iphone - iOS: parse a URL into segments

Question

What's an efficient way to take an NSURL object such as the following:

foo://name/12345 

and break it up into one string and one unsigned integer, where the string val is 'name' and the unsigned int is 12345?

I'm assuming the algorithm involves converting NSURL to an NSString and then using some components of NSScanner to finish the rest?

Answer 1

I can only add an example here, the NSURL class is the one to go. This is not complete but will give you a hint on how to use NSURL:

NSString *url_ = @"foo://name.com:8080/12345;param?foo=1&baa=2#fragment";
NSURL *url = [NSURL URLWithString:url_];

NSLog(@"scheme: %@", [url scheme]); 
NSLog(@"host: %@", [url host]); 
NSLog(@"port: %@", [url port]);     
NSLog(@"path: %@", [url path]);     
NSLog(@"path components: %@", [url pathComponents]);        
NSLog(@"parameterString: %@", [url parameterString]);   
NSLog(@"query: %@", [url query]);       
NSLog(@"fragment: %@", [url fragment]);

output:

scheme: foo
host: name.com
port: 8080
path: /12345
path components: (
    "/",
    12345
)
parameterString: param
query: foo=1&baa=2
fragment: fragment

This Q&A NSURL's parameterString confusion with use of ';' vs '&' is also interesting regarding URLs.