# File lib/rexml/text.rb, line 60
    def initialize(arg, respect_whitespace=false, parent=nil, raw=nil, 
      entity_filter=nil, illegal=ILLEGAL )

      @raw = false

      if parent
        super( parent )
        @raw = parent.raw 
      else
        @parent = nil
      end

      @raw = raw unless raw.nil?
      @entity_filter = entity_filter
      @normalized = @unnormalized = nil

      if arg.kind_of? String
        @string = arg.clone
        @string.squeeze!(" \n\t") unless respect_whitespace
      elsif arg.kind_of? Text
        @string = arg.to_s
        @raw = arg.raw
      elsif
        raise "Illegal argument of type #{arg.type} for Text constructor (#{arg})"
      end

      @string.gsub!( /\r\n?/, "\n" )

      # check for illegal characters
      if @raw
        if @string =~ illegal
          raise "Illegal character '#{$1}' in raw string \"#{@string}\""
        end
      end
    end