var lex = require('jade-lexer');
var parse = require('jade-parser');
var genSource = require('jade-source-gen');

var source = `
include a

mixin myMixin(arg)
  block
  p&attributes(attributes) Paragraph: #[strong= arg]

html
  head
  body
    p.klass(attr falseattr=false class=['myClass']) Introduction
    +myMixin('Content').klass2
      h1 Heading
`;
var ast = parse(lex(source));

var generatedSource = genSource(ast);
// =>
// include a
// mixin myMixin(arg)
//   block
//   p&attributes(attributes) Paragraph: #[strong= arg]
// html
//   head
//   body
//     p.klass(attr falseattr=false class=['myClass']) Introduction
//     +myMixin('Content').klass2
//       h1 Heading