int
_Xlcmbtowc(
XLCd lcd,
wchar_t *wstr,
char *str,
int len)
{
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)
return -1;
}
if (str == NULL)
return XLC_PUBLIC(lcd, is_state_depend);
if (conv && lcd != last_lcd) {
_XlcCloseConverter(conv);
conv = NULL;
}
last_lcd = lcd;
if (conv == NULL) {
conv = _XlcOpenConverter(lcd, XlcNMultiByte, lcd, XlcNWideChar);
if (conv == NULL)
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)
return -1;
return (len - from_left);
}
int
_Xlcwctomb(
XLCd lcd,
char *str,
wchar_t wc)
{
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)
return -1;
}
if (str == NULL)
return XLC_PUBLIC(lcd, is_state_depend);
if (conv && lcd != last_lcd) {
_XlcCloseConverter(conv);
conv = NULL;
}
last_lcd = lcd;
if (conv == NULL) {
conv = _XlcOpenConverter(lcd, XlcNWideChar, lcd, XlcNMultiByte);
if (conv == NULL)
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)
return -1;
return (length - to_left);
}
/* Transforms one multibyte character, and return a 'char' in the same
parsing class. Returns the number of consumed bytes in *lenp. */
static char
mb_mbchar(
XPointer state,
const char *str,
int *lenp)
{
XlcConv conv = ((MbState) state)->conv;
const char *from;
wchar_t *to, wc;
int cur_max, i, from_left, to_left, ret;
cur_max = XLC_PUBLIC(((MbState) state)->lcd, mb_cur_max);
from = str;
/* Determine from_left. Avoid overrun error which could occur if
from_left > strlen(str). */
from_left = cur_max;
for (i = 0; i < cur_max; i++)
if (str[i] == '\0') {
from_left = i;
break;
}
*lenp = from_left;
to = &wc;
to_left = 1;
ret = _XlcConvert(conv, (XPointer *) &from, &from_left,
(XPointer *) &to, &to_left, NULL, 0);
*lenp -= from_left;
if (ret < 0 || to_left > 0) {
/* Invalid or incomplete multibyte character seen. */
*lenp = 1;
return 0x7f;
}
/* Return a 'char' equivalent to wc. */
return (wc >= 0 && wc <= 0x7f ? wc : 0x7f);
}
int
_Xlcmbstoutf8(
XLCd lcd,
char *ustr,
const char *str,
int len)
{
XlcConv conv;
XPointer from, to;
int from_left, to_left, ret;
if (lcd == NULL) {
lcd = _XlcCurrentLC();
if (lcd == NULL)
return -1;
}
conv = _XlcOpenConverter(lcd, XlcNMultiByte, lcd, XlcNUtf8String);
if (conv == NULL)
return -1;
from = (XPointer) str;
from_left = strlen(str);
to = (XPointer) ustr;
to_left = len;
if (_XlcConvert(conv, &from, &from_left, &to, &to_left, NULL, 0) < 0)
ret = -1;
else {
ret = len - to_left;
if (ustr && to_left > 0)
ustr[ret] = '\0';
}
_XlcCloseConverter(conv);
return ret;
}
int
_Xlcwcstombs(
XLCd lcd,
char *str,
wchar_t *wstr,
int len)
{
XlcConv conv;
XPointer from, to;
int from_left, to_left, ret;
if (lcd == NULL) {
lcd = _XlcCurrentLC();
if (lcd == NULL)
return -1;
}
conv = _XlcOpenConverter(lcd, XlcNWideChar, lcd, XlcNMultiByte);
if (conv == NULL)
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);
return ret;
}
static int
_XTextPropertyToTextList(
XLCd lcd,
Display *dpy,
const XTextProperty *text_prop,
const char *to_type,
XPointer **list_ret,
int *count_ret)
{
XlcConv conv = NULL;
const char *from_type;
XPointer from, to, buf;
char *str_ptr, *last_ptr;
Atom encoding;
int from_left, to_left, buf_len, ret, len;
int unconv_num, nitems = text_prop->nitems;
Bool is_wide_char = False, do_strcpy = False;
if (strcmp(XlcNWideChar, to_type) == 0)
is_wide_char = True;
if (nitems <= 0) {
*list_ret = NULL;
*count_ret = 0;
return Success;
}
if (text_prop->format != 8)
return XConverterNotFound;
encoding = text_prop->encoding;
if (encoding == XA_STRING)
from_type = XlcNString;
else if (encoding == XInternAtom(dpy, "UTF8_STRING", False))
from_type = XlcNUtf8String;
else if (encoding == XInternAtom(dpy, "COMPOUND_TEXT", False))
from_type = XlcNCompoundText;
else if (encoding == XInternAtom(dpy, XLC_PUBLIC(lcd, encoding_name), False))
from_type = XlcNMultiByte;
else
return XConverterNotFound;
if (is_wide_char) {
buf_len = (text_prop->nitems + 1) * sizeof(wchar_t);
} else {
if (strcmp(to_type, XlcNUtf8String) == 0)
buf_len = text_prop->nitems * 6 + 1;
else
buf_len = text_prop->nitems * XLC_PUBLIC(lcd, mb_cur_max) + 1;
}
buf = Xmalloc(buf_len);
if (buf == NULL)
return XNoMemory;
to = buf;
to_left = buf_len;
/* can be XlcNMultiByte to XlcNMultiByte,
or XlcNUtf8String to XlcNUtf8String */
if (!strcmp(from_type, to_type)) {
do_strcpy = True;
} else {
conv = _XlcOpenConverter(lcd, from_type, lcd, to_type);
if (conv == NULL) {
Xfree(buf);
return XConverterNotFound;
}
}
last_ptr = str_ptr = (char *) text_prop->value;
unconv_num = *count_ret = 0;
while (1) {
if (nitems == 0 || *str_ptr == 0) {
from = (XPointer) last_ptr;
from_left = str_ptr - last_ptr;
last_ptr = str_ptr;
if (do_strcpy) {
len = min(from_left, to_left);
strncpy(to, from, len);
from += len;
to += len;
from_left -= len;
to_left -= len;
ret = 0;
} else {
ret = _XlcConvert(conv, &from, &from_left, &to, &to_left, NULL, 0);
}
if (ret < 0)
continue;
unconv_num += ret;
(*count_ret)++;
if (nitems == 0)
break;
last_ptr = ++str_ptr;
if (is_wide_char) {
*((wchar_t *)to) = (wchar_t) 0;
to += sizeof(wchar_t);
to_left -= sizeof(wchar_t);
} else {
*((char *)to) = '\0';
to++;
to_left--;
}
if (! do_strcpy)
_XlcResetConverter(conv);
} else
str_ptr++;
nitems--;
}
if (! do_strcpy)
_XlcCloseConverter(conv);
if (is_wide_char) {
*((wchar_t *) to) = (wchar_t) 0;
to_left -= sizeof(wchar_t);
} else {
*((char *) to) = '\0';
to_left--;
}
*list_ret = alloc_list(is_wide_char, *count_ret, buf_len - to_left);
if (*list_ret)
copy_list(is_wide_char, buf, *list_ret, *count_ret);
Xfree(buf);
return unconv_num;
}
