mirror of
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.
76 lines
2.4 KiB
HTML
76 lines
2.4 KiB
HTML
<!doctype html>
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<title>CodeMirror: Emacs bindings 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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<link rel="stylesheet" href="../addon/dialog/dialog.css">
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<script src="../lib/codemirror.js"></script>
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<script src="../mode/clike/clike.js"></script>
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<script src="../keymap/emacs.js"></script>
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<script src="../addon/edit/matchbrackets.js"></script>
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<script src="../addon/comment/comment.js"></script>
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<script src="../addon/dialog/dialog.js"></script>
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<script src="../addon/search/searchcursor.js"></script>
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<script src="../addon/search/search.js"></script>
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<style type="text/css">
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.CodeMirror {border-top: 1px solid #eee; border-bottom: 1px solid #eee;}
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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="#">Emacs bindings</a>
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</ul>
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</div>
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<article>
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<h2>Emacs bindings demo</h2>
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<form><textarea id="code" name="code">
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#include "syscalls.h"
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/* getchar: simple buffered version */
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int getchar(void)
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{
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static char buf[BUFSIZ];
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static char *bufp = buf;
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static int n = 0;
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if (n == 0) { /* buffer is empty */
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n = read(0, buf, sizeof buf);
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bufp = buf;
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}
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return (--n >= 0) ? (unsigned char) *bufp++ : EOF;
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}
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</textarea></form>
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<p>The emacs keybindings are enabled by
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including <a href="../keymap/emacs.js">keymap/emacs.js</a> and setting
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the <code>keyMap</code> option to <code>"emacs"</code>. Because
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CodeMirror's internal API is quite different from Emacs, they are only
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a loose approximation of actual emacs bindings, though.</p>
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<p>Also note that a lot of browsers disallow certain keys from being
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captured. For example, Chrome blocks both Ctrl-W and Ctrl-N, with the
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result that idiomatic use of Emacs keys will constantly close your tab
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or open a new window.</p>
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<script>
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CodeMirror.commands.save = function() {
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var elt = editor.getWrapperElement();
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elt.style.background = "#def";
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setTimeout(function() { elt.style.background = ""; }, 300);
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};
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var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
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lineNumbers: true,
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mode: "text/x-csrc",
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keyMap: "emacs"
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});
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</script>
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</article>
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