code: function (point) {
              if (!isText(point.node)) {
                  return false;
              }
  
              var ch = point.node.nodeValue.charAt(point.offset - 1);
              return ch && (ch !== ' ' && ch !== NBSP_CHAR);
          }
docs: returns whether point has character or not.
  
  @param {Point} point
  @return {Boolean}