1 /* original parser id follows */
2 /* yysccsid[] = "@(#)yaccpar 1.9 (Berkeley) 02/21/93" */
3 /* (use YYMAJOR/YYMINOR for ifdefs dependent on parser version) */
8 #define YYCHECK "yyyymmdd"
11 #define yyclearin (yychar = YYEMPTY)
12 #define yyerrok (yyerrflag = 0)
13 #define YYRECOVERING() (yyerrflag != 0)
18 #define yyparse calc_parse
22 #define yylex calc_lex
26 #define yyerror calc_error
30 #define yychar calc_char
34 #define yyval calc_val
38 #define yylval calc_lval
42 #define yydebug calc_debug
46 #define yynerrs calc_nerrs
50 #define yyerrflag calc_errflag
51 #endif /* yyerrflag */
54 #define yylhs calc_lhs
58 #define yylen calc_len
62 #define yydefred calc_defred
66 #define yydgoto calc_dgoto
70 #define yysindex calc_sindex
74 #define yyrindex calc_rindex
78 #define yygindex calc_gindex
82 #define yytable calc_table
86 #define yycheck calc_check
90 #define yyname calc_name
94 #define yyrule calc_rule
96 #define YYPREFIX "calc_"
100 #line 4 "code_calc.y"
109 static void yyerror(const char *s);
112 #line 113 "code_calc.code.c"
114 #if ! defined(YYSTYPE) && ! defined(YYSTYPE_IS_DECLARED)
115 /* Default: YYSTYPE is the semantic value type. */
117 # define YYSTYPE_IS_DECLARED 1
120 /* compatibility with bison */
122 /* compatibility with FreeBSD */
123 # ifdef YYPARSE_PARAM_TYPE
124 # define YYPARSE_DECL() yyparse(YYPARSE_PARAM_TYPE YYPARSE_PARAM)
126 # define YYPARSE_DECL() yyparse(void *YYPARSE_PARAM)
129 # define YYPARSE_DECL() yyparse(void)
132 /* Parameters sent to lex. */
134 # define YYLEX_DECL() yylex(void *YYLEX_PARAM)
135 # define YYLEX yylex(YYLEX_PARAM)
137 # define YYLEX_DECL() yylex(void)
138 # define YYLEX yylex()
141 /* Parameters sent to yyerror. */
143 #define YYERROR_DECL() yyerror(const char *s)
146 #define YYERROR_CALL(msg) yyerror(msg)
152 #define YYERRCODE 256
154 #define yytname yyname
155 #define YYTABLESIZE 220
160 #define YYMAXTOKEN 259
161 #define YYUNDFTOKEN 265
162 #define YYTRANSLATE(a) ((a) > YYMAXTOKEN ? YYUNDFTOKEN : (a))
164 extern int YYPARSE_DECL();
166 extern YYINT yylhs[];
167 extern YYINT yylen[];
168 extern YYINT yydefred[];
169 extern YYINT yydgoto[];
170 extern YYINT yysindex[];
171 extern YYINT yyrindex[];
172 extern YYINT yygindex[];
173 extern YYINT yytable[];
174 extern YYINT yycheck[];
176 #if YYDEBUG || defined(yytname)
177 extern char *yyname[];
180 extern char *yyrule[];
191 /* define the initial stack-sizes */
194 #define YYMAXDEPTH YYSTACKSIZE
197 #define YYSTACKSIZE YYMAXDEPTH
199 #define YYSTACKSIZE 10000
200 #define YYMAXDEPTH 10000
204 #define YYINITSTACKSIZE 200
214 /* variables for the parser stack */
215 static YYSTACKDATA yystack;
216 #line 70 "code_calc.y"
217 /* start of programs */
220 extern int YYLEX_DECL();
226 while(!feof(stdin)) {
233 yyerror(const char *s)
235 fprintf(stderr, "%s\n", s);
241 /* lexical analysis routine */
242 /* returns LETTER for a lower case letter, yylval = 0 through 25 */
243 /* return DIGIT for a digit, yylval = 0 through 9 */
244 /* all other characters are returned immediately */
248 while( (c=getchar()) == ' ' ) { /* skip blanks */ }
250 /* c is now nonblank */
262 #line 263 "code_calc.code.c"
265 #include <stdio.h> /* needed for printf */
268 #include <stdlib.h> /* needed for malloc, etc */
269 #include <string.h> /* needed for memset */
271 /* allocate initial stack or double stack size, up to YYMAXDEPTH */
272 static int yygrowstack(YYSTACKDATA *data)
279 if ((newsize = data->stacksize) == 0)
280 newsize = YYINITSTACKSIZE;
281 else if (newsize >= YYMAXDEPTH)
283 else if ((newsize *= 2) > YYMAXDEPTH)
284 newsize = YYMAXDEPTH;
286 i = (int) (data->s_mark - data->s_base);
287 newss = (YYINT *)realloc(data->s_base, newsize * sizeof(*newss));
291 data->s_base = newss;
292 data->s_mark = newss + i;
294 newvs = (YYSTYPE *)realloc(data->l_base, newsize * sizeof(*newvs));
298 data->l_base = newvs;
299 data->l_mark = newvs + i;
301 data->stacksize = newsize;
302 data->s_last = data->s_base + newsize - 1;
306 #if YYPURE || defined(YY_NO_LEAKS)
307 static void yyfreestack(YYSTACKDATA *data)
311 memset(data, 0, sizeof(*data));
314 #define yyfreestack(data) /* nothing */
317 #define YYABORT goto yyabort
318 #define YYREJECT goto yyabort
319 #define YYACCEPT goto yyaccept
320 #define YYERROR goto yyerrlab
325 int yym, yyn, yystate;
329 if ((yys = getenv("YYDEBUG")) != 0)
332 if (yyn >= '0' && yyn <= '9')
345 memset(&yystack, 0, sizeof(yystack));
348 if (yystack.s_base == NULL && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
349 yystack.s_mark = yystack.s_base;
350 yystack.l_mark = yystack.l_base;
355 if ((yyn = yydefred[yystate]) != 0) goto yyreduce;
359 if (yychar < 0) yychar = YYEOF;
363 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
364 printf("%sdebug: state %d, reading %d (%s)\n",
365 YYPREFIX, yystate, yychar, yys);
369 if (((yyn = yysindex[yystate]) != 0) && (yyn += yychar) >= 0 &&
370 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar)
374 printf("%sdebug: state %d, shifting to state %d\n",
375 YYPREFIX, yystate, yytable[yyn]);
377 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
378 yystate = yytable[yyn];
379 *++yystack.s_mark = yytable[yyn];
380 *++yystack.l_mark = yylval;
382 if (yyerrflag > 0) --yyerrflag;
385 if (((yyn = yyrindex[yystate]) != 0) && (yyn += yychar) >= 0 &&
386 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar)
391 if (yyerrflag != 0) goto yyinrecovery;
393 YYERROR_CALL("syntax error");
395 goto yyerrlab; /* redundant goto avoids 'unused label' warning */
405 if (((yyn = yysindex[*yystack.s_mark]) != 0) && (yyn += YYERRCODE) >= 0 &&
406 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) YYERRCODE)
410 printf("%sdebug: state %d, error recovery shifting\
411 to state %d\n", YYPREFIX, *yystack.s_mark, yytable[yyn]);
413 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
414 yystate = yytable[yyn];
415 *++yystack.s_mark = yytable[yyn];
416 *++yystack.l_mark = yylval;
423 printf("%sdebug: error recovery discarding state %d\n",
424 YYPREFIX, *yystack.s_mark);
426 if (yystack.s_mark <= yystack.s_base) goto yyabort;
434 if (yychar == YYEOF) goto yyabort;
438 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
439 printf("%sdebug: state %d, error recovery discards token %d (%s)\n",
440 YYPREFIX, yystate, yychar, yys);
450 printf("%sdebug: state %d, reducing by rule %d (%s)\n",
451 YYPREFIX, yystate, yyn, yyrule[yyn]);
455 yyval = yystack.l_mark[1-yym];
457 memset(&yyval, 0, sizeof yyval);
462 #line 32 "code_calc.y"
466 #line 36 "code_calc.y"
467 { printf("%d\n",yystack.l_mark[0]);}
470 #line 38 "code_calc.y"
471 { regs[yystack.l_mark[-2]] = yystack.l_mark[0]; }
474 #line 42 "code_calc.y"
475 { yyval = yystack.l_mark[-1]; }
478 #line 44 "code_calc.y"
479 { yyval = yystack.l_mark[-2] + yystack.l_mark[0]; }
482 #line 46 "code_calc.y"
483 { yyval = yystack.l_mark[-2] - yystack.l_mark[0]; }
486 #line 48 "code_calc.y"
487 { yyval = yystack.l_mark[-2] * yystack.l_mark[0]; }
490 #line 50 "code_calc.y"
491 { yyval = yystack.l_mark[-2] / yystack.l_mark[0]; }
494 #line 52 "code_calc.y"
495 { yyval = yystack.l_mark[-2] % yystack.l_mark[0]; }
498 #line 54 "code_calc.y"
499 { yyval = yystack.l_mark[-2] & yystack.l_mark[0]; }
502 #line 56 "code_calc.y"
503 { yyval = yystack.l_mark[-2] | yystack.l_mark[0]; }
506 #line 58 "code_calc.y"
507 { yyval = - yystack.l_mark[0]; }
510 #line 60 "code_calc.y"
511 { yyval = regs[yystack.l_mark[0]]; }
514 #line 65 "code_calc.y"
515 { yyval = yystack.l_mark[0]; base = (yystack.l_mark[0]==0) ? 8 : 10; }
518 #line 67 "code_calc.y"
519 { yyval = base * yystack.l_mark[-1] + yystack.l_mark[0]; }
521 #line 522 "code_calc.code.c"
523 yystack.s_mark -= yym;
524 yystate = *yystack.s_mark;
525 yystack.l_mark -= yym;
527 if (yystate == 0 && yym == 0)
531 printf("%sdebug: after reduction, shifting from state 0 to\
532 state %d\n", YYPREFIX, YYFINAL);
535 *++yystack.s_mark = YYFINAL;
536 *++yystack.l_mark = yyval;
540 if (yychar < 0) yychar = YYEOF;
544 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
545 printf("%sdebug: state %d, reading %d (%s)\n",
546 YYPREFIX, YYFINAL, yychar, yys);
550 if (yychar == YYEOF) goto yyaccept;
553 if (((yyn = yygindex[yym]) != 0) && (yyn += yystate) >= 0 &&
554 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yystate)
555 yystate = yytable[yyn];
557 yystate = yydgoto[yym];
560 printf("%sdebug: after reduction, shifting from state %d \
561 to state %d\n", YYPREFIX, *yystack.s_mark, yystate);
563 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
564 *++yystack.s_mark = (YYINT) yystate;
565 *++yystack.l_mark = yyval;
569 YYERROR_CALL("yacc stack overflow");
572 yyfreestack(&yystack);
576 yyfreestack(&yystack);