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