<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha1/dist/css/bootstrap.min.css" rel="stylesheet"
        integrity="sha384-GLhlTQ8iRABdZLl6O3oVMWSktQOp6b7In1Zl3/Jr59b6EGGoI1aFkw7cmDA6j6gD" crossorigin="anonymous">
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.3.0/css/all.min.css"
        integrity="sha512-SzlrxWUlpfuzQ+pcUCosxcglQRNAq/DZjVsC0lE40xsADsfeQoEypE+enwcOiGjk/bSuGGKHEyjSoQ1zVisanQ=="
        crossorigin="anonymous" referrerpolicy="no-referrer" />
</head>
</html>
require "rexml/parsers/baseparser"

module REXML
  module Parsers
    class StreamParser
      def initialize source, listener
        @listener = listener
        @parser = BaseParser.new( source )
      end

      def add_listener( listener )
        @parser.add_listener( listener )
      end

      def parse
        # entity string
        while true
          event = @parser.pull
          case event[0]
          when :end_document
            return
          when :start_element
            attrs = event[2].each do |n, v|
              event[2][n] = @parser.unnormalize( v )
            end
            @listener.tag_start( event[1], attrs )
          when :end_element
            @listener.tag_end( event[1] )
          when :text
            normalized = @parser.unnormalize( event[1] )
            @listener.text( normalized )
          when :processing_instruction
            @listener.instruction( *event[1,2] )
          when :start_doctype
            @listener.doctype( *event[1..-1] )
          when :end_doctype
            # FIXME: remove this condition for milestone:3.2
            @listener.doctype_end if @listener.respond_to? :doctype_end
          when :comment, :attlistdecl, :cdata, :xmldecl, :elementdecl
            @listener.send( event[0].to_s, *event[1..-1] )
          when :entitydecl, :notationdecl
            @listener.send( event[0].to_s, event[1..-1] )
          when :externalentity
            entity_reference = event[1]
            content = entity_reference.gsub(/\A%|;\z/, "")
            @listener.entity(content)
          end
        end
      end
    end
  end
end
