jogi

- (void)viewDidLoad 
{
    [super viewDidLoad];
    [creditCardNumberTextField addTarget:self action:@selector(creditCardNumberFormatter:) forControlEvents:UIControlEventEditingChanged];
    [creditCardExpiryTextField addTarget:self action:@selector(creditCardExpiryFormatter:) forControlEvents:UIControlEventEditingChanged];
}

- (void)creditCardNumberFormatter:(id)sender {
    NSString *formattedText = [StringUtils formatCreditCard:self.creditCardNumberTextField.text]; // this is out formatter
    if (![formattedText isEqualToString:self.creditCardNumberTextField.text]) {

jogi

#!/bin/sh
PROJ=`find . -name '*.xib' -o -name '*.[mh]' -o -name '*.storyboard' -o -name '*.mm'`

for png in `find . -name '*.png'`
do
   name=`basename -s .png $png`
   name=`basename -s @2x $name`
   if ! grep -q $name $PROJ; then
        echo "$png"
   fi

jogi

def merge(left, right):
	if not len(left) or not len(right):
		return left or right

	result = []
	i, j = 0, 0
	while (len(result) < len(left) + len(right)):
		if left[i] < right[j]:
			result.append(left[i])
			i+= 1