Mercurial > gnulib
view lib/mbswidth.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
/* Determine the number of screen columns needed for a string. Copyright (C) 2000-2004, 2007, 2009-2019 Free Software Foundation, Inc. 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/>. */ #include <stddef.h> /* Avoid a clash of our mbswidth() with a function of the same name defined in UnixWare 7.1.1 <wchar.h>. We need this #include before the #define below. However, we don't want to #include <wchar.h> on all platforms because - Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before <wchar.h>. - BSD/OS 4.1 has a bug: <stdio.h> and <time.h> must be included before <wchar.h>. */ #if HAVE_DECL_MBSWIDTH_IN_WCHAR_H # include <wchar.h> #endif #ifdef __cplusplus extern "C" { #endif /* Optional flags to influence mbswidth/mbsnwidth behavior. */ /* If this bit is set, return -1 upon finding an invalid or incomplete character. Otherwise, assume invalid characters have width 1. */ #define MBSW_REJECT_INVALID 1 /* If this bit is set, return -1 upon finding a non-printable character. Otherwise, assume unprintable characters have width 0 if they are control characters and 1 otherwise. */ #define MBSW_REJECT_UNPRINTABLE 2 /* Returns the number of screen columns needed for STRING. */ #define mbswidth gnu_mbswidth /* avoid clash with UnixWare 7.1.1 function */ extern int mbswidth (const char *string, int flags); /* Returns the number of screen columns needed for the NBYTES bytes starting at BUF. */ extern int mbsnwidth (const char *buf, size_t nbytes, int flags); #ifdef __cplusplus } #endif