← Back to branch summary

~ubuntu-branches/ubuntu/hardy/ruby1.8/hardy-updates

« back to all changes in this revision

Viewing changes to lib/rexml/parsers/treeparser.rb

  • Committer: Bazaar Package Importer
  • Author(s): akira yamada
  • Date: 2007-03-13 22:11:58 UTC
  • mfrom: (1.1.5 upstream)
  • Revision ID: james.westby@ubuntu.com-20070313221158-h3oql37brlaf2go2
Tags: 1.8.6-1
http://bugs.debian.org/410018
* new upstream version, 1.8.6.
* libruby1.8 conflicts with libopenssl-ruby1.8 (< 1.8.6) (closes: #410018)
* changed packaging style to cdbs from dbs.

Show diffs side-by-side

added added

removed removed

Lines of Context:
lib/rexml/parsers/treeparser.rb
 
1
require 'rexml/validation/validationexception'
 
2
 
 
3
module REXML
 
4
  module Parsers
 
5
    class TreeParser
 
6
      def initialize( source, build_context = Document.new )
 
7
        @build_context = build_context
 
8
        @parser = Parsers::BaseParser.new( source )
 
9
      end
 
10
 
 
11
      def add_listener( listener )
 
12
        @parser.add_listener( listener )
 
13
      end
 
14
 
 
15
      def parse
 
16
        tag_stack = []
 
17
        in_doctype = false
 
18
        entities = nil
 
19
        begin
 
20
          while true
 
21
            event = @parser.pull
 
22
            #STDERR.puts "TREEPARSER GOT #{event.inspect}"
 
23
            case event[0]
 
24
            when :end_document
 
25
              unless tag_stack.empty?
 
26
                #raise ParseException.new("No close tag for #{tag_stack.inspect}")
 
27
                raise ParseException.new("No close tag for #{@build_context.xpath}")
 
28
              end
 
29
              return
 
30
            when :start_element
 
31
              tag_stack.push(event[1])
 
32
              # find the observers for namespaces
 
33
              @build_context = @build_context.add_element( event[1], event[2] )
 
34
            when :end_element
 
35
              tag_stack.pop
 
36
              @build_context = @build_context.parent
 
37
            when :text
 
38
              if not in_doctype
 
39
                if @build_context[-1].instance_of? Text
 
40
                  @build_context[-1] << event[1]
 
41
                else
 
42
                  @build_context.add( 
 
43
                    Text.new(event[1], @build_context.whitespace, nil, true) 
 
44
                  ) unless (
 
45
                    @build_context.ignore_whitespace_nodes and
 
46
                    event[1].strip.size==0
 
47
                  )
 
48
                end
 
49
              end
 
50
            when :comment
 
51
              c = Comment.new( event[1] )
 
52
              @build_context.add( c )
 
53
            when :cdata
 
54
              c = CData.new( event[1] )
 
55
              @build_context.add( c )
 
56
            when :processing_instruction
 
57
              @build_context.add( Instruction.new( event[1], event[2] ) )
 
58
            when :end_doctype
 
59
              in_doctype = false
 
60
              entities.each { |k,v| entities[k] = @build_context.entities[k].value }
 
61
              @build_context = @build_context.parent
 
62
            when :start_doctype
 
63
              doctype = DocType.new( event[1..-1], @build_context )
 
64
              @build_context = doctype
 
65
              entities = {}
 
66
              in_doctype = true
 
67
            when :attlistdecl
 
68
              n = AttlistDecl.new( event[1..-1] )
 
69
              @build_context.add( n )
 
70
            when :externalentity
 
71
              n = ExternalEntity.new( event[1] )
 
72
              @build_context.add( n )
 
73
            when :elementdecl
 
74
              n = ElementDecl.new( event[1] )
 
75
              @build_context.add(n)
 
76
            when :entitydecl
 
77
              entities[ event[1] ] = event[2] unless event[2] =~ /PUBLIC|SYSTEM/
 
78
              @build_context.add(Entity.new(event))
 
79
            when :notationdecl
 
80
              n = NotationDecl.new( *event[1..-1] )
 
81
              @build_context.add( n )
 
82
            when :xmldecl
 
83
              x = XMLDecl.new( event[1], event[2], event[3] )
 
84
              @build_context.add( x )
 
85
            end
 
86
          end
 
87
        rescue REXML::Validation::ValidationException
 
88
          raise
 
89
        rescue
 
90
          raise ParseException.new( $!.message, @parser.source, @parser, $! )
 
91
        end
 
92
      end
 
93
    end
 
94
  end
 
95
end