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path: root/lib/sisu/src_po4a_sst_ao_sst_set.rb
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#encoding: utf-8
#- Name: SiSU
#
#  - Description: documents, structuring, processing, publishing, search
#    src
#
#  - Author: Ralph Amissah
#    <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, 2017, 2019,
#    2020, 2021, 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
#
#  - Homepages:
#    <http://www.sisudoc.org>
#
#  - Git
#    <https://git.sisudoc.org/projects/>
#    <https://git.sisudoc.org/projects/sisu>
#    <https://git.sisudoc.org/projects/sisu-markup>
module SiSU_Po4aUtils
  class Wrap
    def initialize(md,orig='',trans='',n_char_max=76,n_indent=0,n_hang=nil)
      @md,@orig,@trans,@n_char_max,@n_indent=
       md, orig, trans, n_char_max, n_indent
      @n_char_max_extend = n_char_max
      @br="\n"
      @n_hang=n_hang ? n_hang : @n_indent
      @po4a_identify_type='type: SiSU doc'
      #@po4a_identify_type='type: Plain text'
    end
    def line_wrap
      space=' '
      spaces_indent,spaces_hang=
        "#{@br}#{space*@n_indent}",space*@n_hang
      pot,i=[],0
      pot_array=(@trans.empty?) ? [@orig] : [@orig,@trans]
      pot_array.each do |pa|
        line=0
        out=[]
        out[line]=''
        @oldword='' #REMOVE @oldword
        pa=pa.gsub(/<br>/,' <br> ').
          gsub(/#{Mx[:br_nl]}/,"\n\n")
        words=pa.scan(/\n\n|\\\\\\|<br>|\S+/m)
        while words != ''
          word=words.shift
          if not word
            out[line] unless out[line].empty? #check
            break
          elsif word =~/\n\n/
            word="\n"
            @n_char_max_extend = @n_char_max + out[line].length
            line=line
          elsif (out[line].length + word.length) > (@n_char_max_extend - @n_indent) \
          and out[line] =~/\S+/
            @n_char_max_extend = @n_char_max
            out[line].squeeze!(' ')
            line += 1
          end
          if word
            out[line]=if out[line] \
            and out[line] !~/\S+$/m
              "#{out[line]}#{word}"
            elsif out[line] \
            and out[line] =~/\S+/
              "#{out[line]} #{word}"
            else "#{word.strip}"
            end
          end
          @oldword=word if word =~/\S+/
        end
        x=out.join(spaces_indent).gsub(/\A\n+/m,'').insert(0,spaces_hang)
        z=[]
        x.split(/\n/).each do |y|
          z << y
        end
        pot[i]=z.join("\n")
        i +=1
        pot
      end
      trans=(pot.length == 2) ? pot[1] : ''
      po_str=<<WOK
#{pot[0]}
WOK
#{trans}
      po_str
    end
    def no_line_wrap_block
      pot,i=[],0
      pot_array=(@trans.empty?) ? [@orig] : [@orig,@trans]
      pot_array.each do |pa|
        z=[]
        pa.split(/\n\n/).each do |y|
          z << y if not y.empty?
        end
        pot[i]=z.join("\n")
        i +=1
        pot
      end
      trans=(pot.length == 2) ? pot[1] : ''
      po_str=<<WOK
#{pot[0]}
WOK
#{trans}
      po_str
    end
    def line_wrap_indent1
      @n_indent,@n_hang=2,2
      line_wrap
    end
    def line_wrap_endnote
      @n_indent,@n_hang=4,2
      line_wrap
    end
    def array_wrap
      if @orig.is_a?(Array)
        @arr=[]
        @orig.each do |line|
          @arr << SiSU_TextUtils::Wrap.new(line,@n_char_max,@n_indent,@n_hang).line_wrap
        end
      end
      @arr
    end
  end
  class HeaderScan
    def initialize(md,para)
      @md,@p=md,para
    end
    def extract(tag,tag_content,type,attrib)
      if dc_tag \
      and dc_content
        [dc_tag,dc_content,{dc_tag=>dc_content}]
      else nil
      end
    end
    def header(tag,tag_content,type='',attrib='') #this will break stuff and must be tested thoroughly 20060825
      @tag,@tag_content,@type,@attrib=tag,tag_content,type,attrib
      def label #element
        @tag
      end
      def type
        @type
      end
      def text
        @tag_content
      end
      def info  #element text
        @tag_content
      end
      def attribute
        @attrib
      end
      def element
        @tag
      end
      def attrib
        @attrib
      end
      def el
        @tag
      end
      self
    end
    def start_is_match
      case @p
      when /^#{Mx[:meta_o]}(title)#{Mx[:meta_c]}\s*(.+?)$/                      then header($1,@md.title.full,'meta','dc') #dc 1
      when /^#{Mx[:meta_o]}(creator|author)#{Mx[:meta_c]}\s*(.+?)$/             then header('creator',$2,'meta','dc')    #dc 2
      when /^#{Mx[:meta_o]}(subject)#{Mx[:meta_c]}\s*(.+?)$/                    then header($1,$2,'meta','dc')           #dc 3
      when /^#{Mx[:meta_o]}(description)#{Mx[:meta_c]}\s*(.+?)$/                then header($1,$2,'meta','dc')           #dc 4
      when /^#{Mx[:meta_o]}(publisher)#{Mx[:meta_c]}\s*(.+?)$/                  then header($1,$2,'meta','dc')           #dc 5
      when /^#{Mx[:meta_o]}(contributor)#{Mx[:meta_c]}\s*(.+?)$/                then header($1,$2,'meta','dc')           #dc 6
      when /^#{Mx[:meta_o]}(date)#{Mx[:meta_c]}\s*(.+?)$/                       then header($1,$2,'meta','dc')           #dc 7
      when /^#{Mx[:meta_o]}(date\.created)#{Mx[:meta_c]}\s*(.+?)$/              then header($1,$2,'meta','extra')
      when /^#{Mx[:meta_o]}(date\.issued)#{Mx[:meta_c]}\s*(.+?)$/               then header($1,$2,'meta','extra')
      when /^#{Mx[:meta_o]}(date\.available)#{Mx[:meta_c]}\s*(.+?)$/            then header($1,$2,'meta','extra')
      when /^#{Mx[:meta_o]}(date\.valid)#{Mx[:meta_c]}\s*(.+?)$/                then header($1,$2,'meta','extra')
      when /^#{Mx[:meta_o]}(date\.modified)#{Mx[:meta_c]}\s*(.+?)$/             then header($1,$2,'meta','extra')
      when /^#{Mx[:meta_o]}(type)#{Mx[:meta_c]}\s*(.+?)$/                       then header($1,$2,'meta','dc')           #dc 8
      when /^#{Mx[:meta_o]}(format)#{Mx[:meta_c]}\s*(.+?)$/                     then header($1,$2,'meta','dc')           #dc 9
      when /^#{Mx[:meta_o]}(identifier)#{Mx[:meta_c]}\s*(.+?)$/                 then header($1,$2,'meta','dc')           #dc 10
      when /^#{Mx[:meta_o]}(source)#{Mx[:meta_c]}\s*(.+?)$/                     then header($1,$2,'meta','dc')           #dc 11
      when /^#{Mx[:meta_o]}(language)#{Mx[:meta_c]}\s*(.+?)$/                   then header($1,$2,'meta','dc')           #dc 12
      when /^#{Mx[:meta_o]}(relation)#{Mx[:meta_c]}\s*(.+?)$/                   then header($1,$2,'meta','dc')           #dc 13
      when /^#{Mx[:meta_o]}(coverage)#{Mx[:meta_c]}\s*(.+?)$/                   then header($1,$2,'meta','dc')           #dc 14
      when /^#{Mx[:meta_o]}(rights)#{Mx[:meta_c]}\s*(.+?)$/                     then header($1,$2,'meta','dc')           #dc 15
      when /^#{Mx[:meta_o]}(keywords)#{Mx[:meta_c]}\s*(.+?)$/                   then header($1,$2,'meta','extra')
      when /^#{Mx[:meta_o]}(copyright)#{Mx[:meta_c]}\s*(.+?)$/                  then header($1,$2,'meta','extra')
      when /^#{Mx[:meta_o]}(translator|translated_by)#{Mx[:meta_c]}\s*(.+?)$/   then header('translator',$2)
      when /^#{Mx[:meta_o]}(illustrator|illustrated_by)#{Mx[:meta_c]}\s*(.+?)$/ then header('illustrator',$2)
      when /^#{Mx[:meta_o]}(prepared_by)#{Mx[:meta_c]}\s*(.+?)$/                then header($1,$2,'meta','extra')
      when /^#{Mx[:meta_o]}(digitized_by)#{Mx[:meta_c]}\s*(.+?)$/               then header($1,$2,'meta','extra')
      when /^#{Mx[:meta_o]}(comments?)#{Mx[:meta_c]}\s*(.+?)$/                  then header($1,$2,'meta','extra')
      when /^#{Mx[:meta_o]}(abstract)#{Mx[:meta_c]}\s*(.+?)$/                   then header($1,$2,'meta','extra')
      when /^#{Mx[:meta_o]}(tags?)#{Mx[:meta_c]}\s*(.+?)$/                      then header($1,$2,'meta','extra')
      when /^#{Mx[:meta_o]}(catalogue)#{Mx[:meta_c]}\s*(.+?)$/                  then header($1,$2,'meta','extra')
      when /^#{Mx[:meta_o]}(class(?:ify)?_loc)#{Mx[:meta_c]}\s*(.+?)$/          then header('classify_loc',$2,'meta','extra')
      when /^#{Mx[:meta_o]}(class(?:ify)?_dewey)#{Mx[:meta_c]}\s*(.+?)$/        then header('classify_dewey',$2,'meta','extra')
      when /^#{Mx[:meta_o]}(class(?:ify)?_pg)#{Mx[:meta_c]}\s*(.+?)$/           then header('classify_pg',$2,'meta','extra')
      when /^#{Mx[:meta_o]}(class(?:ify)?_isbn)#{Mx[:meta_c]}\s*(.+?)$/         then header('classify_isbn',$2,'meta','extra')
      when /^#{Mx[:meta_o]}(toc|structure)#{Mx[:meta_c]}\s*(.+?)$/              then header('structure',$2,'process','instruct')
      when /^#{Mx[:meta_o]}(level|page|markup)#{Mx[:meta_c]}\s*(.+?)$/          then header('markup',$2,'process','instruct')
      when /^#{Mx[:meta_o]}(bold)#{Mx[:meta_c]}\s*(.+?)$/                       then header($1,$2,'process','instruct')
      when /^#{Mx[:meta_o]}(italics|itali[sz]e)#{Mx[:meta_c]}\s*(.+?)$/         then header('italicize',$2,'process','instruct')
      when /^#{Mx[:meta_o]}(vocabulary|wordlist)#{Mx[:meta_c]}\s*(.+?)$/        then header('vocabulary',$2,'process','instruct')
      when /^#{Mx[:meta_o]}(css|stylesheet)#{Mx[:meta_c]}\s*(.+?)$/             then header('css',$2,'process','instruct')
      when /^#{Mx[:meta_o]}(links)#{Mx[:meta_c]}\s*(.+?)$/                      then header($1,$2,'process','instruct')
      when /^#{Mx[:meta_o]}(prefix)#{Mx[:meta_c]}\s*(.+?)$/                     then header($1,$2,'process','instruct') #add a & b
      when /^#{Mx[:meta_o]}(suffix)#{Mx[:meta_c]}\s*(.+?)$/                     then header($1,$2,'process','instruct')
      when /^#{Mx[:meta_o]}(information)#{Mx[:meta_c]}\s*(.+?)$/                then header($1,$2,'process','instruct')
      when /^#{Mx[:meta_o]}(contact)#{Mx[:meta_c]}\s*(.+?)$/                    then header($1,$2,'process','instruct')
      when /^#{Mx[:meta_o]}(rcs|cvs)#{Mx[:meta_c]}\s*(.+?)$/                    then header('version',$2,'process','instruct')
      else nil
      end
    end
    def dublin
      (@p =~/^#{Mx[:meta_o]}\S+?#{Mx[:meta_c]}/) \
      ? start_is_match
      : nil
    end
    def meta
      (@p =~/^#{Mx[:meta_o]}\S+?#{Mx[:meta_c]}/) \
      ? start_is_match
      : nil
    end
  end
  class ParagraphNumber
    def initialize(paranum)
      @paranum=/(\d+)/m.match(paranum)[1]
    end
    def display
      @paranum.gsub(/(\d+)/,'#\1')
    end
  end
  class PotNumber
    @@n=0
    def initialize
      @@n +=2
    end
    def num
      @@n
    end
    def reset
      @@n=0
    end
  end
end
__END__