From the documentation: "Options: A mask specifying search options. The following options may be specified by combining them with the C bitwise OR operator: NSAnchoredSearch, NSBackwardsSearch." So it seems like a correct behavior, not sure why only those two options can apply.
NSCaseInsensitiveSearch not works in rangeOfCharacterFromSet
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14-06-2023 - |
题
It seems that NSCaseInsensitiveSearch
not works in NSString:rangeOfCharacterFromSet
. Can someone explain why? is it correct behaviour?
NSString *string = @"James Bond Always Rocks";
NSRange range = [string rangeOfCharacterFromSet:[NSCharacterSet characterSetWithCharactersInString:@"J"] options:NSCaseInsensitiveSearch];
NSLog(@"range->%@",NSStringFromRange(range)); //This prints range->{0, 1}
NSString *string = @"James Bond Always Rocks";
NSRange range = [string rangeOfCharacterFromSet:[NSCharacterSet characterSetWithCharactersInString:@"j"] options:NSCaseInsensitiveSearch];
NSLog(@"range->%@",NSStringFromRange(range)); //This prints range->{2147483647, 0}
解决方案
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