1 /* original parser id follows */
2 /* yysccsid[] = "@(#)yaccpar 1.9 (Berkeley) 02/21/93" */
3 /* (use YYMAJOR/YYMINOR for ifdefs dependent on parser version) */
4
5 #define YYBYACC 1
6 #define YYMAJOR 1
7 #define YYMINOR 9
8 #define YYCHECK "yyyymmdd"
9
10 #define YYEMPTY (-1)
11 #define yyclearin (yychar = YYEMPTY)
12 #define yyerrok (yyerrflag = 0)
13 #define YYRECOVERING() (yyerrflag != 0)
14 #define YYENOMEM (-2)
15 #define YYEOF 0
16
17 #ifndef yyparse
18 #define yyparse err_syntax18_parse
19 #endif /* yyparse */
20
21 #ifndef yylex
22 #define yylex err_syntax18_lex
23 #endif /* yylex */
24
25 #ifndef yyerror
26 #define yyerror err_syntax18_error
27 #endif /* yyerror */
28
29 #ifndef yychar
30 #define yychar err_syntax18_char
31 #endif /* yychar */
32
33 #ifndef yyval
34 #define yyval err_syntax18_val
35 #endif /* yyval */
36
37 #ifndef yylval
38 #define yylval err_syntax18_lval
39 #endif /* yylval */
40
41 #ifndef yydebug
42 #define yydebug err_syntax18_debug
43 #endif /* yydebug */
44
45 #ifndef yynerrs
46 #define yynerrs err_syntax18_nerrs
47 #endif /* yynerrs */
48
49 #ifndef yyerrflag
50 #define yyerrflag err_syntax18_errflag
51 #endif /* yyerrflag */
52
53 #ifndef yylhs
54 #define yylhs err_syntax18_lhs
55 #endif /* yylhs */
56
57 #ifndef yylen
58 #define yylen err_syntax18_len
59 #endif /* yylen */
60
61 #ifndef yydefred
62 #define yydefred err_syntax18_defred
63 #endif /* yydefred */
64
65 #ifndef yydgoto
66 #define yydgoto err_syntax18_dgoto
67 #endif /* yydgoto */
68
69 #ifndef yysindex
70 #define yysindex err_syntax18_sindex
71 #endif /* yysindex */
72
73 #ifndef yyrindex
74 #define yyrindex err_syntax18_rindex
75 #endif /* yyrindex */
76
77 #ifndef yygindex
78 #define yygindex err_syntax18_gindex
79 #endif /* yygindex */
80
81 #ifndef yytable
82 #define yytable err_syntax18_table
83 #endif /* yytable */
84
85 #ifndef yycheck
86 #define yycheck err_syntax18_check
87 #endif /* yycheck */
88
89 #ifndef yyname
90 #define yyname err_syntax18_name
91 #endif /* yyname */
92
93 #ifndef yyrule
94 #define yyrule err_syntax18_rule
95 #endif /* yyrule */
96 #define YYPREFIX "err_syntax18_"
97
98 #define YYPURE 0
99
100 #line 2 "err_syntax18.y"
101 int yylex(void);
102 static void yyerror(const char *);
103 #line 104 "err_syntax18.tab.c"
104
105 #if ! defined(YYSTYPE) && ! defined(YYSTYPE_IS_DECLARED)
106 /* Default: YYSTYPE is the semantic value type. */
107 typedef int YYSTYPE;
108 # define YYSTYPE_IS_DECLARED 1
109 #endif
110
111 /* compatibility with bison */
112 #ifdef YYPARSE_PARAM
113 /* compatibility with FreeBSD */
114 # ifdef YYPARSE_PARAM_TYPE
115 # define YYPARSE_DECL() yyparse(YYPARSE_PARAM_TYPE YYPARSE_PARAM)
116 # else
117 # define YYPARSE_DECL() yyparse(void *YYPARSE_PARAM)
118 # endif
119 #else
120 # define YYPARSE_DECL() yyparse(void)
121 #endif
122
123 /* Parameters sent to lex. */
124 #ifdef YYLEX_PARAM
125 # define YYLEX_DECL() yylex(void *YYLEX_PARAM)
126 # define YYLEX yylex(YYLEX_PARAM)
127 #else
128 # define YYLEX_DECL() yylex(void)
129 # define YYLEX yylex()
130 #endif
131
132 /* Parameters sent to yyerror. */
133 #ifndef YYERROR_DECL
134 #define YYERROR_DECL() yyerror(const char *s)
135 #endif
136 #ifndef YYERROR_CALL
137 #define YYERROR_CALL(msg) yyerror(msg)
138 #endif
139
140 extern int YYPARSE_DECL();
141
142 #define YYERRCODE 256
143 typedef int YYINT;
144 static const YYINT err_syntax18_lhs[] = { -1,
145 0,
146 };
147 static const YYINT err_syntax18_len[] = { 2,
148 3,
149 };
150 static const YYINT err_syntax18_defred[] = { 0,
151 0, 0, 0, 1,
152 };
153 static const YYINT err_syntax18_dgoto[] = { 2,
154 };
155 static const YYINT err_syntax18_sindex[] = { -40,
156 -40, 0, -39, 0,
157 };
158 static const YYINT err_syntax18_rindex[] = { 0,
159 0, 0, 0, 0,
160 };
161 static const YYINT err_syntax18_gindex[] = { 2,
162 };
163 #define YYTABLESIZE 3
164 static const YYINT err_syntax18_table[] = { 1,
165 0, 4, 3,
166 };
167 static const YYINT err_syntax18_check[] = { 40,
168 -1, 41, 1,
169 };
170 #define YYFINAL 2
171 #ifndef YYDEBUG
172 #define YYDEBUG 0
173 #endif
174 #define YYMAXTOKEN 256
175 #define YYUNDFTOKEN 259
176 #define YYTRANSLATE(a) ((a) > YYMAXTOKEN ? YYUNDFTOKEN : (a))
177 #if YYDEBUG
178 static const char *const err_syntax18_name[] = {
179
180 "end-of-file",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,
181 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,
182 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,
183 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,
184 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,
185 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,
186 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,"illegal-symbol",
187 };
188 static const char *const err_syntax18_rule[] = {
189 "$accept : expr",
190 "expr : '(' expr ')'",
191
192 };
193 #endif
194
195 int yydebug;
196 int yynerrs;
197
198 int yyerrflag;
199 int yychar;
200 YYSTYPE yyval;
201 YYSTYPE yylval;
202
203 /* define the initial stack-sizes */
204 #ifdef YYSTACKSIZE
205 #undef YYMAXDEPTH
206 #define YYMAXDEPTH YYSTACKSIZE
207 #else
208 #ifdef YYMAXDEPTH
209 #define YYSTACKSIZE YYMAXDEPTH
210 #else
211 #define YYSTACKSIZE 10000
212 #define YYMAXDEPTH 10000
213 #endif
214 #endif
215
216 #define YYINITSTACKSIZE 200
217
218 typedef struct {
219 unsigned stacksize;
220 YYINT *s_base;
221 YYINT *s_mark;
222 YYINT *s_last;
223 YYSTYPE *l_base;
224 YYSTYPE *l_mark;
225 } YYSTACKDATA;
226 /* variables for the parser stack */
227 static YYSTACKDATA yystack;
228 #line 13 "err_syntax18.y"
229
230 #include <stdio.h>
231
232 int
main(void)233 main(void)
234 {
235 printf("yyparse() = %d\n", yyparse());
236 return 0;
237 }
238
239 int
yylex(void)240 yylex(void)
241 {
242 return -1;
243 }
244
245 static void
yyerror(const char * s)246 yyerror(const char* s)
247 {
248 printf("%s\n", s);
249 }
250 #line 251 "err_syntax18.tab.c"
251
252 #if YYDEBUG
253 #include <stdio.h> /* needed for printf */
254 #endif
255
256 #include <stdlib.h> /* needed for malloc, etc */
257 #include <string.h> /* needed for memset */
258
259 /* allocate initial stack or double stack size, up to YYMAXDEPTH */
yygrowstack(YYSTACKDATA * data)260 static int yygrowstack(YYSTACKDATA *data)
261 {
262 int i;
263 unsigned newsize;
264 YYINT *newss;
265 YYSTYPE *newvs;
266
267 if ((newsize = data->stacksize) == 0)
268 newsize = YYINITSTACKSIZE;
269 else if (newsize >= YYMAXDEPTH)
270 return YYENOMEM;
271 else if ((newsize *= 2) > YYMAXDEPTH)
272 newsize = YYMAXDEPTH;
273
274 i = (int) (data->s_mark - data->s_base);
275 newss = (YYINT *)realloc(data->s_base, newsize * sizeof(*newss));
276 if (newss == 0)
277 return YYENOMEM;
278
279 data->s_base = newss;
280 data->s_mark = newss + i;
281
282 newvs = (YYSTYPE *)realloc(data->l_base, newsize * sizeof(*newvs));
283 if (newvs == 0)
284 return YYENOMEM;
285
286 data->l_base = newvs;
287 data->l_mark = newvs + i;
288
289 data->stacksize = newsize;
290 data->s_last = data->s_base + newsize - 1;
291 return 0;
292 }
293
294 #if YYPURE || defined(YY_NO_LEAKS)
yyfreestack(YYSTACKDATA * data)295 static void yyfreestack(YYSTACKDATA *data)
296 {
297 free(data->s_base);
298 free(data->l_base);
299 memset(data, 0, sizeof(*data));
300 }
301 #else
302 #define yyfreestack(data) /* nothing */
303 #endif
304
305 #define YYABORT goto yyabort
306 #define YYREJECT goto yyabort
307 #define YYACCEPT goto yyaccept
308 #define YYERROR goto yyerrlab
309
310 int
YYPARSE_DECL()311 YYPARSE_DECL()
312 {
313 int yym, yyn, yystate;
314 #if YYDEBUG
315 const char *yys;
316
317 if ((yys = getenv("YYDEBUG")) != 0)
318 {
319 yyn = *yys;
320 if (yyn >= '0' && yyn <= '9')
321 yydebug = yyn - '0';
322 }
323 #endif
324
325 yym = 0;
326 yyn = 0;
327 yynerrs = 0;
328 yyerrflag = 0;
329 yychar = YYEMPTY;
330 yystate = 0;
331
332 #if YYPURE
333 memset(&yystack, 0, sizeof(yystack));
334 #endif
335
336 if (yystack.s_base == NULL && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
337 yystack.s_mark = yystack.s_base;
338 yystack.l_mark = yystack.l_base;
339 yystate = 0;
340 *yystack.s_mark = 0;
341
342 yyloop:
343 if ((yyn = yydefred[yystate]) != 0) goto yyreduce;
344 if (yychar < 0)
345 {
346 yychar = YYLEX;
347 if (yychar < 0) yychar = YYEOF;
348 #if YYDEBUG
349 if (yydebug)
350 {
351 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
352 printf("%sdebug: state %d, reading %d (%s)\n",
353 YYPREFIX, yystate, yychar, yys);
354 }
355 #endif
356 }
357 if (((yyn = yysindex[yystate]) != 0) && (yyn += yychar) >= 0 &&
358 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar)
359 {
360 #if YYDEBUG
361 if (yydebug)
362 printf("%sdebug: state %d, shifting to state %d\n",
363 YYPREFIX, yystate, yytable[yyn]);
364 #endif
365 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
366 yystate = yytable[yyn];
367 *++yystack.s_mark = yytable[yyn];
368 *++yystack.l_mark = yylval;
369 yychar = YYEMPTY;
370 if (yyerrflag > 0) --yyerrflag;
371 goto yyloop;
372 }
373 if (((yyn = yyrindex[yystate]) != 0) && (yyn += yychar) >= 0 &&
374 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar)
375 {
376 yyn = yytable[yyn];
377 goto yyreduce;
378 }
379 if (yyerrflag != 0) goto yyinrecovery;
380
381 YYERROR_CALL("syntax error");
382
383 goto yyerrlab; /* redundant goto avoids 'unused label' warning */
384 yyerrlab:
385 ++yynerrs;
386
387 yyinrecovery:
388 if (yyerrflag < 3)
389 {
390 yyerrflag = 3;
391 for (;;)
392 {
393 if (((yyn = yysindex[*yystack.s_mark]) != 0) && (yyn += YYERRCODE) >= 0 &&
394 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) YYERRCODE)
395 {
396 #if YYDEBUG
397 if (yydebug)
398 printf("%sdebug: state %d, error recovery shifting\
399 to state %d\n", YYPREFIX, *yystack.s_mark, yytable[yyn]);
400 #endif
401 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
402 yystate = yytable[yyn];
403 *++yystack.s_mark = yytable[yyn];
404 *++yystack.l_mark = yylval;
405 goto yyloop;
406 }
407 else
408 {
409 #if YYDEBUG
410 if (yydebug)
411 printf("%sdebug: error recovery discarding state %d\n",
412 YYPREFIX, *yystack.s_mark);
413 #endif
414 if (yystack.s_mark <= yystack.s_base) goto yyabort;
415 --yystack.s_mark;
416 --yystack.l_mark;
417 }
418 }
419 }
420 else
421 {
422 if (yychar == YYEOF) goto yyabort;
423 #if YYDEBUG
424 if (yydebug)
425 {
426 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
427 printf("%sdebug: state %d, error recovery discards token %d (%s)\n",
428 YYPREFIX, yystate, yychar, yys);
429 }
430 #endif
431 yychar = YYEMPTY;
432 goto yyloop;
433 }
434
435 yyreduce:
436 #if YYDEBUG
437 if (yydebug)
438 printf("%sdebug: state %d, reducing by rule %d (%s)\n",
439 YYPREFIX, yystate, yyn, yyrule[yyn]);
440 #endif
441 yym = yylen[yyn];
442 if (yym > 0)
443 yyval = yystack.l_mark[1-yym];
444 else
445 memset(&yyval, 0, sizeof yyval);
446
447 switch (yyn)
448 {
449 case 1:
450 #line 9 "err_syntax18.y"
451 { yyval = yystack.l_mark[1]; }
452 break;
453 #line 454 "err_syntax18.tab.c"
454 }
455 yystack.s_mark -= yym;
456 yystate = *yystack.s_mark;
457 yystack.l_mark -= yym;
458 yym = yylhs[yyn];
459 if (yystate == 0 && yym == 0)
460 {
461 #if YYDEBUG
462 if (yydebug)
463 printf("%sdebug: after reduction, shifting from state 0 to\
464 state %d\n", YYPREFIX, YYFINAL);
465 #endif
466 yystate = YYFINAL;
467 *++yystack.s_mark = YYFINAL;
468 *++yystack.l_mark = yyval;
469 if (yychar < 0)
470 {
471 yychar = YYLEX;
472 if (yychar < 0) yychar = YYEOF;
473 #if YYDEBUG
474 if (yydebug)
475 {
476 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
477 printf("%sdebug: state %d, reading %d (%s)\n",
478 YYPREFIX, YYFINAL, yychar, yys);
479 }
480 #endif
481 }
482 if (yychar == YYEOF) goto yyaccept;
483 goto yyloop;
484 }
485 if (((yyn = yygindex[yym]) != 0) && (yyn += yystate) >= 0 &&
486 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yystate)
487 yystate = yytable[yyn];
488 else
489 yystate = yydgoto[yym];
490 #if YYDEBUG
491 if (yydebug)
492 printf("%sdebug: after reduction, shifting from state %d \
493 to state %d\n", YYPREFIX, *yystack.s_mark, yystate);
494 #endif
495 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
496 *++yystack.s_mark = (YYINT) yystate;
497 *++yystack.l_mark = yyval;
498 goto yyloop;
499
500 yyoverflow:
501 YYERROR_CALL("yacc stack overflow");
502
503 yyabort:
504 yyfreestack(&yystack);
505 return (1);
506
507 yyaccept:
508 yyfreestack(&yystack);
509 return (0);
510 }
511