Source

semantic / c.bnf

Full commit
  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
# C/C++ BNF language specification
#
# Copyright (C) 1999, 2000, 2001, 2002 Eric M. Ludlam
#
# Author: Eric M. Ludlam <zappo@gnu.org>
# X-RCS: $Id$
#
# c.bnf 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 2, or (at your option)
# any later version.
#
# This software 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 GNU Emacs; see the file COPYING.  If not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
#

%start         declaration
%scopestart    codeblock
%outputfile    semantic-c.el
%parsetable    semantic-toplevel-c-bovine-table
%keywordtable  semantic-c-keyword-table
%languagemode  (c-mode c++-mode)
%setupfunction semantic-default-c-setup

%(setq semantic-expand-nonterminal 'semantic-expand-c-nonterminal
       semantic-flex-extensions semantic-flex-c-extensions
       semantic-dependency-include-path semantic-default-c-path
       semantic-orphaned-member-metaparent-type "struct"
       semantic-symbol->name-assoc-list
        '((type     . "Types")
	  (variable . "Variables")
	  (function . "Functions")
	  (include  . "Includes"))
       semantic-symbol->name-assoc-list-for-type-parts
        '((type     . "Types")
	  (variable . "Attributes")
	  (function . "Methods")
	  (label    . "Labels")
	  )
       imenu-create-index-function 'semantic-create-imenu-index
       semantic-type-relation-separator-character '("." "->")
       semantic-command-separation-character ";"
       document-comment-start "/*"
       document-comment-line-prefix " *"
       document-comment-end " */"
       ;; Semantic navigation inside 'type children
       senator-step-at-token-ids '(function variable)
       )%

%token INCLUDE "include"
%token DEFINE "define"
%token HASH punctuation "#"
%token PERIOD punctuation "."
%token COLON punctuation ":"
%token SEMICOLON punctuation ";"
%token STAR punctuation "*"
%token AMPERSAND punctuation "&"
%token DIVIDE punctuation "/"
%token PLUS punctuation "+"
%token MINUS punctuation "-"
%token BANG punctuation "!"
%token EQUAL punctuation "="
%token LESS punctuation "<"
%token GREATER punctuation ">"
%token COMA punctuation ","
%token TILDE punctuation "~"

%token EXTERN "extern"
%put EXTERN summary "Declaration Modifier: extern <type> <name> ..."
%token STATIC "static"
%put STATIC summary "Declaration Modifier: static <type> <name> ..."
%token CONST "const"
%put CONST summary "Declaration Modifier: const <type> <name> ..."
%token VOLATILE "volatile"
%put VOLATILE summary "Declaration Modifier: volatile <type> <name> ..."
%token REGISTER "register"
%put REGISTER summary "Declaration Modifier: register <type> <name> ..."
%token SIGNED "signed"
%put SIGNED summary "Numeric Type Modifier: signed <numeric type> <name> ..."
%token UNSIGNED "unsigned"
%put UNSIGNED summary "Numeric Type Modifier: unsigned <numeric type> <name> ..."

%token INLINE "inline"
%put INLINE summary "Function Modifier: inline <return  type> <name>(...) {...};"
%token VIRTUAL "virtual"
%put VIRTUAL summary "Method Modifier: virtual <type> <name>(...) ..."
%token MUTABLE "mutable"
%put MUTABLE summary "Member Declaration Modifier: mutable <type> <name> ..."

%token STRUCT "struct"
%put STRUCT summary "Structure Type Declaration: struct [name] { ... };"
%token UNION "union"
%put UNION summary "Union Type Declaration: union [name] { ... };"
%token ENUM "enum"
%put ENUM summary "Enumeration Type Declaration: enum [name] { ... };"
%token TYPEDEF "typedef"
%put TYPEDEF summary "Arbitrary Type Declaration: typedef <typedeclaration> <name>;"
%token CLASS "class"
%put CLASS summary "Class Declaration: class <name>[:parents] { ... };"
%token TYPENAME "typename"
%put TYPENAME summary "typename is used to handle a qualified name as a typename;"
%token NAMESPACE "namespace"
%put NAMESPACE summary "Namespace Declaration: namespace <name> { ... };"
%token USING "using"
%put USING summary "using <namespace>;"

# Despite this, this parser can find templates by ignoring the TEMPLATE
# keyword, and finding the class/method being templateized.
%token TEMPLATE "template"
%put TEMPLATE summary "template <class TYPE ...> TYPE_OR_FUNCTION"

%token THROW "throw"
%put THROW summary "<type> <methoddef> (<method args>) throw (<exception>) ..."
%token REENTRANT "reentrant"
%put REENTRANT summary "<type> <methoddef> (<method args>) reentrant ..."

# Leave these alone for now.
%token OPERATOR "operator"
%token PUBLIC "public"
%token PRIVATE "private"
%token PROTECTED "protected"
%token FRIEND "friend"

# These aren't used for parsing, but is a useful place to describe the keywords.
%token IF "if"
%token ELSE "else"
%put {IF ELSE} summary  "if (<condition>) { code } [ else { code } ]"

%token DO "do"
%token WHILE "while"
%put DO summary " do { code } while (<condition>);"
%put WHILE summary "do { code } while (<condition>); or while (<condition>) { code };"

%token FOR "for"
%put FOR summary "for(<init>; <condition>; <increment>) { code }"

%token SWITCH "switch"
%token CASE "case"
%token DEFAULT "default"
%put {SWITCH CASE DEFAULT} summary
"switch (<variable>) { case <constvalue>: code; ... default: code; }"

%token RETURN "return"
%put RETURN summary "return <value>;"

%token BREAK "break"
%put BREAK summary "Non-local exit within a loop or switch (for, do/while, switch): break;"
%token CONTINUE "continue"
%put CONTINUE summary "Non-local continue within a lool (for, do/while): continue;"

%token SIZEOF "sizeof"
%put SIZEOF summary "Compile time macro: sizeof(<type or variable>) // size in bytes"

# Types
%token VOID "void"
%put VOID summary "Built in typeless type: void"
%token CHAR "char"
%put CHAR summary "Integral Character Type: (0 to 256)"
%token WCHAR "wchar_t"
%put WCHAR summary "Wide Character Type"
%token SHORT "short"
%put SHORT summary "Integral Primitive Type: (-32768 to 32767)"
%token INT "int"
%put INT summary "Integral Primitive Type: (-2147483648 to 2147483647)"
%token LONG "long"
%put LONG summary "Integral primitive type (-9223372036854775808 to 9223372036854775807)"
%token FLOAT "float"
%put FLOAT summary "Primitive floating-point type (single-precision 32-bit IEEE 754)"
%token DOUBLE "double"
%put DOUBLE summary "Primitive floating-point type (double-precision 64-bit IEEE 754)"

%token UNDERP "_P"
%token UNDERUNDERP "__P"
%put UNDERP summary "Common macro to eliminate prototype compatibility on some compilers"
%put UNDERUNDERP summary "Common macro to eliminate prototype compatibility on some compilers"

declaration : macro
	    | type
# TODO: Klaus Berndl <klaus.berndl@sdm.de>: Is the define here
# necessary or even wrong? Is this part not already covered by macro??
	    | define
	    | var-or-fun
	    | extern-c
	    | template
	    | using
	    ;

codeblock : define
	  | codeblock-var-or-fun
	  | type # type is less likely to be used here.
	  ;

extern-c-contents: open-paren
		   ( nil )
		 | bovine-toplevel
		 | close-paren
		   ( nil )
		 ;

extern-c: EXTERN string "\"C\"" semantic-list
	# Extern C commands which contain a list need to have the
	# entries of the list extracted, and spliced into the main
	# list of entries.  This must be done via the function
	# that expands singular nonterminals, such as int x,y;
	  ( extern (EXPANDFULL $3 extern-c-contents) )
	| EXTERN string "\"C\""
	# A plain extern "C" call should add something to the token,
	# but just strip it from the buffer here for now.
	  ( nil )
	;

# Klaus Berndl <klaus.berndl@sdm.de>: At least one-liner should be
# parsed correctly! Multi-line macros (every line ends with a
# backslash) not being one code-block can not be parsed because
# \+newline is flexed as nothing and therefore we can not distinguish
# if the lines > 1 belong to the macro or are separated statements!
# Maybe we need special backslash recognizing and then better
# macro-parsing. For the moment it's goog enough.
macro-expression-list : expression macro-expression-list SEMICOLON
			( nil )
		      | expression
			( nil )
		      ;


macro-def : macro-expression-list
            ( nil )
	  | expression
	    ( nil )
	  | EMPTY 
	  ;

macro : HASH macro-or-include
	( ,$2 )
      ;

macro-or-include : DEFINE symbol opt-define-arglist macro-def
		   ( $2 variable nil $3
			(ASSOC const t)
			nil
			)
		 | INCLUDE system-include
		   ( (substring $2 1 (1- (length $2)))  include t nil )
		 | INCLUDE string
		   ( (read $2) include nil nil )
		 ;

opt-define-arglist : semantic-list
		     ( nil )
		   | EMPTY
		   ;

# This is used in struct parts.
define : HASH DEFINE symbol opt-define-arglist macro-def
	 ( $3 variable nil $4
	      (ASSOC const t)
	      nil
	      )
       ;

# In C++, structures can have the same things as classes.
# So delete this somday in the figure.
#
#structparts : semantic-list
#	      (EXPANDFULL $1 structsubparts)
#	    ;
#
#structsubparts : open-paren "{"
#		 ( nil )
#	       | close-paren "}"
#		 ( nil )
#	       | var-or-fun
#	       | define
#	       # sometimes there are defines in structs.
#	       ;

unionparts : semantic-list
	     (EXPANDFULL $1 classsubparts)
	   ;

opt-symbol : symbol
	   | EMPTY
	   ;

classsubparts : open-paren "{"
		( nil )
	      | close-paren "}"
		( nil )
	      | class-protection opt-symbol COLON
	      # For QT, they may put a `slot' keyword between the protection
	      # and the COLON.
		( ,$1 label )
	      | var-or-fun
	      | type
	      | define	      
		( ,$1 protection )
	      | template
	      | EMPTY
	      ;

opt-class-parents : COLON class-parents opt-template-specifier
		    ( $2 )
		  | EMPTY
		    ( )
		  ;

class-parents : opt-class-protection opt-class-declmods
		namespace-symbol COMA class-parents
		( ,(cons $3 $5 ) )
	      | opt-class-protection opt-class-declmods namespace-symbol
		( ,$3 )
	      ;

opt-class-declmods : class-declmods opt-class-declmods
		     ( nil )
		   | EMPTY
		   ;

class-declmods : VIRTUAL
	       ;

class-protection: PUBLIC
		| PRIVATE
		| PROTECTED
		;

opt-class-protection : class-protection
		       ( ,$1 )
		     | EMPTY
		     ;

namespaceparts : semantic-list
		 (EXPANDFULL $1 namespacesubparts)
	       ;

namespacesubparts : open-paren "{"
		    ( nil )
		  | close-paren "}"
		    ( nil )
		  | type
                  | var-or-fun
		  | define
		  | class-protection COLON
		    ( $1 protection )
		  # In C++, this label in a classsubpart represents
		  # PUBLIC or PRIVATE bits.  Ignore them for now.
		  | template
		  | using
		  | EMPTY
		  ;

enumparts : semantic-list
	    (EXPANDFULL $1 enumsubparts)
	  ;

enumsubparts : symbol opt-assign
	       ( $1 variable "int" ,$2 (ASSOC const t) nil)
	     | open-paren "{"
	       ( nil )
	     | close-paren "}"
	       ( nil )
	     | COMA
	       ( nil )
	     ;

opt-name : symbol
	 | EMPTY
	   ( "" )
         ;

opt-class-declmods : symbol declespec semantic-list
		   | symbol
		   | EMPTY
		   ;

typesimple : struct-or-class opt-name opt-template-specifier
	     opt-class-parents semantic-list
	     ( ,$2 type ,$1 
		   (let ((semantic-c-classname (cons (car ,$2) (car ,$1))))
		       (EXPANDFULL $5 classsubparts))
		   $4
		   (ASSOC 'template-specifier $3)
		   nil )
	   | struct-or-class opt-name opt-template-specifier opt-class-parents
	     ( ,$2 type ,$1 nil $4 
		   (ASSOC 'template-specifier $3)
		    nil )
	   | UNION opt-name unionparts
	     ( ,$2 type $1 $3 nil nil nil )
	   | ENUM opt-name enumparts
	     ( ,$2 type $1 $3 nil nil nil )
# Klaus Berndl <klaus.berndl@sdm.de>: a typedef can be a typeformbase
# with all this declmods stuff.
           | TYPEDEF declmods typeformbase cv-declmods typedef-symbol-list
	   ## We put the type this typedef renames into PARENT
	   ## but will move it in the expand function.
	     ( $5 type $1 nil $3 nil nil )
           ;

typedef-symbol-list : typedefname COMA typedef-symbol-list
		      ( ,(cons $1 $3) )
		    | typedefname
		      ( $1 )
		    ;

# TODO: Klaus Berndl <klaus.berndl@sdm.de>: symbol -> namespace-symbol?!
# Answer: Probably symbol is correct here!
typedefname : opt-stars symbol opt-bits opt-array
	      ( $1 $2 )
	    ;

struct-or-class: STRUCT
	       | CLASS
	       ;

type : typesimple SEMICOLON
       ( ,$1 )
     # named namespaces like "namespace XXX {"
     | NAMESPACE symbol namespaceparts
       ( $2 type $1 $3 nil nil nil )
     # unnamed namespaces like "namespace {"
     | NAMESPACE namespaceparts
       ( "unnamed" type $1 $2 nil nil nil )
     ;

# Klaus Berndl <klaus.berndl@sdm.de>: 
# We must parse "using namespace XXX" too

# Using is vaguely like an include statement in the named portions
# of the code.  We should probably specify a new token type for this.
using : USING typeformbase SEMICOLON
	( nil )
      | USING NAMESPACE typeformbase SEMICOLON
        ( nil )
      ;

template : TEMPLATE template-specifier opt-friend template-definition
	   ( ,(semantic-c-reconstitute-template $4 ,$2) )
	 ;

opt-friend : FRIEND
	   | EMPTY
	   ;

opt-template-specifier : template-specifier
			 ( ,$1 )
		       | EMPTY
			 ()
		       ;

template-specifier : LESS template-specifier-types GREATER
		     ( ,$2 )
		   ;

template-specifier-types : template-var template-specifier-type-list
			   ( ,(cons ,$1 ,$2 ) )
			 | EMPTY
			 ;

template-specifier-type-list : COMA template-specifier-types
			       ( ,$2 )
			     | EMPTY
			       ( )
			     ;

#template-var : template-type opt-stars opt-template-equal
#	       ( ,(cons (concat (car $1) (make-string (car ,$2) ?*))
#			      (cdr $1)))
## Klaus Berndl <klaus.berndl@sdm.de>: for template-types the
## template-var can also be literals or constants.
## Example: map<ClassX, ClassY, 10> map_size10_var; This parses also
## template<class T, 0> which is nonsense but who cares....
#	     | string
#	       ( $1 )
#	     | number
#	       ( $1 )
#	     ;

template-var : 
# Klaus Berndl <klaus.berndl@sdm.de>: The following handles all
# template-vars of template-definitions
	       template-type opt-template-equal
               ( ,(cons (car $1) (cdr $1)) )
# Klaus Berndl <klaus.berndl@sdm.de>: for template-types the
# template-var can also be literals or constants.
# Example: map<ClassX, ClassY, 10> map_size10_var; This parses also
# template<class T, 0> which is nonsense but who cares....
             | string
	       ( $1 )
	     | number
	       ( $1 )
# Klaus Berndl <klaus.berndl@sdm.de>: In template-types arguments can
# be any symbols with optional adress-operator (&) and optional
# dereferencing operator (*)
# Example map<ClassX, ClassY, *size_var_ptr> sized_map_var.
             | opt-stars opt-ref namespace-symbol
	       ( ,$3 )
	     ;

opt-template-equal : EQUAL symbol LESS template-specifier-types GREATER
		     ( $2 )
		   | EMPTY
		   ;

template-type : CLASS symbol
		( $2 type "class" nil nil)
	      | STRUCT symbol
		( $2 type "struct" nil nil)
# TODO: Klaus Berndl <klaus.berndl@sdm.de>: For the moment is is ok,
# that we parse the C++ keyword typename as a class....
	      | TYPENAME symbol
		( $2 type "class" nil nil)
# Klaus Berndl <klaus.berndl@sdm.de>: template-types can be all
# flavors of variable-args but here the argument is ignored, only the
# type stuff is needed.
	      | declmods typeformbase cv-declmods opt-stars
	        opt-ref variablearg-opt-name
	        ( (car $2) type nil nil
		  (ASSOC const (if (member "const" (append $1 $3)) t nil)
			 typemodifiers (delete "const" (append $1 $3))
			 reference (car ,$5)
			 pointer (car $4)
			 )
		  )
	      ;

template-definition : type
		      ( ,$1 )
		    | var-or-fun
		      ( ,$1 )
		    ;

opt-stars :  STAR opt-starmod opt-stars
	    ( (1+ (car $3)) )
	  | EMPTY
	    ( 0 )
          ;

opt-starmod : STARMOD opt-starmod
	      ( ,(cons (,car ,$1) $2) )
	    | EMPTY
	      ()
	    ;

STARMOD : CONST
	;

declmods : DECLMOD declmods
	   ( ,(cons ,(car ,$1) $2 ) )
	 | DECLMOD
	   ( ,$1 )
	 | EMPTY
	   ()
	 ;

DECLMOD : EXTERN
	| STATIC
        | CVDECLMOD
# Klaus Berndl <klaus.berndl@sdm.de>: IMHO signed and unsigned are not
# decl-modes but these are only valid for some buildin-types like
# short, int etc... whereas "real" declmods are valid for all types,
# buildin and user-defined!
#	| SIGNED
#	| UNSIGNED
	| INLINE
	| REGISTER
	| FRIEND
# Klaus Berndl <klaus.berndl@sdm.de>: There can be a few cases where
# TYPENAME is not allowed in C++-syntax but better than not
# recognizing the allowed situations.
        | TYPENAME
	| METADECLMOD
	# This is a hack in case we are in a class.
	| VIRTUAL
	;

metadeclmod : METADECLMOD
	      ()
	    | EMPTY
	      ()
	    ;

CVDECLMOD : CONST
          | VOLATILE
          ;

cv-declmods : CVDECLMOD cv-declmods
	      ( ,(cons ,(car ,$1) $2 ) )
	    | CVDECLMOD
              ( ,$1 )
            | EMPTY
              ()
            ;

METADECLMOD : VIRTUAL
	    | MUTABLE
	    ;

# C++: A type can be modified into a reference by "&"
opt-ref : AMPERSAND
	  ( 1 )
	| EMPTY
	  ( 0 )
	;

typeformbase : typesimple
	       ( ,$1 )
	     | STRUCT symbol
	       ( $2 type $1 )
	     | UNION symbol
	       ( $2 type $1 )
	     | ENUM symbol
	       ( $2 type $1 )
	     | builtintype
	       ( ,$1 )
#	     | symbol template-specifier
#	       ( $1 type "class" )
#	     | namespace-symbol opt-stars opt-template-specifier
#	     | namespace-symbol opt-template-specifier
	     | namespace-symbol
#	       ( ,$1 )
	       ( ,$1 type "class" )
	     | symbol
	       ( $1 )
	     ;

signedmod : UNSIGNED
          | SIGNED
	  ;

# Klaus Berndl <klaus.berndl@sdm.de>: builtintype-types was builtintype
builtintype-types : VOID
                  | CHAR
# Klaus Berndl <klaus.berndl@sdm.de>: Added WCHAR
                  | WCHAR
                  | SHORT
                  | INT
		  | LONG INT
		    ( (concat $1 " " $2) )
                  | FLOAT
                  | DOUBLE
		  | LONG DOUBLE
		    ( (concat $1 " " $2) )
# TODO: Klaus Berndl <klaus.berndl@sdm.de>: Is there a long long, i
# think so?!
		  | LONG LONG
		    ( (concat $1 " " $2) )
                  | LONG
                  ;

builtintype : signedmod builtintype-types
              ( (concat (car $1) " " (car $2)) )
            | builtintype-types
	      ( ,$1 )
# Klaus Berndl <klaus.berndl@sdm.de>: unsigned is synonym for unsigned
# int and signed for signed int. To make this confusing stuff clear we
# add here the int.
	    | signedmod
	    ( (concat (car $1) " int") )
	    ;

# Klaus Berndl <klaus.berndl@sdm.de>: This parses also nonsense like
# "const volatile int const volatile const const volatile a ..." but
# IMHO nobody writes such code. Normaly we shoud define a rule like
# typeformbase-mode which exactly defines the different allowed cases
# and combinations of declmods (minus the CVDECLMOD) typeformbase and
# cv-declmods so we could recognize more invalid code but IMHO this is
# not worth the effort...
codeblock-var-or-fun : declmods typeformbase declmods
		       opt-ref var-or-func-decl
		       ( ,(semantic-c-reconstitute-token ,$5 $1 $2 ) )
		     ;

var-or-fun : codeblock-var-or-fun
	     ( ,$1 )
	   # it is possible for a function to not have a type, and
	   # it is then assumed to be an int.  How annoying.
	   # In C++, this could be a constructor or a destructor.
	   # Even more annoying.  Only ever do this for regular
	   # top-level items.  Ignore this problem in code blocks
	   # so that we don't have to deal with regular code
	   # being erroneously converted into types.
	   | declmods var-or-func-decl
	     ( ,(semantic-c-reconstitute-token ,$2 $1 nil ) )
	   ;

var-or-func-decl : func-decl
		   ( ,$1 )
		 | var-decl
		   ( ,$1 )
		 ;

func-decl : opt-stars opt-class opt-destructor functionname
	    opt-template-specifier
	    opt-under-p 
	    arg-list
	    opt-post-fcn-modifiers
	    opt-throw
	    opt-initializers
	    fun-or-proto-end
	    ( ,$4 'function 
		  ;; Extra stuff goes in here.
		  ;; Continue with the stuff we found in
		  ;; this definition
		  $2 $3 $7 $9 $8 ,$1 ,$11)
	  ;

var-decl :  varnamelist  SEMICOLON
	   ( $1 'variable )
	 ;

opt-under-p : UNDERP
	      (nil)
	    | UNDERUNDERP
	      (nil)
	    | EMPTY
	    ;

# Klaus Berndl <klaus.berndl@sdm.de>: symbol -> namespace-symbol
opt-initializers: COLON namespace-symbol semantic-list opt-initializers
		| COMA namespace-symbol semantic-list opt-initializers
		| EMPTY
		;

opt-post-fcn-modifiers : post-fcn-modifiers opt-post-fcn-modifiers
			 ( ,(cons ,$1 $2) )
		       | EMPTY
			 ( nil )
		       ;

post-fcn-modifiers : REENTRANT
		   | CONST
		   ;

opt-throw : THROW semantic-list
	     ( EXPAND $2 throw-exception-list )
	   | EMPTY
	   ;

# Is this true?  I don't actually know.
throw-exception-list : namespace-symbol COMA throw-exception-list
		       ( ,(cons (car $1) $3) )
		     | namespace-symbol close-paren ")"
		       ( ,$1 )
		     | open-paren "(" throw-exception-list
		       ( ,$2 )
		     | close-paren ")"
		       (  )
		     ;

opt-bits : COLON number
	   ( $2 )
	 | EMPTY
	   ( nil )
	 ;

opt-array : semantic-list "\\[.*\\]$" opt-array
	  # Eventually we want to replace the 1 below with a size
	  # (if available)
	    ( (cons 1 (car ,$2) ) )
	  | EMPTY
	    ( nil )
          ;

opt-assign : EQUAL expression
	     ( $2 )
	   | EMPTY
	     ( nil )
	   ;

opt-restrict : symbol "\\<\\(__\\)?restrict\\>"
	     | EMPTY
	     ;


# Klaus Berndl <klaus.berndl@sdm.de>: symbol -> namespace-symbol?! I
# think so. Can be that then also some invalid C++-syntax is parsed
# but this is better than not parsing valid syntax.
varname : opt-stars opt-restrict namespace-symbol opt-bits opt-array opt-assign
	  ( ,$3 ,$1 ,$4 ,$5 ,$6 )
	;

# I should store more in this def, but leave it simple for now. Klaus
# Berndl <klaus.berndl@sdm.de>: const and volatile can be written
# after the type!
variablearg : declmods typeformbase cv-declmods opt-ref variablearg-opt-name
	      ( (list $5) variable $2 nil
		(ASSOC const (if (member "const" (append $1 $3)) t nil)
		       typemodifiers (delete "const" (append $1 $3))
		       reference (car ,$4)
		       )
		 nil
		 )
	    ;

variablearg-opt-name: varname
		      ( ,$1)
# Klaus Berndl <klaus.berndl@sdm.de>: This allows variableargs without
# a arg-name being parsed correct even if there several pointers (*)
		    | opt-stars
		      ( "" ,$1 nil nil nil )
		    ;

varnamelist : varname COMA varnamelist
	      ( ,(cons $1 $3) )
            | varname
	      ( $1 )
	    ;

# Klaus Berndl <klaus.berndl@sdm.de>: 
# Is necessary to parse stuff like 
#     class list_of_facts : public list<fact>, public entity
# and
#     list <shared_ptr<item> >::const_iterator l;
# Parses also invalid(?) and senseless(?) c++-syntax like
#     symbol<template-spec>::symbol1<template-spec1>::test_iterator
# but better parsing too much than to less
namespace-symbol : symbol opt-template-specifier COLON COLON namespace-symbol
		   ( (concat $1 "::" (car $5)) )
		 | symbol opt-template-specifier
		   ( $1 )
		 ;

#namespace-symbol : symbol COLON COLON namespace-symbol
#		   ( (concat $1 "::" (car $4)) )
#		 | symbol
#		   ( $1 )
#		 ;

namespace-opt-class : symbol COLON COLON namespace-opt-class
		      ( (concat $1 "::" (car $4)) )
# Klaus Berndl <klaus.berndl@sdm.de>: We must recognize
# template-specifiers here so we can parse correctly the
# method-implementations of template-classes outside the
# template-class-declaration
# Example: TemplateClass1<T>::method_1(...)
		    | symbol opt-template-specifier COLON COLON
		      ( $1 )
		    ;

# Klaus Berndl <klaus.berndl@sdm.de>: The opt-class of a func-decl
# must be able to recognize opt-classes with namespaces, e.g.
# Test1::Test2::classname::
opt-class : namespace-opt-class
	    ( ,$1 )
	  | EMPTY
	    ( nil )
	  ;

opt-destructor : TILDE
		 ( t )
	       | EMPTY
		 ( nil )
	       ;

arg-list : semantic-list "^(" knr-arguments
	   ( ,$2 )
	 | semantic-list "^("
	   (EXPANDFULL $1 arg-sub-list)
	 | semantic-list "^(void)$"
	   ( )
	 ;

knr-arguments : variablearg SEMICOLON knr-arguments
		( ,(cons (car (semantic-expand-c-nonterminal ,$1) ) ,$3) )
	      | variablearg SEMICOLON
		( (car (semantic-expand-c-nonterminal ,$1)) )
	      ;

arg-sub-list : variablearg
	       ( ,$1 )
	     | PERIOD PERIOD PERIOD close-paren ")"
	       ( "..." )
	     | COMA
	       ( nil )
	     | open-paren "("
	       ( nil )
	     | close-paren ")"
	       ( nil )
	     ;

operatorsym : LESS LESS
	      ( "<<" )
	    | GREATER GREATER
	      ( ">>" )
	    | EQUAL EQUAL
	      ( "==" )
	    | LESS EQUAL
	      ( "<=" )
	    | GREATER EQUAL
	      ( ">=" )
	    | BANG EQUAL
	      ( "!=" )
	    | MINUS GREATER
	      ( "->" )
# Klaus Berndl <klaus.berndl@sdm.de>: We have to parse also
# operator() and operator[]
            | semantic-list "()"
	      ( "()" )
            | semantic-list "\\[\\]"
	      ( "[]" )
	    | LESS
	    | GREATER
	    | STAR
	    | PLUS
	    | MINUS
	    | DIVIDE
	    | EQUAL
	    | BANG
	    ;

functionname : OPERATOR operatorsym
	       ( ,$2 )
	     | symbol
	       ( $1 )
	     ;

fun-or-proto-end: SEMICOLON
		  ( t )
		| semantic-list
		  ( nil )
		# Here is an anoying feature of C++ pure virtual methods
		| EQUAL number "^0$" SEMICOLON
		  ( 'pure-virtual )
		;

type-cast : semantic-list
	    ( EXPAND $1 type-cast-list )
	  ;

type-cast-list : open-paren typeformbase close-paren
	       ;

# Klaus Berndl <klaus.berndl@sdm.de>: symbol -> namespace-symbol!
function-call: namespace-symbol semantic-list
             ;

string-seq : string string-seq
             ( (concat $1 (car $2)) )
           | string
             ( $1 )
           ;

# Use expression for parsing only.  Don't actually return anything
# for now.  Hopefully we can fix this later.
expression : number
 	     ( (identity start) (identity end) ) 
	   | function-call
	     ( (identity start) (identity end) )
# Klaus Berndl <klaus.berndl@sdm.de>: symbol -> namespace-symbol!
	   | namespace-symbol
	     ( (identity start) (identity end) )
# Klaus Berndl <klaus.berndl@sdm.de>: C/C++ allows sequences of
# strings which are concatenated by the precompiler to one string
	   | string-seq
	     ( (identity start) (identity end))
           | type-cast expression  # A cast to some other type
	     ( (identity start) (identity end) )
	   | semantic-list
	     ( (identity start) (identity end) )
	   | punctuation "[-+*/%^|&]" expression
	     ( (identity start) (identity end) )
	   ;