gnu/dist/gettext/gettext-tools/src/write-resources.c

   1 /* Writing C# .resources files.
   2    Copyright (C) 2003, 2005 Free Software Foundation, Inc.
   3    Written by Bruno Haible <bruno@clisp.org>, 2003.
   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 #ifdef HAVE_CONFIG_H
  20 # include <config.h>
  21 #endif
  22
  23 /* Specification.  */
  24 #include "write-resources.h"
  25
  26 #include <errno.h>
  27 #include <stdbool.h>
  28 #include <stdlib.h>
  29 #include <stdio.h>
  30 #include <string.h>
  31
  32 #include "error.h"
  33 #include "xerror.h"
  34 #include "relocatable.h"
  35 #include "csharpexec.h"
  36 #include "pipe.h"
  37 #include "wait-process.h"
  38 #include "message.h"
  39 #include "msgfmt.h"
  40 #include "msgl-iconv.h"
  41 #include "po-charset.h"
  42 #include "xalloc.h"
  43 #include "pathname.h"
  44 #include "fwriteerror.h"
  45 #include "exit.h"
  46 #include "gettext.h"
  47
  48 #define _(str) gettext (str)
  49
  50
  51 /* A .resources file has such a complex format that it's most easily generated
  52    through the C# class ResourceWriter.  So we start a C# process to execute
  53    the WriteResource program, sending it the msgid/msgstr pairs as
  54    NUL-terminated UTF-8 encoded strings.  */
  55
  56 struct locals
  57 {
  58   /* IN */
  59   message_list_ty *mlp;
  60 };
  61
  62 static bool
  63 execute_writing_input (const char *progname,
  64                        const char *prog_path, char **prog_argv,
  65                        void *private_data)
  66 {
  67   struct locals *l = (struct locals *) private_data;
  68   pid_t child;
  69   int fd[1];
  70   FILE *fp;
  71   int exitstatus;
  72
  73   /* Open a pipe to the C# execution engine.  */
  74   child = create_pipe_out (progname, prog_path, prog_argv, NULL, false,
  75                            true, true, fd);
  76
  77   fp = fdopen (fd[0], "wb");
  78   if (fp == NULL)
  79     error (EXIT_FAILURE, errno, _("fdopen() failed"));
  80
  81   /* Write the message list.  */
  82   {
  83     message_list_ty *mlp = l->mlp;
  84     size_t j;
  85
  86     for (j = 0; j < mlp->nitems; j++)
  87       {
  88         message_ty *mp = mlp->item[j];
  89
  90         fwrite (mp->msgid, 1, strlen (mp->msgid) + 1, fp);
  91         fwrite (mp->msgstr, 1, strlen (mp->msgstr) + 1, fp);
  92       }
  93   }
  94
  95   if (fwriteerror (fp))
  96     error (EXIT_FAILURE, 0, _("error while writing to %s subprocess"),
  97            progname);
  98
  99   /* Remove zombie process from process list, and retrieve exit status.  */
 100   /* He we can ignore SIGPIPE because WriteResource either writes to a file
 101      - then it never gets SIGPIPE - or to standard output, and in the latter
 102      case it has no side effects other than writing to standard output.  */
 103   exitstatus = wait_subprocess (child, progname, true, false, true, true);
 104   if (exitstatus != 0)
 105     error (EXIT_FAILURE, 0, _("%s subprocess failed with exit code %d"),
 106            progname, exitstatus);
 107
 108   return false;
 109 }
 110
 111 int
 112 msgdomain_write_csharp_resources (message_list_ty *mlp,
 113                                   const char *canon_encoding,
 114                                   const char *domain_name,
 115                                   const char *file_name)
 116 {
 117   /* If no entry for this domain don't even create the file.  */
 118   if (mlp->nitems != 0)
 119     {
 120       /* Determine whether mlp has plural entries.  */
 121       {
 122         bool has_plural;
 123         size_t j;
 124
 125         has_plural = false;
 126         for (j = 0; j < mlp->nitems; j++)
 127           if (mlp->item[j]->msgid_plural != NULL)
 128             has_plural = true;
 129         if (has_plural)
 130           {
 131             multiline_error (xstrdup (""),
 132                              xstrdup (_("\
 133 message catalog has plural form translations\n\
 134 but the C# .resources format doesn't support plural handling\n")));
 135             return 1;
 136           }
 137       }
 138
 139       /* Convert the messages to Unicode.  */
 140       iconv_message_list (mlp, canon_encoding, po_charset_utf8, NULL);
 141
 142       /* Execute the WriteResource program.  */
 143       {
 144         const char *args[2];
 145         const char *gettextexedir;
 146         char *assembly_path;
 147         struct locals locals;
 148
 149         /* Prepare arguments.  */
 150         args[0] = file_name;
 151         args[1] = NULL;
 152
 153         /* Make it possible to override the .exe location.  This is
 154            necessary for running the testsuite before "make install".  */
 155         gettextexedir = getenv ("GETTEXTCSHARPEXEDIR");
 156         if (gettextexedir == NULL || gettextexedir[0] == '\0')
 157           gettextexedir = relocate (LIBDIR "/gettext");
 158
 159         assembly_path =
 160           concatenated_pathname (gettextexedir, "msgfmt.net", ".exe");
 161
 162         locals.mlp = mlp;
 163
 164         if (execute_csharp_program (assembly_path, NULL, 0,
 165                                     args,
 166                                     verbose, false,
 167                                     execute_writing_input, &locals))
 168           /* An error message should already have been provided.  */
 169           exit (EXIT_FAILURE);
 170
 171         free (assembly_path);
 172       }
 173     }
 174
 175   return 0;
 176 }