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/* wcswidth.c - compute display width of wide character string */
/* Copyright (C) 2010 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
Bash is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Bash 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with Bash. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#if defined (HANDLE_MULTIBYTE) && !defined (HAVE_WCSWIDTH)
#include <stdc.h>
#include <wchar.h>
#include <bashansi.h>
int
wcswidth(pwcs, n)
const wchar_t *pwcs;
size_t n;
{
wchar_t wc;
int len, l;
len = 0;
while (n-- > 0 && (wc = *pwcs++) != L'\0')
{
if ((l = wcwidth(wc)) < 0)
return (-1);
len += l;
}
return (len);
}
#endif
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