75 lines
1.7 KiB
Go
75 lines
1.7 KiB
Go
package validation
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// @license GNU AGPL version 3 or any later version
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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import (
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"reflect"
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"regexp"
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)
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type Regex struct {
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Message string
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TypeErrorMessage string
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Match bool
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Expression string
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}
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func NewRegex(expr string) Regex {
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return Regex{
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Message: "This value is not valid.",
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TypeErrorMessage: "This value can not be processed.",
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Match: true,
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Expression: expr,
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}
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}
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func (c Regex) MustMatch() Regex {
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c.Match = true
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return c
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}
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func (c Regex) MustNotMatch() Regex {
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c.Match = false
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return c
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}
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func (c Regex) Validate(data any) []Error {
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errors := []Error{}
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if len(NewNotBlank().Validate(data)) == 0 {
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t := reflect.TypeOf(data)
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if t.Kind() == reflect.Ptr {
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t = t.Elem()
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}
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switch t.Kind() {
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case reflect.String:
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matched, _ := regexp.MatchString(c.Expression, data.(string))
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if !matched && c.Match || matched && !c.Match {
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errors = append(errors, Error(c.Message))
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}
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default:
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errors = append(errors, Error(c.TypeErrorMessage))
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}
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}
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return errors
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}
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