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https://github.com/renbaoshuo/S2OJ.git
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96d4a3ecf7
Due to historical reasons, the code is in subfolder "1". With SVN removal, we place the code back and remove the annoying "1" folder.
59 lines
1.7 KiB
HTML
59 lines
1.7 KiB
HTML
<!doctype html>
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<title>CodeMirror: Mode-Changing Demo</title>
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<meta charset="utf-8"/>
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<link rel=stylesheet href="../doc/docs.css">
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<link rel="stylesheet" href="../lib/codemirror.css">
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<script src="../lib/codemirror.js"></script>
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<script src="../mode/javascript/javascript.js"></script>
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<script src="../mode/scheme/scheme.js"></script>
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<style type="text/css">
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.CodeMirror {border: 1px solid black;}
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</style>
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<div id=nav>
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<a href="http://codemirror.net"><img id=logo src="../doc/logo.png"></a>
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<ul>
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<li><a href="../index.html">Home</a>
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<li><a href="../doc/manual.html">Manual</a>
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<li><a href="https://github.com/marijnh/codemirror">Code</a>
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</ul>
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<ul>
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<li><a class=active href="#">Mode-Changing</a>
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</ul>
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</div>
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<article>
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<h2>Mode-Changing Demo</h2>
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<form><textarea id="code" name="code">
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;; If there is Scheme code in here, the editor will be in Scheme mode.
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;; If you put in JS instead, it'll switch to JS mode.
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(define (double x)
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(* x x))
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</textarea></form>
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<p>On changes to the content of the above editor, a (crude) script
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tries to auto-detect the language used, and switches the editor to
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either JavaScript or Scheme mode based on that.</p>
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<script>
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var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
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mode: "scheme",
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lineNumbers: true
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});
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var pending;
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editor.on("change", function() {
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clearTimeout(pending);
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pending = setTimeout(update, 400);
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});
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function looksLikeScheme(code) {
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return !/^\s*\(\s*function\b/.test(code) && /^\s*[;\(]/.test(code);
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}
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function update() {
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editor.setOption("mode", looksLikeScheme(editor.getValue()) ? "scheme" : "javascript");
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}
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</script>
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</article>
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