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Xlc_Std.c
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1999-11-02
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/* $XConsortium: lcStd.c /main/5 1996/10/22 17:22:55 kaleb $ */
/*
* Copyright 1992, 1993 by TOSHIBA Corp.
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose and without fee is hereby granted, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of TOSHIBA not be used in advertising
* or publicity pertaining to distribution of the software without specific,
* written prior permission. TOSHIBA make no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* TOSHIBA DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
* TOSHIBA BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
* ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
* WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*
* Author: Katsuhisa Yano TOSHIBA Corp.
* mopi@osa.ilab.toshiba.co.jp
*/
#include "Xlib_private.h"
#include "XlcPubI.h"
int
_Xlcmbtowc(lcd, wstr, str, len)
XLCd lcd;
wchar_t *wstr;
char *str;
int len;
{
DBUG_ENTER("_Xlcmbtowc")
static XLCd last_lcd = NULL;
static XlcConv conv = NULL;
XPointer from, to;
int from_left, to_left;
wchar_t tmp_wc;
if (lcd == NULL) {
lcd = _XlcCurrentLC();
if (lcd == NULL)
DBUG_RETURN(-1);
}
if (str == NULL) {
int result = XLC_PUBLIC(lcd, is_state_depend);
DBUG_RETURN(result);
}
if (conv && lcd != last_lcd) {
_XlcCloseConverter(conv);
conv = NULL;
}
last_lcd = lcd;
if (conv == NULL) {
conv = _XlcOpenConverter(lcd, XlcNMultiByte, lcd, XlcNWideChar);
if (conv == NULL)
DBUG_RETURN(-1);
}
from = (XPointer) str;
from_left = len;
to = (XPointer) (wstr ? wstr : &tmp_wc);
to_left = 1;
if (_XlcConvert(conv, &from, &from_left, &to, &to_left, NULL, 0) < 0)
DBUG_RETURN(-1);
DBUG_RETURN(len - from_left);
}
int
_Xlcwctomb(lcd, str, wc)
XLCd lcd;
char *str;
wchar_t wc;
{
DBUG_ENTER("_Xlcwctomb")
static XLCd last_lcd = NULL;
static XlcConv conv = NULL;
XPointer from, to;
int from_left, to_left, length;
if (lcd == NULL) {
lcd = _XlcCurrentLC();
if (lcd == NULL)
DBUG_RETURN(-1);
}
if (str == NULL) {
int result = XLC_PUBLIC(lcd, is_state_depend);
DBUG_RETURN(result);
}
if (conv && lcd != last_lcd) {
_XlcCloseConverter(conv);
conv = NULL;
}
last_lcd = lcd;
if (conv == NULL) {
conv = _XlcOpenConverter(lcd, XlcNWideChar, lcd, XlcNMultiByte);
if (conv == NULL)
DBUG_RETURN(-1);
}
from = (XPointer) &wc;
from_left = 1;
to = (XPointer) str;
length = to_left = XLC_PUBLIC(lcd, mb_cur_max);
if (_XlcConvert(conv, &from, &from_left, &to, &to_left, NULL, 0) < 0)
DBUG_RETURN(-1);
DBUG_RETURN(length - to_left);
}
int
_Xlcmbstowcs(lcd, wstr, str, len)
XLCd lcd;
wchar_t *wstr;
char *str;
int len;
{
DBUG_ENTER("_Xlcmbstowcs")
XlcConv conv;
XPointer from, to;
int from_left, to_left, ret;
if (lcd == NULL) {
lcd = _XlcCurrentLC();
if (lcd == NULL)
DBUG_RETURN(-1);
}
conv = _XlcOpenConverter(lcd, XlcNMultiByte, lcd, XlcNWideChar);
if (conv == NULL)
DBUG_RETURN(-1);
from = (XPointer) str;
from_left = strlen(str);
to = (XPointer) wstr;
to_left = len;
if (_XlcConvert(conv, &from, &from_left, &to, &to_left, NULL, 0) < 0)
ret = -1;
else {
ret = len - to_left;
if (wstr && to_left > 0)
wstr[ret] = (wchar_t) 0;
}
_XlcCloseConverter(conv);
DBUG_RETURN(ret);
}
int
_Xlcwcstombs(lcd, str, wstr, len)
XLCd lcd;
char *str;
wchar_t *wstr;
int len;
{
DBUG_ENTER("_Xlcwcstombs")
XlcConv conv;
XPointer from, to;
int from_left, to_left, ret;
if (lcd == NULL) {
lcd = _XlcCurrentLC();
if (lcd == NULL)
DBUG_RETURN(-1);
}
conv = _XlcOpenConverter(lcd, XlcNWideChar, lcd, XlcNMultiByte);
if (conv == NULL)
DBUG_RETURN(-1);
from = (XPointer) wstr;
from_left = _Xwcslen(wstr);
to = (XPointer) str;
to_left = len;
if (_XlcConvert(conv, &from, &from_left, &to, &to_left, NULL, 0) < 0)
ret = -1;
else {
ret = len - to_left;
if (str && to_left > 0)
str[ret] = '\0';
}
_XlcCloseConverter(conv);
DBUG_RETURN(ret);
}
int
_Xmbtowc(wstr, str, len)
wchar_t *wstr;
#ifdef ISC
char const *str;
size_t len;
#else
char *str;
int len;
#endif
{
DBUG_ENTER("_Xmbtowc")
int result = _Xlcmbtowc((XLCd) NULL, wstr, str, len);
DBUG_RETURN(result);
}
int
_Xmblen(str, len)
#ifdef ISC
char const *str;
size_t len;
#else
char *str;
int len;
#endif
{
DBUG_ENTER("_Xmblen")
int result = _Xmbtowc((wchar_t *) NULL, str, len);
DBUG_RETURN(result);
}
int
_Xwctomb(str, wc)
char *str;
wchar_t wc;
{
DBUG_ENTER("_Xwctombs")
int result = _Xlcwctomb((XLCd) NULL, str, wc);
DBUG_RETURN(result);
}
int
_Xmbstowcs(wstr, str, len)
wchar_t *wstr;
char *str;
int len;
{
DBUG_ENTER("_Xmbstowcs")
int result = _Xlcmbstowcs((XLCd) NULL, wstr, str, len);
DBUG_RETURN(result);
}
int
_Xwcstombs(str, wstr, len)
char *str;
wchar_t *wstr;
int len;
{
DBUG_ENTER("_Xwcstombs")
int result = _Xlcwcstombs((XLCd) NULL, str, wstr, len);
DBUG_RETURN(result);
}
wchar_t *
_Xwcscpy(wstr1, wstr2)
register wchar_t *wstr1, *wstr2;
{
DBUG_ENTER("_Xwcscpy")
wchar_t *wstr_tmp = wstr1;
while (*wstr1++ = *wstr2++)
;
DBUG_RETURN(wstr_tmp);
}
wchar_t *
_Xwcsncpy(wstr1, wstr2, len)
register wchar_t *wstr1, *wstr2;
register int len;
{
DBUG_ENTER("_Xwcsncpy")
wchar_t *wstr_tmp = wstr1;
while (len-- > 0)
if (!(*wstr1++ = *wstr2++))
break;
while (len-- > 0)
*wstr1++ = (wchar_t) 0;
DBUG_RETURN(wstr_tmp);
}
int
_Xwcslen(wstr)
register wchar_t *wstr;
{
DBUG_ENTER("_Xwcslen")
register wchar_t *wstr_ptr = wstr;
while (*wstr_ptr)
wstr_ptr++;
DBUG_RETURN(wstr_ptr - wstr);
}
int
_Xwcscmp(wstr1, wstr2)
register wchar_t *wstr1, *wstr2;
{
DBUG_ENTER("_Xwcscmp")
for ( ; *wstr1 && *wstr2; wstr1++, wstr2++)
if (*wstr1 != *wstr2)
break;
DBUG_RETURN(*wstr1 - *wstr2);
}
int
_Xwcsncmp(wstr1, wstr2, len)
register wchar_t *wstr1, *wstr2;
register int len;
{
DBUG_ENTER("_Xwcsncmp")
for ( ; *wstr1 && *wstr2 && len > 0; wstr1++, wstr2++, len--)
if (*wstr1 != *wstr2)
break;
if (len <= 0)
DBUG_RETURN(0);
DBUG_RETURN(*wstr1 - *wstr2);
}