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=begin
 * Name: SiSU information Structuring Universe - Structured information, Serialized Units
 * Author: Ralph Amissah
   * http://www.jus.uio.no/sisu
   * http://www.jus.uio.no/sisu/SiSU/download.html

 * Description: update previous output (with similar output file type formats)

 * Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Ralph Amissah

 * License: GPL 2 or later

  Summary of GPL 2

  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 2 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, write to the Free Software Foundation, Inc.,
  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA

  If you have Internet connection, the latest version of the GPL should be
  available at these locations:
    http://www.fsf.org/licenses/gpl.html
    http://www.gnu.org/copyleft/gpl.html
    http://www.jus.uio.no/sisu/gpl2.fsf

  SiSU was first released to the public on January 4th 2005

  SiSU uses:

  *  Standard SiSU markup syntax,
  *  Standard SiSU meta-markup syntax, and the
  *  Standard SiSU object citation numbering and system

  © Ralph Amissah 1997, current 2007.
  All Rights Reserved.

 * Notes: tidy -ascii index.xml >> index.tidy

 * Ralph Amissah: ralph@amissah.com
                  ralph.amissah@gmail.com
=end
module SiSU_Update_control_flag
  require "#{SiSU_lib}/sysenv"
  include SiSU_Env
  include SiSU_Param
  class Check
    def initialize(opt)
      @opt=opt
      @md=SiSU_Param::Parameters.new(@opt).get
    end
    def read
      begin
        @env=SiSU_Env::Info_env.new(@md.fns)
        out=@env.path.output
        base_path="#{out}/#{@md.fnb}"
        tell=SiSU_Screen::Ansi.new(@md.cmd,'Checking previous output',base_path)
        tell.green_hi_blue unless @md.cmd =~/q/
        Set_CF.new(@md).set_flags
      rescue; SiSU_Errors::Info_error.new($!,$@,@md.cmd,@md.fns).error
      ensure
      end
    end
    private
    class Set_CF
      def initialize(md)
        @md=md
        @env=SiSU_Env::Info_env.new(@md.fns)
        out=@env.path.output
        @base_path="#{out}/#{@md.fnb}"
      end
      def set_flags #-mNhwpoabxXyv
        flag='-v'
        if FileTest.file?("#@base_path/#{@md.fn[:doc]}")==true
          flag=flag + 'a'
        end
        if FileTest.file?("#@base_path/#{@md.fn[:toc]}")==true \
        or FileTest.file?("#@base_path/#{@md.fn[:doc]}")==true
          flag=flag + 'h'
        end
        if FileTest.file?("#@base_path/#{@md.fn[:xhtml]}")==true
          flag=flag + 'b'
        end
        if FileTest.file?("#@base_path/#{@md.fn[:sax]}")==true
          flag=flag + 'x'
        end
        if FileTest.file?("#@base_path/#{@md.fn[:dom]}")==true
          flag=flag + 'X'
        end
        if FileTest.file?("#@base_path/#{@md.fn[:odf]}")==true
          flag=flag + 'o'
        end
        if FileTest.file?("#@base_path/#{@md.fn[:pdf_p]}")==true \
        or FileTest.file?("#@base_path/#{@md.fn[:pdf_l]}")==true
          flag=flag + 'p'
        end
        if FileTest.file?("#@base_path/#{@md.fn[:concordance]}")==true
          flag=flag + 'w'
        end
        if FileTest.file?("#@base_path/#{@md.fn[:digest]}")==true
          flag=flag + 'N'
        end
        if FileTest.file?("#@base_path/#{@md.fns}")==true
          flag=flag + 's'
        end
        if FileTest.file?("#@base_path/sisupod.tgz")==true
          flag=flag + 'S'
        end
        puts flag
        flag
      end
    end
  end
end
__END__