avdwerff

extension Array where Element: Comparable {
    
    func mergeSort() -> [Element] {
        if count <= 1 { return self }
        else {
            let left = Array(self[0 ..< count/2])
            let right = Array(self[count/2 ..< count])
            return merge(left.mergeSort(), right: right.mergeSort())
        }
    }

avdwerff

protocol JSONInitable {
    init(data: JSON)
}

extension JSON {
    func to<T where T: JSONInitable>(type: T.Type) -> [T] {
        return self.arrayValue.map {
            return T(data: $0)
        }
    }

avdwerff

import UIKit

class ActivityIndicatorView: UIView {

    private lazy var gradientLayer: CAGradientLayer = {
        let gradient = CAGradientLayer()
        gradient.locations = [0.5, 1]
        gradient.startPoint = CGPointMake(0.0, 0.0)
        gradient.endPoint = CGPointMake(1.0, 0.8)

avdwerff

import Foundation

//https://en.wikipedia.org/wiki/XML
class ValidXMLProperties {
    
    static let shared = ValidXMLProperties()
    
    static let excludedElementNameCharactersPattern = "!|\"|#|\\$|%|&|\\'|\\(|\\)|\\*|\\+|,|/|;|\\<|=|\\>|\\?|\\@|\\[|\\\\|\\]|\\^|`|\\{|\\||\\}|~"
    
    static let excludedElementNameStartCharactersPattern = "-|\\.|[\\d]"