gnu/dist/gettext/gettext-tools/src/msgconv.c

   1 /* Converts a translation catalog to a different character encoding.
   2    Copyright (C) 2001-2005 Free Software Foundation, Inc.
   3    Written by Bruno Haible <haible@clisp.cons.org>, 2001.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 2, or (at your option)
   8    any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to the Free Software Foundation,
  17    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  18
  19
  20 #ifdef HAVE_CONFIG_H
  21 # include "config.h"
  22 #endif
  23
  24 #include <getopt.h>
  25 #include <limits.h>
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <locale.h>
  29
  30 #include "closeout.h"
  31 #include "dir-list.h"
  32 #include "error.h"
  33 #include "error-progname.h"
  34 #include "progname.h"
  35 #include "relocatable.h"
  36 #include "basename.h"
  37 #include "message.h"
  38 #include "read-po.h"
  39 #include "write-po.h"
  40 #include "msgl-iconv.h"
  41 #include "localcharset.h"
  42 #include "exit.h"
  43 #include "gettext.h"
  44
  45 #define _(str) gettext (str)
  46
  47
  48 /* Force output of PO file even if empty.  */
  49 static int force_po;
  50
  51 /* Target encoding.  */
  52 static const char *to_code;
  53
  54 /* Long options.  */
  55 static const struct option long_options[] =
  56 {
  57   { "add-location", no_argument, &line_comment, 1 },
  58   { "directory", required_argument, NULL, 'D' },
  59   { "escape", no_argument, NULL, 'E' },
  60   { "force-po", no_argument, &force_po, 1 },
  61   { "help", no_argument, NULL, 'h' },
  62   { "indent", no_argument, NULL, 'i' },
  63   { "no-escape", no_argument, NULL, 'e' },
  64   { "no-location", no_argument, &line_comment, 0 },
  65   { "no-wrap", no_argument, NULL, CHAR_MAX + 1 },
  66   { "output-file", required_argument, NULL, 'o' },
  67   { "properties-input", no_argument, NULL, 'P' },
  68   { "properties-output", no_argument, NULL, 'p' },
  69   { "sort-by-file", no_argument, NULL, 'F' },
  70   { "sort-output", no_argument, NULL, 's' },
  71   { "strict", no_argument, NULL, 'S' },
  72   { "stringtable-input", no_argument, NULL, CHAR_MAX + 2 },
  73   { "stringtable-output", no_argument, NULL, CHAR_MAX + 3 },
  74   { "to-code", required_argument, NULL, 't' },
  75   { "version", no_argument, NULL, 'V' },
  76   { "width", required_argument, NULL, 'w', },
  77   { NULL, 0, NULL, 0 }
  78 };
  79
  80
  81 /* Forward declaration of local functions.  */
  82 static void usage (int status)
  83 #if defined __GNUC__ && ((__GNUC__ == 2 && __GNUC_MINOR__ >= 5) || __GNUC__ > 2)
  84         __attribute__ ((noreturn))
  85 #endif
  86 ;
  87
  88
  89 int
  90 main (int argc, char **argv)
  91 {
  92   int opt;
  93   bool do_help;
  94   bool do_version;
  95   char *output_file;
  96   const char *input_file;
  97   msgdomain_list_ty *result;
  98   input_syntax_ty output_syntax = syntax_po;
  99   bool sort_by_filepos = false;
 100   bool sort_by_msgid = false;
 101
 102   /* Set program name for messages.  */
 103   set_program_name (argv[0]);
 104   error_print_progname = maybe_print_progname;
 105
 106 #ifdef HAVE_SETLOCALE
 107   /* Set locale via LC_ALL.  */
 108   setlocale (LC_ALL, "");
 109 #endif
 110
 111   /* Set the text message domain.  */
 112   bindtextdomain (PACKAGE, relocate (LOCALEDIR));
 113   textdomain (PACKAGE);
 114
 115   /* Ensure that write errors on stdout are detected.  */
 116   atexit (close_stdout);
 117
 118   /* Set default values for variables.  */
 119   do_help = false;
 120   do_version = false;
 121   output_file = NULL;
 122   input_file = NULL;
 123
 124   while ((opt = getopt_long (argc, argv, "D:eEFhio:pPst:Vw:", long_options,
 125                              NULL))
 126          != EOF)
 127     switch (opt)
 128       {
 129       case '\0':                /* Long option.  */
 130         break;
 131
 132       case 'D':
 133         dir_list_append (optarg);
 134         break;
 135
 136       case 'e':
 137         message_print_style_escape (false);
 138         break;
 139
 140       case 'E':
 141         message_print_style_escape (true);
 142         break;
 143
 144       case 'F':
 145         sort_by_filepos = true;
 146         break;
 147
 148       case 'h':
 149         do_help = true;
 150         break;
 151
 152       case 'i':
 153         message_print_style_indent ();
 154         break;
 155
 156       case 'o':
 157         output_file = optarg;
 158         break;
 159
 160       case 'p':
 161         message_print_syntax_properties ();
 162         output_syntax = syntax_properties;
 163         break;
 164
 165       case 'P':
 166         input_syntax = syntax_properties;
 167         break;
 168
 169       case 's':
 170         sort_by_msgid = true;
 171         break;
 172
 173       case 'S':
 174         message_print_style_uniforum ();
 175         break;
 176
 177       case 't':
 178         to_code = optarg;
 179         break;
 180
 181       case 'V':
 182         do_version = true;
 183         break;
 184
 185       case 'w':
 186         {
 187           int value;
 188           char *endp;
 189           value = strtol (optarg, &endp, 10);
 190           if (endp != optarg)
 191             message_page_width_set (value);
 192         }
 193         break;
 194
 195       case CHAR_MAX + 1: /* --no-wrap */
 196         message_page_width_ignore ();
 197         break;
 198
 199       case CHAR_MAX + 2: /* --stringtable-input */
 200         input_syntax = syntax_stringtable;
 201         break;
 202
 203       case CHAR_MAX + 3: /* --stringtable-output */
 204         message_print_syntax_stringtable ();
 205         break;
 206
 207       default:
 208         usage (EXIT_FAILURE);
 209         break;
 210       }
 211
 212   /* Version information is requested.  */
 213   if (do_version)
 214     {
 215       printf ("%s (GNU %s) %s\n", basename (program_name), PACKAGE, VERSION);
 216       /* xgettext: no-wrap */
 217       printf (_("Copyright (C) %s Free Software Foundation, Inc.\n\
 218 This is free software; see the source for copying conditions.  There is NO\n\
 219 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
 220 "),
 221               "2001-2005");
 222       printf (_("Written by %s.\n"), "Bruno Haible");
 223       exit (EXIT_SUCCESS);
 224     }
 225
 226   /* Help is requested.  */
 227   if (do_help)
 228     usage (EXIT_SUCCESS);
 229
 230   /* Test whether we have an .po file name as argument.  */
 231   if (optind == argc)
 232     input_file = "-";
 233   else if (optind + 1 == argc)
 234     input_file = argv[optind];
 235   else
 236     {
 237       error (EXIT_SUCCESS, 0, _("at most one input file allowed"));
 238       usage (EXIT_FAILURE);
 239     }
 240
 241   /* Verify selected options.  */
 242   if (!line_comment && sort_by_filepos)
 243     error (EXIT_FAILURE, 0, _("%s and %s are mutually exclusive"),
 244            "--no-location", "--sort-by-file");
 245
 246   if (sort_by_msgid && sort_by_filepos)
 247     error (EXIT_FAILURE, 0, _("%s and %s are mutually exclusive"),
 248            "--sort-output", "--sort-by-file");
 249
 250   /* Default for target encoding is current locale's encoding.  */
 251   if (to_code == NULL)
 252     to_code = locale_charset ();
 253
 254   /* Read input file.  */
 255   result = read_po_file (input_file);
 256
 257   /* Convert if and only if the output syntax supports different encodings.  */
 258   if (output_syntax != syntax_properties
 259       && output_syntax != syntax_stringtable)
 260     result = iconv_msgdomain_list (result, to_code, input_file);
 261
 262   /* Sort the results.  */
 263   if (sort_by_filepos)
 264     msgdomain_list_sort_by_filepos (result);
 265   else if (sort_by_msgid)
 266     msgdomain_list_sort_by_msgid (result);
 267
 268   /* Write the merged message list out.  */
 269   msgdomain_list_print (result, output_file, force_po, false);
 270
 271   exit (EXIT_SUCCESS);
 272 }
 273
 274
 275 /* Display usage information and exit.  */
 276 static void
 277 usage (int status)
 278 {
 279   if (status != EXIT_SUCCESS)
 280     fprintf (stderr, _("Try `%s --help' for more information.\n"),
 281              program_name);
 282   else
 283     {
 284       printf (_("\
 285 Usage: %s [OPTION] [INPUTFILE]\n\
 286 "), program_name);
 287       printf ("\n");
 288       printf (_("\
 289 Converts a translation catalog to a different character encoding.\n\
 290 "));
 291       printf ("\n");
 292       printf (_("\
 293 Mandatory arguments to long options are mandatory for short options too.\n"));
 294       printf ("\n");
 295       printf (_("\
 296 Input file location:\n"));
 297       printf (_("\
 298   INPUTFILE                   input PO file\n"));
 299       printf (_("\
 300   -D, --directory=DIRECTORY   add DIRECTORY to list for input files search\n"));
 301       printf (_("\
 302 If no input file is given or if it is -, standard input is read.\n"));
 303       printf ("\n");
 304       printf (_("\
 305 Output file location:\n"));
 306       printf (_("\
 307   -o, --output-file=FILE      write output to specified file\n"));
 308       printf (_("\
 309 The results are written to standard output if no output file is specified\n\
 310 or if it is -.\n"));
 311       printf ("\n");
 312       printf (_("\
 313 Conversion target:\n"));
 314       printf (_("\
 315   -t, --to-code=NAME          encoding for output\n"));
 316       printf (_("\
 317 The default encoding is the current locale's encoding.\n"));
 318       printf ("\n");
 319       printf (_("\
 320 Input file syntax:\n"));
 321       printf (_("\
 322   -P, --properties-input      input file is in Java .properties syntax\n"));
 323       printf (_("\
 324       --stringtable-input     input file is in NeXTstep/GNUstep .strings syntax\n"));
 325       printf ("\n");
 326       printf (_("\
 327 Output details:\n"));
 328       printf (_("\
 329   -e, --no-escape             do not use C escapes in output (default)\n"));
 330       printf (_("\
 331   -E, --escape                use C escapes in output, no extended chars\n"));
 332       printf (_("\
 333       --force-po              write PO file even if empty\n"));
 334       printf (_("\
 335   -i, --indent                indented output style\n"));
 336       printf (_("\
 337       --no-location           suppress '#: filename:line' lines\n"));
 338       printf (_("\
 339       --add-location          preserve '#: filename:line' lines (default)\n"));
 340       printf (_("\
 341       --strict                strict Uniforum output style\n"));
 342       printf (_("\
 343   -p, --properties-output     write out a Java .properties file\n"));
 344       printf (_("\
 345       --stringtable-output    write out a NeXTstep/GNUstep .strings file\n"));
 346       printf (_("\
 347   -w, --width=NUMBER          set output page width\n"));
 348       printf (_("\
 349       --no-wrap               do not break long message lines, longer than\n\
 350                               the output page width, into several lines\n"));
 351       printf (_("\
 352   -s, --sort-output           generate sorted output\n"));
 353       printf (_("\
 354   -F, --sort-by-file          sort output by file location\n"));
 355       printf ("\n");
 356       printf (_("\
 357 Informative output:\n"));
 358       printf (_("\
 359   -h, --help                  display this help and exit\n"));
 360       printf (_("\
 361   -V, --version               output version information and exit\n"));
 362       printf ("\n");
 363       fputs (_("Report bugs to <bug-gnu-gettext@gnu.org>.\n"),
 364              stdout);
 365     }
 366
 367   exit (status);
 368 }