begin require 'nokogiri' rescue LoadError => e $stderr.puts "You don't have nokogiri installed in your application. Please add it to your Gemfile and run bundle install" raise e end require 'active_support/core_ext/object/blank' require 'stringio' # = XmlMini Nokogiri implementation using a SAX-based parser module ActiveSupport module XmlMini_NokogiriSAX extend self # Class that will build the hash while the XML document # is being parsed using SAX events. class HashBuilder < Nokogiri::XML::SAX::Document CONTENT_KEY = '__content__'.freeze HASH_SIZE_KEY = '__hash_size__'.freeze attr_reader :hash def current_hash @hash_stack.last end def start_document @hash = {} @hash_stack = [@hash] end def end_document raise "Parse stack not empty!" if @hash_stack.size > 1 end def error(error_message) raise error_message end def start_element(name, attrs = []) new_hash = { CONTENT_KEY => '' }.merge(Hash[attrs]) new_hash[HASH_SIZE_KEY] = new_hash.size + 1 case current_hash[name] when Array then current_hash[name] << new_hash when Hash then current_hash[name] = [current_hash[name], new_hash] when nil then current_hash[name] = new_hash end @hash_stack.push(new_hash) end def end_element(name) if current_hash.length > current_hash.delete(HASH_SIZE_KEY) && current_hash[CONTENT_KEY].blank? || current_hash[CONTENT_KEY] == '' current_hash.delete(CONTENT_KEY) end @hash_stack.pop end def characters(string) current_hash[CONTENT_KEY] << string end alias_method :cdata_block, :characters end attr_accessor :document_class self.document_class = HashBuilder def parse(data) if !data.respond_to?(:read) data = StringIO.new(data || '') end char = data.getc if char.nil? {} else data.ungetc(char) document = self.document_class.new parser = Nokogiri::XML::SAX::Parser.new(document) parser.parse(data) document.hash end end end end