create_from (REXML::SourceFactory)

    # File temp/source.rb, line 9
                    def SourceFactory::create_from arg#, slurp=true
                            if arg.kind_of? String
                                    source = Source.new(arg)
                            elsif arg.kind_of? IO
                                    source = IOSource.new(arg)
                            end
                            source
                    end