NAME¶
RkCvtHan , RkwCvtHan - convert double-width symbols, alphanumeric characters,
hiragana, and katakana to single-width characters
SYNOPSIS¶
#include <canna/RK.h>
int RkCvtHan(dst, maxdst, src, srclen)
unsigned char *dst;
int maxdst;
unsigned char *src;
int srclen;
int RkwCvtHan(dst, maxdst, src, srclen)
wchar_t *dst;
int maxdst;
wchar_t *src;
int srclen;
DESCRIPTION¶
RkCvtHan converts the
srclen bytes of double-width symbol,
alphanumeric characters, hiragana, and katakana data to single-width
characters, starting at the area
src. A null character in
src is
not interpreted as the end of the string. The conversion result is stored in
the area
dst. Characters that are not subject to conversion are copied
as they are. The conversion result is truncated to adjust to character
boundaries in the EUC code when its byte length exceeds
maxdst -1.
dst is padded with null characters at the end if possible. EUC code is
used to represent both
src and
dst.
RkwCvtHan is the wchar_t version of
RkCvtHan. Arguments which
specify the length are regarded as they count the character length instead of
byte length.
NULL can be specified in
dst. NULL overrides the entire conversion
result.
RETURN VALUE¶
This function returns the byte length (or character length for RkwCvtHan) of the
conversion result, or returns 0 if the value of
maxdst is
invalid.