lib/intl/log.c

   1 /* log.c - Log file output. */
   2
   3 /* Copyright (C) 2003, 2005-2009 Free Software Foundation, Inc.
   4
   5    This file is part of GNU Bush.
   6
   7    Bush is free software: you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation, either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    Bush is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with Bush.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 /* Written by Bruno Haible <bruno@clisp.org>.  */
  22
  23 #ifdef HAVE_CONFIG_H
  24 # include <config.h>
  25 #endif
  26
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30
  31 /* Print an ASCII string with quotes and escape sequences where needed.  */
  32 static void
  33 print_escaped (stream, str)
  34      FILE *stream;
  35      const char *str;
  36 {
  37   putc ('"', stream);
  38   for (; *str != '\0'; str++)
  39     if (*str == '\n')
  40       {
  41         fputs ("\\n\"", stream);
  42         if (str[1] == '\0')
  43           return;
  44         fputs ("\n\"", stream);
  45       }
  46     else
  47       {
  48         if (*str == '"' || *str == '\\')
  49           putc ('\\', stream);
  50         putc (*str, stream);
  51       }
  52   putc ('"', stream);
  53 }
  54
  55 /* Add to the log file an entry denoting a failed translation.  */
  56 void
  57 _nl_log_untranslated (logfilename, domainname, msgid1, msgid2, plural)
  58      const char *logfilename;
  59      const char *domainname;
  60      const char *msgid1;
  61      const char *msgid2;
  62      int plural;
  63 {
  64   static char *last_logfilename = NULL;
  65   static FILE *last_logfile = NULL;
  66   FILE *logfile;
  67
  68   /* Can we reuse the last opened logfile?  */
  69   if (last_logfilename == NULL || strcmp (logfilename, last_logfilename) != 0)
  70     {
  71       /* Close the last used logfile.  */
  72       if (last_logfilename != NULL)
  73         {
  74           if (last_logfile != NULL)
  75             {
  76               fclose (last_logfile);
  77               last_logfile = NULL;
  78             }
  79           free (last_logfilename);
  80           last_logfilename = NULL;
  81         }
  82       /* Open the logfile.  */
  83       last_logfilename = (char *) malloc (strlen (logfilename) + 1);
  84       if (last_logfilename == NULL)
  85         return;
  86       strcpy (last_logfilename, logfilename);
  87       last_logfile = fopen (logfilename, "a");
  88       if (last_logfile == NULL)
  89         return;
  90     }
  91   logfile = last_logfile;
  92
  93   fprintf (logfile, "domain ");
  94   print_escaped (logfile, domainname);
  95   fprintf (logfile, "\nmsgid ");
  96   print_escaped (logfile, msgid1);
  97   if (plural)
  98     {
  99       fprintf (logfile, "\nmsgid_plural ");
 100       print_escaped (logfile, msgid2);
 101       fprintf (logfile, "\nmsgstr[0] \"\"\n");
 102     }
 103   else
 104     fprintf (logfile, "\nmsgstr \"\"\n");
 105   putc ('\n', logfile);
 106 }