[Object-C]判断字符串中是否包含表情

来源：互联网发布：室内温度测量软件编辑：程序博客网时间：2024/05/17 06:39
- (BOOL)stringContainsEmoji:(NSString *)string{    __block BOOL returnValue =NO;    [string enumerateSubstringsInRange:NSMakeRange(0, [string length]) options:NSStringEnumerationByComposedCharacterSequences usingBlock:^(NSString *substring, NSRange substringRange, NSRange enclosingRange, BOOL *stop) {        const unichar hs = [substring characterAtIndex:0];        // surrogate pair        if (0xd800) {            if (0xd800 <= hs && hs <= 0xdbff) {                if (substring.length > 1) {                    const unichar ls = [substring characterAtIndex:1];                    const int uc = ((hs - 0xd800) * 0x400) + (ls - 0xdc00) + 0x10000;                    if (0x1d000 <= uc && uc <= 0x1f77f) {                        returnValue =YES;                    }                }            }else if (substring.length > 1) {                const unichar ls = [substring characterAtIndex:1];                if (ls == 0x20e3) {                    returnValue =YES;                }            }else {                // non surrogate                if (0x2100 <= hs && hs <= 0x27ff) {                    returnValue =YES;                }else if (0x2B05 <= hs && hs <= 0x2b07) {                    returnValue =YES;                }else if (0x2934 <= hs && hs <= 0x2935) {                    returnValue =YES;                }else if (0x3297 <= hs && hs <= 0x3299) {                    returnValue =YES;                }else if (hs == 0xa9 || hs == 0xae || hs == 0x303d || hs == 0x3030 || hs == 0x2b55 || hs == 0x2b1c || hs == 0x2b1b || hs == 0x2b50) {                    returnValue =YES;                }            }        }    }];    return returnValue;}
0 0