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 yym = 0;
322 yyn = 0;
323 yynerrs = 0;
324 yyerrflag = 0;
325 yychar = YYEMPTY;
326 yystate = 0;
327
328 #if YYPURE
329 memset(&yystack, 0, sizeof(yystack));
330 #endif
331
332 if (yystack.s_base == NULL && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
333 yystack.s_mark = yystack.s_base;
334 yystack.l_mark = yystack.l_base;
335 yystate = 0;
336 *yystack.s_mark = 0;
337
338 yyloop:
339 if ((yyn = yydefred[yystate]) != 0) goto yyreduce;
340 if (yychar < 0)
341 {
342 yychar = YYLEX;
343 if (yychar < 0) yychar = YYEOF;
344 #if YYDEBUG
345 if (yydebug)
346 {
347 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
348 printf("%sdebug: state %d, reading %d (%s)\n",
349 YYPREFIX, yystate, yychar, yys);
350 }
351 #endif
352 }
353 if (((yyn = yysindex[yystate]) != 0) && (yyn += yychar) >= 0 &&
354 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar)
355 {
356 #if YYDEBUG
357 if (yydebug)
358 printf("%sdebug: state %d, shifting to state %d\n",
359 YYPREFIX, yystate, yytable[yyn]);
360 #endif
361 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
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]) != 0) && (yyn += yychar) >= 0 &&
370 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar)
371 {
372 yyn = yytable[yyn];
373 goto yyreduce;
374 }
375 if (yyerrflag != 0) goto yyinrecovery;
376
377 YYERROR_CALL("syntax error");
378
379 goto yyerrlab; /* redundant goto avoids 'unused label' warning */
380 yyerrlab:
381 ++yynerrs;
382
383 yyinrecovery:
384 if (yyerrflag < 3)
385 {
386 yyerrflag = 3;
387 for (;;)
388 {
389 if (((yyn = yysindex[*yystack.s_mark]) != 0) && (yyn += YYERRCODE) >= 0 &&
390 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) YYERRCODE)
391 {
392 #if YYDEBUG
393 if (yydebug)
394 printf("%sdebug: state %d, error recovery shifting\
395 to state %d\n", YYPREFIX, *yystack.s_mark, yytable[yyn]);
396 #endif
397 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
398 yystate = yytable[yyn];
399 *++yystack.s_mark = yytable[yyn];
400 *++yystack.l_mark = yylval;
401 goto yyloop;
402 }
403 else
404 {
405 #if YYDEBUG
406 if (yydebug)
407 printf("%sdebug: error recovery discarding state %d\n",
408 YYPREFIX, *yystack.s_mark);
409 #endif
410 if (yystack.s_mark <= yystack.s_base) goto yyabort;
411 --yystack.s_mark;
412 --yystack.l_mark;
413 }
414 }
415 }
416 else
417 {
418 if (yychar == YYEOF) goto yyabort;
419 #if YYDEBUG
420 if (yydebug)
421 {
422 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
423 printf("%sdebug: state %d, error recovery discards token %d (%s)\n",
424 YYPREFIX, yystate, yychar, yys);
425 }
426 #endif
427 yychar = YYEMPTY;
428 goto yyloop;
429 }
430
431 yyreduce:
432 #if YYDEBUG
433 if (yydebug)
434 printf("%sdebug: state %d, reducing by rule %d (%s)\n",
435 YYPREFIX, yystate, yyn, yyrule[yyn]);
436 #endif
437 yym = yylen[yyn];
438 if (yym > 0)
439 yyval = yystack.l_mark[1-yym];
440 else
441 memset(&yyval, 0, sizeof yyval);
442
443 switch (yyn)
444 {
445 case 1:
446 #line 12 "err_syntax20.y"
447 { yystack.l_mark[-1].rechk = 3; }
448 break;
449 #line 450 "err_syntax20.tab.c"
450 }
451 yystack.s_mark -= yym;
452 yystate = *yystack.s_mark;
453 yystack.l_mark -= yym;
454 yym = yylhs[yyn];
455 if (yystate == 0 && yym == 0)
456 {
457 #if YYDEBUG
458 if (yydebug)
459 printf("%sdebug: after reduction, shifting from state 0 to\
460 state %d\n", YYPREFIX, YYFINAL);
461 #endif
462 yystate = YYFINAL;
463 *++yystack.s_mark = YYFINAL;
464 *++yystack.l_mark = yyval;
465 if (yychar < 0)
466 {
467 yychar = YYLEX;
468 if (yychar < 0) yychar = YYEOF;
469 #if YYDEBUG
470 if (yydebug)
471 {
472 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
473 printf("%sdebug: state %d, reading %d (%s)\n",
474 YYPREFIX, YYFINAL, yychar, yys);
475 }
476 #endif
477 }
478 if (yychar == YYEOF) goto yyaccept;
479 goto yyloop;
480 }
481 if (((yyn = yygindex[yym]) != 0) && (yyn += yystate) >= 0 &&
482 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yystate)
483 yystate = yytable[yyn];
484 else
485 yystate = yydgoto[yym];
486 #if YYDEBUG
487 if (yydebug)
488 printf("%sdebug: after reduction, shifting from state %d \
489 to state %d\n", YYPREFIX, *yystack.s_mark, yystate);
490 #endif
491 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
492 *++yystack.s_mark = (YYINT) yystate;
493 *++yystack.l_mark = yyval;
494 goto yyloop;
495
496 yyoverflow:
497 YYERROR_CALL("yacc stack overflow");
498
499 yyabort:
500 yyfreestack(&yystack);
501 return (1);
502
503 yyaccept:
504 yyfreestack(&yystack);
505 return (0);
506 }
507