@"{d83d}{de02}" 轉(zhuǎn)換成 ??
- (int)hex2dec:(NSString *)hex {
int dec=0;
int len = [hex length];
int i;
for(i=len-1;i>=0;i--) {
unichar c = [hex characterAtIndex:i];
if(c >= '0' && c <='9'){
dec += (c-48)<<(4*(len-i-1));
}else if(c >= 'A' && c <='F'){
dec += (c-55)<<(4*(len-i-1));
}else if(c >= 'a' && c <='f'){
dec += (c-87)<<(4*(len-i-1));
}
}
return dec;
}
/**
* 將表情描述轉(zhuǎn)換成表情
*
* @param str
* @return
*/
- (NSString*)getEmoji:(NSString*)str {
NSString *string = str;
NSString *strRegex = @"\\{(.*?)\\}";
NSError *error = nil;
//創(chuàng)建正則表達(dá)式對象
NSRegularExpression *reg = [NSRegularExpression regularExpressionWithPattern:strRegex options:NSRegularExpressionCaseInsensitive|NSRegularExpressionDotMatchesLineSeparators error:&error];
//無視大小寫.
NSArray *matches = [reg matchesInString:string options:NSMatchingCompleted range:NSMakeRange(0, [string length])];
NSString *originString = [string copy];
for (NSTextCheckingResult *match in matches) {
NSRange range = [match range];
NSString *s1 = [originString substringWithRange:NSMakeRange(range.location, range.length)];
NSString *s2 = [s1 substringWithRange:NSMakeRange(1, s1.length - 2)];
NSString *s3;
@try{
s3 = [NSString stringWithFormat:@"%C", (unichar)[self hex2dec:s2]];
NSLog(@"s1: %@", s1);
NSLog(@"s2: %@", s2);
NSLog(@"s3: %@", s3);
string = [string stringByReplacingOccurrencesOfString:s1 withString:s3];
} @catch(NSException *e) {
NSLog(@"%@", e);
}
}
return string;
}
