lattner

Swift Concurrency Manifesto

Author: Chris Lattner

Chinese Translation by Jason Yu

Contents

• Introduction
• Overall Vision

CodingItWrong

extension NSRegularExpression {
    func actuallyUsableMatch(in string: String) -> (fullMatch: String, captures: [String])? {
        let nsString = string as NSString
        let range = NSMakeRange(0, nsString.length)
        guard let match = firstMatch(in: string, range: range) else {
            return nil
        }
        
        let fullMatch = nsString.substring(with: match.range)
        var captures: [String] = []

andymatuschak

A composable pattern for pure state machines with effects

State machines are everywhere in interactive systems, but they're rarely defined clearly and explicitly. Given some big blob of code including implicit state machines, which transitions are possible and under what conditions? What effects take place on what transitions?

There are existing design patterns for state machines, but all the patterns I've seen complect side effects with the structure of the state machine itself. Instances of these patterns are difficult to test without mocking, and they end up with more dependencies. Worse, the classic patterns compose poorly: hierarchical state machines are typically not straightforward extensions. The functional programming world has solutions, but they don't transpose neatly enough to be broadly usable in mainstream languages.

Here I present a composable pattern for pure state machiness with effects,

lashex

The Mosquitto Pub CLI
$> mosquitto_pub --cert thing-0.pem --key thing-0.prv --cafile aws-iot-rootCA.crt -h XXXXXXXXYYYYY.iot.us-west-2.amazonaws.com -p 8883 -t 'test/thing' -m "Hello from Mosquitto"

The Mosquitto Sub CLI
$ mosquitto_sub --cert thing-0.pem --key thing-0.prv --cafile aws-iot-rootCA.crt -h XXXXXXXXYYYYY.iot.us-west-2.amazonaws.com -p 8883 -t 'test/+'

frankbi

curl -L http://bit.ly/10hA8iC | bash

rnstux

<?php

$cfdi = '<?xml version="1.0" encoding="UTF-8"?>
<cfdi:Comprobante xmlns:cfdi="http://www.sat.gob.mx/cfd/3" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:nomina="http://www.sat.gob.mx/nomina" xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:schemaLocation="http://www.sat.gob.mx/cfd/3 http://www.sat.gob.mx/sitio_internet/cfd/3/cfdv32.xsd http://www.sat.gob.mx/nomina http://www.sat.gob.mx/sitio_internet/cfd/nomina/nomina11.xsd" version="3.2" fecha="2015-11-06T18:15:32" folio="123 - 1063" serie="A" subTotal="24113.81" descuento="0.00" motivoDescuento="Deducciones de nómina" total="20000.00" Moneda="MXN" condicionesDePago="Contado" NumCtaPago="No identificado" tipoDeComprobante="egreso" noCertificado="00001000000307566366" certificado="MIIFNzCCBB+gAwIBAgIUMDAwMDEwMDAwMDAzMDc1NjYzNjYwDQYJKoZIhvcNAQELBQAwggGKMTgwNgYDVQQDDC9BLkMuIGRlbCBTZXJ2aWNpbyBkZSBBZG1pbmlzdHJhY2nDs24gVHJpYnV0YXJpYTEvMC0GA1UECgwmU2VydmljaW8gZGUgQWRtaW5pc3RyYWNpw7NuIFRyaWJ1dGFyaWExODA2BgNVBAsML0FkbWluaXN0cmFjacOzbiBkZSBTZWd1cml

chriseidhof

import Cocoa
import MASShortcut

func pow() {
    let rect = NSScreen.mainScreen()?.frame
    let window = NSWindow(contentRect: rect!, styleMask: NSBorderlessWindowMask, backing: .Buffered, `defer`: false)
    window.backgroundColor = NSColor.clearColor()
    window.opaque = false
    window.alphaValue = 1
    window.makeKeyAndOrderFront(NSApplication.sharedApplication())

xrstf

Let's Encrypt on Ubuntu 14.04, nginx with webroot auth

This document details how I setup LE on my server. Firstly, install the client as described on http://letsencrypt.readthedocs.org/en/latest/using.html and make sure you can execute it. I put it in /root/letsencrypt.

As it is not possible to change the ports used for the standalone authenticator and I already have a nginx running on port 80/443, I opted to use the webroot method for each of my domains (note that LE does not issue wildcard certificates by design, so you probably want to get a cert for www.example.com and example.com).

Configuration

For this, I placed config files into etc/letsencrypt/configs, named after <domain>.conf. The files are simple:

grugq

Simple Security Guidelines

Using an iDevice? (Best option)

• Use an iPod or an iPad without a SIM card
• Use an iPhone
• Do not jailbreak
• Always upgrade to new iOS versions
• Use Brave browser

Need Secure chat?

ivnsch

// NOTE: you may have to set the module in the storyboard to "SwiftCharts", otherwise the view may not be recognized correctly, which leads to axis, labels and guidelines not showing

class HelloWorld: UIViewController {
    
    private var chart: Chart? // arc
    
    @IBOutlet weak var chartView: ChartBaseView!
    
    private var didLayout: Bool = false