YouTubeParseLinks.m

YouTubeParseLinks.m

NSString *url = @"https://www.youtube.com/watch?v=ZGNvt_L_cag";
NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"(?<=v(=|/))([-a-zA-Z0-9_]+)|(?<=youtu.be/)([-a-zA-Z0-9_]+)" options:NSRegularExpressionCaseInsensitive error:nil];
NSTextCheckingResult *match = [regex firstMatchInString:url options:0 range:NSMakeRange(0, [url length])];
NSRange range = [match rangeAtIndex:0];
NSString *youTubeID = [url substringWithRange:range];
NSLog(@"%@", youTubeID);