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 45 def add_listener( listener ) @listeners = [] unless @listeners @listeners << listener end
# File rexml/parsers/pullparser.rb, line 50 def each while has_next? yield self.pull end end
# File rexml/parsers/pullparser.rb, line 56 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 66 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