REXML::Parsers::TreeParser

Public Class Methods

new( source, build_context = Document.new ) click to toggle source

 
               # File rexml/parsers/treeparser.rb, line 7
def initialize( source, build_context = Document.new )
  @build_context = build_context
  @parser = Parsers::BaseParser.new( source )
end

Public Instance Methods

add_listener( listener ) click to toggle source

 
               # File rexml/parsers/treeparser.rb, line 12
def add_listener( listener )
  @parser.add_listener( listener )
end

parse() click to toggle source

 
               # File rexml/parsers/treeparser.rb, line 16
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].each do |key, value|
          el.attributes[key]=Attribute.new(key,value,self)
        end
      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

Commenting is here to help enhance the documentation. For example, code samples, or clarification of the documentation.

If you have questions about Ruby or the documentation, please post to one of the Ruby mailing lists. You will get better, faster, help that way.

If you wish to post a correction of the docs, please do so, but also file bug report so that it can be corrected for the next release. Thank you.

If you want to help improve the Ruby documentation, please visit Documenting-ruby.org.

Home Classes Methods

In Files

Parent

Methods

Class/Module Index

REXML::Parsers::TreeParser

Public Class Methods

Public Instance Methods