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1 <!doctype html>
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2
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3 <title>CodeMirror: Emacs bindings demo</title>
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4 <meta charset="utf-8"/>
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5 <link rel=stylesheet href="../doc/docs.css">
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6
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7 <link rel="stylesheet" href="../lib/codemirror.css">
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8 <link rel="stylesheet" href="../addon/dialog/dialog.css">
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9 <script src="../lib/codemirror.js"></script>
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10 <script src="../mode/clike/clike.js"></script>
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11 <script src="../keymap/emacs.js"></script>
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12 <script src="../addon/edit/matchbrackets.js"></script>
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13 <script src="../addon/comment/comment.js"></script>
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14 <script src="../addon/dialog/dialog.js"></script>
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15 <script src="../addon/search/searchcursor.js"></script>
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16 <script src="../addon/search/search.js"></script>
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17 <style>
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18 .CodeMirror {border-top: 1px solid #eee; border-bottom: 1px solid #eee;}
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19 </style>
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20 <div id=nav>
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21 <a href="https://codemirror.net/5"><h1>CodeMirror</h1><img id=logo src="../doc/logo.png"></a>
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22
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23 <ul>
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24 <li><a href="../index.html">Home</a>
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25 <li><a href="../doc/manual.html">Manual</a>
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26 <li><a href="https://github.com/codemirror/codemirror5">Code</a>
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27 </ul>
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28 <ul>
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29 <li><a class=active href="#">Emacs bindings</a>
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30 </ul>
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31 </div>
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32
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33 <article>
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34 <h2>Emacs bindings demo</h2>
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35 <form><textarea id="code" name="code">
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36 #include "syscalls.h"
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37 /* getchar: simple buffered version */
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38 int getchar(void)
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39 {
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40 static char buf[BUFSIZ];
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41 static char *bufp = buf;
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42 static int n = 0;
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43 if (n == 0) { /* buffer is empty */
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44 n = read(0, buf, sizeof buf);
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45 bufp = buf;
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46 }
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47 return (--n >= 0) ? (unsigned char) *bufp++ : EOF;
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48 }
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49 </textarea></form>
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50
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51 <p>The emacs keybindings are enabled by
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52 including <a href="../keymap/emacs.js">keymap/emacs.js</a> and setting
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53 the <code>keyMap</code> option to <code>"emacs"</code>. Because
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54 CodeMirror's internal API is quite different from Emacs, they are only
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55 a loose approximation of actual emacs bindings, though.</p>
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56
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57 <p>Also note that a lot of browsers disallow certain keys from being
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58 captured. For example, Chrome blocks both Ctrl-W and Ctrl-N, with the
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59 result that idiomatic use of Emacs keys will constantly close your tab
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60 or open a new window.</p>
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61
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62 <script>
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63 CodeMirror.commands.save = function() {
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64 var elt = editor.getWrapperElement();
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65 elt.style.background = "#def";
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66 setTimeout(function() { elt.style.background = ""; }, 300);
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67 };
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68 var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
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69 lineNumbers: true,
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70 mode: "text/x-csrc",
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71 matchBrackets: true,
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72 keyMap: "emacs"
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73 });
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74 </script>
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75
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76 </article>
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