处理html字符串

relaceByMatch.js

.factory('htmlStrCut', function () {
    return {
      strCut: function (strs, len) {
        var str_length = 0;
        if (strs != null) {
          var str = strs.replace(/<img.+?>/ig, '[图片]');
          var str_len = str.length;
          var text;
          var cut = [];
          str = str.replace(/(\n)/g, "");
          str = str.replace(/(\t)/g, "");
          str = str.replace(/(\r)/g, "");
          str = str.replace(/<\/?[^>]*>/g, "");
          str = str.replace(/\s*/g, "");
          str = str.replace(/<[^>]*>/g, "");
          str = str.replace(/&nbsp;/g, "");
          if (str_len < len) {
            return str;
          }
          for (var i = 0; i < str_len; i++) {
            text = str.charAt(i);
            cut = cut.concat(text);
            str_length++;
            if (str_length >= len) {
              cut = cut.concat('...');
              return cut.join('');
            }
          }
        }
      },

    }