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/* Log file output.

   Copyright (C) 2003 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify it

   under the terms of the GNU Library General Public License as published

   by the Free Software Foundation; either version 2, or (at your option)

   any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public

   License along with this program; if not, write to the Free Software

   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301,

   USA.  */

/* Written by Bruno Haible <bruno@clisp.org>.  */

#ifdef HAVE_CONFIG_H

# include <config.h>

#endif

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

/* Print an ASCII string with quotes and escape sequences where needed.  */

static void

print_escaped (stream, str)

     FILE *stream;

     const char *str;

{

  putc ('"', stream);

  for (; *str != '\0'; str++)

    if (*str == '\n')

      {

        fputs ("\\n\"", stream);

        if (str[1] == '\0')

          return;

        fputs ("\n\"", stream);

      }

    else

      {

        if (*str == '"' || *str == '\\')

          putc ('\\', stream);

        putc (*str, stream);

      }

  putc ('"', stream);

}

/* Add to the log file an entry denoting a failed translation.  */

void

_nl_log_untranslated (logfilename, domainname, msgid1, msgid2, plural)

     const char *logfilename;

     const char *domainname;

     const char *msgid1;

     const char *msgid2;

     int plural;

{

  static char *last_logfilename = NULL;

  static FILE *last_logfile = NULL;

  FILE *logfile;

  /* Can we reuse the last opened logfile?  */

  if (last_logfilename == NULL || strcmp (logfilename, last_logfilename) != 0)

    {

      /* Close the last used logfile.  */

      if (last_logfilename != NULL)

        {

          if (last_logfile != NULL)

            {

              fclose (last_logfile);

              last_logfile = NULL;

            }

          free (last_logfilename);

          last_logfilename = NULL;

        }

      /* Open the logfile.  */

      last_logfilename = (char *) malloc (strlen (logfilename) + 1);

      if (last_logfilename == NULL)

        return;

      strcpy (last_logfilename, logfilename);

      last_logfile = fopen (logfilename, "a");

      if (last_logfile == NULL)

        return;

    }

  logfile = last_logfile;

  fprintf (logfile, "domain ");

  print_escaped (logfile, domainname);

  fprintf (logfile, "\nmsgid ");

  print_escaped (logfile, msgid1);

  if (plural)

    {

      fprintf (logfile, "\nmsgid_plural ");

      print_escaped (logfile, msgid2);

      fprintf (logfile, "\nmsgstr[0] \"\"\n");

    }

  else

    fprintf (logfile, "\nmsgstr \"\"\n");

  putc ('\n', logfile);

}