nes[0].length - lines[0].trim().length;
      var re = new RegExp(' {' + indentSize + '}');

      lines = lines.map(function (line) {
        if (line.match(re)) {
          line = line.slice(Math.max(0, indentSize));
        }

        return line;
      });

      lines = lines.join('\n');

      return lines;
    }
  })();
</script>
</body>
</html>
