Question

I want to make an array of Unicode characters, but I don’t know how to convert integers into a Unicode representation. Here’s the code I have so far

NSMutableArray *uniArray = [[NSMutableArray alloc] initWithCapacity:0];
int i;

for (i = 32; i < 300; i++) {
    NSString *uniString = [NSString stringWithFormat:@"\u%04X", i];
    [uniArray addObject:uniString];
}

Which gives me an error “incomplete universal character name \u”

Is there a better way to build an array of Unicode symbols? Thanks.

Answer 1

You should use %C to insert a unicode character:

NSMutableArray *uniArray = [[NSMutableArray alloc] initWithCapacity:0];
int i;

for (i = 32; i < 300; i++) {
   NSString *uniString = [NSString stringWithFormat:@"%C", i];
   [uniArray addObject:uniString];
}

Another (better?) way is using stringWithCharacters:

NSMutableArray *uniArray = [[NSMutableArray alloc] initWithCapacity:0];
int i;

for (i = 32; i < 300; i++) {
   NSString *uniString = [NSString stringWithCharacters:(unichar *)&i length:1];
   [uniArray addObject:uniString];
}