class Tilt::NokogiriTemplate

def self.engine_initialized?
  defined? ::Nokogiri
end

def evaluate(scope, locals, &block)
  block &&= proc { yield.gsub(/^<\?xml version=\"1\.0\"\?>\n?/, "") }
  if data.respond_to?(:to_str)
    super(scope, locals, &block)
  else
    ::Nokogiri::XML::Builder.new.tap(&data).to_xml
  end
end

def initialize_engine
  require_template_library 'nokogiri'
end

def precompiled_postamble(locals)
  "xml.to_xml"
end

def precompiled_preamble(locals)
  return super if locals.include? :xml
  "xml = ::Nokogiri::XML::Builder.new { |xml| }\n#{super}"
end

def precompiled_template(locals)
  data.to_str
end

def prepare; end