Mercurial > gnulib
view lib/wcsspn-impl.h @ 40057:b06060465f09
maint: Run 'make update-copyright'
author | Paul Eggert <eggert@cs.ucla.edu> |
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date | Tue, 01 Jan 2019 00:25:11 +0100 |
parents | 10eb9086bea0 |
children |
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/* Advance in a wide string, skipping any of a set of wide characters. Copyright (C) 1999, 2011-2019 Free Software Foundation, Inc. Written by Bruno Haible <bruno@clisp.org>, 1999. This program 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. This program 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 this program. If not, see <https://www.gnu.org/licenses/>. */ size_t wcsspn (const wchar_t *wcs, const wchar_t *accept) { /* Optimize two cases. */ if (accept[0] == (wchar_t)'\0') return 0; if (accept[1] == (wchar_t)'\0') { wchar_t wc = accept[0]; const wchar_t *ptr = wcs; for (; *ptr != (wchar_t)'\0'; ptr++) { if (*ptr != wc) break; } return ptr - wcs; } /* General case. */ { const wchar_t *ptr = wcs; for (; *ptr != (wchar_t)'\0'; ptr++) { if (!wcschr (accept, *ptr)) break; } return ptr - wcs; } }