v5: renaming files & modules ao & AO (from dal & DAL)

* ao (abstract objects) shorter, also easily searched, higher sort location
  abstract as representation of & extraction of document objects
  (dal (document abstraction layer))

1 files changed, 1427 insertions, 0 deletions

diff --git a/lib/sisu/v5/ao_doc_str.rb b/lib/sisu/v5/ao_doc_str.rb
new file mode 100644
index 00000000..465a5666
--- /dev/null
+++ b/lib/sisu/v5/ao_doc_str.rb
@@ -0,0 +1,1427 @@
+# 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/ao_doc_str.rb;hb=HEAD>
+
+ * Ralph Amissah
+   <ralph@amissah.com>
+   <ralph.amissah@gmail.com>
+
+ ** Description: document abstraction
+
+=end
+module SiSU_AO_DocumentStructureExtract
+  class Instantiate < SiSU_Param::Parameters::Instructions
+    @@flag={
+      ocn:      :on,
+      code:     :off,
+      poem:     :off,
+      block:    :off,
+      group:    :off,
+      alt:      :off,
+      table:    :off,
+      table_to: :off,
+    }
+    def initialize
+      @@counter=@@column=@@columns=0
+      @@line_mode=''
+    end
+  end
+  class Build
+    @@flag={
+      ocn:      :on,
+      code:     :off,
+      poem:     :off,
+      block:    :off,
+      group:    :off,
+      alt:      :off,
+      table:    :off,
+      table_to: :off,
+    }
+    def initialize(md,data)
+      @md,@data=md,data
+      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
+      when /A/; 1
+      when /B/; 2
+      when /C/; 3
+      when /1/; 4
+      when /2/; 5
+      when /3/; 6
+      when /4/; 7
+      when /5/; 8
+      when /6/; 9
+      end
+    end
+    def image_test(str)
+      str=~/\{\s*\S+?\.png.+?\}https?:\/\/\S+/ \
+      ? true
+      : false
+    end
+    def bullet_test(str)
+      (str=~/\*/) \
+      ? true
+      : false
+    end
+    def hang_and_indent_test(str)
+      hang_indent=if str=~/^_([1-9])[^_]/
+        [$1,$1]
+      elsif str=~/^__([1-9])/
+        [0,$1]
+      elsif str=~/^_([0-9])_([0-9])/
+        [$1,$2]
+      else
+        [0,0]
+      end
+      hang,indent=hang_indent[0],hang_indent[1]
+      [hang,indent]
+    end
+    def hang_and_indent_def_test(str1,str2)
+      hang_indent=if str1=~/^_([1-9])[^_]/
+        [$1,$1]
+      elsif str1=~/^__([1-9])/
+        [0,$1]
+      elsif str1=~/^_([0-9])_([0-9])/
+        [$1,$2]
+      else
+        [0,0]
+      end
+      obj=if str2 =~/^(.+?)\s+\\\\(?:\s+|\n)/
+        str2.gsub(/^(.+?)(\s+\\\\(?:\s+|\n))/,"#{Mx[:fa_bold_o]}\\1#{Mx[:fa_bold_c]}\\2")
+      else
+        str2.gsub(/^(.+?)\n/,"#{Mx[:fa_bold_o]}\\1#{Mx[:fa_bold_c]}\n")
+      end
+      hang,indent=hang_indent[0],hang_indent[1]
+      [hang,indent,obj]
+    end
+    def endnote_test?(str)
+      (str=~/~\{.+?\}~|~\[.+?\]~/) \
+      ? true
+      : false
+    end
+    def extract_tags(str,nametag=nil)
+      tags=[]
+      if str.nil?
+      else
+        if str =~/(?:^|[ ])\*~([a-z0-9._-]+)(?=[ #{Mx[:br_nl]}]|$)/
+          str=str.gsub(/(^|[ ])\*~([a-z0-9._-]+)(?=[ #{Mx[:br_nl]}]|$)/i,
+              "\\1#{Mx[:tag_o]}\\2#{Mx[:tag_c]}").
+            gsub(/ [ ]+/i,' ')
+          tags=str.scan(/#{Mx[:tag_o]}(\S+?)#{Mx[:tag_c]}/).flatten
+          str=str.gsub(/[ ]?#{Mx[:tag_o]}\S+?#{Mx[:tag_c]}[ ]?/,' ') #may be issues with spaces would leave one, but "code" blocks?
+        end
+        tags=nametag ? (tags << nametag) : tags
+      end
+      [str,tags]
+    end
+    def rgx_idx_ocn_seg
+      @rgx_idx_ocn_seg=/(.+?)\s*[+](\d+)/
+    end
+    def construct_idx_array_and_hash(idxraw)
+      idx_array_raw=idxraw.scan(/[^;]+/)
+      idx_hash,idx_array,idx_lst={},[],[]
+      idx_array_raw.each do |idx|
+        idx_lst=case idx
+        when /\S+?\s*:/
+          idx_couplet_tmp=[]
+          idx_couplet=idx.scan(/\s*[^:]+\s*/)
+          if idx_couplet[1] =~/[|]/
+            idx_couplet_tmp << idx_couplet[0] << idx_couplet[1].scan(/\s*[^|]+\s*/)
+          else
+            idx_couplet_tmp << idx_couplet[0] << [idx_couplet[1]]
+          end
+          idx_couplet=idx_couplet_tmp
+        else [idx]
+        end
+        term_nodes=[]
+        idx_lst.each do |term_node|
+          case term_node
+          when String
+            term_node=term_node[0].chr.capitalize + term_node[1,term_node.length]
+            term_node=(term_node =~/.+?[+]\d+/) \
+            ? term_node
+            : (term_node + '+0')
+            term_nodes << term_node
+            use,plus=rgx_idx_ocn_seg.match(term_node)[1,2]
+            @use=use.strip
+            idx_hash[@use]={ sub: [], plus: plus } unless idx_hash[@use] and defined? idx_hash[@use]
+          when Array
+            subterm_nodes=[]
+            term_node.each do |subterm_node|
+              subterm_node=(subterm_node =~/.+?[+]\d+/) \
+              ? subterm_node
+              : (subterm_node + '+0')
+              subterm_nodes << subterm_node
+              sub,sub_plus=rgx_idx_ocn_seg.match(subterm_node)[1,2]
+              idx_hash[@use]={ sub: [], plus: 0 } unless idx_hash[@use] and defined? idx_hash[@use]
+              idx_hash[@use][:sub] << {sub.strip => { plus: sub_plus }}
+            end
+            term_nodes << subterm_nodes
+          end
+        end
+        idx_array << term_nodes
+      end
+      { hash: idx_hash, array: idx_array }
+    end
+    def identify_parts
+      tuned_file=[]
+      @tuned_block,@tuned_code=[],[]
+      @@counter,@verse_count=0,0
+      @metadata={}
+      @data.each do |t_o|
+        if t_o =~/^--([+~-])[#]$/
+          h=case $1
+          when /[+]/
+            @@flag[:ocn]=:on
+            {flag: :ocn_on}
+          when /[~]/
+            @@flag[:ocn]=:off_headings_substantive
+            {flag: :ocn_off, mod: :headings_substantive}
+          when /[-]/
+            @@flag[:ocn]=:off_headings_exclude
+            {flag: :ocn_off, mod: :headings_exclude}
+          else
+            @@flag[:ocn]=:on
+            {flag: :ocn_on}
+          end
+          t_o=SiSU_AO_DocumentStructure::ObjectFlag.new.flag_ocn(h)
+          next
+        end
+        t_o=t_o.gsub(/(?:\n\s*\n)+/m,"\n") if @@flag[:code]==:off
+        if t_o !~/^(?:code|poem|alt|group|block)\{|^\}(?:code|poem|alt|group|block)|^(?:table\{|\{table)[ ~]/ \
+        and t_o !~/^[`]{3}\s+(?:code|poem|alt|group|block|table)|^[`]{3}(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/ \
+        and @@flag[:code]==:off \
+        and @@flag[:poem]==:off \
+        and @@flag[:group]==:off \
+        and @@flag[:block]==:off \
+        and @@flag[:alt]==:off \
+        and @@flag[:table]==:off
+          unless t_o =~/^(?:@\S+?:|%+)\s/                  # extract book index for paragraph if any
+            idx=if t_o=~/^=\{(.+)\}\s*$\Z/m; m=$1
+              m=m.split(/\n/).join(' ').
+                gsub(/\s+([|:;])\s+/,'\1').
+                gsub(/\s+([+]\d+)\s+/,'\1')
+              t_o=t_o.gsub(/\n=\{.+\}\s*$\Z/m,'')
+              idx_array_and_hash=construct_idx_array_and_hash(m)
+              idx_array_and_hash[:hash]
+            else nil
+            end
+          end
+          t_o=case t_o
+          when /^#{Mx[:meta_o]}\S+?#{Mx[:meta_c]}/                                 #metadata, header
+            if t_o=~/^#{Mx[:meta_o]}(\S+?)#{Mx[:meta_c]}\s*(.+)/m
+              tag,obj=$1,$2
+              @metadata[tag]=obj
+            end
+            t_o=nil
+          when /^%+\s/                                     #comment
+            t_o=if t_o=~/^%+\s+(.+)/
+              h={obj: $1}
+              SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
+            else nil
+            end
+          when /^:?([A-C1-6])\~/                           #heading / lv
+            lv=$1
+            ln=ln_get(lv)
+            t_o=if t_o=~/^:?[A-C1-6]\~\s+(.+)/m
+              obj=$1
+              note=endnote_test?(obj)
+              obj,tags=extract_tags(obj)
+              if @@flag[:ocn]==:off_headings_exclude \
+              or @@flag[:ocn]==:off_headings_substantive
+                unless obj =~ /[~-][#]\s*$/
+                  if @@flag[:ocn]==:off_headings_exclude
+                    obj << ' -#'
+                  elsif @@flag[:ocn]==:off_headings_substantive
+                    obj << ' ~#'
+                  end
+                end
+              end
+              h={ lv: lv, ln: ln, obj: obj, idx: idx, tags: tags }
+              SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
+            elsif t_o=~/^:?[A-C1-6]\~(\S+?)-\s+(.+)/m
+              name,obj=$1,$2
+              note=endnote_test?(obj)
+              obj,tags=extract_tags(obj)
+              if @@flag[:ocn]==:off_headings_exclude \
+              or @@flag[:ocn]==:off_headings_substantive
+                unless obj =~ /[~-][#]\s*$/
+                  if @@flag[:ocn]==:off_headings_exclude
+                    obj << ' -#'
+                  elsif @@flag[:ocn]==:off_headings_substantive
+                    obj << ' ~#'
+                  end
+                end
+              end
+              h={ lv: lv, name: name, obj: obj, idx: idx, autonum_: false, tags: tags}
+              SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
+            elsif t_o=~/^:?[A-C1-6]\~(\S+)\s+(.+)/m
+              name,obj=$1,$2
+              note=endnote_test?(obj)
+              obj,tags=extract_tags(obj,name)
+              if @@flag[:ocn]==:off_headings_exclude \
+              or @@flag[:ocn]==:off_headings_substantive
+                unless obj =~ /[~-][#]\s*$/
+                  if @@flag[:ocn]==:off_headings_exclude
+                    obj << ' -#'
+                  elsif @@flag[:ocn]==:off_headings_substantive
+                    obj << ' ~#'
+                  end
+                end
+              end
+              h={ lv: lv, name: name, obj: obj, idx: idx, tags: tags }
+              SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
+            else nil
+            end
+          when /^_(?:[1-9]!?|[1-9]?\*)\s+/                  #indented and/or bullet paragraph
+            t_o=if t_o=~/^(_(?:[1-9]?\*|[1-9]!?)\s+)(.+)/m
+              tst,obj=$1,$2
+              if t_o=~/^_[1-9]!\s+.+/m
+                hang,indent,obj=hang_and_indent_def_test(tst,obj)
+              else
+                hang,indent=hang_and_indent_test(tst)
+              end
+              bullet=bullet_test(tst)
+              image=image_test(obj)
+              note=endnote_test?(obj)
+              obj,tags=extract_tags(obj)
+              unless obj=~/\A\s*\Z/m
+                if @@flag[:ocn]==:off_headings_exclude \
+                or @@flag[:ocn]==:off_headings_substantive
+                  unless obj =~ /[~-][#]\s*$/
+                    obj << ' ~#'
+                  end
+                end
+                h={ bullet_: bullet, hang: hang, indent: indent, obj: obj, idx: idx, note_: note, image_: image, tags: tags }
+                SiSU_AO_DocumentStructure::ObjectPara.new.paragraph(h)
+              end
+            else nil
+            end
+          when /^_[0-9]?_[0-9]!?\s+/                  #hanging indent paragraph
+            t_o=if t_o=~/^(_[0-9]?_[0-9]!?\s+)(.+)/m
+              tst,obj=$1,$2
+              if t_o=~/^_[0-9]?_[0-9]!\s+.+/m
+                hang,indent,obj=hang_and_indent_def_test(tst,obj)
+              else
+                hang,indent=hang_and_indent_test(tst)
+              end
+              image=image_test(obj)
+              note=endnote_test?(obj)
+              obj,tags=extract_tags(obj)
+              unless obj=~/\A\s*\Z/m
+                if @@flag[:ocn]==:off_headings_exclude \
+                or @@flag[:ocn]==:off_headings_substantive
+                  unless obj =~ /[~-][#]\s*$/
+                    obj << ' ~#'
+                  end
+                end
+                h={ hang: hang, indent: indent, obj: obj, idx: idx, note_: note, image_: image, tags: tags }
+                SiSU_AO_DocumentStructure::ObjectPara.new.paragraph(h)
+              end
+            else nil
+            end
+          when /^<(?:br)?:(?:pa?r|o(?:bj|---)?)>\s*$/      #[br:par] #[br:obj]
+            SiSU_AO_DocumentStructure::ObjectLayout.new.break(Hx[:br_obj])
+          when /^(?:-\\\\-|<:pb>)\s*$/                                #[br:pg]
+            SiSU_AO_DocumentStructure::ObjectLayout.new.break(Hx[:br_page],:markup)
+          when /^(?:=\\\\=|<:pn>)\s*$/                                #[br:pgn]
+            SiSU_AO_DocumentStructure::ObjectLayout.new.break(Hx[:br_page_new],:markup)
+          when /^-\.\.-\s*$/                                          #[br:pgl]
+            SiSU_AO_DocumentStructure::ObjectLayout.new.break(Hx[:br_page_line],:markup)
+          else                                             #paragraph
+            image=image_test(t_o)
+            note=endnote_test?(t_o)
+            obj,tags=extract_tags(t_o)
+            if @@flag[:ocn]==:off_headings_exclude \
+            or @@flag[:ocn]==:off_headings_substantive
+              unless obj =~ /[~-][#]\s*$/
+                obj << ' ~#'
+              end
+            end
+            unless obj=~/\A\s*\Z/m
+              h={ bullet_: false, indent: 0, hang: 0, obj: obj, idx: idx, note_: note, image_: image, tags: tags }
+              SiSU_AO_DocumentStructure::ObjectPara.new.paragraph(h)
+            end
+          end
+        elsif @@flag[:code]==:off
+          if t_o =~/^(?:code\{|[`]{3}\s+code)/
+            @@flag[:code]=case t_o
+            when /^code\{/;        :curls
+            when /^[`]{3}\s+code/; :tics
+            else                   @@flag[:code] #error
+            end
+            @@counter=1
+            @codeblock_numbered=(t_o =~/^(?:code\{#|[`]{3}\s+code\s[#])/) ? true : false
+            h={ obj: 'code block start' }                   #introduce a counter
+            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
+          elsif t_o =~/^(?:poem\{|[`]{3}\s+poem)/
+            @@flag[:poem]=case t_o
+            when /^poem\{/;        :curls
+            when /^[`]{3}\s+poem/; :tics
+            else                   @@flag[:poem] #error
+            end
+            h={ obj: 'poem start' }                         #introduce a counter
+            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
+            when /^group\{/;        :curls
+            when /^[`]{3}\s+group/; :tics
+            else                    @@flag[:group] #error
+            end
+            h={ obj: 'group text start' }                   #introduce a counter
+            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
+            when /^block\{/;        :curls
+            when /^[`]{3}\s+block/; :tics
+            else                    @@flag[:block] #error
+            end
+            h={ obj: 'block text start' }                   #introduce a counter
+            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
+            when /^alt\{/;        :curls
+            when /^[`]{3}\s+alt/; :tics
+            else                  @@flag[:alt] #error
+            end
+            h={ obj: 'alt text start' }                     #introduce a counter
+            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_AO_DocumentStructure::ObjectComment.new.comment(h)
+            tuned_file << ins
+            if t_o=~/^table\{(?:~h)?\s+/
+              @@flag[:table]=:curls
+              @rows=''
+              case t_o
+              when /table\{~h\s+c(\d+);\s+(.+)/
+                cols=$1
+                col=$2.scan(/\d+/)
+                heading=true
+              when /table\{\s+c(\d+);\s+(.+)/
+                cols=$1
+                col=$2.scan(/\d+/)
+                heading=false
+              end
+              @h={ head_: heading, cols: cols, widths: col, idx: idx }
+            elsif t_o=~/^[`]{3}\s+table(?:~h)?\s+c\d+/
+              @@flag[:table]=:tics
+              @rows=''
+              case t_o
+              when /^[`]{3}\s+table~h\s+c(\d+);\s+(.+)/
+                cols=$1
+                col=$2.scan(/\d+/)
+                heading=true
+              when /^[`]{3}\s+table\s+c(\d+);\s+(.+)/
+                cols=$1
+                col=$2.scan(/\d+/)
+                heading=false
+              end
+              @h={ head_: heading, cols: cols, widths: col, idx: idx }
+            elsif t_o=~/^\{table(?:~h)?(?:\s+\d+;?)?\}\n.+\Z/m
+              m1,m2,hd=nil,nil,nil
+              tbl=/^\{table(?:~h)?(?:\s+\d+;?)?\}\n(.+)\Z/m.match(t_o)[1]
+              hd=((t_o =~/^\{table~h/) ? true : false)
+              tbl,tags=extract_tags(tbl)
+              rws=tbl.split(/\n/)
+              rows=''
+              cols=nil
+              rws.each do |r|
+                cols=(cols ? cols : (r.scan('|').length) +1)
+                r=r.gsub(/\s*\|\s*/m,"#{Mx[:tc_p]}")        #r.gsub!(/\|/m,"#{Mx[:tc_p]}")
+                rows += r + Mx[:tc_c]
+              end
+              col=[]
+              if t_o =~/^\{table(?:~h)?\s+(\d+);?\}/       #width of col 1 given as %, usually when wider than rest that are even
+                c1=$1.to_i
+                width=(100 - c1)/(cols - 1)
+                col=[ c1 ]
+                (cols - 1).times { col << width }
+              else                                         #all columns of equal width
+                width=100.00/cols
+                cols.times { col << width }
+              end
+              h={ head_: hd, cols: cols, widths: col, obj: rows, idx: idx, tags: tags }
+              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_AO_DocumentStructure::ObjectComment.new.comment(h)
+              t_o
+            elsif t_o=~/^[`]{3}\s+table(?:~h)?\s+/
+              m1,m2,hd=nil,nil,nil
+              h=case t_o
+              when /^[`]{3}\s+table~h\s+(.+?)\n(.+)\Z/m          #two table representations should be consolidated as one
+                m1,tbl,hd=$1,$2,true
+              when /^[`]{3}\s+table\s+(.+?)\n(.+)\Z/m            #two table representations should be consolidated as one
+                m1,tbl,hd=$1,$2,false
+              else nil
+              end
+              tbl,tags=extract_tags(tbl)
+              col=m1.scan(/\d+/)
+              rws=tbl.split(/\n/)
+              rows=''
+              rws.each do |r|
+                r=r.gsub(/\s*\|\s*/m,"#{Mx[:tc_p]}")        #r.gsub!(/\|/m,"#{Mx[:tc_p]}")
+                rows += r + Mx[:tc_c]
+              end
+              h={ head_: hd, cols: col.length, widths: col, obj: rows, idx: idx, tags: tags }
+              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_AO_DocumentStructure::ObjectComment.new.comment(h)
+              t_o
+            elsif t_o=~/^\{table(?:~h)?\s+/
+              m1,m2,hd=nil,nil,nil
+              h=case t_o
+              when /\{table~h\s+(.+?)\}\n(.+)\Z/m          #two table representations should be consolidated as one
+                m1,tbl,hd=$1,$2,true
+              when /\{table\s+(.+?)\}\n(.+)\Z/m            #two table representations should be consolidated as one
+                m1,tbl,hd=$1,$2,false
+              else nil
+              end
+              tbl,tags=extract_tags(tbl)
+              col=m1.scan(/\d+/)
+              rws=tbl.split(/\n/)
+              rows=''
+              rws.each do |r|
+                r=r.gsub(/\s*\|\s*/m,"#{Mx[:tc_p]}")        #r.gsub!(/\|/m,"#{Mx[:tc_p]}")
+                rows += r + Mx[:tc_c]
+              end
+              h={ head_: hd, cols: col.length, widths: col, obj: rows, idx: idx, tags: tags }
+              t_o=SiSU_AO_DocumentStructure::ObjectTable.new.table(h) unless h.nil?
+              tuned_file << t_o
+              h={ obj: 'table end' }                        #introduce a counter
+              t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
+              t_o
+            end
+          end
+          t_o
+        end
+        if @@flag[:table]==:curls or @@flag[:table]==:tics
+          if (@@flag[:table]==:curls \
+          and t_o =~/^\}table/) \
+          or (@@flag[:table]==:tics \
+          and t_o =~/^[`]{3}(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/)
+            @@flag[:table]=:off
+            headings,columns,widths,idx=@h[:head_],@h[:cols],@h[:widths],@h[:idx]
+            @h={ head_: headings, cols: columns, widths: widths, idx: idx, obj: @rows }
+            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_AO_DocumentStructure::ObjectComment.new.comment(h)
+            t_o
+          else
+            if t_o.is_a?(String) \
+            and t_o !~/^(?:table\{|[`]{3}\s+table)/
+              t_o=t_o.gsub(/^\n+/m,''). #check added for ruby 1.9.2 not needed in 1.8 series (tested in v2)
+                gsub(/\n+/m,"#{Mx[:tc_p]}")
+              @rows += t_o + Mx[:tc_c]
+            end
+            t_o=nil
+          end
+        end
+        if @@flag[:code]==:curls or @@flag[:code]==:tics
+          if (@@flag[:code]==:curls and t_o =~/^\}code/) \
+          or (@@flag[:code]==:tics and t_o =~/^[`]{3}(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/)
+            @@flag[:code]=:off
+            obj=@tuned_code.join("\n")
+            tags=[]
+            h={ obj: obj, tags: tags, number_: @codeblock_numbered }
+            t_o=SiSU_AO_DocumentStructure::ObjectBlockTxt.new.code(h)
+            @tuned_code=[]
+            tuned_file << t_o
+            h={ obj: 'code block end' }                     #introduce a counter
+            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
+          end
+          if (@@flag[:code]==:curls or @@flag[:code]==:tics) \
+          and t_o.is_a?(String)
+            sub_array=t_o.dup + "#{Mx[:br_nl]}"
+            @line_mode=[]
+            sub_array.scan(/.+/) {|w| @line_mode << w if w =~/[\S]+/}
+            t_o=SiSU_AO_DocumentStructureExtract::Build.new(@md,@line_mode).build_lines(:code).join
+            @tuned_code << t_o
+            t_o=nil
+          end
+        elsif (@@flag[:poem]==:curls or @@flag[:poem]==:tics) \
+        or (@@flag[:group]==:curls or @@flag[:group]==:tics) \
+        or (@@flag[:block]==:curls or @@flag[:block]==:tics) \
+        or (@@flag[:alt]==:curls or @@flag[:alt]==:tics)
+          if (@@flag[:poem]==:curls and t_o =~/^\}poem/) \
+          or (@@flag[:poem]==:tics and t_o =~/^[`]{3}(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/)
+            @@flag[:poem]=:off
+            h={ obj: 'poem end' }                           #introduce a counter
+            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*$/)
+            @@flag[:group]=:off
+            obj,tags=extract_tags(@tuned_block.join("\n"))
+            h={ obj: obj, tags: tags }
+            @tuned_block=[]
+            t_o=SiSU_AO_DocumentStructure::ObjectBlockTxt.new.group(h)
+            tuned_file << t_o
+            h={ obj: 'group text end' }                     #introduce a counter
+            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
+          elsif (@@flag[:block]==:curls and t_o =~/^\}block/) \
+          or (@@flag[:block]==:tics and t_o =~/^[`]{3}(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/)
+            @@flag[:block]=:off
+            obj,tags=extract_tags(@tuned_block.join("\n"))
+            h={ obj: obj, tags: tags }
+            @tuned_block=[]
+            t_o=SiSU_AO_DocumentStructure::ObjectBlockTxt.new.block(h)
+            tuned_file << t_o
+            h={ obj: 'block text end' }                     #introduce a counter
+            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*$/)
+            @@flag[:alt]=:off
+            obj,tags=extract_tags(@tuned_block.join("\n"))
+            h={ obj: obj, tags: tags }
+            t_o=SiSU_AO_DocumentStructure::ObjectBlockTxt.new.alt(h)
+            @tuned_block=[]
+            tuned_file << t_o
+            h={ obj: 'alt text end' }                       #introduce a counter
+            t_o=SiSU_AO_DocumentStructure::ObjectComment.new.comment(h)
+          end
+          if (@@flag[:poem]==:curls or @@flag[:poem]==:tics \
+          or @@flag[:group]==:curls or @@flag[:group]==:tics \
+          or @@flag[:alt]==:curls or @@flag[:alt]==:tics) \
+          and t_o =~/\S/ \
+          and t_o !~/^(?:\}(?:verse|code|alt|group|block)|(?:verse|code|alt|group|block)\{)/ \
+          and t_o !~/^[`]{3}\s+(?:code|poem|alt|group|block)|^[`]{3}(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$/ # fix logic
+            sub_array=t_o.dup
+            @line_mode=sub_array.scan(/.+/)
+            type=if @@flag[:poem]==:curls or @@flag[:poem]==:tics
+              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_AO_DocumentStructure::ObjectBlockTxt.new.verse(h)
+                tuned_file << t_o
+              end
+              :poem
+            else :group
+            end
+          end
+          @verse_count+=1 if @@flag[:poem]==:curls or @@flag[:poem]==:tics
+        end
+        if @@flag[:code]==:off
+          if @@flag[:poem]==:curls or @@flag[:poem]==:tics \
+          or @@flag[:group]==:curls or @@flag[:group]==:tics \
+          or @@flag[:alt]==:curls or @@flag[:alt]==:tics
+            if t_o.is_a?(String)
+              t_o=t_o.gsub(/\n/m,"#{Mx[:br_nl]}").
+                gsub(/[ ][ ]/m,"#{Mx[:nbsp]*2}").
+                gsub(/#{Mx[:nbsp]}\s/,"#{Mx[:nbsp]*2}")
+              t_o=t_o + Mx[:br_nl] if t_o =~/\S+/
+            elsif t_o.is==:group \
+            || t_o.is==:block \
+            || t_o.is==:alt \
+            || t_o.is==:verse
+              t_o.obj=t_o.obj.gsub(/\n/m,"#{Mx[:br_nl]}").
+                gsub(/[ ][ ]/m,"#{Mx[:nbsp]*2}").
+                gsub(/#{Mx[:nbsp]}\s/,"#{Mx[:nbsp]*2}")
+            end
+            @tuned_block << t_o if t_o =~/\S+/
+          else tuned_file << t_o
+          end
+        else tuned_file << t_o
+        end
+      end
+      if @md.flag_endnotes
+        tuned_file << @pb
+        h={ ln: 2, lc: 2, obj: 'Endnotes', autonum_: false }
+        tuned_file << SiSU_AO_DocumentStructure::ObjectHeading.new.heading_insert(h)
+        h={ ln: 4, lc: 3, obj: 'Endnotes', name: 'endnotes', autonum_: false }
+        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_AO_DocumentStructure::ObjectHeading.new.heading_insert(h)
+        h={ ln: 4, lc: 3, obj: 'Index', name: 'book_index', autonum_: false }
+        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_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_AO_DocumentStructure::ObjectHeading.new.heading_insert(h)
+      h={ obj: 'eof' }
+      meta=SiSU_AO_DocumentStructure::ObjectMetadata.new.metadata(@metadata)
+      [tuned_file,meta]
+    end
+    def table_rows_and_columns_array(table_str)
+      table=[]
+      table_str.split(/#{Mx[:tc_c]}/).each do |table_row|
+        table_row_with_columns=table_row.split(/#{Mx[:tc_p]}/)
+        table << table_row_with_columns
+      end
+      table
+    end
+    def meta_heading(h)
+      h={ lv: h[:lv], ln: h[:ln], name: h[:name], obj: h[:obj], ocn: '0' }
+      SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
+    end
+    def meta_para(str)
+      h={ obj: str, ocn_: false }
+      SiSU_AO_DocumentStructure::ObjectPara.new.paragraph(h)
+    end
+    def build_lines(type=:none)
+      lines,lines_new=@data,[]
+      lines.each do |line|
+        line=if line =~/\S/ \
+        and line !~/^(?:code\{|\}code)/ \
+        and line !~/^(?:[`]{3}\s+code|[`]{3}(?:\s+[~-][#]|\s+\~\{.+?\}\~)?\s*$)/ \
+        and not line.is_a?(Hash) #watch
+          @@counter+=1 if @@flag[:code]==:curls or @@flag[:code]==:tics
+          line=line.gsub(/\s\s/,"#{Mx[:nbsp]*2}").
+            gsub(/#{Mx[:nbsp]}\s/,"#{Mx[:nbsp]*2}")
+          line=line.gsub(/^/,"#{Mx[:gr_o]}codeline#{Mx[:gr_c]}") if type==:code # REMOVE try sort for texpdf special case
+          line=if line =~/(?:https?|file|ftp):\/\/\S+$/
+            line.gsub(/\s*$/," #{Mx[:br_nl]}")
+          else line.gsub(/\s*$/,"#{Mx[:br_nl]}") #unless type=='code'
+          end
+        elsif line =~/^\s*$/
+          line.gsub(/\s*$/,"#{Mx[:br_nl]}")
+        else line
+        end
+        lines_new << line
+      end
+      lines_new
+    end
+  end
+  class Structure                                          # this must happen early
+    def initialize(md,dob)
+      @md,@dob=md,dob
+    end
+    def structure
+      structure_markup
+      @dob
+    end
+    def structure_markup                                   #build structure where structure provided only in meta header
+      @dob=if @dob.is==:para \
+      && (((@dob.hang !~/[1-9]/) && (@dob.indent !~/[1-9]/)) \
+      || (@dob.hang != @dob.indent)) \
+      and not @dob.bullet_
+        @dob=case @dob.obj
+        when /^#{@md.lv1}/
+          h={ lv: 'A', ln: 1 }
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
+        when /^#{@md.lv2}/
+          h={ lv: 'B', ln: 2 }
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
+        when /^#{@md.lv3}/
+          h={ lv: 'C', ln: 3 }
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
+        when /^#{@md.lv4}/
+          h={ lv: '1', ln: 4 }
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
+        when /^#{@md.lv5}/
+          h={ lv: '2', ln: 5 }
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
+        when /^#{@md.lv6}/
+          h={ lv: '3', ln: 6 }
+          SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h,@dob)
+        else @dob
+        end
+      else @dob
+      end
+      @dob
+    end
+  end
+  class OCN
+    def initialize(md,data)
+      @md,@data=md,data
+    end
+    def structure_info
+      def lv
+        %w[0 A~ B~ C~ 1 2 3]
+      end
+      def possible_parents(child)
+        case child
+        when /A~/
+          'none'
+        when /B~/
+          'A~'
+        when /C~/
+          'B~'
+        when /1/
+          'A~, B~, C~'
+        when /2/
+          '1'
+        when /3/
+          '3'
+        end
+      end
+      def possible_children(parent)
+        case parent
+        when /A~/
+          'B~, 1'
+        when /B~/
+          'C~, 1'
+        when /C~/
+          '1'
+        when /1/
+          '2'
+        when /2/
+          '3'
+        when /3/
+          'none'
+        end
+      end
+      self
+    end
+    def document_structure_check_info(node,node_parent,status=:ok)
+      node_ln=/^([0-6])/.match(node)[1].to_i
+      node_parent_ln=/^([0-6])/.match(node_parent)[1].to_i
+      if status==:error \
+      or @md.opt.act[:maintenance][:set]==:on
+        puts %{node: #{node},    parent node: #{node_parent}  #{status.upcase}}
+        if status==:error
+          node_ln=/^([0-6])/.match(node)[1].to_i
+          node_parent_ln=/^([0-6])/.match(node_parent)[1].to_i
+          puts %{current level: #{structure_info.lv[node_ln]} (possible parent levels: #{structure_info.possible_parents(structure_info.lv[node_ln])})
+parent level:  #{structure_info.lv[node_parent_ln]} (possible child levels: #{structure_info.possible_children(structure_info.lv[node_parent_ln])})
+--        }
+        end
+      end
+    end
+    def warning_incorrect_parent_level_or_level(txt)
+      puts %{warning,
+#{txt}
+has incorrect level and/or parent level}
+    end
+    def ocn                                                                      #and auto segment numbering increment
+      data=@data
+      @o_array=[]
+      node=ocn=ocn_dv=ocn_sp=ocnh=ocnh1=ocnh2=ocnh3=ocnh4=ocnh5=ocnh6=ocno=ocnp=ocnt=ocnc=ocng=ocni=ocnu=0 # h heading, o other, t table, g group, i image
+      regex_exclude_ocn_and_node = /#{Rx[:meta]}|^@\S+?:\s|^4~endnotes|^#{Mx[:lv_o]}4:endnotes#{Mx[:lv_c]}|^\^~ |<:e[:_]\d+?>|^<:\#|<:- |<[:!]!4|<hr width|#{Mx[:br_endnotes]}|\A\s*\Z/mi #ocn here #&nbsp; added with Tune.code #¡
+      parent=node1=node2=node3=node4=node5=node6=nil
+      node0='0:0;0'
+      @collapsed_lv1=1
+      data.each do |dob|
+        h={}
+        if (dob.obj !~ regex_exclude_ocn_and_node || dob.is==:code) \
+        && (dob.of !=:comment \
+        && dob.of !=:layout \
+        && dob.of !=:meta) \
+        && dob.ocn_
+          #dob.ln now is determined, and set earlier, check how best to remove this -->
+          if dob.is==:heading
+             ln=case dob.lv
+             when 'A'; 1
+             when 'B'; 2
+             when 'C'; 3
+             when '1'; 4
+             when '2'; 5
+             when '3'; 6
+             when '4'; 7
+             when '5'; 8
+             when '6'; 9
+             end
+          end
+          if not dob.obj =~/~#|-#/
+            ocn+=1
+          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
+            end
+            if ln==1 \
+            or ln=~@md.lv1
+              if not dob.obj =~/~#|-#/
+                ocn_flag=true
+                ocnh1+=1                     #heading
+                node1="1:#{ocnh1};#{ocn}"
+              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}"
+              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}"
+              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
+              if not dob.obj =~/~#|-#/
+                ocn_flag=true
+                ocnh4+=1
+                node4="4:#{ocnh4};#{ocn}"
+              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}"
+              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}"
+              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}"
+            end
+          else
+            if not dob.obj =~/~#|-#/
+              ocn_flag=true
+            else
+              ocn_flag=false
+            end
+            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
+              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
+          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_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_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_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_AO_DocumentStructure::ObjectHeading.new.heading(h,dob)
+          end
+        else dob
+        end
+        if dob.is==:code \
+        || dob.is==:verse \
+        || dob.is==:alt \
+        || dob.is==:group \
+        || dob.is==:block
+          dob.obj=dob.obj.gsub(/\n\n/,"\n") #newlines taken out
+        end
+        @o_array << dob
+      end
+      @o_array
+    end
+  end
+  class XML
+    def initialize(md,data)
+      @data,@md=data,md
+    end
+    def dom
+      @s=['0',
+        'A',
+        'B',
+        'C',
+        '1',
+        '2',
+        '3'
+      ]
+      @sp='  '
+      tuned_file=structure_build
+      tuned_file
+    end
+    def structure_build
+      data=@data
+      tuned_file=[]
+      hs=[0,false,false,false]
+      t={ lv: @s[0], status: 'open' }
+      tuned_file << tags(t)
+      if @md.opt.act[:verbose_plus][:set]==:on
+        puts "\nXML sisu structure outline --->\n"
+        puts "<#{@s[0]}>"
+      end
+      data.each_with_index do |o,i|
+        if o.is==:heading \
+        || o.is==:heading_insert
+          case o.ln
+          when 1
+            tuned_file << tag_close(o.ln,hs)
+            tuned_file << tag_open(o,@s)
+            if @md.opt.act[:verbose_plus][:set]==:on
+              puts_tag_close(o.ln,hs)
+              puts_tag_open(o,@s)
+            end
+            hs=[1,true,false,false]
+          when 2
+            tuned_file << tag_close(o.ln,hs)
+            tuned_file << tag_open(o,@s)
+            if @md.opt.act[:verbose_plus][:set]==:on
+              puts_tag_close(o.ln,hs)
+              puts_tag_open(o,@s)
+            end
+            hs=[2,true,true,false]
+          when 3
+            tuned_file << tag_close(o.ln,hs)
+            tuned_file << tag_open(o,@s)
+            if @md.opt.act[:verbose_plus][:set]==:on
+              puts_tag_close(o.ln,hs)
+              puts_tag_open(o,@s)
+            end
+            hs=[3,true,true,true]
+          when 4
+            tuned_file << tag_close(o.ln,hs)
+            tuned_file << tag_open(o,@s)
+            if @md.opt.act[:verbose_plus][:set]==:on
+              puts_tag_close(o.ln,hs)
+              puts_tag_open(o,@s)
+            end
+            hs[0]=4
+          when 5
+            tuned_file << tag_close(o.ln,hs)
+            tuned_file << tag_open(o,@s)
+            if @md.opt.act[:verbose_plus][:set]==:on
+              puts_tag_close(o.ln,hs)
+              puts_tag_open(o,@s)
+            end
+            hs[0]=5
+          when 6
+            tuned_file << tag_close(o.ln,hs)
+            tuned_file << tag_open(o,@s)
+            if @md.opt.act[:verbose_plus][:set]==:on
+              puts_tag_close(o.ln,hs)
+              puts_tag_open(o,@s)
+            end
+            hs[0]=6
+          end
+        end
+        tuned_file << o
+      end
+      if @md.opt.act[:verbose_plus][:set]==:on
+        puts_tag_close(0,hs)
+      end
+      tuned_file << tag_close(0,hs)
+      tuned_file=tuned_file.flatten
+    end
+    def tags(o)
+      tag=(o[:status]=='open') \
+      ? %{<#{o[:lv]} id="#{o[:node]}">}
+      : "</#{o[:lv]}>"
+      ln=case o[:lv]
+      when 'A'; 1
+      when 'B'; 2
+      when 'C'; 3
+      when '1'; 4
+      when '2'; 5
+      when '3'; 6
+      when '4'; 7
+      when '5'; 8
+      when '6'; 9
+      end
+      h={ tag: tag, node: o[:node], lv: o[:lv], ln: ln, status: o[:status] }
+      SiSU_AO_DocumentStructure::ObjectStructure.new.xml_dom(h) #downstream code utilise else ignore like comments
+    end
+    def tag_open(o,tag)
+      t={ lv: tag[o.ln], node: o.node, status: 'open' }
+      t_o=tags(t)
+      t_o
+    end
+    def tag_close(lev,hs)
+      ary=[]
+      case hs[0]
+      when 1
+        if (lev <= 1) and hs[1]
+          t={ lv: @s[1], status: 'close' }
+          ary << tags(t)
+        end
+        if (lev==0)
+          t={ lv: @s[0], status: 'close' }
+          ary << tags(t)
+        end
+      when 2
+        if (lev <= 2) and hs[2]
+          t={ lv: @s[2], status: 'close' }
+          ary << tags(t)
+        end
+        if (lev <= 1) and hs[1]
+          t={ lv: @s[1], status: 'close' }
+          ary << tags(t)
+        end
+        if (lev==0)
+          t={ lv: @s[0], status: 'close' }
+          ary << tags(t)
+        end
+      when 3
+        if (lev <= 3) and hs[3]
+          t={ lv: @s[3], status: 'close' }
+          ary << tags(t)
+        end
+        if (lev <= 2) and hs[2]
+          t={ lv: @s[2], status: 'close' }
+          ary << tags(t)
+        end
+        if (lev <= 1) and hs[1]
+          t={ lv: @s[1], status: 'close' }
+          ary << tags(t)
+        end
+        if (lev==0)
+          t={ lv: @s[0], status: 'close' }
+          ary << tags(t)
+        end
+      when 4
+        if (lev <= 4)
+          t={ lv: @s[4], status: 'close' }
+          ary << tags(t)
+        end
+        if (lev <= 3) and hs[3]
+          t={ lv: @s[3], status: 'close' }
+          ary << tags(t)
+        end
+        if (lev <= 2) and hs[2]
+          t={ lv: @s[2], status: 'close' }
+          ary << tags(t)
+        end
+        if (lev <= 1) and hs[1]
+          t={ lv: @s[1], status: 'close' }
+          ary << tags(t)
+        end
+        if (lev==0)
+          t={ lv: @s[0], status: 'close' }
+          ary << tags(t)
+        end
+      when 5
+        if (lev <= 5)
+          t={ lv: @s[5], status: 'close' }
+          ary << tags(t)
+        end
+        if (lev <= 4)
+          t={ lv: @s[4], status: 'close' }
+          ary << tags(t)
+        end
+        if (lev <= 3) and hs[3]
+          t={ lv: @s[3], status: 'close' }
+          ary << tags(t)
+        end
+        if (lev <= 2) and hs[2]
+          t={ lv: @s[2], status: 'close' }
+          ary << tags(t)
+        end
+        if (lev <= 1) and hs[1]
+          t={ lv: @s[1], status: 'close' }
+          ary << tags(t)
+        end
+        if (lev==0)
+          t={ lv: @s[0], status: 'close' }
+          ary << tags(t)
+        end
+      when 6
+        if (lev <= 6)
+          t={ lv: @s[6], status: 'close' }
+          ary << tags(t)
+        end
+        if (lev <= 5)
+          t={ lv: @s[5], status: 'close' }
+          ary << tags(t)
+        end
+        if (lev <= 4)
+          t={ lv: @s[4], status: 'close' }
+          ary << tags(t)
+        end
+        if (lev <= 3) and hs[3]
+          t={ lv: @s[3], status: 'close' }
+          ary << tags(t)
+        end
+        if (lev <= 2) and hs[2]
+          t={ lv: @s[2], status: 'close' }
+          ary << tags(t)
+        end
+        if (lev <= 1) and hs[1]
+          t={ lv: @s[1], status: 'close' }
+          ary << tags(t)
+        end
+        if (lev==0)
+          t={ lv: @s[0], status: 'close' }
+          ary << tags(t)
+        end
+      end
+      ary
+    end
+    def puts_tag_open(o,tag)
+      puts %{#{@sp*o.ln}<#{tag[o.ln]} id="#{o.node}">}
+    end
+    def puts_tag_close(lev,hs)
+      case hs[0]
+      when 1
+        puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1) and hs[1]
+        puts "</#{@s[0]}>"         if (lev==0)
+      when 2
+        puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2) and hs[2]
+        puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1) and hs[1]
+        puts "</#{@s[0]}>"         if (lev==0)
+      when 3
+        puts "#{@sp*3}</#{@s[3]}>" if (lev <= 3) and hs[3]
+        puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2) and hs[2]
+        puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1) and hs[1]
+        puts "</#{@s[0]}>"         if (lev==0)
+      when 4
+        puts "#{@sp*4}</#{@s[4]}>" if (lev <= 4)
+        puts "#{@sp*3}</#{@s[3]}>" if (lev <= 3) and hs[3]
+        puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2) and hs[2]
+        puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1) and hs[1]
+        puts "</#{@s[0]}>"         if (lev==0)
+      when 5
+        puts "#{@sp*5}</#{@s[5]}>" if (lev <= 5)
+        puts "#{@sp*4}</#{@s[4]}>" if (lev <= 4)
+        puts "#{@sp*3}</#{@s[3]}>" if (lev <= 3) and hs[3]
+        puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2) and hs[2]
+        puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1) and hs[1]
+        puts "</#{@s[0]}>"         if (lev==0)
+      when 6
+        puts "#{@sp*6}</#{@s[6]}>" if (lev <= 6)
+        puts "#{@sp*5}</#{@s[5]}>" if (lev <= 5)
+        puts "#{@sp*4}</#{@s[4]}>" if (lev <= 4)
+        puts "#{@sp*3}</#{@s[3]}>" if (lev <= 3) and hs[3]
+        puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2) and hs[2]
+        puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1) and hs[1]
+        puts "</#{@s[0]}>"         if (lev==0)
+      end
+    end
+  end
+end
+__END__