Question

Let’s assume I have the string:

"I love visiting http://www.google.com"

How can I detect the token, http://www.google.com?

Answer 1

You can use NSDataDetectors These were added in iOS4 and are quite useful. You want to create a data detector with the NSTextCheckingTypeLink and let it do its thing.

NSString *testString = @"Hello http://google.com world";
NSDataDetector *detect = [[NSDataDetector alloc] initWithTypes:NSTextCheckingTypeLink error:nil];
NSArray *matches = [detect matchesInString:testString options:0 range:NSMakeRange(0, [testString length])];
NSLog(@"%@", matches);