myth/util/string.go

package util

import "unicode/utf8"

// StrLen utf8 string length
func StrLen(s string) int {
	return utf8.RuneCountInString(s)
}

// StrMax verify string's max lenth
func StrMax(s string, max int) bool {
	n := utf8.RuneCountInString(s)
	if n <= max {
		return true
	}
	return false
}

// StrMin verify string's min lenth
func StrMin(s string, min int) bool {
	n := utf8.RuneCountInString(s)
	if n >= min {
		return true
	}
	return false
}

// StrRange verify string's Range lenth
func StrRange(s string, min, max int) bool {
	n := utf8.RuneCountInString(s)
	if n <= max && n >= min {
		return true
	}
	return false
}