Function clipCursorToContent

lib/web/CodeMirror/keymap/vim.js:2916–2923

* Clips cursor to ensure that line is within the buffer's range * If includeLineBreak is true, then allow cur.ch == lineLength.

(cm, cur)

     * If includeLineBreak is true, then allow cur.ch == lineLength.
     */
    function clipCursorToContent(cm, cur) {
      var vim = cm.state.vim;
      var includeLineBreak = vim.insertMode || vim.visualMode;
      var line = Math.min(Math.max(cm.firstLine(), cur.line), cm.lastLine() );
      var maxCh = lineLength(cm, line) - 1 + !!includeLineBreak;
      var ch = Math.min(Math.max(0, cur.ch), maxCh);
      return Pos(line, ch);
    }
    function copyArgs(args) {
      var ret = {};
      for (var prop in args) {