iPhone - Comparing strings with a German umlaut

Question

I\'ve few German strings (with umlauts like åä etc) in NSArray. For example consider a word like \"gënder\" is there in array. User enters \"gen\" in a text field. I can to

Answer 1

Use the NSDiacriticInsensitiveSearch option of the various NSString compare methods. As described in the documentation:

Search ignores diacritic marks. For example, ‘ö’ is equal to ‘o’.

For example:

NSString *text = @"gënder";
NSString *searchString = @"ender";

NSRange rng = [text rangeOfString:searchString 
                          options:NSDiacriticInsensitiveSearch];

if (rng.location != NSNotFound)
{
    NSLog(@"Match at %@", NSStringFromRange(rng));
}
else
{
    NSLog(@"No match");
}