docs: function evalFn(token, format_lib) {
      var splited = token.trim().split(/[\(\)]/g);
  
      if (splited.length < 3)
          return token;
  
      if (!format_lib)
          return token
  
      var fnstring = splited[0];
      var fnparams = splited.slice(1, splited.length - 1);
      var fn = format_lib[fnstring];
  
      if (typeof fn !== "function")
          return "";
  
      return fn.apply(null, fnparams);
  }