NSString has emoji

gistfile1.m

// Reference:
// https://github.com/iamcal/php-emoji
// http://de.wikipedia.org/wiki/Unicode-Block_Kombinierende_diakritische_Zeichen_f%C3%BCr_Symbole

- (BOOL)hasEmoji
{
    __block BOOL emoji = NO;
    [self enumerateSubstringsInRange:NSMakeRange(0, self.length)
                             options:NSStringEnumerationByComposedCharacterSequences
                          usingBlock:^(NSString *substring, NSRange substringRange, NSRange enclosingRange, BOOL *stop) {
                              const unichar hs = [substring characterAtIndex: 0];

                              if (0xd800 <= hs && hs <= 0xdbff) {
                                  const unichar ls = [substring characterAtIndex: 1];
                                  const int uc = ((hs - 0xd800) * 0x400) + (ls - 0xdc00) + 0x10000;
                                  if (0x1d000 <= uc && uc <= 0x1f77f) {
                                      emoji = YES;
                                      *stop = YES;
                                  }
                              } else {
                                  if (0x2100 <= hs && hs <= 0x27ff) {
                                      emoji = YES;
                                      *stop = YES;
                                  }
                                  else if (hs == 0x2b05 || hs == 0x2b06 || hs == 0x2b07 ||
                                           hs == 0x2b55 || hs == 0x2b50 || hs == 0x2b1b || hs == 0x2b1c ||
                                           hs == 0x00a9 || hs == 0x00ae ||
                                           hs == 0x2934 || hs == 0x2935 ||
                                           hs == 0x2049 || hs == 0x203c || hs == 0x2002 || hs == 0x2003 || hs == 0x2005 ||
                                           hs == 0x3030 || hs == 0x303d ||
                                           hs == 0x3297 || hs == 0x3299 ||
                                           hs == 0x231a || hs == 0x231b || hs == 0x23f0 || hs == 0x23f3 ||
                                           (hs >= 0x23e9 && hs <= 0x23ec) ||
                                           hs == 0x24c2 ||
                                           (hs >= 0x25fb && hs <= 0x25fe) ||
                                           hs == 0x25aa || hs == 0x25ab || hs == 0x25b6 || hs == 0x25c0) {
                                      emoji = YES;
                                      *stop = YES;
                                  }
                                  else if ((hs >= 0x0030 && hs <= 0x0039) || hs == 0x0023) { //1234567890#
                                      if (substring.length > 1) { //1⃣2⃣3⃣...
                                          const unichar ls = [substring characterAtIndex:1];
                                          if (ls == 0x20E3) { // ⃣ 
                                              emoji = YES;
                                              *stop = YES;
                                          }
                                      }
                                  }
                              }
                          }];
    
    return emoji;
}