Question

What’s the best way to get an url minus its query string in Objective-C? An example:

Input:

http://www.example.com/folder/page.htm?param1=value1&param2=value2

Output:

http://www.example.com/folder/page.htm

Is there a NSURL method to do this that I’m missing?

Answer 1

There’s no NSURL method I can see. You might try something like:

NSURL *newURL = [[NSURL alloc] initWithScheme:[url scheme]
                                         host:[url host]
                                         path:[url path]];

Testing looks good:

#import <Foundation/Foundation.h>
int main(int argc, char *argv[]) {
    NSAutoreleasePool *arp = [[NSAutoreleasePool alloc] init];

    NSURL *url = [NSURL URLWithString:@"http://www.abc.com/foo/bar.cgi?a=1&b=2"];
    NSURL *newURL = [[[NSURL alloc] initWithScheme:[url scheme]
                                              host:[url host]
                                              path:[url path]] autorelease];
    NSLog(@"\n%@ --> %@", url, newURL);
    [arp release];
    return 0;
}

Running this produces:

$ gcc -lobjc -framework Foundation -std=c99 test.m ; ./a.out 
2010-11-25 09:20:32.189 a.out[36068:903] 
http://www.abc.com/foo/bar.cgi?a=1&b=2 --> http://www.abc.com/foo/bar.cgi