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_syntax20_parse
19 #endif /* yyparse */
20
21 #ifndef yylex
22 #define yylex err_syntax20_lex
23 #endif /* yylex */
24
25 #ifndef yyerror
26 #define yyerror err_syntax20_error
27 #endif /* yyerror */
28
29 #ifndef yychar
30 #define yychar err_syntax20_char
31 #endif /* yychar */
32
33 #ifndef yyval
34 #define yyval err_syntax20_val
35 #endif /* yyval */
36
37 #ifndef yylval
38 #define yylval err_syntax20_lval
39 #endif /* yylval */
40
41 #ifndef yydebug
42 #define yydebug err_syntax20_debug
43 #endif /* yydebug */
44
45 #ifndef yynerrs
46 #define yynerrs err_syntax20_nerrs
47 #endif /* yynerrs */
48
49 #ifndef yyerrflag
50 #define yyerrflag err_syntax20_errflag
51 #endif /* yyerrflag */
52
53 #ifndef yylhs
54 #define yylhs err_syntax20_lhs
55 #endif /* yylhs */
56
57 #ifndef yylen
58 #define yylen err_syntax20_len
59 #endif /* yylen */
60
61 #ifndef yydefred
62 #define yydefred err_syntax20_defred
63 #endif /* yydefred */
64
65 #ifndef yydgoto
66 #define yydgoto err_syntax20_dgoto
67 #endif /* yydgoto */
68
69 #ifndef yysindex
70 #define yysindex err_syntax20_sindex
71 #endif /* yysindex */
72
73 #ifndef yyrindex
74 #define yyrindex err_syntax20_rindex
75 #endif /* yyrindex */
76
77 #ifndef yygindex
78 #define yygindex err_syntax20_gindex
79 #endif /* yygindex */
80
81 #ifndef yytable
82 #define yytable err_syntax20_table
83 #endif /* yytable */
84
85 #ifndef yycheck
86 #define yycheck err_syntax20_check
87 #endif /* yycheck */
88
89 #ifndef yyname
90 #define yyname err_syntax20_name
91 #endif /* yyname */
92
93 #ifndef yyrule
94 #define yyrule err_syntax20_rule
95 #endif /* yyrule */
96 #define YYPREFIX "err_syntax20_"
97
98 #define YYPURE 0
99
100 #line 2 "err_syntax20.y"
101 int yylex(void);
102 static void yyerror(const char *);
103 #line 104 "err_syntax20.tab.c"
104
105 /* compatibility with bison */
106 #ifdef YYPARSE_PARAM
107 /* compatibility with FreeBSD */
108 # ifdef YYPARSE_PARAM_TYPE
109 # define YYPARSE_DECL() yyparse(YYPARSE_PARAM_TYPE YYPARSE_PARAM)
110 # else
111 # define YYPARSE_DECL() yyparse(void *YYPARSE_PARAM)
112 # endif
113 #else
114 # define YYPARSE_DECL() yyparse(void)
115 #endif
116
117 /* Parameters sent to lex. */
118 #ifdef YYLEX_PARAM
119 # define YYLEX_DECL() yylex(void *YYLEX_PARAM)
120 # define YYLEX yylex(YYLEX_PARAM)
121 #else
122 # define YYLEX_DECL() yylex(void)
123 # define YYLEX yylex()
124 #endif
125
126 /* Parameters sent to yyerror. */
127 #ifndef YYERROR_DECL
128 #define YYERROR_DECL() yyerror(const char *s)
129 #endif
130 #ifndef YYERROR_CALL
131 #define YYERROR_CALL(msg) yyerror(msg)
132 #endif
133
134 extern int YYPARSE_DECL();
135
136 #define recur 257
137 #define YYERRCODE 256
138 typedef int YYINT;
139 static const YYINT err_syntax20_lhs[] = { -1,
140 0,
141 };
142 static const YYINT err_syntax20_len[] = { 2,
143 3,
144 };
145 static const YYINT err_syntax20_defred[] = { 0,
146 0, 0, 0, 1,
147 };
148 static const YYINT err_syntax20_dgoto[] = { 2,
149 };
150 static const YYINT err_syntax20_sindex[] = { -40,
151 -256, 0, -39, 0,
152 };
153 static const YYINT err_syntax20_rindex[] = { 0,
154 0, 0, 0, 0,
155 };
156 static const YYINT err_syntax20_gindex[] = { 0,
157 };
158 #define YYTABLESIZE 2
159 static const YYINT err_syntax20_table[] = { 1,
160 3, 4,
161 };
162 static const YYINT err_syntax20_check[] = { 40,
163 257, 41,
164 };
165 #define YYFINAL 2
166 #ifndef YYDEBUG
167 #define YYDEBUG 0
168 #endif
169 #define YYMAXTOKEN 257
170 #define YYUNDFTOKEN 260
171 #define YYTRANSLATE(a) ((a) > YYMAXTOKEN ? YYUNDFTOKEN : (a))
172 #if YYDEBUG
173 static const char *const err_syntax20_name[] = {
174
175 "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,
176 0,0,0,0,0,0,"'('","')'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
177 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
178 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
179 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
180 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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,"recur",0,0,
182 "illegal-symbol",
183 };
184 static const char *const err_syntax20_rule[] = {
185 "$accept : expr",
186 "expr : '(' recur ')'",
187
188 };
189 #endif
190
191 int yydebug;
192 int yynerrs;
193
194 int yyerrflag;
195 int yychar;
196 YYSTYPE yyval;
197 YYSTYPE yylval;
198
199 /* define the initial stack-sizes */
200 #ifdef YYSTACKSIZE
201 #undef YYMAXDEPTH
202 #define YYMAXDEPTH YYSTACKSIZE
203 #else
204 #ifdef YYMAXDEPTH
205 #define YYSTACKSIZE YYMAXDEPTH
206 #else
207 #define YYSTACKSIZE 10000
208 #define YYMAXDEPTH 10000
209 #endif
210 #endif
211
212 #define YYINITSTACKSIZE 200
213
214 typedef struct {
215 unsigned stacksize;
216 YYINT *s_base;
217 YYINT *s_mark;
218 YYINT *s_last;
219 YYSTYPE *l_base;
220 YYSTYPE *l_mark;
221 } YYSTACKDATA;
222 /* variables for the parser stack */
223 static YYSTACKDATA yystack;
224 #line 16 "err_syntax20.y"
225
226 #include <stdio.h>
227
228 int
main(void)229 main(void)
230 {
231 printf("yyparse() = %d\n", yyparse());
232 return 0;
233 }
234
235 int
yylex(void)236 yylex(void)
237 {
238 return -1;
239 }
240
241 static void
yyerror(const char * s)242 yyerror(const char* s)
243 {
244 printf("%s\n", s);
245 }
246 #line 247 "err_syntax20.tab.c"
247
248 #if YYDEBUG
249 #include <stdio.h> /* needed for printf */
250 #endif
251
252 #include <stdlib.h> /* needed for malloc, etc */
253 #include <string.h> /* needed for memset */
254
255 /* allocate initial stack or double stack size, up to YYMAXDEPTH */
yygrowstack(YYSTACKDATA * data)256 static int yygrowstack(YYSTACKDATA *data)
257 {
258 int i;
259 unsigned newsize;
260 YYINT *newss;
261 YYSTYPE *newvs;
262
263 if ((newsize = data->stacksize) == 0)
264 newsize = YYINITSTACKSIZE;
265 else if (newsize >= YYMAXDEPTH)
266 return YYENOMEM;
267 else if ((newsize *= 2) > YYMAXDEPTH)
268 newsize = YYMAXDEPTH;
269
270 i = (int) (data->s_mark - data->s_base);
271 newss = (YYINT *)realloc(data->s_base, newsize * sizeof(*newss));
272 if (newss == 0)
273 return YYENOMEM;
274
275 data->s_base = newss;
276 data->s_mark = newss + i;
277
278 newvs = (YYSTYPE *)realloc(data->l_base, newsize * sizeof(*newvs));
279 if (newvs == 0)
280 return YYENOMEM;
281
282 data->l_base = newvs;
283 data->l_mark = newvs + i;
284
285 data->stacksize = newsize;
286 data->s_last = data->s_base + newsize - 1;
287 return 0;
288 }
289
290 #if YYPURE || defined(YY_NO_LEAKS)
yyfreestack(YYSTACKDATA * data)291 static void yyfreestack(YYSTACKDATA *data)
292 {
293 free(data->s_base);
294 free(data->l_base);
295 memset(data, 0, sizeof(*data));
296 }
297 #else
298 #define yyfreestack(data) /* nothing */
299 #endif
300
301 #define YYABORT goto yyabort
302 #define YYREJECT goto yyabort
303 #define YYACCEPT goto yyaccept
304 #define YYERROR goto yyerrlab
305
306 int
YYPARSE_DECL()307 YYPARSE_DECL()
308 {
309 int yym, yyn, yystate;
310 #if YYDEBUG
311 const char *yys;
312
313 if ((yys = getenv("YYDEBUG")) != 0)
314 {
315 yyn = *yys;
316 if (yyn >= '0' && yyn <= '9')
317 yydebug = yyn - '0';
318 }
319 #endif
320
321 yynerrs = 0;
322 yyerrflag = 0;
323 yychar = YYEMPTY;
324 yystate = 0;
325
326 #if YYPURE
327 memset(&yystack, 0, sizeof(yystack));
328 #endif
329
330 if (yystack.s_base == NULL && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
331 yystack.s_mark = yystack.s_base;
332 yystack.l_mark = yystack.l_base;
333 yystate = 0;
334 *yystack.s_mark = 0;
335
336 yyloop:
337 if ((yyn = yydefred[yystate]) != 0) goto yyreduce;
338 if (yychar < 0)
339 {
340 if ((yychar = YYLEX) < 0) yychar = YYEOF;
341 #if YYDEBUG
342 if (yydebug)
343 {
344 yys = yyname[YYTRANSLATE(yychar)];
345 printf("%sdebug: state %d, reading %d (%s)\n",
346 YYPREFIX, yystate, yychar, yys);
347 }
348 #endif
349 }
350 if ((yyn = yysindex[yystate]) && (yyn += yychar) >= 0 &&
351 yyn <= YYTABLESIZE && yycheck[yyn] == 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)
359 {
360 goto yyoverflow;
361 }
362 yystate = yytable[yyn];
363 *++yystack.s_mark = yytable[yyn];
364 *++yystack.l_mark = yylval;
365 yychar = YYEMPTY;
366 if (yyerrflag > 0) --yyerrflag;
367 goto yyloop;
368 }
369 if ((yyn = yyrindex[yystate]) && (yyn += yychar) >= 0 &&
370 yyn <= YYTABLESIZE && yycheck[yyn] == yychar)
371 {
372 yyn = yytable[yyn];
373 goto yyreduce;
374 }
375 if (yyerrflag) goto yyinrecovery;
376
377 YYERROR_CALL("syntax error");
378
379 goto yyerrlab;
380
381 yyerrlab:
382 ++yynerrs;
383
384 yyinrecovery:
385 if (yyerrflag < 3)
386 {
387 yyerrflag = 3;
388 for (;;)
389 {
390 if ((yyn = yysindex[*yystack.s_mark]) && (yyn += YYERRCODE) >= 0 &&
391 yyn <= YYTABLESIZE && yycheck[yyn] == YYERRCODE)
392 {
393 #if YYDEBUG
394 if (yydebug)
395 printf("%sdebug: state %d, error recovery shifting\
396 to state %d\n", YYPREFIX, *yystack.s_mark, yytable[yyn]);
397 #endif
398 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM)
399 {
400 goto yyoverflow;
401 }
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 yys = yyname[YYTRANSLATE(yychar)];
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)
443 yyval = yystack.l_mark[1-yym];
444 else
445 memset(&yyval, 0, sizeof yyval);
446 switch (yyn)
447 {
448 case 1:
449 #line 12 "err_syntax20.y"
450 { yystack.l_mark[-1].rechk = 3; }
451 break;
452 #line 453 "err_syntax20.tab.c"
453 }
454 yystack.s_mark -= yym;
455 yystate = *yystack.s_mark;
456 yystack.l_mark -= yym;
457 yym = yylhs[yyn];
458 if (yystate == 0 && yym == 0)
459 {
460 #if YYDEBUG
461 if (yydebug)
462 printf("%sdebug: after reduction, shifting from state 0 to\
463 state %d\n", YYPREFIX, YYFINAL);
464 #endif
465 yystate = YYFINAL;
466 *++yystack.s_mark = YYFINAL;
467 *++yystack.l_mark = yyval;
468 if (yychar < 0)
469 {
470 if ((yychar = YYLEX) < 0) yychar = YYEOF;
471 #if YYDEBUG
472 if (yydebug)
473 {
474 yys = yyname[YYTRANSLATE(yychar)];
475 printf("%sdebug: state %d, reading %d (%s)\n",
476 YYPREFIX, YYFINAL, yychar, yys);
477 }
478 #endif
479 }
480 if (yychar == YYEOF) goto yyaccept;
481 goto yyloop;
482 }
483 if ((yyn = yygindex[yym]) && (yyn += yystate) >= 0 &&
484 yyn <= YYTABLESIZE && yycheck[yyn] == yystate)
485 yystate = yytable[yyn];
486 else
487 yystate = yydgoto[yym];
488 #if YYDEBUG
489 if (yydebug)
490 printf("%sdebug: after reduction, shifting from state %d \
491 to state %d\n", YYPREFIX, *yystack.s_mark, yystate);
492 #endif
493 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM)
494 {
495 goto yyoverflow;
496 }
497 *++yystack.s_mark = (YYINT) yystate;
498 *++yystack.l_mark = yyval;
499 goto yyloop;
500
501 yyoverflow:
502 YYERROR_CALL("yacc stack overflow");
503
504 yyabort:
505 yyfreestack(&yystack);
506 return (1);
507
508 yyaccept:
509 yyfreestack(&yystack);
510 return (0);
511 }
512