89 files changed, 5106 insertions, 1384 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 00000000..b5bf83df
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,7 @@
+# git ls-files --others --exclude-from=.git/info/exclude
+# Lines that start with '#' are comments.
+# For a project mostly in C, the following would be a good set of
+# exclude patterns (uncomment them if you want to use them):
+*~
+sisu-*.gem
+sisu*.gemspec
diff --git a/bin/sisu b/bin/sisu
index 7dcb09bb..0786500f 100644
--- a/bin/sisu
+++ b/bin/sisu
@@ -54,31 +54,35 @@ WOK
   $KCODE='u' if RUBY_VERSION < '1.9'
   argv=$*
   SiSU_called_from_directory=Dir.pwd
-  if $0 !~/\bsisu[45]$/
+  require 'rubygems'
+  check_sisu_stable_ruby_version?
+  if __FILE__ =~/gem/ \
+  and  __FILE__ =~/sisu-[45]\.\d+\.\d+/
+    SiSU_version_dir=(__FILE__ =~/sisu-5\.\d+\.\d+/) \
+    ? 'v5'
+    : 'v4'
+  elsif $0 !~/\b(?:sisu[45]|sisugem)$/
     SiSU_version_dir=case argv.inspect
     when /"(?:--v4)"/
-      check_sisu_stable_ruby_version?
       'v4'
     when /"(?:--v5)"/
-      check_sisu_stable_ruby_version?
       'v5'
-    when /"(?:--dev)"/
-      check_sisu_dev_ruby_version?
+    when /"--dev"/
       'v5'
     else
-      check_sisu_stable_ruby_version?
       'v4'
     end
   else
     SiSU_version_dir=case $0
     when /\bsisu4$/
-      check_sisu_stable_ruby_version?
       'v4'
     when /\bsisu5$/
-      check_sisu_stable_ruby_version?
       'v5'
+    when /sisugem$/  # should have been caught earlier, unused, debug check
+      SiSU_version_dir=(__FILE__ =~/sisu-5\.\d+\.\d+/) \
+      ? 'v5'
+      : 'v4'
     else
-      check_sisu_stable_ruby_version?
       'v4'
     end
   end
@@ -158,6 +162,7 @@ rescue
   STDERR.puts $!
   STDERR.puts $@
   require 'rbconfig'
+  require 'rubygems'
   e=Config::CONFIG
   puts %{
                    #{%x{ruby -v}.strip.to_s}
@@ -166,6 +171,8 @@ rescue
     ruby named:    #{e['ruby_version']}
     rubylib:       #{e['rubylibdir']}
     rubylib local: #{e['sitelibdir']}
+    gem dir:       #{Gem.dir}
+    gem path:      #{Gem.path}
   }
   system(%{echo "
     system RUBYPATH: ${RUBYPATH}
diff --git a/bin/sisugem b/bin/sisugem
new file mode 120000
index 00000000..b4999d51
--- /dev/null
+++ b/bin/sisugem
@@ -0,0 +1 @@
+sisu
\ No newline at end of file
diff --git a/data/doc/sisu/CHANGELOG_v4 b/data/doc/sisu/CHANGELOG_v4
index f540f185..7e451e0a 100644
--- a/data/doc/sisu/CHANGELOG_v4
+++ b/data/doc/sisu/CHANGELOG_v4
@@ -23,6 +23,35 @@ v2 branch is removed; it is available in sisu =< 3.3.2
 
 %% Reverse Chronological:
 
+%% 4.2.13.orig.tar.xz (2013-12-02:48/1)
+http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=shortlog;h=refs/tags/sisu_4.2.13
+http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=shortlog;h=refs/tags/debian/sisu_4.2.13-1
+http://www.jus.uio.no/sisu/pkg/src/sisu_4.2.13.orig.tar.xz
+  sisu_4.2.13.orig.tar.xz
+  sisu_4.2.13-1.dsc
+
+* rake create build & install sisu gemspec; bin/sisugem (add .gitignore)
+  * rake gemcbi #(create build install sisu gem)
+  * rake gemspecscreate && \
+    rake gembuild && \
+    sudo rake geminstall
+  * rake gemspecscreate && \
+    gem build sisu5.gemspec && \
+    sudo gem install --no-rdoc --no-ri \
+    sisu-5.1.0.gem
+  * bin/sisu updated (modified to take account of gems)
+  * bin/sisugem added
+  * .gitignore sisu-*.gem sisu*.gemspec
+    consider inclusion (& tracking) of rake created sisu4.gemspec sisu5.gemspec
+    (as this makes their availability more obvious)
+  * once gem is installed: "sisu _5.1.0_ -vM" (to see version, commands
+    otherwise as usual) if paths are such that sisu is not available
+    "sisugem _5.1.0_ -vM" should work (as it is installed by gemspec, but not
+    other sisu installers)
+
+* hub, sisu4 -M (maintenance mode) provide info as to path to hub.rb (i.e. where
+  library is being drawn)
+
 %% 4.2.12.orig.tar.xz (2013-11-08:44/5)
 http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=shortlog;h=refs/tags/sisu_4.2.12
 http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=shortlog;h=refs/tags/debian/sisu_4.2.12-1
diff --git a/data/doc/sisu/CHANGELOG_v5 b/data/doc/sisu/CHANGELOG_v5
index 398257ae..1403cb6f 100644
--- a/data/doc/sisu/CHANGELOG_v5
+++ b/data/doc/sisu/CHANGELOG_v5
@@ -23,6 +23,73 @@ v2 branch is removed; it is available in sisu =< 3.3.2
 
 %% Reverse Chronological:
 
+%% 5.1.0.orig.tar.xz (2013-12-02:48/1)
+http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=shortlog;h=refs/tags/sisu_5.1.0
+http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=shortlog;h=refs/tags/debian/sisu_5.1.0-1
+http://www.jus.uio.no/sisu/pkg/src/sisu_5.1.0.orig.tar.xz
+  sisu_5.1.0.orig.tar.xz
+  sisu_5.1.0-1.dsc
+
+* ao_doc_str, changes related to headings provided for document structure
+  without ocn, testing required
+
+* ao endnotes, removed a space that should no longer be necessary,
+  testing required
+
+* minor code related to line breaks, various locations
+
+* renaming of modules
+  * use AO instead of DAL
+
+* renaming of files
+  * ao*.rb instead of dal*.rb
+    ao (abstract objects) shorter, also easily searched, higher sort location
+    abstract as representation of & extraction of document objects
+    (dal (document abstraction layer))
+  * shared files e.g. shared_xml becomes xml_shared
+  * plaintext becomes txt_plain
+  * epub becomes xhtml_epub2
+  * odf becomes xml_odf_odt
+  * xml sax file renamed xml_sax.rb (from xml.rb)
+
+* new outputs under development, CONSTRUCTION_ZONE
+  * plaintext, smarttext
+    * textile
+    * asciidoc
+    * markdown
+    * rst
+  * xml
+    * docbook, book
+    * fictionbook
+
+* sisu.gemspec
+
+* xmlns xlink using xl
+
+* rake create build & install sisu gemspec; bin/sisugem (add .gitignore)
+  * rake gemcbi #(create build install sisu gem)
+  * rake gemspecscreate && \
+    rake gembuild && \
+    sudo rake geminstall
+  * rake gemspecscreate && \
+    gem build sisu5.gemspec && \
+    sudo gem install --no-rdoc --no-ri \
+    sisu-5.1.0.gem
+  * bin/sisu updated (modified to take account of gems)
+  * bin/sisugem added
+  * .gitignore sisu-*.gem sisu*.gemspec
+    consider inclusion (& tracking) of rake created sisu4.gemspec sisu5.gemspec
+    (as this makes their availability more obvious)
+  * once gem is installed: "sisu _5.1.0_ -vM" (to see version, commands
+    otherwise as usual) if paths are such that sisu is not available
+    "sisugem _5.1.0_ -vM" should work (as it is installed by gemspec, but not
+    other sisu installers)
+
+* hub, sisu5 -M (maintenance mode) provide info as to path to hub.rb (i.e. where
+  library is being drawn)
+
+* documentation related to commands for new outputs in development
+
 %% 5.0.25.orig.tar.xz (2013-11-08:44/5)
 http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=shortlog;h=refs/tags/sisu_5.0.25
 http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=shortlog;h=refs/tags/debian/sisu_5.0.25-1
diff --git a/data/doc/sisu/markup-samples/sisu_manual/en/sisu_commands.sst b/data/doc/sisu/markup-samples/sisu_manual/en/sisu_commands.sst
index 8e8926ad..2ca43a43 100644
--- a/data/doc/sisu/markup-samples/sisu_manual/en/sisu_commands.sst
+++ b/data/doc/sisu/markup-samples/sisu_manual/en/sisu_commands.sst
@@ -40,6 +40,9 @@ SiSU is a document publishing system, that from a simple single marked-up docume
 !_ -a [filename/wildcard] \\
 produces plaintext with Unix linefeeds and without markup, (object numbers are omitted), has footnotes at end of each paragraph that contains them [ -A for equivalent dos (linefeed) output file] [see -e for endnotes]. (Options include: --endnotes for endnotes --footnotes for footnotes at the end of each paragraph --unix for unix linefeed (default) --msdos for msdos linefeed)
 
+!_ --ao [filename/wildcard/url] \\
+assumed for most other flags, creates new intermediate files for processing (abstract objects, document abstraction) that is used in all subsequent processing of other output. This step is assumed for most processing flags. To skip it see -n. Alias -m. (sisu v5)
+
 !_ -b [filename/wildcard] \\
 see --xhtml
 
@@ -80,11 +83,14 @@ see --pg
 see --sqlite
 
 !_ --dal [filename/wildcard/url] \\
-assumed for most other flags, creates new intermediate files for processing (document abstraction) that is used in all subsequent processing of other output. This step is assumed for most processing flags. To skip it see -n. Alias -m
+assumed for most other flags, creates new intermediate files for processing (abstract objects, document abstraction) that is used in all subsequent processing of other output. This step is assumed for most processing flags. To skip it see -n. Renamed --ao (abstract objects) in sisu v5. Alias -m
 
 !_ --delete [filename/wildcard] \\
 see --zap
 
+!_ --docbook [filename/wildcard/url] \\
+docbook smart text (sisu v5)
+
 !_ --dump[=directory_path] [filename/wildcard] \\
 places output in directory specified, if none is specified in the current directory (pwd). Unlike using default settings HTML files have embedded css. Compare --redirect
 
@@ -117,6 +123,9 @@ see --sample-search-form
 !_ -f [optional string part of filename] \\
 see --find
 
+!_ --fictionbook [filename/wildcard/url] \\
+fictionbook smart text (sisu v5)
+
 !_ --find [optional string part of filename] \\
 without match string, glob all .sst .ssm files in directory (including language subdirectories). With match string, find files that match given string in directory (including language subdirectories). Alias -f, --glob, -G
 
@@ -188,6 +197,9 @@ see --dal (document abstraction level/layer)
 !_ --maintenance [filename/wildcard/url] \\
 maintenance mode, interim processing files are preserved and their locations indicated. (also see -V). Aliases -M and --keep-processing-files.
 
+!_ --markdown [filename/wildcard/url] \\
+markdown smart text (sisu v5)
+
 !_ --manpage [filename/wildcard] \\
 produces man page of file, not suitable for all outputs. Alias -i
 
@@ -279,6 +291,9 @@ see --scp
 !_ --redirect[=directory_path] [filename/wildcard] \\
 places output in subdirectory under specified directory, subdirectory uses the filename (without the suffix). If no output directory is specified places the subdirectory under the current directory (pwd). Unlike using default settings HTML files have embedded css. Compare --dump
 
+!_ --rst [filename/wildcard/url] \\
+ReST (rST restructured text) smart text (sisu v5)
+
 !_ --rsync [filename/wildcard] \\
 copies sisu output files to remote host using rsync. This requires that sisurc.yml has been provided with information on hostname and username, and that you have your "keys" and ssh agent in place. Note the behavior of rsync different if -R is used with other flags from if used alone. Alone the rsync --delete parameter is sent, useful for cleaning the remote directory (when -R is used together with other flags, it is not). Also see --scp. Alias -R
 
@@ -318,9 +333,24 @@ see --txt
 !_ --texinfo [filename/wildcard] \\
 produces texinfo and info file, (view with pinfo). Alias -I
 
+!_ --textile [filename/wildcard/url] \\
+textile smart text (sisu v5)
+
 !_ --txt [filename/wildcard] \\
 produces plaintext with Unix linefeeds and without markup, (object numbers are omitted), has footnotes at end of each paragraph that contains them [ -A for equivalent dos (linefeed) output file] [see -e for endnotes]. (Options include: --endnotes for endnotes --footnotes for footnotes at the end of each paragraph --unix for unix linefeed (default) --msdos for msdos linefeed). Alias -t
 
+!_ --txt-asciitext [filename/wildcard] \\
+see --asciitext
+
+!_ --txt-markdown [filename/wildcard] \\
+see --markdown
+
+!_ --txt-rst [filename/wildcard] \\
+see --rst
+
+!_ --txt-textile [filename/wildcard] \\
+see --textile
+
 !_ -U [filename/wildcard] \\
 see --urls
 
diff --git a/data/doc/sisu/markup-samples/sisu_manual/en/sisu_markup.sst b/data/doc/sisu/markup-samples/sisu_manual/en/sisu_markup.sst
index ddf6e570..69293637 100644
--- a/data/doc/sisu/markup-samples/sisu_manual/en/sisu_markup.sst
+++ b/data/doc/sisu/markup-samples/sisu_manual/en/sisu_markup.sst
@@ -1254,7 +1254,10 @@ If multiple sub-terms appear under one paragraph, they are separated under the m
 code{
 
   Paragraph containing main term, second term and sub-term.
-  ={Main term:sub-term+1|second sub-term}
+  ={Main term:
+      sub-term+2|second sub-term;
+    Another term
+   }
 
   A paragraph that continues discussion of the first sub-term
 
@@ -1267,6 +1270,7 @@ code{
   Main term, 1,
     sub-term, 1-3,
     second sub-term, 1,
+  Another term, 1
 
 }code
 
diff --git a/data/sisu/v4/v/version.yml b/data/sisu/v4/v/version.yml
index bc4a319b..08ef67b4 100644
--- a/data/sisu/v4/v/version.yml
+++ b/data/sisu/v4/v/version.yml
@@ -1,5 +1,5 @@
 ---
-:version: 4.2.12
-:date_stamp: 2013w44/5
-:date: "2013-11-08"
+:version: 4.2.13
+:date_stamp: 2013w48/1
+:date: "2013-12-02"
 :project: SiSU
diff --git a/data/sisu/v5/v/version.yml b/data/sisu/v5/v/version.yml
index 530acb56..52a05b4d 100644
--- a/data/sisu/v5/v/version.yml
+++ b/data/sisu/v5/v/version.yml
@@ -1,5 +1,5 @@
 ---
-:version: 5.0.25
-:date_stamp: 2013w44/5
-:date: "2013-11-08"
+:version: 5.1.0
+:date_stamp: 2013w48/1
+:date: "2013-12-02"
 :project: SiSU
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
diff --git a/man/man1/sisu.1 b/man/man1/sisu.1
index 71251228..a692a9f4 100644
--- a/man/man1/sisu.1
+++ b/man/man1/sisu.1
@@ -1,4 +1,4 @@
-.TH "sisu" "1" "2013-07-25" "4.1.8" "SiSU"
+.TH "sisu" "1" "2013-11-27" "5.1.0" "SiSU"
 .br
 .SH NAME
 .br
@@ -266,6 +266,12 @@ footnotes at end of each paragraph that contains them [ -A for equivalent dos
 endnotes --footnotes for footnotes at the end of each paragraph --unix for unix
 linefeed (default) --msdos for msdos linefeed)
 .TP
+.B --ao [filename/wildcard/url]
+assumed for most other flags, creates new intermediate files for processing
+(abstract objects, document abstraction) that is used in all subsequent
+processing of other output. This step is assumed for most processing flags. To
+skip it see -n. Alias -m. (sisu v5)
+.TP
 .B -b [filename/wildcard]
 see --xhtml
 .TP
@@ -322,13 +328,16 @@ see --sqlite
 .TP
 .B --dal [filename/wildcard/url]
 assumed for most other flags, creates new intermediate files for processing
-(document abstraction) that is used in all subsequent processing of other
-output. This step is assumed for most processing flags. To skip it see -n.
-Alias -m
+(abstract objects, document abstraction) that is used in all subsequent
+processing of other output. This step is assumed for most processing flags. To
+skip it see -n. Renamed --ao (abstract objects) in sisu v5. Alias -m
 .TP
 .B --delete [filename/wildcard]
 see --zap
 .TP
+.B --docbook [filename/wildcard/url]
+docbook smart text (sisu v5)
+.TP
 .B --dump[=directory_path] [filename/wildcard]
 places output in directory specified, if none is specified in the current
 directory (pwd). Unlike using default settings
@@ -368,6 +377,9 @@ see --sample-search-form
 .B -f [optional string part of filename]
 see --find
 .TP
+.B --fictionbook [filename/wildcard/url]
+fictionbook smart text (sisu v5)
+.TP
 .B --find [optional string part of filename]
 without match string, glob all .sst .ssm files in directory (including language
 subdirectories). With match string, find files that match given string in
@@ -457,6 +469,9 @@ see --dal (document abstraction level/layer)
 maintenance mode, interim processing files are preserved and their locations
 indicated. (also see -V). Aliases -M and --keep-processing-files.
 .TP
+.B --markdown [filename/wildcard/url]
+markdown smart text (sisu v5)
+.TP
 .B --manpage [filename/wildcard]
 produces man page of file, not suitable for all outputs. Alias -i
 .TP
@@ -597,6 +612,9 @@ subdirectory under the current directory (pwd). Unlike using default settings
 .I HTML
 files have embedded css. Compare --dump
 .TP
+.B --rst [filename/wildcard/url]
+ReST (rST restructured text) smart text (sisu v5)
+.TP
 .B --rsync [filename/wildcard]
 copies sisu output files to remote host using rsync. This requires that
 sisurc.yml has been provided with information on hostname and username, and
@@ -693,6 +711,9 @@ see --txt
 .B --texinfo [filename/wildcard]
 produces texinfo and info file, (view with pinfo). Alias -I
 .TP
+.B --textile [filename/wildcard/url]
+textile smart text (sisu v5)
+.TP
 .B --txt [filename/wildcard]
 produces
 .I plaintext
@@ -702,6 +723,18 @@ footnotes at end of each paragraph that contains them [ -A for equivalent dos
 endnotes --footnotes for footnotes at the end of each paragraph --unix for unix
 linefeed (default) --msdos for msdos linefeed). Alias -t
 .TP
+.B --txt-asciitext [filename/wildcard]
+see --asciitext
+.TP
+.B --txt-markdown [filename/wildcard]
+see --markdown
+.TP
+.B --txt-rst [filename/wildcard]
+see --rst
+.TP
+.B --txt-textile [filename/wildcard]
+see --textile
+.TP
 .B -U [filename/wildcard]
 see --urls
 .TP
@@ -1596,7 +1629,7 @@ normal text [^**] continues
 .nf
 normal text ~[* editors notes, numbered asterisk footnote/endnote series ]~ continues
 
-normal text ~[+ editors notes, numbered asterisk footnote/endnote series ]~ continues
+normal text ~[+ editors notes, numbered plus symbol footnote/endnote series ]~ continues
 .fi
 
 .BR
@@ -1855,7 +1888,7 @@ information in each column
 
 .BR
 .B markup example:
-[^17]
+[^18]
 .nf
 !_ Table 3.1: Contributors to Wikipedia, January 2001 - June 2005
 
@@ -2257,7 +2290,7 @@ its own:
 page new =\e= or breaks the page, starts a new page.
 
 .BR
-page break -\\- or breaks a column, starts a new column, if using columns,
+page break -\e- or breaks a column, starts a new column, if using columns,
 else breaks the page, starts a new page.
 
 .BR
@@ -2335,7 +2368,10 @@ If multiple sub-terms appear under one paragraph, they are separated under the
 main term heading from each other by a pipe symbol.
 .nf
   Paragraph containing main term, second term and sub-term.
-  ={Main term:sub-term+1|second sub-term}
+  ={Main term:
+      sub-term+2|second sub-term;
+    Another term
+   }
 
   A paragraph that continues discussion of the first sub-term
 .fi
@@ -2347,6 +2383,7 @@ additional paragraph. The logical structure of the resulting index would be:
   Main term, 1,
     sub-term, 1-3,
     second sub-term, 1,
+  Another term, 1
 .fi
 
 .SH COMPOSITE DOCUMENTS MARKUP
@@ -2384,7 +2421,36 @@ The form described above should be relied on. Within the
 .I Vim
 editor it results in the text thus linked becoming hyperlinked to the document
 it is calling in which is convenient for editing.
+.SH SUBSTITUTIONS
+
+
+.BR
+
+.B markup example:
+.nf
+The current Debian is ${debian_stable} the next debian will be ${debian_testing}
 
+Configure substitution in _sisu/sisu_document_make
+
+@make:
+:substitute: /${debian_stable}/,'*{Wheezy}*' /${debian_testing}/,'*{Jessie}*'
+.fi
+
+
+.BR
+
+.B resulting output:
+
+.BR
+The current
+.B Debian
+is
+.B Wheezy
+the next debian will be
+.B Jessie
+
+.BR
+Configure substitution in _sisu/sisu_document_make
 .SH SISU FILETYPES
 
 .BR
@@ -2668,8 +2734,7 @@ supported by XeTeX polyglosia.
 .SH GENERAL DIRECTORIES
 
 .nf
- ./subject_name/
-
+\./subject_name/
 % files stored at this level e.g. sisu_manual.sst or
 % for sisu v3 may be under language sub-directories
 % e.g.
@@ -3788,7 +3853,7 @@ editors notes, numbered asterisk footnote/endnote series
 .BR
 .TP
 .BI +2.
-editors notes, numbered asterisk footnote/endnote series
+editors notes, numbered plus symbol footnote/endnote series
 
 .BR
 .TP
diff --git a/rbuild b/rbuild
index 084d3ad7..f2cc6638 100644
--- a/rbuild
+++ b/rbuild
@@ -147,15 +147,17 @@ def chmod_util(place)
   end
 end
                                                            #%% using a directory and its mapping
-def setup_find_create(dir_get,dir_put)                     #primary,
+def setup_find_create(dir_get,dir_put,exclude_files=[''])                     #primary,
   Find.find("#{@p.dir.pwd}/#{dir_get}") do |f|
     stub=f.scan(/#{@p.dir.pwd}\/#{dir_get}\/(\S+)/).join
     place="#{dir_put}/#{stub}"
     action=case
     when File.file?(f)
-      cp(f,place)
-      chmod_file(place)
-      "->  #{dir_put}/"
+      unless f =~/#{exclude_files.inspect}/
+        cp(f,place)
+        chmod_file(place)
+        "->  #{dir_put}/"
+      end
     when File.directory?(f)
       FileUtils.mkpath(place) unless FileTest.directory?(place)
       "./#{dir_get}/"
@@ -202,6 +204,212 @@ def system_info
 
 WOK
 end
+def sisu_version_info
+  def version_file
+    def v4
+      'data/sisu/v4/v/version.yml'
+      #"#{Dir.pwd}/data/sisu/v4/v/version.yml"
+    end
+    def v5
+      'data/sisu/v5/v/version.yml'
+    end
+    self
+  end
+  def v4
+    v="#{Dir.pwd}/#{version_file.v4}"
+    if File.exist?(v)
+      YAML::load(File::open(v))
+    else ''
+    end
+  end
+  def v5
+    v="#{Dir.pwd}/#{version_file.v5}"
+    if File.exist?(v)
+      YAML::load(File::open(v))
+    else ''
+    end
+  end
+  def current
+    puts v4
+    puts v5
+  end
+  def system_date
+    `date "+%Y-%m-%d"`.strip
+  end
+  def system_date_stamp
+    `date "+%Yw%W/%u"`.strip
+  end
+  def set
+    def v4
+      {
+        project:        'SiSU',
+        version:        '4.2.13',
+        date:           "#{system_date}",
+        date_stamp:     "#{system_date_stamp}",
+      }
+    end
+    def v5
+      {
+        project:        'SiSU',
+        version:        '5.0.26',
+        date:           "#{system_date}",
+        date_stamp:     "#{system_date_stamp}",
+      }
+    end
+    def version_info_commit(filename,versioninfo,newversioninfo,existingversioninfo,version_file_is)
+      ans=%{update sisu version info replacing:
+  #{existingversioninfo.sort}
+with:
+  #{newversioninfo.sort}
+
+#{version_file_is} becoming:
+#{versioninfo}
+proceed? }
+      resp=answer?(ans)
+      exit unless resp
+      fn="#{Dir.pwd}/#{filename}"
+      if File.writable?("#{Dir.pwd}/.")
+        file_version=File.new(fn,'w+')
+        file_version << versioninfo
+        file_version.close
+      else
+        puts %{*WARN* is the file or directory writable? could not create #{filename}}
+      end
+    end
+    def commit_v4
+      versioninfo= <<-WOK
+---
+:version: #{sisu_version_info.v4[:version]}
+:date_stamp: #{sisu_version_info.v4[:date_stamp]}
+:date: "#{sisu_version_info.v4[:date]}"
+:project: #{sisu_version_info.v4[:project]}
+      WOK
+      puts version_file.v4
+      version_info_commit(version_file.v4,versioninfo,set.v4,sisu_version_info.v4,version_file.v4)
+    end
+    def commit_v5
+      versioninfo= <<-WOK
+---
+:version: #{sisu_version_info.v5[:version]}
+:date_stamp: #{sisu_version_info.v5[:date_stamp]}
+:date: "#{sisu_version_info.v5[:date]}"
+:project: #{sisu_version_info.v5[:project]}
+      WOK
+      puts version_file.v5
+      version_info_commit(version_file.v5,versioninfo,set.v5,sisu_version_info.v5,version_file.v5)
+    end
+    def date_info
+    end
+    def changelog_header
+      def v4
+        <<-WOK
+%% #{sisu_version_info.v4[:version]}.orig.tar.xz (#{sisu_version_info.v4[:date]}:#{sisu_version_info.v4[:date_stamp]})
+http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=shortlog;h=refs/tags/sisu_#{sisu_version_info.v4[:version]}
+http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=shortlog;h=refs/tags/debian/sisu_#{sisu_version_info.v4[:version]}-1
+http://www.jus.uio.no/sisu/pkg/src/sisu_#{sisu_version_info.v4[:version]}.orig.tar.xz
+  sisu_#{sisu_version_info.v4[:version]}.orig.tar.xz
+  sisu_#{sisu_version_info.v4[:version]}-1.dsc
+        WOK
+      end
+      def v5
+        <<-WOK
+%% #{sisu_version_info.v5[:version]}.orig.tar.xz (#{sisu_version_info.v5[:date]}:#{sisu_version_info.v5[:date_stamp]})
+http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=shortlog;h=refs/tags/sisu_#{sisu_version_info.v5[:version]}
+http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=shortlog;h=refs/tags/debian/sisu_#{sisu_version_info.v5[:version]}-1
+http://www.jus.uio.no/sisu/pkg/src/sisu_#{sisu_version_info.v5[:version]}.orig.tar.xz
+  sisu_#{sisu_version_info.v5[:version]}.orig.tar.xz
+  sisu_#{sisu_version_info.v5[:version]}-1.dsc
+        WOK
+      end
+      self
+    end
+    self
+  end
+  self
+end
+def version_update_manual
+  puts 'date:       ' + `date "+%Y-%m-%d"`
+  puts 'date_stamp: ' + `date "+%Yw%W/%u"`
+end
+def gemspecs
+  def sisu4
+    <<-WOK
+Gem::Specification.new do |s|
+  s.name           = '#{sisu_version_info.v4[:project].downcase}'
+  s.version        = '#{sisu_version_info.v4[:version]}'
+  s.date           = '#{sisu_version_info.v4[:date]}'
+  s.summary        = '#{sisu_version_info.v4[:project]}'
+  s.description    = 'SiSU gem'
+  s.authors        = ["Ralph Amissah"]
+  s.email          = 'ralph.amissah@gmail.com'
+  s.files          = Dir['lib/sisu/v4/*.rb'] +
+                     Dir['lib/sisu/v5/*.rb'] +
+                     Dir['data/sisu/v4/v/version.yml'] +
+                     Dir['data/sisu/v5/v/version.yml'] +
+                     Dir['bin/sisugem'] +
+                     Dir['bin/sisu']
+  s.license        = 'GPL3'
+  s.executables << 'sisugem' << 'sisu'
+end
+    WOK
+  end
+  def sisu5
+    <<-WOK
+Gem::Specification.new do |s|
+  s.name           = '#{sisu_version_info.v5[:project].downcase}'
+  s.version        = '#{sisu_version_info.v5[:version]}'
+  s.date           = '#{sisu_version_info.v5[:date]}'
+  s.summary        = '#{sisu_version_info.v5[:project]}'
+  s.description    = 'SiSU gem'
+  s.authors        = ["Ralph Amissah"]
+  s.email          = 'ralph.amissah@gmail.com'
+  s.files          = Dir['lib/sisu/v4/*.rb'] +
+                     Dir['lib/sisu/v5/*.rb'] +
+                     Dir['data/sisu/v4/v/version.yml'] +
+                     Dir['data/sisu/v5/v/version.yml'] +
+                     Dir['bin/sisugem'] +
+                     Dir['bin/sisu']
+  s.license        = 'GPL3'
+  s.executables << 'sisugem' << 'sisu'
+end
+    WOK
+  end
+  def gemspec_create(filename,gemspec)
+    fn="#{Dir.pwd}/#{filename}"
+    if File.writable?("#{Dir.pwd}/.")
+      file_sisu_gemspec=File.new(fn,'w+')
+      file_sisu_gemspec << gemspec
+      file_sisu_gemspec.close
+    else
+      puts %{*WARN* is the file or directory writable? could not create #{filename}}
+    end
+  end
+  def sisu4_gemspec_create
+    filename='sisu4.gemspec'
+    gemspec_create(filename,sisu4)
+  end
+  def sisu5_gemspec_create
+    filename='sisu5.gemspec'
+    gemspec_create(filename,sisu5)
+  end
+  def sisu4_build
+    system(%{ gem build sisu4.gemspec })
+  end
+  def sisu5_build
+    system(%{ gem build sisu5.gemspec })
+  end
+  def sisu4_install
+    system(%{
+      sudo gem install --no-rdoc --no-ri --verbose sisu-#{sisu_version_info.v4[:version]}.gem
+    })
+  end
+  def sisu5_install
+    system(%{
+      sudo gem install --no-rdoc --no-ri --verbose sisu-#{sisu_version_info.v5[:version]}.gem
+    })
+  end
+  self
+end
 def project_help
   puts <<WOK
 
@@ -234,10 +442,10 @@ For a more detailed and up to date list of command options use:
 WOK
 end
 def tasks
-  sys('rant -T')
+  system('rake -T')
 end
-                                                           #% tasks
-desc "rake/rant (as root type 'rake' or 'rant' for default action)"
+#% tasks
+desc "rake/rant sisu install (as root type 'rake' or 'rant')"
 task :default => [:default_notice,:setup_base]
 #task :default => [:help,:notice,:project]
 desc "Setup/Install #{@p.name} and try generate a file"
@@ -248,6 +456,24 @@ desc "Setup/Install #{@p.name}: bin, lib and conf (no data)"
 task :setup_base=> [:setup_bin,:setup_lib,:setup_conf,:setup_share,:setup_man,:setup_vim]
 desc "Setup/Install #{@p.name} bin, lib and conf (no data and no attempt to do postinstall setup)"
 task :base=> [:setup_base]
+desc "check package version"
+task :sisuversion => [:sisu_version]
+desc "set package version"
+task :sisuversionset => [:sisu_version_set]
+desc "check gempsec info"
+task :gemspec => [:gemspec_info]
+desc "create gempsec"
+task :gemspecscreate => [:gemspecs_create]
+desc "build gem"
+task :gembuild => [:gem_build]
+desc "install gem"
+task :geminstall => [:gem_install]
+desc "build and install gem"
+task :gembuildinstall => [:gem_build,:gem_install]
+desc "create, build and install sisu gem"
+task :gemcbi => [:gemspecs_create,:gem_build,:gem_install]
+desc "check changelog headers"
+task :changelogheaders => [:changelog_headers]
 if File.directory?('bin')                                       #bin
   desc "Setup #{@p.name} bin only, synonym :bin"
   task :bin => [:setup_bin]
@@ -297,10 +523,6 @@ if File.directory?('conf')                                      #conf
   desc "Remove #{@p.name} conf only"                      #remove conf
   task :remove_conf => [:remove_conf]
 end
-#if File.directory?('data')                                      #data
-#  desc "Remove #{@p.name} data only"                      #remove data
-#  task :remove_data => [:remove_data]
-#end
 desc "Re-setup #{@p.name}, synonym :reinstall"            #resetup reinstall
 task :resetup => [:remove, :setup]
 task :reinstall => [:remove, :setup]
@@ -345,8 +567,6 @@ task :help => [:project_help,:system_info,:tasks]
 #desc "Setup/Install #{@p.name} (uses filelist)"
 task :install => [:default_notice,:project]
 task :install_bin => [:setup_bin]
-desc '[make rant independent install file]'
-task :create_rant_independent_task_file => [:rant_independence]
                                                            #%% setup/install tasks
 task :rant_independence do                                 #notice
   resp=''
@@ -381,7 +601,8 @@ task :default2 do                                     #secondary
   setup_find_cp_r('man',@p.dir.man) if File.directory?('man')
 end
 task :setup_bin do                                         #bin
-  setup_find_create('bin',@p.dir.bin) if File.directory?('bin')
+  exclude_files=['sisugem']
+  setup_find_create('bin',@p.dir.bin,exclude_files) if File.directory?('bin')
 end
 task :setup_lib do                                         #lib
   setup_find_create('lib',@p.dir.lib) if File.directory?('lib')
@@ -402,6 +623,50 @@ end
 task :setup_vim do                                         #man
   setup_find_create('data/vim',@p.dir.vim) if File.directory?('data/vim') #man pages
 end
+task :gemspec_info do                                         #man
+  version_update_manual
+  gemspecs.sisu4
+  gemspecs.sisu5
+end
+task :gemspecs_create do                                         #man
+  gemspecs.sisu4_gemspec_create
+  gemspecs.sisu5_gemspec_create
+end
+task :gem_build do                                         #man
+  gemspecs.sisu4_build
+  gemspecs.sisu5_build
+end
+task :gem_install do                                         #man
+  gemspecs.sisu4_install
+  gemspecs.sisu5_install
+end
+task :changelog_headers do                                         #man
+  puts '---'
+  puts sisu_version_info.set.changelog_header.v4
+  puts '---'
+  puts sisu_version_info.set.changelog_header.v5
+end
+task :sisu_version do                                         #man
+  puts sisu_version_info.set.v4
+  puts sisu_version_info.set.v5
+  puts sisu_version_info.current
+  #version.current.each do |x|
+  #  puts x
+  #end
+  puts sisu_version_info.v4[:project]
+  puts sisu_version_info.v4[:version]
+  puts sisu_version_info.v4[:date]
+  puts sisu_version_info.v4[:date_stamp]
+  puts '---'
+  puts sisu_version_info.v5[:project]
+  puts sisu_version_info.v5[:version]
+  puts sisu_version_info.v5[:date]
+  puts sisu_version_info.v5[:date_stamp]
+end
+task :sisu_version_set do                                         #man
+  sisu_version_info.set.commit_v4
+  sisu_version_info.set.commit_v5
+end
                                                            #%% post install
                                                            #%% clobber/remove tasks
 task :remove_bin do