mirror of https://github.com/n-hys/bash.git
47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
/* wcswidth.c - compute display width of wide character string */
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/* Copyright (C) 2010 Free Software Foundation, Inc.
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This file is part of GNU Bash, the Bourne Again SHell.
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Bash is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Bash is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Bash. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#if defined (HANDLE_MULTIBYTE) && !defined (HAVE_WCSWIDTH)
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#include <stdc.h>
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#include <wchar.h>
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#include <bashansi.h>
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int
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wcswidth(pwcs, n)
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const wchar_t *pwcs;
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size_t n;
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{
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wchar_t wc;
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int len, l;
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len = 0;
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while (n-- > 0 && (wc = *pwcs++) != L'\0')
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{
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if ((l = wcwidth(wc)) < 0)
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return (-1);
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len += l;
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}
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return (len);
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}
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#endif
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