Function isHexString

sdk/go/parser/markdown.go:250–257

isHexString returns true if every character in s is a lowercase hex digit (0-9, a-f).

(s string)

// isHexString returns true if every character in s is a lowercase hex digit (0-9, a-f).
func isHexString(s string) bool {
	for _, c := range s {
		if (c < '0' || c > '9') && (c < 'a' || c > 'f') {
			return false
		}
	}
	return len(s) > 0
}

// isAlphanumericID returns true if s is 3-8 lowercase alphanumeric chars with at least one digit.
// This avoids false-positives on English words like "readme".