intl/log.c

   1 /* Log file output.
   2    Copyright (C) 2003 Free Software Foundation, Inc.
   3
   4    This program is free software; you can redistribute it and/or modify it
   5    under the terms of the GNU Library General Public License as published
   6    by the Free Software Foundation; either version 2, or (at your option)
   7    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 GNU
  12    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public
  15    License along with this program; if not, write to the Free Software
  16    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301,
  17    USA.  */
  18
  19 /* Written by Bruno Haible <bruno@clisp.org>.  */
  20
  21 #ifdef HAVE_CONFIG_H
  22 # include <config.h>
  23 #endif
  24
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28
  29 /* Print an ASCII string with quotes and escape sequences where needed.  */
  30 static void
  31 print_escaped (stream, str)
  32      FILE *stream;
  33      const char *str;
  34 {
  35   putc ('"', stream);
  36   for (; *str != '\0'; str++)
  37     if (*str == '\n')
  38       {
  39         fputs ("\\n\"", stream);
  40         if (str[1] == '\0')
  41           return;
  42         fputs ("\n\"", stream);
  43       }
  44     else
  45       {
  46         if (*str == '"' || *str == '\\')
  47           putc ('\\', stream);
  48         putc (*str, stream);
  49       }
  50   putc ('"', stream);
  51 }
  52
  53 /* Add to the log file an entry denoting a failed translation.  */
  54 void
  55 _nl_log_untranslated (logfilename, domainname, msgid1, msgid2, plural)
  56      const char *logfilename;
  57      const char *domainname;
  58      const char *msgid1;
  59      const char *msgid2;
  60      int plural;
  61 {
  62   static char *last_logfilename = NULL;
  63   static FILE *last_logfile = NULL;
  64   FILE *logfile;
  65
  66   /* Can we reuse the last opened logfile?  */
  67   if (last_logfilename == NULL || strcmp (logfilename, last_logfilename) != 0)
  68     {
  69       /* Close the last used logfile.  */
  70       if (last_logfilename != NULL)
  71         {
  72           if (last_logfile != NULL)
  73             {
  74               fclose (last_logfile);
  75               last_logfile = NULL;
  76             }
  77           free (last_logfilename);
  78           last_logfilename = NULL;
  79         }
  80       /* Open the logfile.  */
  81       last_logfilename = (char *) malloc (strlen (logfilename) + 1);
  82       if (last_logfilename == NULL)
  83         return;
  84       strcpy (last_logfilename, logfilename);
  85       last_logfile = fopen (logfilename, "a");
  86       if (last_logfile == NULL)
  87         return;
  88     }
  89   logfile = last_logfile;
  90
  91   fprintf (logfile, "domain ");
  92   print_escaped (logfile, domainname);
  93   fprintf (logfile, "\nmsgid ");
  94   print_escaped (logfile, msgid1);
  95   if (plural)
  96     {
  97       fprintf (logfile, "\nmsgid_plural ");
  98       print_escaped (logfile, msgid2);
  99       fprintf (logfile, "\nmsgstr[0] \"\"\n");
 100     }
 101   else
 102     fprintf (logfile, "\nmsgstr \"\"\n");
 103   putc ('\n', logfile);
 104 }