v3dv, add dev branch (use to make some changes to module & class names & test)

* (intended as) short term branch, merge back into v3 once tested
* sisu --dev (to invoke)

1 files changed, 706 insertions, 0 deletions

diff --git a/lib/sisu/v3dv/epub.rb b/lib/sisu/v3dv/epub.rb
new file mode 100644
index 00000000..e0a1d219
--- /dev/null
+++ b/lib/sisu/v3dv/epub.rb
@@ -0,0 +1,706 @@
+# encoding: utf-8
+=begin
+
+ * Name: SiSU
+
+ * Description: a framework for document structuring, publishing and search
+
+ * Author: Ralph Amissah
+
+ * Copyright: (C) 1997 - 2012, 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.jus.uio.no/sisu/gpl.fsf/toc.html>
+   <http://www.jus.uio.no/sisu/gpl.fsf/doc.html>
+   <http://www.jus.uio.no/sisu/gpl.fsf/plain.txt>
+
+ * 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.jus.uio.no/sisu/SiSU/download.html>
+
+ * Ralph Amissah
+   <ralph@amissah.com>
+   <ralph.amissah@gmail.com>
+
+ ** Description: epub generation, processing
+
+=end
+module SiSU_EPUB
+  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
+  class Source
+    def initialize(opt)
+      @opt=opt
+      @particulars=SiSU_Particulars::Combined_singleton.instance.get_all(opt)
+    end
+    def read
+      songsheet
+    end
+    def songsheet
+      begin
+        @md=@particulars.md
+        @fnb=@md.fnb
+        @env=@particulars.env
+        loc=@env.path.url.output_tell
+        unless @opt.cmd =~/q/
+          tool=(@opt.cmd =~/[MVvz]/) \
+          ? "#{@env.program.epub_viewer} #{@md.file.output_path.epub.dir}/#{@md.file.base_filename.epub}"
+          : "[#{@opt.f_pth[:lng_is]}] #{@opt.fns}"
+          @opt.cmd=~/[MVvz]/ \
+          ? SiSU_Screen::Ansi.new(@opt.cmd,'EPUB',tool).green_hi_blue
+          : SiSU_Screen::Ansi.new(@opt.cmd,'EPUB',tool).green_title_hi
+          SiSU_Screen::Ansi.new(@opt.cmd,@opt.fns,"#{@md.file.output_path.epub.dir}/#{@md.file.base_filename.epub}").flow if @opt.cmd =~/[MV]/
+        end
+        @env.processing_path.epub_bld #(@md)
+        @env.processing_path.epub_cp_images(@md)
+        dir_epub=@env.processing_path.epub
+        SiSU_Env::Info_skin.new(@md).select
+        data=nil
+        SiSU_Env::SiSU_file.new(@md).mkdir.output.epub
+        @tuned_file_array=SiSU_EPUB::Source::XHtml_environment.new(@particulars).tuned_file_instructions
+        data=@tuned_file_array
+        scr_endnotes=SiSU_EPUB::Source::Endnotes.new(@md,data).scroll
+        toc=SiSU_EPUB::Source::Toc.new(@md,data).songsheet
+        data=@tuned_file_array
+        scr_toc=SiSU_EPUB::Source::Scroll_head_and_segtoc.new(@md,toc).in_common #watch
+        SiSU_EPUB::Source::Seg.new(@md,data).songsheet
+        SiSU_EPUB::Source::Epub_output.new(@md).songsheet
+      rescue; SiSU_Errors::Info_error.new($!,$@,@opt.cmd,@opt.fns).error
+      ensure
+        unless @opt.cmd =~/[MV]/ #check maintenance flag
+          texfiles=Dir["#{@env.processing_path.tune}/#{@opt.fns}*"]
+          texfiles.each do |f|
+            if FileTest.file?(f)
+              File.unlink(f)
+            end
+          end
+        end
+        SiSU_Env::Clear.new(@opt.cmd,@opt.fns).param_instantiate
+        @@flag,@@scr,@@seg,@@seg_endnotes,@@seg_subtoc,@@seg_ad={},{},{},{},{},{}
+        @@seg_total,@@tracker,@@loop_count,@@tablehead,@@number_of_cols=0,0,0,0,0
+        @@seg_name,@@seg_name_html,@@seg_subtoc_array,@@seg_endnotes_array,@@segtocband,@@tablefoot=Array.new(7){[]}
+        @@filename_seg,@@seg_url,@@fn,@@to_lev4,@@get_hash_to,@@get_hash_fn='','','','','','',''
+        @@is4=@@is3=@@is2=@@is1=@@heading1=@@heading2=@@heading3=@@heading4=0
+      end
+    end
+    private
+    class XHtml_environment
+      def initialize(particulars)
+        @particulars=particulars
+        @md,@env=particulars.md,particulars.env
+        @vz=SiSU_Env::Get_init.instance.skin
+        @env,@css,@symlnk=particulars.env,SiSU_Style::CSS.new,SiSU_Env::Create_system_link.new #home
+      end
+      def link_images
+        @symlnk.images
+      end
+      def directories
+        title=File.basename(@md.fns,'.rb')
+        SiSU_Env::SiSU_file.new(@md).mkdir.output.epub
+      end
+      def tuned_file_instructions
+        @tell=SiSU_Screen::Ansi.new(@md.opt.cmd)
+        @md.opt.cmd=@md.opt.cmd.gsub(/H/,'h')
+        @md.file_type='html' if @md.opt.cmd =~/[hon]/
+        directories
+        dal_array=@particulars.dal_array # dal file drawn here
+        @tuned_file_array=SiSU_EPUB_Tune::Tune.new(dal_array,@md).songsheet
+        @tuned_file_array
+      end
+    end
+    class Endnotes
+      include SiSU_EPUB_Format
+      def initialize(md,data)
+        @md,@data=md,data
+      end
+      def scroll
+        @scr_endnotes=[]
+        format_head_scroll=SiSU_EPUB_Format::Head_scroll.new(@md)
+        @data.each do |dob|
+          pg=dob.dup
+          unless pg.is =~/^code/
+            if pg.obj =~/(?:#{Mx[:en_a_o]}|#{Mx[:en_b_o]})[\d*+]+ /
+              endnote_array=[]
+              if pg.obj=~/#{Mx[:en_a_o]}[\d*+].+?#{Mx[:en_a_c]}/m
+                endnote_array = pg.obj.scan(/#{Mx[:en_a_o]}[\d*+]+(.+?)#{Mx[:en_a_c]}/m)
+              end
+              if pg.obj=~/#{Mx[:en_b_o]}[\d*]+\s.+?#{Mx[:en_b_c]}/m
+                endnote_array = pg.obj.scan(/#{Mx[:en_b_o]}[\d*]+(.+?)#{Mx[:en_b_c]}/m)
+              end
+              if pg.obj=~/#{Mx[:en_b_o]}[\d+]+\s.+?#{Mx[:en_b_c]}/m
+                endnote_array = pg.obj.scan(/#{Mx[:en_b_o]}[\d+]+(.+?)#{Mx[:en_b_c]}/m)
+              end
+              endnote_array.flatten.each do |note|
+                txt_obj={ txt: note }
+                format_scroll=SiSU_EPUB_Format::Format_scroll.new(@md,txt_obj)
+                @scr_endnotes << format_scroll.endnote_body
+              end
+            end
+          end
+        end
+        @scr_endnotes
+      end
+    end
+    class Toc
+      @@toc={ seg: [], seg_mini: [], scr: [], ncx: [], opf: [] }
+      @@seg_url=''
+      @@firstseg=nil
+      def initialize(md=nil,data='')
+        @md,@data=md,data
+        @vz=SiSU_Env::Get_init.instance.skin
+        @epub=SiSU_EPUB_Format::Head_information.new(@md)
+        @tell=SiSU_Screen::Ansi.new(@md.opt.cmd) if @md
+      end
+      def songsheet #extracts toc for scroll & seg
+        SiSU_Screen::Ansi.new(@md.opt.cmd,'Toc').txt_grey if @md.opt.cmd =~/[MVv]/
+        toc=nil
+        @@firstseg=nil
+        @@toc={ seg: [], seg_mini: [], scr: [], ncx: [], opf: [] }
+        md_opf_a_content,md_opf_a_spine,md_opf_a_guide=[],[],[]
+        @nav_no=0
+        @s_a_no,@s_b_no,@s_c_no=0,0,0
+        @@toc[:ncx] << @epub.toc_ncx.open #epub ncx navmap
+        @@toc[:ncx] << @epub.toc_ncx.head_open << @epub.toc_ncx.head << @epub.toc_ncx.head_close
+        @@toc[:ncx] << @epub.toc_ncx.doc_title << @epub.toc_ncx.doc_author
+        @@toc[:ncx] << @epub.toc_ncx.navmap_open
+        @@toc[:opf] << @epub.metadata_opf.package_open
+        @@toc[:opf] << @epub.metadata_opf.metadata
+        @@toc[:opf] << @epub.metadata_opf.manifest_open
+        @@toc[:seg] << %{<div class="content">\n<div class="substance">}
+        @@toc[:scr] << %{<div class="content">\n<div class="substance">}
+        md_opf_a_content << @epub.metadata_opf.manifest_content_sisu_toc
+        md_opf_a_spine << @epub.metadata_opf.spine_sisu_toc
+        md_opf_a_guide << @epub.metadata_opf.guide_sisu_toc
+        @ncxo=[nil,false,false,false,false,false,false]
+        @dob_toc2,@dob_toc3=nil,nil
+        @ncx_cls=[]
+        @level_a_first_occurrence=true
+        @data.each do |dob|
+          if dob.is=='heading' \
+          or dob.is=='heading_insert'
+            dob_toc=dob.dup
+            toc=case dob_toc.ln
+            when 1
+              @s_a_no +=1
+              name_s_a='section_a' + @s_a_no.to_s
+              @nav_no+=1
+              @nav_no2=@nav_no
+              @@toc[:ncx] << @epub.toc_ncx.navpoint_close if @ncxo[4]
+              @@toc[:ncx] << @epub.toc_ncx.navpoint_close if @ncxo[3]
+              @@toc[:ncx] << @epub.toc_ncx.navpoint_close if @ncxo[2]
+              @@toc[:ncx] << @epub.toc_ncx.navpoint_close if @ncxo[1]
+              @ncxo[1],@ncxo[2],@ncxo[3],@ncxo[4]=true,false,false,false
+              @epub.sections(dob_toc,name_s_a)
+              @@toc[:ncx] << @epub.toc_ncx.navpoint(dob_toc,@nav_no,name_s_a) if dob_toc
+              if @level_a_first_occurrence
+                @nav_no+=1
+                @@toc[:ncx] << @epub.toc_ncx.navmap_sisu_toc(@nav_no) #epub ncx navmap, toc
+                @level_a_first_occurrence=false
+              end
+              md_opf_a_content << @epub.metadata_opf.manifest_content(dob_toc,name_s_a)
+              md_opf_a_spine << @epub.metadata_opf.spine(dob_toc,name_s_a)
+              md_opf_a_guide << @epub.metadata_opf.guide(dob_toc,name_s_a)
+              Toc.new(@md,dob_toc).level_1
+            when 2
+              @s_b_no +=1
+              name_s_b='section_b' + @s_b_no.to_s
+              @nav_no+=1
+              @nav_no2=@nav_no
+              @@toc[:ncx] << @epub.toc_ncx.navpoint_close if @ncxo[4]
+              @@toc[:ncx] << @epub.toc_ncx.navpoint_close if @ncxo[3]
+              @@toc[:ncx] << @epub.toc_ncx.navpoint_close if @ncxo[2]
+              @ncxo[2],@ncxo[3],@ncxo[4]=true,false,false
+              @epub.sections(dob_toc,name_s_b)
+              @@toc[:ncx] << @epub.toc_ncx.navpoint(dob_toc,@nav_no,name_s_b) if dob_toc
+              md_opf_a_content << @epub.metadata_opf.manifest_content(dob_toc,name_s_b)
+              md_opf_a_spine << @epub.metadata_opf.spine(dob_toc,name_s_b)
+              md_opf_a_guide << @epub.metadata_opf.guide(dob_toc,name_s_b)
+              Toc.new(@md,dob_toc).level_2
+            when 3
+              @s_c_no +=1
+              name_s_c='section_c' + @s_c_no.to_s
+              @nav_no+=1
+              @nav_no3=@nav_no
+              @@toc[:ncx] << @epub.toc_ncx.navpoint_close if @ncxo[4]
+              @@toc[:ncx] << @epub.toc_ncx.navpoint_close if @ncxo[3]
+              @ncxo[3],@ncxo[4]=true,false
+              @epub.sections(dob_toc,name_s_c)
+              @@toc[:ncx] << @epub.toc_ncx.navpoint(dob_toc,@nav_no,name_s_c) if dob_toc
+              md_opf_a_content << @epub.metadata_opf.manifest_content(dob_toc,name_s_c)
+              md_opf_a_spine << @epub.metadata_opf.spine(dob_toc,name_s_c)
+              md_opf_a_guide << @epub.metadata_opf.guide(dob_toc,name_s_c)
+              Toc.new(@md,dob_toc).level_3
+            when 4
+              @ncx_cls=[]
+              @nav_no+=1
+              @@toc[:ncx] << @epub.toc_ncx.navpoint_close if @ncxo[4]
+              @ncxo[4]=true
+              @@toc[:ncx] << @epub.toc_ncx.navpoint(dob_toc,@nav_no) if dob_toc
+              md_opf_a_content << @epub.metadata_opf.manifest_content(dob_toc)
+              md_opf_a_spine << @epub.metadata_opf.spine(dob_toc)
+              md_opf_a_guide << @epub.metadata_opf.guide(dob_toc)
+              Toc.new(@md,dob_toc).level_4
+            when 5; Toc.new(@md,dob_toc).level_5
+            when 6; Toc.new(@md,dob_toc).level_6
+            else nil
+            end
+            toc.each do |k,d|
+              d.gsub!(/(?:#{Mx[:en_a_o]}.+?#{Mx[:en_a_c]}|#{Mx[:en_b_o]}.+?#{Mx[:en_b_c]})\s*/m,' ')
+            end if toc
+            if @@firstseg.nil? \
+            and dob.ln==4 \
+            and dob.name =~/\S+/
+              @@firstseg=dob.name
+            end
+            if toc
+              begin
+                @@toc[:seg] << toc[:seg]
+                @@toc[:scr] << toc[:seg]
+                @@toc[:seg_mini] << toc[:seg_mini] if toc[:seg_mini]
+              rescue; SiSU_Errors::Info_error.new($!,$@,@md.opt.cmd,@md.fns).error
+              end
+            end
+          end
+        end
+        @@toc[:ncx] << @epub.toc_ncx.navpoint_close if @ncxo[4]
+        @@toc[:ncx] << @epub.toc_ncx.navpoint_close if @ncxo[3]
+        @@toc[:ncx] << @epub.toc_ncx.navpoint_close if @ncxo[2]
+        @ncxo[1],@ncxo[2],@ncxo[3],@ncxo[4]=false,false,false,false
+        md_opf_a_content << @epub.metadata_opf.manifest_images(@md.ec[:image])
+        @@toc[:seg] << "</div>\n</div>"
+        @@toc[:scr] << "</div>\n</div>"
+        @@toc[:ncx] << @epub.toc_ncx.navmap_close
+        @@toc[:ncx] << @epub.toc_ncx.close
+        @@toc[:opf] << md_opf_a_content << @epub.metadata_opf.manifest_close
+        @@toc[:opf] << @epub.metadata_opf.spine_open << md_opf_a_spine << @epub.metadata_opf.spine_close
+        @@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
+        Epub_output.new(@md,@@toc[:opf]).epub_metadata_opf
+        Epub_output.new(@md,@@toc[:ncx]).epub_toc_ncx
+        @md.firstseg=@@firstseg
+        @@toc
+      end
+      def minitoc
+        minitoc=@@toc[:seg_mini].join("\n")
+        '<div class="toc">' + minitoc + '</div>'
+      end
+    protected
+      def level_1
+        dob=@data
+        linkname,link=dob.obj.strip,dob.ocn
+        if link \
+        and link !~/#/ #% keep eye on link
+          p_num=SiSU_EPUB_Format::Paragraph_number.new(@md,link)
+        end
+        title=if dob.obj !~/Document Information/; linkname
+        else
+          link='metadata'
+          %{<b><a href="#{link}#{Sfx[:epub_xhtml]}">#{linkname}</a></b>}
+        end
+        toc={}
+        txt_obj={ txt: title }
+        format_toc=SiSU_EPUB_Format::Format_toc.new(@md,txt_obj)
+        toc[:seg]=if dob.name =~/^meta/ \
+        and dob.obj =~/Document Information/ #check
+          format_toc.lev0
+        else format_toc.lev1
+        end
+        toc[:seg_mini]=if dob.name =~/^meta/ \
+        and dob.obj =~/Document Information/ #check
+          x=if @md.concord_make
+            format_toc.mini_concord_tail
+          else format_toc.mini_tail
+          end
+        else format_toc.mini_lev1
+        end
+        title=if dob.ocn ==0
+          if dob.name =~/^meta/ \
+          and dob.obj =~/Document Information/
+            %{<a href="#docinfo">#{linkname}</a>}
+          else linkname
+          end
+        else
+          @@toc[:scr] <<  '<br />'
+          link=if dob.ln; dob.ln
+          else ''
+          end
+          %{<b><a href="##{link}">#{linkname}</a></b>}
+        end
+        txt_obj={ txt: title }
+        format_toc=SiSU_EPUB_Format::Format_toc.new(@md,txt_obj)
+        toc[:scr]=if dob.name =~/^meta/ \
+        and dob.obj =~/Document Information/
+          format_toc.lev0
+        else format_toc.lev1
+        end
+        toc
+      end
+      def level_2
+        dob=@data
+        linkname,ocn=dob.obj.strip,dob.ocn
+        if ocn \
+        and ocn !~/#/
+          p_num=SiSU_EPUB_Format::Paragraph_number.new(@md,ocn)
+        end
+        txt_obj={ txt: linkname }
+        format_toc=SiSU_EPUB_Format::Format_toc.new(@md,txt_obj)
+        toc={}
+        toc[:seg]=format_toc.lev2
+        toc[:seg_mini]=format_toc.mini_lev2
+        if p_num
+          title=%{#{p_num.goto}#{linkname}</a>}
+          txt_obj={ txt: title }
+          format_toc=SiSU_EPUB_Format::Format_toc.new(@md,txt_obj)
+          toc[:scr]=format_toc.lev2
+        end
+        toc
+      end
+      def level_3
+        dob=@data
+        linkname,ocn=dob.obj.strip,dob.ocn
+        if ocn \
+        and ocn !~/#/
+          p_num=SiSU_EPUB_Format::Paragraph_number.new(@md,ocn)
+        end
+        txt_obj={ txt: linkname }
+        format_toc=SiSU_EPUB_Format::Format_toc.new(@md,txt_obj)
+        toc={}
+        toc[:seg]=format_toc.lev3
+        toc[:seg_mini]=format_toc.mini_lev3
+        if p_num
+          title=%{#{p_num.goto}#{linkname}</a>}
+          txt_obj={ txt: title }
+          format_toc=SiSU_EPUB_Format::Format_toc.new(@md,txt_obj)
+          toc[:scr]=format_toc.lev3
+        end
+        toc
+      end
+      def level_4
+        dob=@data
+        linkname,ocn=dob.obj.strip,dob.ocn
+        p_num=SiSU_EPUB_Format::Paragraph_number.new(@md,ocn) if ocn
+        if dob.ln==4
+          seg_link=%{  <a href="#{dob.name}#{Sfx[:epub_xhtml]}">
+    #{dob.obj}
+  </a> }
+          @@seg_url=dob.name
+        elsif dob.obj =~/\d+.\d+.\d+.\d+|\d+.\d+.\d+|\d+.\d+|\d+/
+          seg_link=dob.obj.gsub(/^(\d+.\d+.\d+.\d+|\d+.\d+.\d+|\d+.\d+|\d+)(.*)/,
+            %{<a href="\\1#{Sfx[:epub_xhtml]}">} +
+            %{\\1 \\2</a> })
+        end
+        p_num=SiSU_EPUB_Format::Paragraph_number.new(@md,ocn) if ocn
+        txt_obj={ txt: seg_link }
+        format_toc=SiSU_EPUB_Format::Format_toc.new(@md,txt_obj)
+        toc={}
+        toc[:seg]=format_toc.lev4
+        toc[:seg_mini]=format_toc.mini_lev4
+        title=%{#{p_num.goto}#{linkname}</a>} if p_num
+        txt_obj={ txt: title }
+        format_toc=SiSU_EPUB_Format::Format_toc.new(@md,txt_obj)
+        toc[:scr]=format_toc.lev4
+        toc
+      end
+      def level_5
+        dob=@data
+        linkname,ocn=dob.obj.strip,dob.ocn
+        toc={}
+        if ocn \
+        and ocn !~/#/
+          p_num=SiSU_EPUB_Format::Paragraph_number.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::Format_toc.new(@md,txt_obj)
+          toc[:seg]=format_toc.lev5
+          toc[:seg_mini]=format_toc.mini_lev5
+          title=%{#{p_num.goto}#{linkname}</a>}
+          txt_obj={ txt: title }
+          format_toc=SiSU_EPUB_Format::Format_toc.new(@md,txt_obj)
+          toc[:scr]=format_toc.lev5
+        end
+        toc
+      end
+      def level_6
+        dob=@data
+        linkname,ocn=dob.obj.strip,dob.ocn
+        toc={}
+        if ocn \
+        and ocn !~/#/
+          p_num=SiSU_EPUB_Format::Paragraph_number.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::Format_toc.new(@md,txt_obj)
+          toc[:seg]=format_toc.lev6
+          toc[:seg_mini]=format_toc.mini_lev6
+          title=%{#{p_num.goto}#{linkname}</a>}
+          txt_obj={ txt: title }
+          format_toc=SiSU_EPUB_Format::Format_toc.new(@md,txt_obj)
+          toc[:scr]=format_toc.lev6
+        end
+        toc
+      end
+      def level_crosslink
+        dob=@data
+        if dob !~/^4~!/
+          dob.gsub!(/^4~!\s+(\S+)\s+(.+)/,
+            %{<table><tr><td width =\"80\"></td>
+  <td><a href="http://\\1">
+    #{@png.crosslink_ext}
+      &nbsp;&nbsp;\\2
+    <\/a>
+  </td></tr></table>
+})
+        else
+          dob.gsub!(/^4~!\s+(\S+)\s+(.+)/,
+            %{<table><tr><td width ="80">
+  </td><td>
+    <a href="\\1">
+      #{@png.crosslink}
+        &nbsp;&nbsp;\\2
+    <\/a>
+  </td></tr></table>
+})
+        end
+      end
+    end
+    class Scroll_head_and_segtoc < Toc
+      def initialize(md='',toc='',links_guide_toc='')
+        @md,@toc,@links_guide_toc=md,toc,links_guide_toc
+        @vz=SiSU_Env::Get_init.instance.skin
+      end
+      def in_common
+        toc_shared=[]
+        segtoc=[]
+        SiSU_Screen::Ansi.new(@md.opt.cmd,'Scroll & Segtoc').txt_grey if @md.opt.cmd =~/[MVv]/
+        format_head_toc=SiSU_EPUB_Format::Head_toc.new(@md)
+        dochead=format_head_toc.head
+        dochead.gsub!(/toc\.(html)/,'doc.\1') #kludge
+        toc_shared << dochead #<< ads.div.major
+        segtoc << format_head_toc.head #<< ads.div.major
+        if SiSU_EPUB_Format::Head_toc.method_defined? :toc_head_escript
+          toc_shared << format_head_toc.toc_head_escript
+          segtoc << format_head_toc.toc_head_escript
+        end
+        if defined? @md.rights.all \
+        and @md.rights.all
+          rights=format_head_toc.rights.all
+          rights=SiSU_EPUB_Tune::Clean_xhtml.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::Clean_xhtml.new(prefix_b).clean
+        end
+        seg_toc_band=format_head_toc.seg_head_navigation_band
+        seg_toc_band_bottom=format_head_toc.seg_head_navigation_band_bottom
+        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::Format_text_object.new(@md,txt_obj)
+        toc_shared << format_txt_obj.center_bold
+        segtoc << format_txt_obj.center_bold
+        if defined? @md.creator.author \
+        and @md.creator.author
+          creator_endnote=@md.creator.author.gsub(/(\*+)/,%{&nbsp;<sup><a href="#notes">\\1</a></sup>})
+          tmp_head=creator_endnote + "\n"
+          txt_obj={ txt: tmp_head }
+          format_txt_obj=SiSU_EPUB_Format::Format_text_object.new(@md,txt_obj)
+          toc_shared << format_txt_obj.center_bold
+          segtoc << format_txt_obj.center_bold
+        end
+        segtoc << seg_toc_band
+        tmp_head=nil
+        if defined? @md.prefix_a \
+        and @md.prefix_a
+          tmp_head ||= %{#{@md.prefix_a}\n}
+          toc_shared << tmp_head.dup
+          segtoc << tmp_head.dup
+        end
+        tmp_head=nil
+        toc_shared << @links_guide_toc
+        if defined? @md.rights.all \
+        and @md.rights.all
+          toc_shared << rights
+        end
+        if defined? @md.prefix_b \
+        and @md.prefix_b
+          toc_shared << prefix_b
+        end
+        #Table of Contents added/appended here
+        toc_shared << @toc[:scr]
+        segtoc << @links_guide_toc
+        segtoc << @toc[:seg]
+        if defined? @md.rights.all \
+        and @md.rights.all
+          segtoc << rights
+        end
+        if defined? @md.prefix_b \
+        and @md.prefix_b
+          segtoc << prefix_b
+        end
+        #Segtoc tail added here
+        segtoc << seg_toc_band_bottom
+        segtoc << format_head_toc.xhtml_close
+        segtoc.flatten!.compact!
+        Epub_output.new(@md,segtoc).segtoc
+        segtoc=[]
+        @toc[:scr],@toc[:seg]=[],[]
+        toc_shared
+      end
+    end
+    class Table < SiSU_XHTML_table::Table_xhtml
+    end
+    class Seg < SiSU_EPUB_seg::Seg
+    end
+    class Epub_output
+      def initialize(md,output='')
+        @md,@output=md,output
+        @epub_doc="#{@md.fnb}.epub"
+        @epub_header=SiSU_EPUB_Format::Head_information.new(@md)
+        @make=SiSU_Env::Create_file.new(@md.fns)
+      end
+      def songsheet
+        mimetype
+        metainf_container
+        css
+        images if @md.ec[:image]
+       #concordance #uncomment to enable inclusion of concordance file
+        output_zip
+      end
+      def mimetype
+        out=@make.epub.mimetype
+        out<<@epub_header.mimetype
+        out.close
+      end
+      def metainf_container #container.xml file in META-INF directory
+        out=@make.epub.metainf_cont
+        out<<@epub_header.metainf_container
+        out.close
+      end
+      def css
+        out=@make.epub.xhtml_css
+        out << SiSU_EPUB_Format::Css.new.css_epub_xhtml
+        out.close
+      end
+      def epub_toc_ncx
+        begin
+          out=@make.epub.toc_ncx
+          @output.each do |para|
+            unless para =~/\A\s*\Z/
+              out.puts para
+            end
+          end
+          out.close
+        rescue; SiSU_Errors::Info_error.new($!,$@,@md.opt.cmd,@md.fns).error
+        end
+      end
+      def epub_metadata_opf
+        begin
+          out=@make.epub.metadata
+          @output.each do |para|
+            unless para =~/\A\s*\Z/
+              out.puts para
+            end
+          end
+          out.close
+        rescue; SiSU_Errors::Info_error.new($!,$@,@md.opt.cmd,@md.fns).error
+        end
+      end
+      def images
+        img_pth=@md.env.path.image_source_include
+        @md.ec[:image].each do |x|
+          if FileTest.directory?("#{@md.env.processing_path.epub}/#{Ep[:d_oebps]}/image") \
+          && FileTest.file?("#{@md.file.output_path.epub.rel_image}/#{x}")
+            FileUtils::cp("#{@md.file.output_path.epub.rel_image}/#{x}","#{@md.env.processing_path.epub}/#{Ep[:d_oebps]}/image")
+          elsif FileTest.directory?("#{@md.env.processing_path.epub}/#{Ep[:d_oebps]}/image") \
+          && FileTest.file?("#{img_pth}/#{x}")
+            FileUtils::cp("#{img_pth}/#{x}","#{@md.env.processing_path.epub}/#{Ep[:d_oebps]}/image")
+          end
+        end
+      end
+      def concordance
+        SiSU_EPUB_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)
+        if FileTest.directory?(@md.env.processing_path.epub)
+          pwd=Dir.pwd
+          Dir.chdir(@md.env.processing_path.epub)
+          system("
+            zip -qXr9D #{@epub_doc} *
+          ")
+          FileUtils::mv(@epub_doc, @md.file.place_file.epub.dir)
+          Dir.chdir(pwd)
+          unless @md.opt.cmd.inspect =~/M/
+            FileUtils::rm_r(@md.env.processing_path.epub)
+          end
+        end
+      end
+      def segtoc
+        begin
+          filename_html_segtoc=@make.epub.xhtml_segtoc
+          filename_html_index=@make.epub.xhtml_index
+          @output.each do |para|
+            para.strip!
+            unless para =~/\A\s*\Z/
+              filename_html_segtoc.puts para,"\n"
+              filename_html_index.puts para,"\n"
+            end
+          end
+          filename_html_segtoc.close
+          filename_html_index.close
+        rescue; SiSU_Errors::Info_error.new($!,$@,@md.opt.cmd,@md.fns).error
+        end
+      end
+    end
+  end
+end
+__END__