URL正则表达式-iOS

url_regex.swift

//: Playground - noun: a place where people can play

import UIKit

import UIKit

var regex = "(((http[s]{0,1}|ftp)://)?(([\\W\\.\\-]+\\.([a-zA-Z]{2,4}))|((::)?[0-255]\\.[0-255]\\.[0-255]\\.[0-255])|((([a-zA-Z0-9]{4})?:)?(([a-zA-Z0-9]{4})?:)?(([a-zA-Z0-9]{4})?:)?(([a-zA-Z0-9]{4})?:)?(([a-zA-Z0-9]{4})?:)?(([a-zA-Z0-9]{4})?:)?(([a-zA-Z0-9]{4})?:)?([a-zA-Z0-9]{4})?))(:\\d+)?(/[a-zA-Z0-9\\W\\.\\-~!@#$%^&*+?:_/=<>()]*)?)"

var available_urls = ["http://foo.com/blah_blah",
            "http://foo.com/blah_blah/",
            "http://foo.com/blah_blah_(wikipedia)",
            "http://foo.com/blah_blah_(wikipedia)_(again)",
            "http://www.example.com/wpstyle/?p=364",
            "https://www.example.com/foo/?bar=baz&inga=42&quux",
            "http://✪df.ws/123",
            "http://userid:[email protected]:8080",
            "http://userid:[email protected]:8080/",
            "http://[email protected]",
            "http://[email protected]/",
            "http://[email protected]:8080",
            "http://[email protected]:8080/",
            "http://userid:[email protected]",
            "http://userid:[email protected]/",
            "http://142.42.1.1/",
            "http://142.42.1.1:8080/",
            "http://➡.ws/䨹",
            "http://⌘.ws",
            "http://⌘.ws/",
            "http://foo.com/blah_(wikipedia)#cite-1",
            "http://foo.com/blah_(wikipedia)_blah#cite-1",
            "http://foo.com/unicode_(✪)_in_parens",
            "http://foo.com/(something)?after=parens",
            "http://☺.damowmow.com/",
            "http://code.google.com/events/#&product=browser",
            "http://j.mp",
            "ftp://foo.bar/baz",
            "http://foo.bar/?q=Test%20URL-encoded%20stuff",
            "http://مثال.إختبار",
            "http://朝阳.北京.中国/政务",
            "http://उदाहरण.परीक्षा",
            "http://-.~_!$&'()*+,;=:%40:80%2f::::::@example.com",
            "http://1337.net",
            "http://a.b-c.de",
            "http://223.255.255.254",
            "http://1030::C9B4:FF12:48AA:1A2B"]

var unavailable_urls = ["http://",
                      "http://.",
                      "http://..",
                      "http://../",
                      "http://?",
                      "http://??",
                      "http://??/",
                      "http://#",
                      "http://##",
                      "http://##/",
                      "http://foo.bar?q=Spaces should be encoded",
                      "//",
                      "//a",
                      "///a",
                      "/// 0",
                      "http:///a",
                      "foo.com",
                      "rdar://1234",
                      "h://test",
                      "http:// shouldfail.com",
                      ":// should fail",
                      "http://foo.bar/foo(bar)baz quux",
                      "ftps://foo.bar/",
                      "http://-error-.invalid/",
                      "http://a.b--c.de/",
                      "http://-a.b.co",
                      "http://a.b-.co",
                      "http://0.0.0.0",
                      "http://10.1.1.0",
                      "http://10.1.1.255",
                      "http://224.1.1.1",
                      "http://1.1.1.1.1",
                      "http://123.123.123",
                      "http://3628126748",
                      "http://3628126748",
                      "http://.www.foo.bar/",
                      "http://www.foo.bar./",
                      "http://10.1.1.1",
                      "http://10.1.1.254"]


var predicate = NSPredicate(format: "SELF MATCHES %@", regex)

print("---------------------------------------------- \n合法的URL：");
var availabel_urls_passed_num = 0;
for url in available_urls {
    if predicate.evaluate(with:url) {
        availabel_urls_passed_num+=1
        print("✅ \(url)")
    } else {
        print("❌ \(url)")
    }
}
print("合法的URL 通过率：\(100*availabel_urls_passed_num/available_urls.count)%% \n\n\n")

print("---------------------------------------------- \n不合法的URL：");
var unavailabel_urls_passed_num = 0;
for url in unavailable_urls {
    if predicate.evaluate(with:url) {
        print("❌ \(url)")
    } else {
        unavailabel_urls_passed_num+=1
        print("✅ \(url)")
    }
}
print("不合法的URL 通过率：\(100*unavailabel_urls_passed_num/unavailable_urls.count)%% \n")