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POFiltered NSArray not working right when a ? is in the NSString
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copied!<p>When I try to filter an array of strings I do not get a match for the value that has a ? in it when using filteredArrayUsingPredicate:. You can substitute the URLs for just a sentence with a ? and you still get the same thing.</p> <p>Here's the simplified code:</p> <pre><code>-(void)test { NSArray *theURLs = [NSArray arrayWithObjects:@"http://www.google.com", @"http://www.google.com?test=1", nil]; NSString *currentURL = @"http://www.google.com?test=1"; NSLog(@"currentURL %@", currentURL); NSPredicate *matchURLPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES[cd] %@", [currentURL lowercaseString]]; NSLog(@"match predicate %@", matchURLPredicate); NSArray *filteredArray = [theURLs filteredArrayUsingPredicate:matchURLPredicate]; NSLog(@"filtered array %@", filteredArray); if ([filteredArray count]== 0) { NSLog(@"http://www.google.com?test=1 should have been found, but was not"); } else { NSLog(@"http://www.google.com?test=1 was found"); } } </code></pre> <p>If I look for just @"http://www.google.com" it is filtered just fine.</p> <p>Here's the corrected code:</p> <pre><code>-(void)test { NSArray *theURLs = [NSArray arrayWithObjects:@"http://www.google.com", @"http://www.google.com?test=1", nil]; NSString *currentURL = @"http://www.google.com\\?test=1"; NSLog(@"currentURL %@", currentURL); NSPredicate *matchURLPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES[cd] %@", [currentURL lowercaseString]]; NSLog(@"match predicate %@", matchURLPredicate); NSArray *filteredArray = [theURLs filteredArrayUsingPredicate:matchURLPredicate]; NSLog(@"filtered array %@", filteredArray); if ([filteredArray count]== 0) { NSLog(@"http://www.google.com?test=1 should have been found, but was not"); } else { NSLog(@"http://www.google.com?test=1 was found"); } } </code></pre>

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