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/* Utility to help print --version output in a consistent format.
Copyright (C) 1999-2007 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 2, 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, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
/* Written by Jim Meyering. */
#include <config.h>
/* Specification. */
#include "version-etc.h"
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#if USE_UNLOCKED_IO
# include "unlocked-io.h"
#endif
#include "gettext.h"
#define _(msgid) gettext (msgid)
enum { COPYRIGHT_YEAR = 2007 };
/* Like version_etc, below, but with the NULL-terminated author list
provided via a variable of type va_list. */
void
version_etc_va (FILE *stream,
const char *command_name, const char *package,
const char *version, va_list authors)
{
size_t n_authors;
/* Count the number of authors. */
{
va_list tmp_authors;
va_copy (tmp_authors, authors);
n_authors = 0;
while (va_arg (tmp_authors, const char *) != NULL)
++n_authors;
}
if (command_name)
fprintf (stream, "%s (%s) %s\n", command_name, package, version);
else
fprintf (stream, "%s %s\n", package, version);
/* TRANSLATORS: Translate "(C)" to the copyright symbol
(C-in-a-circle), if this symbol is available in the user's
locale. Otherwise, do not translate "(C)"; leave it as-is. */
fprintf (stream, version_etc_copyright, _("(C)"), COPYRIGHT_YEAR);
fputs (_("\
\n\
License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html>\n\
This is free software: you are free to change and redistribute it.\n\
There is NO WARRANTY, to the extent permitted by law.\n\
\n\
"),
stream);
switch (n_authors)
{
case 0:
/* The caller must provide at least one author name. */
abort ();
case 1:
/* TRANSLATORS: %s denotes an author name. */
vfprintf (stream, _("Written by %s.\n"), authors);
break;
case 2:
/* TRANSLATORS: Each %s denotes an author name. */
vfprintf (stream, _("Written by %s and %s.\n"), authors);
break;
case 3:
/* TRANSLATORS: Each %s denotes an author name. */
vfprintf (stream, _("Written by %s, %s, and %s.\n"), authors);
break;
case 4:
/* TRANSLATORS: Each %s denotes an author name.
You can use line breaks, estimating that each author name occupies
ca. 16 screen columns and that a screen line has ca. 80 columns. */
vfprintf (stream, _("Written by %s, %s, %s,\nand %s.\n"), authors);
break;
case 5:
/* TRANSLATORS: Each %s denotes an author name.
You can use line breaks, estimating that each author name occupies
ca. 16 screen columns and that a screen line has ca. 80 columns. */
vfprintf (stream, _("Written by %s, %s, %s,\n%s, and %s.\n"), authors);
break;
case 6:
/* TRANSLATORS: Each %s denotes an author name.
You can use line breaks, estimating that each author name occupies
ca. 16 screen columns and that a screen line has ca. 80 columns. */
vfprintf (stream, _("Written by %s, %s, %s,\n%s, %s, and %s.\n"),
authors);
break;
case 7:
/* TRANSLATORS: Each %s denotes an author name.
You can use line breaks, estimating that each author name occupies
ca. 16 screen columns and that a screen line has ca. 80 columns. */
vfprintf (stream, _("Written by %s, %s, %s,\n%s, %s, %s, and %s.\n"),
authors);
break;
case 8:
/* TRANSLATORS: Each %s denotes an author name.
You can use line breaks, estimating that each author name occupies
ca. 16 screen columns and that a screen line has ca. 80 columns. */
vfprintf (stream, _("\
Written by %s, %s, %s,\n%s, %s, %s, %s,\nand %s.\n"),
authors);
break;
case 9:
/* TRANSLATORS: Each %s denotes an author name.
You can use line breaks, estimating that each author name occupies
ca. 16 screen columns and that a screen line has ca. 80 columns. */
vfprintf (stream, _("\
Written by %s, %s, %s,\n%s, %s, %s, %s,\n%s, and %s.\n"),
authors);
break;
default:
/* 10 or more authors. Use an abbreviation, since the human reader
will probably not want to read the entire list anyway. */
/* TRANSLATORS: Each %s denotes an author name.
You can use line breaks, estimating that each author name occupies
ca. 16 screen columns and that a screen line has ca. 80 columns. */
vfprintf (stream, _("\
Written by %s, %s, %s,\n%s, %s, %s, %s,\n%s, %s, and others.\n"),
authors);
break;
}
va_end (authors);
}
/* Display the --version information the standard way.
If COMMAND_NAME is NULL, the PACKAGE is asumed to be the name of
the program. The formats are therefore:
PACKAGE VERSION
or
COMMAND_NAME (PACKAGE) VERSION.
The author names are passed as separate arguments, with an additional
NULL argument at the end. */
void
version_etc (FILE *stream,
const char *command_name, const char *package,
const char *version, /* const char *author1, ...*/ ...)
{
va_list authors;
va_start (authors, version);
version_etc_va (stream, command_name, package, version, authors);
}
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