Mercurial > gnulib
view lib/wcsspn-impl.h @ 40198:5a34193cbc07
long-options: add parse_gnu_standard_options_only
Discussed in https://bugs.gnu.org/33468 .
* lib/long-options.c (parse_long_options): Use EXIT_SUCCESS instead
of 0.
(parse_gnu_standard_options_only): Add function to
process the GNU default options --help and --version and fail for any other
unknown long or short option. See
https://gnu.org/prep/standards/html_node/Command_002dLine-Interfaces.html .
* lib/long-options.h (parse_gnu_standard_options_only): Declare it.
* modules/long-options (depends-on): Add stdbool, exitfail.
* top/maint.mk (sc_prohibit_long_options_without_use): Update
syntax-check rule, add new function name.
author | Bernhard Voelker <mail@bernhard-voelker.de> |
---|---|
date | Thu, 29 Nov 2018 09:06:26 +0100 |
parents | b06060465f09 |
children |
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line source
/* 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; } }