# encoding: utf-8
=begin

* Name: SiSU

** Description: documents, structuring, processing, publishing, search
*** rexml testing of xml

** Author: Ralph Amissah
  [ralph@amissah.com]
  [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 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]

** 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]

** Git
  [http://git.sisudoc.org/gitweb/?p=code/sisu.git;a=summary]
  [http://git.sisudoc.org/gitweb/?p=code/sisu.git;a=blob;f=lib/sisu/rexml.rb;hb=HEAD]

=end
module SiSU_Rexml
  # load XML file for REXML parsing
  begin
    require 'rexml/document' \
      if FileTest.directory?("#{RbConfig::CONFIG['rubylibdir']}/rexml") #RbConfig::CONFIG['sitedir']
  rescue LoadError
    SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).
      error('rexml/document NOT FOUND (LoadError)')
  end
  require_relative 'dp'                                 # dp.rb
    include SiSU_Param
  require_relative 'se'                                 # se.rb
    include SiSU_Env
  class Rexml
    begin
      require 'rexml/document' \
        if FileTest.directory?("#{RbConfig::CONFIG['rubylibdir']}/rexml") #RbConfig::CONFIG['sitedir']
    rescue LoadError
      SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).
        error('rexml/document NOT FOUND (LoadError)')
    end
    def initialize(md,fno)
      @md,@fno=md,fno
      @env=SiSU_Env::InfoEnv.new(@md.fns)
      @prog=SiSU_Env::InfoProgram.new #(md.fns) #if md
      if File.file?(@fno)
        @fnap=@fno #index.xml causes problems with index.html in server config
      end
      @e_head='/document/head'
      @e_title='/document/head/title'
      @e_object='/document/body/object'
      @e_ocn='/document/body/object/ocn'
      @e_text='/document/body/object/text'
      @e_endnote='/document/body/object/endnote'
    end
    def xml
      begin
        if FileTest.file?(@fnap)
          if @prog.rexml !=false \
          and FileTest.directory?('/usr/lib/ruby/1.8/rexml/') #note values can be other than true
            xmlfile=IO.readlines(@fnap,'').join
            begin
              @xmldoc=REXML::Document.new xmlfile
              SiSU_Screen::Ansi.new(
                @md.opt.act[:color_state][:set],
                'invert',
                'REXML',
                "XML document #{@fnap} loaded"
              ).colorize unless @md.opt.act[:quiet][:set]==:on
              if (@opt.act[:verbose][:set]==:on \
              || @opt.act[:verbose_plus][:set]==:on)
                @xmldoc.elements.each(@e_head) do |e|
                  SiSU_Screen::Ansi.new(
                    @md.opt.act[:color_state][:set],
                    'brown',
                    e
                  ).colorize unless @md.opt.act[:quiet][:set]==:on
                end
              end
            rescue REXML::ParseException
              puts 'broken XML'
            end
          end
        else
          SiSU_Screen::Ansi.new(
            @md.opt.act[:color_state][:set],
            'fuchsia',
            "File Not Found #{xmlfile}",
            'requested XML processing skipped'
          ).colorize unless @md.opt.act[:quiet][:set]==:on
          exit
        end
      rescue
        SiSU_Errors::Rescued.new($!,$@,@md.opt.selections.str,@md.fns).location do
          __LINE__.to_s + ':' + __FILE__
        end
      ensure
      end
    end
  end
end
__END__
 misc
e.each do |element|
  element.each do |child|
    if child.is_a?(REXML::Text)
      puts "Text: #{child.to_s.inspect}"
    else
      puts "SubElement: #{child.name}"
    end
  end
end