JezK
Edit File: treeparser.rb
require 'rexml/validation/validationexception' require 'rexml/undefinednamespaceexception' module REXML module Parsers class TreeParser def initialize( source, build_context = Document.new ) @build_context = build_context @parser = Parsers::BaseParser.new( source ) end def add_listener( listener ) @parser.add_listener( listener ) end def parse tag_stack = [] in_doctype = false entities = nil begin while true event = @parser.pull #STDERR.puts "TREEPARSER GOT #{event.inspect}" case event[0] when :end_document unless tag_stack.empty? #raise ParseException.new("No close tag for #{tag_stack.inspect}") raise ParseException.new("No close tag for #{@build_context.xpath}") end return when :start_element tag_stack.push(event[1]) el = @build_context = @build_context.add_element( event[1], event[2] ) when :end_element tag_stack.pop @build_context = @build_context.parent when :text if not in_doctype if @build_context[-1].instance_of? Text @build_context[-1] << event[1] else @build_context.add( Text.new(event[1], @build_context.whitespace, nil, true) ) unless ( @build_context.ignore_whitespace_nodes and event[1].strip.size==0 ) end end when :comment c = Comment.new( event[1] ) @build_context.add( c ) when :cdata c = CData.new( event[1] ) @build_context.add( c ) when :processing_instruction @build_context.add( Instruction.new( event[1], event[2] ) ) when :end_doctype in_doctype = false entities.each { |k,v| entities[k] = @build_context.entities[k].value } @build_context = @build_context.parent when :start_doctype doctype = DocType.new( event[1..-1], @build_context ) @build_context = doctype entities = {} in_doctype = true when :attlistdecl n = AttlistDecl.new( event[1..-1] ) @build_context.add( n ) when :externalentity n = ExternalEntity.new( event[1] ) @build_context.add( n ) when :elementdecl n = ElementDecl.new( event[1] ) @build_context.add(n) when :entitydecl entities[ event[1] ] = event[2] unless event[2] =~ /PUBLIC|SYSTEM/ @build_context.add(Entity.new(event)) when :notationdecl n = NotationDecl.new( *event[1..-1] ) @build_context.add( n ) when :xmldecl x = XMLDecl.new( event[1], event[2], event[3] ) @build_context.add( x ) end end rescue REXML::Validation::ValidationException raise rescue REXML::UndefinedNamespaceException raise rescue raise ParseException.new( $!.message, @parser.source, @parser, $! ) end end end end end