lib/version-etc.c

   1 /* Print --version and bug-reporting information in a consistent format.
   2    Copyright (C) 1999-2009 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU Lesser General Public License as published by
   6    the Free Software Foundation; either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public License
  15    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  16
  17 /* Written by Jim Meyering. */
  18
  19 #include <config.h>
  20
  21 /* Specification.  */
  22 #include "version-etc.h"
  23
  24 #include <stdarg.h>
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27
  28 #if USE_UNLOCKED_IO
  29 # include "unlocked-io.h"
  30 #endif
  31
  32 #include "gettext.h"
  33 #define _(msgid) gettext (msgid)
  34
  35 enum { COPYRIGHT_YEAR = 2009 };
  36
  37 /* The three functions below display the --version information the
  38    standard way.
  39
  40    If COMMAND_NAME is NULL, the PACKAGE is assumed to be the name of
  41    the program.  The formats are therefore:
  42
  43    PACKAGE VERSION
  44
  45    or
  46
  47    COMMAND_NAME (PACKAGE) VERSION.
  48
  49    The functions differ in the way they are passed author names. */
  50
  51 /* Display the --version information the standard way.
  52
  53    Author names are given in the array AUTHORS. N_AUTHORS is the
  54    number of elements in the array. */
  55 void
  56 version_etc_arn (FILE *stream,
  57                  const char *command_name, const char *package,
  58                  const char *version,
  59                  const char * const * authors, size_t n_authors)
  60 {
  61   if (command_name)
  62     fprintf (stream, "%s (%s) %s\n", command_name, package, version);
  63   else
  64     fprintf (stream, "%s %s\n", package, version);
  65
  66 #ifdef PACKAGE_PACKAGER
  67 # ifdef PACKAGE_PACKAGER_VERSION
  68   fprintf (stream, _("Packaged by %s (%s)\n"), PACKAGE_PACKAGER,
  69            PACKAGE_PACKAGER_VERSION);
  70 # else
  71   fprintf (stream, _("Packaged by %s\n"), PACKAGE_PACKAGER);
  72 # endif
  73 #endif
  74
  75   /* TRANSLATORS: Translate "(C)" to the copyright symbol
  76      (C-in-a-circle), if this symbol is available in the user's
  77      locale.  Otherwise, do not translate "(C)"; leave it as-is.  */
  78   fprintf (stream, version_etc_copyright, _("(C)"), COPYRIGHT_YEAR);
  79
  80   fputs (_("\
  81 \n\
  82 License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.\n\
  83 This is free software: you are free to change and redistribute it.\n\
  84 There is NO WARRANTY, to the extent permitted by law.\n\
  85 \n\
  86 "),
  87          stream);
  88
  89   switch (n_authors)
  90     {
  91     case 0:
  92       /* The caller must provide at least one author name.  */
  93       abort ();
  94     case 1:
  95       /* TRANSLATORS: %s denotes an author name.  */
  96       fprintf (stream, _("Written by %s.\n"), authors[0]);
  97       break;
  98     case 2:
  99       /* TRANSLATORS: Each %s denotes an author name.  */
 100       fprintf (stream, _("Written by %s and %s.\n"), authors[0], authors[1]);
 101       break;
 102     case 3:
 103       /* TRANSLATORS: Each %s denotes an author name.  */
 104       fprintf (stream, _("Written by %s, %s, and %s.\n"),
 105                authors[0], authors[1], authors[2]);
 106       break;
 107     case 4:
 108       /* TRANSLATORS: Each %s denotes an author name.
 109          You can use line breaks, estimating that each author name occupies
 110          ca. 16 screen columns and that a screen line has ca. 80 columns.  */
 111       fprintf (stream, _("Written by %s, %s, %s,\nand %s.\n"),
 112                authors[0], authors[1], authors[2], authors[3]);
 113       break;
 114     case 5:
 115       /* TRANSLATORS: Each %s denotes an author name.
 116          You can use line breaks, estimating that each author name occupies
 117          ca. 16 screen columns and that a screen line has ca. 80 columns.  */
 118       fprintf (stream, _("Written by %s, %s, %s,\n%s, and %s.\n"),
 119                authors[0], authors[1], authors[2], authors[3], authors[4]);
 120       break;
 121     case 6:
 122       /* TRANSLATORS: Each %s denotes an author name.
 123          You can use line breaks, estimating that each author name occupies
 124          ca. 16 screen columns and that a screen line has ca. 80 columns.  */
 125       fprintf (stream, _("Written by %s, %s, %s,\n%s, %s, and %s.\n"),
 126                authors[0], authors[1], authors[2], authors[3], authors[4],
 127                authors[5]);
 128       break;
 129     case 7:
 130       /* TRANSLATORS: Each %s denotes an author name.
 131          You can use line breaks, estimating that each author name occupies
 132          ca. 16 screen columns and that a screen line has ca. 80 columns.  */
 133       fprintf (stream, _("Written by %s, %s, %s,\n%s, %s, %s, and %s.\n"),
 134                authors[0], authors[1], authors[2], authors[3], authors[4],
 135                authors[5], authors[6]);
 136       break;
 137     case 8:
 138       /* TRANSLATORS: Each %s denotes an author name.
 139          You can use line breaks, estimating that each author name occupies
 140          ca. 16 screen columns and that a screen line has ca. 80 columns.  */
 141       fprintf (stream, _("\
 142 Written by %s, %s, %s,\n%s, %s, %s, %s,\nand %s.\n"),
 143                 authors[0], authors[1], authors[2], authors[3], authors[4],
 144                 authors[5], authors[6], authors[7]);
 145       break;
 146     case 9:
 147       /* TRANSLATORS: Each %s denotes an author name.
 148          You can use line breaks, estimating that each author name occupies
 149          ca. 16 screen columns and that a screen line has ca. 80 columns.  */
 150       fprintf (stream, _("\
 151 Written by %s, %s, %s,\n%s, %s, %s, %s,\n%s, and %s.\n"),
 152                authors[0], authors[1], authors[2], authors[3], authors[4],
 153                authors[5], authors[6], authors[7], authors[8]);
 154       break;
 155     default:
 156       /* 10 or more authors.  Use an abbreviation, since the human reader
 157          will probably not want to read the entire list anyway.  */
 158       /* TRANSLATORS: Each %s denotes an author name.
 159          You can use line breaks, estimating that each author name occupies
 160          ca. 16 screen columns and that a screen line has ca. 80 columns.  */
 161       fprintf (stream, _("\
 162 Written by %s, %s, %s,\n%s, %s, %s, %s,\n%s, %s, and others.\n"),
 163                 authors[0], authors[1], authors[2], authors[3], authors[4],
 164                 authors[5], authors[6], authors[7], authors[8]);
 165       break;
 166     }
 167 }
 168
 169 /* Display the --version information the standard way.  See the initial
 170    comment to this module, for more information.
 171
 172    Author names are given in the NULL-terminated array AUTHORS. */
 173 void
 174 version_etc_ar (FILE *stream,
 175                 const char *command_name, const char *package,
 176                 const char *version, const char * const * authors)
 177 {
 178   size_t n_authors;
 179
 180   for (n_authors = 0; authors[n_authors]; n_authors++)
 181     ;
 182   version_etc_arn (stream, command_name, package, version, authors, n_authors);
 183 }
 184
 185 /* Display the --version information the standard way.  See the initial
 186    comment to this module, for more information.
 187
 188    Author names are given in the NULL-terminated va_list AUTHORS. */
 189 void
 190 version_etc_va (FILE *stream,
 191                 const char *command_name, const char *package,
 192                 const char *version, va_list authors)
 193 {
 194   size_t n_authors;
 195   const char *authtab[10];
 196
 197   for (n_authors = 0;
 198        n_authors < 10
 199          && (authtab[n_authors] = va_arg (authors, const char *)) != NULL;
 200        n_authors++)
 201     ;
 202   version_etc_arn (stream, command_name, package, version,
 203                    authtab, n_authors);
 204 }
 205
 206
 207 /* Display the --version information the standard way.
 208
 209    If COMMAND_NAME is NULL, the PACKAGE is assumed to be the name of
 210    the program.  The formats are therefore:
 211
 212    PACKAGE VERSION
 213
 214    or
 215
 216    COMMAND_NAME (PACKAGE) VERSION.
 217
 218    The authors names are passed as separate arguments, with an additional
 219    NULL argument at the end.  */
 220 void
 221 version_etc (FILE *stream,
 222              const char *command_name, const char *package,
 223              const char *version, /* const char *author1, ...*/ ...)
 224 {
 225   va_list authors;
 226
 227   va_start (authors, version);
 228   version_etc_va (stream, command_name, package, version, authors);
 229   va_end (authors);
 230 }
 231
 232 void
 233 emit_bug_reporting_address (void)
 234 {
 235   /* TRANSLATORS: The placeholder indicates the bug-reporting address
 236      for this package.  Please add _another line_ saying
 237      "Report translation bugs to <...>\n" with the address for translation
 238      bugs (typically your translation team's web or email address).  */
 239   printf (_("\nReport bugs to: %s\n"), PACKAGE_BUGREPORT);
 240 #ifdef PACKAGE_PACKAGER_BUG_REPORTS
 241   printf (_("Report %s bugs to: %s\n"), PACKAGE_PACKAGER,
 242           PACKAGE_PACKAGER_BUG_REPORTS);
 243 #endif
 244 #ifdef PACKAGE_URL
 245   printf (_("%s home page: <%s>\n"), PACKAGE_NAME, PACKAGE_URL);
 246 #else
 247   printf (_("%s home page: <http://www.gnu.org/software/%s/>\n"),
 248           PACKAGE_NAME, PACKAGE_TARNAME);
 249 #endif
 250   fputs (_("General help using GNU software: <http://www.gnu.org/gethelp/>\n"),
 251          stdout);
 252 }