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=begin

 * Name: SiSU

 * Description: a framework for document structuring, publishing and search
   Sematic tags

 * Author: Ralph Amissah

 * Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
   2007,
   2008 Ralph Amissah All Rights Reserved.

 * License: GPL 3 or later:

   SiSU, a framework for document structuring, publishing and search

   Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
   2007 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/copyleft/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: system environment, resource control and configuration details

=end
module SiSU_sem
  class Tags
    def initialize(para)
      @para=para
    end
    def rgx
      def exclude
        /^<:code>/
      end
      def each_csc
        /\b[a-z]+[:;]\{|\}[:;][a-z]+\b/m
        #/\b(?:[a-z]+(?:[_.][a-z]+)+|[a-z]+)[:;]\{|\}[:;](?:[a-z]+(?:[_.][a-z]+)+|[a-z]+)\b/m
      end
      def each_c
        /\b[a-z]+:\{|\}:[a-z]+\b/m
        #/\b(?:[a-z]+(?:[_.][a-z]+)+|[a-z]+):\{|\}:(?:[a-z]+(?:[_.][a-z]+)+|[a-z]+)\b/m
      end
      def each_sc
        /\b[a-z]+;\{|\};[a-z]+\b/m
        #/\b(?:[a-z]+(?:[_.][a-z]+)+|[a-z]+);\{|\};(?:[a-z]+(?:[_.][a-z]+)+|[a-z]+)\b/m
      end
      def pair_csc
        /(([a-z]+)(?::\{(.+?)\}:\2|;\{(.+?)\};\2))/m
        #/(([a-z]+(?:[_.][a-z]+)+|[a-z]+)(?::\{(.+?)\}:\2|;\{(.+?)\};\2))/m
      end
      def pair_c
        /(([a-z]+):\{(.+?)\}:\2)/m
        #/(([a-z]+(?:[_.][a-z]+)+|[a-z]+):\{(.+?)\}:\2)/m
      end
      def pair_sc
        /(([a-z]+);\{.+?\};\2)/m
        #/(([a-z]+(?:[_.][a-z]+)+|[a-z]+);\{.+?\};\2)/m
      end
      def whole_csc_ae
        /(([a-z]+)(?::\[(.+?)\]:\2|;\[(.+?)\];\2))/m
        #/(([a-z]+(?:[_.][a-z]+)+|[a-z]+)(?::\[(.+?)\]:\2|;\[(.+?)\];\2))/m
      end
      def each_csc_ae
        /\b[a-z]+[:;]\[|\][:;][a-z]+\b/m
        #/\b(?:[a-z]+(?:[_.][a-z]+)+|[a-z]+)[:;]\[|\][:;](?:[a-z]+(?:[_.][a-z]+)+|[a-z]+)\b/m
      end
      self
    end
    def rm
      def sem_marker_parts
        unless @para =~ rgx.exclude
          @para.gsub!(rgx.each_csc,'')
        end
        @para
      end
      def sem_marker_added_extra_parts
        unless @para =~ rgx.exclude
          @para.gsub!(rgx.whole_csc_ae,'')
          if para =~rgx.each_csc_ae; puts "WARNING semantic taggin error: #@para"
          end
        end
        @para
      end
      def all
        sem_marker_parts
        sem_marker_added_extra_parts
      end
      self
    end
  end
end
__END__