caca_charset - Online Linux Manual PageSection : 3caca
Updated : Tue Jan 26 2021
Source : Version 0.99.beta19
Note : libcaca
NAMEcaca_charset − libcaca character set conversions
SYNOPSIS
Moduleslibcaca primitives drawing
Functions__extern uint32_t caca_utf8_to_utf32 (char const *, size_t *)
Convert a UTF-8 character to UTF-32. __extern size_t caca_utf32_to_utf8 (char *, uint32_t)
Convert a UTF-32 character to UTF-8. __extern uint8_t caca_utf32_to_cp437 (uint32_t)
Convert a UTF-32 character to CP437. __extern uint32_t caca_cp437_to_utf32 (uint8_t)
Convert a CP437 character to UTF-32. __extern char caca_utf32_to_ascii (uint32_t)
Convert a UTF-32 character to ASCII. __extern int caca_utf32_is_fullwidth (uint32_t)
Tell whether a UTF-32 character is fullwidth.
Detailed DescriptionThese functions perform conversions between usual character sets.
Function Documentation
__extern uint32_t caca_utf8_to_utf32 (char const * s, size_t * bytes)Convert a UTF-8 character read from a string and return its value in the UTF-32 character set. If the second argument is not null, the total number of read bytes is written in it. If a null byte was reached before the expected end of the UTF-8 sequence, this function returns zero and the number of read bytes is set to zero. This function never fails, but its behaviour with illegal UTF-8 sequences is undefined. Parameters s A string containing the UTF-8 character.
bytes A pointer to a size_t to store the number of bytes in the character, or NULL. Returns The corresponding UTF-32 character, or zero if the character is incomplete. Referenced by caca_put_str().
__extern size_t caca_utf32_to_utf8 (char * buf, uint32_t ch)Convert a UTF-32 character read from a string and write its value in the UTF-8 character set into the given buffer. This function never fails, but its behaviour with illegal UTF-32 characters is undefined. Parameters buf A pointer to a character buffer where the UTF-8 sequence will be written.
ch The UTF-32 character. Returns The number of bytes written.
__extern uint8_t caca_utf32_to_cp437 (uint32_t ch)Convert a UTF-32 character read from a string and return its value in the CP437 character set, or '?' if the character has no equivalent. This function never fails. Parameters ch The UTF-32 character. Returns The corresponding CP437 character, or '?' if not representable.
__extern uint32_t caca_cp437_to_utf32 (uint8_t ch)Convert a CP437 character read from a string and return its value in the UTF-32 character set, or zero if the character is a CP437 control character. This function never fails. Parameters ch The CP437 character. Returns The corresponding UTF-32 character, or zero if not representable.
__extern char caca_utf32_to_ascii (uint32_t ch)Convert a UTF-32 character into an ASCII character. When no equivalent exists, a graphically close equivalent is sought. This function never fails, but its behaviour with illegal UTF-32 characters is undefined. Parameters ch The UTF-32 character. Returns The corresponding ASCII character, or a graphically close equivalent if found, or '?' if not representable.
__extern int caca_utf32_is_fullwidth (uint32_t ch)Check whether the given UTF-32 character should be printed at twice the normal width (fullwidth characters). If the character is unknown or if its status cannot be decided, it is treated as a standard-width character. This function never fails. Parameters ch The UTF-32 character. Returns 1 if the character is fullwidth, 0 otherwise. Referenced by caca_put_char(), and caca_put_str().
AuthorGenerated automatically by Doxygen for libcaca from the source code. 0
Johanes Gumabo
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