Mercurial > ~mikael > mcabber > hg
annotate mcabber/src/utf8.c @ 364:33b8e801ffa6
Merge changeset 315 (65aa05520556)
| author | Mikael Berthe <mikael@lilotux.net> |
|---|---|
| date | Sun, 24 Jul 2005 15:13:53 +0100 |
| parents | 53dfe6aa6a23 18a03a69f5e4 |
| children |
| rev | line source |
|---|---|
| 24 | 1 #include <stdlib.h> |
| 2 #include <string.h> | |
| 3 | |
| 4 #include "utf8.h" | |
| 5 | |
| 6 | |
| 7 /* Desc: convert UTF8 -> ASCII | |
| 8 * | |
| 9 * In : UTF8 string | |
| 10 * Out : ASCII string | |
| 11 * | |
| 12 * Note: it is up to the caller to free the returned string | |
| 13 */ | |
| 14 char *utf8_decode(const char *src) | |
| 15 { | |
| 327 | 16 unsigned char *ret, *aux; |
|
326
1bc374915787
Fix crash when utf8_decode parameter is NULL
Mikael Berthe <mikael@lilotux.net>
parents:
49
diff
changeset
|
17 |
|
1bc374915787
Fix crash when utf8_decode parameter is NULL
Mikael Berthe <mikael@lilotux.net>
parents:
49
diff
changeset
|
18 if (!src) return NULL; |
|
1bc374915787
Fix crash when utf8_decode parameter is NULL
Mikael Berthe <mikael@lilotux.net>
parents:
49
diff
changeset
|
19 |
| 327 | 20 aux = ret = calloc(1, strlen(src) + 1); |
| 24 | 21 |
| 22 while (*src) { | |
| 23 unsigned char lead = *src++; | |
| 24 if ((lead & 0xe0) == 0xc0) { | |
| 25 unsigned char ch2 = *src++; | |
| 26 *aux = ((lead & 0x1f) << 6) | (ch2 & 0x3f); | |
| 27 } else { | |
| 28 *aux = lead; | |
| 29 } | |
| 30 aux++; | |
| 31 } | |
| 32 | |
|
326
1bc374915787
Fix crash when utf8_decode parameter is NULL
Mikael Berthe <mikael@lilotux.net>
parents:
49
diff
changeset
|
33 return (char*)ret; |
| 24 | 34 } |
| 35 | |
| 36 | |
| 37 /* Desc: convert ASCII -> UTF8 | |
| 38 * | |
| 39 * In : ASCII string | |
| 40 * Out : UTF8 string | |
| 41 * | |
| 42 * Note: it is up to the caller to free the returned string | |
| 43 */ | |
| 44 char *utf8_encode(const char *src) | |
| 45 { | |
| 327 | 46 unsigned char *ret, *aux; |
|
326
1bc374915787
Fix crash when utf8_decode parameter is NULL
Mikael Berthe <mikael@lilotux.net>
parents:
49
diff
changeset
|
47 |
|
1bc374915787
Fix crash when utf8_decode parameter is NULL
Mikael Berthe <mikael@lilotux.net>
parents:
49
diff
changeset
|
48 if (!src) return NULL; |
|
1bc374915787
Fix crash when utf8_decode parameter is NULL
Mikael Berthe <mikael@lilotux.net>
parents:
49
diff
changeset
|
49 |
| 327 | 50 aux = ret = calloc(1, (strlen(src) * 2) + 1); |
| 24 | 51 |
| 52 while (*src) { | |
| 53 unsigned char ch = *src++; | |
| 34 | 54 if (ch < 0x80U) { |
| 55 *aux++ = ch; | |
| 48 | 56 } else { /* if (ch < 0x800U) { */ |
| 34 | 57 *aux++ = 0xc0 | (ch >> 6); |
| 58 *aux++ = 0x80 | (ch & 0x3f); | |
| 24 | 59 } |
| 60 } | |
| 61 | |
|
326
1bc374915787
Fix crash when utf8_decode parameter is NULL
Mikael Berthe <mikael@lilotux.net>
parents:
49
diff
changeset
|
62 return (char*)ret; |
| 24 | 63 } |