Question

How can I search a string using rangeOfString for uppercase and lowercase occurrences?

This is what I have so far;

for (NSString* key in words) {

if ([searchfield.text rangeOfString:key].location != NSNotFound) 
{

       NSString *textresult = [words objectForKey:key];
       NSLog(@"Answer: %@", textresult);
       result.text = textresult;

       result.tag = 1;

}

Thanks

Answer 1

Simply search for the appropriate key in upper or lower case:

[searchField.text rangeOfString:[key lowercaseString]].location != NSNotFound

and

[searchField.text rangeOfString:[key uppercaseString]].location != NSNotFound

If you do not care if the user used upper or lower case, simply use the NSCaseInsensitiveSearch option:

[searchfield.text rangeOfString:key options: NSCaseInsensitiveSearch].location 
   != NSNotFound