Make sure regex matches the entire string with Swift regex

Question

How to check whether a WHOLE string can be matches to regex? In Java is method String.matches(regex)

Answer 1

What you are looking for is range(of:options:range:locale:) then you can then compare the result of range(of:option:) with whole range of comparing string..

Example:

let phoneNumber = "(999) 555-1111"
let wholeRange = phoneNumber.startIndex..

Edit: You can also use NSPredicate and compare your string with evaluate(with:) method of its.

let pattern = "^\\(?\\d{3}\\)?\\s\\d{3}-\\d{4}$"
let predicate = NSPredicate(format: "self MATCHES [c] %@", pattern)
if predicate.evaluate(with: "(888) 555-1111") {
    print("Valid")
}
else {
    print("Invalid")
}