package tyr

import (
	"encoding/hex"
	"unicode/utf8"
)

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

// CheckCharYesNo check Y or N
func CheckCharYesNo(s string) bool {
	if s == "Y" {
		return true
	}
	if s == "N" {
		return true
	}

	return false
}

// CheckStringLength 检测字符串是否符合指定长度范围
func CheckStringLength(s string, min, max int) bool {
	n := utf8.RuneCountInString(s)
	if n < min || n > max {
		return false
	}
	return true
}

// IsHexString 字符串是否 16 进制解码字符串
func IsHexString(s string) bool {
	if _, err := hex.DecodeString(s); err != nil {
		return false
	}
	return true
}