diff options
Diffstat (limited to 'lib/charset.c')
| -rw-r--r-- | lib/charset.c | 55 |
1 files changed, 46 insertions, 9 deletions
diff --git a/lib/charset.c b/lib/charset.c index 946d5ee..f44c58d 100644 --- a/lib/charset.c +++ b/lib/charset.c @@ -481,15 +481,6 @@ uint8_t *utf16_to_utf8(uint8_t *dest, const uint16_t *src, size_t size) return dest; } -/** - * utf_to_cp() - translate Unicode code point to 8bit codepage - * - * Codepoints that do not exist in the codepage are rendered as question mark. - * - * @c: pointer to Unicode code point to be translated - * @codepage: Unicode to codepage translation table - * Return: 0 on success, -ENOENT if codepoint cannot be translated - */ int utf_to_cp(s32 *c, const u16 *codepage) { if (*c >= 0x80) { @@ -507,3 +498,49 @@ int utf_to_cp(s32 *c, const u16 *codepage) } return 0; } + +int utf8_to_cp437_stream(u8 c, char *buffer) +{ + char *end; + const char *pos; + s32 s; + int ret; + + for (;;) { + pos = buffer; + end = buffer + strlen(buffer); + *end++ = c; + *end = 0; + s = utf8_get(&pos); + if (s > 0) { + *buffer = 0; + ret = utf_to_cp(&s, codepage_437); + return s; + } + if (pos == end) + return 0; + *buffer = 0; + } +} + +int utf8_to_utf32_stream(u8 c, char *buffer) +{ + char *end; + const char *pos; + s32 s; + + for (;;) { + pos = buffer; + end = buffer + strlen(buffer); + *end++ = c; + *end = 0; + s = utf8_get(&pos); + if (s > 0) { + *buffer = 0; + return s; + } + if (pos == end) + return 0; + *buffer = 0; + } +} |