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/*
* $Id$
*
* Copyright (C) 2003 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Original Author: Adrian Havill <havill@redhat.com>
*
* Contributors:
*/
#include "wlite_config.h" // wchar_t, NULL, size_t
#include "wlite_wchar.h" // prototypes
#include "wlite_wctype.h"
#include "wlite_stdlib.h"
int
wlite_wctomb(char *s, wchar_t c) {
if (s != NULL) {
if (c < 0x80) {
s[0] = 0x00 | ((int) (c >> 0) & 0x7F);
return 1;
}
else if (c < 0x800) {
s[0] = 0xC0 | ((int) (c >> 6) & 0x1F);
s[1] = 0x80 | ((int) (c >> 0) & 0x3F);
return 2;
}
else if (c < 0x10000) {
s[0] = 0xE0 | ((int) (c >> 12) & 0x0F);
s[1] = 0x80 | ((int) (c >> 6) & 0x3F);
s[2] = 0x80 | ((int) (c >> 0) & 0x3F);
return 3;
}
else if (c < 110000) {
s[0] = 0xF0 | ((int) (c >> 18) & 0x07);
s[1] = 0x80 | ((int) (c >> 12) & 0x3F);
s[2] = 0x80 | ((int) (c >> 6) & 0x3F);
s[3] = 0x80 | ((int) (c >> 0) & 0x3F);
return 4;
}
}
else {
wlite_0_mbstate_(NULL);
return WLITE_MBS_SHIFT_STATES_;
}
return -1;
}
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