|
0
|
1 <!doctype html>
|
|
|
2
|
|
|
3 <title>CodeMirror: Mode-Changing Demo</title>
|
|
|
4 <meta charset="utf-8"/>
|
|
|
5 <link rel=stylesheet href="../doc/docs.css">
|
|
|
6
|
|
|
7 <link rel="stylesheet" href="../lib/codemirror.css">
|
|
|
8 <script src="../lib/codemirror.js"></script>
|
|
|
9 <script src="../mode/javascript/javascript.js"></script>
|
|
|
10 <script src="../mode/scheme/scheme.js"></script>
|
|
|
11 <style>
|
|
|
12 .CodeMirror {border: 1px solid black;}
|
|
|
13 </style>
|
|
|
14 <div id=nav>
|
|
|
15 <a href="https://codemirror.net/5"><h1>CodeMirror</h1><img id=logo src="../doc/logo.png"></a>
|
|
|
16
|
|
|
17 <ul>
|
|
|
18 <li><a href="../index.html">Home</a>
|
|
|
19 <li><a href="../doc/manual.html">Manual</a>
|
|
|
20 <li><a href="https://github.com/codemirror/codemirror5">Code</a>
|
|
|
21 </ul>
|
|
|
22 <ul>
|
|
|
23 <li><a class=active href="#">Mode-Changing</a>
|
|
|
24 </ul>
|
|
|
25 </div>
|
|
|
26
|
|
|
27 <article>
|
|
|
28 <h2>Mode-Changing Demo</h2>
|
|
|
29 <form><textarea id="code" name="code">
|
|
|
30 ;; If there is Scheme code in here, the editor will be in Scheme mode.
|
|
|
31 ;; If you put in JS instead, it'll switch to JS mode.
|
|
|
32
|
|
|
33 (define (double x)
|
|
|
34 (* x x))
|
|
|
35 </textarea></form>
|
|
|
36
|
|
|
37 <p>On changes to the content of the above editor, a (crude) script
|
|
|
38 tries to auto-detect the language used, and switches the editor to
|
|
|
39 either JavaScript or Scheme mode based on that.</p>
|
|
|
40
|
|
|
41 <script>
|
|
|
42 var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
|
|
|
43 mode: "scheme",
|
|
|
44 lineNumbers: true
|
|
|
45 });
|
|
|
46 var pending;
|
|
|
47 editor.on("change", function() {
|
|
|
48 clearTimeout(pending);
|
|
|
49 pending = setTimeout(update, 400);
|
|
|
50 });
|
|
|
51 function looksLikeScheme(code) {
|
|
|
52 return !/^\s*\(\s*function\b/.test(code) && /^\s*[;\(]/.test(code);
|
|
|
53 }
|
|
|
54 function update() {
|
|
|
55 editor.setOption("mode", looksLikeScheme(editor.getValue()) ? "scheme" : "javascript");
|
|
|
56 }
|
|
|
57 </script>
|
|
|
58 </article>
|
