-
Notifications
You must be signed in to change notification settings - Fork 0
/
pgrammar.y
544 lines (459 loc) · 30.9 KB
/
pgrammar.y
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
%{
// Parser file to convert Penn Treebank into lambek calculus
/*
MIT License
Copyright (c) 2016 Joseph Lee Nunn III and Sean Fulop
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
#include <iostream> //Must include for building on OSX
#include <cstdio>
#include <cstdarg>
#include <cstring>
#include <stdlib.h>
#include <stack>
#include <map>
#include <list>
using namespace std;
extern "C" int yylex() ;
extern "C" int yyparse() ;
extern "C" FILE *yyin ;
#define SIZEOF_ARRAY( a ) ( sizeof( a ) / sizeof( a[ 0 ] ) )
void yyerror( const char *msg ) {
fprintf(stderr, "%s\n", msg) ;
}
// Outputs desired format string with args subbed in, please explicitly terminate string with null character '\0'
inline char* output( const char* format, int numArgs, ... ) {
int argLengths, index ;
va_list args, argCopy ;
argLengths = 0 ;
va_start( args, numArgs ) ;
// Compute number and total length of all arg strings
va_copy( argCopy, args ) ;
for ( index = 0 ; index < numArgs ; index++ ) {
argLengths += strlen( va_arg( argCopy, char* ) ) ;
}
va_end( argCopy ) ;
// Subtact the number of args to print * 2, the characters replaced in the format string
char* temp = (char*)malloc( strlen( format ) + argLengths - ( numArgs * 2 ) + 1 ) ;
vsprintf( temp, format, args ) ;
va_end( args ) ;
return temp ;
}
// Holds pointer to type information as parse happens like the $$ variable
char* typeInfo ;
// Holds the built string for pushing on a rulestack before popping
char* result ;
// List of lefthand side rule names, if you add a new rule add the name to the list here to be able to use it in the grammar for generating type info!
char const *ruleNames[] = { "start"
, "eolf"
, "headclause"
, "clause"
, "phrase"
, "word"
, "subword"
, "s"
, "pause"
, "terminal"
, "nonterminal" } ;
list <string> rules( ruleNames, ruleNames + SIZEOF_ARRAY( ruleNames ) ) ;
// Need a stack for each lefthand side name
map < const string, stack <string> > rulestacks ;
// Populate rulename to stack mapping
void makeRuleStacks( list <string> ruleList ) {
for ( list<string>::iterator name = ruleList.begin() ; name != ruleList.end() ; ++name ) {
rulestacks.insert( pair< const string, stack <string> >( *name, stack <string>() ) ) ;
}
}
%}
%union {
char *str ;
}
%token <str> POS_TOKEN ;
%token <str> TERMINAL_TOKEN ;
%token <str> NON_TERMINAL_TOKEN ;
%token <str> S_TOKEN ;
%token <str> EOF_TOKEN 0 "End of File" ;
%type <str> s pos terminal nonterminal subword word phrase clause headphrase headclause start eolf
%start start ;
/* Needed to build, even when not building debug version */
%debug
%%
/* Important not to check for start eolf, as $accept : start eof is the top level invisible rule!, see top of bison generated .output file */
start : clause eolf { printf( "%s:%s\n", $1, rulestacks[ "clause" ].top().c_str() ) ;
rulestacks[ "clause" ].pop() ; } ;
| start clause eolf { printf("%s:%s\n", $2, rulestacks[ "clause" ].top().c_str() ) ;
rulestacks[ "clause" ].pop() ; } ;
| eolf
| start '\n' ;
eolf : '\n' { $$ = (char*)"\n" ; }
| "End of File" ;
headphrase : '@' phrase { $$ = $2 ;
rulestacks[ "headphrase" ].push( rulestacks[ "phrase" ].top().c_str() ) ;
rulestacks[ "phrase" ].pop() ;
#ifdef TDEBUG
printf( "in headphrase rule: top of stack is %s\n", rulestacks[ "headphrase" ].top().c_str() ) ;
#endif
} ;
headclause : '@' clause { $$ = $2 ;
rulestacks[ "headclause" ].push( rulestacks[ "clause" ].top().c_str() ) ;
rulestacks[ "clause" ].pop() ;
#ifdef TDEBUG
printf( "in headclause rule: top of stack is %s\n", rulestacks[ "headclause" ].top().c_str() ) ;
#endif
} ;
clause : '(' s phrase headphrase ')' { $$ = output( "[%s, %s]", 2, $3, $4 ) ;
result = output( "type(%s@%s, s)", 2, rulestacks[ "headphrase" ].top().c_str(), rulestacks[ "phrase" ].top().c_str() ) ;
rulestacks[ "headphrase" ].pop() ;
rulestacks[ "phrase" ].pop() ;
rulestacks[ "clause" ].push( result ) ;
#ifdef TDEBUG
printf( "in clause rule 1: top of stack is %s\n", rulestacks[ "clause" ].top().c_str() ) ;
#endif
} ;
| '(' s phrase clause ')' { $$ = output( "[%s, %s]", 2, $3, $4 ) ;
result = output( "type(%s@%s, s)", 2, rulestacks[ "clause" ].top().c_str(), rulestacks[ "phrase" ].top().c_str() ) ;
rulestacks[ "clause" ].pop() ;
rulestacks[ "phrase" ].pop() ;
rulestacks[ "clause" ].push( result ) ;
#ifdef TDEBUG
printf( "in clause rule 2: top of stack is %s\n", rulestacks[ "clause" ].top().c_str() ) ;
#endif
} ;
| '(' s phrase headclause ')' { $$ = output( "[%s, %s]", 2, $3, $4 ) ;
result = output( "type(%s@%s, s)", 2, rulestacks[ "headclause" ].top().c_str(), rulestacks[ "phrase" ].top().c_str() ) ;
rulestacks[ "headclause" ].pop() ;
rulestacks[ "phrase" ].pop() ;
rulestacks[ "clause" ].push( result ) ;
#ifdef TDEBUG
printf( "in clause rule 3: top of stack is %s\n", rulestacks[ "clause" ].top().c_str() ) ;
#endif
} ;
| '(' s headphrase ')' { $$ = $3 ;
rulestacks[ "clause" ].push( output( "type(%s, s)", 1, rulestacks[ "headphrase" ].top().c_str() ) ) ;
rulestacks[ "headphrase" ].pop() ;
#ifdef TDEBUG
printf( "in clause rule 4: top of stack is %s\n", rulestacks[ "clause" ].top().c_str() ) ;
#endif
} ;
| '(' s headphrase phrase ')' { $$ = output( "[%s, %s]", 2, $3, $4 ) ;
result = output( "type(%s@%s, s)", 2, rulestacks[ "headphrase" ].top().c_str(), rulestacks[ "phrase" ].top().c_str() ) ;
rulestacks[ "headphrase" ].pop() ;
rulestacks[ "phrase" ].pop() ;
rulestacks[ "clause" ].push( result ) ;
#ifdef TDEBUG
printf( "in clause rule 5: top of stack is %s\n", rulestacks[ "clause" ].top().c_str() ) ;
#endif
} ;
| '(' s headphrase clause ')' { $$ = output( "[%s, %s]", 2, $3, $4 ) ;
result = output( "type(%s@%s, s)", 2, rulestacks[ "headphrase" ].top().c_str(), rulestacks[ "clause" ].top().c_str() ) ;
rulestacks[ "headphrase" ].pop() ;
rulestacks[ "clause" ].pop() ;
rulestacks[ "clause" ].push( result ) ;
#ifdef TDEBUG
printf( "in clause rule 6: top of stack is %s\n", rulestacks[ "clause" ].top().c_str() ) ;
#endif
} ;
| '(' s phrase ')' { $$ = $3 ;
rulestacks[ "clause" ].push( output( "type(%s, s)", 1, rulestacks[ "phrase" ].top().c_str() ) ) ;
rulestacks[ "phrase" ].pop() ;
#ifdef TDEBUG
printf( "in clause rule 7: top of stack is %s\n", rulestacks[ "clause" ].top().c_str() ) ;
#endif
} ;
| '(' s clause ')' { $$ = $3 ;
string tword = rulestacks[ "clause" ].top().c_str() ;
rulestacks[ "clause" ].pop() ;
rulestacks[ "clause" ].push( output( "type(%s, s)", 1, tword.c_str() ) ) ;
#ifdef TDEBUG
printf( "in clause rule 8: top of stack is %s\n", rulestacks[ "clause" ].top().c_str() ) ;
#endif
} ;
| '(' s headclause ')' { $$ = $3 ;
rulestacks[ "clause" ].push( output( "type(%s, s)", 1, rulestacks[ "headclause" ].top().c_str() ) ) ;
rulestacks[ "headclause" ].pop() ;
#ifdef TDEBUG
printf( "in clause rule 9: top of stack is %s\n", rulestacks[ "clause" ].top().c_str() ) ;
#endif
} ;
| '(' s word ')' { $$ = output( "[%s]", 1, $3 ) ;
rulestacks[ "clause" ].push( output( "type(%s, s)", 1, rulestacks[ "word" ].top().c_str() ) ) ;
rulestacks[ "word" ].pop() ;
#ifdef TDEBUG
printf( "in clause rule 10: top of stack is %s\n", rulestacks[ "clause" ].top().c_str() ) ;
#endif
} ;
| '(' s word clause ')' { $$ = output( "[%s, %s]", 2, $3, $4 ) ;
result = output( "type(%s@%s, s)", 2, rulestacks[ "word" ].top().c_str(), rulestacks[ "clause" ].top().c_str() ) ;
rulestacks[ "clause" ].pop() ;
rulestacks[ "word" ].pop() ;
rulestacks[ "clause" ].push( result ) ;
#ifdef TDEBUG
printf( "in clause rule 11: top of stack is %s\n", rulestacks[ "clause" ].top().c_str() ) ;
#endif
} ;
| '(' s word headclause ')' { $$ = output( "[%s, %s]", 2, $3, $4 ) ;
result = output( "type(%s@%s, s)", 2, rulestacks[ "headclause" ].top().c_str(), rulestacks[ "word" ].top().c_str() ) ;
rulestacks[ "word" ].pop() ;
rulestacks[ "headclause" ].pop() ;
rulestacks[ "clause" ].push( result ) ;
#ifdef TDEBUG
printf( "in clause rule 12: top of stack is %s\n", rulestacks[ "clause" ].top().c_str() ) ;
#endif
} ;
| '(' s word phrase ')' { $$ = output( "[%s, %s]", 2, $3, $4 ) ;
result = output( "type(%s@%s, s)", 2, rulestacks[ "word" ].top().c_str(), rulestacks[ "phrase" ].top().c_str() ) ;
rulestacks[ "phrase" ].pop() ;
rulestacks[ "word" ].pop() ;
rulestacks[ "clause" ].push( result ) ;
#ifdef TDEBUG
printf( "in clause rule 13: top of stack is %s\n", rulestacks[ "clause" ].top().c_str() ) ;
#endif
} ;
| '(' s word headphrase ')' { $$ = output( "[%s, %s]", 2, $3, $4 ) ;
result = output( "type(%s@%s, s)", 2, rulestacks[ "headphrase" ].top().c_str(), rulestacks[ "word" ].top().c_str() ) ;
rulestacks[ "word" ].pop() ;
rulestacks[ "headphrase" ].pop() ;
rulestacks[ "clause" ].push( result ) ;
#ifdef TDEBUG
printf( "in clause rule 14: top of stack is %s\n", rulestacks[ "clause" ].top().c_str() ) ;
#endif
} ;
/*clstart : '(' s ; */
phrase : '(' nonterminal word phrase ')' { $$ = output( "[%s, %s]", 2, $3, $4 ) ;
result = output( "type(%s@%s, _)", 2, rulestacks[ "word" ].top().c_str(), rulestacks[ "phrase" ].top().c_str() ) ;
rulestacks[ "word" ].pop() ;
rulestacks[ "phrase" ].pop() ;
rulestacks[ "phrase" ].push( result ) ;
#ifdef TDEBUG
printf( "in phrase rule 1: top of stack is %s\n", rulestacks[ "phrase" ].top().c_str() ) ;
#endif
} ;
| '(' nonterminal word headphrase ')' { $$ = output( "[%s, %s]", 2, $3, $4 ) ;
result = output( "type(%s@%s, _)", 2, rulestacks[ "word" ].top().c_str(), rulestacks[ "headphrase" ].top().c_str() ) ;
rulestacks[ "word" ].pop() ;
rulestacks[ "headphrase" ].pop() ;
rulestacks[ "phrase" ].push( result ) ;
#ifdef TDEBUG
printf( "in phrase rule 2: top of stack is %s\n", rulestacks[ "phrase" ].top().c_str() ) ;
#endif
} ;
| '(' nonterminal word clause ')' { $$ = output( "[%s, %s]", 2, $3, $4 ) ;
result = output( "type(%s@%s, _)", 2, rulestacks[ "word" ].top().c_str(), rulestacks[ "clause" ].top().c_str() ) ;
rulestacks[ "word" ].pop() ;
rulestacks[ "clause" ].pop() ;
rulestacks[ "phrase" ].push( result ) ;
#ifdef TDEBUG
printf( "in phrase rule 3: top of stack is %s\n", rulestacks[ "phrase" ].top().c_str() ) ;
#endif
} ;
| '(' nonterminal phrase word ')' { $$ = output( "[%s, %s]", 2, $3, $4 ) ;
result = output( "type(%s@%s, _)", 2, rulestacks[ "word" ].top().c_str(), rulestacks[ "phrase" ].top().c_str() ) ;
rulestacks[ "word" ].pop() ;
rulestacks[ "phrase" ].pop() ;
rulestacks[ "phrase" ].push( result ) ;
#ifdef TDEBUG
printf( "in phrase rule 4: top of stack is %s\n", rulestacks[ "phrase" ].top().c_str() ) ;
#endif
} ;
| '(' nonterminal headphrase word ')' { $$ = output( "[%s, %s]", 2, $3, $4 ) ;
result = output( "type(%s@%s, _)", 2, rulestacks[ "headphrase" ].top().c_str(), rulestacks[ "word" ].top().c_str() ) ;
rulestacks[ "headphrase" ].pop() ;
rulestacks[ "word" ].pop() ;
rulestacks[ "phrase" ].push( result ) ;
#ifdef TDEBUG
printf( "in phrase rule 5: top of stack is %s\n", rulestacks[ "phrase" ].top().c_str() ) ;
#endif
} ;
| '(' nonterminal clause word ')' { $$ = output( "[%s, %s]", 2, $3, $4 ) ;
result = output( "type(%s@%s, _)", 2, rulestacks[ "word" ].top().c_str(), rulestacks[ "clause" ].top().c_str() ) ;
rulestacks[ "word" ].pop() ;
rulestacks[ "clause" ].pop() ;
rulestacks[ "phrase" ].push( result ) ;
#ifdef TDEBUG
printf( "in phrase rule 6: top of stack is %s\n", rulestacks[ "phrase" ].top().c_str() ) ;
#endif
} ;
| '(' nonterminal phrase clause ')' { $$ = output( "[%s, %s]", 2, $3, $4 ) ;
result = output( "type(%s@%s, _)", 2, rulestacks[ "phrase" ].top().c_str(), rulestacks[ "clause" ].top().c_str() ) ;
rulestacks[ "phrase" ].pop() ;
rulestacks[ "clause" ].pop() ;
rulestacks[ "phrase" ].push( result ) ;
#ifdef TDEBUG
printf( "in phrase rule 7: top of stack is %s\n", rulestacks[ "phrase" ].top().c_str() ) ;
#endif
} ;
| '(' nonterminal phrase headclause ')' { $$ = output( "[%s, %s]", 2, $3, $4 ) ;
result = output( "type(%s@%s, _)", 2, rulestacks[ "headclause" ].top().c_str(), rulestacks[ "phrase" ].top().c_str() ) ;
rulestacks[ "headclause" ].pop() ;
rulestacks[ "phrase" ].pop() ;
rulestacks[ "phrase" ].push( result ) ;
#ifdef TDEBUG
printf( "in phrase rule 8: top of stack is %s\n", rulestacks[ "phrase" ].top().c_str() ) ;
#endif
} ;
| '(' nonterminal headphrase clause ')' { $$ = output( "[%s, %s]", 2, $3, $4 ) ;
result = output( "type(%s@%s, _)", 2, rulestacks[ "headphrase" ].top().c_str(), rulestacks[ "clause" ].top().c_str() ) ;
rulestacks[ "headphrase" ].pop() ;
rulestacks[ "clause" ].pop() ;
rulestacks[ "phrase" ].push( result ) ;
#ifdef TDEBUG
printf( "in phrase rule 9: top of stack is %s\n", rulestacks[ "phrase" ].top().c_str() ) ;
#endif
} ;
| '(' nonterminal clause headphrase ')' { $$ = output( "[%s, %s]", 2, $3, $4 ) ;
result = output( "type(%s@%s, _)", 2, rulestacks[ "headphrase" ].top().c_str(), rulestacks[ "clause" ].top().c_str() ) ;
rulestacks[ "headphrase" ].pop() ;
rulestacks[ "clause" ].pop() ;
rulestacks[ "phrase" ].push( result ) ;
#ifdef TDEBUG
printf( "in phrase rule 10: top of stack is %s\n", rulestacks[ "phrase" ].top().c_str() ) ;
#endif
} ;
| '(' nonterminal clause phrase ')' { $$ = output( "[%s, %s]", 2, $3, $4 ) ;
result = output( "type(%s@%s, _)", 2, rulestacks[ "phrase" ].top().c_str(), rulestacks[ "clause" ].top().c_str() ) ;
rulestacks[ "phrase" ].pop() ;
rulestacks[ "clause" ].pop() ;
rulestacks[ "phrase" ].push( result ) ;
#ifdef TDEBUG
printf( "in phrase rule 11: top of stack is %s\n", rulestacks[ "phrase" ].top().c_str() ) ;
#endif
} ;
| '(' nonterminal headclause phrase ')' { $$ = output( "[%s, %s]", 2, $3, $4 ) ;
result = output( "type(%s@%s, _)", 2, rulestacks[ "headclause" ].top().c_str(), rulestacks[ "phrase" ].top().c_str() ) ;
rulestacks[ "headclause" ].pop() ;
rulestacks[ "phrase" ].pop() ;
rulestacks[ "phrase" ].push( result ) ;
#ifdef TDEBUG
printf( "in phrase rule 12: top of stack is %s\n", rulestacks[ "phrase" ].top().c_str() ) ;
#endif
} ;
| '(' nonterminal word ')' { $$ = $3 ;
rulestacks[ "phrase" ].push( output( "%s", 1, rulestacks[ "word" ].top().c_str() ) ) ;
rulestacks[ "word" ].pop() ;
#ifdef TDEBUG
printf( "in phrase rule 13: top of stack is %s\n", rulestacks[ "phrase" ].top().c_str() ) ;
#endif
} ;
| '(' nonterminal word word ')' { $$ = output( "[%s, %s]", 2, $3, $4 ) ;
string tword = rulestacks[ "word" ].top() ;
rulestacks[ "word" ].pop() ;
string bword = rulestacks[ "word" ].top() ;
rulestacks[ "word" ].pop() ;
result = output( "type(%s@%s, _)", 2, tword.c_str(), bword.c_str() ) ;
rulestacks[ "phrase" ].push( result ) ;
#ifdef TDEBUG
printf( "in phrase rule 14: top of stack is %s\n", rulestacks[ "phrase" ].top().c_str() ) ;
#endif
} ;
| '(' nonterminal headphrase ')' { $$ = $3 ;
rulestacks[ "phrase" ].push( output( "%s", 1, rulestacks[ "headphrase" ].top().c_str() ) ) ;
rulestacks[ "headphrase" ].pop() ;
#ifdef TDEBUG
printf( "in phrase rule 15: top of stack is %s\n", rulestacks[ "phrase" ].top().c_str() ) ;
#endif
} ;
| '(' nonterminal phrase ')' { $$ = $3 ;
rulestacks[ "phrase" ].push( output( "%s", 1, rulestacks[ "phrase" ].top().c_str() ) ) ;
rulestacks[ "phrase" ].pop() ;
#ifdef TDEBUG
printf( "in phrase rule 16: top of stack is %s\n", rulestacks[ "phrase" ].top().c_str() ) ;
#endif
} ;
| '(' nonterminal clause ')' { $$ = $3 ;
rulestacks[ "phrase" ].push( output( "%s", 1, rulestacks[ "clause" ].top().c_str() ) ) ;
rulestacks[ "clause" ].pop() ;
#ifdef TDEBUG
printf( "in phrase rule 17: top of stack is %s\n", rulestacks[ "phrase" ].top().c_str() ) ;
#endif
} ;
| '(' nonterminal headclause ')' { $$ = $3 ;
rulestacks[ "phrase" ].push( output( "%s", 1, rulestacks[ "headclause" ].top().c_str() ) ) ;
rulestacks[ "headclause" ].pop() ;
#ifdef TDEBUG
printf( "in phrase rule 18: top of stack is %s\n", rulestacks[ "phrase" ].top().c_str() ) ;
#endif
} ;
| '(' nonterminal headphrase phrase ')' { $$ = output( "[%s, %s]", 2, $3, $4 ) ;
result = output( "type(%s@%s, _)", 2, rulestacks[ "headphrase" ].top().c_str(), rulestacks[ "phrase" ].top().c_str() ) ;
rulestacks[ "headphrase" ].pop() ;
rulestacks[ "phrase" ].pop() ;
rulestacks[ "phrase" ].push( result ) ;
#ifdef TDEBUG
printf( "in phrase rule 19: top of stack is %s\n", rulestacks[ "phrase" ].top().c_str() ) ;
#endif
} ;
| '(' nonterminal phrase headphrase ')' { $$ = output( "[%s, %s]", 2, $3, $4 ) ;
result = output( "type(%s@%s, _)", 2, rulestacks[ "headphrase" ].top().c_str(), rulestacks[ "phrase" ].top().c_str() ) ;
rulestacks[ "headphrase" ].pop() ;
rulestacks[ "phrase" ].pop() ;
rulestacks[ "phrase" ].push( result ) ;
#ifdef TDEBUG
printf( "in phrase rule 20: top of stack is %s\n", rulestacks[ "phrase" ].top().c_str() ) ;
#endif
} ;
/*phstart : '(' nonterminal ; */
word : '@' subword { $$ = $2 ;
rulestacks[ "word" ].push( rulestacks[ "subword" ].top().c_str() ) ;
rulestacks[ "subword" ].pop() ;
#ifdef TDEBUG
printf( "in word rule 1: top of stack is %s\n", rulestacks[ "word" ].top().c_str() ) ;
#endif
} ;
| subword { $$ = $1 ;
rulestacks[ "word" ].push( rulestacks[ "subword" ].top().c_str() ) ;
rulestacks[ "subword" ].pop() ;
#ifdef TDEBUG
printf( "in word rule 2: top of stack is %s\n", rulestacks[ "word" ].top().c_str() ) ;
#endif
} ;
subword : '(' pos '@' terminal ')' { $$ = $4 ;
rulestacks[ "subword" ].push( output( "type(%s, _)", 1, rulestacks[ "terminal" ].top().c_str() ) ) ;
rulestacks[ "terminal" ].pop() ;
#ifdef TDEBUG
printf( "in subword rule: top of stack is %s\n", rulestacks[ "subword" ].top().c_str() ) ;
#endif
} ;
s : S_TOKEN {} ;
pos : POS_TOKEN {} ;
terminal : TERMINAL_TOKEN { rulestacks[ "terminal" ].push( $1 ) ;
#ifdef TDEBUG
printf( "in terminal rule: top of stack is %s\n", rulestacks[ "terminal" ].top().c_str() ) ;
#endif
} ;
nonterminal : NON_TERMINAL_TOKEN {} ;
%%
int main(int argc, char** argv) {
// open a file handle to given file:
if ( argc > 1 ) {
FILE *myfile = fopen( argv[1], "r");
// make sure it is valid:
if (!myfile) {
printf( "Can't open input file!" ) ;
return -1;
}
// set flex to read from it instead of defaulting to STDIN:
yyin = myfile;
// set debugger to trace to stderr; redirect to errorlog if desired
yydebug = DEBUG;
// Configure the rule stacks
makeRuleStacks( rules ) ;
// parse through the input until there is no more:
do {
yyparse();
} while (!feof(yyin));
} else yyerror( "No input file specified!\n" ) ;
}