| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960 | <!doctype html><html>  <head>    <meta charset="utf-8">    <title>CodeMirror: Emacs bindings demo</title>    <link rel="stylesheet" href="../lib/codemirror.css">    <script src="../lib/codemirror.js"></script>    <script src="../mode/clike/clike.js"></script>    <script src="../keymap/emacs.js"></script>    <link rel="stylesheet" href="../doc/docs.css">    <style type="text/css">      .CodeMirror {border-top: 1px solid #eee; border-bottom: 1px solid #eee;}    </style>  </head>  <body>    <h1>CodeMirror: Emacs bindings demo</h1>    <form><textarea id="code" name="code">#include "syscalls.h"/* getchar:  simple buffered version */int getchar(void){  static char buf[BUFSIZ];  static char *bufp = buf;  static int n = 0;  if (n == 0) {  /* buffer is empty */    n = read(0, buf, sizeof buf);    bufp = buf;  }  return (--n >= 0) ? (unsigned char) *bufp++ : EOF;}</textarea></form><p>The emacs keybindings are enabled byincluding <a href="../keymap/emacs.js">keymap/emacs.js</a> and settingthe <code>keyMap</code> option to <code>"emacs"</code>. BecauseCodeMirror's internal API is quite different from Emacs, they are onlya loose approximation of actual emacs bindings, though.</p><p>Also note that a lot of browsers disallow certain keys from beingcaptured. For example, Chrome blocks both Ctrl-W and Ctrl-N, with theresult that idiomatic use of Emacs keys will constantly close your tabor open a new window.</p>    <script>      CodeMirror.commands.save = function() {        var elt = editor.getWrapperElement();        elt.style.background = "#def";        setTimeout(function() { elt.style.background = ""; }, 300);      };      var editor = CodeMirror.fromTextArea(document.getElementById("code"), {        lineNumbers: true,        mode: "text/x-csrc",        keyMap: "emacs"      });    </script>  </body></html>
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