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/* Log file output.
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   Copyright (C) 2003 Free Software Foundation, Inc.
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   This program is free software; you can redistribute it and/or modify it
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   under the terms of the GNU Library General Public License as published
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   by the Free Software Foundation; either version 2, or (at your option)
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   any later version.
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   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Library General Public License for more details.
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   You should have received a copy of the GNU Library General Public
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   License along with this program; if not, write to the Free Software
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   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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   USA.  */
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/* Written by Bruno Haible <bruno@clisp.org>.  */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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/* Print an ASCII string with quotes and escape sequences where needed.  */
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static void
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print_escaped (FILE *stream, const char *str)
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{
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  putc ('"', stream);
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  for (; *str != '\0'; str++)
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    if (*str == '\n')
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      {
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        fputs ("\\n\"", stream);
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        if (str[1] == '\0')
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          return;
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        fputs ("\n\"", stream);
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      }
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    else
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      {
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        if (*str == '"' || *str == '\\')
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          putc ('\\', stream);
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        putc (*str, stream);
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      }
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  putc ('"', stream);
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}
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/* Add to the log file an entry denoting a failed translation.  */
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void
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_nl_log_untranslated (const char *logfilename, const char *domainname,
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                      const char *msgid1, const char *msgid2, int plural)
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{
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  static char *last_logfilename = NULL;
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  static FILE *last_logfile = NULL;
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  FILE *logfile;
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  /* Can we reuse the last opened logfile?  */
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  if (last_logfilename == NULL || strcmp (logfilename, last_logfilename) != 0)
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    {
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      /* Close the last used logfile.  */
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      if (last_logfilename != NULL)
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        {
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          if (last_logfile != NULL)
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            {
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              fclose (last_logfile);
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              last_logfile = NULL;
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            }
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          free (last_logfilename);
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          last_logfilename = NULL;
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        }
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      /* Open the logfile.  */
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      last_logfilename = (char *) malloc (strlen (logfilename) + 1);
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      if (last_logfilename == NULL)
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        return;
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      strcpy (last_logfilename, logfilename);
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      last_logfile = fopen (logfilename, "a");
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      if (last_logfile == NULL)
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        return;
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    }
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  logfile = last_logfile;
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  fprintf (logfile, "domain ");
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  print_escaped (logfile, domainname);
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  fprintf (logfile, "\nmsgid ");
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  print_escaped (logfile, msgid1);
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  if (plural)
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    {
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      fprintf (logfile, "\nmsgid_plural ");
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      print_escaped (logfile, msgid2);
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      fprintf (logfile, "\nmsgstr[0] \"\"\n");
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    }
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  else
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    fprintf (logfile, "\nmsgstr \"\"\n");
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  putc ('\n', logfile);
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}