29 lines
557 B
Go
29 lines
557 B
Go
package validators
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import (
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"regexp"
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validation "github.com/go-ozzo/ozzo-validation/v4"
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)
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// IsRegex checks whether the validated value is a valid regular expression pattern.
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//
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// Example:
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//
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// validation.Field(&form.Pattern, validation.By(validators.IsRegex))
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func IsRegex(value any) error {
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v, ok := value.(string)
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if !ok {
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return ErrUnsupportedValueType
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}
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if v == "" {
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return nil // nothing to check
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}
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if _, err := regexp.Compile(v); err != nil {
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return validation.NewError("validation_invalid_regex", err.Error())
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}
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return nil
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}
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