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
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
|
/*************************************************************************
* Copyright (C) 2009 Tavian Barnes <tavianator@gmail.com> *
* *
* This file is part of Dimension. *
* *
* Dimension is free software; you can redistribute it and/or modify it *
* under the terms of the GNU General Public License as published by the *
* Free Software Foundation; either version 3 of the License, or (at *
* your option) any later version. *
* *
* Dimension is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>. *
*************************************************************************/
%{
#include "parse.h"
#include "tokenize.h"
#include "utility.h"
#include <stdlib.h>
#include <stdio.h>
typedef struct dmnsn_token_iterator {
const dmnsn_array *tokens;
unsigned int i;
} dmnsn_token_iterator;
typedef struct dmnsn_location {
const char *first_filename, *last_filename;
int first_line, last_line;
int first_column, last_column;
} dmnsn_location;
typedef union YYSTYPE {
const char *value;
dmnsn_astnode astnode;
} YYSTYPE;
#define YYLTYPE dmnsn_location
#define YYLLOC_DEFAULT(Current, Rhs, N) \
do { \
if (N) { \
(Current).first_filename = YYRHSLOC(Rhs, 1).first_filename; \
(Current).first_line = YYRHSLOC(Rhs, 1).first_line; \
(Current).first_column = YYRHSLOC(Rhs, 1).first_column; \
(Current).last_filename = YYRHSLOC(Rhs, N).last_filename; \
(Current).last_line = YYRHSLOC(Rhs, N).last_line; \
(Current).last_column = YYRHSLOC(Rhs, N).last_column; \
} else { \
(Current).first_filename = (Current).last_filename = \
YYRHSLOC(Rhs, 0).last_filename; \
(Current).first_line = (Current).last_line = \
YYRHSLOC(Rhs, 0).last_line; \
(Current).first_column = (Current).last_column = \
YYRHSLOC(Rhs, 0).last_column; \
} \
} while (0)
/* Create a new astnode, populating filename, line, and col */
static dmnsn_astnode
dmnsn_copy_astnode(dmnsn_astnode astnode)
{
dmnsn_astnode copy = {
.type = astnode.type,
.children = dmnsn_new_array(sizeof(dmnsn_astnode)),
.ptr = NULL,
.filename = astnode.filename,
.line = astnode.line,
.col = astnode.col
};
return copy;
}
static dmnsn_astnode
dmnsn_new_astnode(dmnsn_astnode_type type, YYLTYPE lloc)
{
dmnsn_astnode astnode = {
.type = type,
.children = dmnsn_new_array(sizeof(dmnsn_astnode)),
.ptr = NULL,
.filename = lloc.first_filename,
.line = lloc.first_line,
.col = lloc.first_column
};
return astnode;
}
static dmnsn_astnode
dmnsn_new_astnode1(dmnsn_astnode_type type, YYLTYPE lloc, dmnsn_astnode n1)
{
dmnsn_astnode astnode = dmnsn_new_astnode(type, lloc);
dmnsn_array_push(astnode.children, &n1);
return astnode;
}
static dmnsn_astnode
dmnsn_new_astnode2(dmnsn_astnode_type type, YYLTYPE lloc,
dmnsn_astnode n1, dmnsn_astnode n2)
{
dmnsn_astnode astnode = dmnsn_new_astnode(type, lloc);
dmnsn_array_push(astnode.children, &n1);
dmnsn_array_push(astnode.children, &n2);
return astnode;
}
static dmnsn_astnode
dmnsn_new_astnode3(dmnsn_astnode_type type, YYLTYPE lloc,
dmnsn_astnode n1, dmnsn_astnode n2, dmnsn_astnode n3)
{
dmnsn_astnode astnode = dmnsn_new_astnode(type, lloc);
dmnsn_array_push(astnode.children, &n1);
dmnsn_array_push(astnode.children, &n2);
dmnsn_array_push(astnode.children, &n3);
return astnode;
}
/* Delete a single, unused astnode */
static void
dmnsn_delete_astnode(dmnsn_astnode astnode)
{
dmnsn_delete_astree(astnode.children);
free(astnode.ptr);
}
static int
yylex(YYSTYPE *lvalp, YYLTYPE *llocp, dmnsn_token_iterator *iterator)
{
if (iterator->i >= dmnsn_array_size(iterator->tokens)) {
return 0;
} else {
dmnsn_token token;
dmnsn_array_get(iterator->tokens, iterator->i, &token);
++iterator->i;
lvalp->value = token.value;
llocp->first_filename = llocp->last_filename = token.filename;
llocp->first_line = llocp->last_line = token.line;
llocp->first_column = llocp->last_column = token.col;
return token.type;
}
}
void
yyerror(YYLTYPE *locp, dmnsn_array *astree, dmnsn_token_iterator *iterator,
const char *str)
{
dmnsn_diagnostic(locp->first_filename, locp->first_line, locp->first_column,
"%s", str);
}
%}
%define api.pure
%locations
%error-verbose
%token-table
%parse-param {dmnsn_array *astree}
%parse-param {dmnsn_token_iterator *iterator}
%lex-param {dmnsn_token_iterator *iterator}
%token END 0 "end-of-file"
/* Punctuation */
%token DMNSN_T_LBRACE "{"
%token DMNSN_T_RBRACE "}"
%token DMNSN_T_LPAREN "("
%token DMNSN_T_RPAREN ")"
%token DMNSN_T_LBRACKET "["
%token DMNSN_T_RBRACKET "]"
%token DMNSN_T_PLUS "+"
%token DMNSN_T_MINUS "-"
%token DMNSN_T_STAR "*"
%token DMNSN_T_SLASH "/"
%token DMNSN_T_COMMA ","
%token DMNSN_T_SEMICOLON ";"
%token DMNSN_T_QUESTION "?"
%token DMNSN_T_COLON ":"
%token DMNSN_T_AND "&"
%token DMNSN_T_DOT "."
%token DMNSN_T_PIPE "|"
%token DMNSN_T_LESS "<"
%token DMNSN_T_GREATER ">"
%token DMNSN_T_BANG "!"
%token DMNSN_T_EQUALS "="
%token DMNSN_T_LESS_EQUAL "<="
%token DMNSN_T_GREATER_EQUAL ">="
%token DMNSN_T_NOT_EQUAL "!="
/* Numeric values */
%token <value> DMNSN_T_INTEGER "integer"
%token <value> DMNSN_T_FLOAT "float"
/* Keywords */
%token DMNSN_T_AA_LEVEL
%token DMNSN_T_AA_THRESHOLD
%token DMNSN_T_ABS
%token DMNSN_T_ABSORPTION
%token DMNSN_T_ACCURACY
%token DMNSN_T_ACOS
%token DMNSN_T_ACOSH
%token DMNSN_T_ADAPTIVE
%token DMNSN_T_ADC_BAILOUT
%token DMNSN_T_AGATE
%token DMNSN_T_AGATE_TURB
%token DMNSN_T_ALL
%token DMNSN_T_ALL_INTERSECTIONS
%token DMNSN_T_ALPHA
%token DMNSN_T_ALTITUDE
%token DMNSN_T_ALWAYS_SAMPLE
%token DMNSN_T_AMBIENT
%token DMNSN_T_AMBIENT_LIGHT
%token DMNSN_T_ANGLE
%token DMNSN_T_APERTURE
%token DMNSN_T_APPEND
%token DMNSN_T_ARC_ANGLE
%token DMNSN_T_AREA_LIGHT
%token DMNSN_T_ARRAY
%token DMNSN_T_ASC
%token DMNSN_T_ASCII
%token DMNSN_T_ASIN
%token DMNSN_T_ASINH
%token DMNSN_T_ASSUMED_GAMMA
%token DMNSN_T_ATAN
%token DMNSN_T_ATAN2
%token DMNSN_T_ATANH
%token DMNSN_T_AUTOSTOP
%token DMNSN_T_AVERAGE
%token DMNSN_T_B_SPLINE
%token DMNSN_T_BACKGROUND
%token DMNSN_T_BEZIER_SPLINE
%token DMNSN_T_BICUBIC_PATCH
%token DMNSN_T_BLACK_HOLE
%token DMNSN_T_BLOB
%token DMNSN_T_BLUE
%token DMNSN_T_BLUR_SAMPLES
%token DMNSN_T_BOUNDED_BY
%token DMNSN_T_BOX "box"
%token DMNSN_T_BOXED
%token DMNSN_T_BOZO
%token DMNSN_T_BRICK
%token DMNSN_T_BRICK_SIZE
%token DMNSN_T_BRIGHTNESS
%token DMNSN_T_BRILLIANCE
%token DMNSN_T_BUMP_MAP
%token DMNSN_T_BUMP_SIZE
%token DMNSN_T_BUMPS
%token DMNSN_T_CAMERA "camera"
%token DMNSN_T_CAUSTICS
%token DMNSN_T_CEIL
%token DMNSN_T_CELLS
%token DMNSN_T_CHARSET
%token DMNSN_T_CHECKER
%token DMNSN_T_CHR
%token DMNSN_T_CIRCULAR
%token DMNSN_T_CLIPPED_BY
%token DMNSN_T_CLOCK
%token DMNSN_T_CLOCK_DELTA
%token DMNSN_T_CLOCK_ON
%token DMNSN_T_COLLECT
%token DMNSN_T_COLOR "color"
%token DMNSN_T_COLOR_MAP
%token DMNSN_T_COMPONENT
%token DMNSN_T_COMPOSITE
%token DMNSN_T_CONCAT
%token DMNSN_T_CONE
%token DMNSN_T_CONFIDENCE
%token DMNSN_T_CONIC_SWEEP
%token DMNSN_T_CONSERVE_ENERGY
%token DMNSN_T_CONTAINED_BY
%token DMNSN_T_CONTROL0
%token DMNSN_T_CONTROL1
%token DMNSN_T_COORDS
%token DMNSN_T_COS
%token DMNSN_T_COSH
%token DMNSN_T_COUNT
%token DMNSN_T_CRACKLE
%token DMNSN_T_CRAND
%token DMNSN_T_CUBE
%token DMNSN_T_CUBIC
%token DMNSN_T_CUBIC_SPLINE
%token DMNSN_T_CUBIC_WAVE
%token DMNSN_T_CUTAWAY_TEXTURES
%token DMNSN_T_CYLINDER
%token DMNSN_T_CYLINDRICAL
%token DMNSN_T_DEFINED
%token DMNSN_T_DEGREES
%token DMNSN_T_DENSITY
%token DMNSN_T_DENSITY_FILE
%token DMNSN_T_DENSITY_MAP
%token DMNSN_T_DENTS
%token DMNSN_T_DF3
%token DMNSN_T_DIFFERENCE
%token DMNSN_T_DIFFUSE
%token DMNSN_T_DIMENSION_SIZE
%token DMNSN_T_DIMENSIONS
%token DMNSN_T_DIRECTION
%token DMNSN_T_DISC
%token DMNSN_T_DISPERSION
%token DMNSN_T_DISPERSION_SAMPLES
%token DMNSN_T_DIST_EXP
%token DMNSN_T_DISTANCE
%token DMNSN_T_DIV
%token DMNSN_T_DOUBLE_ILLUMINATE
%token DMNSN_T_ECCENTRICITY
%token DMNSN_T_EMISSION
%token DMNSN_T_ERROR_BOUND
%token DMNSN_T_EVALUATE
%token DMNSN_T_EXP
%token DMNSN_T_EXPAND_THRESHOLDS
%token DMNSN_T_EXPONENT
%token DMNSN_T_EXTERIOR
%token DMNSN_T_EXTINCTION
%token DMNSN_T_FACE_INDICES
%token DMNSN_T_FACETS
%token DMNSN_T_FADE_COLOR
%token DMNSN_T_FADE_DISTANCE
%token DMNSN_T_FADE_POWER
%token DMNSN_T_FALLOFF
%token DMNSN_T_FALLOFF_ANGLE
%token DMNSN_T_FALSE
%token DMNSN_T_FILE_EXISTS
%token DMNSN_T_FILTER
%token DMNSN_T_FINAL_CLOCK
%token DMNSN_T_FINAL_FRAME
%token DMNSN_T_FINISH
%token DMNSN_T_FISHEYE
%token DMNSN_T_FLATNESS
%token DMNSN_T_FLIP
%token DMNSN_T_FLOOR
%token DMNSN_T_FOCAL_POINT
%token DMNSN_T_FOG
%token DMNSN_T_FOG_ALT
%token DMNSN_T_FOG_OFFSET
%token DMNSN_T_FOG_TYPE
%token DMNSN_T_FORM
%token DMNSN_T_FRAME_NUMBER
%token DMNSN_T_FREQUENCY
%token DMNSN_T_FRESNEL
%token DMNSN_T_FUNCTION
%token DMNSN_T_GATHER
%token DMNSN_T_GIF
%token DMNSN_T_GLOBAL_LIGHTS
%token DMNSN_T_GLOBAL_SETTINGS
%token DMNSN_T_GRADIENT
%token DMNSN_T_GRANITE
%token DMNSN_T_GRAY
%token DMNSN_T_GRAY_THRESHOLD
%token DMNSN_T_GREEN
%token DMNSN_T_HEIGHT_FIELD
%token DMNSN_T_HEXAGON
%token DMNSN_T_HF_GRAY_16
%token DMNSN_T_HIERARCHY
%token DMNSN_T_HYPERCOMPLEX
%token DMNSN_T_HOLLOW
%token DMNSN_T_IFF
%token DMNSN_T_IMAGE_HEIGHT
%token DMNSN_T_IMAGE_MAP
%token DMNSN_T_IMAGE_PATTERN
%token DMNSN_T_IMAGE_WIDTH
%token DMNSN_T_INITIAL_CLOCK
%token DMNSN_T_INITIAL_FRAME
%token DMNSN_T_INSIDE
%token DMNSN_T_INSIDE_VECTOR
%token DMNSN_T_INT
%token DMNSN_T_INTERIOR
%token DMNSN_T_INTERIOR_TEXTURE
%token DMNSN_T_INTERNAL
%token DMNSN_T_INTERPOLATE
%token DMNSN_T_INTERSECTION
%token DMNSN_T_INTERVALS
%token DMNSN_T_INVERSE
%token DMNSN_T_IOR
%token DMNSN_T_IRID
%token DMNSN_T_IRID_WAVELENGTH
%token DMNSN_T_ISOSURFACE
%token DMNSN_T_JITTER
%token DMNSN_T_JPEG
%token DMNSN_T_JULIA
%token DMNSN_T_JULIA_FRACTAL
%token DMNSN_T_LAMBDA
%token DMNSN_T_LATHE
%token DMNSN_T_LEOPARD
%token DMNSN_T_LIGHT_GROUP
%token DMNSN_T_LIGHT_SOURCE
%token DMNSN_T_LINEAR_SPLINE
%token DMNSN_T_LINEAR_SWEEP
%token DMNSN_T_LN
%token DMNSN_T_LOAD_FILE
%token DMNSN_T_LOCATION
%token DMNSN_T_LOG
%token DMNSN_T_LOOK_AT
%token DMNSN_T_LOOKS_LIKE
%token DMNSN_T_LOW_ERROR_FACTOR
%token DMNSN_T_MAGNET
%token DMNSN_T_MAJOR_RADIUS
%token DMNSN_T_MANDEL
%token DMNSN_T_MAP_TYPE
%token DMNSN_T_MARBLE
%token DMNSN_T_MATERIAL
%token DMNSN_T_MATERIAL_MAP
%token DMNSN_T_MATRIX
%token DMNSN_T_MAX
%token DMNSN_T_MAX_EXTENT
%token DMNSN_T_MAX_GRADIENT
%token DMNSN_T_MAX_INTERSECTIONS
%token DMNSN_T_MAX_ITERATION
%token DMNSN_T_MAX_SAMPLE
%token DMNSN_T_MAX_TRACE
%token DMNSN_T_MAX_TRACE_LEVEL
%token DMNSN_T_MEDIA
%token DMNSN_T_MEDIA_ATTENUATION
%token DMNSN_T_MEDIA_INTERACTION
%token DMNSN_T_MERGE
%token DMNSN_T_MESH
%token DMNSN_T_MESH2
%token DMNSN_T_METALLIC
%token DMNSN_T_METHOD
%token DMNSN_T_METRIC
%token DMNSN_T_MIN
%token DMNSN_T_MIN_EXTENT
%token DMNSN_T_MINIMUM_REUSE
%token DMNSN_T_MOD
%token DMNSN_T_MORTAR
%token DMNSN_T_NATURAL_SPLINE
%token DMNSN_T_NEAREST_COUNT
%token DMNSN_T_NO
%token DMNSN_T_NO_BUMP_SCALE
%token DMNSN_T_NO_IMAGE
%token DMNSN_T_NO_REFLECTION
%token DMNSN_T_NO_SHADOW
%token DMNSN_T_NOISE_GENERATOR
%token DMNSN_T_NORMAL
%token DMNSN_T_NORMAL_INDICES
%token DMNSN_T_NORMAL_MAP
%token DMNSN_T_NORMAL_VECTORS
%token DMNSN_T_NUMBER_OF_WAVES
%token DMNSN_T_OBJECT
%token DMNSN_T_OCTAVES
%token DMNSN_T_OFF
%token DMNSN_T_OFFSET
%token DMNSN_T_OMEGA
%token DMNSN_T_OMNIMAX
%token DMNSN_T_ON
%token DMNSN_T_ONCE
%token DMNSN_T_ONION
%token DMNSN_T_OPEN
%token DMNSN_T_ORIENT
%token DMNSN_T_ORIENTATION
%token DMNSN_T_ORTHOGRAPHIC
%token DMNSN_T_PANORAMIC
%token DMNSN_T_PARALLEL
%token DMNSN_T_PARAMETRIC
%token DMNSN_T_PASS_THROUGH
%token DMNSN_T_PATTERN
%token DMNSN_T_PERSPECTIVE
%token DMNSN_T_PGM
%token DMNSN_T_PHASE
%token DMNSN_T_PHONG
%token DMNSN_T_PHONG_SIZE
%token DMNSN_T_PHOTONS
%token DMNSN_T_PI
%token DMNSN_T_PIGMENT
%token DMNSN_T_PIGMENT_MAP
%token DMNSN_T_PIGMENT_PATTERN
%token DMNSN_T_PLANAR
%token DMNSN_T_PLANE
%token DMNSN_T_PNG
%token DMNSN_T_POINT_AT
%token DMNSN_T_POLY
%token DMNSN_T_POLY_WAVE
%token DMNSN_T_POLYGON
%token DMNSN_T_POT
%token DMNSN_T_POW
%token DMNSN_T_PPM
%token DMNSN_T_PRECISION
%token DMNSN_T_PRECOMPUTE
%token DMNSN_T_PRETRACE_END
%token DMNSN_T_PRETRACE_START
%token DMNSN_T_PRISM
%token DMNSN_T_PROD
%token DMNSN_T_PROJECTED_THROUGH
%token DMNSN_T_PWR
%token DMNSN_T_QUADRATIC_SPLINE
%token DMNSN_T_QUADRIC
%token DMNSN_T_QUARTIC
%token DMNSN_T_QUATERNION
%token DMNSN_T_QUICK_COLOR
%token DMNSN_T_QUILTED
%token DMNSN_T_RADIAL
%token DMNSN_T_RADIANS
%token DMNSN_T_RADIOSITY
%token DMNSN_T_RADIUS
%token DMNSN_T_RAINBOW
%token DMNSN_T_RAMP_WAVE
%token DMNSN_T_RAND
%token DMNSN_T_RATIO
%token DMNSN_T_RECIPROCAL
%token DMNSN_T_RECURSION_LIMIT
%token DMNSN_T_RED
%token DMNSN_T_REFLECTION
%token DMNSN_T_REFLECTION_EXPONENT
%token DMNSN_T_REFRACTION
%token DMNSN_T_REPEAT
%token DMNSN_T_RGB
%token DMNSN_T_RGBF
%token DMNSN_T_RGBFT
%token DMNSN_T_RGBT
%token DMNSN_T_RIGHT
%token DMNSN_T_RIPPLES
%token DMNSN_T_ROTATE
%token DMNSN_T_ROUGHNESS
%token DMNSN_T_SAMPLES
%token DMNSN_T_SAVE_FILE
%token DMNSN_T_SCALE
%token DMNSN_T_SCALLOP_WAVE
%token DMNSN_T_SCATTERING
%token DMNSN_T_SEED
%token DMNSN_T_SELECT
%token DMNSN_T_SHADOWLESS
%token DMNSN_T_SIN
%token DMNSN_T_SINE_WAVE
%token DMNSN_T_SINH
%token DMNSN_T_SIZE
%token DMNSN_T_SKY
%token DMNSN_T_SKY_SPHERE
%token DMNSN_T_SLICE
%token DMNSN_T_SLOPE
%token DMNSN_T_SLOPE_MAP
%token DMNSN_T_SMOOTH
%token DMNSN_T_SMOOTH_TRIANGLE
%token DMNSN_T_SOLID
%token DMNSN_T_SOR
%token DMNSN_T_SPACING
%token DMNSN_T_SPECULAR
%token DMNSN_T_SPHERE "sphere"
%token DMNSN_T_SPHERE_SWEEP
%token DMNSN_T_SPHERICAL
%token DMNSN_T_SPIRAL1
%token DMNSN_T_SPIRAL2
%token DMNSN_T_SPLINE
%token DMNSN_T_SPLIT_UNION
%token DMNSN_T_SPOTLIGHT
%token DMNSN_T_SPOTTED
%token DMNSN_T_SQR
%token DMNSN_T_SQRT
%token DMNSN_T_STR
%token DMNSN_T_STRCMP
%token DMNSN_T_STRENGTH
%token DMNSN_T_STRLEN
%token DMNSN_T_STRLWR
%token DMNSN_T_STRUPR
%token DMNSN_T_STURM
%token DMNSN_T_SUBSTR
%token DMNSN_T_SUM
%token DMNSN_T_SUPERELLIPSOID
%token DMNSN_T_SYS
%token DMNSN_T_T
%token DMNSN_T_TAN
%token DMNSN_T_TANH
%token DMNSN_T_TARGET
%token DMNSN_T_TEXT
%token DMNSN_T_TEXTURE
%token DMNSN_T_TEXTURE_LIST
%token DMNSN_T_TEXTURE_MAP
%token DMNSN_T_TGA
%token DMNSN_T_THICKNESS
%token DMNSN_T_THRESHOLD
%token DMNSN_T_TIFF
%token DMNSN_T_TIGHTNESS
%token DMNSN_T_TILE2
%token DMNSN_T_TILES
%token DMNSN_T_TOLERANCE
%token DMNSN_T_TOROIDAL
%token DMNSN_T_TORUS
%token DMNSN_T_TRACE
%token DMNSN_T_TRANSFORM
%token DMNSN_T_TRANSLATE
%token DMNSN_T_TRANSMIT
%token DMNSN_T_TRIANGLE
%token DMNSN_T_TRIANGLE_WAVE
%token DMNSN_T_TRUE
%token DMNSN_T_TTF
%token DMNSN_T_TURB_DEPTH
%token DMNSN_T_TURBULENCE
%token DMNSN_T_TYPE
%token DMNSN_T_U
%token DMNSN_T_U_STEPS
%token DMNSN_T_ULTRA_WIDE_ANGLE
%token DMNSN_T_UNION
%token DMNSN_T_UP
%token DMNSN_T_USE_ALPHA
%token DMNSN_T_USE_COLOR
%token DMNSN_T_USE_INDEX
%token DMNSN_T_UTF8
%token DMNSN_T_UV_INDICES
%token DMNSN_T_UV_MAPPING
%token DMNSN_T_UV_VECTORS
%token DMNSN_T_V
%token DMNSN_T_V_STEPS
%token DMNSN_T_VAL
%token DMNSN_T_VARIANCE
%token DMNSN_T_VAXIS_ROTATE
%token DMNSN_T_VCROSS
%token DMNSN_T_VDOT
%token DMNSN_T_VERTEX_VECTORS
%token DMNSN_T_VLENGTH
%token DMNSN_T_VNORMALIZE
%token DMNSN_T_VROTATE
%token DMNSN_T_VSTR
%token DMNSN_T_VTURBULENCE
%token DMNSN_T_WARP
%token DMNSN_T_WATER_LEVEL
%token DMNSN_T_WAVES
%token DMNSN_T_WIDTH
%token DMNSN_T_WOOD
%token DMNSN_T_WRINKLES
%token DMNSN_T_X
%token DMNSN_T_Y
%token DMNSN_T_YES
%token DMNSN_T_Z
/* Directives (#declare etc.) */
%token DMNSN_T_BREAK
%token DMNSN_T_CASE
%token DMNSN_T_DEBUG
%token DMNSN_T_DECLARE "#declare"
%token DMNSN_T_DEFAULT
%token DMNSN_T_ELSE
%token DMNSN_T_END
%token DMNSN_T_ERROR
%token DMNSN_T_FCLOSE
%token DMNSN_T_FOPEN
%token DMNSN_T_IF
%token DMNSN_T_IFDEF
%token DMNSN_T_IFNDEF
%token DMNSN_T_INCLUDE "#include"
%token DMNSN_T_LOCAL
%token DMNSN_T_MACRO
%token DMNSN_T_RANGE
%token DMNSN_T_READ
%token DMNSN_T_RENDER
%token DMNSN_T_STATISTICS
%token DMNSN_T_SWITCH
%token DMNSN_T_UNDEF
%token DMNSN_T_VERSION
%token DMNSN_T_WARNING
%token DMNSN_T_WHILE
%token DMNSN_T_WRITE
/* Identifiers */
%token <value> DMNSN_T_IDENTIFIER "identifier"
/* Strings */
%token <value> DMNSN_T_STRING "string"
/* Top-level items */
%type <astnode> SCENE_ITEM
/* Objects */
%type <astnode> OBJECT
%type <astnode> FINITE_SOLID_OBJECT
%type <astnode> BOX
%type <astnode> SPHERE
/* Floats */
%type <astnode> FLOAT
%type <astnode> FLOAT_TERM
%type <astnode> FLOAT_FACTOR
%type <astnode> FLOAT_LITERAL
/* Vectors */
%type <astnode> VECTOR
%type <astnode> VECTOR_LITERAL
%destructor { dmnsn_delete_astnode($$); } <astnode>
%%
SCENE: /* empty */ { }
| SCENE SCENE_ITEM {
dmnsn_array_push(astree, &$2);
}
;
SCENE_ITEM: OBJECT
;
OBJECT: FINITE_SOLID_OBJECT
;
FINITE_SOLID_OBJECT: BOX
| SPHERE
;
BOX: "box" "{"
VECTOR "," VECTOR
"}"
{
$$ = dmnsn_new_astnode2(DMNSN_AST_BOX, @$, $3, $5);
}
;
SPHERE: "sphere" "{"
VECTOR "," FLOAT
"}"
{
$$ = dmnsn_new_astnode2(DMNSN_AST_SPHERE, @$, $3, $5);
}
;
FLOAT: FLOAT_TERM
{
$$ = dmnsn_eval_scalar($1);
dmnsn_delete_astnode($1);
}
| FLOAT "+" FLOAT_TERM
{
dmnsn_astnode sum = dmnsn_new_astnode2(DMNSN_AST_ADD, @$, $1, $3);
$$ = dmnsn_eval_scalar(sum);
dmnsn_delete_astnode(sum);
}
| FLOAT "-" FLOAT_TERM
{
dmnsn_astnode diff = dmnsn_new_astnode2(DMNSN_AST_SUB, @$, $1, $3);
$$ = dmnsn_eval_scalar(diff);
dmnsn_delete_astnode(diff);
}
;
FLOAT_TERM: FLOAT_FACTOR
| FLOAT_TERM "*" FLOAT_FACTOR
{
$$ = dmnsn_new_astnode2(DMNSN_AST_MUL, @$, $1, $3);
}
| FLOAT_TERM "/" FLOAT_FACTOR
{
$$ = dmnsn_new_astnode2(DMNSN_AST_DIV, @$, $1, $3);
}
FLOAT_FACTOR: FLOAT_LITERAL
| "+" FLOAT_FACTOR { $$ = $2; }
| "-" FLOAT_FACTOR
{
$$ = dmnsn_new_astnode1(DMNSN_AST_NEGATE, @$, $2);
}
| "(" FLOAT ")" { $$ = $2; }
FLOAT_LITERAL: "integer"
{
$$ = dmnsn_new_astnode(DMNSN_AST_INTEGER, @$);
$$.ptr = malloc(sizeof(long));
if (!$$.ptr)
dmnsn_error(DMNSN_SEVERITY_HIGH,
"Failed to allocate room for integer.");
*(long *)$$.ptr = strtol($1, NULL, 0);
}
| "float"
{
$$ = dmnsn_new_astnode(DMNSN_AST_FLOAT, @$);
$$.ptr = malloc(sizeof(double));
if (!$$.ptr)
dmnsn_error(DMNSN_SEVERITY_HIGH,
"Failed to allocate room for float.");
*(double *)$$.ptr = strtod($1, NULL);
}
;
VECTOR: VECTOR_LITERAL
;
VECTOR_LITERAL: "<" FLOAT "," FLOAT "," FLOAT ">"
{
$$ = dmnsn_new_astnode3(DMNSN_AST_VECTOR, @$, $2, $4, $6);
}
;
%%
dmnsn_array *
dmnsn_parse(const dmnsn_array *tokens)
{
dmnsn_array *astree = dmnsn_new_array(sizeof(dmnsn_astnode));
dmnsn_token_iterator iterator = { .tokens = tokens, .i = 0 };
if (yyparse(astree, &iterator) != 0) {
dmnsn_delete_astree(astree);
return NULL;
}
return astree;
}
void
dmnsn_delete_astree(dmnsn_array *astree)
{
unsigned int i;
dmnsn_astnode node;
if (astree) {
for (i = 0; i < dmnsn_array_size(astree); ++i) {
dmnsn_array_get(astree, i, &node);
dmnsn_delete_astree(node.children);
free(node.ptr);
}
dmnsn_delete_array(astree);
}
}
static dmnsn_astnode
dmnsn_eval_scalar_unary(dmnsn_astnode astnode)
{
dmnsn_astnode ret = dmnsn_copy_astnode(astnode), rhs;
dmnsn_array_get(astnode.children, 0, &rhs);
rhs = dmnsn_eval_scalar(rhs);
if (rhs.type == DMNSN_AST_INTEGER) {
long n = *(long *)rhs.ptr;
long *res = malloc(sizeof(long));
if (!res)
dmnsn_error(DMNSN_SEVERITY_HIGH, "Failed to allocate room for integer.");
switch(astnode.type) {
case DMNSN_AST_NEGATE:
*res = -n;
break;
default:
dmnsn_error(DMNSN_SEVERITY_HIGH,
"Attempt to evaluate wrong unary operator.");
}
ret.type = DMNSN_AST_INTEGER;
ret.ptr = res;
} else if (rhs.type == DMNSN_AST_FLOAT) {
double n = *(double *)rhs.ptr;
double *res = malloc(sizeof(double));
if (!res)
dmnsn_error(DMNSN_SEVERITY_HIGH, "Failed to allocate room for float.");
switch(astnode.type) {
case DMNSN_AST_NEGATE:
*res = -n;
break;
default:
dmnsn_error(DMNSN_SEVERITY_HIGH,
"Attempt to evaluate wrong unary operator.");
}
ret.type = DMNSN_AST_FLOAT;
ret.ptr = res;
} else {
dmnsn_error(DMNSN_SEVERITY_HIGH,
"Invalid right hand side to unary operator.");
}
dmnsn_delete_astnode(rhs);
return ret;
}
static dmnsn_astnode
dmnsn_eval_scalar_binary(dmnsn_astnode astnode)
{
dmnsn_astnode ret = dmnsn_copy_astnode(astnode), lhs, rhs;
dmnsn_array_get(astnode.children, 0, &lhs);
dmnsn_array_get(astnode.children, 1, &rhs);
lhs = dmnsn_eval_scalar(lhs);
rhs = dmnsn_eval_scalar(rhs);
if (lhs.type == DMNSN_AST_INTEGER && rhs.type == DMNSN_AST_INTEGER
&& astnode.type != DMNSN_AST_DIV) {
long l, r;
l = *(long *)lhs.ptr;
r = *(long *)rhs.ptr;
long *res = malloc(sizeof(long));
if (!res)
dmnsn_error(DMNSN_SEVERITY_HIGH, "Failed to allocate room for integer.");
switch (astnode.type) {
case DMNSN_AST_ADD:
*res = l + r;
break;
case DMNSN_AST_SUB:
*res = l - r;
break;
case DMNSN_AST_MUL:
*res = l*r;
break;
default:
dmnsn_error(DMNSN_SEVERITY_HIGH,
"Attempt to evaluate wrong binary operator.");
}
ret.type = DMNSN_AST_INTEGER;
ret.ptr = res;
} else {
double l = 0.0, r = 0.0;
if (lhs.type == DMNSN_AST_INTEGER)
l = *(long *)lhs.ptr;
else if (lhs.type == DMNSN_AST_FLOAT)
l = *(double *)lhs.ptr;
else
dmnsn_error(DMNSN_SEVERITY_HIGH,
"Invalid left hand side to binary operator.");
if (rhs.type == DMNSN_AST_INTEGER)
r = *(long *)rhs.ptr;
else if (rhs.type == DMNSN_AST_FLOAT)
r = *(double *)rhs.ptr;
else
dmnsn_error(DMNSN_SEVERITY_HIGH,
"Invalid right hand side to binary operator.");
double *res = malloc(sizeof(double));
if (!res)
dmnsn_error(DMNSN_SEVERITY_HIGH, "Failed to allocate room for float.");
switch (astnode.type) {
case DMNSN_AST_ADD:
*res = l + r;
break;
case DMNSN_AST_SUB:
*res = l - r;
break;
case DMNSN_AST_MUL:
*res = l*r;
break;
case DMNSN_AST_DIV:
*res = l/r;
break;
default:
dmnsn_error(DMNSN_SEVERITY_HIGH,
"Attempt to evaluate wrong binary operator.");
}
ret.type = DMNSN_AST_FLOAT;
ret.ptr = res;
}
dmnsn_delete_astnode(lhs);
dmnsn_delete_astnode(rhs);
return ret;
}
dmnsn_astnode
dmnsn_eval_scalar(dmnsn_astnode astnode)
{
dmnsn_astnode ret;
switch (astnode.type) {
case DMNSN_AST_INTEGER:
ret = dmnsn_copy_astnode(astnode);
ret.ptr = malloc(sizeof(long));
if (!ret.ptr)
dmnsn_error(DMNSN_SEVERITY_HIGH, "Failed to allocate room for integer.");
memcpy(ret.ptr, astnode.ptr, sizeof(long));
return ret;
case DMNSN_AST_FLOAT:
ret = dmnsn_copy_astnode(astnode);
ret.ptr = malloc(sizeof(double));
if (!ret.ptr)
dmnsn_error(DMNSN_SEVERITY_HIGH, "Failed to allocate room for float.");
memcpy(ret.ptr, astnode.ptr, sizeof(double));
return ret;
case DMNSN_AST_NEGATE:
return dmnsn_eval_scalar_unary(astnode);
case DMNSN_AST_ADD:
case DMNSN_AST_SUB:
case DMNSN_AST_MUL:
case DMNSN_AST_DIV:
return dmnsn_eval_scalar_binary(astnode);
default:
dmnsn_error(DMNSN_SEVERITY_HIGH,
"Given non-arithmetic-expression to evaluate.");
return astnode; /* Silence warning */
}
}
/* TODO */
dmnsn_astnode dmnsn_eval_vector(dmnsn_astnode astnode);
static void
dmnsn_print_astnode(FILE *file, dmnsn_astnode astnode)
{
long ivalue;
double dvalue;
switch (astnode.type) {
case DMNSN_AST_INTEGER:
ivalue = *(long *)astnode.ptr;
fprintf(file, "(%s %ld)", dmnsn_astnode_string(astnode.type), ivalue);
break;
case DMNSN_AST_FLOAT:
dvalue = *(double *)astnode.ptr;
fprintf(file, "(%s %g)", dmnsn_astnode_string(astnode.type), dvalue);
break;
default:
fprintf(file, "%s", dmnsn_astnode_string(astnode.type));
}
}
static void
dmnsn_print_astree(FILE *file, dmnsn_astnode astnode)
{
unsigned int i;
dmnsn_astnode child;
if (astnode.children && dmnsn_array_size(astnode.children) > 0) {
fprintf(file, "(");
dmnsn_print_astnode(file, astnode);
for (i = 0; i < dmnsn_array_size(astnode.children); ++i) {
dmnsn_array_get(astnode.children, i, &child);
fprintf(file, " ");
dmnsn_print_astree(file, child);
}
fprintf(file, ")");
} else {
dmnsn_print_astnode(file, astnode);
}
}
void
dmnsn_print_astree_sexpr(FILE *file, const dmnsn_array *astree)
{
dmnsn_astnode astnode;
unsigned int i;
if (dmnsn_array_size(astree) == 0) {
fprintf(file, "()");
} else {
fprintf(file, "(");
dmnsn_array_get(astree, 0, &astnode);
dmnsn_print_astree(file, astnode);
for (i = 1; i < dmnsn_array_size(astree); ++i) {
fprintf(file, " ");
dmnsn_array_get(astree, i, &astnode);
dmnsn_print_astree(file, astnode);
}
fprintf(file, ")");
}
fprintf(file, "\n");
}
const char *
dmnsn_token_string(dmnsn_token_type token_type)
{
#define TOKEN_SIZE 255
static char token[TOKEN_SIZE + 1];
unsigned int i = YYTRANSLATE(token_type);
if (i > YYNTOKENS) {
fprintf(stderr, "Warning: unrecognised token %d.\n", (int)token_type);
return "unrecognized-token";
}
/* Trim the quotation marks */
if (strlen(yytname[i]) - 1 >= TOKEN_SIZE) {
fprintf(stderr, "Warning: name of token %d too long.\n", (int)token_type);
return "unrepresentable-token";
}
strcpy(token, yytname[i] + 1);
token[strlen(token) - 1] = '\0';
return token;
#undef TOKEN_SIZE
}
const char *
dmnsn_astnode_string(dmnsn_astnode_type astnode_type)
{
switch (astnode_type) {
/* Macro to shorten this switch */
#define dmnsn_astnode_map(type, str) \
case type: \
return str;
dmnsn_astnode_map(DMNSN_AST_FLOAT, "float");
dmnsn_astnode_map(DMNSN_AST_INTEGER, "integer");
dmnsn_astnode_map(DMNSN_AST_NEGATE, "-");
dmnsn_astnode_map(DMNSN_AST_ADD, "+");
dmnsn_astnode_map(DMNSN_AST_SUB, "-");
dmnsn_astnode_map(DMNSN_AST_MUL, "*");
dmnsn_astnode_map(DMNSN_AST_DIV, "/");
dmnsn_astnode_map(DMNSN_AST_BOX, "box");
dmnsn_astnode_map(DMNSN_AST_VECTOR, "vector");
dmnsn_astnode_map(DMNSN_AST_SPHERE, "sphere");
default:
fprintf(stderr, "Warning: unrecognised astnode type %d.\n",
(int)astnode_type);
return "unrecognized-astnode";
}
}
|