parse_args (REXML::XPathParser)

    # File rexml/xpath_parser.rb, line 632
      def parse_args( string )
    			#puts "parse_args '#{string}'" if DEBUG
    			arguments = []
    			ind = 0
    			depth = 1
    			begin
    				case string[ind]
    				when ?(
    					depth += 1
    					if depth == 1
    						string = string[1..-1]
    						ind -= 1
    					end
    				when ?)
    					depth -= 1
    					if depth == 0
    						s = string[0,ind].strip
    						arguments << s unless s == ""
    						string = string[ind+1..-1]
    					end
    				when ?,
    					if depth == 1
    						s = string[0,ind].strip
    						arguments << s unless s == ""
    						string = string[ind+1..-1]
    						ind = 0
    					end
    				end
    				ind += 1
    			end while depth > 0 and ind < string.length
    			return nil unless depth==0
    			[string,arguments]
    		end