Created
September 9, 2024 00:47
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| #import <Foundation/Foundation.h> | |
| int main(int argc, const char * argv[]) { | |
| @autoreleasepool { | |
| const unsigned char string[] = "ABC😇123😅abc🥹"; | |
| unsigned char tmp[4] = {'\0', '\0', '\0', '\0'}; | |
| for (size_t idx = 0; idx < (sizeof(string) / sizeof(unsigned char)); idx++) { | |
| const unsigned char _char = string[idx]; | |
| if (_char == '\0') { | |
| continue; | |
| } else if (_char < 0b10000000) { | |
| if (tmp[0] != '\0') { | |
| NSLog(@"%@", [[NSString alloc] initWithBytes:tmp length:4 encoding:NSUTF8StringEncoding]); | |
| } | |
| for (size_t idx = 0; idx < 4; idx++) { | |
| tmp[idx] = '\0'; | |
| } | |
| NSLog(@"%c", _char); | |
| } else if (_char < 0b11000000) { | |
| for (size_t idx = 0; idx < 4; idx++) { | |
| if (tmp[idx] == '\0') { | |
| if (idx == 0) { | |
| abort(); | |
| } else { | |
| tmp[idx] = _char; | |
| break; | |
| } | |
| } | |
| } | |
| } else if (_char >= 0b11000000) { | |
| if (tmp[0] != '\0') { | |
| NSLog(@"%@", [[NSString alloc] initWithBytes:tmp length:4 encoding:NSUTF8StringEncoding]); | |
| } | |
| tmp[0] = _char; | |
| for (size_t idx = 1; idx < 4; idx++) { | |
| tmp[idx] = '\0'; | |
| } | |
| } else { | |
| abort(); | |
| } | |
| } | |
| } | |
| return 0; | |
| } |
Author
pookjw
commented
Sep 9, 2024
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