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#!/bin/bash | |
# bash generate random alphanumeric string | |
# | |
# bash generate random 32 character alphanumeric string (upper and lowercase) and | |
NEW_UUID=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1) | |
# bash generate random 32 character alphanumeric string (lowercase only) | |
cat /dev/urandom | tr -dc 'a-z0-9' | fold -w 32 | head -n 1 |
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- (BOOL)stringContainsEmoji:(NSString *)string { | |
__block BOOL returnValue = NO; | |
[string enumerateSubstringsInRange:NSMakeRange(0, [string length]) options:NSStringEnumerationByComposedCharacterSequences usingBlock: | |
^(NSString *substring, NSRange substringRange, NSRange enclosingRange, BOOL *stop) { | |
const unichar hs = [substring characterAtIndex:0]; | |
// surrogate pair | |
if (0xd800 <= hs && hs <= 0xdbff) { | |
if (substring.length > 1) { | |
const unichar ls = [substring characterAtIndex:1]; |
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import Foundation | |
import XCPlayground | |
XCPSetExecutionShouldContinueIndefinitely() | |
func getAllEmojis(completion: String? -> ()) { | |
let url = NSURL(string: "http://www.unicode.org/Public/UCD/latest/ucd/EmojiSources.txt")! | |
NSURLSession.sharedSession().dataTaskWithURL(url) { data, response, error in | |
guard let data = data where error == nil else { | |
completion(nil) |