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path: root/lib/sisu/v5/ao_idx.rb
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# 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, 2014 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_idx.rb;hb=HEAD>

 * Ralph Amissah
   <ralph@amissah.com>
   <ralph.amissah@gmail.com>

 ** Description: system environment, resource control and configuration details

=end
module SiSU_AO_BookIndex
  class BookIndex
    def initialize(md,data,env=nil)
      @md,@data,@env=md,data,env
      @rgx_idx=/#{Mx[:idx_o]}(?:.+?)#{Mx[:idx_c]}\s*/
      @rgx_idx_ocn_seg=/(.+?)~(\d+)~(\S+)/
      @rgx_idx_ocn=/(.+?)~(\d+)/
      @ocn_html_identifier=
        SiSU_Env::ProcessingSettings.new(@md).ocn_html_identifier
      @env ||=SiSU_Env::InfoEnv.new(@md.fns)
    end
    def indexing_song
      data=@data
      data,
        sisu_markup_idx_rel,
        sisu_markup_idx_rel_html_seg,
        html_idx,xhtml_idx=
          extract_book_index(data)
      data=
        clean_and_insert_index(
          data,
          sisu_markup_idx_rel_html_seg
        )
      [
        data,
        sisu_markup_idx_rel,
        sisu_markup_idx_rel_html_seg,
        html_idx,
        xhtml_idx,
      ]
    end
    def extract_book_index(data)
      tuned_file=[]
      idx_array=[]
      data.each do |dob|
        if (dob.is ==:heading \
        || dob.is ==:heading_insert) \
        && dob.ln==4
          @seg=dob.name
        end
        if defined? dob.idx \
        and dob.idx.is_a?(Hash)
          idx_array << {
            idx: dob.idx,
            ocn: dob.ocn,
            seg: @seg
          }
        end
        tuned_file << dob if dob
      end
      if idx_array.length > 0
        the_idx=construct_book_index(idx_array)
        if @md.book_idx
          idx=index(the_idx)
          sisu_markup_idx_rel,sisu_markup_idx_rel_html_seg,html_idx,  xhtml_idx=
            idx[:sst_rel],    idx[:sst_rel_html_seg],      idx[:html],idx[:xhtml]
        else
          sisu_markup_idx_rel=
            sisu_markup_idx_rel_html_seg=
            html_idx=
            xhtml_idx=
            nil
        end
      end
      [
        tuned_file,
        sisu_markup_idx_rel,
        sisu_markup_idx_rel_html_seg,
        html_idx,
        xhtml_idx,
      ]
    end
    def construct_book_index(idx_array)
      the_idx={}
      idx_array.each do |idx|
        idx[:idx].each_pair do |term,term_info|
          location=(term_info[:plus].to_i > 0) \
          ? (%{#{idx[:ocn]}-#{idx[:ocn].to_i + term_info[:plus].to_i}})
          : idx[:ocn].to_s
          the_idx[term]={} \
            unless the_idx[term] \
            and defined? the_idx[term]
          the_idx[term]['node_0_terms']=[] \
            unless the_idx[term]['node_0_terms'] \
            and defined? the_idx[term]['node_0_terms']
          the_idx[term]['node_0_terms'] << { ocn: idx[:ocn], range: location, seg: idx[:seg] }
          if term_info[:sub].is_a?(Array) \
          and term_info[:sub].length > 0
            term_info[:sub].each do |y|
              y.each_pair do |subterm,subterm_info|
                location=(subterm_info[:plus].to_i > 0) \
                ? (%{#{idx[:ocn]}-#{idx[:ocn].to_i + subterm_info[:plus].to_i}})
                : idx[:ocn].to_s
                the_idx[term]={} \
                  unless the_idx[term] \
                  and defined? the_idx[term]
                the_idx[term]['node_0_terms']=[] \
                  unless the_idx[term]['node_0_terms']\
                  and    defined? the_idx[term]['node_0_terms']
                the_idx[term]['node_1_subterms']={} \
                  unless the_idx[term]['node_1_subterms'] \
                  and defined? the_idx[term]['node_1_subterms']
                the_idx[term]['node_1_subterms'][subterm]=[] \
                  unless the_idx[term]['node_1_subterms'][subterm] \
                  and defined? the_idx[term]['node_1_subterms'][subterm]
                the_idx[term]['node_1_subterms'][subterm] <<
                  { ocn: idx[:ocn], range: location, seg: idx[:seg] }
              end
            end
          end
        end
      end
      the_idx=the_idx.sort
      the_idx
    end
    def clean_xml(str)
      str=str.gsub(/&/,'&amp;')
      str
    end
    def index(the_idx)
      @x=1
      idx={}
      idx[:sst_rel_html_seg],idx[:sst_rel],idx[:html],idx[:xhtml]=
        [],                  [],           [],        []
      h={
        obj: Mx[:br_page]
      }
      o=SiSU_AO_DocumentStructure::ObjectLayout.new.break(h)
      idx[:sst_rel_html_seg] << o
      idx[:sst_rel] << o
      h={
        lv: '1',
        name: 'index',
        obj: "Index"
      }
      o=SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
      idx[:sst_rel_html_seg] << o
      idx[:sst_rel] << o
      h={
        lv: '4',
        name: 'idx',
        obj: " [Index] #{Mx[:pa_non_object_dummy_heading]}"
      }
      o=SiSU_AO_DocumentStructure::ObjectHeading.new.heading(h)
      idx[:sst_rel_html_seg] << o
      idx[:sst_rel] << o
      alph=%W[9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z]
      idx[:html] << '<p>'
      idx[:xhtml] << '<p>'
      alph.each do |x|
        if x =~/[0-9]/
          idx[:html] << ''
          idx[:xhtml] << ''
        else
          idx[:html] <<
            %{<a href="##{x}">#{x}</a>,#{$ep[:hsp]}}
          idx[:xhtml] <<
            %{<a href="##{x.downcase}">#{x}</a>,#{$ep[:hsp]}}
        end
      end
      idx[:html] << '</p>'
      idx[:xhtml] << '</p>'
      letter=alph.shift
      idx[:html] <<
        %{\n<p class="book_index_lev1"><a name="numeral"></a></p>}
      idx[:xhtml] <<
        %{\n<p class="letter" id="numeral">0 - 9</p>}
      the_idx.each do |i|
        i.each do |x|
          if x.is_a?(String)
            f=/^(\S)/.match(x)[1]
            if letter < f
              while letter < f
                if alph.length > 0
                  letter=alph.shift
                  idx[:html] <<
                    %{\n<p class="letter"><a name="#{letter}">#{letter}</a></p><p class="book_index_lev1"><a name="#{letter.downcase}"> </a></p>}
                  idx[:xhtml] <<
                    %{\n<p class="letter" id="#{letter.downcase}">#{letter}</p>}
                else break
                end
              end
            end
            idx[:sst_rel_html_seg] <<
              %{\n\n#{Mx[:fa_bold_o]}#{x},#{Mx[:fa_bold_c]} }
            idx[:sst_rel] <<
              %{\n\n#{Mx[:fa_bold_o]}#{x},#{Mx[:fa_bold_c]} }
            aname=x.gsub(/\s+/,'_')
            idx[:html] <<
              %{\n<p class="book_index_lev1"><a name="#{aname}"><b>#{x}</b></a>, }
            c=clean_xml(x.dup)
            idx[:xhtml] <<
              %{\n<p class="book_index_lev1"><b>#{c}</b>, }
            @o=idx[:sst_rel_html_seg].index(idx[:sst_rel_html_seg].last)
            @t=idx[:sst_rel].index(idx[:sst_rel].last)
            @q=idx[:html].index(idx[:html].last)
            @r=idx[:xhtml].index(idx[:xhtml].last)
            print "\n" + x + ', ' if @md.opt.act[:verbose_plus][:set]==:on
          elsif x.is_a?(Array)
            p 'array error? -->'
            print x
          elsif x.is_a?(Hash)
            if x['node_0_terms'].is_a?(Array)
              x['node_0_terms'].each do |a|
                if a[:range]
                  idx[:sst_rel_html_seg][@o]=
                    idx[:sst_rel_html_seg][@o] +
                    %{#{Mx[:lnk_o]}#{a[:range]}#{Mx[:lnk_c]}#{Mx[:rel_o]}/#{a[:seg]}.html##{@ocn_html_identifier}#{a[:ocn]}#{Mx[:rel_c]}, }
                  idx[:sst_rel][@t]=
                    idx[:sst_rel][@t] +
                    %{#{Mx[:lnk_o]}#{a[:range]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{a[:ocn]}#{Mx[:rel_c]}, }
                  idx[:html][@q]=
                    idx[:html][@q] +
                    %{<a href="#{a[:seg]}.html##{@ocn_html_identifier}#{a[:ocn]}">#{a[:range]}</a>, }
                  idx[:xhtml][@q]=
                    idx[:xhtml][@q] +
                    %{<a href="#{a[:seg]}.xhtml#o#{a[:ocn]}">#{a[:range]}</a>, }
                  print a[:range] + ', ' if @md.opt.act[:verbose_plus][:set]==:on
                elsif a[:ocn]
                  idx[:sst_rel_html_seg][@o]=
                    idx[:sst_rel_html_seg][@o] +
                    %{#{Mx[:lnk_o]}#{a[:ocn]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{a[:seg]}.html##{@ocn_html_identifier}#{a[:ocn]}#{Mx[:rel_c]}, }
                  idx[:sst_rel][@t]=
                    idx[:sst_rel][@t] +
                    %{#{Mx[:lnk_o]}#{a[:ocn]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{a[:ocn]}#{Mx[:rel_c]}, }
                  idx[:html][@q]=
                    idx[:html][@q] +
                    %{<a href="#{a[:seg]}.html##{@ocn_html_identifier}#{a[:ocn]}">#{a[:ocn]}</a>, }
                  idx[:xhtml][@q]=
                    idx[:xhtml][@q] +
                    %{<a href="#{a[:seg]}.xhtml#o#{a[:ocn]}">#{a[:ocn]}</a>, }
                  print a[:ocn] + ', ' if @md.opt.act[:verbose_plus][:set]==:on
                else p 'error'
                end
              end
              idx[:html][@q]=idx[:html][@q] + '</p>'
              idx[:xhtml][@r]=idx[:xhtml][@r] + '</p>'
            end
            if x['node_1_subterms']
             x['node_1_subterms'].sort.each do |k,y|
                if k !~/node_0_terms/
                  idx[:sst_rel_html_seg][@o]=
                    idx[:sst_rel_html_seg][@o] +
                    %{#{k}, }
                  idx[:sst_rel][@t]=
                    idx[:sst_rel][@t] +
                    %{#{k}, }
                  idx[:html][@q]=
                    idx[:html][@q] +
                    %{\n<p class="book_index_lev2">#{k}, }
                  c=clean_xml(k.dup)
                  idx[:xhtml][@r]=
                    idx[:xhtml][@r] +
                    %{\n<p class="book_index_lev2">#{c}, }
                  print "\n\t" + k + ', ' if @md.opt.act[:verbose_plus][:set]==:on
                  y.each do |z|
                    if z[:range]
                      idx[:sst_rel_html_seg][@o]=
                        idx[:sst_rel_html_seg][@o] +
                        %{#{Mx[:lnk_o]}#{z[:range]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{z[:seg]}.html##{@ocn_html_identifier}#{z[:ocn]}#{Mx[:rel_c]}, }
                      idx[:sst_rel][@t]=
                        idx[:sst_rel][@t] +
                        %{#{Mx[:lnk_o]}#{z[:range]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{z[:ocn]}#{Mx[:rel_c]}, }
                      idx[:html][@q]=
                        idx[:html][@q] +
                        %{<a href="#{z[:seg]}.html##{@ocn_html_identifier}#{z[:ocn]}">#{z[:range]}</a>, }
                      idx[:xhtml][@q]=
                        idx[:xhtml][@q] +
                        %{<a href="#{z[:seg]}.xhtml#o#{z[:ocn]}">#{z[:range]}</a>, }
                      print z[:range] + ', ' if @md.opt.act[:verbose_plus][:set]==:on
                    elsif z[:ocn]
                      idx[:sst_rel_html_seg][@o]=
                        idx[:sst_rel_html_seg][@o] +
                        %{#{Mx[:lnk_o]}#{z[:ocn]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{z[:seg]}.html##{@ocn_html_identifier}#{z[:ocn]}#{Mx[:rel_c]}, }
                      idx[:sst_rel][@t]=
                        idx[:sst_rel][@t] +
                        %{#{Mx[:lnk_o]}#{z[:ocn]}#{Mx[:lnk_c]}#{Mx[:rel_o]}#{z[:ocn]}#{Mx[:rel_c]}, }
                      idx[:html][@q]=
                        idx[:html][@q] +
                        %{<a href="#{z[:seg]}.html##{@ocn_html_identifier}#{z[:ocn]}">#{z[:ocn]}</a>, }
                      idx[:xhtml][@q]=
                        idx[:xhtml][@q] +
                        %{<a href="#{z[:seg]}.xhtml#o#{z[:ocn]}">#{z[:ocn]}</a>, }
                      print z[:ocn] + ', ' if @md.opt.act[:verbose_plus][:set]==:on
                    else p 'error'
                    end
                  end
                  idx[:html][@q]=idx[:html][@q] + '</p>'
                  idx[:xhtml][@r]=idx[:xhtml][@r] + '</p>'
                end
              end
            end
            @x +=1
          end
        end
      end
      print "\n" if @md.opt.act[:verbose_plus][:set]==:on
      idx
    end
    def screen_print(the_idx)
      the_idx.each do |i|
        i.each do |x|
          if x.is_a?(String)
            print "\n" + x + ', '
          elsif x.is_a?(Array)
            p 'array error? -->'
            print x
          elsif x.is_a?(Hash)
            if x['node_0_terms'].is_a?(Array)
              x['node_0_terms'].each do |a|
                if a[:range]
                  print a[:range] + ', '
                elsif a[:ocn]
                  print a[:ocn] + ', '
                else p 'error'
                end
              end
            end
            if x['node_1_subterms']
              x['node_1_subterms'].sort.each do |k,y|
                if k !~/node_0_terms/
                  print "\n\t" + k + ', '
                  y.each do |z|
                    if z[:range]
                      print z[:range] + ', '
                    elsif z[:ocn]
                      print z[:ocn] + ', '
                    else p 'error'
                    end
                  end
                end
              end
            end
          end
        end
      end
    end
    def output_idx(idx)
      if @md.book_idx
        path="#{@env.path.output}/#{@md.fnb}"
        Dir.mkdir(path) unless FileTest.directory?(path)
        puts "#{path}/#{@md.fn[:book_idx_html]} #{__FILE__}::#{__LINE__}"
        html_index_file=File.new("#{path}/#{@md.fn[:book_idx_html]}",'w')
        idx[:html].each {|x| html_index_file << x }
        html_index_file.close
      end
    end
    def clean_and_insert_index(data,sisu_markup_idx)
      tuned_file=[]
      data.each do |dob|
        tuned_file << dob
        if dob.obj =~/#{Mx[:br_endnotes]}/ \
        and sisu_markup_idx
          sisu_markup_idx.each do |idx|
            tuned_file << idx
          end
        end
      end
      tuned_file
    end
    def clean_index(data)                                  #check on use of dob
      tuned_file=[]
      data.each do |para|
        para=para.gsub(/\n*#{@rgx_idx}/m,'')
        tuned_file << para
      end
      tuned_file
    end
  end
end
__END__