Simplified regex handler in swift

regex.swift

import Foundation

extension String {
    func regex(_ pattern: String) -> Bool {
        return self.range(of: pattern, options: .regularExpression) != nil
    }
}

let pattern = "http[s]?://[w]*.?booking.com.*aid=[0-9]+"

var str1 = "https://booking.com/hotel/gb/the-justin-james-ltd.html?aid=925669"
str1.regex(pattern)

var str2 = "https://www.booking.com/hotel/gb/the-justin-james-ltd.html?aid=925669"
str2.regex(pattern)

var str3 = "http://www.booking.com"
str3.regex(pattern)

var str4 = "http://booking.com"
str4.regex(pattern)

var str5 = "booking.com"
str5.regex(pattern)