anchor.diff:  
       if ((method.startsWith('pattern{') || method.startsWith("function-string{")) && method.endsWith("}") && new RegExp(r"[{}]").allMatches(method.replaceAll(r"\\", "").replaceAll(r"\{", "").replaceAll(r"\}", "")).length == 2) {
   
  -      if(method.startsWith("p")){
  +      if (method.startsWith("p")) {
           var content = method.substring(8, method.length - 1).replaceAll(r"\{", r"{").replaceAll(r"\}", "}");
           return (String value) => new RegExp(content).hasMatch(value);
         }
         var content = method.substring(16, method.length - 1).replaceAll(r"\{", r"{").replaceAll(r"\}", "}");
   
  -      var f = (String value){
  +      var f = (String value) {
           var h = FS.register.addType(Validator, this);
           var h1 = FS.register.addType(String, value);
           var h2 = FS.register.addAlias('_value', h1);
  
positive.code: 
    bool get valid => _validForm;
  
    Validator operator[](String name) {
      var elm = element.querySelector('input:not([type=submit])[name=$name], textarea[name=$name], select[name=$name]');
      return elm == null? elm: new Validator(elm);
    }
  
  }
negative.code:       return _parseMethod(method.substring(1, method.length - 1).trim());
      } else if (method.contains("&&")) {
        return "&&".allMatches(method).fold(null, folder);
      } else if (method.contains("||")) {
        return "||".allMatches(method).fold(null, folder);
      }
  
  