#include extern int yydebug; extern FILE *yyin, *yyout; extern int MVL_LINNUM; main(argc, argv) int argc; char** argv; { char* infilename; /* missing parameter check */ /* yydebug=1; */ /* open files */ /* input file */ if (argc>1){ infilename=(char*)malloc(sizeof(char)*strlen(argv[1])+1); strcpy(infilename, argv[1]); if ((yyin=fopen(argv[1],"r"))==NULL){ yyerror("unable to open inputfile"); } argc--; argv++; }else{ infilename=" "; } /* output file */ if (argc>1){ if ((yyout=fopen(argv[1],"w"))==NULL){ yyerror("could not open outputfile\n"); } } yyparse(); exit(0); }