<!doctype html>
<html>
  <head>
    <title>CodeMirror: Overlay Parser Demo</title>
    <link rel="stylesheet" href="../lib/codemirror.css">
    <script src="../lib/codemirror.js"></script>
    <script src="../lib/util/overlay.js"></script>
    <script src="../mode/xml/xml.js"></script>
    <link rel="stylesheet" href="../doc/docs.css">

    <style type="text/css">
      .CodeMirror {border: 1px solid black;}
      .cm-mustache {color: #0ca;}
    </style>
  </head>
  <body>
    <h1>CodeMirror: Overlay Parser Demo</h1>

    <form><textarea id="code" name="code">
<html>
  <body>
    <h1>{{title}}</h1>
    <p>These are links to {{things}}:</p>
    <ul>{{#links}}
      <li><a href="{{url}}">{{text}}</a></li>
    {{/links}}</ul>
  </body>
</html>
</textarea></form>

    <script>
CodeMirror.defineMode("mustache", function(config, parserConfig) {
  var mustacheOverlay = {
    token: function(stream, state) {
      var ch;
      if (stream.match("{{")) {
        while ((ch = stream.next()) != null)
          if (ch == "}" && stream.next() == "}") break;
        return "mustache";
      }
      while (stream.next() != null && !stream.match("{{", false)) {}
      return null;
    }
  };
  return CodeMirror.overlayParser(CodeMirror.getMode(config, parserConfig.backdrop || "text/html"), mustacheOverlay);
});
var editor = CodeMirror.fromTextArea(document.getElementById("code"), {mode: "mustache"});
</script>

    <p>Demonstration of a mode that parses HTML, highlighting
    the <a href="http://mustache.github.com/">Mustache</a> templating
    directives inside of it by using the code
    in <a href="../lib/util/overlay.js"><code>overlay.js</code></a>. View
    source to see the 15 lines of code needed to accomplish this.</p>

  </body>
</html>
