# encoding: utf-8
=begin

* Name: SiSU

** Description: documents, structuring, processing, publishing, search
*** epub segment generation, processing

** Author: Ralph Amissah
  [ralph@amissah.com]
  [ralph.amissah@gmail.com]

** Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
  2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 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]

** 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]

** Git
  [http://git.sisudoc.org/gitweb/?p=code/sisu.git;a=summary]
  [http://git.sisudoc.org/gitweb/?p=code/sisu.git;a=blob;f=lib/sisu/xhtml_epub2_segments.rb;hb=HEAD]

=end
module SiSU_XHTML_EPUB2_Seg
  require_relative 'xhtml_shared'                       # xhtml_shared.rb
  require_relative 'xhtml_epub2'                        # xhtml_epub2.rb
  require_relative 'xhtml_epub2_persist'                # xhtml_epub2_persist.rb
  require_relative 'shared_metadata'                    # shared_metadata.rb
  class Output
    def initialize(md,outputfile,per,type='')
      @md, @output_epub_cont_seg,@per,@type=
        md,outputfile,           per, type
    end
    def output
      if @per.title =~/\S/
        filename_seg=[]
        filename_seg \
        << @per.title \
        << @per.nav
        if @type=='endnotes'
          @per.headings=[] #watch
          txt_obj={ txt: 'Endnotes', ocn_display: ''}
          format_seg=SiSU_XHTML_EPUB2_Format::FormatSeg.new(@md,txt_obj)
          @per.headings \
          << format_seg.title_heading1
          filename_seg \
          << @per.heading_endnotes \
          << @per.headings \
          << %{\n<div class="content">\n} \
          << @per.endnote_all \
          << '</div>'
        elsif @type=='idx'
          @per.headings=[]
          txt_obj={ txt: 'Index', ocn_display: ''}
          format_seg=SiSU_XHTML_EPUB2_Format::FormatSeg.new(@md,txt_obj)
          @per.headings << format_seg.title_heading1
          filename_seg \
          << @per.heading_idx \
          << @per.headings \
          << %{\n<div class="content">\n} \
          << @per.idx \
          << '</div>'
        elsif @type=='metadata'
          metadata=SiSU_Metadata::Summary.new(@md).xhtml_display.metadata
          @per.headings=[]
          txt_obj={ txt: 'Metadata', ocn_display: ''}
          format_seg=SiSU_XHTML_EPUB2_Format::FormatSeg.new(@md,txt_obj)
          @per.headings \
          << format_seg.title_heading1
          filename_seg \
          << @per.heading_idx \
          << @per.headings \
          << %{\n<div class="content">\n} \
          << metadata \
          << '</div>'
        elsif @type=='sisu_manifest'
          env=SiSU_Env::InfoEnv.new(@md.fns)
          path_and_name,url_and_name= \
            "#{env.path.output}/#{@md.fnb}/sisu_manifest.html",
            "#{env.url.root}/#{@md.fnb}/sisu_manifest.html"
          manifest=if FileTest.file?("#{path_and_name}")==true
            <<WOK
<p>A list of available output types may be available at the following url:</p>
<p><a href="#{url_and_name}">#{url_and_name}</a></p>
WOK
          else ''
          end
          @per.headings=[]
          txt_obj={ txt: 'Manifest', ocn_display: ''}
          format_seg=SiSU_XHTML_EPUB2_Format::FormatSeg.new(@md,txt_obj)
          @per.headings \
          << format_seg.title_heading1
          filename_seg \
          << @per.heading_idx \
          << @per.headings \
          << %{\n<div class="content">\n} \
          << manifest \
          << '</div>'
        else
          filename_seg \
          << @per.headings \
          << @per.main \
          << "\n</div>\n"
        end
        filename_seg \
        << @per.tail \
        << @per.nav \
        << @per.closed
        filename_seg=filename_seg.flatten.compact #watch
        filename_seg.each do |str|
          unless str =~/\A\s*\Z/
            @output_epub_cont_seg \
            << str.strip
          end
        end
        @output_epub_cont_seg.close
      end
    end
  end
  class Seg
    @@seg_name=[]
    @@seg_url=''
    @@tracker=0
    attr_reader :seg_name_x,:seg_name_x_tracker
    def initialize(md='',data='')
      @md,@data=md,data
      @per=SiSU_XHTML_EPUB2_Persist::Persist.new
      @seg_name_x=@per.seg_name_x=(@@seg_name || [])
      @seg_name_x_tracker=@per.seg_name_x_tracker=(@@tracker || 0)
      @make=SiSU_Env::ProcessingSettings.new(@md) if @md
    end
    def songsheet
      begin
        data=get_subtoc_endnotes(@data,@per)
        data=articles(data,@per)
        SiSU_XHTML_EPUB2_Seg::Seg.new.cleanup(@md,@per) # (((( added ))))
        #### (((( END )))) ####
      rescue
        SiSU_Errors::Rescued.new($!,$@,@md.opt.selections.str,@md.fns).location do
          __LINE__.to_s + ':' + __FILE__
        end
      ensure
        SiSU_XHTML_EPUB2_Persist::Persist.new.persist_init
        @@seg_name=@per.seg_name=[]
      end
    end
  protected
    def articles(data,per)
      @per=per
      tracking,newfile=0,0
      printed_endnote_seg='n'
      idx_xhtml=nil
      if @md.book_idx
        idx_xhtml=SiSU_Particulars::CombinedSingleton.
          instance.get_idx_xhtml(@md).xhtml_idx
        idx_xhtml.each do |x|
          @per.idx << x
        end
        @per.heading_idx=''
      end
      data.each do |dob|
        if (dob.is == :heading \
        || dob.is == :heading_insert) \
        && dob.ln == 4
          @@seg_name << dob.name
          @per.seg_name = @@seg_name
          dob.name
        end
      end
      @per.seg_name_x=@per.seg_name
      @per.seg_name.length
      testforartnum=@per.seg_name_x
      if (@md.opt.act[:verbose][:set]==:on \
      || @md.opt.act[:verbose_plus][:set]==:on \
      || @md.opt.act[:maintenance][:set]==:on)
        SiSU_Screen::Ansi.new(
          @md.opt.act[:color_state][:set],
          @per.seg_name.length
        )
      end
      SiSU_Particulars::CombinedSingleton.
        instance.get_map_nametags(@md).nametags_map #p map_nametags
      data.each do |dob|
        #if defined? dob.obj \
        #and dob.obj =~/href="#{Xx[:segment]}#+\S+?"/
        #  ##Consider: remove, reinstate earlier?
        #  #while dob.obj =~/href="#{Xx[:segment]}#+(\S+?)"/
        #  #  m=$1
        #  #  if map_nametags[m][:segname]
        #  #    dob.obj=dob.obj.sub(/href="#{Xx[:segment]}#+(\S+?)"/,%{href="#{map_nametags[m][:segname]}#{Sfx[:html]}#\\1"})
        #  #  else
        #  #    p "NOT FOUND name_tags: #{m}"
        #  #    dob.obj=dob.obj.sub(/href="#{Xx[:segment]}#+(\S+?)"/,%{href="#\\1"}) # not satisfactory
        #  #  end
        #  #end
        #end
        if (dob.is==:heading \
        || dob.is==:heading_insert) \
        && dob.ln==4
          @per.heading4=dob.obj
          @per.is4=newfile=1
        end
        if (dob.is==:heading \
        || dob.is==:heading_insert) \
        && dob.ln==3
          @per.heading3=dob.obj
          @per.is4,@per.is3=0,1
        end
        if (dob.is==:heading \
        || dob.is==:heading_insert) \
        && dob.ln==2
          @per.heading2=dob.obj
          @per.is4,@per.is3,@per.is2=0,0,1
        end
        if (dob.is==:heading \
        || dob.is==:heading_insert) \
        && dob.ln==1
          @per.heading1=dob.obj
          @per.is4,@per.is3,@per.is2,@per.is1=0,0,0,1
        end
        if (dob.is==:heading \
        || dob.is==:heading_insert) \
        && dob.ln==0
          @per.heading0=dob.obj
          @per.is4,@per.is3,@per.is2,@per.is1,@per.is0=0,0,0,0,1
        end
        if (@per.is0 && !@per.is1 && !@per.is2 && !@per.is3 && !@per.is4)
          if not (dob.is==:heading \
          || dob.is==:heading_insert) \
          && dob.ln==0
            $_ #; check
          end
        end
        if @per.is4==1
          dir_epub_cont="#{@md.env.processing_path.epub}/#{Ep[:d_oebps]}"
          if newfile==1 \
          or dob.obj =~/^#{Mx[:br_endnotes]}|^#{Mx[:br_eof]}/
            newfile=0
            if (dob.is==:heading \
            || dob.is==:heading_insert) \
            && dob.ln==4
              if tracking != 0
                tail(@md,@per)
                #SiSU_XHTML_EPUB2_Seg::Seg.new(@md,@per).tail
                segfilename="#{dir_epub_cont}/#{@per.seg_name_x[tracking-1]}#{Sfx[:epub_xhtml]}"
                output_epub_cont_seg=File.new(segfilename,'w') if @per.seg_name_x[tracking-1]
                if dob.is==:heading \
                or @per.seg_name_x[tracking-1] !~/endnotes|book_index|metadata/
                  SiSU_XHTML_EPUB2_Seg::Output.new(@md,output_epub_cont_seg,@per).output
                elsif dob.is==:heading_insert
                  if @per.seg_name_x[tracking-1]=='endnotes'
                    SiSU_XHTML_EPUB2_Seg::Output.new(@md,output_epub_cont_seg,@per,'endnotes').output
                  elsif @per.seg_name_x[tracking-1]=='book_index'
                    SiSU_XHTML_EPUB2_Seg::Output.new(@md,output_epub_cont_seg,@per,'idx').output
                    @per.idx=[]
                  elsif @per.seg_name_x[tracking-1]=='metadata' # navigation bug FIX
                    SiSU_XHTML_EPUB2_Seg::Output.new(@md,output_epub_cont_seg,@per,'metadata').output
                  else puts "#{__FILE__}::#{__LINE__}"
                  end
                else puts "#{__FILE__}::#{__LINE__}"
                end
                SiSU_XHTML_EPUB2_Seg::Seg.new.reinitialise(per)
                heading_art(dob)
                head(dob)
                if @per.seg_name_x[tracking] =='metadata'
                  segfilename="#{dir_epub_cont}/#{@per.seg_name_x[tracking]}#{Sfx[:epub_xhtml]}"
                  output_epub_cont_seg=File.new(segfilename,'w')
                  SiSU_XHTML_EPUB2_Seg::Output.new(@md,output_epub_cont_seg,@per,'metadata').output
                  SiSU_XHTML_EPUB2_Seg::Seg.new.reinitialise(per)
                  #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.closed                                         #%(((( EOF )))) -->
              end
              if tracking==0
                heading_art(dob)
                head(dob)
              end
            end
            tracking=tracking+1
          end
          if (dob.is==:heading \
          || dob.is==:heading_insert) \
          && dob.ln==4 \
          && dob.name
            @per.get_hash_to=dob.name
            @per.get_hash_fn=dob.name
          end
          if dob.obj.is_a?(String)
            markup(dob)
          elsif dob.obj.is_a?(Array)
            dob.obj.each do |pg|
              markup(pg)
            end
          end
          if testforartnum[tracking-1] =~/endnote/
            if printed_endnote_seg=='n'
              printed_endnote_seg='y'
            end
          end
        end
      end
      data
    end
    def heading_art(dob)
      @per.title=SiSU_XHTML_EPUB2_Format::HeadSeg.new(@md).head
    end
    def head(dob)
      clean=/<!.*?!>|<:.*?>$/
      @p_num ||= ''
      if @per.is0==1
        if defined? @md.creator.author \
        and @md.creator.author
          @author=%{<b>#{@md.creator.author}</b>\n}
        end
        @p_num=SiSU_XHTML_EPUB2_Format::ParagraphNumber.new(@md,dob.ocn)
        txt_obj={ txt: @per.heading0, ocn_display: @p_num.ocn_display }
        format_seg=SiSU_XHTML_EPUB2_Format::FormatSeg.new(@md,txt_obj)
        @per.headings << format_seg.title_heading0.gsub(clean,'')
        @per.heading0=@per.heading0.
          gsub(/#{$ep[:hsp]}<a name="-[\d*+]+" href="#_[\d*+]+">#{$ep[:hsp]}<sup>[\d*+]+<\/sup>#{$ep[:hsp]}<\/a>/,'')
      end
      if @per.is1==1
        @p_num=SiSU_XHTML_EPUB2_Format::ParagraphNumber.new(@md,dob.ocn)
        txt_obj={ txt: @per.heading1, ocn_display: @p_num.ocn_display }
        format_seg=SiSU_XHTML_EPUB2_Format::FormatSeg.new(@md,txt_obj)
        @per.headings << format_seg.title_heading1.gsub(clean,'')
        @per.heading1=@per.heading1.
          gsub(/#{$ep[:hsp]}<a name="-[\d*+]+" href="#_[\d*+]+">#{$ep[:hsp]}<sup>[\d*+]+<\/sup>#{$ep[:hsp]}<\/a>/,'')
      end
      if @per.is2==1
        heading2=@per.heading2
        @p_num=SiSU_XHTML_EPUB2_Format::ParagraphNumber.new(@md,dob.ocn)
        txt_obj={ txt: heading2, ocn_display: @p_num.ocn_display }
        format_seg=SiSU_XHTML_EPUB2_Format::FormatSeg.new(@md,txt_obj)
        @per.headings << format_seg.title_heading2.gsub(clean,'')
        @per.heading2=@per.heading2.
          gsub(/#{$ep[:hsp]}<a name="-[\d*+]+" href="#_[\d*+]+">#{$ep[:hsp]}<sup>[\d*+]+<\/sup>#{$ep[:hsp]}<\/a>/,'')
      end
      if @per.is3==1
        heading3=@per.heading3
        @p_num=SiSU_XHTML_EPUB2_Format::ParagraphNumber.new(@md,dob.ocn)
        txt_obj={ txt: heading3, ocn_display: @p_num.ocn_display }
        format_seg=SiSU_XHTML_EPUB2_Format::FormatSeg.new(@md,txt_obj)
        @per.headings << format_seg.title_heading3.gsub(clean,'')
        @per.heading3=@per.heading3.
          gsub(/#{$ep[:hsp]}<a name="-[\d*+]+" href="#_[\d*+]+">#{$ep[:hsp]}<sup>[\d*+]+<\/sup>#{$ep[:hsp]}<\/a>/,'')
      end
      if @per.is4==1
        heading4=@per.heading4
        @p_num=SiSU_XHTML_EPUB2_Format::ParagraphNumber.new(@md,dob.ocn)
        txt_obj={ txt: heading4, ocn_display: @p_num.ocn_display }
        format_seg=SiSU_XHTML_EPUB2_Format::FormatSeg.new(@md,txt_obj)
        @per.headings \
        << format_seg.title_heading4.gsub(clean,'')
      end
      @@tracker=@@tracker+1
    end
    def markup(dob)
      @debug=[]
      if dob.is ==:heading \
      || dob.is ==:heading_insert \
      || dob.is ==:para
        #extend as necessary FIX
        @p_num=SiSU_XHTML_EPUB2_Format::ParagraphNumber.new(@md,dob.ocn)
      end
      sto=SiSU_XHTML_EPUB2_Format::FormatTextObject.new(@md,dob)
      dob_xhtml=if dob.is==:heading \
      || dob.is==:heading_insert \
      || dob.is==:para
        dob_xhtml=if dob.is==:heading \
        or dob.is==:heading_insert
          if dob.ln==4
            sto.seg_heading4 # work on see SplitTextObject
          elsif dob.ln==5
            sto.seg_heading5
          elsif dob.ln==6
            sto.seg_heading6
          elsif dob.ln==7
            sto.seg_heading7
          end
        elsif dob.is==:para
          if dob.indent \
          and dob.hang \
          and dob.indent =~/[0-9]/ \
          and dob.hang =~/[0-9]/
            if dob.bullet_
              (dob.indent =~/[1-9]/) \
              ? sto.format('li',"i#{dob.indent}")
              : sto.format('li','bullet')
            elsif dob.indent == dob.hang
              sto.format('p',"i#{dob.indent}")
            elsif dob.indent != dob.hang
              sto.format('p',"h#{dob.hang}i#{dob.indent}")
            else sto.para
            end
          else sto.para
          end
        end
      elsif dob.is ==:block \
      || dob.is ==:group \
      || dob.is ==:alt
        sto.para #fix this should be block type specific #FIX
      elsif dob.is==:verse
        sto.verse
      elsif dob.is==:code
        sto.code
      elsif dob.is==:table
        sto.table
      elsif dob.is==:break
        sto.break
      end
      if @md.flag_separate_endnotes # may need to revisit, check
        dob.obj=dob.obj.gsub(/"\s+href="##{Mx[:note_ref]}(\d+)">/,
          %{" href=\"endnotes#{Sfx[:epub_xhtml]}##{Mx[:note_ref]}\\1">})
          #endnote- twice #removed file type
      end
      if (dob.is ==:heading \
      || dob.is==:heading_insert \
      || dob.is==:para) \
      && (not dob.ocn or dob.ocn.to_s.empty?)
        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_XHTML_EPUB2_Format::FormatSeg.new(@md,dob)
        dob.obj=format_seg.no_paranum
      end
      if (dob.is==:heading \
      || dob.is==:heading_insert) \
      and dob.ln==4
        @per.main <<  %{\n<div class="content">\n}
        @per.main << dob_xhtml
        if @make.build.segsubtoc?
          @per.main << @per.seg_subtoc[@per.get_hash_fn]
          #% insertion of sub-toc
        end
      else
        @per.main << dob_xhtml
      end
    end
    def tail(md,per)
      @md,@per=md,per
      format_head_seg=SiSU_XHTML_EPUB2_Format::HeadSeg.new(@md)
      if @md.flag_auto_endnotes \
      and @per.seg_endnotes[@per.get_hash_fn]
        @per.tail <<  %{\n<div class="content">\n<div class="endnote">\n}
        if @per.seg_endnotes[@per.get_hash_fn].flatten.length > 0
          @per.tail << format_head_seg.endnote_mark
          @per.tail << @per.seg_endnotes[@per.get_hash_fn].flatten
          #endnotes deposited at end of individual segments ||@|EXTRACTION OF ENDNOTES|
        end
        @per.tail << '</div>'
        @per.tail << '</div>' #this div closes div class content
      end
      @per.closed=[]
      @per.closed << format_head_seg.xhtml_close
    end
    def reinitialise(per)
      per.headings,per.main,per.tail,per.credits=Array.new(4){[]}
    end
    def cleanup(md,per)
      reinitialise(per)
      @@tracker=0
      @per.seg_endnotes,@per.seg_subtoc={},{}
      @per.seg_endnotes_array,@per.seg_subtoc_array=[],[]
      per.endnote_all=[]
    end
    def get_subtoc_endnotes(data,per) #get endnotes & sub-table of contents subtoc
      @per=per
      data.each do |dob|
        dob.obj=dob.obj.gsub(/<a name=\"h\d.*?\">(.+?)<\/a>/mi,'\1')
        if @md.flag_auto_endnotes
          if (dob.is==:heading \
          || dob.is==:heading_insert) \
          && dob.ln.to_s =~/^[1-4]/ \
          and not @per.fn.to_s.empty?
            @per.seg_endnotes[@per.fn]=[]
            @per.seg_endnotes[@per.fn] << @per.seg_endnotes_array
            @per.seg_endnotes_array=[] if dob.ln==4
          end
          if (dob.is==:heading \
          || dob.is==:heading_insert) \
          && dob.ln==4
            #%  EXTRACTION OF SUB-TOCs & SEGMENT NAME, after EXTRACTION OF ENDNOTES & SUB-TOCs
            @per.seg_subtoc[@per.fn]=@per.seg_subtoc_array
            @per.seg_subtoc_array=[]
            if dob.name \
            and dob.obj
              @per.fn=dob.name
            else
              @per.fn=(dob.name =~/\S+/) \
              ? dob.name
              : ''
            end
          end
        end
        if dob.is==:heading \
        && dob.ln.to_s =~/^[5-7]/
          case dob.ln
          when 5
            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_XHTML_EPUB2_Format::FormatSeg.new(@md,dob)
            subtoc=format_seg.subtoc_lev6 #keep and make available, this is the subtoc
          when 7
            format_seg=SiSU_XHTML_EPUB2_Format::FormatSeg.new(@md,dob)
            subtoc=format_seg.subtoc_lev7 #keep and make available, this is the subtoc
          end
          @per.seg_subtoc_array << subtoc
        end
        if @md.flag_auto_endnotes
          ast,pls='&#042;','&#043;'
          if dob.obj =~/(?:#{Mx[:en_a_o]}|#{Mx[:en_b_o]})(?:\d|#{ast}|#{pls})+ / \
          and dob.is !=:code # endnote-
            endnote_array=[]
            if dob.obj=~/#{Mx[:en_a_o]}.+?#{Mx[:en_a_c]}/m
              endnote_array << dob.obj.scan(/#{Mx[:en_a_o]}.+?#{Mx[:en_a_c]}/m)
            end
            if dob.obj=~/#{Mx[:en_b_o]}#{ast}\d+\s.+?#{Mx[:en_b_c]}/m
              endnote_array \
              << dob.obj.scan(/#{Mx[:en_b_o]}#{ast}\d+\s.+?#{Mx[:en_b_c]}/m)
            end
            if dob.obj=~/#{Mx[:en_b_o]}#{pls}\d+\s.+?#{Mx[:en_b_c]}/m
              endnote_array \
              << dob.obj.scan(/#{Mx[:en_b_o]}#{pls}\d+\s.+?#{Mx[:en_b_c]}/m)
            end
            endnote_array=endnote_array.flatten #.compact #check compacting
            endnote_array.each do |note|
              note_match=note.dup
              note_match_seg=note.dup
              e_n=note_match_seg[/(?:#{Mx[:en_a_o]}(?:\d|#{ast}|#{pls})+|#{Mx[:en_b_o]}(?:#{ast}|#{pls})\d+)\s+(.+?)(?:#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/m,1]
              try=e_n.split(/<br(?: \/)?>/)
              try.each do |e|
                txt_obj={ txt: e }
                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
                end
                @per.seg_endnotes_array << note_match
              end
              try.join('<br \/>')
              #% creation of separate end segment/page of all endnotes referenced back to reference segment
              m=/(?:#{Mx[:en_a_o]}(?:\d|#{ast}|#{pls})+|#{Mx[:en_b_o]}(?:#{ast}|#{pls})\d+)\s+(.+?href=")(##{Mx[:note_ref]}(?:\d|_a|_b)+".+)(?:#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/mi
              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_XHTML_EPUB2_Format::FormatSeg.new(@md,txt_obj)
              note_match_all_seg=format_seg.endnote_seg_body(@per.fn) #BUG WATCH 200408
              @per.endnote_all << note_match_all_seg
            end
            dob.obj=dob.obj.gsub(/(?:#{Mx[:en_a_o]}.+?#{Mx[:en_a_c]}|#{Mx[:en_b_o]}.+?#{Mx[:en_b_c]})\s*/m,' ')
          end
        end
      end
    end
  end
end
__END__