util

var (
	IPRegex      = regexp.MustCompile(`\b(?:[0-9]{1,3}\.){3}[0-9]{1,3}\b`)
	RFC1918Regex = regexp.MustCompile(`^(10\.\d{1,3}\.\d{1,3}\.\d{1,3}|172\.(1[6-9]|2[0-9]|3[0-1])\.\d{1,3}\.\d{1,3}|192\.168\.\d{1,3}\.\d{1,3})$`)
	URLRegex     = regexp.MustCompile(`https?:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()!@:%_\+.~#?&\/\/=]*)`)
	EmailRegex   = regexp.MustCompile(`[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}`)
	DomainRegex  = regexp.MustCompile(`(?:(?:[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?\.)+(?:[a-zA-Z]{2,})|localhost)`)
	SHA256Regex  = regexp.MustCompile(`\b[a-fA-F0-9]{64}\b`)
)