spig

// checksum calculation for GTIN-8, GTIN-12, GTIN-13, GTIN-14, and SSCC
// based on http://www.gs1.org/barcodes/support/check_digit_calculator
function isValidBarcode(barcode) {
  // check length
  if (barcode.length < 8 || barcode.length > 18 ||
      (barcode.length != 8 && barcode.length != 12 &&
      barcode.length != 13 && barcode.length != 14 &&
      barcode.length != 18)) {
    return false;
  }

MaximKeegan

#!/bin/sh
# Create a RAM disk with same perms as mountpoint
# Script based on http://itux.idev.pro/2012/04/iservice-speed-up-your-xcode-%D0%BD%D0%B5%D0%BA%D0%BE%D1%82%D0%BE%D1%80%D1%8B%D0%B5-%D1%81%D0%BF%D0%BE%D1%81%D0%BE%D0%B1%D1%8B/ with some additions
# Usage: sudo ./xcode_ramdisk.sh start

USERNAME=$(logname)

TMP_DIR="/private/tmp"
RUN_DIR="/var/run"
SYS_CACHES_DIR="/Library/Caches"

steipete

// Taken from the commercial iOS PDF framework http://pspdfkit.com.
// Copyright (c) 2014 Peter Steinberger, PSPDFKit GmbH. All rights reserved.
// Licensed under MIT (http://opensource.org/licenses/MIT)
//
// You should only use this in debug builds. It doesn't use private API, but I wouldn't ship it.

// PLEASE DUPE rdar://27192338 (https://openradar.appspot.com/27192338) if you would like to see this in UIKit.

#import <objc/runtime.h>
#import <objc/message.h>

guillermo

#!/bin/bash

# This is a unix wrapper around the erlang vm. It provides the following functionality:
#
# * Spawns in foreground
# * Handle SIGHUP and call RELOADFUNC
# * Handle SIGTERM SIGQUIT and SIGINT telling to the vm to quit
# * Dies if the vm dies (for example kernel killing because out of memory)
#
# Forks and improvements are welcome.

prendio2

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    
    NSIndexPath *selectedRowIndexPath = [self.tableView indexPathForSelectedRow];
    if (selectedRowIndexPath) {
        [self.tableView deselectRowAtIndexPath:selectedRowIndexPath animated:YES];
        [[self transitionCoordinator] notifyWhenInteractionEndsUsingBlock:^(id<UIViewControllerTransitionCoordinatorContext> context) {
            if ([context isCancelled]) {
                [self.tableView selectRowAtIndexPath:selectedRowIndexPath animated:NO scrollPosition:UITableViewScrollPositionNone];

BanzaiMan

Issue

Users report issues with code signing their Objective-C based project with the newly-rolled out Mavericks image on Travis CI.

The error looks something like:

Code Sign error: No codesigning identities found: No codesigning identities (i.e. certificate and private key pairs) that match the provisioning profile specified in your build settings ("Chappy Dev Adhoc") were found. CodeSign error: code signing is required for product type 'Application' in SDK 'iOS 7.1'

Workaround

A couple of users have reported that setting the keychain in use to be the default will fix this issue. For example:

landonf

A result type (based on swiftz) that can represent either an error or success:

enum Result<X, T> {
  case Err(() -> X)
  case Ok(() -> T)
}

Now we need a way to chain multiple results together without lots of nesting of if statements -- or exceptions. To do so, we can define a new bind (result, next) operator (implementation borrowed from swiftz) that operates on Result types (a.k.a flatMap or >>=):

• If the result is Err, the result is immediately returned.

tonyarnold

import Foundation

@assignment func += <T:AnyObject> (inout array: T[], cocoaArray: NSArray) {
    array.extend(
        map(cocoaArray) {
            $0 as T
        }
    )
}

andymatuschak

//
//  MultiDirectionAdjudicatingScrollView.swift
//  Khan Academy
//
//  Created by Andy Matuschak on 12/16/14.
//  Copyright (c) 2014 Khan Academy. All rights reserved.
//

import UIKit
import UIKit.UIGestureRecognizerSubclass

rdougan

//
//  CollectionViewListLayout.swift
//  money
//
//  Created by Robert Dougan on 29/09/15.
//  Copyright © 2015 Phyn3t. All rights reserved.
//

import Cocoa