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<head>
  <title>CodeMirror: Code Folding Demo</title>
  <meta charset="utf-8"/>
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<div id=nav>
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  <ul>
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  <ul>
    <li><a class=active href="#">Code Folding</a>
  </ul>
</div>

<article>
  <h2>Code Folding Demo</h2>
  <form>
    <div style="max-width: 50em; margin-bottom: 1em">JavaScript:<br>
    <textarea id="code" name="code"></textarea></div>
    <div style="max-width: 50em; margin-bottom: 1em">HTML:<br>
    <textarea id="code-html" name="code-html"></textarea></div>
    <div style="max-width: 50em">Markdown:<br>
    <textarea id="code-markdown" name="code"></textarea></div>
  </form>
  <script id="script">
/*
 * Demonstration of code folding
 */
window.onload = function() {
  var te = document.getElementById("code");
  var sc = document.getElementById("script");
  te.value = (sc.textContent || sc.innerText || sc.innerHTML).replace(/^\s*/, "");
  sc.innerHTML = "";
  var te_html = document.getElementById("code-html");
  te_html.value = document.documentElement.innerHTML;
  var te_markdown = document.getElementById("code-markdown");
  te_markdown.value = "# Foo\n## Bar\n\nblah blah\n\n## Baz\n\nblah blah\n\n# Quux\n\nblah blah\n"

  window.editor = CodeMirror.fromTextArea(te, {
    mode: "javascript",
    lineNumbers: true,
    lineWrapping: true,
    extraKeys: {"Ctrl-Q": function(cm){ cm.foldCode(cm.getCursor()); }},
    foldGutter: true,
    gutters: ["CodeMirror-linenumbers", "CodeMirror-foldgutter"]
  });
  editor.foldCode(CodeMirror.Pos(13, 0));

  window.editor_html = CodeMirror.fromTextArea(te_html, {
    mode: "text/html",
    lineNumbers: true,
    lineWrapping: true,
    extraKeys: {"Ctrl-Q": function(cm){ cm.foldCode(cm.getCursor()); }},
    foldGutter: true,
    gutters: ["CodeMirror-linenumbers", "CodeMirror-foldgutter"]
  });
  editor_html.foldCode(CodeMirror.Pos(0, 0));
  editor_html.foldCode(CodeMirror.Pos(21, 0));

  window.editor_markdown = CodeMirror.fromTextArea(te_markdown, {
    mode: "markdown",
    lineNumbers: true,
    lineWrapping: true,
    extraKeys: {"Ctrl-Q": function(cm){ cm.foldCode(cm.getCursor()); }},
    foldGutter: true,
    gutters: ["CodeMirror-linenumbers", "CodeMirror-foldgutter"]
  });
};
  </script>
</article>
</body>
