class Crack::XML

def self.parse(xml)
  stack = []
  parser = REXML::Parsers::BaseParser.new(xml)
  while true
    event = parser.pull
    case event[0]
    when :end_document
      break
    when :end_doctype, :start_doctype
      # do nothing
    when :start_element
      stack.push REXMLUtilityNode.new(event[1], event[2])
    when :end_element
      if stack.size > 1
        temp = stack.pop
        stack.last.add_node(temp)
      end
    when :text, :cdata
      stack.last.add_node(event[1]) unless event[1].strip.length == 0 || stack.empty?
    end
  end
  stack.length > 0 ? stack.pop.to_hash : {}
end