NSDataDetector¶

@available(iOS 4.0, *)

Subclasse de NSRegularExpression
Detecta vários tipos de dados:
Datas, endereços, links, telefones...
Apresenta boa precisão

NSTextCheckingType.Link¶

let text = "Veja mais em: http://developer.apple.com/"

let detector = try NSDataDetector(types: NSTextCheckingType.Link.rawValue)

let match = detector.firstMatchInString(text, options: [], range: NSRange(location: 0, length: text.utf16.count))

print(match?.URL)
// Optional(http://developer.apple.com/)

NSTextCheckingType.Address¶

let text = "Av dos Andradas, Belo Horizonte, MG - 30260-070"

let detector = try NSDataDetector(types: NSTextCheckingType.Address.rawValue)

let match = detector.firstMatchInString(text, options: [], range: NSRange(location: 0, length: text.utf16.count))

print(match?.addressComponents)
// Optional(["ZIP": "30260-070", "City": "Belo Horizonte", "State": "MG", "Street": "Av dos Andradas"])

Chega de REGEXES malucas para validar email¶

let text = "[email protected]"

let detector = try NSDataDetector(types: NSTextCheckingType.Link.rawValue)

let match = detector.firstMatchInString(text, options: [], range: NSRange(location: 0, length: text.utf16.count))

print(match?.URL)
// Optional(mailto:[email protected])

Exemplo com extension¶

extension String     {

    func isEmail() -> Bool {

        guard let detector = NSDataDetector(types: NSTextCheckingType.Link.rawValue) else { return false }

        let match = detector.firstMatchInString(self, options: [], range: NSRange(location: 0, length: self.utf16.count))

        return match?.URL?.scheme == "mailto"
    }
}

Resultado¶

print("josé@email.com".isEmail())
// true

print("ашка@ящик.рф".isEmail())
// true

Last update: July 15, 2020