Mercurial > hg > nnchat
comparison th_string.c @ 131:3896861974ac
Added th_get_hex_triplet().
| author | Matti Hamalainen <ccr@tnsp.org> |
|---|---|
| date | Sat, 30 Oct 2010 17:02:35 +0300 |
| parents | f741718d13c5 |
| children | a1ee6c76ca1c |
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| 130:352ec3c300e4 | 131:3896861974ac |
|---|---|
| 416 } while (didMatch && !isEnd); | 416 } while (didMatch && !isEnd); |
| 417 | 417 |
| 418 return didMatch; | 418 return didMatch; |
| 419 } | 419 } |
| 420 | 420 |
| 421 | |
| 422 int th_get_hex_triplet(const char *str) | |
| 423 { | |
| 424 const char *p = str; | |
| 425 int len, val = 0; | |
| 426 | |
| 427 for (len = 0; *p && len < 6; p++, len++) { | |
| 428 if (*p >= '0' && *p <= '9') { | |
| 429 val *= 16; val += (*p - '0'); | |
| 430 } else if (*p >= 'A' && *p <= 'F') { | |
| 431 val *= 16; val += (*p - 'A') + 10; | |
| 432 } else if (*p >= 'a' && *p <= 'f') { | |
| 433 val *= 16; val += (*p - 'a') + 10; | |
| 434 } else | |
| 435 return -1; | |
| 436 } | |
| 437 | |
| 438 return (len == 6) ? val : -1; | |
| 439 } | |
| 440 | |
| 441 |