Lex2 [03] lex.l main.c main.c #include #include #include "lex.h" extern FILE *yyin; /* input stream */ extern int yylval, /* integer value of TK_NUM */ yylen; /* length of TK_ID string */ extern char *yytext; /* point to TK_ID string */ main(argc, argv) register int argc; register char *argv[]; { int n, i; char *c; if (argc != 2) { fprintf(stderr, "usage: scan \n"); exit(1) ; } if ((yyin = fopen(argv[1], "r")) .. 2019. 4. 14. [02] lex.c main.c main.c #include #include #include #include "lex.h" extern int get_tok(); extern int yylval, /* integer value of TK_NUM */ yylen; /* length of TK_ID string */ extern char yytext[]; /* point to TK_ID string */ extern FILE *fin; main(int argc, char *argv[]) { int n, i; char *pc; if (argc != 2) { fprintf(stderr, "usage: %s \n", argv[0]); exit(1) ; } if ((fin = fopen(argv[1], "r")) == NULL) { .. 2019. 4. 14. 이전 1 다음
