Simplify regex with Swift

Regex.swift

import Foundation

infix operator =~ {}

func =~ (input: String, pattern: String) -> Bool {
    return Regex(pattern).test(input)
}

class Regex {
    let internalExpression: NSRegularExpression
    let pattern: String

    init(_ pattern: String) {
        self.pattern = pattern
        var error: NSError?
        self.internalExpression = NSRegularExpression(
        pattern: pattern,
                options: nil,//NSRegularExpression.CaseInsensitive
                error: &error
        )!
    }

    func test(input: String) -> Bool {
        let matches = self.internalExpression.matchesInString(
        input,
                options: nil,
                range:NSMakeRange(0, count(input))
        )
        return matches.count > 0
    }

    static func isValidEmail(candidate: String) -> Bool {
        let emailRegex = ".+@([A-Za-z0-9-]+\\.)+[A-Za-z]{2}[A-Za-z]*"
        return candidate =~ emailRegex
    }
    
    static func isValidPhone(candidate: String) -> Bool {
        let phoneRegex = "^(\\+)[0-9]{10,12}$"
        return candidate =~ phoneRegex
    }
}