Merge branch 'master' into master

.github/workflows/workflow.yml

@@ -8,7 +8,7 @@ jobs:
   test:
     strategy:
       matrix:
-        go-version: [1.17.x, 1.18.x]
+        go-version: [1.19.x]
         os: [ubuntu-latest, macos-latest, windows-latest]
     runs-on: ${{ matrix.os }}
     steps:
@@ -32,7 +32,7 @@ jobs:
         run: go test -race -covermode=atomic -coverprofile="profile.cov" ./...
 
       - name: Send Coverage
-        if: matrix.os == 'ubuntu-latest' && matrix.go-version == '1.18.x'
+        if: matrix.os == 'ubuntu-latest' && matrix.go-version == '1.19.x'
         uses: shogo82148/actions-goveralls@v1
         with:
           path-to-profile: profile.cov
@@ -43,9 +43,9 @@ jobs:
     steps:
       - uses: actions/setup-go@v3
         with:
-          go-version: 1.18.x
+          go-version: 1.19.x
       - uses: actions/checkout@v3
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v3
         with:
-          version: v1.45.2
+          version: v1.50.1

.gitignore

@@ -28,3 +28,4 @@ _testmain.go
 *.txt
 cover.html
 README.html
+.idea

README.md

@@ -1,7 +1,7 @@
 Package validator
 =================
-<img align="right" src="https://raw.githubusercontent.com/go-playground/validator/v9/logo.png">[![Join the chat at https://gitter.im/go-playground/validator](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/go-playground/validator?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
-![Project status](https://img.shields.io/badge/version-10.11.0-green.svg)
+<img align="right" src="https://raw.githubusercontent.com/go-playground/validator/v10/logo.png">[![Join the chat at https://gitter.im/go-playground/validator](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/go-playground/validator?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+![Project status](https://img.shields.io/badge/version-10.12.0-green.svg)
 [![Build Status](https://travis-ci.org/go-playground/validator.svg?branch=master)](https://travis-ci.org/go-playground/validator)
 [![Coverage Status](https://coveralls.io/repos/go-playground/validator/badge.svg?branch=master&service=github)](https://coveralls.io/github/go-playground/validator?branch=master)
 [![Go Report Card](https://goreportcard.com/badge/github.com/go-playground/validator)](https://goreportcard.com/report/github.com/go-playground/validator)
@@ -73,8 +73,8 @@ Baked-in Validations
 | - | - |
 | eqcsfield | Field Equals Another Field (relative)|
 | eqfield | Field Equals Another Field |
-| fieldcontains | NOT DOCUMENTED IN doc.go |
-| fieldexcludes | NOT DOCUMENTED IN doc.go |
+| fieldcontains | Check the indicated characters are present in the Field |
+| fieldexcludes | Check the indicated characters are not present in the field |
 | gtcsfield | Field Greater Than Another Relative Field |
 | gtecsfield | Field Greater Than or Equal To Another Relative Field |
 | gtefield | Field Greater Than or Equal To Another Field |
@@ -114,6 +114,7 @@ Baked-in Validations
 | unix_addr | Unix domain socket end point Address |
 | uri | URI String |
 | url | URL String |
+| http_url | HTTP URL String |
 | url_encoded | URL Encoded |
 | urn_rfc2141 | Urn RFC 2141 String |
 
@@ -137,7 +138,7 @@ Baked-in Validations
 | excludesrune | Excludes Rune |
 | lowercase | Lowercase |
 | multibyte | Multi-Byte Characters |
-| number | NOT DOCUMENTED IN doc.go |
+| number | Number |
 | numeric | Numeric |
 | printascii | Printable ASCII |
 | startsnotwith | Starts Not With |
@@ -149,11 +150,14 @@ Baked-in Validations
 | - | - |
 | base64 | Base64 String |
 | base64url | Base64URL String |
+| base64rawurl | Base64RawURL String |
 | bic | Business Identifier Code (ISO 9362) |
 | bcp47_language_tag | Language tag (BCP 47) |
 | btc_addr | Bitcoin Address |
 | btc_addr_bech32 | Bitcoin Bech32 Address (segwit) |
 | credit_card | Credit Card Number |
+| mongodb | MongoDB ObjectID |
+| cron | Cron |
 | datetime | Datetime |
 | e164 | e164 formatted phone number |
 | email | E-mail String
@@ -176,6 +180,7 @@ Baked-in Validations
 | jwt | JSON Web Token (JWT) |
 | latitude | Latitude |
 | longitude | Longitude |
+| luhn_checksum | Luhn Algorithm Checksum (for strings and (u)int) |
 | postcode_iso3166_alpha2 | Postcode |
 | postcode_iso3166_alpha2_field | Postcode |
 | rgb | RGB String |
@@ -202,22 +207,27 @@ Baked-in Validations
 | tiger192 | TIGER192 hash |
 | semver | Semantic Versioning 2.0.0 |
 | ulid | Universally Unique Lexicographically Sortable Identifier ULID |
+| cve | Common Vulnerabilities and Exposures Identifier (CVE id) |
 
 ### Comparisons:
 | Tag | Description |
 | - | - |
 | eq | Equals |
+| eq_ignore_case | Equals ignoring case |
 | gt | Greater than|
 | gte | Greater than or equal |
 | lt | Less Than |
 | lte | Less Than or Equal |
 | ne | Not Equal |
+| ne_ignore_case | Not Equal ignoring case |
 
 ### Other:
 | Tag | Description |
 | - | - |
-| dir | Directory |
-| file | File path |
+| dir | Existing Directory |
+| dirpath | Directory Path |
+| file | Existing File |
+| filepath | File Path |
 | isdefault | Is Default |
 | len | Length |
 | max | Maximum |

_examples/struct-level/main.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"encoding/json"
 	"fmt"
 	"reflect"
 	"strings"
@@ -8,6 +9,36 @@ import (
 	"github.com/go-playground/validator/v10"
 )
 
+type validationError struct {
+	Namespace       string `json:"namespace"` // can differ when a custom TagNameFunc is registered or
+	Field           string `json:"field"`     // by passing alt name to ReportError like below
+	StructNamespace string `json:"structNamespace"`
+	StructField     string `json:"structField"`
+	Tag             string `json:"tag"`
+	ActualTag       string `json:"actualTag"`
+	Kind            string `json:"kind"`
+	Type            string `json:"type"`
+	Value           string `json:"value"`
+	Param           string `json:"param"`
+	Message         string `json:"message"`
+}
+
+type Gender uint
+
+const (
+	Male Gender = iota + 1
+	Female
+	Intersex
+)
+
+func (gender Gender) String() string {
+	terms := []string{"Male", "Female", "Intersex"}
+	if gender < Male || gender > Intersex {
+		return "unknown"
+	}
+	return terms[gender]
+}
+
 // User contains user information
 type User struct {
 	FirstName      string     `json:"fname"`
@@ -16,6 +47,7 @@ type User struct {
 	Email          string     `json:"e-mail" validate:"required,email"`
 	FavouriteColor string     `validate:"hexcolor|rgb|rgba"`
 	Addresses      []*Address `validate:"required,dive,required"` // a person can have a home and cottage...
+	Gender         Gender     `json:"gender" validate:"required,gender_custom_validation"`
 }
 
 // Address houses a users address information
@@ -47,6 +79,17 @@ func main() {
 	// internally dereferences during it's type checks.
 	validate.RegisterStructValidation(UserStructLevelValidation, User{})
 
+	// register a custom validation for user genre on a line
+	// validates that an enum is within the interval
+	err := validate.RegisterValidation("gender_custom_validation", func(fl validator.FieldLevel) bool {
+		value := fl.Field().Interface().(Gender)
+		return value.String() != "unknown"
+	})
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+
 	// build 'User' info, normally posted data etc...
 	address := &Address{
 		Street: "Eavesdown Docks",
@@ -65,7 +108,7 @@ func main() {
 	}
 
 	// returns InvalidValidationError for bad validation input, nil or ValidationErrors ( []FieldError )
-	err := validate.Struct(user)
+	err = validate.Struct(user)
 	if err != nil {
 
 		// this check is only needed when your code could produce
@@ -77,18 +120,27 @@ func main() {
 		}
 
 		for _, err := range err.(validator.ValidationErrors) {
-
-			fmt.Println(err.Namespace()) // can differ when a custom TagNameFunc is registered or
-			fmt.Println(err.Field())     // by passing alt name to ReportError like below
-			fmt.Println(err.StructNamespace())
-			fmt.Println(err.StructField())
-			fmt.Println(err.Tag())
-			fmt.Println(err.ActualTag())
-			fmt.Println(err.Kind())
-			fmt.Println(err.Type())
-			fmt.Println(err.Value())
-			fmt.Println(err.Param())
-			fmt.Println()
+			e := validationError{
+				Namespace:       err.Namespace(),
+				Field:           err.Field(),
+				StructNamespace: err.StructNamespace(),
+				StructField:     err.StructField(),
+				Tag:             err.Tag(),
+				ActualTag:       err.ActualTag(),
+				Kind:            fmt.Sprintf("%v", err.Kind()),
+				Type:            fmt.Sprintf("%v", err.Type()),
+				Value:           fmt.Sprintf("%v", err.Value()),
+				Param:           err.Param(),
+				Message:         err.Error(),
+			}
+
+			indent, err := json.MarshalIndent(e, "", "  ")
+			if err != nil {
+				fmt.Println(err)
+				panic(err)
+			}
+
+			fmt.Println(string(indent))
 		}
 
 		// from here you can create your own error messages in whatever language you wish

baked_in.go

@@ -7,6 +7,7 @@ import (
 	"encoding/hex"
 	"encoding/json"
 	"fmt"
+	"io/fs"
 	"net"
 	"net/url"
 	"os"
@@ -14,13 +15,14 @@ import (
 	"strconv"
 	"strings"
 	"sync"
+	"syscall"
 	"time"
 	"unicode/utf8"
 
 	"golang.org/x/crypto/sha3"
 	"golang.org/x/text/language"
 
-	urn "github.com/leodido/go-urn"
+	"github.com/leodido/go-urn"
 )
 
 // Func accepts a FieldLevel interface for all validation needs. The return
@@ -87,7 +89,9 @@ var (
 		"min":                           hasMinOf,
 		"max":                           hasMaxOf,
 		"eq":                            isEq,
+		"eq_ignore_case":                isEqIgnoreCase,
 		"ne":                            isNe,
+		"ne_ignore_case":                isNeIgnoreCase,
 		"lt":                            isLt,
 		"lte":                           isLte,
 		"gt":                            isGt,
@@ -122,11 +126,14 @@ var (
 		"e164":                          isE164,
 		"email":                         isEmail,
 		"url":                           isURL,
+		"http_url":                      isHttpURL,
 		"uri":                           isURI,
 		"urn_rfc2141":                   isUrnRFC2141, // RFC 2141
 		"file":                          isFile,
+		"filepath":                      isFilePath,
 		"base64":                        isBase64,
 		"base64url":                     isBase64URL,
+		"base64rawurl":                  isBase64RawURL,
 		"contains":                      contains,
 		"containsany":                   containsAny,
 		"containsrune":                  containsRune,
@@ -141,6 +148,7 @@ var (
 		"isbn10":                        isISBN10,
 		"isbn13":                        isISBN13,
 		"eth_addr":                      isEthereumAddress,
+		"eth_addr_checksum":             isEthereumAddressChecksum,
 		"btc_addr":                      isBitcoinAddress,
 		"btc_addr_bech32":               isBitcoinBech32Address,
 		"uuid":                          isUUID,
@@ -195,6 +203,7 @@ var (
 		"html_encoded":                  isHTMLEncoded,
 		"url_encoded":                   isURLEncoded,
 		"dir":                           isDir,
+		"dirpath":                       isDirPath,
 		"json":                          isJSON,
 		"jwt":                           isJWT,
 		"hostname_port":                 isHostnamePort,
@@ -215,6 +224,10 @@ var (
 		"semver":                        isSemverFormat,
 		"dns_rfc1035_label":             isDnsRFC1035LabelFormat,
 		"credit_card":                   isCreditCard,
+		"cve":                           isCveFormat,
+		"luhn_checksum":                 hasLuhnChecksum,
+		"mongodb":                       isMongoDB,
+		"cron":                          isCron,
 	}
 )
 
@@ -308,18 +321,42 @@ func isUnique(fl FieldLevel) bool {
 		}
 
 		m := reflect.MakeMap(reflect.MapOf(sfTyp, v.Type()))
+		var fieldlen int
 		for i := 0; i < field.Len(); i++ {
-			m.SetMapIndex(reflect.Indirect(reflect.Indirect(field.Index(i)).FieldByName(param)), v)
+			key := reflect.Indirect(reflect.Indirect(field.Index(i)).FieldByName(param))
+			if key.IsValid() {
+				fieldlen++
+				m.SetMapIndex(key, v)
+			}
 		}
-		return field.Len() == m.Len()
+		return fieldlen == m.Len()
 	case reflect.Map:
-		m := reflect.MakeMap(reflect.MapOf(field.Type().Elem(), v.Type()))
+		var m reflect.Value
+		if field.Type().Elem().Kind() == reflect.Ptr {
+			m = reflect.MakeMap(reflect.MapOf(field.Type().Elem().Elem(), v.Type()))
+		} else {
+			m = reflect.MakeMap(reflect.MapOf(field.Type().Elem(), v.Type()))
+		}
 
 		for _, k := range field.MapKeys() {
-			m.SetMapIndex(field.MapIndex(k), v)
+			m.SetMapIndex(reflect.Indirect(field.MapIndex(k)), v)
 		}
+
 		return field.Len() == m.Len()
 	default:
+		if parent := fl.Parent(); parent.Kind() == reflect.Struct {
+			uniqueField := parent.FieldByName(param)
+			if uniqueField == reflect.ValueOf(nil) {
+				panic(fmt.Sprintf("Bad field name provided %s", param))
+			}
+
+			if uniqueField.Kind() != field.Kind() {
+				panic(fmt.Sprintf("Bad field type %T:%T", field.Interface(), uniqueField.Interface()))
+			}
+
+			return field.Interface() != uniqueField.Interface()
+		}
+
 		panic(fmt.Sprintf("Bad field type %T", field.Interface()))
 	}
 }
@@ -614,14 +651,16 @@ func isISBN10(fl FieldLevel) bool {
 func isEthereumAddress(fl FieldLevel) bool {
 	address := fl.Field().String()
 
+	return ethAddressRegex.MatchString(address)
+}
+
+// isEthereumAddressChecksum is the validation function for validating if the field's value is a valid checksumed Ethereum address.
+func isEthereumAddressChecksum(fl FieldLevel) bool {
+	address := fl.Field().String()
+
 	if !ethAddressRegex.MatchString(address) {
 		return false
 	}
-
-	if ethAddressRegexUpper.MatchString(address) || ethAddressRegexLower.MatchString(address) {
-		return true
-	}
-
 	// Checksum validation. Reference: https://github.com/ethereum/EIPs/blob/master/EIPS/eip-55.md
 	address = address[2:] // Skip "0x" prefix.
 	h := sha3.NewLegacyKeccak256()
@@ -890,6 +929,12 @@ func isNe(fl FieldLevel) bool {
 	return !isEq(fl)
 }
 
+// isNe is the validation function for validating that the field's string value does not equal the
+// provided param value. The comparison is case-insensitive
+func isNeIgnoreCase(fl FieldLevel) bool {
+	return !isEqIgnoreCase(fl)
+}
+
 // isLteCrossStructField is the validation function for validating if the current field's value is less than or equal to the field, within a separate struct, specified by the param's value.
 func isLteCrossStructField(fl FieldLevel) bool {
 	field := fl.Field()
@@ -1261,6 +1306,22 @@ func isEq(fl FieldLevel) bool {
 	panic(fmt.Sprintf("Bad field type %T", field.Interface()))
 }
 
+// isEqIgnoreCase is the validation function for validating if the current field's string value is
+// equal to the param's value.
+// The comparison is case-insensitive.
+func isEqIgnoreCase(fl FieldLevel) bool {
+	field := fl.Field()
+	param := fl.Param()
+
+	switch field.Kind() {
+
+	case reflect.String:
+		return strings.EqualFold(field.String(), param)
+	}
+
+	panic(fmt.Sprintf("Bad field type %T", field.Interface()))
+}
+
 // isPostcodeByIso3166Alpha2 validates by value which is country code in iso 3166 alpha 2
 // example: `postcode_iso3166_alpha2=US`
 func isPostcodeByIso3166Alpha2(fl FieldLevel) bool {
@@ -1312,6 +1373,11 @@ func isBase64URL(fl FieldLevel) bool {
 	return base64URLRegex.MatchString(fl.Field().String())
 }
 
+// isBase64RawURL is the validation function for validating if the current field's value is a valid base64 URL safe string without '=' padding.
+func isBase64RawURL(fl FieldLevel) bool {
+	return base64RawURLRegex.MatchString(fl.Field().String())
+}
+
 // isURI is the validation function for validating if the current field's value is a valid URI.
 func isURI(fl FieldLevel) bool {
 	field := fl.Field()
@@ -1371,6 +1437,23 @@ func isURL(fl FieldLevel) bool {
 	panic(fmt.Sprintf("Bad field type %T", field.Interface()))
 }
 
+// isHttpURL is the validation function for validating if the current field's value is a valid HTTP(s) URL.
+func isHttpURL(fl FieldLevel) bool {
+	if !isURL(fl) {
+		return false
+	}
+
+	field := fl.Field()
+	switch field.Kind() {
+	case reflect.String:
+
+		s := strings.ToLower(field.String())
+		return strings.HasPrefix(s, "http://") || strings.HasPrefix(s, "https://")
+	}
+
+	panic(fmt.Sprintf("Bad field type %T", field.Interface()))
+}
+
 // isUrnRFC2141 is the validation function for validating if the current field's value is a valid URN as per RFC 2141.
 func isUrnRFC2141(fl FieldLevel) bool {
 	field := fl.Field()
@@ -1388,7 +1471,7 @@ func isUrnRFC2141(fl FieldLevel) bool {
 	panic(fmt.Sprintf("Bad field type %T", field.Interface()))
 }
 
-// isFile is the validation function for validating if the current field's value is a valid file path.
+// isFile is the validation function for validating if the current field's value is a valid existing file path.
 func isFile(fl FieldLevel) bool {
 	field := fl.Field()
 
@@ -1405,6 +1488,57 @@ func isFile(fl FieldLevel) bool {
 	panic(fmt.Sprintf("Bad field type %T", field.Interface()))
 }
 
+// isFilePath is the validation function for validating if the current field's value is a valid file path.
+func isFilePath(fl FieldLevel) bool {
+
+	var exists bool
+	var err error
+
+	field := fl.Field()
+
+	// If it exists, it obviously is valid.
+	// This is done first to avoid code duplication and unnecessary additional logic.
+	if exists = isFile(fl); exists {
+		return true
+	}
+
+	// It does not exist but may still be a valid filepath.
+	switch field.Kind() {
+	case reflect.String:
+		// Every OS allows for whitespace, but none
+		// let you use a file with no filename (to my knowledge).
+		// Unless you're dealing with raw inodes, but I digress.
+		if strings.TrimSpace(field.String()) == "" {
+			return false
+		}
+		// We make sure it isn't a directory.
+		if strings.HasSuffix(field.String(), string(os.PathSeparator)) {
+			return false
+		}
+		if _, err = os.Stat(field.String()); err != nil {
+			switch t := err.(type) {
+			case *fs.PathError:
+				if t.Err == syscall.EINVAL {
+					// It's definitely an invalid character in the filepath.
+					return false
+				}
+				// It could be a permission error, a does-not-exist error, etc.
+				// Out-of-scope for this validation, though.
+				return true
+			default:
+				// Something went *seriously* wrong.
+				/*
+					Per https://pkg.go.dev/os#Stat:
+						"If there is an error, it will be of type *PathError."
+				*/
+				panic(err)
+			}
+		}
+	}
+
+	panic(fmt.Sprintf("Bad field type %T", field.Interface()))
+}
+
 // isE164 is the validation function for validating if the current field's value is a valid e.164 formatted phone number.
 func isE164(fl FieldLevel) bool {
 	return e164Regex.MatchString(fl.Field().String())
@@ -1485,10 +1619,15 @@ func isAlphaUnicode(fl FieldLevel) bool {
 	return alphaUnicodeRegex.MatchString(fl.Field().String())
 }
 
-// isBoolean is the validation function for validating if the current field's value can be safely converted to a boolean.
+// isBoolean is the validation function for validating if the current field's value is a valid boolean value or can be safely converted to a boolean value.
 func isBoolean(fl FieldLevel) bool {
-	_, err := strconv.ParseBool(fl.Field().String())
-	return err == nil
+	switch fl.Field().Kind() {
+	case reflect.Bool:
+		return true
+	default:
+		_, err := strconv.ParseBool(fl.Field().String())
+		return err == nil
+	}
 }
 
 // isDefault is the opposite of required aka hasValue
@@ -1535,7 +1674,9 @@ func requireCheckFieldKind(fl FieldLevel, param string, defaultNotFoundValue boo
 }
 
 // requireCheckFieldValue is a func for check field value
-func requireCheckFieldValue(fl FieldLevel, param string, value string, defaultNotFoundValue bool) bool {
+func requireCheckFieldValue(
+	fl FieldLevel, param string, value string, defaultNotFoundValue bool,
+) bool {
 	field, kind, _, found := fl.GetStructFieldOKAdvanced2(fl.Parent(), param)
 	if !found {
 		return defaultNotFoundValue
@@ -1634,10 +1775,10 @@ func excludedUnless(fl FieldLevel) bool {
 	}
 	for i := 0; i < len(params); i += 2 {
 		if !requireCheckFieldValue(fl, params[i], params[i+1], false) {
-			return true
+			return !hasValue(fl)
 		}
 	}
-	return !hasValue(fl)
+	return true
 }
 
 // excludedWith is the validation function
@@ -2286,7 +2427,7 @@ func isFQDN(fl FieldLevel) bool {
 	return fqdnRegexRFC1123.MatchString(val)
 }
 
-// isDir is the validation function for validating if the current field's value is a valid directory.
+// isDir is the validation function for validating if the current field's value is a valid existing directory.
 func isDir(fl FieldLevel) bool {
 	field := fl.Field()
 
@@ -2302,6 +2443,64 @@ func isDir(fl FieldLevel) bool {
 	panic(fmt.Sprintf("Bad field type %T", field.Interface()))
 }
 
+// isDirPath is the validation function for validating if the current field's value is a valid directory.
+func isDirPath(fl FieldLevel) bool {
+
+	var exists bool
+	var err error
+
+	field := fl.Field()
+
+	// If it exists, it obviously is valid.
+	// This is done first to avoid code duplication and unnecessary additional logic.
+	if exists = isDir(fl); exists {
+		return true
+	}
+
+	// It does not exist but may still be a valid path.
+	switch field.Kind() {
+	case reflect.String:
+		// Every OS allows for whitespace, but none
+		// let you use a dir with no name (to my knowledge).
+		// Unless you're dealing with raw inodes, but I digress.
+		if strings.TrimSpace(field.String()) == "" {
+			return false
+		}
+		if _, err = os.Stat(field.String()); err != nil {
+			switch t := err.(type) {
+			case *fs.PathError:
+				if t.Err == syscall.EINVAL {
+					// It's definitely an invalid character in the path.
+					return false
+				}
+				// It could be a permission error, a does-not-exist error, etc.
+				// Out-of-scope for this validation, though.
+				// Lastly, we make sure it is a directory.
+				if strings.HasSuffix(field.String(), string(os.PathSeparator)) {
+					return true
+				} else {
+					return false
+				}
+			default:
+				// Something went *seriously* wrong.
+				/*
+					Per https://pkg.go.dev/os#Stat:
+						"If there is an error, it will be of type *PathError."
+				*/
+				panic(err)
+			}
+		}
+		// We repeat the check here to make sure it is an explicit directory in case the above os.Stat didn't trigger an error.
+		if strings.HasSuffix(field.String(), string(os.PathSeparator)) {
+			return true
+		} else {
+			return false
+		}
+	}
+
+	panic(fmt.Sprintf("Bad field type %T", field.Interface()))
+}
+
 // isJSON is the validation function for validating if the current field's value is a valid json string.
 func isJSON(fl FieldLevel) bool {
 	field := fl.Field()
@@ -2327,7 +2526,9 @@ func isHostnamePort(fl FieldLevel) bool {
 		return false
 	}
 	// Port must be a iny <= 65535.
-	if portNum, err := strconv.ParseInt(port, 10, 32); err != nil || portNum > 65535 || portNum < 1 {
+	if portNum, err := strconv.ParseInt(
+		port, 10, 32,
+	); err != nil || portNum > 65535 || portNum < 1 {
 		return false
 	}
 
@@ -2490,6 +2691,13 @@ func isSemverFormat(fl FieldLevel) bool {
 	return semverRegex.MatchString(semverString)
 }
 
+// isCveFormat is the validation function for validating if the current field's value is a valid cve id, defined in CVE mitre org
+func isCveFormat(fl FieldLevel) bool {
+	cveString := fl.Field().String()
+
+	return cveRegex.MatchString(cveString)
+}
+
 // isDnsRFC1035LabelFormat is the validation function
 // for validating if the current field's value is
 // a valid dns RFC 1035 label, defined in RFC 1035.
@@ -2498,6 +2706,35 @@ func isDnsRFC1035LabelFormat(fl FieldLevel) bool {
 	return dnsRegexRFC1035Label.MatchString(val)
 }
 
+// digitsHaveLuhnChecksum returns true if and only if the last element of the given digits slice is the Luhn checksum of the previous elements
+func digitsHaveLuhnChecksum(digits []string) bool {
+	size := len(digits)
+	sum := 0
+	for i, digit := range digits {
+		value, err := strconv.Atoi(digit)
+		if err != nil {
+			return false
+		}
+		if size%2 == 0 && i%2 == 0 || size%2 == 1 && i%2 == 1 {
+			v := value * 2
+			if v >= 10 {
+				sum += 1 + (v % 10)
+			} else {
+				sum += v
+			}
+		} else {
+			sum += value
+		}
+	}
+	return (sum % 10) == 0
+}
+
+// isMongoDB is the validation function for validating if the current field's value is valid mongoDB objectID
+func isMongoDB(fl FieldLevel) bool {
+	val := fl.Field().String()
+	return mongodbRegex.MatchString(val)
+}
+
 // isCreditCard is the validation function for validating if the current field's value is a valid credit card number
 func isCreditCard(fl FieldLevel) bool {
 	val := fl.Field().String()
@@ -2516,22 +2753,33 @@ func isCreditCard(fl FieldLevel) bool {
 		return false
 	}
 
-	sum := 0
-	for i, digit := range ccDigits {
-		value, err := strconv.Atoi(digit)
-		if err != nil {
-			return false
-		}
-		if size%2 == 0 && i%2 == 0 || size%2 == 1 && i%2 == 1 {
-			v := value * 2
-			if v >= 10 {
-				sum += 1 + (v % 10)
-			} else {
-				sum += v
-			}
-		} else {
-			sum += value
-		}
+	return digitsHaveLuhnChecksum(ccDigits)
+}
+
+// hasLuhnChecksum is the validation for validating if the current field's value has a valid Luhn checksum
+func hasLuhnChecksum(fl FieldLevel) bool {
+	field := fl.Field()
+	var str string // convert to a string which will then be split into single digits; easier and more readable than shifting/extracting single digits from a number
+	switch field.Kind() {
+	case reflect.String:
+		str = field.String()
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		str = strconv.FormatInt(field.Int(), 10)
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
+		str = strconv.FormatUint(field.Uint(), 10)
+	default:
+		panic(fmt.Sprintf("Bad field type %T", field.Interface()))
 	}
-	return (sum % 10) == 0
+	size := len(str)
+	if size < 2 { // there has to be at least one digit that carries a meaning + the checksum
+		return false
+	}
+	digits := strings.Split(str, "")
+	return digitsHaveLuhnChecksum(digits)
+}
+
+// isCron is the validation function for validating if the current field's value is a valid cron expression
+func isCron(fl FieldLevel) bool {
+	cronString := fl.Field().String()
+	return cronRegex.MatchString(cronString)
 }

country_codes.go

@@ -51,7 +51,7 @@ var iso3166_1_alpha2 = map[string]bool{
 	"TV": true, "UG": true, "UA": true, "AE": true, "GB": true,
 	"US": true, "UM": true, "UY": true, "UZ": true, "VU": true,
 	"VE": true, "VN": true, "VG": true, "VI": true, "WF": true,
-	"EH": true, "YE": true, "ZM": true, "ZW": true,
+	"EH": true, "YE": true, "ZM": true, "ZW": true, "XK": true,
 }
 
 var iso3166_1_alpha3 = map[string]bool{
@@ -105,7 +105,7 @@ var iso3166_1_alpha3 = map[string]bool{
 	"UGA": true, "UKR": true, "ARE": true, "GBR": true, "UMI": true,
 	"USA": true, "URY": true, "UZB": true, "VUT": true, "VEN": true,
 	"VNM": true, "VGB": true, "VIR": true, "WLF": true, "ESH": true,
-	"YEM": true, "ZMB": true, "ZWE": true, "ALA": true,
+	"YEM": true, "ZMB": true, "ZWE": true, "ALA": true, "UNK": true,
 }
 var iso3166_1_alpha_numeric = map[int]bool{
 	// see: https://www.iso.org/iso-3166-country-codes.html
@@ -158,7 +158,7 @@ var iso3166_1_alpha_numeric = map[int]bool{
 	800: true, 804: true, 784: true, 826: true, 581: true,
 	840: true, 858: true, 860: true, 548: true, 862: true,
 	704: true, 92: true, 850: true, 876: true, 732: true,
-	887: true, 894: true, 716: true, 248: true,
+	887: true, 894: true, 716: true, 248: true, 153:true,
 }
 
 var iso3166_2 = map[string]bool{

errors.go

@@ -44,12 +44,9 @@ func (ve ValidationErrors) Error() string {
 
 	buff := bytes.NewBufferString("")
 
-	var fe *fieldError
-
 	for i := 0; i < len(ve); i++ {
 
-		fe = ve[i].(*fieldError)
-		buff.WriteString(fe.Error())
+		buff.WriteString(ve[i].Error())
 		buff.WriteString("\n")
 	}
 

go.mod

@@ -1,19 +1,14 @@
 module github.com/go-playground/validator/v10
 
-go 1.13
+go 1.18
 
 require (
-	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/go-playground/assert/v2 v2.0.1
-	github.com/go-playground/locales v0.14.0
-	github.com/go-playground/universal-translator v0.18.0
-	github.com/kr/pretty v0.3.0 // indirect
-	github.com/leodido/go-urn v1.2.1
-	github.com/rogpeppe/go-internal v1.8.0 // indirect
-	github.com/stretchr/testify v1.7.0 // indirect
-	golang.org/x/crypto v0.0.0-20211215153901-e495a2d5b3d3
-	golang.org/x/sys v0.0.0-20210806184541-e5e7981a1069 // indirect
-	golang.org/x/text v0.3.7
-	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
-	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
+	github.com/go-playground/assert/v2 v2.2.0
+	github.com/go-playground/locales v0.14.1
+	github.com/go-playground/universal-translator v0.18.1
+	github.com/leodido/go-urn v1.2.2
+	golang.org/x/crypto v0.7.0
+	golang.org/x/text v0.8.0
 )
+
+require golang.org/x/sys v0.6.0 // indirect

go.sum

@@ -1,52 +1,31 @@
-github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/go-playground/assert/v2 v2.0.1 h1:MsBgLAaY856+nPRTKrp3/OZK38U/wa0CcBYNjji3q3A=
-github.com/go-playground/assert/v2 v2.0.1/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
-github.com/go-playground/locales v0.14.0 h1:u50s323jtVGugKlcYeyzC0etD1HifMjqmJqb8WugfUU=
-github.com/go-playground/locales v0.14.0/go.mod h1:sawfccIbzZTqEDETgFXqTho0QybSa7l++s0DH+LDiLs=
-github.com/go-playground/universal-translator v0.18.0 h1:82dyy6p4OuJq4/CByFNOn/jYrnRPArHwAcmLoJZxyho=
-github.com/go-playground/universal-translator v0.18.0/go.mod h1:UvRDBj+xPUEGrFYl+lu/H90nyDXpg0fqeB/AQUGNTVA=
-github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
-github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
-github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
-github.com/kr/pretty v0.3.0/go.mod h1:640gp4NfQd8pI5XOwp5fnNeVWj67G7CFk/SaSQn7NBk=
-github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
-github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
-github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
-github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
-github.com/leodido/go-urn v1.2.1 h1:BqpAaACuzVSgi/VLzGZIobT2z4v53pjosyNd9Yv6n/w=
-github.com/leodido/go-urn v1.2.1/go.mod h1:zt4jvISO2HfUBqxjfIshjdMTYS56ZS/qv49ictyFfxY=
-github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=
+github.com/go-playground/assert/v2 v2.2.0 h1:JvknZsQTYeFEAhQwI4qEt9cyV5ONwRHC+lYKSsYSR8s=
+github.com/go-playground/assert/v2 v2.2.0/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
+github.com/go-playground/locales v0.14.1 h1:EWaQ/wswjilfKLTECiXz7Rh+3BjFhfDFKv/oXslEjJA=
+github.com/go-playground/locales v0.14.1/go.mod h1:hxrqLVvrK65+Rwrd5Fc6F2O76J/NuW9t0sjnWqG1slY=
+github.com/go-playground/universal-translator v0.18.1 h1:Bcnm0ZwsGyWbCzImXv+pAJnYK9S473LQFuzCbDbfSFY=
+github.com/go-playground/universal-translator v0.18.1/go.mod h1:xekY+UJKNuX9WP91TpwSH2VMlDf28Uj24BCp08ZFTUY=
+github.com/leodido/go-urn v1.2.2 h1:7z68G0FCGvDk646jz1AelTYNYWrTNm0bEcFAo147wt4=
+github.com/leodido/go-urn v1.2.2/go.mod h1:kUaIbLZWttglzwNuG0pgsh5vuV6u2YcGBYz1hIPjtOQ=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=
-github.com/rogpeppe/go-internal v1.8.0 h1:FCbCCtXNOY3UtUuHUYaghJg4y7Fd14rXifAYUAtL9R8=
-github.com/rogpeppe/go-internal v1.8.0/go.mod h1:WmiCO8CzOY8rg0OYDC4/i/2WRWAB6poM+XZ2dLUbcbE=
+github.com/rwtodd/Go.Sed v0.0.0-20210816025313-55464686f9ef/go.mod h1:8AEUvGVi2uQ5b24BIhcr0GCcpd/RNAFWaN2CJFrWIIQ=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
-github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-golang.org/x/crypto v0.0.0-20211215153901-e495a2d5b3d3 h1:0es+/5331RGQPcXlMfP+WrnIIS6dNnNRe0WB02W0F4M=
-golang.org/x/crypto v0.0.0-20211215153901-e495a2d5b3d3/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
-golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
-golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20210806184541-e5e7981a1069 h1:siQdpVirKtzPhKl3lZWozZraCFObP8S1v6PRp0bLrtU=
-golang.org/x/sys v0.0.0-20210806184541-e5e7981a1069/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
-golang.org/x/text v0.3.6 h1:aRYxNxv6iGQlyVaZmk6ZgYEDa+Jg18DxebPSrd6bg1M=
-golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
-golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
+github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
+github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
+github.com/stretchr/testify v1.8.2 h1:+h33VjcLVPDHtOdpUCuF+7gSuG3yGIftsP1YvFihtJ8=
+github.com/stretchr/testify v1.8.2/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
+golang.org/x/crypto v0.7.0 h1:AvwMYaRytfdeVt3u6mLaxYtErKYjxA2OXjJ1HHq6t3A=
+golang.org/x/crypto v0.7.0/go.mod h1:pYwdfH91IfpZVANVyUOhSIPZaFoJGxTFbZhFTx+dXZU=
+golang.org/x/sys v0.6.0 h1:MVltZSvRTcU2ljQOhs94SXPftV6DCNnZViHeQps87pQ=
+golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/text v0.8.0 h1:57P1ETyNKtuIjB4SRd15iJxuhj8Gc416Y78H3qgMh68=
+golang.org/x/text v0.8.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
-gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
-gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
-gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

non-standard/validators/notblank.go

@@ -14,7 +14,7 @@ func NotBlank(fl validator.FieldLevel) bool {
 
 	switch field.Kind() {
 	case reflect.String:
-		return len(strings.TrimSpace(field.String())) > 0
+		return len(strings.Trim(strings.TrimSpace(field.String()), "\x1c\x1d\x1e\x1f")) > 0
 	case reflect.Chan, reflect.Map, reflect.Slice, reflect.Array:
 		return field.Len() > 0
 	case reflect.Ptr, reflect.Interface, reflect.Func:

non-standard/validators/notblank_test.go

@@ -24,7 +24,7 @@ func TestNotBlank(t *testing.T) {
 	// Errors
 	var x *int
 	invalid := test{
-		String:    " ",
+		String:    " \x1c\x1d\x1e\x1f\r\n",
 		Array:     []int{},
 		Pointer:   x,
 		Number:    0,

regexes.go

@@ -19,6 +19,7 @@ const (
 	e164RegexString                  = "^\\+[1-9]?[0-9]{7,14}$"
 	base64RegexString                = "^(?:[A-Za-z0-9+\\/]{4})*(?:[A-Za-z0-9+\\/]{2}==|[A-Za-z0-9+\\/]{3}=|[A-Za-z0-9+\\/]{4})$"
 	base64URLRegexString             = "^(?:[A-Za-z0-9-_]{4})*(?:[A-Za-z0-9-_]{2}==|[A-Za-z0-9-_]{3}=|[A-Za-z0-9-_]{4})$"
+	base64RawURLRegexString          = "^(?:[A-Za-z0-9-_]{4})*(?:[A-Za-z0-9-_]{2,4})$"
 	iSBN10RegexString                = "^(?:[0-9]{9}X|[0-9]{10})$"
 	iSBN13RegexString                = "^(?:(?:97(?:8|9))[0-9]{10})$"
 	uUID3RegexString                 = "^[0-9a-f]{8}-[0-9a-f]{4}-3[0-9a-f]{3}-[0-9a-f]{4}-[0-9a-f]{12}$"
@@ -64,6 +65,9 @@ const (
 	bicRegexString                   = `^[A-Za-z]{6}[A-Za-z0-9]{2}([A-Za-z0-9]{3})?$`
 	semverRegexString                = `^(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(?:-((?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+([0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?$` // numbered capture groups https://semver.org/
 	dnsRegexStringRFC1035Label       = "^[a-z]([-a-z0-9]*[a-z0-9]){0,62}$"
+	cveRegexString                   = `^CVE-(1999|2\d{3})-(0[^0]\d{2}|0\d[^0]\d{1}|0\d{2}[^0]|[1-9]{1}\d{3,})$` // CVE Format Id https://cve.mitre.org/cve/identifiers/syntaxchange.html
+	mongodbRegexString               = "^[a-f\\d]{24}$"
+	cronRegexString                  = `(@(annually|yearly|monthly|weekly|daily|hourly|reboot))|(@every (\d+(ns|us|µs|ms|s|m|h))+)|((((\d+,)+\d+|(\d+(\/|-)\d+)|\d+|\*) ?){5,7})`
 )
 
 var (
@@ -83,6 +87,7 @@ var (
 	emailRegex                 = regexp.MustCompile(emailRegexString)
 	base64Regex                = regexp.MustCompile(base64RegexString)
 	base64URLRegex             = regexp.MustCompile(base64URLRegexString)
+	base64RawURLRegex          = regexp.MustCompile(base64RawURLRegexString)
 	iSBN10Regex                = regexp.MustCompile(iSBN10RegexString)
 	iSBN13Regex                = regexp.MustCompile(iSBN13RegexString)
 	uUID3Regex                 = regexp.MustCompile(uUID3RegexString)
@@ -118,8 +123,6 @@ var (
 	btcUpperAddressRegexBech32 = regexp.MustCompile(btcAddressUpperRegexStringBech32)
 	btcLowerAddressRegexBech32 = regexp.MustCompile(btcAddressLowerRegexStringBech32)
 	ethAddressRegex            = regexp.MustCompile(ethAddressRegexString)
-	ethAddressRegexUpper       = regexp.MustCompile(ethAddressUpperRegexString)
-	ethAddressRegexLower       = regexp.MustCompile(ethAddressLowerRegexString)
 	uRLEncodedRegex            = regexp.MustCompile(uRLEncodedRegexString)
 	hTMLEncodedRegex           = regexp.MustCompile(hTMLEncodedRegexString)
 	hTMLRegex                  = regexp.MustCompile(hTMLRegexString)
@@ -128,4 +131,7 @@ var (
 	bicRegex                   = regexp.MustCompile(bicRegexString)
 	semverRegex                = regexp.MustCompile(semverRegexString)
 	dnsRegexRFC1035Label       = regexp.MustCompile(dnsRegexStringRFC1035Label)
+	cveRegex                   = regexp.MustCompile(cveRegexString)
+	mongodbRegex               = regexp.MustCompile(mongodbRegexString)
+	cronRegex                  = regexp.MustCompile(cronRegexString)
 )

translations/en/en.go

@@ -1266,6 +1266,11 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0} must contain a valid MAC address",
 			override:    false,
 		},
+		{
+			tag:         "fqdn",
+			translation: "{0} must be a valid FQDN",
+			override:    false,
+		},
 		{
 			tag:         "unique",
 			translation: "{0} must contain unique values",
@@ -1276,6 +1281,11 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0} must be a valid color",
 			override:    false,
 		},
+		{
+			tag:         "cron",
+			translation: "{0} must be a valid cron expression",
+			override:    false,
+		},
 		{
 			tag:         "oneof",
 			translation: "{0} must be one of [{1}]",
@@ -1356,6 +1366,11 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0} must be a valid boolean value",
 			override:    false,
 		},
+		{
+			tag:         "cve",
+			translation: "{0} must be a valid cve identifier",
+			override:    false,
+		},
 	}
 
 	for _, t := range translations {

translations/en/en_test.go

@@ -130,6 +130,7 @@ func TestTranslations(t *testing.T) {
 		IPAddrv6          string            `validate:"ip6_addr"`
 		UinxAddr          string            `validate:"unix_addr"` // can't fail from within Go's net package currently, but maybe in the future
 		MAC               string            `validate:"mac"`
+		FQDN              string            `validate:"fqdn"`
 		IsColor           string            `validate:"iscolor"`
 		StrPtrMinLen      *string           `validate:"min=10"`
 		StrPtrMaxLen      *string           `validate:"max=1"`
@@ -152,6 +153,7 @@ func TestTranslations(t *testing.T) {
 		PostCodeCountry   string
 		PostCodeByField   string `validate:"postcode_iso3166_alpha2_field=PostCodeCountry"`
 		BooleanString     string `validate:"boolean"`
+		CveString         string `validate:"cve"`
 	}
 
 	var test Test
@@ -205,6 +207,7 @@ func TestTranslations(t *testing.T) {
 	test.UniqueMap = map[string]string{"key1": "1234", "key2": "1234"}
 	test.Datetime = "2008-Feb-01"
 	test.BooleanString = "A"
+	test.CveString = "A"
 
 	test.Inner.RequiredIf = "abcd"
 
@@ -226,6 +229,10 @@ func TestTranslations(t *testing.T) {
 			ns:       "Test.MAC",
 			expected: "MAC must contain a valid MAC address",
 		},
+		{
+			ns:       "Test.FQDN",
+			expected: "FQDN must be a valid FQDN",
+		},
 		{
 			ns:       "Test.IPAddr",
 			expected: "IPAddr must be a resolvable IP address",
@@ -690,6 +697,10 @@ func TestTranslations(t *testing.T) {
 			ns:       "Test.BooleanString",
 			expected: "BooleanString must be a valid boolean value",
 		},
+		{
+			ns:       "Test.CveString",
+			expected: "CveString must be a valid cve identifier",
+		},
 	}
 
 	for _, tt := range tests {

translations/es/es.go

@@ -29,6 +29,11 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0} es un campo requerido",
 			override:    false,
 		},
+		{
+			tag:         "required_if",
+			translation: "{0} es un campo requerido",
+			override:    false,
+		},
 		{
 			tag: "len",
 			customRegisFunc: func(ut ut.Translator) (err error) {

translations/es/es_test.go

@@ -35,6 +35,7 @@ func TestTranslations(t *testing.T) {
 		RequiredString    string            `validate:"required"`
 		RequiredNumber    int               `validate:"required"`
 		RequiredMultiple  []string          `validate:"required"`
+		RequiredIf        string            `validate:"required_if=Inner.RequiredIf abcd"`
 		LenString         string            `validate:"len=1"`
 		LenNumber         float64           `validate:"len=1113.00"`
 		LenMultiple       []string          `validate:"len=7"`

translations/it/it.go

@@ -1132,6 +1132,11 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0} deve essere un colore valido",
 			override:    false,
 		},
+		{
+			tag:         "cron",
+			translation: "{0} deve essere una stringa cron valida",
+			override:    false,
+		},
 		{
 			tag:             "oneof",
 			translation:     "{0} deve essere uno di [{1}]",

translations/ja/ja.go

@@ -16,7 +16,6 @@ import (
 // RegisterDefaultTranslations registers a set of default translations
 // for all built in tag's in validator; you may add your own as desired.
 func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (err error) {
-
 	translations := []struct {
 		tag             string
 		translation     string
@@ -29,10 +28,14 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0}は必須フィールドです",
 			override:    false,
 		},
+		{
+			tag:         "required_if",
+			translation: "{0}は必須フィールドです",
+			override:    false,
+		},
 		{
 			tag: "len",
 			customRegisFunc: func(ut ut.Translator) (err error) {
-
 				if err = ut.Add("len-string", "{0}の長さは{1}でなければなりません", false); err != nil {
 					return
 				}
@@ -64,7 +67,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 
 			},
 			customTransFunc: func(ut ut.Translator, fe validator.FieldError) string {
-
 				var err error
 				var t string
 
@@ -123,7 +125,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 		{
 			tag: "min",
 			customRegisFunc: func(ut ut.Translator) (err error) {
-
 				if err = ut.Add("min-string", "{0}の長さは少なくとも{1}はなければなりません", false); err != nil {
 					return
 				}
@@ -136,7 +137,7 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 					return
 				}
 
-				if err = ut.Add("min-number", "{0}は{1}より大きくなければなりません", false); err != nil {
+				if err = ut.Add("min-number", "{0}は{1}以上でなければなりません", false); err != nil {
 					return
 				}
 
@@ -155,7 +156,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 
 			},
 			customTransFunc: func(ut ut.Translator, fe validator.FieldError) string {
-
 				var err error
 				var t string
 
@@ -214,7 +214,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 		{
 			tag: "max",
 			customRegisFunc: func(ut ut.Translator) (err error) {
-
 				if err = ut.Add("max-string", "{0}の長さは最大でも{1}でなければなりません", false); err != nil {
 					return
 				}
@@ -227,7 +226,7 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 					return
 				}
 
-				if err = ut.Add("max-number", "{0}は{1}より小さくなければなりません", false); err != nil {
+				if err = ut.Add("max-number", "{0}は{1}以下でなければなりません", false); err != nil {
 					return
 				}
 
@@ -307,7 +306,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0}は{1}と等しくありません",
 			override:    false,
 			customTransFunc: func(ut ut.Translator, fe validator.FieldError) string {
-
 				t, err := ut.T(fe.Tag(), fe.Field(), fe.Param())
 				if err != nil {
 					fmt.Printf("warning: error translating FieldError: %#v", fe)
@@ -391,7 +389,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 		{
 			tag: "lt",
 			customRegisFunc: func(ut ut.Translator) (err error) {
-
 				if err = ut.Add("lt-string", "{0}の長さは{1}よりも少なくなければなりません", false); err != nil {
 					return
 				}
@@ -512,7 +509,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 		{
 			tag: "lte",
 			customRegisFunc: func(ut ut.Translator) (err error) {
-
 				if err = ut.Add("lte-string", "{0}の長さは最大でも{1}でなければなりません", false); err != nil {
 					return
 				}
@@ -525,7 +521,7 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 					return
 				}
 
-				if err = ut.Add("lte-number", "{0}は{1}より小さくなければなりません", false); err != nil {
+				if err = ut.Add("lte-number", "{0}は{1}以下でなければなりません", false); err != nil {
 					return
 				}
 
@@ -632,7 +628,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 		{
 			tag: "gt",
 			customRegisFunc: func(ut ut.Translator) (err error) {
-
 				if err = ut.Add("gt-string", "{0}の長さは{1}よりも多くなければなりません", false); err != nil {
 					return
 				}
@@ -752,7 +747,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 		{
 			tag: "gte",
 			customRegisFunc: func(ut ut.Translator) (err error) {
-
 				if err = ut.Add("gte-string", "{0}の長さは少なくとも{1}以上はなければなりません", false); err != nil {
 					return
 				}
@@ -765,7 +759,7 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 					return
 				}
 
-				if err = ut.Add("gte-number", "{0}は{1}より大きくなければなりません", false); err != nil {
+				if err = ut.Add("gte-number", "{0}は{1}以上でなければなりません", false); err != nil {
 					return
 				}
 
@@ -874,7 +868,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0}は{1}と等しくなければなりません",
 			override:    false,
 			customTransFunc: func(ut ut.Translator, fe validator.FieldError) string {
-
 				t, err := ut.T(fe.Tag(), fe.Field(), fe.Param())
 				if err != nil {
 					log.Printf("warning: error translating FieldError: %#v", fe)
@@ -889,7 +882,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0}は{1}と等しくなければなりません",
 			override:    false,
 			customTransFunc: func(ut ut.Translator, fe validator.FieldError) string {
-
 				t, err := ut.T(fe.Tag(), fe.Field(), fe.Param())
 				if err != nil {
 					log.Printf("warning: error translating FieldError: %#v", fe)
@@ -904,7 +896,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0}は{1}とは異ならなければなりません",
 			override:    false,
 			customTransFunc: func(ut ut.Translator, fe validator.FieldError) string {
-
 				t, err := ut.T(fe.Tag(), fe.Field(), fe.Param())
 				if err != nil {
 					log.Printf("warning: error translating FieldError: %#v", fe)
@@ -919,7 +910,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0}は{1}よりも大きくなければなりません",
 			override:    false,
 			customTransFunc: func(ut ut.Translator, fe validator.FieldError) string {
-
 				t, err := ut.T(fe.Tag(), fe.Field(), fe.Param())
 				if err != nil {
 					log.Printf("warning: error translating FieldError: %#v", fe)
@@ -934,7 +924,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0}は{1}以上でなければなりません",
 			override:    false,
 			customTransFunc: func(ut ut.Translator, fe validator.FieldError) string {
-
 				t, err := ut.T(fe.Tag(), fe.Field(), fe.Param())
 				if err != nil {
 					log.Printf("warning: error translating FieldError: %#v", fe)
@@ -949,7 +938,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0}は{1}よりも小さくなければなりません",
 			override:    false,
 			customTransFunc: func(ut ut.Translator, fe validator.FieldError) string {
-
 				t, err := ut.T(fe.Tag(), fe.Field(), fe.Param())
 				if err != nil {
 					log.Printf("warning: error translating FieldError: %#v", fe)
@@ -964,7 +952,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0}は{1}以下でなければなりません",
 			override:    false,
 			customTransFunc: func(ut ut.Translator, fe validator.FieldError) string {
-
 				t, err := ut.T(fe.Tag(), fe.Field(), fe.Param())
 				if err != nil {
 					log.Printf("warning: error translating FieldError: %#v", fe)
@@ -979,7 +966,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0}は{1}とは異ならなければなりません",
 			override:    false,
 			customTransFunc: func(ut ut.Translator, fe validator.FieldError) string {
-
 				t, err := ut.T(fe.Tag(), fe.Field(), fe.Param())
 				if err != nil {
 					log.Printf("warning: error translating FieldError: %#v", fe)
@@ -994,7 +980,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0}は{1}よりも大きくなければなりません",
 			override:    false,
 			customTransFunc: func(ut ut.Translator, fe validator.FieldError) string {
-
 				t, err := ut.T(fe.Tag(), fe.Field(), fe.Param())
 				if err != nil {
 					log.Printf("warning: error translating FieldError: %#v", fe)
@@ -1009,7 +994,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0}は{1}以上でなければなりません",
 			override:    false,
 			customTransFunc: func(ut ut.Translator, fe validator.FieldError) string {
-
 				t, err := ut.T(fe.Tag(), fe.Field(), fe.Param())
 				if err != nil {
 					log.Printf("warning: error translating FieldError: %#v", fe)
@@ -1024,7 +1008,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0}は{1}よりも小さくなければなりません",
 			override:    false,
 			customTransFunc: func(ut ut.Translator, fe validator.FieldError) string {
-
 				t, err := ut.T(fe.Tag(), fe.Field(), fe.Param())
 				if err != nil {
 					log.Printf("warning: error translating FieldError: %#v", fe)
@@ -1039,7 +1022,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0}は{1}以下でなければなりません",
 			override:    false,
 			customTransFunc: func(ut ut.Translator, fe validator.FieldError) string {
-
 				t, err := ut.T(fe.Tag(), fe.Field(), fe.Param())
 				if err != nil {
 					log.Printf("warning: error translating FieldError: %#v", fe)
@@ -1124,7 +1106,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0}は'{1}'を含まなければなりません",
 			override:    false,
 			customTransFunc: func(ut ut.Translator, fe validator.FieldError) string {
-
 				t, err := ut.T(fe.Tag(), fe.Field(), fe.Param())
 				if err != nil {
 					log.Printf("warning: error translating FieldError: %#v", fe)
@@ -1139,7 +1120,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0}は'{1}'の少なくとも1つを含まなければなりません",
 			override:    false,
 			customTransFunc: func(ut ut.Translator, fe validator.FieldError) string {
-
 				t, err := ut.T(fe.Tag(), fe.Field(), fe.Param())
 				if err != nil {
 					log.Printf("warning: error translating FieldError: %#v", fe)
@@ -1154,7 +1134,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0}には'{1}'というテキストを含むことはできません",
 			override:    false,
 			customTransFunc: func(ut ut.Translator, fe validator.FieldError) string {
-
 				t, err := ut.T(fe.Tag(), fe.Field(), fe.Param())
 				if err != nil {
 					log.Printf("warning: error translating FieldError: %#v", fe)
@@ -1169,7 +1148,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0}には'{1}'のどれも含めることはできません",
 			override:    false,
 			customTransFunc: func(ut ut.Translator, fe validator.FieldError) string {
-
 				t, err := ut.T(fe.Tag(), fe.Field(), fe.Param())
 				if err != nil {
 					log.Printf("warning: error translating FieldError: %#v", fe)
@@ -1184,7 +1162,6 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0}には'{1}'を含めることはできません",
 			override:    false,
 			customTransFunc: func(ut ut.Translator, fe validator.FieldError) string {
-
 				t, err := ut.T(fe.Tag(), fe.Field(), fe.Param())
 				if err != nil {
 					log.Printf("warning: error translating FieldError: %#v", fe)
@@ -1354,6 +1331,11 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0}は正しいMACアドレスを含まなければなりません",
 			override:    false,
 		},
+		{
+			tag:         "unique",
+			translation: "{0}は一意な値のみを含まなければなりません",
+			override:    false,
+		},
 		{
 			tag:         "iscolor",
 			translation: "{0}は正しい色でなければなりません",
@@ -1372,22 +1354,83 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 				return s
 			},
 		},
+		{
+			tag:         "json",
+			translation: "{0}は正しいJSON文字列でなければなりません",
+			override:    false,
+		},
+		{
+			tag:         "jwt",
+			translation: "{0}は正しいJWT文字列でなければなりません",
+			override:    false,
+		},
+		{
+			tag:         "lowercase",
+			translation: "{0}は小文字でなければなりません",
+			override:    false,
+		},
+		{
+			tag:         "uppercase",
+			translation: "{0}は大文字でなければなりません",
+			override:    false,
+		},
+		{
+			tag:         "datetime",
+			translation: "{0}は{1}の書式と一致しません",
+			override:    false,
+			customTransFunc: func(ut ut.Translator, fe validator.FieldError) string {
+				t, err := ut.T(fe.Tag(), fe.Field(), fe.Param())
+				if err != nil {
+					log.Printf("warning: error translating FieldError: %#v", fe)
+					return fe.(error).Error()
+				}
+
+				return t
+			},
+		},
+		{
+			tag:         "postcode_iso3166_alpha2",
+			translation: "{0}は国名コード{1}の郵便番号形式と一致しません",
+			override:    false,
+			customTransFunc: func(ut ut.Translator, fe validator.FieldError) string {
+				t, err := ut.T(fe.Tag(), fe.Field(), fe.Param())
+				if err != nil {
+					log.Printf("warning: error translating FieldError: %#v", fe)
+					return fe.(error).Error()
+				}
+
+				return t
+			},
+		},
+		{
+			tag:         "postcode_iso3166_alpha2_field",
+			translation: "{0}は{1}フィールドで指定された国名コードの郵便番号形式と一致しません",
+			override:    false,
+			customTransFunc: func(ut ut.Translator, fe validator.FieldError) string {
+				t, err := ut.T(fe.Tag(), fe.Field(), fe.Param())
+				if err != nil {
+					log.Printf("warning: error translating FieldError: %#v", fe)
+					return fe.(error).Error()
+				}
+
+				return t
+			},
+		},
+		{
+			tag:         "boolean",
+			translation: "{0}は正しいブール値でなければなりません",
+			override:    false,
+		},
 	}
 
 	for _, t := range translations {
 
 		if t.customTransFunc != nil && t.customRegisFunc != nil {
-
 			err = v.RegisterTranslation(t.tag, trans, t.customRegisFunc, t.customTransFunc)
-
 		} else if t.customTransFunc != nil && t.customRegisFunc == nil {
-
 			err = v.RegisterTranslation(t.tag, trans, registrationFunc(t.tag, t.translation, t.override), t.customTransFunc)
-
 		} else if t.customTransFunc == nil && t.customRegisFunc != nil {
-
 			err = v.RegisterTranslation(t.tag, trans, t.customRegisFunc, translateFunc)
-
 		} else {
 			err = v.RegisterTranslation(t.tag, trans, registrationFunc(t.tag, t.translation, t.override), translateFunc)
 		}
@@ -1401,9 +1444,7 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 }
 
 func registrationFunc(tag string, translation string, override bool) validator.RegisterTranslationsFunc {
-
 	return func(ut ut.Translator) (err error) {
-
 		if err = ut.Add(tag, translation, override); err != nil {
 			return
 		}
@@ -1415,7 +1456,6 @@ func registrationFunc(tag string, translation string, override bool) validator.R
 }
 
 func translateFunc(ut ut.Translator, fe validator.FieldError) string {
-
 	t, err := ut.T(fe.Tag(), fe.Field())
 	if err != nil {
 		log.Printf("warning: error translating FieldError: %#v", fe)

translations/ja/ja_test.go

@@ -11,7 +11,6 @@ import (
 )
 
 func TestTranslations(t *testing.T) {
-
 	japanese := ja_locale.New()
 	uni := ut.New(japanese, japanese)
 	trans, _ := uni.GetTranslator("ja")
@@ -28,117 +27,131 @@ func TestTranslations(t *testing.T) {
 		GteCSFieldString string
 		LtCSFieldString  string
 		LteCSFieldString string
+		RequiredIf       string
 	}
 
 	type Test struct {
 		Inner             Inner
-		RequiredString    string    `validate:"required"`
-		RequiredNumber    int       `validate:"required"`
-		RequiredMultiple  []string  `validate:"required"`
-		LenString         string    `validate:"len=1"`
-		LenNumber         float64   `validate:"len=1113.00"`
-		LenMultiple       []string  `validate:"len=7"`
-		MinString         string    `validate:"min=1"`
-		MinNumber         float64   `validate:"min=1113.00"`
-		MinMultiple       []string  `validate:"min=7"`
-		MaxString         string    `validate:"max=3"`
-		MaxNumber         float64   `validate:"max=1113.00"`
-		MaxMultiple       []string  `validate:"max=7"`
-		EqString          string    `validate:"eq=3"`
-		EqNumber          float64   `validate:"eq=2.33"`
-		EqMultiple        []string  `validate:"eq=7"`
-		NeString          string    `validate:"ne="`
-		NeNumber          float64   `validate:"ne=0.00"`
-		NeMultiple        []string  `validate:"ne=0"`
-		LtString          string    `validate:"lt=3"`
-		LtNumber          float64   `validate:"lt=5.56"`
-		LtMultiple        []string  `validate:"lt=2"`
-		LtTime            time.Time `validate:"lt"`
-		LteString         string    `validate:"lte=3"`
-		LteNumber         float64   `validate:"lte=5.56"`
-		LteMultiple       []string  `validate:"lte=2"`
-		LteTime           time.Time `validate:"lte"`
-		GtString          string    `validate:"gt=3"`
-		GtNumber          float64   `validate:"gt=5.56"`
-		GtMultiple        []string  `validate:"gt=2"`
-		GtTime            time.Time `validate:"gt"`
-		GteString         string    `validate:"gte=3"`
-		GteNumber         float64   `validate:"gte=5.56"`
-		GteMultiple       []string  `validate:"gte=2"`
-		GteTime           time.Time `validate:"gte"`
-		EqFieldString     string    `validate:"eqfield=MaxString"`
-		EqCSFieldString   string    `validate:"eqcsfield=Inner.EqCSFieldString"`
-		NeCSFieldString   string    `validate:"necsfield=Inner.NeCSFieldString"`
-		GtCSFieldString   string    `validate:"gtcsfield=Inner.GtCSFieldString"`
-		GteCSFieldString  string    `validate:"gtecsfield=Inner.GteCSFieldString"`
-		LtCSFieldString   string    `validate:"ltcsfield=Inner.LtCSFieldString"`
-		LteCSFieldString  string    `validate:"ltecsfield=Inner.LteCSFieldString"`
-		NeFieldString     string    `validate:"nefield=EqFieldString"`
-		GtFieldString     string    `validate:"gtfield=MaxString"`
-		GteFieldString    string    `validate:"gtefield=MaxString"`
-		LtFieldString     string    `validate:"ltfield=MaxString"`
-		LteFieldString    string    `validate:"ltefield=MaxString"`
-		AlphaString       string    `validate:"alpha"`
-		AlphanumString    string    `validate:"alphanum"`
-		NumericString     string    `validate:"numeric"`
-		NumberString      string    `validate:"number"`
-		HexadecimalString string    `validate:"hexadecimal"`
-		HexColorString    string    `validate:"hexcolor"`
-		RGBColorString    string    `validate:"rgb"`
-		RGBAColorString   string    `validate:"rgba"`
-		HSLColorString    string    `validate:"hsl"`
-		HSLAColorString   string    `validate:"hsla"`
-		Email             string    `validate:"email"`
-		URL               string    `validate:"url"`
-		URI               string    `validate:"uri"`
-		Base64            string    `validate:"base64"`
-		Contains          string    `validate:"contains=purpose"`
-		ContainsAny       string    `validate:"containsany=!@#$"`
-		Excludes          string    `validate:"excludes=text"`
-		ExcludesAll       string    `validate:"excludesall=!@#$"`
-		ExcludesRune      string    `validate:"excludesrune=☻"`
-		ISBN              string    `validate:"isbn"`
-		ISBN10            string    `validate:"isbn10"`
-		ISBN13            string    `validate:"isbn13"`
-		UUID              string    `validate:"uuid"`
-		UUID3             string    `validate:"uuid3"`
-		UUID4             string    `validate:"uuid4"`
-		UUID5             string    `validate:"uuid5"`
-		ULID              string    `validate:"ulid"`
-		ASCII             string    `validate:"ascii"`
-		PrintableASCII    string    `validate:"printascii"`
-		MultiByte         string    `validate:"multibyte"`
-		DataURI           string    `validate:"datauri"`
-		Latitude          string    `validate:"latitude"`
-		Longitude         string    `validate:"longitude"`
-		SSN               string    `validate:"ssn"`
-		IP                string    `validate:"ip"`
-		IPv4              string    `validate:"ipv4"`
-		IPv6              string    `validate:"ipv6"`
-		CIDR              string    `validate:"cidr"`
-		CIDRv4            string    `validate:"cidrv4"`
-		CIDRv6            string    `validate:"cidrv6"`
-		TCPAddr           string    `validate:"tcp_addr"`
-		TCPAddrv4         string    `validate:"tcp4_addr"`
-		TCPAddrv6         string    `validate:"tcp6_addr"`
-		UDPAddr           string    `validate:"udp_addr"`
-		UDPAddrv4         string    `validate:"udp4_addr"`
-		UDPAddrv6         string    `validate:"udp6_addr"`
-		IPAddr            string    `validate:"ip_addr"`
-		IPAddrv4          string    `validate:"ip4_addr"`
-		IPAddrv6          string    `validate:"ip6_addr"`
-		UinxAddr          string    `validate:"unix_addr"` // can't fail from within Go's net package currently, but maybe in the future
-		MAC               string    `validate:"mac"`
-		IsColor           string    `validate:"iscolor"`
-		StrPtrMinLen      *string   `validate:"min=10"`
-		StrPtrMaxLen      *string   `validate:"max=1"`
-		StrPtrLen         *string   `validate:"len=2"`
-		StrPtrLt          *string   `validate:"lt=1"`
-		StrPtrLte         *string   `validate:"lte=1"`
-		StrPtrGt          *string   `validate:"gt=10"`
-		StrPtrGte         *string   `validate:"gte=10"`
-		OneOfString       string    `validate:"oneof=red green"`
-		OneOfInt          int       `validate:"oneof=5 63"`
+		RequiredString    string            `validate:"required"`
+		RequiredNumber    int               `validate:"required"`
+		RequiredMultiple  []string          `validate:"required"`
+		RequiredIf        string            `validate:"required_if=Inner.RequiredIf abcd"`
+		LenString         string            `validate:"len=1"`
+		LenNumber         float64           `validate:"len=1113.00"`
+		LenMultiple       []string          `validate:"len=7"`
+		MinString         string            `validate:"min=1"`
+		MinNumber         float64           `validate:"min=1113.00"`
+		MinMultiple       []string          `validate:"min=7"`
+		MaxString         string            `validate:"max=3"`
+		MaxNumber         float64           `validate:"max=1113.00"`
+		MaxMultiple       []string          `validate:"max=7"`
+		EqString          string            `validate:"eq=3"`
+		EqNumber          float64           `validate:"eq=2.33"`
+		EqMultiple        []string          `validate:"eq=7"`
+		NeString          string            `validate:"ne="`
+		NeNumber          float64           `validate:"ne=0.00"`
+		NeMultiple        []string          `validate:"ne=0"`
+		LtString          string            `validate:"lt=3"`
+		LtNumber          float64           `validate:"lt=5.56"`
+		LtMultiple        []string          `validate:"lt=2"`
+		LtTime            time.Time         `validate:"lt"`
+		LteString         string            `validate:"lte=3"`
+		LteNumber         float64           `validate:"lte=5.56"`
+		LteMultiple       []string          `validate:"lte=2"`
+		LteTime           time.Time         `validate:"lte"`
+		GtString          string            `validate:"gt=3"`
+		GtNumber          float64           `validate:"gt=5.56"`
+		GtMultiple        []string          `validate:"gt=2"`
+		GtTime            time.Time         `validate:"gt"`
+		GteString         string            `validate:"gte=3"`
+		GteNumber         float64           `validate:"gte=5.56"`
+		GteMultiple       []string          `validate:"gte=2"`
+		GteTime           time.Time         `validate:"gte"`
+		EqFieldString     string            `validate:"eqfield=MaxString"`
+		EqCSFieldString   string            `validate:"eqcsfield=Inner.EqCSFieldString"`
+		NeCSFieldString   string            `validate:"necsfield=Inner.NeCSFieldString"`
+		GtCSFieldString   string            `validate:"gtcsfield=Inner.GtCSFieldString"`
+		GteCSFieldString  string            `validate:"gtecsfield=Inner.GteCSFieldString"`
+		LtCSFieldString   string            `validate:"ltcsfield=Inner.LtCSFieldString"`
+		LteCSFieldString  string            `validate:"ltecsfield=Inner.LteCSFieldString"`
+		NeFieldString     string            `validate:"nefield=EqFieldString"`
+		GtFieldString     string            `validate:"gtfield=MaxString"`
+		GteFieldString    string            `validate:"gtefield=MaxString"`
+		LtFieldString     string            `validate:"ltfield=MaxString"`
+		LteFieldString    string            `validate:"ltefield=MaxString"`
+		AlphaString       string            `validate:"alpha"`
+		AlphanumString    string            `validate:"alphanum"`
+		NumericString     string            `validate:"numeric"`
+		NumberString      string            `validate:"number"`
+		HexadecimalString string            `validate:"hexadecimal"`
+		HexColorString    string            `validate:"hexcolor"`
+		RGBColorString    string            `validate:"rgb"`
+		RGBAColorString   string            `validate:"rgba"`
+		HSLColorString    string            `validate:"hsl"`
+		HSLAColorString   string            `validate:"hsla"`
+		Email             string            `validate:"email"`
+		URL               string            `validate:"url"`
+		URI               string            `validate:"uri"`
+		Base64            string            `validate:"base64"`
+		Contains          string            `validate:"contains=purpose"`
+		ContainsAny       string            `validate:"containsany=!@#$"`
+		Excludes          string            `validate:"excludes=text"`
+		ExcludesAll       string            `validate:"excludesall=!@#$"`
+		ExcludesRune      string            `validate:"excludesrune=☻"`
+		ISBN              string            `validate:"isbn"`
+		ISBN10            string            `validate:"isbn10"`
+		ISBN13            string            `validate:"isbn13"`
+		UUID              string            `validate:"uuid"`
+		UUID3             string            `validate:"uuid3"`
+		UUID4             string            `validate:"uuid4"`
+		UUID5             string            `validate:"uuid5"`
+		ULID              string            `validate:"ulid"`
+		ASCII             string            `validate:"ascii"`
+		PrintableASCII    string            `validate:"printascii"`
+		MultiByte         string            `validate:"multibyte"`
+		DataURI           string            `validate:"datauri"`
+		Latitude          string            `validate:"latitude"`
+		Longitude         string            `validate:"longitude"`
+		SSN               string            `validate:"ssn"`
+		IP                string            `validate:"ip"`
+		IPv4              string            `validate:"ipv4"`
+		IPv6              string            `validate:"ipv6"`
+		CIDR              string            `validate:"cidr"`
+		CIDRv4            string            `validate:"cidrv4"`
+		CIDRv6            string            `validate:"cidrv6"`
+		TCPAddr           string            `validate:"tcp_addr"`
+		TCPAddrv4         string            `validate:"tcp4_addr"`
+		TCPAddrv6         string            `validate:"tcp6_addr"`
+		UDPAddr           string            `validate:"udp_addr"`
+		UDPAddrv4         string            `validate:"udp4_addr"`
+		UDPAddrv6         string            `validate:"udp6_addr"`
+		IPAddr            string            `validate:"ip_addr"`
+		IPAddrv4          string            `validate:"ip4_addr"`
+		IPAddrv6          string            `validate:"ip6_addr"`
+		UinxAddr          string            `validate:"unix_addr"` // can't fail from within Go's net package currently, but maybe in the future
+		MAC               string            `validate:"mac"`
+		IsColor           string            `validate:"iscolor"`
+		StrPtrMinLen      *string           `validate:"min=10"`
+		StrPtrMaxLen      *string           `validate:"max=1"`
+		StrPtrLen         *string           `validate:"len=2"`
+		StrPtrLt          *string           `validate:"lt=1"`
+		StrPtrLte         *string           `validate:"lte=1"`
+		StrPtrGt          *string           `validate:"gt=10"`
+		StrPtrGte         *string           `validate:"gte=10"`
+		OneOfString       string            `validate:"oneof=red green"`
+		OneOfInt          int               `validate:"oneof=5 63"`
+		UniqueSlice       []string          `validate:"unique"`
+		UniqueArray       [3]string         `validate:"unique"`
+		UniqueMap         map[string]string `validate:"unique"`
+		JSONString        string            `validate:"json"`
+		JWTString         string            `validate:"jwt"`
+		LowercaseString   string            `validate:"lowercase"`
+		UppercaseString   string            `validate:"uppercase"`
+		Datetime          string            `validate:"datetime=2006-01-02"`
+		PostCode          string            `validate:"postcode_iso3166_alpha2=SG"`
+		PostCodeCountry   string
+		PostCodeByField   string `validate:"postcode_iso3166_alpha2_field=PostCodeCountry"`
+		BooleanString     string `validate:"boolean"`
 	}
 
 	var test Test
@@ -181,10 +194,20 @@ func TestTranslations(t *testing.T) {
 
 	test.MultiByte = "1234feerf"
 
+	test.LowercaseString = "ABCDEFG"
+	test.UppercaseString = "abcdefg"
+
 	s := "toolong"
 	test.StrPtrMaxLen = &s
 	test.StrPtrLen = &s
 
+	test.UniqueSlice = []string{"1234", "1234"}
+	test.UniqueMap = map[string]string{"key1": "1234", "key2": "1234"}
+	test.Datetime = "2008-Feb-01"
+	test.BooleanString = "A"
+
+	test.Inner.RequiredIf = "abcd"
+
 	err = validate.Struct(test)
 	NotEqual(t, err, nil)
 
@@ -453,7 +476,7 @@ func TestTranslations(t *testing.T) {
 		},
 		{
 			ns:       "Test.GteNumber",
-			expected: "GteNumberは5.56より大きくなければなりません",
+			expected: "GteNumberは5.56以上でなければなりません",
 		},
 		{
 			ns:       "Test.GteMultiple",
@@ -485,7 +508,7 @@ func TestTranslations(t *testing.T) {
 		},
 		{
 			ns:       "Test.LteNumber",
-			expected: "LteNumberは5.56より小さくなければなりません",
+			expected: "LteNumberは5.56以下でなければなりません",
 		},
 		{
 			ns:       "Test.LteMultiple",
@@ -541,7 +564,7 @@ func TestTranslations(t *testing.T) {
 		},
 		{
 			ns:       "Test.MaxNumber",
-			expected: "MaxNumberは1,113.00より小さくなければなりません",
+			expected: "MaxNumberは1,113.00以下でなければなりません",
 		},
 		{
 			ns:       "Test.MaxMultiple",
@@ -553,7 +576,7 @@ func TestTranslations(t *testing.T) {
 		},
 		{
 			ns:       "Test.MinNumber",
-			expected: "MinNumberは1,113.00より大きくなければなりません",
+			expected: "MinNumberは1,113.00以上でなければなりません",
 		},
 		{
 			ns:       "Test.MinMultiple",
@@ -575,6 +598,10 @@ func TestTranslations(t *testing.T) {
 			ns:       "Test.RequiredString",
 			expected: "RequiredStringは必須フィールドです",
 		},
+		{
+			ns:       "Test.RequiredIf",
+			expected: "RequiredIfは必須フィールドです",
+		},
 		{
 			ns:       "Test.RequiredNumber",
 			expected: "RequiredNumberは必須フィールドです",
@@ -619,6 +646,50 @@ func TestTranslations(t *testing.T) {
 			ns:       "Test.OneOfInt",
 			expected: "OneOfIntは[5 63]のうちのいずれかでなければなりません",
 		},
+		{
+			ns:       "Test.UniqueSlice",
+			expected: "UniqueSliceは一意な値のみを含まなければなりません",
+		},
+		{
+			ns:       "Test.UniqueArray",
+			expected: "UniqueArrayは一意な値のみを含まなければなりません",
+		},
+		{
+			ns:       "Test.UniqueMap",
+			expected: "UniqueMapは一意な値のみを含まなければなりません",
+		},
+		{
+			ns:       "Test.JSONString",
+			expected: "JSONStringは正しいJSON文字列でなければなりません",
+		},
+		{
+			ns:       "Test.JWTString",
+			expected: "JWTStringは正しいJWT文字列でなければなりません",
+		},
+		{
+			ns:       "Test.LowercaseString",
+			expected: "LowercaseStringは小文字でなければなりません",
+		},
+		{
+			ns:       "Test.UppercaseString",
+			expected: "UppercaseStringは大文字でなければなりません",
+		},
+		{
+			ns:       "Test.Datetime",
+			expected: "Datetimeは2006-01-02の書式と一致しません",
+		},
+		{
+			ns:       "Test.PostCode",
+			expected: "PostCodeは国名コードSGの郵便番号形式と一致しません",
+		},
+		{
+			ns:       "Test.PostCodeByField",
+			expected: "PostCodeByFieldはPostCodeCountryフィールドで指定された国名コードの郵便番号形式と一致しません",
+		},
+		{
+			ns:       "Test.BooleanString",
+			expected: "BooleanStringは正しいブール値でなければなりません",
+		},
 	}
 
 	for _, tt := range tests {

translations/lv/lv_test.go

@@ -0,0 +1,709 @@
+package lv
+
+import (
+	"testing"
+	"time"
+
+	. "github.com/go-playground/assert/v2"
+	english "github.com/go-playground/locales/en"
+	ut "github.com/go-playground/universal-translator"
+	"github.com/go-playground/validator/v10"
+)
+
+func TestTranslations(t *testing.T) {
+	eng := english.New()
+	uni := ut.New(eng, eng)
+	trans, _ := uni.GetTranslator("en")
+
+	validate := validator.New()
+
+	err := RegisterDefaultTranslations(validate, trans)
+	Equal(t, err, nil)
+
+	type Inner struct {
+		EqCSFieldString  string
+		NeCSFieldString  string
+		GtCSFieldString  string
+		GteCSFieldString string
+		LtCSFieldString  string
+		LteCSFieldString string
+		RequiredIf       string
+	}
+
+	type Test struct {
+		Inner             Inner
+		RequiredString    string            `validate:"required"`
+		RequiredNumber    int               `validate:"required"`
+		RequiredMultiple  []string          `validate:"required"`
+		RequiredIf        string            `validate:"required_if=Inner.RequiredIf abcd"`
+		LenString         string            `validate:"len=1"`
+		LenNumber         float64           `validate:"len=1113.00"`
+		LenMultiple       []string          `validate:"len=7"`
+		MinString         string            `validate:"min=1"`
+		MinNumber         float64           `validate:"min=1113.00"`
+		MinMultiple       []string          `validate:"min=7"`
+		MaxString         string            `validate:"max=3"`
+		MaxNumber         float64           `validate:"max=1113.00"`
+		MaxMultiple       []string          `validate:"max=7"`
+		EqString          string            `validate:"eq=3"`
+		EqNumber          float64           `validate:"eq=2.33"`
+		EqMultiple        []string          `validate:"eq=7"`
+		NeString          string            `validate:"ne="`
+		NeNumber          float64           `validate:"ne=0.00"`
+		NeMultiple        []string          `validate:"ne=0"`
+		LtString          string            `validate:"lt=3"`
+		LtNumber          float64           `validate:"lt=5.56"`
+		LtMultiple        []string          `validate:"lt=2"`
+		LtTime            time.Time         `validate:"lt"`
+		LteString         string            `validate:"lte=3"`
+		LteNumber         float64           `validate:"lte=5.56"`
+		LteMultiple       []string          `validate:"lte=2"`
+		LteTime           time.Time         `validate:"lte"`
+		GtString          string            `validate:"gt=3"`
+		GtNumber          float64           `validate:"gt=5.56"`
+		GtMultiple        []string          `validate:"gt=2"`
+		GtTime            time.Time         `validate:"gt"`
+		GteString         string            `validate:"gte=3"`
+		GteNumber         float64           `validate:"gte=5.56"`
+		GteMultiple       []string          `validate:"gte=2"`
+		GteTime           time.Time         `validate:"gte"`
+		EqFieldString     string            `validate:"eqfield=MaxString"`
+		EqCSFieldString   string            `validate:"eqcsfield=Inner.EqCSFieldString"`
+		NeCSFieldString   string            `validate:"necsfield=Inner.NeCSFieldString"`
+		GtCSFieldString   string            `validate:"gtcsfield=Inner.GtCSFieldString"`
+		GteCSFieldString  string            `validate:"gtecsfield=Inner.GteCSFieldString"`
+		LtCSFieldString   string            `validate:"ltcsfield=Inner.LtCSFieldString"`
+		LteCSFieldString  string            `validate:"ltecsfield=Inner.LteCSFieldString"`
+		NeFieldString     string            `validate:"nefield=EqFieldString"`
+		GtFieldString     string            `validate:"gtfield=MaxString"`
+		GteFieldString    string            `validate:"gtefield=MaxString"`
+		LtFieldString     string            `validate:"ltfield=MaxString"`
+		LteFieldString    string            `validate:"ltefield=MaxString"`
+		AlphaString       string            `validate:"alpha"`
+		AlphanumString    string            `validate:"alphanum"`
+		NumericString     string            `validate:"numeric"`
+		NumberString      string            `validate:"number"`
+		HexadecimalString string            `validate:"hexadecimal"`
+		HexColorString    string            `validate:"hexcolor"`
+		RGBColorString    string            `validate:"rgb"`
+		RGBAColorString   string            `validate:"rgba"`
+		HSLColorString    string            `validate:"hsl"`
+		HSLAColorString   string            `validate:"hsla"`
+		Email             string            `validate:"email"`
+		URL               string            `validate:"url"`
+		URI               string            `validate:"uri"`
+		Base64            string            `validate:"base64"`
+		Contains          string            `validate:"contains=purpose"`
+		ContainsAny       string            `validate:"containsany=!@#$"`
+		Excludes          string            `validate:"excludes=text"`
+		ExcludesAll       string            `validate:"excludesall=!@#$"`
+		ExcludesRune      string            `validate:"excludesrune=☻"`
+		ISBN              string            `validate:"isbn"`
+		ISBN10            string            `validate:"isbn10"`
+		ISBN13            string            `validate:"isbn13"`
+		UUID              string            `validate:"uuid"`
+		UUID3             string            `validate:"uuid3"`
+		UUID4             string            `validate:"uuid4"`
+		UUID5             string            `validate:"uuid5"`
+		ULID              string            `validate:"ulid"`
+		ASCII             string            `validate:"ascii"`
+		PrintableASCII    string            `validate:"printascii"`
+		MultiByte         string            `validate:"multibyte"`
+		DataURI           string            `validate:"datauri"`
+		Latitude          string            `validate:"latitude"`
+		Longitude         string            `validate:"longitude"`
+		SSN               string            `validate:"ssn"`
+		IP                string            `validate:"ip"`
+		IPv4              string            `validate:"ipv4"`
+		IPv6              string            `validate:"ipv6"`
+		CIDR              string            `validate:"cidr"`
+		CIDRv4            string            `validate:"cidrv4"`
+		CIDRv6            string            `validate:"cidrv6"`
+		TCPAddr           string            `validate:"tcp_addr"`
+		TCPAddrv4         string            `validate:"tcp4_addr"`
+		TCPAddrv6         string            `validate:"tcp6_addr"`
+		UDPAddr           string            `validate:"udp_addr"`
+		UDPAddrv4         string            `validate:"udp4_addr"`
+		UDPAddrv6         string            `validate:"udp6_addr"`
+		IPAddr            string            `validate:"ip_addr"`
+		IPAddrv4          string            `validate:"ip4_addr"`
+		IPAddrv6          string            `validate:"ip6_addr"`
+		UinxAddr          string            `validate:"unix_addr"` // can't fail from within Go's net package currently, but maybe in the future
+		MAC               string            `validate:"mac"`
+		IsColor           string            `validate:"iscolor"`
+		StrPtrMinLen      *string           `validate:"min=10"`
+		StrPtrMaxLen      *string           `validate:"max=1"`
+		StrPtrLen         *string           `validate:"len=2"`
+		StrPtrLt          *string           `validate:"lt=1"`
+		StrPtrLte         *string           `validate:"lte=1"`
+		StrPtrGt          *string           `validate:"gt=10"`
+		StrPtrGte         *string           `validate:"gte=10"`
+		OneOfString       string            `validate:"oneof=red green"`
+		OneOfInt          int               `validate:"oneof=5 63"`
+		UniqueSlice       []string          `validate:"unique"`
+		UniqueArray       [3]string         `validate:"unique"`
+		UniqueMap         map[string]string `validate:"unique"`
+		JSONString        string            `validate:"json"`
+		JWTString         string            `validate:"jwt"`
+		LowercaseString   string            `validate:"lowercase"`
+		UppercaseString   string            `validate:"uppercase"`
+		Datetime          string            `validate:"datetime=2006-01-02"`
+		PostCode          string            `validate:"postcode_iso3166_alpha2=SG"`
+		PostCodeCountry   string
+		PostCodeByField   string `validate:"postcode_iso3166_alpha2_field=PostCodeCountry"`
+		BooleanString     string `validate:"boolean"`
+	}
+
+	var test Test
+
+	test.Inner.EqCSFieldString = "1234"
+	test.Inner.GtCSFieldString = "1234"
+	test.Inner.GteCSFieldString = "1234"
+
+	test.MaxString = "1234"
+	test.MaxNumber = 2000
+	test.MaxMultiple = make([]string, 9)
+
+	test.LtString = "1234"
+	test.LtNumber = 6
+	test.LtMultiple = make([]string, 3)
+	test.LtTime = time.Now().Add(time.Hour * 24)
+
+	test.LteString = "1234"
+	test.LteNumber = 6
+	test.LteMultiple = make([]string, 3)
+	test.LteTime = time.Now().Add(time.Hour * 24)
+
+	test.LtFieldString = "12345"
+	test.LteFieldString = "12345"
+
+	test.LtCSFieldString = "1234"
+	test.LteCSFieldString = "1234"
+
+	test.AlphaString = "abc3"
+	test.AlphanumString = "abc3!"
+	test.NumericString = "12E.00"
+	test.NumberString = "12E"
+
+	test.Excludes = "this is some test text"
+	test.ExcludesAll = "This is Great!"
+	test.ExcludesRune = "Love it ☻"
+
+	test.ASCII = "ｶﾀｶﾅ"
+	test.PrintableASCII = "ｶﾀｶﾅ"
+
+	test.MultiByte = "1234feerf"
+
+	test.LowercaseString = "ABCDEFG"
+	test.UppercaseString = "abcdefg"
+
+	s := "toolong"
+	test.StrPtrMaxLen = &s
+	test.StrPtrLen = &s
+
+	test.UniqueSlice = []string{"1234", "1234"}
+	test.UniqueMap = map[string]string{"key1": "1234", "key2": "1234"}
+	test.Datetime = "2008-Feb-01"
+	test.BooleanString = "A"
+
+	test.Inner.RequiredIf = "abcd"
+
+	err = validate.Struct(test)
+	NotEqual(t, err, nil)
+
+	errs, ok := err.(validator.ValidationErrors)
+	Equal(t, ok, true)
+
+	tests := []struct {
+		ns       string
+		expected string
+	}{
+		{
+			ns:       "Test.IsColor",
+			expected: "IsColor jābūt derīgai krāsai",
+		},
+		{
+			ns:       "Test.MAC",
+			expected: "MAC jābūt derīgai MAC adresei",
+		},
+		{
+			ns:       "Test.IPAddr",
+			expected: "IPAddr jābūt atrisināmai IP adresei",
+		},
+		{
+			ns:       "Test.IPAddrv4",
+			expected: "IPAddrv4 jābūt atrisināmai IPv4 adresei",
+		},
+		{
+			ns:       "Test.IPAddrv6",
+			expected: "IPAddrv6 jābūt atrisināmai IPv6 adresei",
+		},
+		{
+			ns:       "Test.UDPAddr",
+			expected: "UDPAddr jābūt derīgai UDP adresei",
+		},
+		{
+			ns:       "Test.UDPAddrv4",
+			expected: "UDPAddrv4 jābūt derīgai IPv4 UDP adresei",
+		},
+		{
+			ns:       "Test.UDPAddrv6",
+			expected: "UDPAddrv6 jābūt derīgai IPv6 UDP adresei",
+		},
+		{
+			ns:       "Test.TCPAddr",
+			expected: "TCPAddr jābūt derīgai TCP adresei",
+		},
+		{
+			ns:       "Test.TCPAddrv4",
+			expected: "TCPAddrv4 jābūt derīgai IPv4 TCP adresei",
+		},
+		{
+			ns:       "Test.TCPAddrv6",
+			expected: "TCPAddrv6 jābūt derīgai IPv6 TCP adresei",
+		},
+		{
+			ns:       "Test.CIDR",
+			expected: "CIDR jāsatur derīgu CIDR notāciju",
+		},
+		{
+			ns:       "Test.CIDRv4",
+			expected: "CIDRv4 jāsatur derīgu CIDR notāciju IPv4 adresei",
+		},
+		{
+			ns:       "Test.CIDRv6",
+			expected: "CIDRv6 jāsatur derīgu CIDR notāciju IPv6 adresei",
+		},
+		{
+			ns:       "Test.SSN",
+			expected: "SSN jābūt derīgam SSN numuram",
+		},
+		{
+			ns:       "Test.IP",
+			expected: "IP jābūt derīgai IP adresei",
+		},
+		{
+			ns:       "Test.IPv4",
+			expected: "IPv4 jābūt derīgai IPv4 adresei",
+		},
+		{
+			ns:       "Test.IPv6",
+			expected: "IPv6 jābūt derīgai IPv6 adresei",
+		},
+		{
+			ns:       "Test.DataURI",
+			expected: "DataURI jāsatur derīgs Data URI",
+		},
+		{
+			ns:       "Test.Latitude",
+			expected: "Latitude jāsatur derīgus platuma grādus",
+		},
+		{
+			ns:       "Test.Longitude",
+			expected: "Longitude jāsatur derīgus garuma grādus",
+		},
+		{
+			ns:       "Test.MultiByte",
+			expected: "MultiByte jāsatur multibyte rakstu zīmes",
+		},
+		{
+			ns:       "Test.ASCII",
+			expected: "ASCII jāsatur tikai ascii rakstu zīmes",
+		},
+		{
+			ns:       "Test.PrintableASCII",
+			expected: "PrintableASCII jāsatur tikai drukājamas ascii rakstu zīmes",
+		},
+		{
+			ns:       "Test.UUID",
+			expected: "UUID jābūt derīgam UUID",
+		},
+		{
+			ns:       "Test.UUID3",
+			expected: "UUID3 jābūt derīgam 3. versijas UUID",
+		},
+		{
+			ns:       "Test.UUID4",
+			expected: "UUID4 jābūt derīgam 4. versijas UUID",
+		},
+		{
+			ns:       "Test.UUID5",
+			expected: "UUID5 jābūt derīgam 5. versijas UUID",
+		},
+		{
+			ns:       "Test.ULID",
+			expected: "ULID jābūt derīgam ULID",
+		},
+		{
+			ns:       "Test.ISBN",
+			expected: "ISBN jābūt derīgam ISBN numuram",
+		},
+		{
+			ns:       "Test.ISBN10",
+			expected: "ISBN10 jābūt derīgam ISBN-10 numuram",
+		},
+		{
+			ns:       "Test.ISBN13",
+			expected: "ISBN13 jābūt derīgam ISBN-13 numuram",
+		},
+		{
+			ns:       "Test.Excludes",
+			expected: "Excludes nedrīkst saturēt tekstu 'text'",
+		},
+		{
+			ns:       "Test.ExcludesAll",
+			expected: "ExcludesAll nedrīkst saturēt nevienu no sekojošām rakstu zīmēm '!@#$'",
+		},
+		{
+			ns:       "Test.ExcludesRune",
+			expected: "ExcludesRune nedrīkst saturēt sekojošo '☻'",
+		},
+		{
+			ns:       "Test.ContainsAny",
+			expected: "ContainsAny jāsatur minimums 1 no rakstu zīmēm '!@#$'",
+		},
+		{
+			ns:       "Test.Contains",
+			expected: "Contains jāsatur teksts 'purpose'",
+		},
+		{
+			ns:       "Test.Base64",
+			expected: "Base64 jābūt derīgai Base64 virknei",
+		},
+		{
+			ns:       "Test.Email",
+			expected: "Email jābūt derīgai e-pasta adresei",
+		},
+		{
+			ns:       "Test.URL",
+			expected: "URL jābūt derīgam URL",
+		},
+		{
+			ns:       "Test.URI",
+			expected: "URI jābūt derīgam URI",
+		},
+		{
+			ns:       "Test.RGBColorString",
+			expected: "RGBColorString jābūt derīgai RGB krāsai",
+		},
+		{
+			ns:       "Test.RGBAColorString",
+			expected: "RGBAColorString jābūt derīgai RGBA krāsai",
+		},
+		{
+			ns:       "Test.HSLColorString",
+			expected: "HSLColorString jābūt derīgai HSL krāsai",
+		},
+		{
+			ns:       "Test.HSLAColorString",
+			expected: "HSLAColorString jābūt derīgai HSLA krāsai",
+		},
+		{
+			ns:       "Test.HexadecimalString",
+			expected: "HexadecimalString jābūt heksadecimālam skaitlim",
+		},
+		{
+			ns:       "Test.HexColorString",
+			expected: "HexColorString jābūt derīgai HEX krāsai",
+		},
+		{
+			ns:       "Test.NumberString",
+			expected: "NumberString jāsatur derīgs skaitlis",
+		},
+		{
+			ns:       "Test.NumericString",
+			expected: "NumericString jāsatur tikai cipari",
+		},
+		{
+			ns:       "Test.AlphanumString",
+			expected: "AlphanumString jāsatur tikai simboli no alfabēta vai cipari (Alphanumeric)",
+		},
+		{
+			ns:       "Test.AlphaString",
+			expected: "AlphaString jāsatur tikai simboli no alfabēta",
+		},
+		{
+			ns:       "Test.LtFieldString",
+			expected: "LtFieldString jābūt mazākam par MaxString",
+		},
+		{
+			ns:       "Test.LteFieldString",
+			expected: "LteFieldString jābūt mazākam par MaxString vai vienādam",
+		},
+		{
+			ns:       "Test.GtFieldString",
+			expected: "GtFieldString jābūt lielākam par MaxString",
+		},
+		{
+			ns:       "Test.GteFieldString",
+			expected: "GteFieldString jābūt lielākam par MaxString vai vienādam",
+		},
+		{
+			ns:       "Test.NeFieldString",
+			expected: "NeFieldString nedrīkst būt vienāds ar EqFieldString",
+		},
+		{
+			ns:       "Test.LtCSFieldString",
+			expected: "LtCSFieldString jābūt mazākam par Inner.LtCSFieldString",
+		},
+		{
+			ns:       "Test.LteCSFieldString",
+			expected: "LteCSFieldString jābūt mazākam par Inner.LteCSFieldString vai vienādam",
+		},
+		{
+			ns:       "Test.GtCSFieldString",
+			expected: "GtCSFieldString jābūt lielākam par Inner.GtCSFieldString",
+		},
+		{
+			ns:       "Test.GteCSFieldString",
+			expected: "GteCSFieldString jābūt lielākam par Inner.GteCSFieldString vai vienādam",
+		},
+		{
+			ns:       "Test.NeCSFieldString",
+			expected: "NeCSFieldString nedrīkst būt vienāds ar Inner.NeCSFieldString",
+		},
+		{
+			ns:       "Test.EqCSFieldString",
+			expected: "EqCSFieldString jābūt vienādam ar Inner.EqCSFieldString",
+		},
+		{
+			ns:       "Test.EqFieldString",
+			expected: "EqFieldString jābūt vienādam ar MaxString",
+		},
+		{
+			ns:       "Test.GteString",
+			expected: "GteString garumam jābūt minimums 3 rakstu zīmes",
+		},
+		{
+			ns:       "Test.GteNumber",
+			expected: "GteNumber jābūt 5.56 vai lielākam",
+		},
+		{
+			ns:       "Test.GteMultiple",
+			expected: "GteMultiple jāsatur minimums 2 elementi",
+		},
+		{
+			ns:       "Test.GteTime",
+			expected: "GteTime jābūt lielākam par šī brīža Datumu un laiku vai vienādam",
+		},
+		{
+			ns:       "Test.GtString",
+			expected: "GtString ir jābūt garākam par 3 rakstu zīmēm",
+		},
+		{
+			ns:       "Test.GtNumber",
+			expected: "GtNumber jābūt lielākam par 5.56",
+		},
+		{
+			ns:       "Test.GtMultiple",
+			expected: "GtMultiple jāsatur vairāk par 2 elementiem",
+		},
+		{
+			ns:       "Test.GtTime",
+			expected: "GtTime jābūt lielākam par šī brīža Datumu un laiku",
+		},
+		{
+			ns:       "Test.LteString",
+			expected: "LteString garumam jābūt maksimums 3 rakstu zīmes",
+		},
+		{
+			ns:       "Test.LteNumber",
+			expected: "LteNumber jābūt 5.56 vai mazākam",
+		},
+		{
+			ns:       "Test.LteMultiple",
+			expected: "LteMultiple jāsatur maksimums 2 elementi",
+		},
+		{
+			ns:       "Test.LteTime",
+			expected: "LteTime jābūt mazākam par šī brīža Datumu un laiku vai vienādam",
+		},
+		{
+			ns:       "Test.LtString",
+			expected: "LtString garumam jābūt mazākam par 3 rakstu zīmēm",
+		},
+		{
+			ns:       "Test.LtNumber",
+			expected: "LtNumber jābūt mazākam par 5.56",
+		},
+		{
+			ns:       "Test.LtMultiple",
+			expected: "LtMultiple jāsatur mazāk par 2 elementiem",
+		},
+		{
+			ns:       "Test.LtTime",
+			expected: "LtTime jābūt mazākam par šī brīža Datumu un laiku",
+		},
+		{
+			ns:       "Test.NeString",
+			expected: "NeString nedrīkst būt vienāds ar ",
+		},
+		{
+			ns:       "Test.NeNumber",
+			expected: "NeNumber nedrīkst būt vienāds ar 0.00",
+		},
+		{
+			ns:       "Test.NeMultiple",
+			expected: "NeMultiple nedrīkst būt vienāds ar 0",
+		},
+		{
+			ns:       "Test.EqString",
+			expected: "EqString nav vienāds ar 3",
+		},
+		{
+			ns:       "Test.EqNumber",
+			expected: "EqNumber nav vienāds ar 2.33",
+		},
+		{
+			ns:       "Test.EqMultiple",
+			expected: "EqMultiple nav vienāds ar 7",
+		},
+		{
+			ns:       "Test.MaxString",
+			expected: "MaxString vērtība pārsniedz maksimālo garumu 3 rakstu zīmes",
+		},
+		{
+			ns:       "Test.MaxNumber",
+			expected: "MaxNumber vērtībai jābūt 1,113.00 vai mazākai",
+		},
+		{
+			ns:       "Test.MaxMultiple",
+			expected: "MaxMultiple jāsatur maksimums 7 elementi",
+		},
+		{
+			ns:       "Test.MinString",
+			expected: "MinString garumam jābūt minimums 1 rakstu zīme",
+		},
+		{
+			ns:       "Test.MinNumber",
+			expected: "MinNumber vērtībai jābūt 1,113.00 vai lielākai",
+		},
+		{
+			ns:       "Test.MinMultiple",
+			expected: "MinMultiple jāsatur minimums 7 elementi",
+		},
+		{
+			ns:       "Test.LenString",
+			expected: "LenString garumam jābūt 1 rakstu zīme",
+		},
+		{
+			ns:       "Test.LenNumber",
+			expected: "LenNumber vērtībai jābūt 1,113.00",
+		},
+		{
+			ns:       "Test.LenMultiple",
+			expected: "LenMultiple vērtībai jāsatur 7 elementi",
+		},
+		{
+			ns:       "Test.RequiredString",
+			expected: "RequiredString ir obligāts lauks",
+		},
+		{
+			ns:       "Test.RequiredIf",
+			expected: "RequiredIf ir obligāts lauks",
+		},
+		{
+			ns:       "Test.RequiredNumber",
+			expected: "RequiredNumber ir obligāts lauks",
+		},
+		{
+			ns:       "Test.RequiredMultiple",
+			expected: "RequiredMultiple ir obligāts lauks",
+		},
+		{
+			ns:       "Test.StrPtrMinLen",
+			expected: "StrPtrMinLen garumam jābūt minimums 10 rakstu zīmes",
+		},
+		{
+			ns:       "Test.StrPtrMaxLen",
+			expected: "StrPtrMaxLen vērtība pārsniedz maksimālo garumu 1 rakstu zīme",
+		},
+		{
+			ns:       "Test.StrPtrLen",
+			expected: "StrPtrLen garumam jābūt 2 rakstu zīmes",
+		},
+		{
+			ns:       "Test.StrPtrLt",
+			expected: "StrPtrLt garumam jābūt mazākam par 1 rakstu zīmi",
+		},
+		{
+			ns:       "Test.StrPtrLte",
+			expected: "StrPtrLte garumam jābūt maksimums 1 rakstu zīme",
+		},
+		{
+			ns:       "Test.StrPtrGt",
+			expected: "StrPtrGt ir jābūt garākam par 10 rakstu zīmēm",
+		},
+		{
+			ns:       "Test.StrPtrGte",
+			expected: "StrPtrGte garumam jābūt minimums 10 rakstu zīmes",
+		},
+		{
+			ns:       "Test.OneOfString",
+			expected: "OneOfString jābūt vienam no [red green]",
+		},
+		{
+			ns:       "Test.OneOfInt",
+			expected: "OneOfInt jābūt vienam no [5 63]",
+		},
+		{
+			ns:       "Test.UniqueSlice",
+			expected: "UniqueSlice jāsatur unikālas vērtības",
+		},
+		{
+			ns:       "Test.UniqueArray",
+			expected: "UniqueArray jāsatur unikālas vērtības",
+		},
+		{
+			ns:       "Test.UniqueMap",
+			expected: "UniqueMap jāsatur unikālas vērtības",
+		},
+		{
+			ns:       "Test.JSONString",
+			expected: "JSONString jābūt derīgai json virknei",
+		},
+		{
+			ns:       "Test.JWTString",
+			expected: "JWTString jābūt derīgai jwt virknei",
+		},
+		{
+			ns:       "Test.LowercaseString",
+			expected: "LowercaseString jābūt mazo burtu virknei",
+		},
+		{
+			ns:       "Test.UppercaseString",
+			expected: "UppercaseString jābūt lielo burtu virknei",
+		},
+		{
+			ns:       "Test.Datetime",
+			expected: "Datetime neatbilst formātam 2006-01-02",
+		},
+		{
+			ns:       "Test.PostCode",
+			expected: "PostCode neatbilst pasta indeksa formātam valstī SG",
+		},
+		{
+			ns:       "Test.PostCodeByField",
+			expected: "PostCodeByField neatbilst pasta indeksa formātam valstī, kura norādīta laukā PostCodeCountry",
+		},
+		{
+			ns:       "Test.BooleanString",
+			expected: "BooleanString jābūt derīgai boolean vērtībai",
+		},
+	}
+
+	for _, tt := range tests {
+
+		var fe validator.FieldError
+
+		for _, e := range errs {
+			if tt.ns == e.Namespace() {
+				fe = e
+				break
+			}
+		}
+
+		NotEqual(t, fe, nil)
+		Equal(t, tt.expected, fe.Translate(trans))
+	}
+}

translations/pt_BR/pt_BR.go

@@ -26,7 +26,7 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 	}{
 		{
 			tag:         "required",
-			translation: "{0} é um campo requerido",
+			translation: "{0} é um campo obrigatório",
 			override:    false,
 		},
 		{
@@ -1321,6 +1321,11 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 			translation: "{0} deve ser um valor booleano válido",
 			override:    false,
 		},
+		{
+			tag:         "cve",
+			translation: "{0} deve ser um identificador cve válido",
+			override:    false,
+		},
 	}
 
 	for _, t := range translations {

translations/pt_BR/pt_BR_test.go

@@ -140,6 +140,7 @@ func TestTranslations(t *testing.T) {
 		OneOfString       string    `validate:"oneof=red green"`
 		OneOfInt          int       `validate:"oneof=5 63"`
 		BooleanString     string    `validate:"boolean"`
+		CveString         string    `validate:"cve"`
 	}
 
 	var test Test
@@ -173,6 +174,7 @@ func TestTranslations(t *testing.T) {
 	test.NumericString = "12E.00"
 	test.NumberString = "12E"
 	test.BooleanString = "A"
+	test.CveString = "A"
 
 	test.Excludes = "este é um texto de teste"
 	test.ExcludesAll = "Isso é Ótimo!"
@@ -575,15 +577,15 @@ func TestTranslations(t *testing.T) {
 		},
 		{
 			ns:       "Test.RequiredString",
-			expected: "RequiredString é um campo requerido",
+			expected: "RequiredString é um campo obrigatório",
 		},
 		{
 			ns:       "Test.RequiredNumber",
-			expected: "RequiredNumber é um campo requerido",
+			expected: "RequiredNumber é um campo obrigatório",
 		},
 		{
 			ns:       "Test.RequiredMultiple",
-			expected: "RequiredMultiple é um campo requerido",
+			expected: "RequiredMultiple é um campo obrigatório",
 		},
 		{
 			ns:       "Test.StrPtrMinLen",
@@ -625,6 +627,10 @@ func TestTranslations(t *testing.T) {
 			ns:       "Test.BooleanString",
 			expected: "BooleanString deve ser um valor booleano válido",
 		},
+		{
+			ns:       "Test.CveString",
+			expected: "CveString deve ser um identificador cve válido",
+		},
 	}
 
 	for _, tt := range tests {

validator.go

@@ -452,7 +452,6 @@ OUTER:
 			v.ct = ct
 
 			if !ct.fn(ctx, v) {
-
 				v.str1 = string(append(ns, cf.altName...))
 
 				if v.v.hasTagNameFunc {

validator_instance.go

@@ -192,14 +192,14 @@ func (v *Validate) ValidateMap(data map[string]interface{}, rules map[string]int
 //
 // eg. to use the names which have been specified for JSON representations of structs, rather than normal Go field names:
 //
-//    validate.RegisterTagNameFunc(func(fld reflect.StructField) string {
-//        name := strings.SplitN(fld.Tag.Get("json"), ",", 2)[0]
-//        // skip if tag key says it should be ignored
-//        if name == "-" {
-//            return ""
-//        }
-//        return name
-//    })
+//	validate.RegisterTagNameFunc(func(fld reflect.StructField) string {
+//	    name := strings.SplitN(fld.Tag.Get("json"), ",", 2)[0]
+//	    // skip if tag key says it should be ignored
+//	    if name == "-" {
+//	        return ""
+//	    }
+//	    return name
+//	})
 func (v *Validate) RegisterTagNameFunc(fn TagNameFunc) {
 	v.tagNameFunc = fn
 	v.hasTagNameFunc = true
@@ -615,7 +615,7 @@ func (v *Validate) Var(field interface{}, tag string) error {
 }
 
 // VarCtx validates a single variable using tag style validation and allows passing of contextual
-// validation validation information via context.Context.
+// validation information via context.Context.
 // eg.
 // var i int
 // validate.Var(i, "gt=1,lt=10")
@@ -634,6 +634,7 @@ func (v *Validate) VarCtx(ctx context.Context, field interface{}, tag string) (e
 	}
 
 	ctag := v.fetchCacheTag(tag)
+
 	val := reflect.ValueOf(field)
 	vd := v.pool.Get().(*validate)
 	vd.top = val

validator_test.go

@@ -8,6 +8,7 @@ import (
 	"encoding/base64"
 	"encoding/json"
 	"fmt"
+	"os"
 	"path/filepath"
 	"reflect"
 	"strings"
@@ -2038,10 +2039,10 @@ func TestCrossNamespaceFieldValidation(t *testing.T) {
 	Equal(t, kind, reflect.String)
 	Equal(t, current.String(), "val2")
 
-	current, _, _, ok = v.getStructFieldOKInternal(val, "Inner.CrazyNonExistantField")
+	_, _, _, ok = v.getStructFieldOKInternal(val, "Inner.CrazyNonExistantField")
 	Equal(t, ok, false)
 
-	current, _, _, ok = v.getStructFieldOKInternal(val, "Inner.Slice[101]")
+	_, _, _, ok = v.getStructFieldOKInternal(val, "Inner.Slice[101]")
 	Equal(t, ok, false)
 
 	current, kind, _, ok = v.getStructFieldOKInternal(val, "Inner.Map[key3]")
@@ -3819,12 +3820,14 @@ func TestDataURIValidation(t *testing.T) {
 		{"data:image/png;base64,TG9yZW0gaXBzdW0gZG9sb3Igc2l0IGFtZXQsIGNvbnNlY3RldHVyIGFkaXBpc2NpbmcgZWxpdC4=", true},
 		{"data:text/plain;base64,Vml2YW11cyBmZXJtZW50dW0gc2VtcGVyIHBvcnRhLg==", true},
 		{"image/gif;base64,U3VzcGVuZGlzc2UgbGVjdHVzIGxlbw==", false},
-		{"data:image/gif;base64,MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuMPNS1Ufof9EW/M98FNw" +
-			"UAKrwflsqVxaxQjBQnHQmiI7Vac40t8x7pIb8gLGV6wL7sBTJiPovJ0V7y7oc0Ye" +
-			"rhKh0Rm4skP2z/jHwwZICgGzBvA0rH8xlhUiTvcwDCJ0kc+fh35hNt8srZQM4619" +
-			"FTgB66Xmp4EtVyhpQV+t02g6NzK72oZI0vnAvqhpkxLeLiMCyrI416wHm5Tkukhx" +
-			"QmcL2a6hNOyu0ixX/x2kSFXApEnVrJ+/IxGyfyw8kf4N2IZpW5nEP847lpfj0SZZ" +
-			"Fwrd1mnfnDbYohX2zRptLy2ZUn06Qo9pkG5ntvFEPo9bfZeULtjYzIl6K8gJ2uGZ" + "HQIDAQAB", true},
+		{
+			"data:image/gif;base64,MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuMPNS1Ufof9EW/M98FNw" +
+				"UAKrwflsqVxaxQjBQnHQmiI7Vac40t8x7pIb8gLGV6wL7sBTJiPovJ0V7y7oc0Ye" +
+				"rhKh0Rm4skP2z/jHwwZICgGzBvA0rH8xlhUiTvcwDCJ0kc+fh35hNt8srZQM4619" +
+				"FTgB66Xmp4EtVyhpQV+t02g6NzK72oZI0vnAvqhpkxLeLiMCyrI416wHm5Tkukhx" +
+				"QmcL2a6hNOyu0ixX/x2kSFXApEnVrJ+/IxGyfyw8kf4N2IZpW5nEP847lpfj0SZZ" +
+				"Fwrd1mnfnDbYohX2zRptLy2ZUn06Qo9pkG5ntvFEPo9bfZeULtjYzIl6K8gJ2uGZ" + "HQIDAQAB", true,
+		},
 		{"data:image/png;base64,12345", false},
 		{"", false},
 		{"data:text,:;base85,U3VzcGVuZGlzc2UgbGVjdHVzIGxlbw==", false},
@@ -5207,6 +5210,24 @@ func TestIsNeValidation(t *testing.T) {
 	Equal(t, errs, nil)
 }
 
+func TestIsNeIgnoreCaseValidation(t *testing.T) {
+	var errs error
+	validate := New()
+	s := "abcd"
+	now := time.Now()
+
+	errs = validate.Var(s, "ne_ignore_case=efgh")
+	Equal(t, errs, nil)
+
+	errs = validate.Var(s, "ne_ignore_case=AbCd")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "ne_ignore_case")
+
+	PanicMatches(
+		t, func() { _ = validate.Var(now, "ne_ignore_case=abcd") }, "Bad field type time.Time",
+	)
+}
+
 func TestIsEqFieldValidation(t *testing.T) {
 	var errs error
 	validate := New()
@@ -5484,6 +5505,23 @@ func TestIsEqValidation(t *testing.T) {
 	Equal(t, errs, nil)
 }
 
+func TestIsEqIgnoreCaseValidation(t *testing.T) {
+	var errs error
+	validate := New()
+	s := "abcd"
+	now := time.Now()
+
+	errs = validate.Var(s, "eq_ignore_case=abcd")
+	Equal(t, errs, nil)
+
+	errs = validate.Var(s, "eq_ignore_case=AbCd")
+	Equal(t, errs, nil)
+
+	PanicMatches(
+		t, func() { _ = validate.Var(now, "eq_ignore_case=abcd") }, "Bad field type time.Time",
+	)
+}
+
 func TestOneOfValidation(t *testing.T) {
 	validate := New()
 
@@ -5617,6 +5655,53 @@ func TestBase64URLValidation(t *testing.T) {
 	}
 }
 
+func TestBase64RawURLValidation(t *testing.T) {
+	validate := New()
+
+	testCases := []struct {
+		decoded, encoded string
+		success          bool
+	}{
+		// empty string, although a valid base64 string, should fail
+		{"", "", false},
+		// invalid length
+		{"", "a", false},
+		// base64 with padding should fail
+		{"f", "Zg==", false},
+		{"fo", "Zm8=", false},
+		// base64 without padding
+		{"foo", "Zm9v", true},
+		{"hello", "aGVsbG8", true},
+		{"", "aGVsb", false},
+		// // base64 URL safe encoding with invalid, special characters '+' and '/'
+		{"\x14\xfb\x9c\x03\xd9\x7e", "FPucA9l+", false},
+		{"\x14\xfb\x9c\x03\xf9\x73", "FPucA/lz", false},
+		// // base64 URL safe encoding with valid, special characters '-' and '_'
+		{"\x14\xfb\x9c\x03\xd9\x7e", "FPucA9l-", true},
+		{"\x14\xfb\x9c\x03\xf9\x73", "FPucA_lz", true},
+		// non base64 characters
+		{"", "@mc=", false},
+		{"", "Zm 9", false},
+	}
+	for _, tc := range testCases {
+		err := validate.Var(tc.encoded, "base64rawurl")
+		if tc.success {
+			Equal(t, err, nil)
+			// make sure encoded value is decoded back to the expected value
+			d, innerErr := base64.RawURLEncoding.DecodeString(tc.encoded)
+			Equal(t, innerErr, nil)
+			Equal(t, tc.decoded, string(d))
+		} else {
+			NotEqual(t, err, nil)
+			if len(tc.encoded) > 0 {
+				// make sure that indeed the encoded value was faulty
+				_, err := base64.RawURLEncoding.DecodeString(tc.encoded)
+				NotEqual(t, err, nil)
+			}
+		}
+	}
+}
+
 func TestFileValidation(t *testing.T) {
 	validate := New()
 
@@ -5650,6 +5735,39 @@ func TestFileValidation(t *testing.T) {
 	}, "Bad field type int")
 }
 
+func TestFilePathValidation(t *testing.T) {
+	validate := New()
+
+	tests := []struct {
+		title    string
+		param    string
+		expected bool
+	}{
+		{"empty filepath", "", false},
+		{"valid filepath", filepath.Join("testdata", "a.go"), true},
+		{"invalid filepath", filepath.Join("testdata", "no\000.go"), false},
+		{"directory, not a filepath", "testdata" + string(os.PathSeparator), false},
+	}
+
+	for _, test := range tests {
+		errs := validate.Var(test.param, "filepath")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Test: '%s' failed Error: %s", test.title, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Test: '%s' failed Error: %s", test.title, errs)
+			}
+		}
+	}
+
+	PanicMatches(t, func() {
+		_ = validate.Var(6, "filepath")
+	}, "Bad field type int")
+}
+
 func TestEthereumAddressValidation(t *testing.T) {
 	validate := New()
 
@@ -5672,7 +5790,7 @@ func TestEthereumAddressValidation(t *testing.T) {
 		{"0xfB6916095ca1df60bB79Ce92cE3Ea74c37c5d359", true},
 		{"0xdbF03B407c01E7cD3CBea99509d93f8DDDC8C6FB", true},
 		{"0xD1220A0cf47c7B9Be7A2E6BA89F429762e7b9aDb", true},
-		{"0xD1220A0cf47c7B9Be7A2E6BA89F429762e7b9aDB", false}, // Invalid checksum.
+		{"0xD1220A0cf47c7B9Be7A2E6BA89F429762e7b9aDB", true}, // Invalid checksum, but valid address.
 
 		// Other.
 		{"", false},
@@ -5703,6 +5821,56 @@ func TestEthereumAddressValidation(t *testing.T) {
 	}
 }
 
+func TestEthereumAddressChecksumValidation(t *testing.T) {
+	validate := New()
+
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		// All caps.
+		{"0x52908400098527886E0F7030069857D2E4169EE7", true},
+		{"0x8617E340B3D01FA5F11F306F4090FD50E238070D", true},
+
+		// All lower.
+		{"0x27b1fdb04752bbc536007a920d24acb045561c26", true},
+		{"0x123f681646d4a755815f9cb19e1acc8565a0c2ac", false},
+
+		// Mixed case: runs checksum validation.
+		{"0xD1220A0cf47c7B9Be7A2E6BA89F429762e7b9aDb", true},
+		{"0xD1220A0cf47c7B9Be7A2E6BA89F429762e7b9aDB", false}, // Invalid checksum.
+		{"0x000000000000000000000000000000000000dead", false}, // Invalid checksum.
+		{"0x000000000000000000000000000000000000dEaD", true},  // Valid checksum.
+
+		// Other.
+		{"", false},
+		{"D1220A0cf47c7B9Be7A2E6BA89F429762e7b9aDb", false},    // Missing "0x" prefix.
+		{"0xD1220A0cf47c7B9Be7A2E6BA89F429762e7b9aDbc", false}, // More than 40 hex digits.
+		{"0xD1220A0cf47c7B9Be7A2E6BA89F429762e7b9aD", false},   // Less than 40 hex digits.
+		{"0xD1220A0cf47c7B9Be7A2E6BA89F429762e7b9aDw", false},  // Invalid hex digit "w".
+	}
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "eth_addr_checksum")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d eth_addr_checksum failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d eth_addr_checksum failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "eth_addr_checksum" {
+					t.Fatalf("Index: %d Latitude failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
 func TestBitcoinAddressValidation(t *testing.T) {
 	validate := New()
 
@@ -7793,6 +7961,77 @@ func TestUrl(t *testing.T) {
 	PanicMatches(t, func() { _ = validate.Var(i, "url") }, "Bad field type int")
 }
 
+func TestHttpUrl(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"http://foo.bar#com", true},
+		{"http://foobar.com", true},
+		{"HTTP://foobar.com", true},
+		{"https://foobar.com", true},
+		{"foobar.com", false},
+		{"http://foobar.coffee/", true},
+		{"http://foobar.中文网/", true},
+		{"http://foobar.org/", true},
+		{"http://foobar.org:8080/", true},
+		{"ftp://foobar.ru/", false},
+		{"file:///etc/passwd", false},
+		{"file://C:/windows/win.ini", false},
+		{"http://user:pass@www.foobar.com/", true},
+		{"http://127.0.0.1/", true},
+		{"http://duckduckgo.com/?q=%2F", true},
+		{"http://localhost:3000/", true},
+		{"http://foobar.com/?foo=bar#baz=qux", true},
+		{"http://foobar.com?foo=bar", true},
+		{"http://www.xn--froschgrn-x9a.net/", true},
+		{"", false},
+		{"a://b", false},
+		{"xyz://foobar.com", false},
+		{"invalid.", false},
+		{".com", false},
+		{"rtmp://foobar.com", false},
+		{"http://www.foo_bar.com/", true},
+		{"http://localhost:3000/", true},
+		{"http://foobar.com/#baz", true},
+		{"http://foobar.com#baz=qux", true},
+		{"http://foobar.com/t$-_.+!*\\'(),", true},
+		{"http://www.foobar.com/~foobar", true},
+		{"http://www.-foobar.com/", true},
+		{"http://www.foo---bar.com/", true},
+		{"mailto:someone@example.com", false},
+		{"irc://irc.server.org/channel", false},
+		{"irc://#channel@network", false},
+		{"/abs/test/dir", false},
+		{"./rel/test/dir", false},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "http_url")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d HTTP URL failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d HTTP URL failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "http_url" {
+					t.Fatalf("Index: %d HTTP URL failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+
+	i := 1
+	PanicMatches(t, func() { _ = validate.Var(i, "http_url") }, "Bad field type int")
+}
+
 func TestUri(t *testing.T) {
 	tests := []struct {
 		param    string
@@ -8302,6 +8541,43 @@ func TestNumeric(t *testing.T) {
 	errs = validate.Var(i, "numeric")
 	Equal(t, errs, nil)
 }
+func TestBoolean(t *testing.T) {
+	validate := New()
+
+	b := true
+	errs := validate.Var(b, "boolean")
+	Equal(t, errs, nil)
+
+	b = false
+	errs = validate.Var(b, "boolean")
+	Equal(t, errs, nil)
+
+	s := "true"
+	errs = validate.Var(s, "boolean")
+	Equal(t, errs, nil)
+
+	s = "false"
+	errs = validate.Var(s, "boolean")
+	Equal(t, errs, nil)
+
+	s = "0"
+	errs = validate.Var(s, "boolean")
+	Equal(t, errs, nil)
+
+	s = "1"
+	errs = validate.Var(s, "boolean")
+	Equal(t, errs, nil)
+
+	s = "xyz"
+	errs = validate.Var(s, "boolean")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "boolean")
+
+	s = "1."
+	errs = validate.Var(s, "boolean")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "boolean")
+}
 
 func TestAlphaNumeric(t *testing.T) {
 	validate := New()
@@ -9768,6 +10044,12 @@ func TestUniqueValidation(t *testing.T) {
 		{map[string]string{"one": "a", "two": "a"}, false},
 		{map[string]interface{}{"one": "a", "two": "a"}, false},
 		{map[string]interface{}{"one": "a", "two": 1, "three": "b", "four": 1}, false},
+		{map[string]*string{"one": stringPtr("a"), "two": stringPtr("a")}, false},
+		{map[string]*string{"one": stringPtr("a"), "two": stringPtr("b")}, true},
+		{map[string]*int{"one": intPtr(1), "two": intPtr(1)}, false},
+		{map[string]*int{"one": intPtr(1), "two": intPtr(2)}, true},
+		{map[string]*float64{"one": float64Ptr(1.1), "two": float64Ptr(1.1)}, false},
+		{map[string]*float64{"one": float64Ptr(1.1), "two": float64Ptr(1.2)}, true},
 	}
 
 	validate := New()
@@ -9792,6 +10074,41 @@ func TestUniqueValidation(t *testing.T) {
 		}
 	}
 	PanicMatches(t, func() { _ = validate.Var(1.0, "unique") }, "Bad field type float64")
+
+	t.Run("struct", func(t *testing.T) {
+		tests := []struct {
+			param    interface{}
+			expected bool
+		}{
+			{struct {
+				A string `validate:"unique=B"`
+				B string
+			}{A: "abc", B: "bcd"}, true},
+			{struct {
+				A string `validate:"unique=B"`
+				B string
+			}{A: "abc", B: "abc"}, false},
+		}
+		validate := New()
+
+		for i, test := range tests {
+			errs := validate.Struct(test.param)
+			if test.expected {
+				if !IsEqual(errs, nil) {
+					t.Fatalf("Index: %d unique failed Error: %v", i, errs)
+				}
+			} else {
+				if IsEqual(errs, nil) {
+					t.Fatalf("Index: %d unique failed Error: %v", i, errs)
+				} else {
+					val := getError(errs, "A", "A")
+					if val.Tag() != "unique" {
+						t.Fatalf("Index: %d unique failed Error: %v", i, errs)
+					}
+				}
+			}
+		}
+	})
 }
 
 func TestUniqueValidationStructSlice(t *testing.T) {
@@ -9844,6 +10161,7 @@ func TestUniqueValidationStructPtrSlice(t *testing.T) {
 	}{
 		{A: stringPtr("one"), B: stringPtr("two")},
 		{A: stringPtr("one"), B: stringPtr("three")},
+		{},
 	}
 
 	tests := []struct {
@@ -10287,6 +10605,40 @@ func TestDirValidation(t *testing.T) {
 	}, "Bad field type int")
 }
 
+func TestDirPathValidation(t *testing.T) {
+	validate := New()
+
+	tests := []struct {
+		title    string
+		param    string
+		expected bool
+	}{
+		{"empty dirpath", "", false},
+		{"valid dirpath - exists", "testdata", true},
+		{"valid dirpath - explicit", "testdatanoexist" + string(os.PathSeparator), true},
+		{"invalid dirpath", "testdata\000" + string(os.PathSeparator), false},
+		{"file, not a dirpath", filepath.Join("testdata", "a.go"), false},
+	}
+
+	for _, test := range tests {
+		errs := validate.Var(test.param, "dirpath")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Test: '%s' failed Error: %s", test.title, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Test: '%s' failed Error: %s", test.title, errs)
+			}
+		}
+	}
+
+	PanicMatches(t, func() {
+		_ = validate.Var(6, "filepath")
+	}, "Bad field type int")
+}
+
 func TestStartsWithValidation(t *testing.T) {
 	tests := []struct {
 		Value       string `validate:"startswith=(/^ヮ^)/*:・ﾟ✧"`
@@ -11213,7 +11565,7 @@ func TestExcludedUnless(t *testing.T) {
 		FieldE  string `validate:"omitempty" json:"field_e"`
 		FieldER string `validate:"excluded_unless=FieldE test" json:"field_er"`
 	}{
-		FieldE:  "notest",
+		FieldE:  "test",
 		FieldER: "filled",
 	}
 	errs := validate.Struct(test)
@@ -11223,7 +11575,7 @@ func TestExcludedUnless(t *testing.T) {
 		FieldE  string `validate:"omitempty" json:"field_e"`
 		FieldER string `validate:"excluded_unless=FieldE test" json:"field_er"`
 	}{
-		FieldE:  "test",
+		FieldE:  "notest",
 		FieldER: "filled",
 	}
 	errs = validate.Struct(test2)
@@ -11232,7 +11584,26 @@ func TestExcludedUnless(t *testing.T) {
 	Equal(t, len(ve), 1)
 	AssertError(t, errs, "FieldER", "FieldER", "FieldER", "FieldER", "excluded_unless")
 
-	shouldError := "test"
+	// test5 and test6: excluded_unless has no effect if FieldER is left blank
+	test5 := struct {
+		FieldE  string `validate:"omitempty" json:"field_e"`
+		FieldER string `validate:"excluded_unless=FieldE test" json:"field_er"`
+	}{
+		FieldE: "test",
+	}
+	errs = validate.Struct(test5)
+	Equal(t, errs, nil)
+
+	test6 := struct {
+		FieldE  string `validate:"omitempty" json:"field_e"`
+		FieldER string `validate:"excluded_unless=FieldE test" json:"field_er"`
+	}{
+		FieldE: "notest",
+	}
+	errs = validate.Struct(test6)
+	Equal(t, errs, nil)
+
+	shouldError := "notest"
 	test3 := struct {
 		Inner  *Inner
 		Field1 string `validate:"excluded_unless=Inner.Field test" json:"field_1"`
@@ -11246,7 +11617,7 @@ func TestExcludedUnless(t *testing.T) {
 	Equal(t, len(ve), 1)
 	AssertError(t, errs, "Field1", "Field1", "Field1", "Field1", "excluded_unless")
 
-	shouldPass := "shouldPass"
+	shouldPass := "test"
 	test4 := struct {
 		Inner  *Inner
 		FieldE string `validate:"omitempty" json:"field_e"`
@@ -11258,6 +11629,26 @@ func TestExcludedUnless(t *testing.T) {
 	errs = validate.Struct(test4)
 	Equal(t, errs, nil)
 
+	// test7 and test8: excluded_unless has no effect if FieldER is left blank
+	test7 := struct {
+		Inner   *Inner
+		FieldE  string `validate:"omitempty" json:"field_e"`
+		FieldER string `validate:"excluded_unless=Inner.Field test" json:"field_er"`
+	}{
+		FieldE: "test",
+	}
+	errs = validate.Struct(test7)
+	Equal(t, errs, nil)
+
+	test8 := struct {
+		FieldE  string `validate:"omitempty" json:"field_e"`
+		FieldER string `validate:"excluded_unless=Inner.Field test" json:"field_er"`
+	}{
+		FieldE: "test",
+	}
+	errs = validate.Struct(test8)
+	Equal(t, errs, nil)
+
 	// Checks number of params in struct tag is correct
 	defer func() {
 		if r := recover(); r == nil {
@@ -12059,6 +12450,50 @@ func TestSemverFormatValidation(t *testing.T) {
 	}
 }
 
+func TestCveFormatValidation(t *testing.T) {
+
+	tests := []struct {
+		value    string `validate:"cve"`
+		tag      string
+		expected bool
+	}{
+		{"CVE-1999-0001", "cve", true},
+		{"CVE-1998-0001", "cve", false},
+		{"CVE-2000-0001", "cve", true},
+		{"CVE-2222-0001", "cve", true},
+		{"2222-0001", "cve", false},
+		{"-2222-0001", "cve", false},
+		{"CVE22220001", "cve", false},
+		{"CVE-2222-000001", "cve", false},
+		{"CVE-2222-100001", "cve", true},
+		{"CVE-2222-99999999999", "cve", true},
+		{"CVE-3000-0001", "cve", false},
+		{"CVE-1999-0000", "cve", false},
+		{"CVE-2099-0000", "cve", false},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+		errs := validate.Var(test.value, test.tag)
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d cve failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d cve failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "cve" {
+					t.Fatalf("Index: %d cve failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
 func TestRFC1035LabelFormatValidation(t *testing.T) {
 	tests := []struct {
 		value    string `validate:"dns_rfc1035_label"`
@@ -12116,10 +12551,12 @@ func TestPostCodeByIso3166Alpha2(t *testing.T) {
 			{"00803", true},
 			{"1234567", false},
 		},
-		"LC": { // not support regexp for post code
+		"LC": {
+			// not support regexp for post code
 			{"123456", false},
 		},
-		"XX": { // not support country
+		"XX": {
+			// not support country
 			{"123456", false},
 		},
 	}
@@ -12301,6 +12738,42 @@ func TestValidate_ValidateMapCtx(t *testing.T) {
 	}
 }
 
+func TestMongoDBObjectIDFormatValidation(t *testing.T) {
+	tests := []struct {
+		value    string `validate:"mongodb"`
+		tag      string
+		expected bool
+	}{
+		{"507f191e810c19729de860ea", "mongodb", true},
+		{"507f191e810c19729de860eG", "mongodb", false},
+		{"M07f191e810c19729de860eG", "mongodb", false},
+		{"07f191e810c19729de860ea", "mongodb", false},
+		{"507f191e810c19729de860e", "mongodb", false},
+		{"507f191e810c19729de860ea4", "mongodb", false},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+		errs := validate.Var(test.value, test.tag)
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d mongodb failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d mongodb failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "mongodb" {
+					t.Fatalf("Index: %d mongodb failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
 func TestCreditCardFormatValidation(t *testing.T) {
 	tests := []struct {
 		value    string `validate:"credit_card"`
@@ -12339,6 +12812,51 @@ func TestCreditCardFormatValidation(t *testing.T) {
 	}
 }
 
+func TestLuhnChecksumValidation(t *testing.T) {
+	testsUint := []struct {
+		value    interface{} `validate:"luhn_checksum"` // the type is interface{} because the luhn_checksum works on both strings and numbers
+		tag      string
+		expected bool
+	}{
+		{uint64(586824160825533338), "luhn_checksum", true}, // credit card numbers are just special cases of numbers with luhn checksum
+		{586824160825533338, "luhn_checksum", true},
+		{"586824160825533338", "luhn_checksum", true},
+		{uint64(586824160825533328), "luhn_checksum", false},
+		{586824160825533328, "luhn_checksum", false},
+		{"586824160825533328", "luhn_checksum", false},
+		{10000000116, "luhn_checksum", true}, // but there may be shorter numbers (11 digits)
+		{"10000000116", "luhn_checksum", true},
+		{10000000117, "luhn_checksum", false},
+		{"10000000117", "luhn_checksum", false},
+		{uint64(12345678123456789011), "luhn_checksum", true}, // or longer numbers (19 digits)
+		{"12345678123456789011", "luhn_checksum", true},
+		{1, "luhn_checksum", false}, // single digits (checksum only) are not allowed
+		{"1", "luhn_checksum", false},
+		{-10, "luhn_checksum", false}, // negative ints are not allowed
+		{"abcdefghijklmnop", "luhn_checksum", false},
+	}
+
+	validate := New()
+
+	for i, test := range testsUint {
+		errs := validate.Var(test.value, test.tag)
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d luhn_checksum failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d luhn_checksum failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "luhn_checksum" {
+					t.Fatalf("Index: %d luhn_checksum failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
 func TestMultiOrOperatorGroup(t *testing.T) {
 	tests := []struct {
 		Value    int `validate:"eq=1|gte=5,eq=1|lt=7"`
@@ -12362,3 +12880,37 @@ func TestMultiOrOperatorGroup(t *testing.T) {
 		}
 	}
 }
+
+func TestCronExpressionValidation(t *testing.T) {
+	tests := []struct {
+		value    string `validate:"cron"`
+		tag      string
+		expected bool
+	}{
+		{"0 0 12 * * ?", "cron", true},
+		{"0 15 10 ? * *", "cron", true},
+		{"0 15 10 * * ?", "cron", true},
+		{"0 15 10 * * ? 2005", "cron", true},
+		{"0 15 10 ? * 6L", "cron", true},
+		{"0 15 10 ? * 6L 2002-2005", "cron", true},
+		{"*/20 * * * *", "cron", true},
+		{"0 15 10 ? * MON-FRI", "cron", true},
+		{"0 15 10 ? * 6#3", "cron", true},
+		{"wrong", "cron", false},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+		errs := validate.Var(test.value, test.tag)
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf(`Index: %d cron "%s" failed Error: %s`, i, test.value, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf(`Index: %d cron "%s" should have errs`, i, test.value)
+			}
+		}
+	}
+}