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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 - 2011, 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: preprocessing, (document abstraction), data abstraction used
   in subsequent processing

=end
module SiSU_DAL
  require "#{SiSU_lib}/defaults"                           # defaults.rb
    include SiSU_Viz
  require "#{SiSU_lib}/sysenv"                             # sysenv.rb
    include SiSU_Env
  require "#{SiSU_lib}/param"                              # param.rb
    include SiSU_Param
  require "#{SiSU_lib}/dal_doc_objects"                    # dal_doc_objects.rb
  require "#{SiSU_lib}/dal_syntax"                         # dal_syntax.rb
    include SiSU_Syntax
  require "#{SiSU_lib}/dal_doc_str"                        # dal_doc_str.rb
  require "#{SiSU_lib}/dal_idx"                            # dal_idx.rb
  require "#{SiSU_lib}/dal_numbering"                      # dal_numbering.rb
  require "#{SiSU_lib}/dal_hash_digest"                    # dal_hash_digest.rb
  require "#{SiSU_lib}/dal_endnotes"                       # dal_endnotes.rb
  require "#{SiSU_lib}/dal_images"                         # dal_images.rb
  require "#{SiSU_lib}/dal_metadata"                       # dal_metadata.rb
  require "#{SiSU_lib}/dal_character_check"                # dal_character_check.rb
  require "#{SiSU_lib}/dal_substitutions_and_insertions"   # dal_substitutions_and_insertions.rb
  require "#{SiSU_lib}/dal_expand_insertions"              # dal_expand_insertions.rb
  require "#{SiSU_lib}/i18n"                               # i18n.rb
  require "#{SiSU_lib}/shared_sem"                         # shared_sem.rb
  class Instantiate < SiSU_Param::Parameters::Instructions
    def initialize
      @@flag_vocab=0
      @@line_mode=''
    end
  end
  class Source <Instantiate
    @@dal_array=[]
    @@idx_arr={:sst=>[],:tex=>[],:html=>[],:xhtml=>[]}
    @@map_arr={:nametags=>[],:ocn_htmlseg=>[]}
    @@fns=nil
    def initialize(opt,fnx=nil)
      @opt,@fnx=opt,fnx
      @@fns||@opt.fns
      @make_fns=if @fnx and @fnx =~/\.ss[tmi]$/
        SiSU_Env::Info_file.new(@fnx)
      else
        SiSU_Env::Info_file.new(@opt.fns)
      end
      @fnm=@make_fns.marshal.dal_metadata
      @fnc=@make_fns.marshal.dal_content
      @idx_sst=@make_fns.marshal.dal_idx_sst_rel_html_seg
      @idx_tex=@make_fns.marshal.dal_idx_sst_rel
      @idx_html=@make_fns.marshal.dal_idx_html
      @idx_xhtml=@make_fns.marshal.dal_idx_xhtml
      @map_nametags=@make_fns.marshal.dal_map_nametags
      @map_ocn_htmlseg=@make_fns.marshal.dal_map_ocn_htmlseg
      SiSU_Env::Create_system_link.new.images
      @env=SiSU_Env::Info_env.new
    end
    def read                                                                   #creates dal
      begin
        dal=[]
        @@dal_array=[]
        @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
        ? @fnx \
        : @opt.fns
        create_dal
      rescue; SiSU_Errors::Info_error.new($!,$@,@opt.cmd,@@fns).error
      ensure
        Instantiate.new
      end
    end
    def get                                                                    #reads dal, unless does not exist then creates first
      begin
        dal=[]
        unless @@fns==@opt.fns \
        or @@fns==@fnx
          @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
          ? @fnx \
          : @opt.fns
          @@dal_array=[]
        end
        dal=(@@dal_array.empty?) ? read_fnc : @@dal_array.dup
      rescue; SiSU_Errors::Info_error.new($!,$@,@opt.cmd,@opt.fns).error
      ensure
        Instantiate.new
      end
    end
    def get_idx_sst                                                            #reads dal idx.sst, #unless does not exist then creates first
      begin
        dal=[]
        unless @@fns==@opt.fns \
        or @@fns==@fnx
          @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
          ? @fnx \
          : @opt.fns
          @@idx_arr[:sst]=[]
        end
        dal=(@@idx_arr[:sst].empty?) ? read_idx_sst : @@idx_arr[:sst].dup #check
      rescue; SiSU_Errors::Info_error.new($!,$@,@opt.cmd,@opt.fns).error
      ensure
        Instantiate.new
      end
    end
    def get_idx_tex                                                            #reads dal idx.tex, #unless does not exist then creates first
      begin
        dal=[]
        unless @@fns==@opt.fns \
        or @@fns==@fnx
          @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
          ? @fnx \
          : @opt.fns
          @@idx_arr[:tex]=[]
        end
        dal=(@@idx_arr[:tex].empty?) ? read_idx_tex : @@idx_arr[:tex].dup #check
      rescue; SiSU_Errors::Info_error.new($!,$@,@opt.cmd,@opt.fns).error
      ensure
        Instantiate.new
      end
    end
    def get_idx_html                                                           #reads dal idx.html, #unless does not exist then creates first
      begin
        dal=[]
        unless @@fns==@opt.fns \
        or @@fns==@fnx
          @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
          ? @fnx \
          : @opt.fns
          @@idx_arr[:html]=[]
        end
        dal=(@@idx_arr[:html].empty?) ? read_idx_html : @@idx_arr[:html].dup
      rescue; SiSU_Errors::Info_error.new($!,$@,@opt.cmd,@opt.fns).error
      ensure
        Instantiate.new
      end
    end
    def get_idx_xhtml                                                          #reads dal idx.xhtml, #unless does not exist then creates first
      begin
        dal=[]
        unless @@fns==@opt.fns \
        or @@fns==@fnx
          @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
          ? @fnx \
          : @opt.fns
          @@idx_arr[:xthml]=[]
        end
        dal=(@@idx_arr[:xhtml].empty?) ? read_idx_xhtml : @@idx_arr[:xhtml].dup
      rescue; SiSU_Errors::Info_error.new($!,$@,@opt.cmd,@opt.fns).error
      ensure
        Instantiate.new
      end
    end
    def get_map_nametags                                                       #reads dal map.nametags, #unless does not exist then creates first
      begin
        dal=[]
        unless @@fns==@opt.fns \
        or @@fns==@fnx
          @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
          ? @fnx \
          : @opt.fns
          @@map_arr[:nametags]=[]
        end
        dal=(@@map_arr[:nametags].empty?) ? read_map_nametags : @@map_arr[:nametags].dup
      rescue; SiSU_Errors::Info_error.new($!,$@,@opt.cmd,@opt.fns).error
      ensure
        Instantiate.new
      end
    end
    def get_map_ocn_htmlseg                                                    #reads dal map.ocn_htmlseg, #unless does not exist then creates first
      begin
        dal=[]
        unless @@fns==@opt.fns \
        or @@fns==@fnx
          @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
          ? @fnx \
          : @opt.fns
          @@map_arr[:ocn_htmlseg]=[]
        end
        dal=(@@map_arr[:ocn_htmlseg].empty?) ? read_map_ocn_htmlseg : @@map_arr[:ocn_htmlseg].dup
      rescue; SiSU_Errors::Info_error.new($!,$@,@opt.cmd,@opt.fns).error
      ensure
        Instantiate.new
      end
    end
  protected
    def create_dal
      dal_array=[]
      unless @opt.cmd =~/q/
        tell=(@opt.cmd=~/[vVM]/) \
        ? SiSU_Screen::Ansi.new(@opt.cmd,'Document Abstraction') \
        : SiSU_Screen::Ansi.new(@opt.cmd,'Document Abstraction',@opt.fns)
        tell.green_title_hi
      end
      fn=(@fnx && @fnx =~/\.ss[tmi]$/) \
      ? @fnx \
      : @opt.fns
      file_array=@env.read_source_file(fn)
      file_array.each do |l|
        if l =~/\r\n/; l.gsub!(/\r\n/,"\n")
        end
      end
      meta=file_array.dup
      meta=meta.join.split("\n\n") #check whether can be eliminated, some of these are large objects to have twice
      @md=SiSU_Param::Parameters::Instructions.new(meta,@opt).extract
      meta=nil
      dal=SiSU_DAL::Make.new(fn,@md,file_array).song
      if @opt.cmd =~/[vM]/
        cf=SiSU_Env::Create_file.new(fn)
        SiSU_Screen::Ansi.new(@opt.cmd,@opt.fns,"~meta/#{@opt.fns}.meta").output if @opt.cmd =~/v/i
        SiSU_Screen::Ansi.new(@opt.cmd,"dal -> #{cf.meta}").txt_grey if @opt.cmd =~/M/
      end
      dal.each{|s| dal_array << s}
      dal_array
    end
    def read_fnm
      dal=[]
      dal=if FileTest.file?(@fnm)
        (RUBY_VERSION < '1.9') \
        ? (File.open(@fnm){ |f| dal=Marshal.load(f)}) \
        : (File.open(@fnm,'r:utf-8'){ |f| dal=Marshal.load(f)})
      else SiSU_DAL::Source.new(@opt).create_dal
      end
    end
    def read_fnc
      dal=[]
      dal=if FileTest.file?(@fnc)
        (RUBY_VERSION < '1.9') \
        ? (File.open(@fnc){ |f| dal=Marshal.load(f)}) \
        : (File.open(@fnc,'r:utf-8'){ |f| dal=Marshal.load(f)})
      else SiSU_DAL::Source.new(@opt).create_dal
      end
    end
    def read_idx_sst
      m=[]
      m=if FileTest.file?(@idx_sst)
        (RUBY_VERSION < '1.9') \
        ? (File.open(@idx_sst){ |f| m=Marshal.load(f)}) \
        : (File.open(@idx_sst,'r:utf-8'){ |f| m=Marshal.load(f)})
      else nil
      end
    end
    def read_idx_tex
      m=[]
      m=if FileTest.file?(@idx_tex)
        (RUBY_VERSION < '1.9') \
        ? (File.open(@idx_tex){ |f| m=Marshal.load(f)}) \
        : (File.open(@idx_tex,'r:utf-8'){ |f| m=Marshal.load(f)})
      else nil
      end
    end
    def read_idx_html
      m=[]
      m=if FileTest.file?(@idx_html)
        (RUBY_VERSION < '1.9') \
        ? (File.open(@idx_html){ |f| m=Marshal.load(f)}) \
        : (File.open(@idx_html,'r:utf-8'){ |f| m=Marshal.load(f)})
      else nil
      end
    end
    def read_idx_xhtml
      m=[]
      m=if FileTest.file?(@idx_xhtml)
        (RUBY_VERSION < '1.9') \
        ? (File.open(@idx_xhtml){ |f| m=Marshal.load(f)}) \
        : (File.open(@idx_xhtml,'r:utf-8'){ |f| m=Marshal.load(f)})
      else nil
      end
    end
    def read_map_nametags
      m=[]
      m=if FileTest.file?(@map_nametags)
        (RUBY_VERSION < '1.9') \
        ? (File.open(@map_nametags){ |f| m=Marshal.load(f)}) \
        : (File.open(@map_nametags,'r:utf-8'){ |f| m=Marshal.load(f)})
      else nil
      end
    end
    def read_map_ocn_htmlseg
      m=[]
      m=if FileTest.file?(@map_ocn_htmlseg)
        (RUBY_VERSION < '1.9') \
        ? (File.open(@map_ocn_htmlseg){ |f| m=Marshal.load(f)}) \
        : (File.open(@map_ocn_htmlseg,'r:utf-8'){ |f| m=Marshal.load(f)})
      else nil
      end
    end
  end
  class Output
    def initialize(fn,md,data)
      @fn,@md,@data=fn,md,data
      @cf=SiSU_Env::Create_file.new(@fn)
      @make=SiSU_Env::Info_file.new(@fn)
      @dir=SiSU_Env::Info_env.new(@fn)
    end
    def screen_dump(o)
      if defined? o.of
        print %{OF: #{o.of}; }
      end
      if defined? o.is
        print %{IS: #{o.is}; }
      end
      if defined? o.ocn
        print %{OCN: #{o.ocn}; }
      end
      if defined? o.node
        print %{NODE: #{o.node}; }
      end
      if defined? o.parent
        print %{Parent: #{o.parent}; }
      end
      if defined? o.obj and not o.obj.empty?
        puts %{\n#{o.obj}; }
      else "\n"
      end
    end
    def screen_print(t_o)
      if defined? t_o
        print ' ' + t_o.to_s
      end
    end
    def screen_output(data)
      data.each do |o|
        print o.class
        screen_print(o.ocn)
        screen_print(o.obj)
        puts "\n"
      end
    end
    def hard_output
      if @md.cmd =~/M/
        filename_meta=@cf.metaverse.file_meta
        @data.each {|o| filename_meta.puts o.inspect.sub(/:0x[0-9a-f]{8}\s/,': ')} #to make diffing easier
        filename_txt=@cf.metaverse.file_txt
        @data.each do |o|
          if defined? o.ocn
            filename_txt.puts case o.is
            when 'heading'
              "[#{o.is} #{o.lv}~#{o.name} [#{o.ocn}]] #{o.obj}"
            else "[#{o.is} [#{o.ocn}]] #{o.obj}"
            end
          else
            filename_txt.puts case o.is
            when 'meta'
              "[m~#{o.tag}] #{o.obj}"
            else "[#{o.is}] #{o.obj}"
            end
          end
        end
        filename_debug=@cf.file_debug
        @data.each do |o|
          if defined? o.ocn
            case o.is
            when 'heading'
              filename_debug.puts "#{o.is} #{o.lv}~#{o.name} odv=#{o.odv} osp=#{o.osp} [#{o.ocn}] -->\n\t#{o.obj}"
            end
          end
        end
      else
        hard="#{@dir.path.dal}/#{@md.fns}.meta"
        File.unlink(hard) if FileTest.file?(hard)
        hard="#{@dir.path.dal}/#{@md.fns}.txt"
        File.unlink(hard) if FileTest.file?(hard)
        hard="#{@dir.path.dal}/#{@md.fns}.debug.txt"
        File.unlink(hard) if FileTest.file?(hard)
      end
    end
    def make_marshal_content
      marshal_dal=@make.marshal.dal_content
      File.open(marshal_dal,'w'){|f| Marshal.dump(@data,f)} if @data.class==Array
    end
    def make_marshal_metadata
      marshal_dal=@make.marshal.dal_metadata
      File.open(marshal_dal,'w'){|f| Marshal.dump(@data,f)} if @data.class==Array
    end
    def idx_html_hard_output
      if @md.book_idx \
      and @md.cmd =~/M/
        filename_meta=@cf.file_meta_idx_html
        unless @data.nil? #REMOVE earliest possible
          @data.each {|s| p s.inspect + "\n" unless s.class==String}
          @data.each {|s| filename_meta.puts s.strip + "\n" unless s.strip.empty?}
        end
      else
        hard_idx_html="#{@dir.path.dal}/#{@md.fns}.idx.html"
        File.unlink(hard_idx_html) if FileTest.file?(hard_idx_html)
      end
    end
    def make_marshal_idx_sst_html_seg
      marshal_dal=@make.marshal.dal_idx_sst_rel_html_seg
      File.open(marshal_dal,'w'){|f| Marshal.dump(@data,f)} if @data.class==Array
    end
    def make_marshal_idx_sst_rel
      marshal_dal=@make.marshal.dal_idx_sst_rel
      File.open(marshal_dal,'w'){|f| Marshal.dump(@data,f)} if @data.class==Array
    end
    def make_marshal_idx_html
      marshal_dal=@make.marshal.dal_idx_html
      File.open(marshal_dal,'w'){|f| Marshal.dump(@data,f)} if @data.class==Array
    end
    def make_marshal_idx_xhtml
      marshal_dal=@make.marshal.dal_idx_xhtml
      File.open(marshal_dal,'w'){|f| Marshal.dump(@data,f)} if @data.class==Array
    end
    def make_marshal_map_nametags
      marshal_dal=@make.marshal.dal_map_nametags
      File.open(marshal_dal,'w'){|f| Marshal.dump(@data,f)} if @data.class==Hash
    end
    def make_marshal_map_name_ocn_htmlseg
      marshal_dal=@make.marshal.dal_map_ocn_htmlseg
      File.open(marshal_dal,'w'){|f| Marshal.dump(@data,f)} if @data.class==Hash
    end
  end
  class Make
    def initialize(fn,md,data)
      @fn,@md,@data=fn,md,data
      @env=SiSU_Env::Info_env.new(@md.fns)
    end
    def reset
      @@flag_vocab=0
      @@line_mode=''
    end
    def song
      reset
      data=@data
      data=data.join.split("\n\n")
      data=SiSU_insertions::Insertions.new(@md,data).expand_insertions?                                                # dal_expand_insertions.rb
      data=SiSU_substitute_and_insert::SI.new(@md,data).substitutions_and_insertions?                                  # dal_substitutions_and_insertions.rb
      data,metadata=SiSU_document_structure_extract::Build.new(@md,data).identify_parts                                # dal_doc_str.rb
      data=SiSU_Syntax::Markup.new(@md,data).songsheet                                                                 # dal_syntax.rb
      data,endnote_array=SiSU_character_check::Check.new(data).character_check_and_oldstyle_endnote_array              # dal_character_check.rb
      data=SiSU_images::Images.new(@md,data).images                                                                    # dal_images.rb
      data,tags_map,ocn_html_seg_map=SiSU_numbering::Numbering.new(@md,data).numbering_song                            # dal_numbering.rb
      data,book_index_rel,book_index_rel_html_seg,html_idx,xhtml_idx=SiSU_book_index::Book_index.new(@md,data,@env).indexing_song if @md.book_idx  # dal_idx.rb
      data=SiSU_endnotes::Endnotes.new(@md,data,endnote_array).endnotes                                                # dal_endnotes.rb
      outputdata=data
      if @md.cmd =~/[mM]/
        SiSU_DAL::Output.new(@fn,@md,outputdata).hard_output
        SiSU_DAL::Output.new(@fn,@md,outputdata).make_marshal_content
        SiSU_DAL::Output.new(@fn,@md,metadata).make_marshal_metadata
        SiSU_DAL::Output.new(@fn,@md,html_idx).idx_html_hard_output
        SiSU_DAL::Output.new(@fn,@md,book_index_rel_html_seg).make_marshal_idx_sst_html_seg
        SiSU_DAL::Output.new(@fn,@md,book_index_rel).make_marshal_idx_sst_rel
        SiSU_DAL::Output.new(@fn,@md,html_idx).make_marshal_idx_html
        SiSU_DAL::Output.new(@fn,@md,xhtml_idx).make_marshal_idx_xhtml
        SiSU_DAL::Output.new(@fn,@md,tags_map).make_marshal_map_nametags
        SiSU_DAL::Output.new(@fn,@md,ocn_html_seg_map).make_marshal_map_name_ocn_htmlseg
      end
      reset
      outputdata
    end
  protected
  end
end
__END__