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author | shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2007-08-15 19:08:43 +0000 |
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committer | shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2007-08-15 19:08:43 +0000 |
commit | d464704f111d211c1f1ff9ef23ef1d755054be00 (patch) | |
tree | b58b17b645dc463322e5fca57fe282360db659c9 /ruby_1_8_5/lib/rexml/parsers/treeparser.rb | |
parent | e4f06b3f2dec4b5d6334c5e9907e1cecbf649fc4 (diff) |
add tag v1_8_5_54
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_8_5_54@12952 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ruby_1_8_5/lib/rexml/parsers/treeparser.rb')
-rw-r--r-- | ruby_1_8_5/lib/rexml/parsers/treeparser.rb | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/ruby_1_8_5/lib/rexml/parsers/treeparser.rb b/ruby_1_8_5/lib/rexml/parsers/treeparser.rb new file mode 100644 index 0000000000..500a53f426 --- /dev/null +++ b/ruby_1_8_5/lib/rexml/parsers/treeparser.rb @@ -0,0 +1,94 @@ +require 'rexml/validation/validationexception' + +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}") + end + return + when :start_element + tag_stack.push(event[1]) + # find the observers for namespaces + @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 + raise ParseException.new( $!.message, @parser.source, @parser, $! ) + end + end + end + end +end |