uconvert - High level string encoding conversion wrapper. Allegro game
programming library.
#include <allegro.h>
char *uconvert(const char *s, int type, char *buf, int
newtype, int size);
Higher level function running on top of do_uconvert(). This function converts
the specified string `s' from `type' to `newtype', storing at most `size'
bytes into the output `buf' (including the terminating null character), but it
checks before doing the conversion, and doesn't bother if the string formats
are already the same (either both types are equal, or one is ASCII, the other
is UTF-8, and the string contains only 7-bit ASCII characters).
As a convenience, if `buf' is NULL it will convert the string into
an internal static buffer and the `size' parameter will be ignored. You
should be wary of using this feature, though, because that buffer will be
overwritten the next time this routine is called, so don't expect the data
to persist across any other library calls. The static buffer may hold less
than 1024 characters, so you won't be able to convert large chunks of text.
Example:
char *p = uconvert(input_string, U_CURRENT, buffer, U_ASCII, 256);
Returns a pointer to `buf' (or the static buffer if you used NULL) if a
conversion was performed. Otherwise returns a copy of `s'. In any cases, you
should use the return value rather than assuming that the string will always
be moved to `buf'.
set_uformat(3), need_uconvert(3), uconvert(3),
uconvert_ascii(3), uconvert_toascii(3), do_uconvert(3)