CODEWITHSUNDEEP
iosnsurl
Vulkan
Vulkan

Reputation: 1076

How can I get just the TLD of an NSURL?

For example:

"http://www.youtube.com" --> ".com"

"http://www.google.com.gr" --> ".com.gr"

"https://made.in.china.chinesewebsite.닷컴" --> ".닷컴"

The host of a URL is a dead-end.

NSURL *URL;

[URL host];

Upvotes: 0

Views: 149

Answers (1)

Duncan C
Duncan C

Reputation: 131481

Get the host of the url, break it up at the . delimiter, and take the last component.

- (NSString *) tldOfURL: NSURL *theURL; {
  NSString *host = theURL.host;
  NSArray *parts = [host componentsSeparatedByString: @"."];
  if parts.count < 2 {
    return nil;
  }
  return parts.lastObject;
}

At first my answer was to use NSURLComponents, as in most cases that class does all the heavy lifting for you, but it looks like it doesn't have a mechanism for extracting the TLD.

Note that the above will return nil if the host name does not contain at least one period (.) and will return an empty string if the host ends with a period. Both of these cases should be treated as errors.

P.S. I'm starting to get rusty at Objective-C syntax. Hard to believe, given how many years I's spent writing Objective-C!

Upvotes: 1

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