Function repeatFn

static/js/codemirror/keymap/vim.js:1455–1461

(cm, fn, repeat)

      return true;
    }
    function repeatFn(cm, fn, repeat) {
      return function() {
        for (var i = 0; i < repeat; i++) {
          fn(cm);
        }
      };
    }
    function copyCursor(cur) {
      return { line: cur.line, ch: cur.ch };
    }