1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
|
#line 2 "syn.y"
#include "rc.h"
#line 19 "syn.y"
typedef union {
Tree *tree;
} YYSTYPE;
extern int yyerrflag;
#ifndef YYMAXDEPTH
#define YYMAXDEPTH 150
#endif
YYSTYPE yylval;
YYSTYPE yyval;
#define IF 57346
#define WHILE 57347
#define FOR 57348
#define SWITCH 57349
#define NOT 57350
#define ANDAND 57351
#define OROR 57352
#define BANG 57353
#define SUBSHELL 57354
#define PIPE 57355
#define COUNT 57356
#define SUB 57357
#define IN 57358
#define TWIDDLE 57359
#define FN 57360
#define WORD 57361
#define REDIR 57362
#define DUP 57363
#define SIMPLE 57364
#define ARGLIST 57365
#define WORDS 57366
#define BRACE 57367
#define PAREN 57368
#define PCMD 57369
#define PIPEFD 57370
#define YYEOFCODE 1
#define YYERRCODE 2
short yyexca[] =
{-1, 0,
1, 1,
-2, 18,
-1, 1,
1, -1,
-2, 0,
};
#define YYNPROD 70
#define YYPRIVATE 57344
#define YYLAST 371
short yyact[] =
{
64, 3, 39, 31, 32, 3, 63, 33, 62, 38,
5, 68, 12, 58, 59, 60, 61, 40, 36, 21,
89, 35, 17, 56, 28, 94, 90, 29, 30, 44,
44, 44, 75, 76, 77, 67, 74, 73, 39, 44,
19, 20, 44, 44, 44, 88, 81, 85, 33, 36,
31, 32, 100, 37, 33, 42, 55, 57, 78, 85,
44, 98, 41, 84, 99, 69, 86, 83, 70, 71,
72, 2, 91, 87, 29, 30, 34, 106, 66, 4,
96, 97, 44, 4, 101, 110, 82, 44, 44, 31,
32, 80, 79, 33, 44, 102, 1, 43, 18, 10,
13, 65, 0, 104, 0, 44, 44, 109, 105, 0,
0, 111, 0, 92, 93, 0, 0, 0, 0, 0,
0, 0, 0, 0, 44, 44, 0, 48, 47, 45,
53, 103, 49, 0, 0, 51, 52, 0, 0, 22,
24, 23, 0, 46, 50, 54, 25, 19, 20, 0,
0, 0, 0, 0, 0, 0, 6, 8, 7, 9,
0, 27, 0, 26, 14, 15, 0, 0, 22, 24,
23, 0, 0, 11, 16, 25, 19, 20, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 17, 0,
27, 0, 26, 48, 47, 45, 53, 108, 49, 0,
0, 51, 52, 0, 0, 22, 24, 23, 0, 46,
50, 54, 25, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 27, 0, 26,
48, 47, 45, 53, 107, 49, 0, 0, 51, 52,
0, 0, 22, 24, 23, 0, 46, 50, 54, 25,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 27, 0, 26, 48, 47, 45,
53, 95, 49, 0, 0, 51, 52, 0, 0, 22,
24, 23, 0, 46, 50, 54, 25, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 48, 47, 45,
53, 27, 49, 26, 0, 51, 52, 0, 0, 22,
24, 23, 0, 46, 50, 54, 25, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 17,
0, 27, 0, 26, 48, 47, 45, 53, 0, 49,
0, 0, 51, 52, 0, 0, 22, 24, 23, 0,
46, 50, 54, 25, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 27, 0,
26
};
short yypact[] =
{
152,-1000, -9, 40, 152, 16, 0, -21, -36, 330,
123, 330, 152, 152, 152, 152,-1000, 152, -4, 330,
-1000,-1000, 330, 330, 330,-1000, -14,-1000,-1000,-1000,
-1000, 152, 152, 152,-1000,-1000, 16,-1000,-1000, 152,
330,-1000, 32,-1000,-1000,-1000,-1000,-1000,-1000,-1000,
-1000,-1000,-1000,-1000,-1000, 32,-1000, 32, 34, 34,
34, 34, 293, -17, -7, 152,-1000, 330, 330, 32,
6,-1000,-1000,-1000, 263, 34, 34,-1000,-1000, 152,
152, 53, 44, 152, -14, 330, 330,-1000, 32,-1000,
-1000,-1000, 32,-1000,-1000,-1000, 79, 79,-1000,-1000,
-1000, 79,-1000,-1000, 226, 189, 152,-1000,-1000, 79,
152, 79
};
short yypgo[] =
{
0, 71, 53, 10, 6, 78, 101, 100, 21, 12,
0, 99, 98, 45, 19, 97, 8, 96, 92, 91,
85, 77, 67, 63
};
short yyr1[] =
{
0, 17, 17, 1, 1, 4, 4, 5, 5, 6,
6, 3, 2, 7, 8, 8, 9, 9, 10, 10,
18, 10, 19, 10, 20, 10, 21, 10, 22, 10,
23, 10, 10, 10, 10, 10, 10, 10, 10, 10,
10, 10, 10, 11, 11, 11, 12, 12, 13, 13,
13, 14, 14, 14, 14, 14, 14, 14, 15, 15,
15, 15, 15, 15, 15, 15, 15, 15, 16, 16
};
short yyr2[] =
{
0, 0, 2, 1, 2, 1, 2, 2, 2, 1,
2, 3, 3, 3, 0, 2, 2, 1, 0, 2,
0, 4, 0, 4, 0, 8, 0, 6, 0, 4,
0, 4, 1, 3, 3, 3, 3, 2, 2, 2,
2, 3, 2, 1, 2, 2, 1, 3, 1, 1,
3, 2, 5, 2, 2, 1, 2, 3, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 0, 2
};
short yychk[] =
{
-1000, -17, -1, -10, -5, -3, 4, 6, 5, 7,
-11, 21, -9, -7, 12, 13, 22, 36, -12, 24,
25, -14, 16, 18, 17, 23, 40, 38, 33, 34,
35, 10, 11, 14, -1, -8, -9, -2, 9, 38,
38, -2, -13, -15, -14, 6, 20, 5, 4, 9,
21, 12, 13, 7, 22, -13, -9, -13, -10, -10,
-10, -10, -16, -4, -10, -6, -5, 39, 15, -13,
-13, -13, -13, -3, -16, -10, -10, -10, -8, -18,
-19, -4, -13, -22, -23, 15, -16, -3, -13, 37,
33, -4, -13, -13, 19, 8, -10, -10, 8, 20,
8, -10, -3, -13, -16, -16, -21, 8, 8, -10,
-20, -10
};
short yydef[] =
{
-2, -2, 0, 3, 18, 14, 0, 0, 0, 0,
32, 0, 18, 18, 18, 18, 68, 18, 43, 0,
17, 46, 0, 0, 0, 55, 0, 68, 2, 7,
8, 18, 18, 18, 4, 19, 14, 20, 22, 18,
0, 28, 30, 48, 49, 58, 59, 60, 61, 62,
63, 64, 65, 66, 67, 44, 45, 68, 37, 38,
39, 40, 42, 0, 5, 18, 9, 0, 0, 16,
51, 53, 54, 56, 0, 34, 35, 36, 15, 18,
18, 0, 0, 18, 0, 0, 33, 41, 69, 11,
10, 6, 13, 47, 68, 57, 21, 23, 12, 68,
26, 29, 31, 50, 0, 0, 18, 52, 24, 27,
18, 25
};
short yytok1[] =
{
1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
33, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 18, 0, 16, 0, 35, 0,
38, 8, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 34,
0, 39, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 15, 0, 40, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 36, 0, 37
};
short yytok2[] =
{
2, 3, 4, 5, 6, 7, 9, 10, 11, 12,
13, 14, 17, 19, 20, 21, 22, 23, 24, 25,
26, 27, 28, 29, 30, 31, 32
};
long yytok3[] =
{
0
};
#define YYFLAG -1000
#define yyclearin yychar = -1
#define yyerrok yyerrflag = 0
#ifdef yydebug
#include "y.debug"
#else
#define yydebug 0
char* yytoknames[1]; /* for debugging */
char* yystates[1]; /* for debugging */
#endif
/* parser for yacc output */
int yynerrs = 0; /* number of errors */
int yyerrflag = 0; /* error recovery flag */
extern int fprint(int, char*, ...);
extern int sprint(char*, char*, ...);
char*
yytokname(int yyc)
{
static char x[16];
if(yyc > 0 && yyc <= sizeof(yytoknames)/sizeof(yytoknames[0]))
if(yytoknames[yyc-1])
return yytoknames[yyc-1];
sprint(x, "<%d>", yyc);
return x;
}
char*
yystatname(int yys)
{
static char x[16];
if(yys >= 0 && yys < sizeof(yystates)/sizeof(yystates[0]))
if(yystates[yys])
return yystates[yys];
sprint(x, "<%d>\n", yys);
return x;
}
long
yylex1(void)
{
long yychar;
long *t3p;
int c;
yychar = yylex();
if(yychar <= 0) {
c = yytok1[0];
goto out;
}
if(yychar < sizeof(yytok1)/sizeof(yytok1[0])) {
c = yytok1[yychar];
goto out;
}
if(yychar >= YYPRIVATE)
if(yychar < YYPRIVATE+sizeof(yytok2)/sizeof(yytok2[0])) {
c = yytok2[yychar-YYPRIVATE];
goto out;
}
for(t3p=yytok3;; t3p+=2) {
c = t3p[0];
if(c == yychar) {
c = t3p[1];
goto out;
}
if(c == 0)
break;
}
c = 0;
out:
if(c == 0)
c = yytok2[1]; /* unknown char */
if(yydebug >= 3)
fprint(2, "lex %.4lux %s\n", yychar, yytokname(c));
return c;
}
int
yyparse(void)
{
struct
{
YYSTYPE yyv;
int yys;
} yys[YYMAXDEPTH], *yyp, *yypt;
short *yyxi;
int yyj, yym, yystate, yyn, yyg;
long yychar;
YYSTYPE save1, save2;
int save3, save4;
save1 = yylval;
save2 = yyval;
save3 = yynerrs;
save4 = yyerrflag;
yystate = 0;
yychar = -1;
yynerrs = 0;
yyerrflag = 0;
yyp = &yys[-1];
goto yystack;
ret0:
yyn = 0;
goto ret;
ret1:
yyn = 1;
goto ret;
ret:
yylval = save1;
yyval = save2;
yynerrs = save3;
yyerrflag = save4;
return yyn;
yystack:
/* put a state and value onto the stack */
if(yydebug >= 4)
fprint(2, "char %s in %s", yytokname(yychar), yystatname(yystate));
yyp++;
if(yyp >= &yys[YYMAXDEPTH]) {
yyerror("yacc stack overflow");
goto ret1;
}
yyp->yys = yystate;
yyp->yyv = yyval;
yynewstate:
yyn = yypact[yystate];
if(yyn <= YYFLAG)
goto yydefault; /* simple state */
if(yychar < 0)
yychar = yylex1();
yyn += yychar;
if(yyn < 0 || yyn >= YYLAST)
goto yydefault;
yyn = yyact[yyn];
if(yychk[yyn] == yychar) { /* valid shift */
yychar = -1;
yyval = yylval;
yystate = yyn;
if(yyerrflag > 0)
yyerrflag--;
goto yystack;
}
yydefault:
/* default state action */
yyn = yydef[yystate];
if(yyn == -2) {
if(yychar < 0)
yychar = yylex1();
/* look through exception table */
for(yyxi=yyexca;; yyxi+=2)
if(yyxi[0] == -1 && yyxi[1] == yystate)
break;
for(yyxi += 2;; yyxi += 2) {
yyn = yyxi[0];
if(yyn < 0 || yyn == yychar)
break;
}
yyn = yyxi[1];
if(yyn < 0)
goto ret0;
}
if(yyn == 0) {
/* error ... attempt to resume parsing */
switch(yyerrflag) {
case 0: /* brand new error */
yyerror("syntax error");
yynerrs++;
if(yydebug >= 1) {
fprint(2, "%s", yystatname(yystate));
fprint(2, "saw %s\n", yytokname(yychar));
}
case 1:
case 2: /* incompletely recovered error ... try again */
yyerrflag = 3;
/* find a state where "error" is a legal shift action */
while(yyp >= yys) {
yyn = yypact[yyp->yys] + YYERRCODE;
if(yyn >= 0 && yyn < YYLAST) {
yystate = yyact[yyn]; /* simulate a shift of "error" */
if(yychk[yystate] == YYERRCODE)
goto yystack;
}
/* the current yyp has no shift onn "error", pop stack */
if(yydebug >= 2)
fprint(2, "error recovery pops state %d, uncovers %d\n",
yyp->yys, (yyp-1)->yys );
yyp--;
}
/* there is no state on the stack with an error shift ... abort */
goto ret1;
case 3: /* no shift yet; clobber input char */
if(yydebug >= 2)
fprint(2, "error recovery discards %s\n", yytokname(yychar));
if(yychar == YYEOFCODE)
goto ret1;
yychar = -1;
goto yynewstate; /* try again in the same state */
}
}
/* reduction by production yyn */
if(yydebug >= 2)
fprint(2, "reduce %d in:\n\t%s", yyn, yystatname(yystate));
yypt = yyp;
yyp -= yyr2[yyn];
yyval = (yyp+1)->yyv;
yym = yyn;
/* consult goto table to find next state */
yyn = yyr1[yyn];
yyg = yypgo[yyn];
yyj = yyg + yyp->yys + 1;
if(yyj >= YYLAST || yychk[yystate=yyact[yyj]] != -yyn)
yystate = yyact[yyg];
switch(yym) {
case 1:
#line 30 "syn.y"
{ return 1;} break;
case 2:
#line 31 "syn.y"
{return !compile(yypt[-1].yyv.tree);} break;
case 4:
#line 33 "syn.y"
{yyval.tree=tree2(';', yypt[-1].yyv.tree, yypt[-0].yyv.tree);} break;
case 6:
#line 35 "syn.y"
{yyval.tree=tree2(';', yypt[-1].yyv.tree, yypt[-0].yyv.tree);} break;
case 8:
#line 37 "syn.y"
{yyval.tree=tree1('&', yypt[-1].yyv.tree);} break;
case 11:
#line 40 "syn.y"
{yyval.tree=tree1(BRACE, yypt[-1].yyv.tree);} break;
case 12:
#line 41 "syn.y"
{yyval.tree=tree1(PCMD, yypt[-1].yyv.tree);} break;
case 13:
#line 42 "syn.y"
{yyval.tree=tree2('=', yypt[-2].yyv.tree, yypt[-0].yyv.tree);} break;
case 14:
#line 43 "syn.y"
{yyval.tree=0;} break;
case 15:
#line 44 "syn.y"
{yyval.tree=mung2(yypt[-1].yyv.tree, yypt[-1].yyv.tree->child[0], yypt[-0].yyv.tree);} break;
case 16:
#line 45 "syn.y"
{yyval.tree=mung1(yypt[-1].yyv.tree, yypt[-1].yyv.tree->rtype==HERE?heredoc(yypt[-0].yyv.tree):yypt[-0].yyv.tree);} break;
case 18:
#line 47 "syn.y"
{yyval.tree=0;} break;
case 19:
#line 48 "syn.y"
{yyval.tree=epimung(yypt[-1].yyv.tree, yypt[-0].yyv.tree);} break;
case 20:
#line 49 "syn.y"
{skipnl();} break;
case 21:
#line 50 "syn.y"
{yyval.tree=mung2(yypt[-3].yyv.tree, yypt[-2].yyv.tree, yypt[-0].yyv.tree);} break;
case 22:
#line 51 "syn.y"
{skipnl();} break;
case 23:
#line 51 "syn.y"
{yyval.tree=mung1(yypt[-2].yyv.tree, yypt[-0].yyv.tree);} break;
case 24:
#line 52 "syn.y"
{skipnl();} break;
case 25:
#line 53 "syn.y"
{yyval.tree=mung3(yypt[-7].yyv.tree, yypt[-5].yyv.tree, tree1(PAREN, yypt[-3].yyv.tree), yypt[-0].yyv.tree);} break;
case 26:
#line 54 "syn.y"
{skipnl();} break;
case 27:
#line 55 "syn.y"
{yyval.tree=mung3(yypt[-5].yyv.tree, yypt[-3].yyv.tree, 0, yypt[-0].yyv.tree);} break;
case 28:
#line 56 "syn.y"
{skipnl();} break;
case 29:
#line 57 "syn.y"
{yyval.tree=mung2(yypt[-3].yyv.tree, yypt[-2].yyv.tree, yypt[-0].yyv.tree);} break;
case 30:
#line 58 "syn.y"
{skipnl();} break;
case 31:
#line 59 "syn.y"
{yyval.tree=tree2(SWITCH, yypt[-2].yyv.tree, yypt[-0].yyv.tree);} break;
case 32:
#line 60 "syn.y"
{yyval.tree=simplemung(yypt[-0].yyv.tree);} break;
case 33:
#line 61 "syn.y"
{yyval.tree=mung2(yypt[-2].yyv.tree, yypt[-1].yyv.tree, yypt[-0].yyv.tree);} break;
case 34:
#line 62 "syn.y"
{yyval.tree=tree2(ANDAND, yypt[-2].yyv.tree, yypt[-0].yyv.tree);} break;
case 35:
#line 63 "syn.y"
{yyval.tree=tree2(OROR, yypt[-2].yyv.tree, yypt[-0].yyv.tree);} break;
case 36:
#line 64 "syn.y"
{yyval.tree=mung2(yypt[-1].yyv.tree, yypt[-2].yyv.tree, yypt[-0].yyv.tree);} break;
case 37:
#line 65 "syn.y"
{yyval.tree=mung2(yypt[-1].yyv.tree, yypt[-1].yyv.tree->child[0], yypt[-0].yyv.tree);} break;
case 38:
#line 66 "syn.y"
{yyval.tree=mung3(yypt[-1].yyv.tree, yypt[-1].yyv.tree->child[0], yypt[-1].yyv.tree->child[1], yypt[-0].yyv.tree);} break;
case 39:
#line 67 "syn.y"
{yyval.tree=mung1(yypt[-1].yyv.tree, yypt[-0].yyv.tree);} break;
case 40:
#line 68 "syn.y"
{yyval.tree=mung1(yypt[-1].yyv.tree, yypt[-0].yyv.tree);} break;
case 41:
#line 69 "syn.y"
{yyval.tree=tree2(FN, yypt[-1].yyv.tree, yypt[-0].yyv.tree);} break;
case 42:
#line 70 "syn.y"
{yyval.tree=tree1(FN, yypt[-0].yyv.tree);} break;
case 44:
#line 72 "syn.y"
{yyval.tree=tree2(ARGLIST, yypt[-1].yyv.tree, yypt[-0].yyv.tree);} break;
case 45:
#line 73 "syn.y"
{yyval.tree=tree2(ARGLIST, yypt[-1].yyv.tree, yypt[-0].yyv.tree);} break;
case 47:
#line 75 "syn.y"
{yyval.tree=tree2('^', yypt[-2].yyv.tree, yypt[-0].yyv.tree);} break;
case 48:
#line 76 "syn.y"
{yypt[-0].yyv.tree->type=WORD;} break;
case 50:
#line 78 "syn.y"
{yyval.tree=tree2('^', yypt[-2].yyv.tree, yypt[-0].yyv.tree);} break;
case 51:
#line 79 "syn.y"
{yyval.tree=tree1('$', yypt[-0].yyv.tree);} break;
case 52:
#line 80 "syn.y"
{yyval.tree=tree2(SUB, yypt[-3].yyv.tree, yypt[-1].yyv.tree);} break;
case 53:
#line 81 "syn.y"
{yyval.tree=tree1('"', yypt[-0].yyv.tree);} break;
case 54:
#line 82 "syn.y"
{yyval.tree=tree1(COUNT, yypt[-0].yyv.tree);} break;
case 56:
#line 84 "syn.y"
{yyval.tree=tree1('`', yypt[-0].yyv.tree);} break;
case 57:
#line 85 "syn.y"
{yyval.tree=tree1(PAREN, yypt[-1].yyv.tree);} break;
case 68:
#line 89 "syn.y"
{yyval.tree=0;} break;
case 69:
#line 90 "syn.y"
{yyval.tree=tree2(WORDS, yypt[-1].yyv.tree, yypt[-0].yyv.tree);} break;
}
goto yystack; /* stack new state and value */
}
|
