45 lines
1.1 KiB
Go
45 lines
1.1 KiB
Go
package validate
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import (
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"regexp"
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"slices"
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"strings"
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"unicode/utf8"
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)
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// PermittedValue reports whether value appears in permittedValues.
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func PermittedValue[T comparable](value T, permittedValues ...T) bool {
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return slices.Contains(permittedValues, value)
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}
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// Matches reports whether value satisfies rx.
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func Matches(value string, rx *regexp.Regexp) bool {
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return rx.MatchString(value)
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}
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// Unique reports whether values contains no duplicate elements.
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func Unique[T comparable](values []T) bool {
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uniqueValues := make(map[T]bool)
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for _, value := range values {
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uniqueValues[value] = true
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}
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return len(values) == len(uniqueValues)
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}
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// NotBlank reports whether value contains non-whitespace characters.
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func NotBlank(value string) bool {
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return strings.TrimSpace(value) != ""
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}
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// MaxChars reports whether value contains at most n Unicode code points.
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func MaxChars(value string, n int) bool {
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return utf8.RuneCountInString(value) <= n
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}
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// MinChars reports whether value contains at least n Unicode code points.
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func MinChars(value string, n int) bool {
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return utf8.RuneCountInString(value) >= n
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}
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