Given a dictionary of words, return an array of the words whose match. (i.e. pattern "c.t" match with "cat", "cut", etc. because the dot notation stand for ANY character). Swift implementation.

gistfile1.swift

import UIKit

var words = ["Cat", "Cot", "Brazil", "Cut", "cat", "Apple", "Watch"]
var filter = [String]()

for word in words {
    if let match = word.rangeOfString("(C|c)(.*)t", options: .RegularExpressionSearch) {
        filter.append(word)
    }
}

println(filter)
//returns [Cat, Cot, Cut, cat]