dob=@data
         linkname,ocn=dob.obj.strip,dob.ocn
-        p_num=SiSU_EPUB_Format::ParagraphNumber.new(@md,ocn) if ocn
+        p_num=SiSU_XHTML_EPUB2_Format::ParagraphNumber.new(@md,ocn) if ocn
         if dob.ln==4
           seg_link=%{  <a href="#{dob.name}#{Sfx[:epub_xhtml]}">
     #{dob.obj}
@@ -471,14 +471,14 @@ module SiSU_EPUB
             %{<a href="\\1#{Sfx[:epub_xhtml]}">} +
             %{\\1 \\2</a> })
         end
-        p_num=SiSU_EPUB_Format::ParagraphNumber.new(@md,ocn) if ocn
+        p_num=SiSU_XHTML_EPUB2_Format::ParagraphNumber.new(@md,ocn) if ocn
         txt_obj={ txt: seg_link }
-        format_toc=SiSU_EPUB_Format::FormatToc.new(@md,txt_obj)
+        format_toc=SiSU_XHTML_EPUB2_Format::FormatToc.new(@md,txt_obj)
         toc={}
         toc[:seg]=format_toc.lev4
         title=%{#{p_num.goto}#{linkname}</a>} if p_num
         txt_obj={ txt: title }
-        format_toc=SiSU_EPUB_Format::FormatToc.new(@md,txt_obj)
+        format_toc=SiSU_XHTML_EPUB2_Format::FormatToc.new(@md,txt_obj)
         toc[:scr]=format_toc.lev4
         toc
       end
@@ -488,16 +488,16 @@ module SiSU_EPUB
         toc={}
         if ocn \
         and ocn !~/#/
-          p_num=SiSU_EPUB_Format::ParagraphNumber.new(@md,ocn)
+          p_num=SiSU_XHTML_EPUB2_Format::ParagraphNumber.new(@md,ocn)
           lnk_n_txt=%{  <a href="#{@@seg_url}#{Sfx[:epub_xhtml]}#o#{ocn}">
     #{linkname}
   </a>}
           txt_obj={ txt: lnk_n_txt }
-          format_toc=SiSU_EPUB_Format::FormatToc.new(@md,txt_obj)
+          format_toc=SiSU_XHTML_EPUB2_Format::FormatToc.new(@md,txt_obj)
           toc[:seg]=format_toc.lev5
           title=%{#{p_num.goto}#{linkname}</a>}
           txt_obj={ txt: title }
-          format_toc=SiSU_EPUB_Format::FormatToc.new(@md,txt_obj)
+          format_toc=SiSU_XHTML_EPUB2_Format::FormatToc.new(@md,txt_obj)
           toc[:scr]=format_toc.lev5
         end
         toc
@@ -508,16 +508,16 @@ module SiSU_EPUB
         toc={}
         if ocn \
         and ocn !~/#/
-          p_num=SiSU_EPUB_Format::ParagraphNumber.new(@md,ocn)
+          p_num=SiSU_XHTML_EPUB2_Format::ParagraphNumber.new(@md,ocn)
           lnk_n_txt=%{  <a href="#{@@seg_url}#{Sfx[:epub_xhtml]}#o#{ocn}">
   #{linkname}
 </a>}
           txt_obj={ txt: lnk_n_txt }
-          format_toc=SiSU_EPUB_Format::FormatToc.new(@md,txt_obj)
+          format_toc=SiSU_XHTML_EPUB2_Format::FormatToc.new(@md,txt_obj)
           toc[:seg]=format_toc.lev6
           title=%{#{p_num.goto}#{linkname}</a>}
           txt_obj={ txt: title }
-          format_toc=SiSU_EPUB_Format::FormatToc.new(@md,txt_obj)
+          format_toc=SiSU_XHTML_EPUB2_Format::FormatToc.new(@md,txt_obj)
           toc[:scr]=format_toc.lev6
         end
         toc
@@ -536,7 +536,7 @@ module SiSU_EPUB
         || @md.opt.act[:maintenance][:set]==:on)
           SiSU_Screen::Ansi.new(@md.opt.act[:color_state][:set],'Scroll & Segtoc').txt_grey
         end
-        format_head_toc=SiSU_EPUB_Format::HeadToc.new(@md)
+        format_head_toc=SiSU_XHTML_EPUB2_Format::HeadToc.new(@md)
         dochead=format_head_toc.head
         dochead=dochead.gsub(/toc\.(html)/,'doc.\1') #kludge
         toc_shared << dochead #<< ads.div.major
@@ -544,18 +544,18 @@ module SiSU_EPUB
         if defined? @md.rights.all \
         and @md.rights.all
           rights=format_head_toc.rights.all
-          rights=SiSU_EPUB_Tune::CleanXHTML.new(rights).clean
+          rights=SiSU_XHTML_EPUB2_Tune::CleanXHTML.new(rights).clean
         end
         if defined? @md.notes.prefix_b \
         and @md.notes.prefix_b
           prefix_b=format_head_toc.prefix_b
-          prefix_b=SiSU_EPUB_Tune::CleanXHTML.new(prefix_b).clean
+          prefix_b=SiSU_XHTML_EPUB2_Tune::CleanXHTML.new(prefix_b).clean
         end
         tmp_head=nil
         doc_title_endnote=@md.title.full.gsub(/(\*+)/,'<sup><a href="#endnotes">\1</a></sup>')
         tmp_head=doc_title_endnote + "\n"
         txt_obj={ txt: tmp_head }
-        format_txt_obj=SiSU_EPUB_Format::FormatTextObject.new(@md,txt_obj)
+        format_txt_obj=SiSU_XHTML_EPUB2_Format::FormatTextObject.new(@md,txt_obj)
         toc_shared << format_txt_obj.center_bold
         segtoc << format_txt_obj.center_bold
         if defined? @md.creator.author \
@@ -563,7 +563,7 @@ module SiSU_EPUB
           creator_endnote=@md.creator.author.gsub(/(\*+)/,%{#{$ep[:hsp]}<sup><a href="#notes">\\1</a></sup>})
           tmp_head=creator_endnote + "\n"
           txt_obj={ txt: tmp_head }
-          format_txt_obj=SiSU_EPUB_Format::FormatTextObject.new(@md,txt_obj)
+          format_txt_obj=SiSU_XHTML_EPUB2_Format::FormatTextObject.new(@md,txt_obj)
           toc_shared << format_txt_obj.center_bold
           segtoc << format_txt_obj.center_bold
         end
@@ -599,8 +599,8 @@ module SiSU_EPUB
         #Segtoc tail added here
         segtoc << format_head_toc.xhtml_close
         segtoc=segtoc.flatten.compact #watch
-        SiSU_EPUB::Source::Output.new(@md).make_cover_image
-        SiSU_EPUB::Source::Output.new(@md,segtoc).make_segtoc
+        SiSU_XHTML_EPUB2::Source::Output.new(@md).make_cover_image
+        SiSU_XHTML_EPUB2::Source::Output.new(@md,segtoc).make_segtoc
         segtoc=[]
         @toc[:scr],@toc[:seg]=[],[]
         toc_shared
@@ -608,13 +608,13 @@ module SiSU_EPUB
     end
     class Table < SiSU_XHTML_Table::TableXHTML
     end
-    class Seg < SiSU_EPUB_Seg::Seg
+    class Seg < SiSU_XHTML_EPUB2_Seg::Seg
     end
     class Output
       def initialize(md,output='')
         @md,@output=md,output
         @epub_doc="#{@md.fnb}.epub"
-        @epub_header=SiSU_EPUB_Format::HeadInformation.new(@md)
+        @epub_header=SiSU_XHTML_EPUB2_Format::HeadInformation.new(@md)
         @make=SiSU_Env::ProcessingSettings.new(@md)
         @make_file=SiSU_Env::CreateFile.new(@md.fns)
       end
@@ -638,7 +638,7 @@ module SiSU_EPUB
       end
       def css
         out=@make_file.epub.xhtml_css
-        out << SiSU_EPUB_Format::CSS.new.css_epub_xhtml
+        out << SiSU_XHTML_EPUB2_Format::CSS.new.css_epub_xhtml
         out.close
       end
       def epub_toc_ncx
@@ -691,7 +691,7 @@ module SiSU_EPUB
         end
       end
       def concordance
-        SiSU_EPUB_Concordance::Source.new(@md.opt).read
+        SiSU_XHTML_EPUB2_Concordance::Source.new(@md.opt).read
       end
       def output_zip
         FileUtils::mkdir_p(@md.file.output_path.epub.dir) unless FileTest.directory?(@md.file.output_path.epub.dir)
@@ -728,8 +728,8 @@ module SiSU_EPUB
   <body bgcolor="#ffffff" text="#000000" link="#003090" lang="en" xml:lang="en">
     <div class="svg_outer">
       <div class="svg_inner">
-        <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="100%" height="100%" viewBox="0 0 #{@md.make.cover_image[:w]} #{@md.make.cover_image[:h]}" preserveAspectRatio="xMidYMid meet">
-        <image width="#{@md.make.cover_image[:w]}" height="#{@md.make.cover_image[:h]}" xlink:href="image/#{@md.make.cover_image[:cover]}" />
+        <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xl="http://www.w3.org/1999/xlink" width="100%" height="100%" viewBox="0 0 #{@md.make.cover_image[:w]} #{@md.make.cover_image[:h]}" preserveAspectRatio="xMidYMid meet">
+        <image width="#{@md.make.cover_image[:w]}" height="#{@md.make.cover_image[:h]}" xl:href="image/#{@md.make.cover_image[:cover]}" />
         </svg>
       </div>
     </div>
diff --git a/lib/sisu/v5/epub_concordance.rb b/lib/sisu/v5/xhtml_epub2_concordance.rb
index 628435f2..5668521b 100644
--- a/lib/sisu/v5/epub_concordance.rb
+++ b/lib/sisu/v5/xhtml_epub2_concordance.rb
@@ -60,15 +60,15 @@
     of words in document)
 
 =end
-module SiSU_EPUB_Concordance
+module SiSU_XHTML_EPUB2_Concordance
   require_relative 'particulars'                        # particulars.rb
     include SiSU_Particulars
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env
   require_relative 'defaults'                           # defaults.rb
     include SiSU_Viz
-  require_relative 'epub_format'                        # epub_format.rb
-    include SiSU_EPUB_Format
+  require_relative 'xhtml_epub2_format'                 # xhtml_epub2_format.rb
+    include SiSU_XHTML_EPUB2_Format
   class Source
     def initialize(opt)
       @opt=opt
@@ -80,13 +80,13 @@ module SiSU_EPUB_Concordance
         wordmax=@env.concord_max
         unless @md.wc_words.nil?
           if @md.wc_words < wordmax
-            SiSU_EPUB_Concordance::Source::Words.new(@particulars).songsheet
+            SiSU_XHTML_EPUB2_Concordance::Source::Words.new(@particulars).songsheet
           else
             SiSU_Screen::Ansi.new(@md.opt.act[:color_state][:set],"*WARN* concordance skipped, large document has over #{wordmax} words (#{@md.wc_words})").warn unless @md.opt.act[:quiet][:set]==:on
           end
         else
           SiSU_Screen::Ansi.new(@md.opt.act[:color_state][:set],"*WARN* wc (word count) is off, concordance will be processed for all files including those over the max set size of: #{wordmax} words").warn unless @md.opt.act[:quiet][:set]==:on
-          SiSU_EPUB_Concordance::Source::Words.new(@particulars).songsheet
+          SiSU_XHTML_EPUB2_Concordance::Source::Words.new(@particulars).songsheet
         end
       rescue
         SiSU_Errors::Rescued.new($!,$@,@md.opt.cmd,@md.fns).location do
@@ -98,11 +98,11 @@ module SiSU_EPUB_Concordance
     private
     class DocTitle
       include SiSU_Viz
-      #revisit, both requires (html & shared_xml) needed for stand alone operation (sisu -w [filename])
-      require_relative 'epub'                           # epub.rb
+      #revisit, both requires (html & xml_shared) needed for stand alone operation (sisu -w [filename])
+      require_relative 'xhtml_epub2'                    # xhtml_epub2.rb
       def initialize(particulars)
         @particulars,@md=particulars,particulars.md
-        @data=SiSU_EPUB::Source::XHTML_Environment.new(particulars).tuned_file_instructions
+        @data=SiSU_XHTML_EPUB2::Source::XHTML_Environment.new(particulars).tuned_file_instructions
         @vz=SiSU_Viz::Defaults.new
         @fnb=@md.fnb
         @lex_button=%{<a href="http://www.jus.uio.no/sisu/" target="_top"><img border="0" height="44" width="144" valign="center" src="../_sisu/image/sisu.png" alt="SiSU home"></a>}
@@ -112,7 +112,7 @@ WOK
       end
       def create
         @css=SiSU_Env::CSS_Stylesheet.new(@particulars.md)
-        format_head_toc=SiSU_EPUB_Format::HeadToc.new(@md)
+        format_head_toc=SiSU_XHTML_EPUB2_Format::HeadToc.new(@md)
         dochead=format_head_toc.head
         <<WOK
 #{dochead}
@@ -148,15 +148,15 @@ WOK
     class Words
       require_relative 'defaults'                       # defaults.rb
         include SiSU_Viz
-      require_relative 'epub_format'                    # epub_format.rb
-        include SiSU_EPUB_Format
+      require_relative 'xhtml_epub2_format'             # xhtml_epub2_format.rb
+        include SiSU_XHTML_EPUB2_Format
       require_relative 'sysenv'                         # sysenv.rb
         include SiSU_Screen
       def initialize(particulars)
         @particulars=particulars
         begin
           @vz=SiSU_Viz::Defaults.new
-          @env,@md,@dal_array=particulars.env,particulars.md,particulars.dal_array
+          @env,@md,@ao_array=particulars.env,particulars.md,particulars.ao_array
           @path="#{@env.processing_path.epub}"
           @freq=Hash.new(0)
           @rxp_lv1=/^#{Mx[:lv_o]}1:/ #fix Mx[:lv_o]
@@ -214,7 +214,7 @@ WOK
       def map_para
         @seg,toy=nil,nil
         @word_map={}
-        @dal_array.each do |line|
+        @ao_array.each do |line|
           if defined? line.ocn
             if (line.is ==:heading \
             || line.is ==:heading_insert) \
@@ -288,7 +288,7 @@ WOK
           end
         end
         seg=''
-        @file_concordance << SiSU_EPUB_Concordance::Source::DocTitle.new(@particulars).create
+        @file_concordance << SiSU_XHTML_EPUB2_Concordance::Source::DocTitle.new(@particulars).create
         alph=%W[A B C D E F G H I J K L M N O P Q R S T U V W X Y Z]
         @file_concordance << '<p>'
         alph.each {|x| @file_concordance << %{<a href="##{x}">#{x}</a>,#{$ep[:hsp]}}}
@@ -306,7 +306,7 @@ WOK
               end
             end
           end
-          keyword=SiSU_EPUB_Concordance::Source::Word.new(word,@freq[word]).html
+          keyword=SiSU_XHTML_EPUB2_Concordance::Source::Word.new(word,@freq[word]).html
           if keyword !~ @rxp_excluded0
             if @word_map[word][0] =~ /\d+/
               @file_concordance << %{#{keyword}#{seg}#{@word_map[word].uniq.compact.join}}
diff --git a/lib/sisu/v5/epub_format.rb b/lib/sisu/v5/xhtml_epub2_format.rb
index 1c57cd20..e53c3bfe 100644
--- a/lib/sisu/v5/epub_format.rb
+++ b/lib/sisu/v5/xhtml_epub2_format.rb
@@ -59,7 +59,7 @@
  ** Description: epub formating, css template
 
 =end
-module SiSU_EPUB_Format
+module SiSU_XHTML_EPUB2_Format
   include SiSU_Viz
   class ParagraphNumber
     def initialize(md,ocn)
@@ -1241,8 +1241,8 @@ module SiSU_EPUB_Format
       # DublinCore 1 - title
       @vz=SiSU_Viz::Defaults.new
       @css=SiSU_Env::CSS_Stylesheet.new(md)
-      @seg_name_xhtml=(SiSU_EPUB::Source::Seg.new.seg_name_xhtml || [])
-      @seg_name_xhtml_tracker=(SiSU_EPUB::Source::Seg.new.seg_name_xhtml_tracker || [])
+      @seg_name_xhtml=(SiSU_XHTML_EPUB2::Source::Seg.new.seg_name_xhtml || [])
+      @seg_name_xhtml_tracker=(SiSU_XHTML_EPUB2::Source::Seg.new.seg_name_xhtml_tracker || [])
       @tocband_scroll,@tocband_segtoc=nil,nil
       @index,@metalink='index','#metadata'
     end
diff --git a/lib/sisu/v5/epub_segments.rb b/lib/sisu/v5/xhtml_epub2_segments.rb
index 16e26855..d16e98e8 100644
--- a/lib/sisu/v5/epub_segments.rb
+++ b/lib/sisu/v5/xhtml_epub2_segments.rb
@@ -59,9 +59,9 @@
  ** Description: epub segment generation, processing
 
 =end
-module SiSU_EPUB_Seg
-  require_relative 'shared_xhtml'                       # shared_xhtml.rb
-  require_relative 'epub'                               # epub.rb
+module SiSU_XHTML_EPUB2_Seg
+  require_relative 'xhtml_shared'                       # xhtml_shared.rb
+  require_relative 'xhtml_epub2'                        # xhtml_epub2.rb
   require_relative 'shared_metadata'                    # shared_metadata.rb
   class Output
     def initialize(md,outputfile,seg,type='')
@@ -74,19 +74,19 @@ module SiSU_EPUB_Seg
         if @type=='endnotes'
           @seg[:headings]=[] #watch
           txt_obj={ txt: 'Endnotes', ocn_display: ''}
-          format_seg=SiSU_EPUB_Format::FormatSeg.new(@md,txt_obj)
+          format_seg=SiSU_XHTML_EPUB2_Format::FormatSeg.new(@md,txt_obj)
           @seg[:headings] << format_seg.title_heading1
           filename_seg << @seg[:heading_endnotes] << @seg[:headings] << %{\n<div class="content">\n} << @seg[:endnote_all] << '</div>'
         elsif @type=='idx'
           @seg[:headings]=[]
-          format_seg=SiSU_EPUB_Format::FormatSeg.new(@md,txt_obj)
+          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>'
         elsif @type=='metadata'
           metadata=SiSU_Metadata::Summary.new(@md).xhtml_display.metadata
           @seg[:headings]=[]
           txt_obj={ txt: 'Metadata', ocn_display: ''}
-          format_seg=SiSU_EPUB_Format::FormatSeg.new(@md,txt_obj)
+          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} << metadata << '</div>'
         elsif @type=='sisu_manifest'
@@ -101,7 +101,7 @@ WOK
           end
           @seg[:headings]=[]
           txt_obj={ txt: 'Manifest', ocn_display: ''}
-          format_seg=SiSU_EPUB_Format::FormatSeg.new(@md,txt_obj)
+          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} << manifest << '</div>'
         else
@@ -141,7 +141,7 @@ WOK
       begin
         data=get_subtoc_endnotes(@data)
         data=articles(data)
-        SiSU_EPUB_Seg::Seg.new.cleanup # (((( added ))))
+        SiSU_XHTML_EPUB2_Seg::Seg.new.cleanup # (((( added ))))
         #### (((( END )))) ####
       rescue
         SiSU_Errors::Rescued.new($!,$@,@md.opt.cmd,@md.fns).location do
@@ -236,32 +236,32 @@ WOK
             || dob.is==:heading_insert) \
             and dob.ln==4
               if tracking != 0
-                SiSU_EPUB_Seg::Seg.new(@md).tail
+                SiSU_XHTML_EPUB2_Seg::Seg.new(@md).tail
                 segfilename="#{dir_epub_cont}/#{@@seg_name_xhtml[tracking-1]}#{Sfx[:epub_xhtml]}"
                 output_epub_cont_seg=File.new(segfilename,'w') if @@seg_name_xhtml[tracking-1]
                 if dob.is==:heading \
                 or @@seg_name_xhtml[tracking-1] !~/endnotes|book_index|metadata/
-                  SiSU_EPUB_Seg::Output.new(@md,output_epub_cont_seg,@@seg).output
+                  SiSU_XHTML_EPUB2_Seg::Output.new(@md,output_epub_cont_seg,@@seg).output
                 elsif dob.is==:heading_insert
                   if @@seg_name_xhtml[tracking-1]=='endnotes'
-                    SiSU_EPUB_Seg::Output.new(@md,output_epub_cont_seg,@@seg,'endnotes').output
+                    SiSU_XHTML_EPUB2_Seg::Output.new(@md,output_epub_cont_seg,@@seg,'endnotes').output
                   elsif @@seg_name_xhtml[tracking-1]=='book_index'
-                    SiSU_EPUB_Seg::Output.new(@md,output_epub_cont_seg,@@seg,'idx').output
+                    SiSU_XHTML_EPUB2_Seg::Output.new(@md,output_epub_cont_seg,@@seg,'idx').output
                     @@seg[:idx]=[]
                   elsif @@seg_name_xhtml[tracking-1]=='metadata' # navigation bug FIX
-                    SiSU_EPUB_Seg::Output.new(@md,output_epub_cont_seg,@@seg,'metadata').output
+                    SiSU_XHTML_EPUB2_Seg::Output.new(@md,output_epub_cont_seg,@@seg,'metadata').output
                   else puts "#{__FILE__}::#{__LINE__}"
                   end
                 else puts "#{__FILE__}::#{__LINE__}"
                 end
-                SiSU_EPUB_Seg::Seg.new.reinitialise
+                SiSU_XHTML_EPUB2_Seg::Seg.new.reinitialise
                 heading_art(dob)
                 head(dob)
                 if @@seg_name_xhtml[tracking] =='metadata'
                   segfilename="#{dir_epub_cont}/#{@@seg_name_xhtml[tracking]}#{Sfx[:epub_xhtml]}"
                   output_epub_cont_seg=File.new(segfilename,'w')
-                  SiSU_EPUB_Seg::Output.new(@md,output_epub_cont_seg,@@seg,'metadata').output
-                  SiSU_EPUB_Seg::Seg.new.reinitialise #BUG navigation bug with items following metadata, and occurring before manifest, this becomes a bug ... work area for book index, FIX
+                  SiSU_XHTML_EPUB2_Seg::Output.new(@md,output_epub_cont_seg,@@seg,'metadata').output
+                  SiSU_XHTML_EPUB2_Seg::Seg.new.reinitialise #BUG navigation bug with items following metadata, and occurring before manifest, this becomes a bug ... work area for book index, FIX
                 end
                #@output_epub_cont_seg.close                                         #%(((( EOF )))) -->
               end
@@ -296,7 +296,7 @@ WOK
       data
     end
     def heading_art(dob)
-      @@seg[:title]=SiSU_EPUB_Format::HeadSeg.new(@md).head
+      @@seg[:title]=SiSU_XHTML_EPUB2_Format::HeadSeg.new(@md).head
     end
     def head(dob)
       clean=/<!.*?!>|<:.*?>$/
@@ -309,9 +309,9 @@ WOK
         ocn=(@@heading1[/.+?#{Mx[:id_o]}~(\d+);(?:[oh]|[0-6]:)\d+;\w\d+#{Mx[:id_c]}#{Mx[:id_o]}#{@dp}:#{@dp}#{Mx[:id_c]}$/]) \
         ? $1
         : ''
-        @p_num=SiSU_EPUB_Format::ParagraphNumber.new(@md,ocn)
+        @p_num=SiSU_XHTML_EPUB2_Format::ParagraphNumber.new(@md,ocn)
         txt_obj={ txt: @@heading1, ocn_display: @p_num.ocn_display }
-        format_seg=SiSU_EPUB_Format::FormatSeg.new(@md,txt_obj)
+        format_seg=SiSU_XHTML_EPUB2_Format::FormatSeg.new(@md,txt_obj)
         @@seg[:headings] << format_seg.title_heading1.gsub(clean,'')
         @@heading1=@@heading1.gsub(/#{$ep[:hsp]}<a name="-[\d*+]+" href="#_[\d*+]+">#{$ep[:hsp]}<sup>[\d*+]+<\/sup>#{$ep[:hsp]}<\/a>/,'')
       end
@@ -320,9 +320,9 @@ WOK
         ocn=(heading2[/.+?#{Mx[:id_o]}~(\d+);(?:[oh]|[0-6]:)\d+;\w\d+#{Mx[:id_c]}#{Mx[:id_o]}#{@dp}:#{@dp}#{Mx[:id_c]}$/]) \
         ? $1
         : ''
-        @p_num=SiSU_EPUB_Format::ParagraphNumber.new(@md,ocn)
+        @p_num=SiSU_XHTML_EPUB2_Format::ParagraphNumber.new(@md,ocn)
         txt_obj={ txt: heading2, ocn_display: @p_num.ocn_display }
-        format_seg=SiSU_EPUB_Format::FormatSeg.new(@md,txt_obj)
+        format_seg=SiSU_XHTML_EPUB2_Format::FormatSeg.new(@md,txt_obj)
         @@seg[:headings] << format_seg.title_heading2.gsub(clean,'')
         @@heading2=@@heading2.gsub(/#{$ep[:hsp]}<a name="-[\d*+]+" href="#_[\d*+]+">#{$ep[:hsp]}<sup>[\d*+]+<\/sup>#{$ep[:hsp]}<\/a>/,'')
       end
@@ -331,9 +331,9 @@ WOK
         ocn=(heading3[/.+?#{Mx[:id_o]}~(\d+);(?:[oh]|[0-6]:)\d+;\w\d+#{Mx[:id_c]}#{Mx[:id_o]}#{@dp}:#{@dp}#{Mx[:id_c]}$/]) \
         ? $1
         : ''
-        @p_num=SiSU_EPUB_Format::ParagraphNumber.new(@md,ocn)
+        @p_num=SiSU_XHTML_EPUB2_Format::ParagraphNumber.new(@md,ocn)
         txt_obj={ txt: heading3, ocn_display: @p_num.ocn_display }
-        format_seg=SiSU_EPUB_Format::FormatSeg.new(@md,txt_obj)
+        format_seg=SiSU_XHTML_EPUB2_Format::FormatSeg.new(@md,txt_obj)
         @@seg[:headings] << format_seg.title_heading3.gsub(clean,'')
         @@heading3=@@heading3.gsub(/#{$ep[:hsp]}<a name="-[\d*+]+" href="#_[\d*+]+">#{$ep[:hsp]}<sup>[\d*+]+<\/sup>#{$ep[:hsp]}<\/a>/,'')
       end
@@ -342,9 +342,9 @@ WOK
         ocn=(heading4[/.+?#{Mx[:id_o]}~(\d+);(?:[oh]|[0-6]:)\d+;\w\d+#{Mx[:id_c]}#{Mx[:id_o]}#{@dp}:#{@dp}#{Mx[:id_c]}$/]) \
         ? $1
         : ''
-        @p_num=SiSU_EPUB_Format::ParagraphNumber.new(@md,ocn)
+        @p_num=SiSU_XHTML_EPUB2_Format::ParagraphNumber.new(@md,ocn)
         txt_obj={ txt: heading4, ocn_display: @p_num.ocn_display }
-        format_seg=SiSU_EPUB_Format::FormatSeg.new(@md,txt_obj)
+        format_seg=SiSU_XHTML_EPUB2_Format::FormatSeg.new(@md,txt_obj)
         @@seg[:headings] << format_seg.title_heading4.gsub(clean,'')
       end
       @@tracker=@@tracker+1
@@ -355,9 +355,9 @@ WOK
       || dob.is ==:heading_insert \
       || dob.is ==:para
         #extend as necessary FIX
-        @p_num=SiSU_EPUB_Format::ParagraphNumber.new(@md,dob.ocn)
+        @p_num=SiSU_XHTML_EPUB2_Format::ParagraphNumber.new(@md,dob.ocn)
       end
-      sto=SiSU_EPUB_Format::FormatTextObject.new(@md,dob)
+      sto=SiSU_XHTML_EPUB2_Format::FormatTextObject.new(@md,dob)
       dob_xhtml=if dob.is==:heading \
       || dob.is==:heading_insert \
       || dob.is==:para
@@ -408,13 +408,13 @@ WOK
       || dob.is==:heading_insert \
       || dob.is==:para) \
       && (not dob.ocn or dob.ocn.to_s.empty?)
-        format_seg=SiSU_EPUB_Format::FormatSeg.new(@md,dob)
+        format_seg=SiSU_XHTML_EPUB2_Format::FormatSeg.new(@md,dob)
       end
       if (dob.is==:heading \
       || dob.is==:heading_insert \
       || dob.is==:para) \
       and dob.note_ #dob.obj =~/<a href="#note_ref\d+">&nbsp;<sup id=/                #endnote- note-
-        format_seg=SiSU_EPUB_Format::FormatSeg.new(@md,dob)
+        format_seg=SiSU_XHTML_EPUB2_Format::FormatSeg.new(@md,dob)
         dob.obj=format_seg.no_paranum
       end
       if (dob.is==:heading \
@@ -430,7 +430,7 @@ WOK
       end
     end
     def tail
-      format_head_seg=SiSU_EPUB_Format::HeadSeg.new(@md)
+      format_head_seg=SiSU_XHTML_EPUB2_Format::HeadSeg.new(@md)
       if @md.flag_auto_endnotes \
       and @@seg_endnotes[@@get_hash_fn]
         @@seg[:tail] <<  %{\n<div class="content">\n<div class="endnote">\n}
@@ -486,10 +486,10 @@ WOK
         and dob.ln.to_s =~/^[56]/
           case dob.ln
           when 5
-            format_seg=SiSU_EPUB_Format::FormatSeg.new(@md,dob)
+            format_seg=SiSU_XHTML_EPUB2_Format::FormatSeg.new(@md,dob)
             subtoc=format_seg.subtoc_lev5 #keep and make available, this is the subtoc
           when 6
-            format_seg=SiSU_EPUB_Format::FormatSeg.new(@md,dob)
+            format_seg=SiSU_XHTML_EPUB2_Format::FormatSeg.new(@md,dob)
             subtoc=format_seg.subtoc_lev6 #keep and make available, this is the subtoc
           end
           @@seg_subtoc_array << subtoc
@@ -516,7 +516,7 @@ WOK
               try=e_n.split(/<br \/>/)
               try.each do |e|
                 txt_obj={ txt: e }
-                format_seg=SiSU_EPUB_Format::FormatSeg.new(@md,txt_obj)
+                format_seg=SiSU_XHTML_EPUB2_Format::FormatSeg.new(@md,txt_obj)
                 note_match=if e =~/#{Mx[:pa_o]}i[1-9]#{Mx[:pa_c]}/
                   format_seg.endnote_body_indent
                 else format_seg.endnote_body
@@ -529,7 +529,7 @@ WOK
               endnote_part_a=note_match_seg[m,1]
               endnote_part_b=note_match_seg[m,2]
               txt_obj={ endnote_part_a: endnote_part_a, endnote_part_b: endnote_part_b }
-              format_seg=SiSU_EPUB_Format::FormatSeg.new(@md,txt_obj)
+              format_seg=SiSU_XHTML_EPUB2_Format::FormatSeg.new(@md,txt_obj)
               note_match_all_seg=format_seg.endnote_seg_body(@@fn) #BUG WATCH 200408
               @@seg[:endnote_all] << note_match_all_seg
             end
diff --git a/lib/sisu/v5/epub_tune.rb b/lib/sisu/v5/xhtml_epub2_tune.rb
index 5ec5fa56..b46f49f0 100644
--- a/lib/sisu/v5/epub_tune.rb
+++ b/lib/sisu/v5/xhtml_epub2_tune.rb
@@ -60,10 +60,10 @@
 
 =end
 require_relative 'param'
-module SiSU_EPUB_Tune
+module SiSU_XHTML_EPUB2_Tune
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env; include SiSU_Screen
-  require_relative 'epub_format'                        # epub_format.rb #watch
+  require_relative 'xhtml_epub2_format'                 # xhtml_epub2_format.rb #watch
   @@line_mode=''
   @@endnote_array=[]
   @@endnote_call_counter=1
@@ -127,15 +127,15 @@ module SiSU_EPUB_Tune
         || @md.opt.act[:maintenance][:set]==:on)
           SiSU_Screen::Ansi.new(@md.opt.act[:color_state][:set],'Tune').txt_grey
         end
-        data=SiSU_EPUB_Tune::Tune.new(@data,@md).amp_angle_brackets
-        data=SiSU_EPUB_Tune::Tune.new(data,@md).endnotes_html
-        data=SiSU_EPUB_Tune::Tune.new(data,@md).url_markup
-        data=SiSU_EPUB_Tune::Tune.new(data,@md).markup
+        data=SiSU_XHTML_EPUB2_Tune::Tune.new(@data,@md).amp_angle_brackets
+        data=SiSU_XHTML_EPUB2_Tune::Tune.new(data,@md).endnotes_html
+        data=SiSU_XHTML_EPUB2_Tune::Tune.new(data,@md).url_markup
+        data=SiSU_XHTML_EPUB2_Tune::Tune.new(data,@md).markup
         if @md.opt.act[:maintenance][:set]==:on #Hard Output Tune Optional on/off here
-          data=SiSU_EPUB_Tune::Output.new(data,@md).hard_output
-          SiSU_EPUB_Tune::Output.new(data,@md).marshal
+          data=SiSU_XHTML_EPUB2_Tune::Output.new(data,@md).hard_output
+          SiSU_XHTML_EPUB2_Tune::Output.new(data,@md).marshal
         end
-        SiSU_EPUB_Tune::Tune.new(@data,@md).output
+        SiSU_XHTML_EPUB2_Tune::Tune.new(@data,@md).output
       rescue
         SiSU_Errors::Rescued.new($!,$@,@md.opt.cmd,@md.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -163,7 +163,7 @@ module SiSU_EPUB_Tune
           gsub(/#{Dx[:url_o]}/,Dx[:url_o_xml]).gsub(/#{Dx[:url_c]}/,Dx[:url_o_xml]).
           gsub(/#{Mx[:nbsp]}/,$ep[:hsp]).
           gsub(/<(p|br)>/,'<\1 />')
-        dob.obj=SiSU_EPUB_Tune::CleanXHTML.new(dob.obj).clean
+        dob.obj=SiSU_XHTML_EPUB2_Tune::CleanXHTML.new(dob.obj).clean
         @tuned_file << dob
       end
     end
diff --git a/lib/sisu/v5/shared_xhtml.rb b/lib/sisu/v5/xhtml_shared.rb
index c9534823..27ddba4b 100644
--- a/lib/sisu/v5/shared_xhtml.rb
+++ b/lib/sisu/v5/xhtml_shared.rb
@@ -50,7 +50,7 @@
 
  * 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/shared_xhtml.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/xhtml_shared.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
diff --git a/lib/sisu/v5/xml_docbook5.rb b/lib/sisu/v5/xml_docbook5.rb
new file mode 100644
index 00000000..d3840d18
--- /dev/null
+++ b/lib/sisu/v5/xml_docbook5.rb
@@ -0,0 +1,271 @@
+# encoding: utf-8
+=begin
+
+ * Name: SiSU
+
+ * Description: a framework for document structuring, publishing and search
+
+ * Author: Ralph Amissah
+
+ * Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+   2007, 2008, 2009, 2010, 2011, 2012, 2013 Ralph Amissah, All Rights Reserved.
+
+ * License: GPL 3 or later:
+
+   SiSU, a framework for document structuring, publishing and search
+
+   Copyright (C) Ralph Amissah
+
+   This program is free software: you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by the Free
+   Software Foundation, either version 3 of the License, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful, but WITHOUT
+   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+   FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+   more details.
+
+   You should have received a copy of the GNU General Public License along with
+   this program. If not, see <http://www.gnu.org/licenses/>.
+
+   If you have Internet connection, the latest version of the GPL should be
+   available at these locations:
+   <http://www.fsf.org/licensing/licenses/gpl.html>
+   <http://www.gnu.org/licenses/gpl.html>
+
+   <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+ * SiSU uses:
+   * Standard SiSU markup syntax,
+   * Standard SiSU meta-markup syntax, and the
+   * Standard SiSU object citation numbering and system
+
+ * Hompages:
+   <http://www.jus.uio.no/sisu>
+   <http://www.sisudoc.org>
+
+ * Download:
+   <http://www.sisudoc.org/sisu/en/SiSU/download.html>
+
+ * 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/xml_docbook_book.rb;hb=HEAD>
+
+ * Ralph Amissah
+   <ralph@amissah.com>
+   <ralph.amissah@gmail.com>
+
+ ** Description: Docbook book XML rendition
+
+=end
+module SiSU_XML_Docbook_Book
+  require_relative 'particulars'                        # particulars.rb
+    include SiSU_Particulars
+  require_relative 'ao'                                 # ao.rb
+  require_relative 'sysenv'                             # sysenv.rb
+    include SiSU_Env
+  require_relative 'txt_shared'                         # txt_shared.rb
+    include SiSU_TextUtils
+  require_relative 'xml_shared'                         # xml_shared.rb
+    include SiSU_XML_Munge
+  class Source
+    def initialize(opt)
+      @opt=opt
+      @particulars=SiSU_Particulars::CombinedSingleton.instance.get_all(opt)
+    end
+    def read
+      begin
+        @md,@ao_array=@particulars.md,@particulars.ao_array
+        @env=@particulars.env
+        report
+        SiSU_XML_Docbook_Book::Source::Scroll.new(@ao_array,@md).songsheet
+      rescue
+        SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
+          __LINE__.to_s + ':' + __FILE__
+        end
+      ensure
+      end
+    end
+    private
+    def report
+      unless @opt.act[:quiet][:set]==:on
+        tool=(@opt.act[:verbose][:set]==:on \
+        || @opt.act[:verbose_plus][:set]==:on \
+        || @opt.act[:maintenance][:set]==:on) \
+        ? "#{@env.program.docbook_viewer} #{@md.file.output_path.xml_docbook_book.dir}/#{@md.file.base_filename.xml_docbook_book}"
+        : "[#{@opt.f_pth[:lng_is]}] #{@opt.fno}"
+        (@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],'DocBook',tool).green_hi_blue
+        : SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'DocBook',tool).green_title_hi
+        if (@opt.act[:verbose_plus][:set]==:on \
+        || @opt.act[:maintenance][:set]==:on)
+          SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],@opt.fns,"#{@md.file.output_path.xml_docbook_book.dir}/#{@md.file.base_filename.xml_docbook_book}").flow
+        end
+      end
+    end
+    class Scroll <Source
+      def initialize(data='',md='')
+        @data,@md=data,md
+        @trans=SiSU_XML_Munge::Trans.new(@md)
+        @particulars=SiSU_Particulars::CombinedSingleton.instance.get_all(md.opt)
+        @env=@particulars.env
+      end
+      def songsheet
+        @t='sisu'
+        data=@data
+        if @md.opt.act[:verbose_plus][:set]==:on
+          structure_collapsed(data)
+        end
+        #head
+        #extract_endnotes
+        data=markup_text(data)
+        structure_build_collapsed(data)
+        #tail
+      end
+      def space
+        '  '
+      end
+      def tags
+        # collapsed -->
+        def collapsed
+          %w[ 0 1 2 3 4 5 6 ]
+        end
+        def docbook(lc,chlv='')
+          case lc
+          when 1
+            'book'
+          when 2
+            lc==chlv ? 'chapter' : 'section'
+          when 3
+            lc==chlv ? 'chapter' : 'section'
+          when 4
+            lc==chlv ? 'chapter' : 'section'
+          when 5
+            'section'
+          when 6
+            'section'
+          end
+        end
+        self
+      end
+      def put(line)
+        #@file_docbook.puts line                           #look into and use perhaps
+        puts line if @md.opt.act[:verbose_plus][:set]==:on
+      end
+      def head
+        <<-WOK
+<?xml version="1.0" encoding="utf-8"?>
+<book xmlns="http://docbook.org/ns/docbook"
+  xmlns:xl="http://www.w3.org/1999/xlink"
+  version="5.0">
+        WOK
+      end
+      def markup_text(data)
+        data.each_with_index do |o,i|
+          if o.is ==:heading || o.is ==:para
+            o=@trans.markup_docbook(o) #unless o.obj==nil
+          end
+        end
+        data
+      end
+      def tail
+        tail=<<-WOK
+</book>
+        WOK
+        put(tail)
+      end
+      def output(o,lev=nil,comment='')
+         puts lev == 0..6 \
+         ? "#{space*lev}<#{lev}>[#{o.ocn}] #{o.ln} #{o.obj}</#{lev}>#{comment}"
+         : "<#{lev}>[#{o.ocn}] #{o.ln} #{o.obj}</#{lev}>#{comment}"
+      end
+      def structure_collapsed(data)
+        puts "\ncollapsed structure, heading outline --->\n\n"
+        data.each_with_index do |o,i|
+          if  (o.is ==:heading || o.is ==:heading_insert)
+            output(o,o.lc)
+          end
+        end
+      end
+      #def chapterlevel
+      #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)
+        filename_docbook=file.write_file.xml_docbook_book
+        h=0
+        @chlv=chlv=0
+        doc_position=:head
+        filename_docbook.puts head
+        data.each_with_index do |o,i|
+          if (defined? o.ocn and not o.ocn.nil?)
+            ocn="\n#{Dx[:ocn_o]}#{o.ocn}#{Dx[:ocn_c]}"
+            id=%{ id="o#{o.ocn}" }
+          else
+            ocn,id='',''
+          end
+          if  (o.is ==:heading || o.is ==:heading_insert)
+            lev=o.lc
+            chlv=(o.lv.to_i == 1) \
+            ? @chlv=o.lc.to_i
+            : 0
+            @splv=lev
+            unless doc_position==:head
+              filename_docbook.puts structure_build_tag_close(lev,h)
+            end
+            doc_position=:body_and_tail
+            filename_docbook.puts  %{#{space*(lev-1)}<#{tags.docbook(lev,chlv)}>
+#{space*lev}<title#{id}>
+}
+            filename_docbook.puts SiSU_TextUtils::Wrap.new(o.obj + ocn,80,(@splv*2+2)).line_wrap
+            filename_docbook.puts %{#{space*lev}</title>}
+            h=lev
+          elsif (o.of ==:para or o.of ==:block)
+            filename_docbook.puts "#{space*(@splv)}<para#{id}>"
+            filename_docbook.puts SiSU_TextUtils::Wrap.new(o.obj + ocn,80,(@splv*2+2)).line_wrap
+            filename_docbook.puts "#{space*(@splv)}</para>"
+          end
+        end
+        filename_docbook.puts structure_build_tag_close(0,h)
+        filename_docbook.close
+      end
+      def structure_build_tag_close(lev,h)
+        x=[]
+        case h
+        when 1
+          x << "#{space*0}</#{tags.docbook(1)}>"       if (lev <= 1)
+        when 2
+          x << "#{space*1}</#{tags.docbook(2,@chlv)}>" if (lev <= 2)
+          x << "#{space*0}</#{tags.docbook(1)}>"       if (lev <= 1)
+        when 3
+          x << "#{space*2}</#{tags.docbook(3,@chlv)}>" if (lev <= 3)
+          x << "#{space*1}</#{tags.docbook(2,@chlv)}>" if (lev <= 2)
+          x << "#{space*0}</#{tags.docbook(1)}>"       if (lev <= 1)
+        when 4
+          x << "#{space*3}</#{tags.docbook(4,@chlv)}>" if (lev <= 4)
+          x << "#{space*2}</#{tags.docbook(3,@chlv)}>" if (lev <= 3)
+          x << "#{space*1}</#{tags.docbook(2,@chlv)}>" if (lev <= 2)
+          x << "#{space*0}</#{tags.docbook(1)}>"       if (lev <= 1)
+        when 5
+          x << "#{space*4}</#{tags.docbook(5)}>"       if (lev <= 5)
+          x << "#{space*3}</#{tags.docbook(4,@chlv)}>" if (lev <= 4)
+          x << "#{space*2}</#{tags.docbook(3,@chlv)}>" if (lev <= 3)
+          x << "#{space*1}</#{tags.docbook(2,@chlv)}>" if (lev <= 2)
+          x << "#{space*0}</#{tags.docbook(1)}>"       if (lev <= 1)
+        when 6
+          x << "#{space*5}</#{tags.docbook(6)}>"       if (lev <= 6)
+          x << "#{space*4}</#{tags.docbook(5)}>"       if (lev <= 5)
+          x << "#{space*3}</#{tags.docbook(4,@chlv)}>" if (lev <= 4)
+          x << "#{space*2}</#{tags.docbook(3,@chlv)}>" if (lev <= 3)
+          x << "#{space*1}</#{tags.docbook(2,@chlv)}>" if (lev <= 2)
+          x << "#{space*0}</#{tags.docbook(1)}>"       if (lev <= 1)
+        end
+        x.join("\n")
+      end
+    end
+  end
+end
+__END__
diff --git a/lib/sisu/v5/xml_dom.rb b/lib/sisu/v5/xml_dom.rb
index f6d86883..6f0391f1 100644
--- a/lib/sisu/v5/xml_dom.rb
+++ b/lib/sisu/v5/xml_dom.rb
@@ -66,8 +66,8 @@ module SiSU_XML_DOM
     include SiSU_Particulars
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env
-  require_relative 'dal'                                # dal.rb
-  require_relative 'shared_xml'                         # shared_xml.rb
+  require_relative 'ao'                                 # ao.rb
+  require_relative 'xml_shared'                         # xml_shared.rb
     include SiSU_XML_Munge
   require_relative 'xml_format'                         # xml_format.rb
     include SiSU_XML_Format
@@ -83,7 +83,7 @@ module SiSU_XML_DOM
     end
     def read
       begin
-        @env,@md,@dal_array=@particulars.env,@particulars.md,@particulars.dal_array
+        @env,@md,@ao_array=@particulars.env,@particulars.md,@particulars.ao_array
         unless @opt.act[:quiet][:set]==:on
           tool=if (@opt.act[:verbose_plus][:set]==:on \
           || @opt.act[:maintenance][:set]==:on)
@@ -114,7 +114,7 @@ module SiSU_XML_DOM
     private
     class Songsheet
       def initialize(particulars)
-        @env,@md,@dal_array,@particulars=particulars.env,particulars.md,particulars.dal_array,particulars
+        @env,@md,@ao_array,@particulars=particulars.env,particulars.md,particulars.ao_array,particulars
         @file=SiSU_Env::FileOp.new(@md)
       end
       def songsheet
@@ -135,19 +135,19 @@ module SiSU_XML_DOM
       end
     end
     class Scroll
-      require_relative 'shared_txt'                     # shared_txt.rb
+      require_relative 'txt_shared'                     # txt_shared.rb
         include SiSU_TextUtils
-      require_relative 'shared_xhtml'                   # decide use, whether xml rather than xhtml
+      require_relative 'xhtml_shared'                   # decide use, whether xml rather than xhtml
       @@xml={ body: [], open: [], close: [], head: [], sc: [] }
       def initialize(particulars)
-        @env,@md,@dal_array=particulars.env,particulars.md,particulars.dal_array
+        @env,@md,@ao_array=particulars.env,particulars.md,particulars.ao_array
         @vz=SiSU_Viz::Defaults.new
         @trans=SiSU_XML_Munge::Trans.new(@md)
         @sys=SiSU_Env::SystemCall.new
       end
       def songsheet
         pre
-        @data=markup(@dal_array)
+        @data=markup(@ao_array)
         post
         publish
       end
diff --git a/lib/sisu/v5/xml_fictionbook.rb b/lib/sisu/v5/xml_fictionbook.rb
deleted file mode 100644
index 446e12e2..00000000
--- a/lib/sisu/v5/xml_fictionbook.rb
+++ /dev/null
@@ -1,305 +0,0 @@
-# encoding: utf-8
-=begin
-
- * Name: SiSU
-
- * Description: a framework for document structuring, publishing and search
-
- * Author: Ralph Amissah
-
- * Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-   2007, 2008, 2009, 2010, 2011, 2012, 2013 Ralph Amissah, All Rights Reserved.
-
- * License: GPL 3 or later:
-
-   SiSU, a framework for document structuring, publishing and search
-
-   Copyright (C) Ralph Amissah
-
-   This program is free software: you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published by the Free
-   Software Foundation, either version 3 of the License, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful, but WITHOUT
-   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-   FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-   more details.
-
-   You should have received a copy of the GNU General Public License along with
-   this program. If not, see <http://www.gnu.org/licenses/>.
-
-   If you have Internet connection, the latest version of the GPL should be
-   available at these locations:
-   <http://www.fsf.org/licensing/licenses/gpl.html>
-   <http://www.gnu.org/licenses/gpl.html>
-
-   <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
-
- * SiSU uses:
-   * Standard SiSU markup syntax,
-   * Standard SiSU meta-markup syntax, and the
-   * Standard SiSU object citation numbering and system
-
- * Hompages:
-   <http://www.jus.uio.no/sisu>
-   <http://www.sisudoc.org>
-
- * Download:
-   <http://www.sisudoc.org/sisu/en/SiSU/download.html>
-
- * 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/xml_fictionbook.rb;hb=HEAD>
-
- * Ralph Amissah
-   <ralph@amissah.com>
-   <ralph.amissah@gmail.com>
-
- ** Description: extract and print an XML rendition of document structure to screen
-
-=end
-module SiSU_XML_Fictionbook
-  require_relative 'dal'                                # dal.rb
-  require_relative 'sysenv'                             # sysenv.rb
-    include SiSU_Env
-  require_relative 'shared_txt'                         # shared_txt.rb
-    include SiSU_TextUtils
-  require_relative 'shared_xml'                         # shared_xml.rb
-    include SiSU_XML_Munge
-  include SiSU_Param
-  class Source
-    def initialize(opt)
-      @opt=opt
-      @sp='  '
-    end
-    def read
-      begin
-        @md=SiSU_Param::Parameters.new(@opt).get
-        @dal_array=SiSU_DAL::Source.new(@opt).get
-        SiSU_XML_Fictionbook::Source::Scroll.new(@dal_array,@md).songsheet
-      rescue
-        SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
-          __LINE__.to_s + ':' + __FILE__
-        end
-      ensure
-      end
-    end
-    private
-    class Scroll <Source
-      def initialize(data='',md='')
-        @data,@md=data,md
-        @trans=SiSU_XML_Munge::Trans.new(@md)
-        @file_fictionbook=SiSU_Env::FileOp.new(@md,'fictionbook.xml').mkfile
-      end
-      def songsheet
-        @t='fictionbook'
-        @s=['section',          #@s=['body',
-          'section',
-          'section',
-          'section',
-          'section',
-          'section',
-          'section'
-        ]
-        head
-        extract_endnotes
-        structure
-        tail
-      end
-      def head
-        version=SiSU_Env::InfoVersion.instance.get_version
-        rb_ver=SiSU_Env::InfoVersion.instance.rbversion
-        date_available=if defined? @md.date.available; "\n     <p>#{@md.date.available} Initial version</p>"
-        else ''
-        end
-        date_modified=if defined? @md.date.modified; "\n      <p>#{@md.date.modified} Last Modified</p>"
-        else ''
-        end
-        head=<<WOK
-<?xml version="1.0" encoding="UTF-8"?>
-<FictionBook xmlns:xlink="http://www.w3.org/1999/xlink"
- xmlns="http://www.gribuser.ru/xml/fictionbook/2.0">
-<description>
-  <title-info>
-    <genre match="100">***</genre>
-    <author>
-      <first-name>***</first-name>
-      <middle-name>***</middle-name>
-      <last-name>***</last-name>
-    </author>
-    <book-title>#{@md.title.full}</book-title>
-    <annotation>
-    </annotation>
-    <date value="#{@md.date}">yyyy</date>
-  </title-info>
-     <document-info>
-    <author>
-      <first-name/>
-      <last-name/>
-      <nickname/>
-    </author>
-    <program-used>#{version[:project]} #{version[:version]} and #{rb_ver}</program-used>
-    <date value="#{version[:date]}">#{version[:date]}</date>
-    <src-ocr/>
-    <version>1.0</version>
-    <history>#{date_available}#{date_modified}
-    </history>
-  </document-info>
-</description>
-<body>
-WOK
-        put(head)
-      end
-      def extract_endnotes
-        @endnotes=[]
-        @data.each do |para|
-          @endnotes << para.scan(/~\{(.+?)\}~/m)
-        end
-        @endnotes=@endnotes.flatten
-      end
-      def endnotes
-        @endnotes.each do |endnote|
-          endnote=endnote.strip
-          endnote=@trans.markup_fictionbook(endnote)
-          endnote="<p>#{endnote}</p>"
-          util=SiSU_TextUtils::Wrap.new(endnote,80,10)
-          endnote=util.line_wrap
-          put(endnote)
-        end
-      end
-      def tail
-        tail=<<WOK
-</body>
-</FictionBook>
-WOK
-        put(tail)
-      end
-      def markup(para,type='')
-        para=para.strip
-        para=@trans.markup_fictionbook(para)
-        para=if type.empty?; "<p>#{para}</p>"
-        else "<#{type}><p>#{para}</p></#{type}>"
-        end
-        util=SiSU_TextUtils::Wrap.new(para,80,10)
-        util.line_wrap
-      end
-      def put(line)
-        @file_fictionbook.puts line
-        puts line if @md.opt.act[:verbose_plus][:set]==:on
-      end
-      def structure_build_tag_close(lev,h)
-        @sp='  '
-        case h[0]
-        when 1
-          put("#{@sp*1}</#{@s[1]}>") if (lev <= 1) and h[1]
-          put("</#{@s[0]}>")         if (lev==0)
-        when 2
-          put("#{@sp*2}</#{@s[2]}>") if (lev <= 2) and h[2]
-          put("#{@sp*1}</#{@s[1]}>") if (lev <= 1) and h[1]
-          put("</#{@s[0]}>")         if (lev==0)
-        when 3
-          put("#{@sp*3}</#{@s[3]}>") if (lev <= 3) and h[3]
-          put("#{@sp*2}</#{@s[2]}>") if (lev <= 2) and h[2]
-          put("#{@sp*1}</#{@s[1]}>") if (lev <= 1) and h[1]
-          put("</#{@s[0]}>")         if (lev==0)
-        when 4
-          put("#{@sp*4}</#{@s[4]}>") if (lev <= 4)
-          put("#{@sp*3}</#{@s[3]}>") if (lev <= 3) and h[3]
-          put("#{@sp*2}</#{@s[2]}>") if (lev <= 2) and h[2]
-          put("#{@sp*1}</#{@s[1]}>") if (lev <= 1) and h[1]
-          put("</#{@s[0]}>")         if (lev==0)
-        when 5
-          put("#{@sp*5}</#{@s[5]}>") if (lev <= 5)
-          put("#{@sp*4}</#{@s[4]}>") if (lev <= 4)
-          put("#{@sp*3}</#{@s[3]}>") if (lev <= 3) and h[3]
-          put("#{@sp*2}</#{@s[2]}>") if (lev <= 2) and h[2]
-          put("#{@sp*1}</#{@s[1]}>") if (lev <= 1) and h[1]
-          put("</#{@s[0]}>")         if (lev==0)
-        when 6
-          put("#{@sp*6}</#{@s[6]}>") if (lev <= 6)
-          put("#{@sp*5}</#{@s[5]}>") if (lev <= 5)
-          put("#{@sp*4}</#{@s[4]}>") if (lev <= 4)
-          put("#{@sp*3}</#{@s[3]}>") if (lev <= 3) and h[3]
-          put("#{@sp*2}</#{@s[2]}>") if (lev <= 2) and h[2]
-          put("#{@sp*1}</#{@s[1]}>") if (lev <= 1) and h[1]
-          put("</#{@s[0]}>")         if (lev==0)
-        end
-      end
-      def structure_build(ds)
-        @h=[0,false,false,false]
-        put("<#{@s[0]}>")
-        ds.each_with_index do |x,i|
-          @ef=false
-          case x[:lev]
-          when /^1/
-            structure_build_tag_close(1,@h)
-            y="#{@sp*1}<#{@s[1]}>\n#{x[:para]}"
-            @h=[1,true,false,false]
-          when /^2/
-            structure_build_tag_close(2,@h)
-            y="#{@sp*2}<#{@s[2]}>\n#{x[:para]}"
-            @h=[2,true,true,false]
-          when /^0:0/ #endnotes and metadata
-            structure_build_tag_close(2,@h)
-            y="#{@sp*2}<#{@s[2]}>\n#{x[:para]}"
-            @h=[2,true,true,false]
-            @ef=true if x[:hdr] =~/u0/
-          when /^3/
-            structure_build_tag_close(3,@h)
-            y="#{@sp*3}<#{@s[3]}>\n#{x[:para]}"
-            @h=[3,true,true,true]
-          when /^4/
-            structure_build_tag_close(4,@h)
-            y="#{@sp*4}<#{@s[4]}>\n#{x[:para]}"
-            @h[0]=4
-          when /^m2/ #metadata
-            structure_build_tag_close(4,@h)
-            y="#{@sp*4}<#{@s[4]}>\n#{x[:para]}"
-            @h[0]=4
-          when /^5/
-            structure_build_tag_close(5,@h)
-            y="#{@sp*5}<#{@s[5]}>\n#{x[:para]}"
-            @h[0]=5
-          when /^6/
-            structure_build_tag_close(6,@h)
-            y="#{@sp*6}<#{@s[6]}>\n#{x[:para]}"
-            @h[0]=6
-          else
-            y=if @md.opt.act[:verbose_plus][:set]==:on; "#{x[:para]}"
-            else nil
-            end
-          end
-          put(y) if y
-          endnotes if @ef
-        end
-        structure_build_tag_close(0,@h)
-      end
-      def structure
-        data=@data
-        @ds=[]
-        c=0
-        data.each do |para|
-          rgx_headers=/#{Mx[:id_o]}~(\d+);((?:\w|[0-6]:)\d+);(\w\d+)#{Mx[:id_c]}/ #fix
-          if para =~rgx_headers
-            x=(rgx_headers).match(para)
-            if x[3] =~/^[hum]\d+/
-              @ds[c]={}
-              @ds[c][:ocn]=x[1]
-              @ds[c][:lev]=x[2]
-              @ds[c][:hdr]=x[3]
-              @ds[c][:para]=markup(para,'title')
-            else
-              @ds[c]={}
-              @ds[c][:para]=markup(para) if @md.opt.act[:verbose_plus][:set]==:on
-            end
-            c+=1
-          end
-        end
-        structure_build(@ds)
-        @ds
-      end
-    end
-  end
-end
-__END__
diff --git a/lib/sisu/v5/xml_fictionbook2.rb b/lib/sisu/v5/xml_fictionbook2.rb
new file mode 100644
index 00000000..8ee2fb89
--- /dev/null
+++ b/lib/sisu/v5/xml_fictionbook2.rb
@@ -0,0 +1,366 @@
+# encoding: utf-8
+=begin
+
+ * Name: SiSU
+
+ * Description: a framework for document structuring, publishing and search
+
+ * Author: Ralph Amissah
+
+ * Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+   2007, 2008, 2009, 2010, 2011, 2012, 2013 Ralph Amissah, All Rights Reserved.
+
+ * License: GPL 3 or later:
+
+   SiSU, a framework for document structuring, publishing and search
+
+   Copyright (C) Ralph Amissah
+
+   This program is free software: you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by the Free
+   Software Foundation, either version 3 of the License, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful, but WITHOUT
+   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+   FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+   more details.
+
+   You should have received a copy of the GNU General Public License along with
+   this program. If not, see <http://www.gnu.org/licenses/>.
+
+   If you have Internet connection, the latest version of the GPL should be
+   available at these locations:
+   <http://www.fsf.org/licensing/licenses/gpl.html>
+   <http://www.gnu.org/licenses/gpl.html>
+
+   <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+ * SiSU uses:
+   * Standard SiSU markup syntax,
+   * Standard SiSU meta-markup syntax, and the
+   * Standard SiSU object citation numbering and system
+
+ * Hompages:
+   <http://www.jus.uio.no/sisu>
+   <http://www.sisudoc.org>
+
+ * Download:
+   <http://www.sisudoc.org/sisu/en/SiSU/download.html>
+
+ * 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/xml_fictionbook.rb;hb=HEAD>
+
+ * Ralph Amissah
+   <ralph@amissah.com>
+   <ralph.amissah@gmail.com>
+
+ ** Description: Fictionbook XML rendition
+
+=end
+module SiSU_XML_Fictionbook
+  require_relative 'particulars'                        # particulars.rb
+    include SiSU_Particulars
+  require_relative 'ao'                                 # ao.rb
+  require_relative 'sysenv'                             # sysenv.rb
+    include SiSU_Env
+  require_relative 'txt_shared'                         # txt_shared.rb
+    include SiSU_TextUtils
+  require_relative 'xml_shared'                         # xml_shared.rb
+    include SiSU_XML_Munge
+  class Source
+    def initialize(opt)
+      @opt=opt
+      @particulars=SiSU_Particulars::CombinedSingleton.instance.get_all(opt)
+    end
+    def read
+      begin
+        @md,@ao_array=@particulars.md,@particulars.ao_array
+        @env=@particulars.env
+        report
+        SiSU_XML_Fictionbook::Source::Scroll.new(@ao_array,@md).songsheet
+      rescue
+        SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
+          __LINE__.to_s + ':' + __FILE__
+        end
+      ensure
+      end
+    end
+    private
+    def report
+      unless @opt.act[:quiet][:set]==:on
+        tool=(@opt.act[:verbose][:set]==:on \
+        || @opt.act[:verbose_plus][:set]==:on \
+        || @opt.act[:maintenance][:set]==:on) \
+        ? "#{@env.program.fictionbook_viewer} #{@md.file.output_path.xml_fictionbook.dir}/#{@md.file.base_filename.xml_fictionbook}"
+        : "[#{@opt.f_pth[:lng_is]}] #{@opt.fno}"
+        (@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],'Fictionbook',tool).green_hi_blue
+        : SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'Fictionbook',tool).green_title_hi
+        if (@opt.act[:verbose_plus][:set]==:on \
+        || @opt.act[:maintenance][:set]==:on)
+          SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],@opt.fns,"#{@md.file.output_path.xml_fictionbook.dir}/#{@md.file.base_filename.xml_fictionbook}").flow
+        end
+      end
+    end
+    class Scroll <Source
+      def initialize(data='',md='')
+        @data,@md=data,md
+        @trans=SiSU_XML_Munge::Trans.new(@md)
+        @particulars=SiSU_Particulars::CombinedSingleton.instance.get_all(md.opt)
+        @env=@particulars.env
+      end
+      def songsheet
+        @t='sisu'
+        data=@data
+        if @md.opt.act[:verbose_plus][:set]==:on
+          structure_collapsed(data)
+        end
+        head
+        endnotes=extract_endnotes
+        images_base64=extract_images
+        data=markup_text(data)
+        structure_build_collapsed(data,endnotes,images_base64)
+      end
+      def space
+        '  '
+      end
+      def tags
+        # collapsed -->
+        def collapsed
+          %w[ 0 1 2 3 4 5 6 ]
+        end
+        def fictionbook
+          [ 'section',
+            'section',
+            'section',
+            'section',
+            'section',
+            'section',
+            'section'
+          ]
+        end
+        self
+      end
+      def put(line)
+        puts line if @md.opt.act[:verbose_plus][:set]==:on
+      end
+      def head
+        version=SiSU_Env::InfoVersion.instance.get_version
+        rb_ver=SiSU_Env::InfoVersion.instance.rbversion
+        date_available=if defined? @md.date.available; "\n     <p>#{@md.date.available} Initial version</p>"
+        else ''
+        end
+        date_modified=if defined? @md.date.modified; "\n      <p>#{@md.date.modified} Last Modified</p>"
+        else ''
+        end
+        coverpageimage=if defined? @md.make.cover_image[:cover]
+          %{\n    <coverpage><image href="##{@md.make.cover_image[:cover]}" /></coverpage>}
+        else ''
+        end
+        if defined? @md.authors \
+        and @md.authors.length > 0
+          authors=[]
+          @md.authors.each do |author|
+            authors << '    <author>'
+            if not author[:others].empty?
+              authors << %{      <first-name>#{author[:others]}</first-name>}
+            end
+            if not author[:the].empty?
+              authors << %{      <last-name>#{author[:the]}</last-name>}
+            end
+            authors << '    </author>'
+          end
+          authors=authors.join("\n")
+        end
+        <<-WOK
+<?xml version="1.0" encoding="UTF-8"?>
+<FictionBook xmlns:xl="http://www.w3.org/1999/xlink"
+ xmlns="http://www.gribuser.ru/xml/fictionbook/2.0">
+<description>
+  <title-info>
+    <genre match="100">***</genre>
+#{authors}
+    <book-title>#{@md.title.full}</book-title>#{coverpageimage}
+    <annotation>
+    </annotation>
+    <date value="#{@md.date.published}">#{@md.date.published}</date>
+  </title-info>
+     <document-info>
+    <author>
+      <first-name/>
+      <last-name/>
+      <nickname/>
+    </author>
+    <program-used>#{version[:project]} #{version[:version]} and #{rb_ver}</program-used>
+    <date value="#{version[:date]}">#{version[:date]}</date>
+    <src-url>#{@md.file.output_path.manifest.url}/#{@md.file.base_filename.manifest}</src-url>
+    <id></id>
+    <version>1.0</version>
+    <history>#{date_available}#{date_modified}
+    </history>
+  </document-info>
+</description>
+<body>
+        WOK
+      end
+      def extract_endnotes                                #work on
+        endnotes,endnotes_raw,endnotes_b=[],[],[]
+        @data.each do |para|
+          endnotes_raw << para.obj.scan(/#{Mx[:en_a_o]}(.+?)#{Mx[:en_a_c]}/m)
+          endnotes_b << para.obj.scan(/#{Mx[:en_b_o]}(.+?)#{Mx[:en_b_c]}/m)
+        end
+        endnotes_raw.flatten.each do |en|
+          en=@trans.markup_fictionbook(en)
+          endnotes << en.gsub(/([\d+*]+)\s+(.+)/m,
+            %{<section id="footnote\\1">\n
+<title><p>\\1.</p></title>\n
+<p>\\2</p>\n
+</section>})
+        end
+        endnotes_raw=[]
+        endnotes
+      end
+      def extract_images                                #work on
+        require "base64"
+        images_raw,images_base64_fb2=[],[]
+        images_base64={}
+        if defined? @md.make.cover_image[:cover]
+          images_raw << @md.make.cover_image[:cover]
+        end
+        @data.each do |para|
+          images_raw << para.obj.scan(/#{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)
+        end
+        images_raw.flatten.sort.each do |img|
+          imgpth=@env.url.images_local + '/' + img
+          open(imgpth)
+          if FileTest.file?(imgpth)
+            images_base64[img]=Base64.encode64(File.read(imgpth))
+          end
+        end
+        images_raw=[]
+        images_base64.each_key do |k|
+          imgtype=case k
+          when /\.jpg/ then 'jpeg'
+          when /\.png/ then 'png'
+          when /\.gif/ then 'gif'
+          else              'jpeg'
+          end
+          images_base64_fb2 << %{<binary content-type="image/#{imgtype}" id="#{k}">#{images_base64[k]}
+</binary>
+}
+        end
+        images_base64_fb2.join("\n")
+      end
+      def markup_text(data)
+        data.each_with_index do |o,i|
+          if o.is ==:heading || o.is ==:para
+            o.obj=@trans.markup_fictionbook(o.obj,o.is) #unless o.obj==nil
+          end
+        end
+        data
+      end
+      def tail(images_base64_fb2)
+        <<-WOK
+</body>
+#{images_base64_fb2}
+</FictionBook>
+        WOK
+      end
+      def output(o,lev=nil,comment='')
+         puts lev == 0..6 \
+         ? "#{space*lev}<#{lev}>[#{o.ocn}] #{o.ln} #{o.obj}</#{lev}>#{comment}"
+         : "<#{lev}>[#{o.ocn}] #{o.ln} #{o.obj}</#{lev}>#{comment}"
+      end
+      def structure_collapsed(data)
+        puts "\ncollapsed structure, heading outline --->\n\n"
+        data.each_with_index do |o,i|
+          if  (o.is ==:heading || o.is ==:heading_insert)
+            output(o,o.lc)
+          end
+        end
+      end
+      def endnotes_build(endnotes,filename_fictionbook)
+        if endnotes.length > 0
+          filename_fictionbook.puts %{</body><body name="notes">}
+          endnotes.each do |en|
+            filename_fictionbook.puts SiSU_TextUtils::Wrap.new(en,80,6).line_wrap
+          end
+        end
+      end
+      def structure_build_collapsed(data,endnotes,images_base64)
+        file=SiSU_Env::FileOp.new(@md)
+        filename_fictionbook=file.write_file.xml_fictionbook
+        h=0
+        doc_position=:head
+        filename_fictionbook.puts head
+        data.each_with_index do |o,i|
+          ocn=(defined? o.ocn and not o.ocn.nil?) ? "\n#{Dx[:ocn_o]}#{o.ocn}#{Dx[:ocn_c]}" : ''
+          if  o.is ==:heading
+            lev=o.lc
+            chlv=(o.lv.to_i == 1) \
+            ? @chlv=o.lc.to_i
+            : 0
+            unless doc_position==:head
+              filename_fictionbook.puts structure_build_tag_close(lev,h)
+            end
+            doc_position=:body_and_tail
+            filename_fictionbook.puts %{#{space*lev}<#{tags.fictionbook[lev]}>
+#{space*lev}<title>
+}
+            filename_fictionbook.puts SiSU_TextUtils::Wrap.new("<p>#{o.obj}#{ocn}</p>",80,(lev*2+2)).line_wrap
+            filename_fictionbook.puts %{#{space*lev}</title>}
+            h=lev
+          elsif  o.is ==:heading_insert \
+          and o.obj =~/Endnotes/ \
+          and o.ln == 2
+            break
+          elsif (o.of ==:para or o.of ==:block)
+            filename_fictionbook.puts SiSU_TextUtils::Wrap.new("<p>#{o.obj}#{ocn}</p>",80,6).line_wrap
+          end
+        end
+        filename_fictionbook.puts structure_build_tag_close(0,h)
+        endnotes_build(endnotes,filename_fictionbook)
+        filename_fictionbook.puts tail(images_base64)
+        filename_fictionbook.close
+      end
+      def structure_build_tag_close(lev,h)
+        x=[]
+        case h
+        when 1
+          x << "#{space*1}</#{tags.fictionbook[1]}>" if (lev <= 1)
+        when 2
+          x << "#{space*2}</#{tags.fictionbook[2]}>" if (lev <= 2)
+          x << "#{space*1}</#{tags.fictionbook[1]}>" if (lev <= 1)
+        when 3
+          x << "#{space*3}</#{tags.fictionbook[3]}>" if (lev <= 3)
+          x << "#{space*2}</#{tags.fictionbook[2]}>" if (lev <= 2)
+          x << "#{space*1}</#{tags.fictionbook[1]}>" if (lev <= 1)
+        when 4
+          x << "#{space*4}</#{tags.fictionbook[4]}>" if (lev <= 4)
+          x << "#{space*3}</#{tags.fictionbook[3]}>" if (lev <= 3)
+          x << "#{space*2}</#{tags.fictionbook[2]}>" if (lev <= 2)
+          x << "#{space*1}</#{tags.fictionbook[1]}>" if (lev <= 1)
+        when 5
+          x << "#{space*5}</#{tags.fictionbook[5]}>" if (lev <= 5)
+          x << "#{space*4}</#{tags.fictionbook[4]}>" if (lev <= 4)
+          x << "#{space*3}</#{tags.fictionbook[3]}>" if (lev <= 3)
+          x << "#{space*2}</#{tags.fictionbook[2]}>" if (lev <= 2)
+          x << "#{space*1}</#{tags.fictionbook[1]}>" if (lev <= 1)
+        when 6
+          x << "#{space*6}</#{tags.fictionbook[6]}>" if (lev <= 6)
+          x << "#{space*5}</#{tags.fictionbook[5]}>" if (lev <= 5)
+          x << "#{space*4}</#{tags.fictionbook[4]}>" if (lev <= 4)
+          x << "#{space*3}</#{tags.fictionbook[3]}>" if (lev <= 3)
+          x << "#{space*2}</#{tags.fictionbook[2]}>" if (lev <= 2)
+          x << "#{space*1}</#{tags.fictionbook[1]}>" if (lev <= 1)
+        end
+        x.join("\n")
+      end
+    end
+  end
+end
+__END__
diff --git a/lib/sisu/v5/odf.rb b/lib/sisu/v5/xml_odf_odt.rb
index 5e277992..e7389110 100644
--- a/lib/sisu/v5/odf.rb
+++ b/lib/sisu/v5/xml_odf_odt.rb
@@ -59,17 +59,17 @@
  ** Description: opendocument text generation
 
 =end
-module SiSU_ODF
+module SiSU_XML_ODF_ODT
   require_relative 'particulars'                        # particulars.rb
     include SiSU_Particulars
-  require_relative 'dal'                                # dal.rb
+  require_relative 'ao'                                 # ao.rb
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env
   include SiSU_Viz
-  require_relative 'odf_format'                         # odf_format.rb
-    include SiSU_ODF_Format
+  require_relative 'xml_odf_odt_format'                 # xml_odf_odt_format.rb
+    include SiSU_XML_ODF_ODT_Format
   require_relative 'shared_metadata'                    # shared_metadata.rb
-  require_relative 'shared_txt'                         # shared_txt.rb
+  require_relative 'txt_shared'                         # txt_shared.rb
   @@alt_id_count,@@alt_id_count,@@tablehead,@@number_of_cols=0,0,0,0
   class Source
     require 'zlib'
@@ -81,7 +81,7 @@ module SiSU_ODF
     end
     def read
       begin
-        @md,@env,@dal_array=@particulars.md,@particulars.env,@particulars.dal_array
+        @md,@env,@ao_array=@particulars.md,@particulars.env,@particulars.ao_array
         unless  @opt.act[:quiet][:set]==:on
           tool=(@opt.act[:verbose][:set]==:on \
           || @opt.act[:verbose_plus][:set]==:on \
@@ -98,7 +98,7 @@ module SiSU_ODF
             SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],@opt.fns,"file://#{@md.file.output_path.odt.dir}/#{@md.file.base_filename.odt}").flow
           end
         end
-        SiSU_ODF::Source::Scroll.new(@particulars).songsheet
+        SiSU_XML_ODF_ODT::Source::Scroll.new(@particulars).songsheet
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -109,24 +109,23 @@ module SiSU_ODF
     private
     class Scroll <Source
       require_relative 'defaults'                       # defaults.rb
-      require_relative 'shared_txt'                     # shared_txt.rb
+      require_relative 'txt_shared'                     # txt_shared.rb
       @@img_count=0
       @@odf={ body: [], head: [], toc: [],  metadata: [], tail: [], book_idx: [], endnotes: [] }
       @@docstart=true
       @@fns=nil
       def initialize(particulars)
-        @md,@env,@dal_array=particulars.md,particulars.env,particulars.dal_array
+        @md,@env,@ao_array=particulars.md,particulars.env,particulars.ao_array
         @vz=SiSU_Viz::Defaults.new
         @tab="\t"
         @brace_url=SiSU_Viz::Defaults.new.url_decoration
         @br=(@md.opt.act[:maintenance][:set]==:on) \
         ? '' : ''
-        #@br=(@md.opt.cmd =~/M/) ? "\n" : ''
       end
       def songsheet
         begin
           pre
-          @data=markup(@dal_array)
+          @data=markup(@ao_array)
           publish
         ensure
           unless (@md.opt.act[:verbose_plus][:set]==:on \
@@ -139,6 +138,10 @@ module SiSU_ODF
           end
         end
       end
+      def break_line
+        (@md.opt.act[:maintenance][:set]==:on) \
+        ? "\n" : ''
+      end
       # Used for extraction of endnotes from paragraphs
       def extract_endnotes(dob='')
         notes=dob.obj.scan(/#{Mx[:en_a_o]}(\d+\s+.+?)#{Mx[:en_a_c]}/)[1] #FIX
@@ -160,7 +163,7 @@ module SiSU_ODF
         idx_arr,idx_raw=[],SiSU_Particulars::CombinedSingleton.instance.get_idx_raw(@md.opt).raw_idx
         idx_raw.each do |x|
           x=if x.is_a?(String)
-            SiSU_ODF_Format::FormatBookIndex.new(x).book_idx_bookmark
+            SiSU_XML_ODF_ODT_Format::FormatBookIndex.new(x).book_idx_bookmark
           else nil
           end
           idx_arr << x.strip if x.is_a?(String)
@@ -173,12 +176,12 @@ module SiSU_ODF
       end
       def odf_tail
         manifest="#{@md.file.output_path.manifest.url}/#{@md.file.base_filename.manifest}"
-        @@odf[:tail] << %{<text:p text:style-name="P_normal">Available document outputs: <br /> &lt;<text:a xlink:type="simple" xlink:href="#{manifest}">#{manifest}</text:a>&gt;</text:p>}
-        @@odf[:tail] << %{\n<text:p text:style-name="P_normal">SiSU: &lt;<text:a xlink:type="simple" xlink:href="http://www.jus.uio.no/lm">www.jus.uio.no/sisu</text:a>&gt; and &lt;<text:a xlink:type="simple" xlink:href="http://www.sisudoc.org">www.sisudoc.org</text:a>&gt;</text:p>}
+        @@odf[:tail] << %{<text:p text:style-name="P_normal">Available document outputs: <br /> &lt;<text:a xl:type="simple" xl:href="#{manifest}">#{manifest}</text:a>&gt;</text:p>}
+        @@odf[:tail] << %{\n<text:p text:style-name="P_normal">SiSU: &lt;<text:a xl:type="simple" xl:href="http://www.jus.uio.no/lm">www.jus.uio.no/sisu</text:a>&gt; and &lt;<text:a xl:type="simple" xl:href="http://www.sisudoc.org">www.sisudoc.org</text:a>&gt;</text:p>}
         @@odf[:tail] << "\n</office:text></office:body></office:document-content>"
       end
       def set_bookmark_tag(dob)
-        SiSU_ODF_Format::Tags.new.set_bookmark_tag(dob)
+        SiSU_XML_ODF_ODT_Format::Tags.new.set_bookmark_tag(dob)
       end
       def heading(dob,p_num)
         dob=footnote(dob)
@@ -263,7 +266,7 @@ module SiSU_ODF
         and h.to_s =~/\d/ \
         and w.to_s =~/\d/
           @@img_count +=1
-          %{<draw:frame draw:style-name="fr1" draw:name="graphics#{@@img_count}" text:anchor-type="as-char" svg:width="#{w}cm" svg:height="#{h}cm" draw:z-index="2"><draw:image xlink:href="Pictures/#{i}" xlink:type="simple" xlink:show="embed" xlink:actuate="onLoad"/></draw:frame>#{c}} #anchor-type: as-char or paragraph or char or ...
+          %{<draw:frame draw:style-name="fr1" draw:name="graphics#{@@img_count}" text:anchor-type="as-char" svg:width="#{w}cm" svg:height="#{h}cm" draw:z-index="2"><draw:image xl:href="Pictures/#{i}" xl:type="simple" xl:show="embed" xl:actuate="onLoad"/></draw:frame>#{c}} #anchor-type: as-char or paragraph or char or ...
         else %{<text:p text:style-name="P_normal">[image omitted]</text:p>}
         end
       end
@@ -293,13 +296,13 @@ module SiSU_ODF
         map_nametags=SiSU_Particulars::CombinedSingleton.instance.get_map_nametags(@md).nametags_map
         t=case url
         when /^https?:/
-          %{<text:a xlink:type="simple" xlink:href="#{url}">#{txt.strip}</text:a>#{trail}}
+          %{<text:a xl:type="simple" xl:href="#{url}">#{txt.strip}</text:a>#{trail}}
         when /^:/                 # site same document collection html link
           url=url.gsub(/^:/,"#{@env.url.root}/")
-          %{<text:a xlink:type="simple" xlink:href="#{url}">#{txt.strip}</text:a>#{trail}}
+          %{<text:a xl:type="simple" xl:href="#{url}">#{txt.strip}</text:a>#{trail}}
         when /^\.\.\//                 # site same document collection html link
           url=url.gsub(/^\.\.\//,"#{@env.url.root}/")
-          %{<text:a xlink:type="simple" xlink:href="#{url}">#{txt.strip}</text:a>#{trail}}
+          %{<text:a xl:type="simple" xl:href="#{url}">#{txt.strip}</text:a>#{trail}}
         else                           # document internal link
           if map_nametags[url] \
           and map_nametags[url][:segname]
@@ -307,7 +310,7 @@ module SiSU_ODF
           end
           t=map_nametags[url] \
           && map_nametags[url][:segname] \
-          ? %{<text:a xlink:type="simple" xlink:href="#{@env.url.root}/#{@md.fnb}/#{map_nametags[url][:segname]}#{Sfx[:html]}##{url}">#{txt.strip}</text:a>#{trail}}
+          ? %{<text:a xl:type="simple" xl:href="#{@env.url.root}/#{@md.fnb}/#{map_nametags[url][:segname]}#{Sfx[:html]}##{url}">#{txt.strip}</text:a>#{trail}}
           : %{#{txt.strip}#{trail}}
         end
         t
@@ -362,11 +365,11 @@ module SiSU_ODF
       def normal(dob,p_num)                                                           #P1 - P3
         dob=footnote(dob)
         dob.obj=dob.obj.gsub(/#{Mx[:url_o]}_(\S+?)#{Mx[:url_c]}/,
-            '<text:a xlink:type="simple" xlink:href="\1">\1</text:a>'). #http ftp matches escaped, no decoration
+            '<text:a xl:type="simple" xl:href="\1">\1</text:a>'). #http ftp matches escaped, no decoration
           gsub(/#{Mx[:url_o]}([a-zA-Z0-9._-]+\@\S+?\.[a-zA-Z0-9._-]+)#{Mx[:url_c]}/,
-            %{#{@brace_url.xml_open}<text:a xlink:type="simple" xlink:href="mailto:\\1">\\1</text:a>#{@brace_url.xml_close}}).
+            %{#{@brace_url.xml_open}<text:a xl:type="simple" xl:href="mailto:\\1">\\1</text:a>#{@brace_url.xml_close}}).
           gsub(/#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,
-            %{#{@brace_url.xml_open}<text:a xlink:type="simple" xlink:href="\\1">\\1</text:a>#{@brace_url.xml_close}}) #http ftp matches with decoration
+            %{#{@brace_url.xml_open}<text:a xl:type="simple" xl:href="\\1">\\1</text:a>#{@brace_url.xml_close}}) #http ftp matches with decoration
         dob.obj= if dob.is==:para \
         and dob.indent.to_s =~/[0-9]/ \
         and dob.indent == dob.hang
@@ -383,7 +386,7 @@ module SiSU_ODF
       end
       def footnote_urls(str)
         str=str.gsub(/#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,
-          %{#{@brace_url.xml_open}<text:a xlink:type="simple" xlink:href="\\1">\\1</text:a>#{@brace_url.xml_close}})
+          %{#{@brace_url.xml_open}<text:a xl:type="simple" xl:href="\\1">\\1</text:a>#{@brace_url.xml_close}})
         str=text_link(str) if str =~/#{Mx[:lnk_o]}.+?#{Mx[:lnk_c]}#{Mx[:url_o]}\S+?#{Mx[:url_c]}/
         str=text_link_relative(str) if str =~/#{Mx[:lnk_o]}.+?#{Mx[:lnk_c]}#{Mx[:rel_o]}\S+?#{Mx[:rel_c]}/
         str
@@ -452,15 +455,15 @@ module SiSU_ODF
       def group(dob,p_num)                                                            #P4 #same as verse
         parray=[]
         dob.obj=dob.obj.gsub(/#{Mx[:url_o]}_(\S+?)#{Mx[:url_c]}/,
-            '<text:a xlink:type="simple" xlink:href="\1">\1</text:a>'). #http ftp matches escaped, no decoration
+            '<text:a xl:type="simple" xl:href="\1">\1</text:a>'). #http ftp matches escaped, no decoration
           gsub(/#{Mx[:url_o]}([a-zA-Z0-9._-]+\@\S+?\.[a-zA-Z0-9._-]+)#{Mx[:url_c]}/,
-            %{#{@brace_url.xml_open}<text:a xlink:type="simple" xlink:href="mailto:\\1">\\1</text:a>#{@brace_url.xml_close}}).
+            %{#{@brace_url.xml_open}<text:a xl:type="simple" xl:href="mailto:\\1">\\1</text:a>#{@brace_url.xml_close}}).
           gsub(/#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,
-            %{#{@brace_url.xml_open}<text:a xlink:type="simple" xlink:href="\\1">\\1</text:a>#{@brace_url.xml_close}}) #http ftp matches with decoration
+            %{#{@brace_url.xml_open}<text:a xl:type="simple" xl:href="\\1">\\1</text:a>#{@brace_url.xml_close}}) #http ftp matches with decoration
         dob.obj.split(/#{Mx[:br_line]}|#{Mx[:br_nl]}/).each_with_index do |parablock,i|
           set_ref=(i==0) ? "#{p_num[:set_ref]}#{set_bookmark_tag(dob)}" : ''
           parablock=group_clean(parablock)
-          parablock=parablock.gsub(/&lt;text:a xlink:type="simple" xlink:href="(.+?)"&gt;/m,'<text:a xlink:type="simple" xlink:href="\1">').
+          parablock=parablock.gsub(/&lt;text:a xl:type="simple" xl:href="(.+?)"&gt;/m,'<text:a xl:type="simple" xl:href="\1">').
             gsub(/&lt;(\/text:a)&gt;/,'<\1>').
             gsub(/&lt;(text:note text:id=.+?)&gt;/,'<\1>').
             gsub(/&lt;(text:p text:style-name="Footnote")&gt;/,'<\1>').
@@ -476,15 +479,15 @@ module SiSU_ODF
       def block(dob,p_num)                                                            #P4 #same as verse
         parray=[]
         dob.obj=dob.obj.gsub(/#{Mx[:url_o]}_(\S+?)#{Mx[:url_c]}/,
-            '<text:a xlink:type="simple" xlink:href="\1">\1</text:a>'). #http ftp matches escaped, no decoration
+            '<text:a xl:type="simple" xl:href="\1">\1</text:a>'). #http ftp matches escaped, no decoration
           gsub(/#{Mx[:url_o]}([a-zA-Z0-9._-]+\@\S+?\.[a-zA-Z0-9._-]+)#{Mx[:url_c]}/,
-            %{#{@brace_url.xml_open}<text:a xlink:type="simple" xlink:href="mailto:\\1">\\1</text:a>#{@brace_url.xml_close}}).
+            %{#{@brace_url.xml_open}<text:a xl:type="simple" xl:href="mailto:\\1">\\1</text:a>#{@brace_url.xml_close}}).
           gsub(/#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,
-            %{#{@brace_url.xml_open}<text:a xlink:type="simple" xlink:href="\\1">\\1</text:a>#{@brace_url.xml_close}}) #http ftp matches with decoration
+            %{#{@brace_url.xml_open}<text:a xl:type="simple" xl:href="\\1">\\1</text:a>#{@brace_url.xml_close}}) #http ftp matches with decoration
         dob.obj.split(/#{Mx[:br_line]}|#{Mx[:br_nl]}/).each_with_index do |parablock,i|
           set_ref=(i==0) ? "#{p_num[:set_ref]}#{set_bookmark_tag(dob)}" : ''
           parablock=group_clean(parablock)
-          parablock=parablock.gsub(/&lt;text:a xlink:type="simple" xlink:href="(.+?)"&gt;/m,'<text:a xlink:type="simple" xlink:href="\1">').
+          parablock=parablock.gsub(/&lt;text:a xl:type="simple" xl:href="(.+?)"&gt;/m,'<text:a xl:type="simple" xl:href="\1">').
             gsub(/&lt;(\/text:a)&gt;/,'<\1>').
             gsub(/&lt;(text:note text:id=.+?)&gt;/,'<\1>').
             gsub(/&lt;(text:p text:style-name="Footnote")&gt;/,'<\1>').
@@ -506,7 +509,7 @@ module SiSU_ODF
             parablock=group_clean(parablock)
             parablock=parablock.gsub(/^\s*$/,'<br />').
               gsub(/#{Mx[:url_o]}_(\S+?)#{Mx[:url_c]}/,
-                '<text:a xlink:type="simple" xlink:href="\1">\1</text:a>') #http ftp matches escaped, no decoration
+                '<text:a xl:type="simple" xl:href="\1">\1</text:a>') #http ftp matches escaped, no decoration
             parray << %{<text:p text:style-name="P_code">#{set_ref}#{parablock}</text:p>} if parablock =~/\S+/
           end
           dob.obj=parray.join \
@@ -518,14 +521,14 @@ module SiSU_ODF
       def table(dob,p_num)                                                            #
         if dob.is ==:table
           dob=footnote(dob) #check
-          table=SiSU_ODF_Format::Table.new(@md,dob,p_num)
+          table=SiSU_XML_ODF_ODT_Format::Table.new(@md,dob,p_num)
           dob=table.table
         end
         dob
       end
       def obj_break(dob)
         if dob.is ==:break
-          br=SiSU_ODF_Format::FormatObjBreak.new(@md,dob)
+          br=SiSU_XML_ODF_ODT_Format::FormatObjBreak.new(@md,dob)
           if dob.obj==Mx[:br_page] \
           or dob.obj==Mx[:br_page_new]
             dob=br.br_page
@@ -551,31 +554,31 @@ module SiSU_ODF
           if @env.odt_ocn?
             if defined? dob.ocn \
             and dob.ocn.is_a?(Fixnum)
-              p_num=SiSU_ODF_Format::ParagraphNumber.new(dob.ocn).set_bookmark_and_display
+              p_num=SiSU_XML_ODF_ODT_Format::ParagraphNumber.new(dob.ocn).set_bookmark_and_display
             end
           end
         end
         if dob.is==:heading
-          @@odf[:body] << heading(dob,p_num).obj << @br*2
+          @@odf[:body] << heading(dob,p_num).obj << break_line*2
           if SiSU_Env::ProcessingSettings.new(md).build.toc?
             if dob.lv =~/[A-C1]/i
               @@odf[:toc] << toc(dob,p_num).obj
             end
           end
         elsif dob.is ==:verse
-          @@odf[:body] << poem(dob,p_num).obj << @br*2
+          @@odf[:body] << poem(dob,p_num).obj << break_line*2
         elsif dob.is==:group
-          @@odf[:body] << group(dob,p_num).obj << @br*2
+          @@odf[:body] << group(dob,p_num).obj << break_line*2
         elsif dob.is==:block
-          @@odf[:body] << block(dob,p_num).obj << @br*2
+          @@odf[:body] << block(dob,p_num).obj << break_line*2
         elsif dob.is==:code
-          @@odf[:body] << code(dob,p_num).obj << @br*2
+          @@odf[:body] << code(dob,p_num).obj << break_line*2
         elsif dob.is==:table #elsif dob.obj =~ /<!Th?¡/u
-          @@odf[:body] << table(dob,p_num).obj << @br*2
+          @@odf[:body] << table(dob,p_num).obj << break_line*2
         elsif dob.is==:break
-          @@odf[:body] << obj_break(dob).obj << @br*2
+          @@odf[:body] << obj_break(dob).obj << break_line*2
         else
-          @@odf[:body] << normal(dob,p_num).obj << @br*2 # main text, contents, body KEEP
+          @@odf[:body] << normal(dob,p_num).obj << break_line*2 # main text, contents, body KEEP
         end
         @@endnotes_para=[]
       end
@@ -639,7 +642,7 @@ module SiSU_ODF
             gsub(/#{Mx[:mk_o]}[~-]##{Mx[:mk_c]}/,'')
           if dob.is==:para \
           and dob.bullet_
-            dob.obj='<draw:frame draw:style-name="gr1" text:anchor-type="as-char" svg:width="0.22cm" svg:height="0.22cm" draw:z-index="2"><draw:image xlink:href="Pictures/bullet_09.png" xlink:type="simple" xlink:show="embed" xlink:actuate="onLoad"/></draw:frame> ' +
+            dob.obj='<draw:frame draw:style-name="gr1" text:anchor-type="as-char" svg:width="0.22cm" svg:height="0.22cm" draw:z-index="2"><draw:image xl:href="Pictures/bullet_09.png" xl:type="simple" xl:show="embed" xl:actuate="onLoad"/></draw:frame> ' +
               dob.obj
           end
           dob.obj=dob.obj.gsub(/#{Mx[:br_line]}/,'<br />').
@@ -674,7 +677,7 @@ module SiSU_ODF
           and (dob.obj =~/~metadata/ or dob =~/#{Mx[:lv_o]}1:meta#{Mx[:lv_x]}\s*Document Information/) #fix Mx[:lv_o]
           if dob.is !~/(^#{Rx[:meta]}|#{Mx[:br_eof]}|#{Mx[:br_endnotes]})/ #check
             if defined? dob.ocn and dob.ocn =~/\d+/
-              @p_num=SiSU_ODF_Format::ParagraphNumber.new(dob.ocn)
+              @p_num=SiSU_XML_ODF_ODT_Format::ParagraphNumber.new(dob.ocn)
             end
             if dob.is ==:heading \
             || dob.is ==:para \
@@ -728,7 +731,7 @@ WOK
         end
         x=<<WOK
 <?xml version="1.0" encoding="UTF-8"?>
-<office:document-content xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:style="urn:oasis:names:tc:opendocument:xmlns:style:1.0" xmlns:text="urn:oasis:names:tc:opendocument:xmlns:text:1.0" xmlns:table="urn:oasis:names:tc:opendocument:xmlns:table:1.0" xmlns:draw="urn:oasis:names:tc:opendocument:xmlns:drawing:1.0" xmlns:fo="urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:number="urn:oasis:names:tc:opendocument:xmlns:datastyle:1.0" xmlns:svg="urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0" xmlns:chart="urn:oasis:names:tc:opendocument:xmlns:chart:1.0" xmlns:dr3d="urn:oasis:names:tc:opendocument:xmlns:dr3d:1.0" xmlns:math="http://www.w3.org/1998/Math/MathML" xmlns:form="urn:oasis:names:tc:opendocument:xmlns:form:1.0" xmlns:script="urn:oasis:names:tc:opendocument:xmlns:script:1.0" xmlns:ooo="http://openoffice.org/2004/office" xmlns:ooow="http://openoffice.org/2004/writer" xmlns:oooc="http://openoffice.org/2004/calc" xmlns:dom="http://www.w3.org/2001/xml-events" xmlns:xforms="http://www.w3.org/2002/xforms" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:rpt="http://openoffice.org/2005/report" xmlns:of="urn:oasis:names:tc:opendocument:xmlns:of:1.2" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:grddl="http://www.w3.org/2003/g/data-view#" xmlns:tableooo="http://openoffice.org/2009/table" xmlns:field="urn:openoffice:names:experimental:ooo-ms-interop:xmlns:field:1.0" xmlns:formx="urn:openoffice:names:experimental:ooxml-odf-interop:xmlns:form:1.0" xmlns:css3t="http://www.w3.org/TR/css3-text/" office:version="1.2"><office:scripts/>
+<office:document-content xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:style="urn:oasis:names:tc:opendocument:xmlns:style:1.0" xmlns:text="urn:oasis:names:tc:opendocument:xmlns:text:1.0" xmlns:table="urn:oasis:names:tc:opendocument:xmlns:table:1.0" xmlns:draw="urn:oasis:names:tc:opendocument:xmlns:drawing:1.0" xmlns:fo="urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0" xmlns:xl="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:number="urn:oasis:names:tc:opendocument:xmlns:datastyle:1.0" xmlns:svg="urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0" xmlns:chart="urn:oasis:names:tc:opendocument:xmlns:chart:1.0" xmlns:dr3d="urn:oasis:names:tc:opendocument:xmlns:dr3d:1.0" xmlns:math="http://www.w3.org/1998/Math/MathML" xmlns:form="urn:oasis:names:tc:opendocument:xmlns:form:1.0" xmlns:script="urn:oasis:names:tc:opendocument:xmlns:script:1.0" xmlns:ooo="http://openoffice.org/2004/office" xmlns:ooow="http://openoffice.org/2004/writer" xmlns:oooc="http://openoffice.org/2004/calc" xmlns:dom="http://www.w3.org/2001/xml-events" xmlns:xforms="http://www.w3.org/2002/xforms" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:rpt="http://openoffice.org/2005/report" xmlns:of="urn:oasis:names:tc:opendocument:xmlns:of:1.2" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:grddl="http://www.w3.org/2003/g/data-view#" xmlns:tableooo="http://openoffice.org/2009/table" xmlns:field="urn:openoffice:names:experimental:ooo-ms-interop:xmlns:field:1.0" xmlns:formx="urn:openoffice:names:experimental:ooxml-odf-interop:xmlns:form:1.0" xmlns:css3t="http://www.w3.org/TR/css3-text/" office:version="1.2"><office:scripts/>
 <office:font-face-decls><style:font-face style:name="DejaVu Sans Mono" svg:font-family="'DejaVu Sans Mono'" style:font-adornments="Book" style:font-family-generic="modern" style:font-pitch="fixed"/><style:font-face style:name="Inconsolata" svg:font-family="Inconsolata" style:font-adornments="Regular" style:font-pitch="fixed"/><style:font-face style:name="Liberation Mono" svg:font-family="'Liberation Mono'" style:font-adornments="Regular" style:font-family-generic="modern" style:font-pitch="fixed"/><style:font-face style:name="DejaVu Sans" svg:font-family="'DejaVu Sans'" style:font-adornments="ExtraLight" style:font-family-generic="swiss" style:font-pitch="variable"/><style:font-face style:name="Nimbus Sans L" svg:font-family="&apos;Nimbus Sans L&apos;" style:font-pitch="variable"/><style:font-face style:name="Tahoma" svg:font-family="Tahoma, Lucidasans, &apos;Lucida Sans&apos;, &apos;Arial Unicode MS&apos;" style:font-pitch="variable"/><style:font-face style:name="Nimbus Roman No9 L" svg:font-family="&apos;Nimbus Roman No9 L&apos;" style:font-family-generic="roman" style:font-pitch="variable"/><style:font-face style:name="Bitstream Vera Sans" svg:font-family="&apos;Bitstream Vera Sans&apos;" style:font-family-generic="swiss" style:font-pitch="variable"/></office:font-face-decls>
 <office:automatic-styles>
 #{table}
@@ -755,7 +758,7 @@ WOK
           br_pg <<
           @@odf[:metadata] <<
           @@odf[:tail]
-        SiSU_ODF::Source::Output.new(content,@md,@env).odf
+        SiSU_XML_ODF_ODT::Source::Output.new(content,@md,@env).odf
         @@odf={ head: [], toc: [], body: [], tail: [], book_idx: [], metadata: [] }
       end
     end
@@ -766,7 +769,7 @@ WOK
       def odf                                                           #%odf output
         env=SiSU_Env::FileOp.new(@md)
         env.mkdir
-        header=SiSU_ODF_Format::ODT_Head_1_2.new(@md)
+        header=SiSU_XML_ODF_ODT_Format::ODT_Head_1_2.new(@md)
         filename="#{@env.processing_path.odt}/manifest.rdf"
         od=File.new(filename,'w+')
         od << header.manifest_rdf
diff --git a/lib/sisu/v5/odf_format.rb b/lib/sisu/v5/xml_odf_odt_format.rb
index 28c69c44..27628e82 100644
--- a/lib/sisu/v5/odf_format.rb
+++ b/lib/sisu/v5/xml_odf_odt_format.rb
@@ -59,7 +59,7 @@
  ** Description: opendocument formatting, default opendocument template
 
 =end
-module SiSU_ODF_Format
+module SiSU_XML_ODF_ODT_Format
   require_relative 'param'                              # param.rb
     include SiSU_Param
   include SiSU_Viz
@@ -170,6 +170,10 @@ module SiSU_ODF_Format
         @@fns=@md.fns
       end
     end
+    def break_line
+      (@md.opt.act[:maintenance][:set]==:on) \
+      ? "\n" : ''
+    end
     def table_head_open(count)
       type=(@dob.head_) \
       ? 1
@@ -191,9 +195,9 @@ module SiSU_ODF_Format
       when 14; 'N'
       else     'D'
       end
-      tag=SiSU_ODF_Format::Tags.new.set_bookmark_tag(@dob)
-      %{<table:table table:name="Table#{count}" table:style-name="Table#{type}">#{@p_num[:set_ref]}#{tag}#{@br}} +
-      %{<table:table-column table:style-name="Table#{type}.#{alpha}" table:number-columns-repeated="#{@dob.cols}"/>#{@br}}
+      tag=SiSU_XML_ODF_ODT_Format::Tags.new.set_bookmark_tag(@dob)
+      %{<table:table table:name="Table#{count}" table:style-name="Table#{type}">#{@p_num[:set_ref]}#{tag}#{break_line}} +
+      %{<table:table-column table:style-name="Table#{type}.#{alpha}" table:number-columns-repeated="#{@dob.cols}"/>#{break_line}}
     end
     def table_close(tablefoot='')
       '</table:table>' \
@@ -206,16 +210,16 @@ module SiSU_ODF_Format
       else 'P_table_cell'
       end
       str=str.gsub(/^~$/,'') # tilde / empty cell
-      %{<table:table-cell office:value-type="string">#{@br}} +
-      %{<text:p text:style-name="#{txt_name_cell}">#{@br}} +
+      %{<table:table-cell office:value-type="string">#{break_line}} +
+      %{<text:p text:style-name="#{txt_name_cell}">#{break_line}} +
       %{#{str}} +
-      %{</text:p>#{@br}} +
-      %{</table:table-cell>#{@br}}
+      %{</text:p>#{break_line}} +
+      %{</table:table-cell>#{break_line}}
     end
     def table_tag_row(str,i)
-      %{<table:table-row>#{@br}} +
+      %{<table:table-row>#{break_line}} +
       %{#{str}} +
-      %{</table:table-row>#{@br}}
+      %{</table:table-row>#{break_line}}
     end
     def table_tag_row_dump(str,i)
       txt_name_row=if i==0 \
@@ -223,13 +227,13 @@ module SiSU_ODF_Format
         'Table_Heading'
       else 'P_table_cell'
       end
-      %{<table:table-row>#{@br}} +
-      %{<table:table-cell office:value-type="string">#{@br}} +
-      %{<text:p text:style-name="#{txt_name_row}">#{@br}} +
+      %{<table:table-row>#{break_line}} +
+      %{<table:table-cell office:value-type="string">#{break_line}} +
+      %{<text:p text:style-name="#{txt_name_row}">#{break_line}} +
       %{#{str}} +
-      %{</text:p>#{@br}} +
-      %{</table:table-cell>#{@br}} +
-      %{</table:table-row>#{@br}}
+      %{</text:p>#{break_line}} +
+      %{</table:table-cell>#{break_line}} +
+      %{</table:table-row>#{break_line}}
     end
     def table_row(row,i)
       row='' if row =~/^<!$/
@@ -318,7 +322,7 @@ WOK
     def meta_xml
       x=<<WOK
 <?xml version="1.0" encoding="UTF-8"?>
-<office:document-meta xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:ooo="http://openoffice.org/2004/office" xmlns:grddl="http://www.w3.org/2003/g/data-view#" office:version="1.2">
+<office:document-meta xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:xl="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:ooo="http://openoffice.org/2004/office" xmlns:grddl="http://www.w3.org/2003/g/data-view#" office:version="1.2">
   <office:meta>
     <meta:generator>#{@generator}</meta:generator>
     <meta:creation-date>#{@md.generated}</meta:creation-date>
@@ -334,7 +338,7 @@ WOK
     def settings_xml
       x=<<WOK
 <?xml version="1.0" encoding="UTF-8"?>
-<office:document-settings xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:config="urn:oasis:names:tc:opendocument:xmlns:config:1.0" xmlns:ooo="http://openoffice.org/2004/office" office:version="1.2">
+<office:document-settings xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:xl="http://www.w3.org/1999/xlink" xmlns:config="urn:oasis:names:tc:opendocument:xmlns:config:1.0" xmlns:ooo="http://openoffice.org/2004/office" office:version="1.2">
   <office:settings>
     <config:config-item-set config:name="ooo:view-settings">
       <config:config-item config:name="ViewAreaTop" config:type="int">0</config:config-item>
@@ -437,7 +441,7 @@ WOK
     def styles_xml
       x=<<WOK
 <?xml version="1.0" encoding="UTF-8"?>
-<office:document-styles xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:style="urn:oasis:names:tc:opendocument:xmlns:style:1.0" xmlns:text="urn:oasis:names:tc:opendocument:xmlns:text:1.0" xmlns:table="urn:oasis:names:tc:opendocument:xmlns:table:1.0" xmlns:draw="urn:oasis:names:tc:opendocument:xmlns:drawing:1.0" xmlns:fo="urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:number="urn:oasis:names:tc:opendocument:xmlns:datastyle:1.0" xmlns:svg="urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0" xmlns:chart="urn:oasis:names:tc:opendocument:xmlns:chart:1.0" xmlns:dr3d="urn:oasis:names:tc:opendocument:xmlns:dr3d:1.0" xmlns:math="http://www.w3.org/1998/Math/MathML" xmlns:form="urn:oasis:names:tc:opendocument:xmlns:form:1.0" xmlns:script="urn:oasis:names:tc:opendocument:xmlns:script:1.0" xmlns:ooo="http://openoffice.org/2004/office" xmlns:ooow="http://openoffice.org/2004/writer" xmlns:oooc="http://openoffice.org/2004/calc" xmlns:dom="http://www.w3.org/2001/xml-events" xmlns:rpt="http://openoffice.org/2005/report" xmlns:of="urn:oasis:names:tc:opendocument:xmlns:of:1.2" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:grddl="http://www.w3.org/2003/g/data-view#" xmlns:tableooo="http://openoffice.org/2009/table" xmlns:css3t="http://www.w3.org/TR/css3-text/" office:version="1.2">
+<office:document-styles xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:style="urn:oasis:names:tc:opendocument:xmlns:style:1.0" xmlns:text="urn:oasis:names:tc:opendocument:xmlns:text:1.0" xmlns:table="urn:oasis:names:tc:opendocument:xmlns:table:1.0" xmlns:draw="urn:oasis:names:tc:opendocument:xmlns:drawing:1.0" xmlns:fo="urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0" xmlns:xl="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:number="urn:oasis:names:tc:opendocument:xmlns:datastyle:1.0" xmlns:svg="urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0" xmlns:chart="urn:oasis:names:tc:opendocument:xmlns:chart:1.0" xmlns:dr3d="urn:oasis:names:tc:opendocument:xmlns:dr3d:1.0" xmlns:math="http://www.w3.org/1998/Math/MathML" xmlns:form="urn:oasis:names:tc:opendocument:xmlns:form:1.0" xmlns:script="urn:oasis:names:tc:opendocument:xmlns:script:1.0" xmlns:ooo="http://openoffice.org/2004/office" xmlns:ooow="http://openoffice.org/2004/writer" xmlns:oooc="http://openoffice.org/2004/calc" xmlns:dom="http://www.w3.org/2001/xml-events" xmlns:rpt="http://openoffice.org/2005/report" xmlns:of="urn:oasis:names:tc:opendocument:xmlns:of:1.2" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:grddl="http://www.w3.org/2003/g/data-view#" xmlns:tableooo="http://openoffice.org/2009/table" xmlns:css3t="http://www.w3.org/TR/css3-text/" office:version="1.2">
   <office:font-face-decls>
     <style:font-face style:name="DejaVu Sans Mono" svg:font-family="'DejaVu Sans Mono'" style:font-adornments="Book" style:font-family-generic="modern" style:font-pitch="fixed"/>
     <style:font-face style:name="Nimbus Sans L" svg:font-family="'Nimbus Sans L'" style:font-pitch="variable"/>
diff --git a/lib/sisu/v5/xml.rb b/lib/sisu/v5/xml_sax.rb
index f9741ec1..aa701822 100644
--- a/lib/sisu/v5/xml.rb
+++ b/lib/sisu/v5/xml_sax.rb
@@ -66,7 +66,7 @@ module SiSU_XML_SAX
     include SiSU_Particulars
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env
-  require_relative 'shared_xml'                         # shared_xml.rb
+  require_relative 'xml_shared'                         # xml_shared.rb
     include SiSU_XML_Munge
   require_relative 'xml_format'                         # xml_format.rb
     include SiSU_XML_Format
@@ -82,7 +82,7 @@ module SiSU_XML_SAX
     end
     def read
       begin
-        @env,@md,@dal_array=@particulars.env,@particulars.md,@particulars.dal_array
+        @env,@md,@ao_array=@particulars.env,@particulars.md,@particulars.ao_array
         unless @opt.act[:quiet][:set]==:on
           tool=if (@opt.act[:verbose_plus][:set]==:on \
           || @opt.act[:maintenance][:set]==:on)
@@ -114,7 +114,7 @@ module SiSU_XML_SAX
     private
     class Songsheet
       def initialize(particulars)
-        @env,@md,@dal_array,@particulars=particulars.env,particulars.md,particulars.dal_array,particulars
+        @env,@md,@ao_array,@particulars=particulars.env,particulars.md,particulars.ao_array,particulars
         @file=SiSU_Env::FileOp.new(@md)
       end
       def song
@@ -135,20 +135,20 @@ module SiSU_XML_SAX
       end
     end
     class Scroll
-      require_relative 'shared_txt'                     # shared_txt.rb
+      require_relative 'txt_shared'                     # txt_shared.rb
         include SiSU_TextUtils
       require_relative 'css'                            # css.rb
-      require_relative 'shared_xhtml'                   # decide use, whether xml rather than xhtml
+      require_relative 'xhtml_shared'                   # decide use, whether xml rather than xhtml
       @@xml={ body: [], open: [], close: [], head: [] }
       def initialize(particulars)
-        @env,@md,@dal_array=particulars.env,particulars.md,particulars.dal_array
+        @env,@md,@ao_array=particulars.env,particulars.md,particulars.ao_array
         @vz=SiSU_Viz::Defaults.new
         @trans=SiSU_XML_Munge::Trans.new(@md)
         @sys=SiSU_Env::SystemCall.new
       end
       def songsheet
         pre
-        @data=markup(@dal_array)
+        @data=markup(@ao_array)
         post
         publish
       end
diff --git a/lib/sisu/v5/xml_scaffold_structure_collapsed.rb b/lib/sisu/v5/xml_scaffold_structure_collapsed.rb
index a90207ff..9a095f4b 100644
--- a/lib/sisu/v5/xml_scaffold_structure_collapsed.rb
+++ b/lib/sisu/v5/xml_scaffold_structure_collapsed.rb
@@ -62,7 +62,7 @@
 module SiSU_XML_Scaffold_Structure_Collapse
   require_relative 'particulars'                        # particulars.rb
     include SiSU_Particulars
-  require_relative 'dal'                                # dal.rb
+  require_relative 'ao'                                 # ao.rb
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env
   class Source
@@ -73,8 +73,8 @@ module SiSU_XML_Scaffold_Structure_Collapse
     end
     def read
       begin
-        @md,@dal_array=@particulars.md,@particulars.dal_array
-        SiSU_XML_Scaffold_Structure_Collapse::Source::Scroll.new(@dal_array,@md).songsheet
+        @md,@ao_array=@particulars.md,@particulars.ao_array
+        SiSU_XML_Scaffold_Structure_Collapse::Source::Scroll.new(@ao_array,@md).songsheet
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
diff --git a/lib/sisu/v5/xml_scaffold_structure_sisu.rb b/lib/sisu/v5/xml_scaffold_structure_sisu.rb
index 64173566..2848187f 100644
--- a/lib/sisu/v5/xml_scaffold_structure_sisu.rb
+++ b/lib/sisu/v5/xml_scaffold_structure_sisu.rb
@@ -62,7 +62,7 @@
 module SiSU_XML_Scaffold_Structure_Sisu
   require_relative 'particulars'                        # particulars.rb
     include SiSU_Particulars
-  require_relative 'dal'                                # dal.rb
+  require_relative 'ao'                                 # ao.rb
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env
   class Source
@@ -73,8 +73,8 @@ module SiSU_XML_Scaffold_Structure_Sisu
     end
     def read
       begin
-        @md,@dal_array=@particulars.md,@particulars.dal_array
-        SiSU_XML_Scaffold_Structure_Sisu::Source::Scroll.new(@dal_array,@md).songsheet
+        @md,@ao_array=@particulars.md,@particulars.ao_array
+        SiSU_XML_Scaffold_Structure_Sisu::Source::Scroll.new(@ao_array,@md).songsheet
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
diff --git a/lib/sisu/v5/shared_xml.rb b/lib/sisu/v5/xml_shared.rb
index af9b0992..a6092559 100644
--- a/lib/sisu/v5/shared_xml.rb
+++ b/lib/sisu/v5/xml_shared.rb
@@ -50,7 +50,7 @@
 
  * 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/shared_xml.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/xml_shared.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
@@ -381,25 +381,25 @@ module SiSU_XML_Munge
           gsub(/<[-~]#>/,'').
           gsub(/href="#{Xx[:segment]}/m,'href="').
           gsub(/#{Mx[:lnk_o]}([^#{Mx[:lnk_o]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{Mx[:rel_c]}]+?)#{Mx[:lnk_c]}#{Mx[:rel_o]}(\.\.\/\S+?)#{Mx[:rel_c]}/,
-            '<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:href="\2">\1</link>').
+            '<link xmlns:xl="http://www.w3.org/1999/xlink" xl:type="simple" xl:href="\2">\1</link>').
           gsub(/#{Mx[:lnk_o]}([^#{Mx[:lnk_o]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{Mx[:rel_c]}]+?)#{Mx[:lnk_c]}#{Mx[:rel_o]}:(\S+?)#{Mx[:rel_c]}/,
-            '<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:href="../\2">\1</link>').
+            '<link xmlns:xl="http://www.w3.org/1999/xlink" xl:type="simple" xl:href="../\2">\1</link>').
           gsub(/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}#{Mx[:rel_o]}(\S+?)#{Mx[:rel_c]}/,
-            '<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:href="#\2">\1</link>').
+            '<link xmlns:xl="http://www.w3.org/1999/xlink" xl:type="simple" xl:href="#\2">\1</link>').
           gsub(/(?:^|[^_\\])#{Mx[:lnk_o]}[ ]*(\S+?\.(?:jpg|png|gif))[ ]+(\d+)x(\d+)(\s+[^}]+)?#{Mx[:lnk_c]}#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,
-            %{<image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:actuate="onLoad" xlink:show="embed" xlink:href="#{@md.file.output_path.xml.rel_image}/\\1" width="\\2" height="\\3" />[\\1] \\4}).
+            %{<image xmlns:xl="http://www.w3.org/1999/xlink" xl:type="simple" xl:actuate="onLoad" xl:show="embed" xl:href="#{@md.file.output_path.xml.rel_image}/\\1" width="\\2" height="\\3" />[\\1] \\4}).
           gsub(/(?:^|[^_\\])#{Mx[:lnk_o]}[ ]*(\S+?\.(?:jpg|png|gif))([ ]+[^}]+)?#{Mx[:lnk_c]}#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,
-            %{<image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:actuate="onLoad" xlink:show="embed" xlink:href="#{@md.file.output_path.xml.rel_image}/\\1"/>\\1}).
+            %{<image xmlns:xl="http://www.w3.org/1999/xlink" xl:type="simple" xl:actuate="onLoad" xl:show="embed" xl:href="#{@md.file.output_path.xml.rel_image}/\\1"/>\\1}).
           gsub(/(?:^|[^_\\])#{Mx[:lnk_o]}[ ]*(\S+?\.(?:jpg|png|gif))[ ]+(\d+)x(\d+)(\s+[^}]+)?#{Mx[:lnk_c]}image/,
-            %{<image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:actuate="onLoad" xlink:show="embed" xlink:href="#{@md.file.output_path.xml.rel_image}/\\1" width="\\2" height="\\3" />[\\1] \\4}).
+            %{<image xmlns:xl="http://www.w3.org/1999/xlink" xl:type="simple" xl:actuate="onLoad" xl:show="embed" xl:href="#{@md.file.output_path.xml.rel_image}/\\1" width="\\2" height="\\3" />[\\1] \\4}).
           gsub(/(?:^|[^_\\])#{Mx[:lnk_o]}[ ]*(\S+?\.(?:jpg|png|gif))([ ]+[^}]+)?#{Mx[:lnk_c]}image/,
-            %{<image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:actuate="onLoad" xlink:show="embed" xlink:href="#{@md.file.output_path.xml.rel_image}/\\1"/>\\1}).
+            %{<image xmlns:xl="http://www.w3.org/1999/xlink" xl:type="simple" xl:actuate="onLoad" xl:show="embed" xl:href="#{@md.file.output_path.xml.rel_image}/\\1"/>\\1}).
           gsub(/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,
-            '<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:href="\2">\1</link>'). #watch, compare html_tune
+            '<link xmlns:xl="http://www.w3.org/1999/xlink" xl:type="simple" xl:href="\2">\1</link>'). #watch, compare html_tune
           gsub(/#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,
-            %{#{@brace_url.xml_open}<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:href="\\1">\\1</link>#{@brace_url.xml_close}}).
+            %{#{@brace_url.xml_open}<link xmlns:xl="http://www.w3.org/1999/xlink" xl:type="simple" xl:href="\\1">\\1</link>#{@brace_url.xml_close}}).
           gsub(/#{Mx[:url_o]}_(\S+?)#{Mx[:url_c]}/,
-            '<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:href="\1">\1</link>') #escaped urls not linked, deal with later
+            '<link xmlns:xl="http://www.w3.org/1999/xlink" xl:type="simple" xl:href="\1">\1</link>') #escaped urls not linked, deal with later
       else
         dob.obj=dob.obj.gsub(/</m,'&lt;').gsub(/>/m,'&gt;')
       end
@@ -430,32 +430,63 @@ module SiSU_XML_Munge
       dob.obj=tidywords(wordlist).join(' ').strip
       dob
     end
-    def markup_fictionbook(dob='')
-      dob.obj.gsub(/~\{([\d*+]+).+?\}~/,'[\1]').
-        gsub(/\/\{(.+?)\}\//,'<i>\1</i>').
-        gsub(/[*!]\{(.+?)\}[*!]/,'<b>\1</b>').
-        gsub(/_\{(.+?)\}_/,'<u>\1</u>').
-        gsub(/-\{(.+?)\}-/,'<del>\1</del>').
-        gsub(/<br(?:\s*\/)?>/,'<br />').
-        gsub(/<:pb>\s*/,'').
-        gsub(/<[-~]#>/,'').
-        #temporary -->
-        gsub(/<:\S+?>/,'').
-        #<-- temporary
-        gsub(/<[-~]#>/,'').
+    def clean(str)
+      str=str.gsub(/#{Mx[:gl_o]}(#[0-9]{3})#{Mx[:gl_c]}/u,'&\1;').
+        gsub(/#{Mx[:gl_o]}#([a-z]{2,4})#{Mx[:gl_c]}/u,'&\1;')
+    end
+    def markup_fictionbook(str='',is='')
+      str=str.gsub(/#{Mx[:en_a_o]}([\d+*]+).+?#{Mx[:en_a_c]}/m,'<a xl:href="#footnote\1" type="note">[\1]</a>').
+        gsub(/&/,'&amp;'). #sort
+        gsub(/#{Mx[:mk_o]}#([a-zA-Z]+)#{Mx[:mk_c]}/,'&\1;').
         gsub(/(^|#{Mx[:gl_c]}|\s)&\s+/,'\1&amp; '). #sort
-        gsub(/&([^;]{1,5})/,'&amp;\1') #sort, rough estimate, revisit #WATCH found in node not sax
-        gsub(/(#{Mx[:lnk_o]}(\S+?\.(?:png|jpg|gif))[ ]+.+?#{Mx[:lnk_c]}(?:#{Mx[:url_o]}\S+?#{Mx[:url_c]}|image)/,
-          "<image.path>#{@md.file.output_path.xml.rel_image}\/\\1</image.path>").
-        gsub(/&nbsp;|#{Mx[:nbsp]}/,'&#160;')
-      wordlist=dob.obj.scan(/&[#0-9a-z]+;|\S+|\n/) #\n needed for tables, check though added 2005w17
-      dob.obj=tidywords(wordlist).join(' ').strip
+        gsub(/#{Mx[:mk_o]}(#[0-9]+)#{Mx[:mk_c]}/,'&\1;')
+      str=str.gsub(/#{Mx[:br_line]}|#{Mx[:br_nl]}/,'<br />') unless is==:table
+      str=str.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="#\1" />').
+        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 />')
+      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)
       dob
     end
     def markup_group(dob='')
       dob.obj=dob.obj.gsub(/</,'&lt;').gsub(/>/,'&gt;').
         gsub(/&lt;:?br(?:\s+\/)?&gt;/,'<br />').
-        gsub(/&lt;(link xmlns:xlink=".+?")&gt;/,'<\1>').
+        gsub(/&lt;(link xmlns:xl=".+?")&gt;/,'<\1>').
         gsub(/&lt;(\/link)&gt;/,'<\1>').
         gsub(/&lt;(\/?en)&gt;/,'<\1>')
       dob
@@ -463,7 +494,7 @@ module SiSU_XML_Munge
     def markup_block(dob='')
       dob.obj=dob.obj.gsub(/</,'&lt;').gsub(/>/,'&gt;').
         gsub(/&lt;:?br(?:\s+\/)?&gt;/,'<br />').
-        gsub(/&lt;(link xmlns:xlink=".+?")&gt;/,'<\1>').
+        gsub(/&lt;(link xmlns:xl=".+?")&gt;/,'<\1>').
         gsub(/&lt;(\/link)&gt;/,'<\1>').
         gsub(/&lt;(\/?en)&gt;/,'<\1>')
       dob