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<title>CodeMirror: Forth mode</title>
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  <a href="http://codemirror.net"><h1>CodeMirror</h1><img id=logo src="../../doc/logo.png"></a>

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    <li><a class=active href="#">Forth</a>
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</div>

<article>

<h2>Forth mode</h2>

<form><textarea id="code" name="code">
\ Insertion sort

: cell-  1 cells - ;

: insert ( start end -- start )
  dup @ >r ( r: v )
  begin
    2dup <
  while
    r@ over cell- @ <
  while
    cell-
    dup @ over cell+ !
  repeat then
  r> swap ! ;

: sort ( array len -- )
  1 ?do
    dup i cells + insert
  loop drop ;</textarea>
  </form>

<script>
  var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
    lineNumbers: true,
    lineWrapping: true,
    indentUnit: 2,
    tabSize: 2,
    autofocus: true,
    theme: "colorforth",
    mode: "text/x-forth"
  });
</script>

<p>Simple mode that handle Forth-Syntax (<a href="http://en.wikipedia.org/wiki/Forth_%28programming_language%29">Forth on WikiPedia</a>).</p>

<p><strong>MIME types defined:</strong> <code>text/x-forth</code>.</p>

</article>