This API is experimental, and subject to change.
parser = PullParser.new( "<a>text<b att='val'/>txet</a>" ) while parser.has_next? res = parser.next puts res[1]['att'] if res.start_tag? and res[0] == 'b' end
See the PullEvent class for information on the content of the results. The data is identical to the arguments passed for the various events to the StreamListener API.
Notice that:
parser = PullParser.new( "<a>BAD DOCUMENT" ) while parser.has_next? res = parser.next raise res[1] if res.error? end
Nat Price gave me some good ideas for the API.
# File rexml/parsers/pullparser.rb, line 44 def add_listener( listener ) @listeners = [] unless @listeners @listeners << listener end
# File rexml/parsers/pullparser.rb, line 49 def each while has_next? yield self.pull end end
# File rexml/parsers/pullparser.rb, line 55 def peek depth=0 if @my_stack.length <= depth (depth - @my_stack.length + 1).times { e = PullEvent.new(@parser.pull) @my_stack.push(e) } end @my_stack[depth] end
# File rexml/parsers/pullparser.rb, line 65 def pull return @my_stack.shift if @my_stack.length > 0 event = @parser.pull case event[0] when :entitydecl @entities[ event[1] ] = event[2] unless event[2] =~ /PUBLIC|SYSTEM/ when :text unnormalized = @parser.unnormalize( event[1], @entities ) event << unnormalized end PullEvent.new( event ) end