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 calc2_parse
22 #define yylex calc2_lex
26 #define yyerror calc2_error
30 #define yychar calc2_char
34 #define yyval calc2_val
38 #define yylval calc2_lval
42 #define yydebug calc2_debug
46 #define yynerrs calc2_nerrs
50 #define yyerrflag calc2_errflag
51 #endif /* yyerrflag */
54 #define yylhs calc2_lhs
58 #define yylen calc2_len
62 #define yydefred calc2_defred
66 #define yydgoto calc2_dgoto
70 #define yysindex calc2_sindex
74 #define yyrindex calc2_rindex
78 #define yygindex calc2_gindex
82 #define yytable calc2_table
86 #define yycheck calc2_check
90 #define yyname calc2_name
94 #define yyrule calc2_rule
96 #define YYPREFIX "calc2_"
105 #define YYLEX_PARAM base
106 #define YYLEX_DECL() yylex(int *YYLEX_PARAM)
107 #define YYERROR_DECL() yyerror(int regs[26], int *base, const char *s)
109 static void YYERROR_DECL();
112 #line 113 "calc2.tab.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(int regs[26], int *base)
132 /* Parameters sent to lex. */
134 # define YYLEX_DECL() yylex(void *YYLEX_PARAM)
135 # define YYLEX yylex(YYLEX_PARAM)
137 # define YYLEX_DECL() yylex(int *base)
138 # define YYLEX yylex(base)
141 /* Parameters sent to yyerror. */
143 #define YYERROR_DECL() yyerror(int regs[26], int *base, const char *s)
146 #define YYERROR_CALL(msg) yyerror(regs, base, msg)
149 extern int YYPARSE_DECL();
154 #define YYERRCODE 256
156 static const YYINT calc2_lhs[] = { -1,
157 0, 0, 0, 1, 1, 2, 2, 2, 2, 2,
158 2, 2, 2, 2, 2, 2, 3, 3,
160 static const YYINT calc2_len[] = { 2,
161 0, 3, 3, 1, 3, 3, 3, 3, 3, 3,
162 3, 3, 3, 2, 1, 1, 1, 2,
164 static const YYINT calc2_defred[] = { 1,
165 0, 0, 17, 0, 0, 0, 0, 0, 0, 3,
166 0, 15, 14, 0, 2, 0, 0, 0, 0, 0,
167 0, 0, 18, 0, 6, 0, 0, 0, 0, 9,
170 static const YYINT calc2_dgoto[] = { 1,
173 static const YYINT calc2_sindex[] = { 0,
174 -40, -7, 0, -55, -38, -38, 1, -29, -247, 0,
175 -38, 0, 0, 22, 0, -38, -38, -38, -38, -38,
176 -38, -38, 0, -29, 0, 51, 60, -20, -20, 0,
179 static const YYINT calc2_rindex[] = { 0,
180 0, 0, 0, 2, 0, 0, 0, 9, -9, 0,
181 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
182 0, 0, 0, 10, 0, -6, 14, 5, 13, 0,
185 static const YYINT calc2_gindex[] = { 0,
188 #define YYTABLESIZE 220
189 static const YYINT calc2_table[] = { 6,
190 16, 6, 10, 13, 5, 11, 5, 22, 17, 23,
191 15, 15, 20, 18, 7, 19, 22, 21, 4, 5,
192 0, 20, 8, 12, 0, 0, 21, 16, 16, 0,
193 0, 16, 16, 16, 13, 16, 0, 16, 15, 15,
194 0, 0, 7, 15, 15, 7, 15, 7, 15, 7,
195 8, 12, 0, 8, 12, 8, 0, 8, 22, 17,
196 0, 0, 25, 20, 18, 0, 19, 0, 21, 13,
197 14, 0, 0, 0, 0, 24, 0, 0, 0, 0,
198 26, 27, 28, 29, 30, 31, 32, 22, 17, 0,
199 0, 0, 20, 18, 16, 19, 22, 21, 0, 0,
200 0, 20, 18, 0, 19, 0, 21, 0, 0, 0,
201 0, 0, 0, 0, 16, 0, 0, 13, 0, 0,
202 0, 0, 0, 0, 0, 15, 0, 0, 7, 0,
203 0, 0, 0, 0, 0, 0, 8, 12, 0, 0,
204 0, 0, 0, 0, 0, 16, 0, 0, 0, 0,
205 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
206 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
207 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
208 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
209 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
210 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
211 0, 0, 0, 0, 0, 2, 3, 4, 3, 12,
213 static const YYINT calc2_check[] = { 40,
214 10, 40, 10, 10, 45, 61, 45, 37, 38, 257,
215 10, 10, 42, 43, 10, 45, 37, 47, 10, 10,
216 -1, 42, 10, 10, -1, -1, 47, 37, 38, -1,
217 -1, 41, 42, 43, 41, 45, -1, 47, 37, 38,
218 -1, -1, 38, 42, 43, 41, 45, 43, 47, 45,
219 38, 38, -1, 41, 41, 43, -1, 45, 37, 38,
220 -1, -1, 41, 42, 43, -1, 45, -1, 47, 5,
221 6, -1, -1, -1, -1, 11, -1, -1, -1, -1,
222 16, 17, 18, 19, 20, 21, 22, 37, 38, -1,
223 -1, -1, 42, 43, 124, 45, 37, 47, -1, -1,
224 -1, 42, 43, -1, 45, -1, 47, -1, -1, -1,
225 -1, -1, -1, -1, 124, -1, -1, 124, -1, -1,
226 -1, -1, -1, -1, -1, 124, -1, -1, 124, -1,
227 -1, -1, -1, -1, -1, -1, 124, 124, -1, -1,
228 -1, -1, -1, -1, -1, 124, -1, -1, -1, -1,
229 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
230 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
231 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
232 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
233 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
234 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
235 -1, -1, -1, -1, -1, 256, 257, 258, 257, 258,
241 #define YYMAXTOKEN 259
242 #define YYUNDFTOKEN 265
243 #define YYTRANSLATE(a) ((a) > YYMAXTOKEN ? YYUNDFTOKEN : (a))
245 static const char *const calc2_name[] = {
247 "end-of-file",0,0,0,0,0,0,0,0,0,"'\\n'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
248 0,0,0,0,0,0,"'%'","'&'",0,"'('","')'","'*'","'+'",0,"'-'",0,"'/'",0,0,0,0,0,0,0,
249 0,0,0,0,0,0,"'='",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
250 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"'|'",0,0,0,0,0,0,
251 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
252 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
253 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
254 0,0,0,0,0,0,"DIGIT","LETTER","UMINUS",0,0,0,0,0,"illegal-symbol",
256 static const char *const calc2_rule[] = {
259 "list : list stat '\\n'",
260 "list : list error '\\n'",
262 "stat : LETTER '=' expr",
263 "expr : '(' expr ')'",
264 "expr : expr '+' expr",
265 "expr : expr '-' expr",
266 "expr : expr '*' expr",
267 "expr : expr '/' expr",
268 "expr : expr '%' expr",
269 "expr : expr '&' expr",
270 "expr : expr '|' expr",
275 "number : number DIGIT",
288 /* define the initial stack-sizes */
291 #define YYMAXDEPTH YYSTACKSIZE
294 #define YYSTACKSIZE YYMAXDEPTH
296 #define YYSTACKSIZE 10000
297 #define YYMAXDEPTH 10000
301 #define YYINITSTACKSIZE 200
311 /* variables for the parser stack */
312 static YYSTACKDATA yystack;
314 /* start of programs */
317 extern int YYLEX_DECL();
326 while(!feof(stdin)) {
327 yyparse(regs, &base);
332 #define UNUSED(x) ((void)(x))
337 UNUSED(regs); /* %parse-param regs is not actually used here */
338 UNUSED(base); /* %parse-param base is not actually used here */
339 fprintf(stderr, "%s\n", s);
345 /* lexical analysis routine */
346 /* returns LETTER for a lower case letter, yylval = 0 through 25 */
347 /* return DIGIT for a digit, yylval = 0 through 9 */
348 /* all other characters are returned immediately */
352 while( (c=getchar()) == ' ' ) { /* skip blanks */ }
354 /* c is now nonblank */
361 yylval = (c - '0') % (*base);
366 #line 367 "calc2.tab.c"
369 #include <stdio.h> /* needed for printf */
372 #include <stdlib.h> /* needed for malloc, etc */
373 #include <string.h> /* needed for memset */
375 /* allocate initial stack or double stack size, up to YYMAXDEPTH */
376 static int yygrowstack(YYSTACKDATA *data)
383 if ((newsize = data->stacksize) == 0)
384 newsize = YYINITSTACKSIZE;
385 else if (newsize >= YYMAXDEPTH)
387 else if ((newsize *= 2) > YYMAXDEPTH)
388 newsize = YYMAXDEPTH;
390 i = (int) (data->s_mark - data->s_base);
391 newss = (YYINT *)realloc(data->s_base, newsize * sizeof(*newss));
395 data->s_base = newss;
396 data->s_mark = newss + i;
398 newvs = (YYSTYPE *)realloc(data->l_base, newsize * sizeof(*newvs));
402 data->l_base = newvs;
403 data->l_mark = newvs + i;
405 data->stacksize = newsize;
406 data->s_last = data->s_base + newsize - 1;
410 #if YYPURE || defined(YY_NO_LEAKS)
411 static void yyfreestack(YYSTACKDATA *data)
415 memset(data, 0, sizeof(*data));
418 #define yyfreestack(data) /* nothing */
421 #define YYABORT goto yyabort
422 #define YYREJECT goto yyabort
423 #define YYACCEPT goto yyaccept
424 #define YYERROR goto yyerrlab
429 int yym, yyn, yystate;
433 if ((yys = getenv("YYDEBUG")) != 0)
436 if (yyn >= '0' && yyn <= '9')
447 memset(&yystack, 0, sizeof(yystack));
450 if (yystack.s_base == NULL && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
451 yystack.s_mark = yystack.s_base;
452 yystack.l_mark = yystack.l_base;
457 if ((yyn = yydefred[yystate]) != 0) goto yyreduce;
460 if ((yychar = YYLEX) < 0) yychar = YYEOF;
464 yys = yyname[YYTRANSLATE(yychar)];
465 printf("%sdebug: state %d, reading %d (%s)\n",
466 YYPREFIX, yystate, yychar, yys);
470 if ((yyn = yysindex[yystate]) && (yyn += yychar) >= 0 &&
471 yyn <= YYTABLESIZE && yycheck[yyn] == yychar)
475 printf("%sdebug: state %d, shifting to state %d\n",
476 YYPREFIX, yystate, yytable[yyn]);
478 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM)
482 yystate = yytable[yyn];
483 *++yystack.s_mark = yytable[yyn];
484 *++yystack.l_mark = yylval;
486 if (yyerrflag > 0) --yyerrflag;
489 if ((yyn = yyrindex[yystate]) && (yyn += yychar) >= 0 &&
490 yyn <= YYTABLESIZE && yycheck[yyn] == yychar)
495 if (yyerrflag) goto yyinrecovery;
497 YYERROR_CALL("syntax error");
510 if ((yyn = yysindex[*yystack.s_mark]) && (yyn += YYERRCODE) >= 0 &&
511 yyn <= YYTABLESIZE && yycheck[yyn] == YYERRCODE)
515 printf("%sdebug: state %d, error recovery shifting\
516 to state %d\n", YYPREFIX, *yystack.s_mark, yytable[yyn]);
518 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM)
522 yystate = yytable[yyn];
523 *++yystack.s_mark = yytable[yyn];
524 *++yystack.l_mark = yylval;
531 printf("%sdebug: error recovery discarding state %d\n",
532 YYPREFIX, *yystack.s_mark);
534 if (yystack.s_mark <= yystack.s_base) goto yyabort;
542 if (yychar == YYEOF) goto yyabort;
546 yys = yyname[YYTRANSLATE(yychar)];
547 printf("%sdebug: state %d, error recovery discards token %d (%s)\n",
548 YYPREFIX, yystate, yychar, yys);
558 printf("%sdebug: state %d, reducing by rule %d (%s)\n",
559 YYPREFIX, yystate, yyn, yyrule[yyn]);
563 yyval = yystack.l_mark[1-yym];
565 memset(&yyval, 0, sizeof yyval);
574 { printf("%d\n",yystack.l_mark[0]);}
578 { regs[yystack.l_mark[-2]] = yystack.l_mark[0]; }
582 { yyval = yystack.l_mark[-1]; }
586 { yyval = yystack.l_mark[-2] + yystack.l_mark[0]; }
590 { yyval = yystack.l_mark[-2] - yystack.l_mark[0]; }
594 { yyval = yystack.l_mark[-2] * yystack.l_mark[0]; }
598 { yyval = yystack.l_mark[-2] / yystack.l_mark[0]; }
602 { yyval = yystack.l_mark[-2] % yystack.l_mark[0]; }
606 { yyval = yystack.l_mark[-2] & yystack.l_mark[0]; }
610 { yyval = yystack.l_mark[-2] | yystack.l_mark[0]; }
614 { yyval = - yystack.l_mark[0]; }
618 { yyval = regs[yystack.l_mark[0]]; }
622 { yyval = yystack.l_mark[0]; (*base) = (yystack.l_mark[0]==0) ? 8 : 10; }
626 { yyval = (*base) * yystack.l_mark[-1] + yystack.l_mark[0]; }
628 #line 629 "calc2.tab.c"
630 yystack.s_mark -= yym;
631 yystate = *yystack.s_mark;
632 yystack.l_mark -= yym;
634 if (yystate == 0 && yym == 0)
638 printf("%sdebug: after reduction, shifting from state 0 to\
639 state %d\n", YYPREFIX, YYFINAL);
642 *++yystack.s_mark = YYFINAL;
643 *++yystack.l_mark = yyval;
646 if ((yychar = YYLEX) < 0) yychar = YYEOF;
650 yys = yyname[YYTRANSLATE(yychar)];
651 printf("%sdebug: state %d, reading %d (%s)\n",
652 YYPREFIX, YYFINAL, yychar, yys);
656 if (yychar == YYEOF) goto yyaccept;
659 if ((yyn = yygindex[yym]) && (yyn += yystate) >= 0 &&
660 yyn <= YYTABLESIZE && yycheck[yyn] == yystate)
661 yystate = yytable[yyn];
663 yystate = yydgoto[yym];
666 printf("%sdebug: after reduction, shifting from state %d \
667 to state %d\n", YYPREFIX, *yystack.s_mark, yystate);
669 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM)
673 *++yystack.s_mark = (YYINT) yystate;
674 *++yystack.l_mark = yyval;
678 YYERROR_CALL("yacc stack overflow");
681 yyfreestack(&yystack);
685 yyfreestack(&yystack);