iPhone: find one string in another with case insensetive
My question is similar to How do I check if a string contains another string in Objective-C?
How can I check if a string (NSString) contains another smaller string but with ignoring case?
NSString *string = @"hello bla bla";
I was hoping for something like:
NSLog(@"%d",[string containsSubstring:@"BLA"]);
Anyway is there any way to find if a string contains another string with ignore case ? But please do not convert both strings to UpperCase or to LowerCase.
As similar to the answer provided in the link, but use options .
See - (NSRange)rangeOfString:(NSString *)aString options:(NSStringCompareOptions)mask in Apple doc
NSString *string = @"hello bla bla";
if ([string rangeOfString:@"BLA" options:NSCaseInsensitiveSearch].location == NSNotFound)
{
NSLog(@"string does not contain bla");
}
else
{
NSLog(@"string contains bla!");
}
从iOS 8开始，您可以将containsString:或localizedCaseInsensitiveContainsString方法添加到NSString。
if ([string localizedCaseInsensitiveContainsString:@"BlA"]) {
NSLog(@"string contains Case Insensitive bla!");
} else {
NSLog(@"string does not contain bla");
}
NSString *string = @"hello BLA";
if ([string rangeOfString:@"bla" options:NSCaseInsensitiveSearch].location == NSNotFound) {
NSLog(@"string does not contain bla");
} else {
NSLog(@"string contains bla!");
}
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