- (NSString *) packUtf8ToUnicode:(NSString *)string
{
NSUInteger length = [string length];
NSMutableString *s = [NSMutableString stringWithCapacity:0];
for (int i = 0;i < length; i++) {
unichar _char = [string characterAtIndex:i];
if (_char <= '9' && _char >= '0') {
[s appendFormat:@"%@",[string substringWithRange:NSMakeRange(i, 1)]];
}else if(_char >= 'a' && _char <= 'z')
{
[s appendFormat:@"%@",[string substringWithRange:NSMakeRange(i, 1)]];
}else if(_char >= 'A' && _char <= 'Z')
{
[s appendFormat:@"%@",[string substringWithRange:NSMakeRange(i, 1)]];
}else
{
[s appendFormat:@"\\u%x",[string characterAtIndex:i]];
}
}
return s;
}
- (NSString *)unPackUnicode:(NSString *)unicodeStr {
NSString *tempStr1 = [unicodeStr stringByReplacingOccurrencesOfString:@"\\u" withString:@"\\U"];
NSString *tempStr2 = [tempStr1 stringByReplacingOccurrencesOfString:@"\"" withString:@"\\\""];
NSString *tempStr3 = [[@"\"" stringByAppendingString:tempStr2] stringByAppendingString:@"\""];
NSData *tempData = [tempStr3 dataUsingEncoding:NSUTF8StringEncoding];
NSString* returnStr = [NSPropertyListSerialization propertyListFromData:tempData
mutabilityOption:NSPropertyListImmutable
format:NULL
errorDescription:NULL];
return [returnStr stringByReplacingOccurrencesOfString:@"\\r\\n" withString:@"\n"];
}
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