andrevidela

prefix operator ¬

prefix func ¬ (op: Bool) -> Bool {
    return !op
}

andrevidela

//
//  NaiveTree.swift
//  immutable_nary_tree
//
//  Created by zephyz on 18.02.17.
//  Copyright © 2017 moe.zephyz. All rights reserved.
//

import Foundation

andrevidela

func parse(source: String) -> Person? {
    
    func startingIndex(`for` string: String, after offset: Int) -> String.Index {
        return string.index(string.startIndex, offsetBy: offset)
    }
    let lines = source.components(separatedBy: "\n")
    guard lines.count >= 4 else { return nil }
    var age: Int? = nil
    if lines[1].hasPrefix("age: ") {
        let start = startingIndex(for: lines[1], after: 5)

andrevidela

func parse(source: String) -> Person? {
    
    let lines = source.components(separatedBy: "\n")
    let age = matches(for: "(?<=age: )[0-9]+", in: lines[1]).flatMap({Int($0)})
    let name = matches(for: "(?<=name: )\\w+", in: lines[2])
    let city = matches(for: "(?<=city: )[\\w ]+", in: lines[3])
    
    if let a = age, let n = name, let c = city {
        return Person(name: n, age: a, city: c)
    } else {

andrevidela

struct Person {
    let name: String
    let age: Int
    let city: String
}