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<!doctype html>
<html>
  <head>
    <title>CodeMirror 2: Autocomplete Demo</title>
    <link rel="stylesheet" href="../lib/codemirror.css">
    <script src="../lib/codemirror.js"></script>
    <link rel="stylesheet" href="../mode/javascript/javascript.css">
    <script src="../mode/javascript/javascript.js"></script>
    <link rel="stylesheet" href="../css/docs.css">

    <style type="text/css">
      .completions {
        position: absolute;
        z-index: 10;
        overflow: hidden;
        -webkit-box-shadow: 2px 3px 5px rgba(0,0,0,.2);
        -moz-box-shadow: 2px 3px 5px rgba(0,0,0,.2);
        box-shadow: 2px 3px 5px rgba(0,0,0,.2);
      }
      .completions select {
        background: #fafafa;
        outline: none;
        border: none;
        padding: 0;
        margin: 0;
        font-family: monospace;
      }
      .CodeMirror {
        border: 1px solid #eee;
      }
    </style>
  </head>
  <body>
    <h1>CodeMirror 2: Autocomplete demo</h1>

    <form><textarea id="code" name="code">
function getCompletions(token, context) {
  var found = [], start = token.string;
  function maybeAdd(str) {
    if (str.indexOf(start) == 0) found.push(str);
  }
  function gatherCompletions(obj) {
    if (typeof obj == "string") forEach(stringProps, maybeAdd);
    else if (obj instanceof Array) forEach(arrayProps, maybeAdd);
    else if (obj instanceof Function) forEach(funcProps, maybeAdd);
    for (var name in obj) maybeAdd(name);
  }

  if (context) {
    // If this is a property, see if it belongs to some object we can
    // find in the current environment.
    var obj = context.pop(), base;
    if (obj.className == "js-variable")
      base = window[obj.string];
    else if (obj.className == "js-string")
      base = "";
    else if (obj.className == "js-atom")
      base = 1;
    while (base != null && context.length)
      base = base[context.pop().string];
    if (base != null) gatherCompletions(base);
  }
  else {
    // If not, just look in the window object and any local scope
    // (reading into JS mode internals to get at the local variables)
    for (var v = token.state.localVars; v; v = v.next) maybeAdd(v.name);
    gatherCompletions(window);
    forEach(keywords, maybeAdd);
  }
  return found;
}
</textarea></form>

<p>Press <strong>ctrl-space</strong> to activate autocompletion. See
the <a href="complete.js">code</a> to figure out how it works.</p>

    <script src="complete.js"></script>
  </body>
</html>
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