github.com/aacfactory/fns@v1.2.86-0.20240310083819-80d667fc0a17/services/validators/regex.go (about)

     1  /*
     2   * Copyright 2023 Wang Min Xiang
     3   *
     4   * Licensed under the Apache License, Version 2.0 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   * 	http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   *
    16   */
    17  
    18  package validators
    19  
    20  import (
    21  	"fmt"
    22  	"github.com/go-playground/validator/v10"
    23  	"reflect"
    24  	"regexp"
    25  )
    26  
    27  func validateRegisterRegex(validate *validator.Validate) *validator.Validate {
    28  	err := validate.RegisterValidation("regexp", func(fl validator.FieldLevel) (ok bool) {
    29  		if fl.Field().Type().Kind() != reflect.String {
    30  			return
    31  		}
    32  		exp := fl.Param()
    33  		if exp == "" {
    34  			return
    35  		}
    36  		value := fl.Field().String()
    37  		ok, _ = regexp.MatchString(exp, value)
    38  		return
    39  	})
    40  	if err != nil {
    41  		panic(fmt.Errorf("fns: validate register regex failed, %v", err))
    42  	}
    43  	return validate
    44  }