zwang

// Note: This must be used in an Xcode project that contains a bridging header
// that includes <asl.h>

import Foundation

/// Provides high-level methods to access the raw data in
/// an ASL message.
struct SystemLogEntry {
    /// Key-value pairs read from ASL message
    let data: [String : String]

zwang

#!/usr/bin/env ruby

device_types_output = `xcrun simctl list devicetypes`
device_types = device_types_output.scan /(.*) \((.*)\)/

runtimes_output = `xcrun simctl list runtimes`
runtimes = runtimes_output.scan /(.*) \(.*\) \((com.apple[^)]+)\)$/

devices_output = `xcrun simctl list devices`
devices = devices_output.scan /\s\s\s\s(.*) \(([^)]+)\) (.*)/

zwang

#!/bin/sh

modulesDirectory=$DERIVED_FILES_DIR/modules
modulesMap=$modulesDirectory/module.modulemap
modulesMapTemp=$modulesDirectory/module.modulemap.tmp

mkdir -p "$modulesDirectory"

cat > "$modulesMapTemp" << MAP
module sqlite3 [system] {

zwang

extension String {
    func size(withAttributes attrs: [String:AnyObject], constrainedTo box: NSSize) -> NSRect {
        let storage = NSTextStorage(string: self)
        let container = NSTextContainer(containerSize: NSSize(width: box.width, height: box.height))
        let layout = NSLayoutManager()
        layout.addTextContainer(container)
        storage.addLayoutManager(layout)
        storage.addAttributes(attrs, range: NSMakeRange(0, storage.length))
        container.lineFragmentPadding = 0.0
        let _ = layout.glyphRangeForTextContainer(container)

zwang

When you get an error code in with the domain kCFStreamErrorDomainSSL, you can generally find the error codes in SecureTransport.h which is in /System/Library/Frameworks/Security.framework.  Here are the error codes:

enum {
  errSSLProtocol                  = -9800,  /* SSL protocol error */
  errSSLNegotiation               = -9801,  /* Cipher Suite negotiation failure */
  errSSLFatalAlert                = -9802,  /* Fatal alert */
  errSSLWouldBlock                = -9803,  /* I/O would block (not fatal) */
  errSSLSessionNotFound           = -9804,  /* attempt to restore an unknown session */
  errSSLClosedGraceful            = -9805,  /* connection closed gracefully */
  errSSLClosedAbort               = -9806,  /* connection closed via error */

zwang

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

zwang

#!/bin/bash

set -x

CURRENT=`pwd`
__pr="--print-path"
__name="xcode-select"
DEVELOPER=`${__name} ${__pr}`

GMP_VERSION="5.1.3"

zwang

#include <node.h>

#include "Test.h"

namespace demo {

using v8::FunctionCallbackInfo;
using v8::Isolate;
using v8::Local;
using v8::Object;