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",
290 /* define the initial stack-sizes */
293 #define YYMAXDEPTH YYSTACKSIZE
296 #define YYSTACKSIZE YYMAXDEPTH
298 #define YYSTACKSIZE 10000
299 #define YYMAXDEPTH 10000
303 #define YYINITSTACKSIZE 200
313 /* variables for the parser stack */
314 static YYSTACKDATA yystack;
316 /* start of programs */
319 extern int YYLEX_DECL();
328 while(!feof(stdin)) {
329 yyparse(regs, &base);
334 #define UNUSED(x) ((void)(x))
339 UNUSED(regs); /* %parse-param regs is not actually used here */
340 UNUSED(base); /* %parse-param base is not actually used here */
341 fprintf(stderr, "%s\n", s);
347 /* lexical analysis routine */
348 /* returns LETTER for a lower case letter, yylval = 0 through 25 */
349 /* return DIGIT for a digit, yylval = 0 through 9 */
350 /* all other characters are returned immediately */
354 while( (c=getchar()) == ' ' ) { /* skip blanks */ }
356 /* c is now nonblank */
363 yylval = (c - '0') % (*base);
368 #line 369 "calc2.tab.c"
371 #include <stdio.h> /* needed for printf */
374 #include <stdlib.h> /* needed for malloc, etc */
375 #include <string.h> /* needed for memset */
377 /* allocate initial stack or double stack size, up to YYMAXDEPTH */
378 static int yygrowstack(YYSTACKDATA *data)
385 if ((newsize = data->stacksize) == 0)
386 newsize = YYINITSTACKSIZE;
387 else if (newsize >= YYMAXDEPTH)
389 else if ((newsize *= 2) > YYMAXDEPTH)
390 newsize = YYMAXDEPTH;
392 i = (int) (data->s_mark - data->s_base);
393 newss = (YYINT *)realloc(data->s_base, newsize * sizeof(*newss));
397 data->s_base = newss;
398 data->s_mark = newss + i;
400 newvs = (YYSTYPE *)realloc(data->l_base, newsize * sizeof(*newvs));
404 data->l_base = newvs;
405 data->l_mark = newvs + i;
407 data->stacksize = newsize;
408 data->s_last = data->s_base + newsize - 1;
412 #if YYPURE || defined(YY_NO_LEAKS)
413 static void yyfreestack(YYSTACKDATA *data)
417 memset(data, 0, sizeof(*data));
420 #define yyfreestack(data) /* nothing */
423 #define YYABORT goto yyabort
424 #define YYREJECT goto yyabort
425 #define YYACCEPT goto yyaccept
426 #define YYERROR goto yyerrlab
431 int yym, yyn, yystate;
435 if ((yys = getenv("YYDEBUG")) != 0)
438 if (yyn >= '0' && yyn <= '9')
451 memset(&yystack, 0, sizeof(yystack));
454 if (yystack.s_base == NULL && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
455 yystack.s_mark = yystack.s_base;
456 yystack.l_mark = yystack.l_base;
461 if ((yyn = yydefred[yystate]) != 0) goto yyreduce;
465 if (yychar < 0) yychar = YYEOF;
469 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
470 printf("%sdebug: state %d, reading %d (%s)\n",
471 YYPREFIX, yystate, yychar, yys);
475 if (((yyn = yysindex[yystate]) != 0) && (yyn += yychar) >= 0 &&
476 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar)
480 printf("%sdebug: state %d, shifting to state %d\n",
481 YYPREFIX, yystate, yytable[yyn]);
483 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
484 yystate = yytable[yyn];
485 *++yystack.s_mark = yytable[yyn];
486 *++yystack.l_mark = yylval;
488 if (yyerrflag > 0) --yyerrflag;
491 if (((yyn = yyrindex[yystate]) != 0) && (yyn += yychar) >= 0 &&
492 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar)
497 if (yyerrflag != 0) goto yyinrecovery;
499 YYERROR_CALL("syntax error");
501 goto yyerrlab; /* redundant goto avoids 'unused label' warning */
511 if (((yyn = yysindex[*yystack.s_mark]) != 0) && (yyn += YYERRCODE) >= 0 &&
512 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) YYERRCODE)
516 printf("%sdebug: state %d, error recovery shifting\
517 to state %d\n", YYPREFIX, *yystack.s_mark, yytable[yyn]);
519 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
520 yystate = yytable[yyn];
521 *++yystack.s_mark = yytable[yyn];
522 *++yystack.l_mark = yylval;
529 printf("%sdebug: error recovery discarding state %d\n",
530 YYPREFIX, *yystack.s_mark);
532 if (yystack.s_mark <= yystack.s_base) goto yyabort;
540 if (yychar == YYEOF) goto yyabort;
544 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
545 printf("%sdebug: state %d, error recovery discards token %d (%s)\n",
546 YYPREFIX, yystate, yychar, yys);
556 printf("%sdebug: state %d, reducing by rule %d (%s)\n",
557 YYPREFIX, yystate, yyn, yyrule[yyn]);
561 yyval = yystack.l_mark[1-yym];
563 memset(&yyval, 0, sizeof yyval);
573 { printf("%d\n",yystack.l_mark[0]);}
577 { regs[yystack.l_mark[-2]] = yystack.l_mark[0]; }
581 { yyval = yystack.l_mark[-1]; }
585 { yyval = yystack.l_mark[-2] + yystack.l_mark[0]; }
589 { yyval = yystack.l_mark[-2] - yystack.l_mark[0]; }
593 { yyval = yystack.l_mark[-2] * yystack.l_mark[0]; }
597 { yyval = yystack.l_mark[-2] / yystack.l_mark[0]; }
601 { yyval = yystack.l_mark[-2] % yystack.l_mark[0]; }
605 { yyval = yystack.l_mark[-2] & yystack.l_mark[0]; }
609 { yyval = yystack.l_mark[-2] | yystack.l_mark[0]; }
613 { yyval = - yystack.l_mark[0]; }
617 { yyval = regs[yystack.l_mark[0]]; }
621 { yyval = yystack.l_mark[0]; (*base) = (yystack.l_mark[0]==0) ? 8 : 10; }
625 { yyval = (*base) * yystack.l_mark[-1] + yystack.l_mark[0]; }
627 #line 628 "calc2.tab.c"
629 yystack.s_mark -= yym;
630 yystate = *yystack.s_mark;
631 yystack.l_mark -= yym;
633 if (yystate == 0 && yym == 0)
637 printf("%sdebug: after reduction, shifting from state 0 to\
638 state %d\n", YYPREFIX, YYFINAL);
641 *++yystack.s_mark = YYFINAL;
642 *++yystack.l_mark = yyval;
646 if (yychar < 0) yychar = YYEOF;
650 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
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]) != 0) && (yyn += yystate) >= 0 &&
660 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) 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) goto yyoverflow;
670 *++yystack.s_mark = (YYINT) yystate;
671 *++yystack.l_mark = yyval;
675 YYERROR_CALL("yacc stack overflow");
678 yyfreestack(&yystack);
682 yyfreestack(&yystack);