[OS - 🍎 macOS] macOS 유효한 URL 확인하기 (How to check validity of URL in Swift)

👓 NSPredicate

A definition of logical conditions used to constrain a search either for a fetch or for in-memory filtering.

---

📔 Check validity of URL Source Code by Swift

func checkValidWebURL(url: String) -> Bool {
     
     let urlRegEx = "^(https?://)?(www\\.)?([-a-z0-9]{1,63}\\.)*?[a-z0-9][-a-z0-9]{0,61}[a-z0-9]\\.[a-z]{2,6}(/[-\\w@\\+\\.~#\\?&/=%]*)?$"
     let urlTest = NSPredicate(format:"SELF MATCHES %@", urlRegEx)
     if urlTest.evaluate(with: url) {
         return true
     }
             
     let range = NSRange(location: 0, length: url.utf16.count)
     guard let detector = try? NSDataDetector(types: NSTextCheckingResult.CheckingType.link.rawValue),
         let match: NSTextCheckingResult = detector.firstMatch(in: url, options: [], range: range) else {
         return false
     }
     
     return match.range.length == url.utf16.count
 }

 

---

🚀 REFERENCE

How to check validity of URL in Swift?

ChangYeop-Yang/Study-macOS

Predicate Format String Syntax

[iOS/OSX] predicate를 사용한 배열의 필터 · Wireframe