/* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307,   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 voidprint_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);}