Create string from unicode.

gistfile1.m

// Guaranteed to get the characters in the 'illegal' ranges the compiler will complain about.
NSMutableAttributedString *attrStr = [NSMutableAttributedString attributedStringWithString:[NSString stringWithFormat:@"%C", (unsigned short)0xe007]];

// Same thing but use a string as the original source of the unicode instead of a literal.
unsigned int intValue;
NSScanner* scanner = [NSScanner scannerWithString:@"e007"];
[scanner scanHexInt:&intValue];
NSMutableAttributedString *attrStr = [NSMutableAttributedString attributedStringWithString:[NSString stringWithFormat:@"%C", (unsigned short)intValue]];