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 2
7 #define YYMINOR 0
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 #if YYDEBUG
198 int yydebug;
199 #endif
200
201 int yyerrflag;
202 int yychar;
203 YYSTYPE yyval;
204 YYSTYPE yylval;
205 int yynerrs;
206
207 /* define the initial stack-sizes */
208 #ifdef YYSTACKSIZE
209 #undef YYMAXDEPTH
210 #define YYMAXDEPTH YYSTACKSIZE
211 #else
212 #ifdef YYMAXDEPTH
213 #define YYSTACKSIZE YYMAXDEPTH
214 #else
215 #define YYSTACKSIZE 10000
216 #define YYMAXDEPTH 10000
217 #endif
218 #endif
219
220 #define YYINITSTACKSIZE 200
221
222 typedef struct {
223 unsigned stacksize;
224 YYINT *s_base;
225 YYINT *s_mark;
226 YYINT *s_last;
227 YYSTYPE *l_base;
228 YYSTYPE *l_mark;
229 } YYSTACKDATA;
230 /* variables for the parser stack */
231 static YYSTACKDATA yystack;
232 #line 13 "empty.y"
233
234 #include <stdio.h>
235
236 static int
YYLEX_DECL()237 YYLEX_DECL() {
238 return -1;
239 }
240
241 static void
YYERROR_DECL()242 YYERROR_DECL() {
243 printf("%s\n",s);
244 }
245 #line 246 "empty.tab.c"
246
247 #if YYDEBUG
248 #include <stdio.h> /* needed for printf */
249 #endif
250
251 #include <stdlib.h> /* needed for malloc, etc */
252 #include <string.h> /* needed for memset */
253
254 /* allocate initial stack or double stack size, up to YYMAXDEPTH */
yygrowstack(YYSTACKDATA * data)255 static int yygrowstack(YYSTACKDATA *data)
256 {
257 int i;
258 unsigned newsize;
259 YYINT *newss;
260 YYSTYPE *newvs;
261
262 if ((newsize = data->stacksize) == 0)
263 newsize = YYINITSTACKSIZE;
264 else if (newsize >= YYMAXDEPTH)
265 return YYENOMEM;
266 else if ((newsize *= 2) > YYMAXDEPTH)
267 newsize = YYMAXDEPTH;
268
269 i = (int) (data->s_mark - data->s_base);
270 newss = (YYINT *)realloc(data->s_base, newsize * sizeof(*newss));
271 if (newss == NULL)
272 return YYENOMEM;
273
274 data->s_base = newss;
275 data->s_mark = newss + i;
276
277 newvs = (YYSTYPE *)realloc(data->l_base, newsize * sizeof(*newvs));
278 if (newvs == NULL)
279 return YYENOMEM;
280
281 data->l_base = newvs;
282 data->l_mark = newvs + i;
283
284 data->stacksize = newsize;
285 data->s_last = data->s_base + newsize - 1;
286 return 0;
287 }
288
289 #if YYPURE || defined(YY_NO_LEAKS)
yyfreestack(YYSTACKDATA * data)290 static void yyfreestack(YYSTACKDATA *data)
291 {
292 free(data->s_base);
293 free(data->l_base);
294 memset(data, 0, sizeof(*data));
295 }
296 #else
297 #define yyfreestack(data) /* nothing */
298 #endif
299
300 #define YYABORT goto yyabort
301 #define YYREJECT goto yyabort
302 #define YYACCEPT goto yyaccept
303 #define YYERROR goto yyerrlab
304
305 int
YYPARSE_DECL()306 YYPARSE_DECL()
307 {
308 int yym, yyn, yystate;
309 #if YYDEBUG
310 const char *yys;
311
312 if ((yys = getenv("YYDEBUG")) != NULL)
313 {
314 yyn = *yys;
315 if (yyn >= '0' && yyn <= '9')
316 yydebug = yyn - '0';
317 }
318 #endif
319
320 /* yym is set below */
321 /* yyn is set below */
322 yynerrs = 0;
323 yyerrflag = 0;
324 yychar = YYEMPTY;
325 yystate = 0;
326
327 #if YYPURE
328 memset(&yystack, 0, sizeof(yystack));
329 #endif
330
331 if (yystack.s_base == NULL && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
332 yystack.s_mark = yystack.s_base;
333 yystack.l_mark = yystack.l_base;
334 yystate = 0;
335 *yystack.s_mark = 0;
336
337 yyloop:
338 if ((yyn = yydefred[yystate]) != 0) goto yyreduce;
339 if (yychar < 0)
340 {
341 yychar = YYLEX;
342 if (yychar < 0) yychar = YYEOF;
343 #if YYDEBUG
344 if (yydebug)
345 {
346 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
347 printf("%sdebug: state %d, reading %d (%s)\n",
348 YYPREFIX, yystate, yychar, yys);
349 }
350 #endif
351 }
352 if (((yyn = yysindex[yystate]) != 0) && (yyn += yychar) >= 0 &&
353 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar)
354 {
355 #if YYDEBUG
356 if (yydebug)
357 printf("%sdebug: state %d, shifting to state %d\n",
358 YYPREFIX, yystate, yytable[yyn]);
359 #endif
360 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
361 yystate = yytable[yyn];
362 *++yystack.s_mark = yytable[yyn];
363 *++yystack.l_mark = yylval;
364 yychar = YYEMPTY;
365 if (yyerrflag > 0) --yyerrflag;
366 goto yyloop;
367 }
368 if (((yyn = yyrindex[yystate]) != 0) && (yyn += yychar) >= 0 &&
369 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar)
370 {
371 yyn = yytable[yyn];
372 goto yyreduce;
373 }
374 if (yyerrflag != 0) goto yyinrecovery;
375
376 YYERROR_CALL("syntax error");
377
378 goto yyerrlab; /* redundant goto avoids 'unused label' warning */
379 yyerrlab:
380 ++yynerrs;
381
382 yyinrecovery:
383 if (yyerrflag < 3)
384 {
385 yyerrflag = 3;
386 for (;;)
387 {
388 if (((yyn = yysindex[*yystack.s_mark]) != 0) && (yyn += YYERRCODE) >= 0 &&
389 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) YYERRCODE)
390 {
391 #if YYDEBUG
392 if (yydebug)
393 printf("%sdebug: state %d, error recovery shifting\
394 to state %d\n", YYPREFIX, *yystack.s_mark, yytable[yyn]);
395 #endif
396 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
397 yystate = yytable[yyn];
398 *++yystack.s_mark = yytable[yyn];
399 *++yystack.l_mark = yylval;
400 goto yyloop;
401 }
402 else
403 {
404 #if YYDEBUG
405 if (yydebug)
406 printf("%sdebug: error recovery discarding state %d\n",
407 YYPREFIX, *yystack.s_mark);
408 #endif
409 if (yystack.s_mark <= yystack.s_base) goto yyabort;
410 --yystack.s_mark;
411 --yystack.l_mark;
412 }
413 }
414 }
415 else
416 {
417 if (yychar == YYEOF) goto yyabort;
418 #if YYDEBUG
419 if (yydebug)
420 {
421 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
422 printf("%sdebug: state %d, error recovery discards token %d (%s)\n",
423 YYPREFIX, yystate, yychar, yys);
424 }
425 #endif
426 yychar = YYEMPTY;
427 goto yyloop;
428 }
429
430 yyreduce:
431 #if YYDEBUG
432 if (yydebug)
433 printf("%sdebug: state %d, reducing by rule %d (%s)\n",
434 YYPREFIX, yystate, yyn, yyrule[yyn]);
435 #endif
436 yym = yylen[yyn];
437 if (yym > 0)
438 yyval = yystack.l_mark[1-yym];
439 else
440 memset(&yyval, 0, sizeof yyval);
441
442 switch (yyn)
443 {
444 }
445 yystack.s_mark -= yym;
446 yystate = *yystack.s_mark;
447 yystack.l_mark -= yym;
448 yym = yylhs[yyn];
449 if (yystate == 0 && yym == 0)
450 {
451 #if YYDEBUG
452 if (yydebug)
453 printf("%sdebug: after reduction, shifting from state 0 to\
454 state %d\n", YYPREFIX, YYFINAL);
455 #endif
456 yystate = YYFINAL;
457 *++yystack.s_mark = YYFINAL;
458 *++yystack.l_mark = yyval;
459 if (yychar < 0)
460 {
461 yychar = YYLEX;
462 if (yychar < 0) yychar = YYEOF;
463 #if YYDEBUG
464 if (yydebug)
465 {
466 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
467 printf("%sdebug: state %d, reading %d (%s)\n",
468 YYPREFIX, YYFINAL, yychar, yys);
469 }
470 #endif
471 }
472 if (yychar == YYEOF) goto yyaccept;
473 goto yyloop;
474 }
475 if (((yyn = yygindex[yym]) != 0) && (yyn += yystate) >= 0 &&
476 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yystate)
477 yystate = yytable[yyn];
478 else
479 yystate = yydgoto[yym];
480 #if YYDEBUG
481 if (yydebug)
482 printf("%sdebug: after reduction, shifting from state %d \
483 to state %d\n", YYPREFIX, *yystack.s_mark, yystate);
484 #endif
485 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
486 *++yystack.s_mark = (YYINT) yystate;
487 *++yystack.l_mark = yyval;
488 goto yyloop;
489
490 yyoverflow:
491 YYERROR_CALL("yacc stack overflow");
492
493 yyabort:
494 yyfreestack(&yystack);
495 return (1);
496
497 yyaccept:
498 yyfreestack(&yystack);
499 return (0);
500 }
501