/* * ACCENT  *  * A Compiler Compiler for the Entire Class of Context-Free Languages *  * Copyright (C) 1999  Friedrich Wilhelm Schroeer *  * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, 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 General Public License for more details. *  * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */#include <stdio.h>extern FILE *yyin;char *SourceFileName;main (argc, argv)   int argc;   char **argv;{   if (argc > 2) {      printf("too many arguments\n");      exit(1);   }   if (argc == 2) {      SourceFileName = argv[1];      yyin = fopen (SourceFileName, "r");      if (yyin == NULL) {	 printf("cannot open '%s'\n", SourceFileName);	 exit(1);      }   }   ROOT();   exit(0);}GetSourceFileName(ref_string)   char **ref_string;{   *ref_string = SourceFileName;}