Function IsPositiveInteger

pkg/stringutil/stringutil.go:150–164

IsPositiveInteger checks if a string is a positive integer. Returns true for strings like "1", "123", "999" but false for: - Zero ("0") - Negative numbers ("-5") - Numbers with leading zeros ("007") - Floating point numbers ("3.14") - Non-numeric strings ("abc") - Empty strings ("")

(s string)

//   - Non-numeric strings ("abc")
//   - Empty strings ("")
func IsPositiveInteger(s string) bool {
	// Must not be empty
	if s == "" {
		return false
	}

	// Must not have leading zeros (except "0" itself, but that's not positive)
	if len(s) > 1 && s[0] == '0' {
		return false
	}

	// Must be numeric and > 0
	num, err := strconv.ParseInt(s, 10, 64)
	return err == nil && num > 0
}