Vends formatted address string for CLPlacemark or MKMapItem

Address.swift

struct Address {
  
  static let zipPlus4RegEx = NSRegularExpression(pattern: "\\-\\d{4}", options: nil, error: nil)!
  
  static func formattedAddressForPlacemark(placemark: CLPlacemark, includeName: Bool = true, withLineBreaks: Bool = true, showCountryIfUSA: Bool = false) -> String {
    var addressArray = [String]()
    var index = 0
    
    if placemark.name != nil && includeName { addressArray.append(placemark.name) }
    if placemark.subLocality != nil { addressArray.append(placemark.subLocality) } // Neighborhood
    
    let streetNumber = placemark.subThoroughfare != nil ? placemark.subThoroughfare + " " : ""
    let streetName = placemark.thoroughfare
    let streetAddress = "\(streetNumber)\(streetName)"
    if count(streetAddress) > 0 { addressArray.append(streetAddress) }
    
    let city = placemark.locality != nil ? placemark.locality : ""
    let state = placemark.administrativeArea != nil ? city != nil ? ", " + placemark.administrativeArea : placemark.administrativeArea : ""
    
    var postalCode = ""
    
    if let placemarkPostalCode = placemark.postalCode {
      let trimmedPostalCode = zipPlus4RegEx.stringByReplacingMatchesInString(placemarkPostalCode, options: nil, range: NSMakeRange(0, count(placemarkPostalCode)), withTemplate: "")
      postalCode = state != "" ? " " + trimmedPostalCode : trimmedPostalCode
    }
    
    let localityAdministrativeAreaPostalCode = "\(city)\(state)\(postalCode)"
    if count(localityAdministrativeAreaPostalCode) > 0 { addressArray.append(localityAdministrativeAreaPostalCode) }
    
    if showCountryIfUSA && placemark.country != nil { addressArray.append(placemark.country) }
    
    let orderedSet = NSOrderedSet(array: addressArray)
    
    let separator = withLineBreaks ? "\n" : ", "
    
    return separator.join(orderedSet.array as! [String])
  }
  
  static func formattedAddressForMapItem(mapItem: MKMapItem, includeName: Bool = true, withLineBreaks: Bool = true, showCountryIfUSA: Bool = false) -> String {
    let placemark = mapItem.placemark as CLPlacemark
    return formattedAddressForPlacemark(placemark, includeName: includeName, withLineBreaks: withLineBreaks, showCountryIfUSA: showCountryIfUSA)
  }
  
}