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76 lines
2.4 KiB
76 lines
2.4 KiB
<!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> |
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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="https://codemirror.net"><h1>CodeMirror</h1><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/codemirror/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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matchBrackets: true, |
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keyMap: "emacs" |
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}); |
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</script> |
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</article>
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