From: Janne Grunau j@jannau.net
Suggested-by: Heinrich Schuchardt xypron.glpk@gmx.de Reviewed-by: Heinrich Schuchardt xypron.glpk@gmx.de Signed-off-by: Janne Grunau j@jannau.net --- include/charset.h | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/include/charset.h b/include/charset.h index 44034c71d3..f1050c903d 100644 --- a/include/charset.h +++ b/include/charset.h @@ -324,11 +324,21 @@ int utf_to_cp(s32 *c, const u16 *codepage); int utf8_to_cp437_stream(u8 c, char *buffer);
/** - * utf8_to_utf32_stream() - convert UTF-8 stream to UTF-32 + * utf8_to_utf32_stream() - convert UTF-8 byte stream to Unicode code points + * + * The function is called for each byte @c in a UTF-8 stream. The byte is + * appended to the temporary storage @buffer until the UTF-8 stream in + * @buffer describes a Unicode code point. + * + * When a new code point has been decoded it is returned and buffer[0] is + * set to '\0', otherwise the return value is 0. + * + * The buffer must be at least 5 characters long. Before the first function + * invocation buffer[0] must be set to '\0'." * * @c: next UTF-8 character to convert * @buffer: buffer, at least 5 characters - * Return: next codepage 437 character or 0 + * Return: Unicode code point or 0 */ int utf8_to_utf32_stream(u8 c, char *buffer);