diff options
Diffstat (limited to 'trunk/lib/rexml/parsers/ultralightparser.rb')
-rw-r--r-- | trunk/lib/rexml/parsers/ultralightparser.rb | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/trunk/lib/rexml/parsers/ultralightparser.rb b/trunk/lib/rexml/parsers/ultralightparser.rb new file mode 100644 index 0000000000..adc4af18e2 --- /dev/null +++ b/trunk/lib/rexml/parsers/ultralightparser.rb @@ -0,0 +1,56 @@ +require 'rexml/parsers/streamparser' +require 'rexml/parsers/baseparser' + +module REXML + module Parsers + class UltraLightParser + def initialize stream + @stream = stream + @parser = REXML::Parsers::BaseParser.new( stream ) + end + + def add_listener( listener ) + @parser.add_listener( listener ) + end + + def rewind + @stream.rewind + @parser.stream = @stream + end + + def parse + root = context = [] + while true + event = @parser.pull + case event[0] + when :end_document + break + when :end_doctype + context = context[1] + when :start_element, :doctype + context << event + event[1,0] = [context] + context = event + when :end_element + context = context[1] + else + context << event + end + end + root + end + end + + # An element is an array. The array contains: + # 0 The parent element + # 1 The tag name + # 2 A hash of attributes + # 3..-1 The child elements + # An element is an array of size > 3 + # Text is a String + # PIs are [ :processing_instruction, target, data ] + # Comments are [ :comment, data ] + # DocTypes are DocType structs + # The root is an array with XMLDecls, Text, DocType, Array, Text + end +end |