aboutsummaryrefslogtreecommitdiff
path: root/src/interp/br-op1.boot
blob: 6d3cf5b2f83e9b2e57f86b0b7a7540dab9467045 (plain)
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
-- Copyright (c) 1991-2002, The Numerical Algorithms Group Ltd.
-- All rights reserved.
-- Copyright (C) 2007-2011, Gabriel Dos Reis.
-- All rights reserved.
--
-- Redistribution and use in source and binary forms, with or without
-- modification, are permitted provided that the following conditions are
-- met:
--
--     - Redistributions of source code must retain the above copyright
--       notice, this list of conditions and the following disclaimer.
--
--     - Redistributions in binary form must reproduce the above copyright
--       notice, this list of conditions and the following disclaimer in
--       the documentation and/or other materials provided with the
--       distribution.
--
--     - Neither the name of The Numerical Algorithms Group Ltd. nor the
--       names of its contributors may be used to endorse or promote products
--       derived from this software without specific prior written permission.
--
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
-- IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
-- TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
-- PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
-- OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-- EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-- PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-- LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.


import bc_-util
namespace BOOT

--====================> WAS b-op1.boot <================================

--=======================================================================
--                   Operation Page Menu
--=======================================================================
--opAlist has form [[op,:alist],:.]  where each alist
--        has form [sig,pred,origin,exposeFlag,comments]

dbFromConstructor?(htPage) == htpProperty(htPage,'conform)

dbDoesOneOpHaveParameters? opAlist ==
  or/[(or/[fn for x in items]) for [op,:items] in opAlist] where fn() ==
    string? x => dbPart(x,2,1) ~= '"0"
    KAR x
--============================================================================
--               Master Switch Functions for Operation Views
--============================================================================

dbShowOps(htPage,which,key,:options) ==
  --NEXT LINE SHOULD BE REMOVED if we are sure that which is a string
  which := STRINGIMAGE which
  if key in '(extended basic all) then
    $groupChoice := key
    key := htpProperty(htPage,'key) or 'names
  opAlist  :=
    which = '"operation" => htpProperty(htPage,'opAlist)
--      al := reduceByGroup(htPage,htpProperty(htPage,'principalOpAlist))
--      htpSetProperty(htPage,'opAlist,al)
--      al
    htpProperty(htPage,'attrAlist)
  key = 'generalise =>
    arg  := STRINGIMAGE CAAR opAlist
    which = '"attribute" => aPage arg
    oPage arg
  key = 'allDomains => dbShowOpAllDomains(htPage,opAlist,which)
  key = 'filter =>
    --if $saturn, IFCAR options contains filter string
    filter := IFCAR options or pmTransFilter(dbGetInputString htPage)
    filter is ['error,:.] => bcErrorPage filter
    opAlist:= [x for x in opAlist | superMatch?(filter,DOWNCASE STRINGIMAGE opOf x)]
    null opAlist => emptySearchPage(which,filter)
    htPage := htInitPageNoScroll(htCopyProplist htPage)
    if which = '"operation"
      then htpSetProperty(htPage,'opAlist,opAlist)
      else htpSetProperty(htPage,'attrAlist,opAlist)
    if not htpProperty(htPage,'condition?) = 'no then
      dbResetOpAlistCondition(htPage,which,opAlist)
    dbShowOps(htPage,which,htpProperty(htPage,'exclusion))
  htpSetProperty(htPage,'key,key)
  if key in '(exposureOn exposureOff) then
    $exposedOnlyIfTrue :=
       key = 'exposureOn => 'T
       nil
    key := htpProperty(htPage,'exclusion)
  dbShowOp1(htPage,opAlist,which,key)

reduceByGroup(htPage,opAlist) ==
  not dbFromConstructor?(htPage) or null $groupChoice => opAlist
  dbExpandOpAlistIfNecessary(htPage,opAlist,'"operation",true,false)
  bitNumber := HGET($topicHash,$groupChoice)
  res := [[op,:newItems] for [op,:items] in opAlist | newItems] where
    newItems() ==
      null bitNumber => items
      [x for x in items | integer? (code := myLastAtom x) and LOGBITP(bitNumber,code)]
  res


dbShowOp1(htPage,opAlist,which,key) ==
  --set up for filtering below in dbGatherData
  $which: local := which
  if integer? key then
    opAlist := dbSelectData(htPage,opAlist,key)
    ------> Jump out for constructor names in file <--------
  integer? key and opAlist is [[con,:.]] and htpProperty(htPage,'isFile)
      and constructor? con => return conPageChoose con
  if integer? key then
    htPage := htInitPageNoScroll(htCopyProplist htPage)
    if which = '"operation"
      then htpSetProperty(htPage,'opAlist,opAlist)
      else htpSetProperty(htPage,'attrAlist,opAlist)
    if not htpProperty(htPage,'condition?) = 'no then
      dbResetOpAlistCondition(htPage,which,opAlist)
  dbExpandOpAlistIfNecessary(htPage,opAlist,which,true,false)
  if $exposedOnlyIfTrue and not dbFromConstructor?(htPage) then
  --opAlist is expanded to form [[op,[sig,pred,origin,exposed,comments],...],...]
    opAlist:=[item for [op,:items] in opAlist | item] where
      item() ==
        acc := nil
        for x in items | x.3 repeat acc:= [x,:acc]
        null acc => nil
        [op,:nreverse acc]
  $conformsAreDomains : local := htpProperty(htPage,'domname)
  opCount := opAlistCount(opAlist, which)
  branch :=
    integer? key =>
      opCount <= $opDescriptionThreshold => 'documentation
      'names
    key = 'names and null rest opAlist =>      --means a single op
      opCount <= $opDescriptionThreshold => 'documentation
      'names
    key
  [what,whats,fn] := LASSOC(branch,$OpViewTable)
  data := dbGatherData(htPage,opAlist,which,branch)
  dataCount := +/[1 for x in data | (what = '"Name" and $exposedOnlyIfTrue => atom x; true)]
  namedPart :=
    null rest opAlist =>
      ops := escapeSpecialChars STRINGIMAGE CAAR opAlist
      ['" {\em ",ops,'"}"]
    nil
  if what = '"Condition" and null KAR KAR data then dataCount := dataCount - 1
  exposurePart :=
    $exposedOnlyIfTrue => '(" Exposed ")
    nil
  firstPart :=
    opCount = 0 => ['"No ",:exposurePart, pluralize capitalize which]
    dataCount = 1 or dataCount = opCount =>
      opCount = 1 => [:exposurePart, capitalize which,:namedPart]
      [STRINGIMAGE opCount,'" ",:exposurePart,
         pluralize capitalize which,:namedPart]
    prefix := pluralSay(dataCount,what,whats)
    [:prefix,'" for ",STRINGIMAGE opCount,'" ",pluralize capitalize which,:namedPart]
  page := htInitPageNoScroll(htCopyProplist htPage)
  ------------>above line used to call htInitPageHoHeading<----------
  htAddHeading dbShowOpHeading([:firstPart,:fromHeading page], branch)
  htpSetProperty(page,'data,data)
  htpSetProperty(page,'branch,branch)
  -- the only place where specialMessage property is set seems to be commented. out
  if u := htpProperty(page,'specialMessage) then apply(first u,rest u)
  htSayStandard('"\beginscroll ")
  FUNCALL(fn,page,opAlist,which,data) --apply branch function
  dbOpsExposureMessage()
  htSayStandard("\endscroll ")
  dbPresentOps(page,which,branch)
  htShowPageNoScroll()

opAlistCount(opAlist, which) == +/[foo for [op,:items] in opAlist] where foo() ==
  null $exposedOnlyIfTrue or which = '"attribute" => #items
  --count if unexpanded---CDDR(w) = nil---or if w.3 = true
  +/[1 for w in items | null (p := CDDR w) or p . 1]

dbShowOpHeading(heading, branch) ==
  suffix :=
--  branch = 'signatures => '" viewed as signatures"
    branch = 'parameters => '" viewed with parameters"
    branch = 'origins    => '" organized by origins"
    branch = 'conditions => '" organized by conditions"
    '""
  [:heading, suffix]

dbOpsExposureMessage() ==
  $atLeastOneUnexposed => htSay '"{\em *} = unexposed"

fromHeading htPage ==
  null htPage => '""
  $pn := [htPage.0,'"}{"]
  updomain := htpProperty(htPage,'updomain) =>
    dnForm  := dbExtractUnderlyingDomain updomain
    dnString:= form2StringList dnForm
    dnFence := form2Fence  dnForm
--  upString:= form2StringList updomain
    upFence := form2Fence  updomain
    upOp    := PNAME opOf  updomain
    ['" {\em from} ",:dbConformGen dnForm,'" {\em under} \ops{",upOp,'"}{",:$pn,:upFence,'"}"]
  domname  := htpProperty(htPage,'domname)
  numberOfUnderlyingDomains := #[x for x in rest getDualSignatureFromDB(opOf domname) | x]
--  numberOfUnderlyingDomains = 1 and
--    KDR domname and (dn := dbExtractUnderlyingDomain domname) =>
--      ['" {\em from} ",:pickitForm(domname,dn)]
  KDR domname => ['" {\em from} ",:dbConformGen domname]
  htpProperty(htPage,'fromHeading)

pickitForm(form,uarg) ==
  conform2StringList(form,FUNCTION dbConform,FUNCTION conformString,uarg)

conformString(form) ==
  KDR form =>
    conform2StringList(form,FUNCTION conname2StringList,FUNCTION conformString,nil)
  form2StringList form

conform2StringList(form,opFn,argFn,exception) ==
  exception := exception or '"%%%nothing%%%"
  [op1,:args] := form
  op := IFCAR HGET($lowerCaseConTb,op1) or op1
  null args => apply(opFn,[op])
  special := op in '(Union Record Mapping)
  cosig :=
    special => ['T for x in args]
    rest getDualSignatureFromDB op
  atypes :=
    special => cosig
    rest CDAR getConstructorModemapFromDB op
  sargl := [fn for x in args for atype in atypes for pred in cosig] where fn() ==
    keyword :=
      x is [":",y,t] =>
        x := t
        y
      nil
    res :=
      x = exception => dbOpsForm exception
      pred =>
        string? x => [x]
        u := apply(argFn,[x])
        atom u and [u] or u
      typ := sublisFormal(args,atype)
      if x is ['QUOTE,a] then x := a
      u := mathform2HtString algCoerceInteractive(x,typ,'(OutputForm)) => [u]
      integer? x or string? x => [x]
      systemError()
    keyword => [keyword,'": ",:res]
    res
  op = 'Mapping => dbMapping2StringList sargl
  head :=
    special => [op]
    apply(opFn,[form])
  [:head,'"(",:first sargl,:"append"/[[",",:y] for y in rest sargl],'")"]


dbMapping2StringList [target,:sl] ==
  null sl => target
  restPart :=
    null rest sl => nil
    "append"/[[",",:y] for y in rest sl]
  sourcePart :=
    restPart => ['"(",:first sl,:restPart,'")"]
    first sl
  [:sourcePart,'" -> ",:target]

dbOuttran form ==
  if LISTP form then
    [op,:args] := form
  else
    op := form
    args := nil
  cosig := rest getDualSignatureFromDB op
  atypes := rest CDAR getConstructorModemapFromDB op
  argl := [fn for x in args for atype in atypes for pred in cosig] where fn() ==
    pred => x
    typ := sublisFormal(args,atype)
    arg :=
      x is ['QUOTE,a] => a
      x
    res := mathform2HtString algCoerceInteractive(arg,typ,'(OutputForm))
    integer? res or string? res => res
    ['QUOTE,res]
  [op,:argl]

dbOpsForm form ==
--one button for the operations of a type
--1st arg: like "Matrix(Integer)" or "UP('x,Integer)" <---all highlighted
--2nd arg: like (|Matrix| (|Integer|)) and (|U..P..| (QUOTE |x|) (|Integer|))
  ["\ops{",:conform2StringList(form,FUNCTION conname2StringList,FUNCTION conformString,nil),'"}{",:$pn,:form2Fence form,'"}"]

dbConformGen form == dbConformGen1(form,true)
--many buttons: one for the type and one for each inner type
--NOTE: must only be called on types KNOWN to be correct

dbConformGenUnder form == dbConformGen1(form,false)
--same as above, except buttons only for the inner types

dbConformGen1(form,opButton?) ==
  opFunction :=
    opButton? => FUNCTION dbConform
    FUNCTION conname2StringList
  originalOp := opOf form
  op := unAbbreviateIfNecessary opOf form
  args := IFCDR form
  form :=
    originalOp=op => form
    [op, :args]
  args => conform2StringList(form, opFunction,FUNCTION dbConformGen,nil)
  apply(opFunction,[form])

unAbbreviateIfNecessary op == IFCAR HGET($lowerCaseConTb, op) or op

conname2StringList form == [PNAME unAbbreviateIfNecessary opOf form]

--===========================================================================
--               Data Gathering Code
--============================================================================
dbGatherData(htPage,opAlist,which,key) ==
  key = 'implementation => dbGatherDataImplementation(htPage,opAlist)
  dataFunction := LASSOC(key,table) where
    table() ==
      $dbDataFunctionAlist or
        ($dbDataFunctionAlist := [
          ['signatures,:function dbMakeSignature],
            ['parameters,:function dbContrivedForm],
              ['origins,:function dbGetOrigin],
                ['domains,:function dbGetOrigin],
                  ['conditions,:function dbGetCondition]])
  null dataFunction =>
    --key= names or filter or documentation; do not expand
    if $exposedOnlyIfTrue and not dbFromConstructor?(htPage) then
      opAlist := --to get indexing correct
         which = '"operation" => htpProperty(htPage,'opAlist)
         htpProperty(htPage,'attrAlist)
    acc := nil
    initialExposure :=
      htPage and htpProperty(htPage,'conform) and which ~= '"package operation"
        => true
      --never star ops from a constructor
      nil
    for [op,:alist] in opAlist repeat
      exposureFlag := initialExposure
      while alist repeat
        item := first alist
        isExposed? :=
          string? item => dbExposed?(item,char 'o)   --unexpanded case
          null (r := rest rest item) => true      --assume true if unexpanded
          r . 1                                   --expanded case
        if isExposed? then return (exposureFlag := true)
        alist := rest alist
      node :=
        exposureFlag => op
        [op,nil]
      acc := [node,:acc]
    nreverse acc
  data := nil
  dbExpandOpAlistIfNecessary(htPage,opAlist,which,key in '(origins documentation),false)
  --create data, a list of the form ((entry,exposeFlag,:entries)...)
  for [op,:alist] in opAlist repeat
    for item in alist repeat
      entry := FUNCALL(dataFunction,op,item)--get key item
      exposeFlag :=                         --is the current op-sig exposed?
        null (r := rest rest item) => true  --not given, assume yes
        r . 1                               --is  given, use value
      tail :=
        item is [.,'ASCONST,:.] => 'ASCONST
        nil
      newEntry :=
        u := assoc(entry,data) =>           --key seen before? look on DATA
          u.rest.first := second u or exposeFlag --yes, expose if any 1 is exposed
          u
        data := [y := [entry,exposeFlag,:tail],:data]
        y                                   --no, create new entry in DATA
      if key in '(origins conditions) then
        r := CDDR newEntry
        if atom r then r := nil             --clear out possible 'ASCONST
        newEntry.rest.rest :=               --store op/sigs under key if needed
          insert([dbMakeSignature(op,item),exposeFlag,:tail],r)
  if key in '(origins conditions) then
    for entry in data repeat   --sort list of entries (after the 2nd)
      tail := CDDR entry
      tail :=
        atom tail => tail
        listSort(function LEXLESSEQP,tail)
      entry.rest.rest := tail
  data := listSort(function LEXLESSEQP,data)
  data

dbGatherDataImplementation(htPage,opAlist) ==
--returns data, of form ((implementor exposed? entry entry...)...
--  where entry has form ((op sig . implementor) . stuff)
  conform := htpProperty(htPage,'conform)
  domainForm  := htpProperty(htPage,'domname)
  dom     := eval domainForm
  which   := '"operation"
  [nam,:$domainArgs] := domainForm
  $predicateList: local := getConstructorPredicatesFromDB nam
  predVector := dom.3
  u := getDomainOpTable(dom,true,ASSOCLEFT opAlist)
  --u has form ((op,sig,:implementor)...)
  --sort into 4 groups: domain exports, unexports, default exports, others

  for (x := [.,.,:key]) in u for i in 0.. repeat
    key = domainForm => domexports := [x,:domexports]
    integer? key => unexports := [x,:unexports]
    isDefaultPackageForm? key => defexports := [x,:defexports]
    key = 'nowhere => nowheres := [x,:nowheres]
    key = 'constant =>constants := [x,:constants]
    others := [x,:others]   --add chain domains go here
  fn [nowheres,constants,domexports,SORTBY('CDDR,nreverse others),SORTBY('CDDR,
               nreverse defexports),SORTBY('CDDR,nreverse unexports)] where
    fn l ==
      alist := nil
      for u in l repeat
        while u repeat
          key := CDDAR u  --implementor
          entries :=
            [[first u,true],:[u and [first u,true] while key = CDDAR (u := rest u)]]
          alist := [[key,gn key,:entries],:alist]
      nreverse alist
    gn key ==
      atom key => true
      isExposedConstructor first key

dbSelectData(htPage,opAlist,key) ==
  branch := htpProperty(htPage,'branch)
  data   := htpProperty(htPage,'data)
  branch in '(signatures parameters) =>
    dbReduceOpAlist(opAlist,data.key,branch)
  branch in '(origins conditions implementation) =>
    key < 8192 => dbReduceOpAlist(opAlist,data.key,branch)
    [newkey,binkey] := DIVIDE(key,8192)  --newkey is 1 too large
    innerData := CDDR data.(newkey - 1)
    dbReduceOpAlist(opAlist,innerData.binkey,'signatures)
  [opAlist . key]

dbReduceOpAlist(opAlist,data,branch) ==
  branch = 'signatures => dbReduceBySignature(opAlist,CAAR data,CADAR data)
  branch = 'origins => dbReduceBySelection(opAlist,first data,function third)
  branch = 'conditions => dbReduceBySelection(opAlist,first data,function second)
  branch = 'implementation => dbReduceByOpSignature(opAlist,CDDR data)
  branch = 'parameters => dbReduceByForm(opAlist,first data)
  systemError ['"Unexpected branch: ",branch]

dbReduceByOpSignature(opAlist,datalist) ==
--reduces opAlist by implementation datalist, one of the form
--    (((op,sig,:implementor),:stuff),...)
  ops := [CAAR x for x in datalist] --x is [[op,sig,:implementor],:.]
  acc := nil
  for [op,:alist] in opAlist | MEMQ(op,ops) repeat
    entryList := [entry for (entry := [sig,:.]) in alist | test] where test() ==
      or/[x for x in datalist | x is [[=op,=sig,:.],:.]]
    entryList => acc := [[op,:nreverse entryList],:acc]
  nreverse acc

dbReduceBySignature(opAlist,op,sig) ==
--reduces opAlist to one with a fixed op and sig
  [[op,:[x for x in LASSOC(op,opAlist) | x is [=sig,:.]]]]

dbReduceByForm(opAlist,form) ==
  acc := nil
  for [op,:alist] in opAlist repeat
    items := [x for x in alist | dbContrivedForm(op,x) = form] =>
      acc := [[op,:items],:acc]
  nreverse acc

dbReduceBySelection(opAlist,key,fn) ==
  acc := nil
  for [op,:alist] in opAlist repeat
    items := [x for x in alist | FUNCALL(fn,x) = key] =>
      acc := [[op,:items],:acc]
  nreverse acc

dbContrivedForm(op,[sig,:.]) ==
  $which = '"attribute" => [op,sig]
  dbMakeContrivedForm(op,sig)

dbMakeSignature(op,[sig,:.]) == [op,sig]  --getDomainOpTable format

dbGetOrigin(op,[.,.,origin,:.]) == origin

dbGetCondition(op,[.,pred,:.]) == pred

--dbInsertOpAlist(op,item,opAlist) ==
--  insertAlist(op,[item,:LASSOC(op,opAlist)],opAlist)

--dbSortOpAlist opAlist ==
--  [[op,:listSort(function LEXLESSEQP,alist)]
--    for [op,:alist] in listSort(function LEXLESSEQP,opAlist)]

--============================================================================
--               Branches of Views
--============================================================================
dbShowOpNames(htPage,opAlist,which,data) ==
  single? := opAlist and null rest data
  single? =>
    ops := escapeSpecialChars STRINGIMAGE CAAR opAlist
    htSayStandard('"Select a view below")
    htSaySaturn '"Select a view with the right mouse button"
  exposedOnly? := $exposedOnlyIfTrue and not dbFromConstructor?(htPage)
  dbShowOpItems(which,data,exposedOnly?)

dbShowOpItems(which,data,exposedOnly?) ==
  htBeginTable()
  firstTime := true
  for i in 0.. for item in data repeat
    if firstTime then firstTime := false
    else htSaySaturn '"&"
    if atom item then
      op := item
      exposeFlag := true
    else
      [op,exposeFlag] := item
    ops := escapeSpecialChars STRINGIMAGE op
    exposeFlag or not exposedOnly? =>
      htSay('"{")
      bcStarSpaceOp(ops,exposeFlag)
      htMakePage [['bcLinks,[ops,'"",'dbShowOps,which,i]]]
      htSay('"}")
  htEndTable()

dbShowOpAllDomains(htPage,opAlist,which) ==
  dbExpandOpAlistIfNecessary(htPage,opAlist,which,true,false)
  catOriginAlist := nil --list of category origins
  domOriginAlist := nil --list of domain origins
  for [op,:items] in opAlist repeat
    for [.,predicate,origin,:.] in items repeat
      conname := first origin
      getConstructorKindFromDB conname = "category" =>
        pred := simpOrDumb(predicate,LASSQ(conname,catOriginAlist) or true)
        catOriginAlist := insertAlist(conname,pred,catOriginAlist)
      pred := simpOrDumb(predicate,LASSQ(conname,domOriginAlist) or true)
      domOriginAlist := insertAlist(conname,pred,domOriginAlist)
  --the following is similar to "domainsOf" but do not sort immediately
  u := [COPY key for key in HKEYS _*HASCATEGORY_-HASH_*
          | LASSQ(rest key,catOriginAlist)]
  for pair in u repeat
    [dom,:cat] := pair
    LASSQ(cat,catOriginAlist) = 'etc => pair.rest := 'etc
    pair.rest := simpOrDumb(constructorHasCategoryFromDB pair,true)
  --now add all of the domains
  for [dom,:pred] in domOriginAlist repeat
    u := insertAlist(dom,simpOrDumb(pred,LASSQ(dom,u) or true),u)
  cAlist := listSort(function GLESSEQP,u)
  for pair in cAlist repeat 
    pair.first := getConstructorForm first pair
  htpSetProperty(htPage,'cAlist,cAlist)
  htpSetProperty(htPage,'thing,'"constructor")
  htpSetProperty(htPage,'specialHeading,'"hoho")
  dbShowCons(htPage,'names)

simpOrDumb(new,old) ==
  new = 'etc => 'etc
  atom new => old
  'etc

dbShowOpOrigins(htPage,opAlist,which,data) ==
  dbGatherThenShow(htPage,opAlist,which,data,true,'"from",function bcStarConform)

dbShowOpImplementations(htPage,opAlist,which,data) ==
  dbGatherThenShow(htPage,opAlist,which,data,true,'"by",function bcStarConform)

dbShowOpConditions(htPage,opAlist,which,data) ==
  dbGatherThenShow(htPage,opAlist,which,data,nil,nil,function bcPred)

dbShowKind conform ==
  conname := first conform
  kind := getConstructorKindFromDB conname
  kind = "domain" =>
    (s := PNAME conname).(MAXINDEX s) = '_& => '"default package"
    '"domain"
  PNAME kind

dbShowOpSignatures(htPage,opAlist,which,data) == dbShowOpSigList(which,data,0)

dbShowOpSigList(which,dataItems,count) ==
--dataItems is (((op,sig,:.),exposureFlag,...)
  single? := null rest dataItems
  htBeginTable()
  firstTime := true
  for [[op,sig,:.],exposureFlag,:tail] in dataItems repeat
    if firstTime then firstTime := false
    else htSaySaturn '"&";
    ops := escapeSpecialChars STRINGIMAGE op
    htSay '"{"
--  if single? then htSay('"{\em ",ops,'"}") else.....
    htSayExpose(ops,exposureFlag)
    htMakePage [['bcLinks,[ops,'"",'dbShowOps,which,count]]]
    if which = '"attribute" then htSay args2HtString (sig and [sig]) else
      htSay '": "
      tail = 'ASCONST => bcConform first sig
      bcConform ['Mapping,:sig]
    htSay '"}"
    count := count + 1
  htEndTable()
  count

dbShowOpParameters(htPage,opAlist,which,data) ==
  single? := null rest data
  count := 0
  htBeginTable()
  firstTime := true
  for item in data repeat
    if firstTime then firstTime := false
    else htSaySaturn '"&"
    [opform,exposeFlag,:tail] := item
    op := intern IFCAR opform
    args := IFCDR opform
    ops := escapeSpecialChars STRINGIMAGE op
    htSay '"{"
    htSayExpose(ops,exposeFlag)
    n := #opform
    do
      n = 2 and LASSOC('Nud,PROPLIST op) =>
        dbShowOpParameterJump(ops,which,count,single?)
        htSay('" {\em ",KAR args,'"}")
      n = 3 and LASSOC('Led,PROPLIST op) =>
        htSay('"{\em ",KAR args,'"} ")
        dbShowOpParameterJump(ops,which,count,single?)
        htSay('" {\em ",KAR KDR args,'"}")
      dbShowOpParameterJump(ops,which,count,single?)
      tail = 'ASCONST or op in '(0 1) or which = '"attribute" and null IFCAR args => 'skip
      htSay('"(")
      if IFCAR args then htSay('"{\em ",IFCAR args,'"}")
      for x in IFCDR args repeat
        htSay('",{\em ",x,'"}")
      htSay('")")
    htSay '"}"
    count := count + 1
  htEndTable()

dbShowOpParameterJump(ops,which,count,single?) ==
  single? => htSay('"{\em ",ops,'"}")
  htMakePage [['bcLinks,[ops,'"",'dbShowOps,which,count]]]

dbShowOpDocumentation(htPage,opAlist,which,data) ==
  if $exposedOnlyIfTrue and not dbFromConstructor?(htPage) then
    opAlist :=
      which = '"operation" => htpProperty(htPage,'opAlist)
      htpProperty(htPage,'attrAlist)
    --NOTE: this line is necessary to get indexing right.
    --The test below for $exposedOnlyIfTrue causes unexposed items
    --to be skipped.
  newWhich :=
    conform := htpProperty(htPage,'domname) or htpProperty(htPage,'conform)
    which = '"package operation" => '"operation"
    which
  expand := dbExpandOpAlistIfNecessary(htPage,opAlist,which,true,false)
  if expand then
    condata := dbGatherData(htPage,opAlist,which,'conditions)
    htpSetProperty(htPage,'conditionData,condata)
  base := -8192
  exactlyOneOpSig := opAlist is [[.,.]] --checked by displayDomainOp
  htSaySaturn '"\begin{description}"
  for [op,:alist] in opAlist repeat
    base := 8192 + base
    for item in alist for j in 0.. repeat
      [sig,predicate,origin,exposeFlag,comments] := item
      exposeFlag or not $exposedOnlyIfTrue =>
        if comments ~= '"" and string? comments and (k := string2Integer comments) then
          comments :=
            k in '(0 1) => '""
            dbReadComments k
          tail := CDDDDR item
          tail.first := comments
        doc := (string? comments and comments ~= '"" => comments; nil)
        pred := predicate or true
        index := (exactlyOneOpSig => nil; base + j)
        if which = '"package operation" then
          sig    := substitute(conform,'_$,sig)
          origin := substitute(conform,'_$,origin)
        displayDomainOp(htPage,newWhich,origin,op,sig,pred,doc,index,'dbChooseDomainOp,null exposeFlag,true)
  htSaySaturn '"\end{description}"

dbChooseDomainOp(htPage,which,index) ==
  [opKey,entryKey] := DIVIDE(index,8192)
  opAlist :=
    which = '"operation" => htpProperty(htPage,'opAlist)
    htpProperty(htPage,'attrAlist)
  [op,:entries] := opAlist . opKey
  entry := entries . entryKey
  htPage := htInitPageNoScroll(htCopyProplist htPage)
  if which = '"operation"
    then htpSetProperty(htPage,'opAlist,[[op,entry]])
    else htpSetProperty(htPage,'attrAlist,[[op,entry]])
  if not htpProperty(htPage,'condition?) = 'no then
    dbResetOpAlistCondition(htPage,which,opAlist)
  dbShowOps(htPage,which,'documentation)

htSayExpose(op,flag) ==
  $includeUnexposed? =>
    flag => htBlank()
    op.0 = char '_* => htSay '"{\em *} "
    htSayUnexposed()
  htSay '""
--============================================================================
--               Branch-in From Other Places
--============================================================================
dbShowOperationsFromConform(htPage,which,opAlist) ==  --branch in with lists
  $groupChoice := nil
  conform := htpProperty(htPage,'conform)
  if domform := htpProperty(htPage,'domname) then
    $conformsAreDomains : local := true
    reduceOpAlistForDomain(opAlist,domform,conform)
  conform := domform or conform
  kind := capitalize htpProperty(htPage,'kind)
  exposePart :=
    isExposedConstructor opOf conform => '""
    '" Unexposed "
  fromPart :=
    domform => evalableConstructor2HtString domform
    form2HtString conform
  heading :=
    ['" from ",exposePart,kind,'" {\em ",fromPart,'"}"]
  expandProperty :=
    which = '"operation" => 'expandOperations
    'expandAttributes
  htpSetProperty(htPage,expandProperty,'lists)
  htpSetProperty(htPage,'fromHeading,heading)
  reducedOpAlist :=
    which = '"operation" =>  reduceByGroup(htPage,opAlist)
    opAlist
  if which = '"operation"
    then
      htpSetProperty(htPage,'principalOpAlist,opAlist)
      htpSetProperty(htPage,'opAlist,reducedOpAlist)
    else htpSetProperty(htPage,'attrAlist,opAlist)
  if domform
   then htpSetProperty(htPage,'condition?,'no)
   else dbResetOpAlistCondition(htPage,which,opAlist)
  dbShowOp1(htPage,reducedOpAlist,which,'names)

reduceOpAlistForDomain(opAlist,domform,conform) ==
--destructively simplify all predicates; filter out any that fail
  form1 := [domform,:rest domform]
  form2 := ['$,:rest conform]
  for pair in opAlist repeat
    pair.rest := [test for item in rest pair | test] where test() ==
      [head,:tail] := item
      first tail = true => item
      pred := simpHasPred SUBLISLIS(form1,form2,first tail)
      null pred => false
      item.rest := [pred]
      item
  opAlist

$attributeArgs := nil

dbShowOperationLines(which,linelist) ==  --branch in with lines
  htPage := htInitPage(nil,nil)  --create empty page
  opAlist := nil
  lines := linelist
  while lines repeat
    name := dbName (x := first lines)
    pile := [x]
    while (lines := rest lines) and name = dbName (x := first lines) repeat
      pile := [x,:pile]
    opAlist := [[name,:nreverse pile],:opAlist]
  opAlist := listSort(function LEXLESSEQP,nreverse opAlist)
  if which = '"operation"
    then htpSetProperty(htPage,'opAlist,opAlist)
    else htpSetProperty(htPage,'attrAlist,opAlist)
  expandProperty :=
    which = '"operation" => 'expandOperations
    'expandAttributes
  htpSetProperty(htPage,expandProperty,'strings)
  dbResetOpAlistCondition(htPage,which,opAlist)
  if which = '"attribute" and $attributeArgs then
    --code needed to handle commutative("*"); called from aPage
    --must completely expand the opAlist then check for those with
    --arguments equal to $attributeArgs
    --here: opAlist is [[op,:itemlist]]
    dbExpandOpAlistIfNecessary(htPage,opAlist,which,false,false)
    opAlist := [[CAAR opAlist,:[item for item in CDAR opAlist | first item = $attributeArgs]]]
  dbShowOp1(htPage,opAlist,which,'names)

--============================================================================
--                Code to Expand opAlist
--============================================================================
dbResetOpAlistCondition(htPage,which,opAlist) ==
  value := dbExpandOpAlistIfNecessary(htPage,opAlist,which,false,true)
  htpSetProperty(htPage,'condition?,(value => 'yes; 'no))
  value

dbSetOpAlistCondition(htPage,opAlist,which) ==
--called whenever a new opAlist is needed
--property can only be inherited if 'no (a subset says NO if whole says NO)
  condition := htpProperty(htPage,'condition?)
  condition in '(yes no) => condition = 'yes
  value := dbExpandOpAlistIfNecessary(htPage,opAlist,which,false,true)
  htpSetProperty(htPage,'condition?,(value => 'yes; 'no))
  value

dbExpandOpAlistIfNecessary(htPage,opAlist,which,needOrigins?,condition?) ==
--if condition? = true, stop when you find a non-trivial predicate
--otherwise, expand in full
--RETURNS:
--  non-trivial predicate, if condition? = true and it finds one
--  nil,                   otherwise
--SIDE-EFFECT: this function references the "expand" property (set elsewhere):
--  'strings, if not fully expanded and it contains strings
--            i.e. opAlist is ((op . (string ...))...) if unexpanded
--  'lists,   if not fully expanded and it contains lists
--            i.e. opAlist is ((op . ((sig pred) ...))...) if unexpanded
    condition? := condition? and not $exposedOnlyIfTrue
    value      := nil  --return value
    expandProperty :=
      which = '"operation" => 'expandOperations
      'expandAttributes
    expandFlag := htpProperty(htPage,expandProperty)
    expandFlag = 'fullyExpanded => nil
    expandFlag = 'strings => --strings are partially expanded
      for pair in opAlist repeat
        [op,:lines] := pair
        acc := nil
        for line in lines repeat
        --NOTE: we must expand all lines here for a given op
        --      since below we will change opAlist
        --Case 1: Already expanded; just cons it onto ACC
          null string? line => --already expanded
            if condition? then --this could have been expanded at a lower level
              if cons? (pred := second line) then value := pred
            acc := [line,:acc] --this one is already expanded; record it anyway
        --Case 2: unexpanded; expand it then cons it onto ACC
          [name,nargs,xflag,sigs,conname,pred,comments] := dbParts(line,7,1)
          predicate := ncParseFromString pred
          if condition? and cons? predicate then value := predicate
          sig := ncParseFromString sigs --is (Mapping,:.)
          if which = '"operation" then
            if sig isnt ['Mapping,:.]
            then sayBrightly ['"Unexpected signature for ",name,'": ",sigs]
            else sig := rest sig
          conname := intern dbNewConname line
          origin := [conname,:getConstructorArgs conname]
          exposeFlag := dbExposed?(line,char 'o)
          acc := [[sig,predicate,origin,exposeFlag,comments],:acc]
        --always store the fruits of our labor:
        pair.rest := nreverse acc             --at least partially expand it
        condition? and value => return value  --early exit
      value => value
      condition? => nil
      htpSetProperty(htPage,expandProperty,'fullyExpanded)
    expandFlag = 'lists => --lists are partially expanded
      -- entry is [sig, predicate, origin, exposeFlag, comments]
      $value: local := nil
      $docTableHash := hashTable 'EQUAL
      packageSymbol := false
      domform := htpProperty(htPage,'domname) or htpProperty(htPage,'conform)
      if isDefaultPackageName opOf domform then
         catname := intern subString(s := PNAME opOf domform,0,MAXINDEX s)
         packageSymbol := second domform
         domform := [catname,:rest rest domform]  --skip first argument ($)
      docTable:= dbDocTable domform
      for [op,:alist] in opAlist repeat
        for [sig,:tail] in alist repeat
          condition? => --the only purpose here is to find a non-trivial pred
            cons? (pred := first tail) => return ($value := pred)
            'skip
          u :=
            tail is [.,origin,:.] and origin =>
--  must change any % into $ otherwise we will not pick up comments properly
--  delete the SUBLISLIS when we fix on % or $ 
              dbGetDocTable(op,SUBLISLIS(['$],['%],sig),dbDocTable origin,which,nil)
            if packageSymbol then sig := substitute('_$,packageSymbol,sig)
            dbGetDocTable(op,sig,docTable,which,nil)
          origin := IFCAR u or origin
          docCode := IFCDR u   --> (doc . code)
--        if not integer? rest docCode then harhar(op) -->
          if null doc and which = '"attribute" then doc := getRegistry(op,sig)
          tail.rest := [origin,isExposedConstructor opOf origin,:docCode]
        $value => return $value
      $value => $value
      condition? => nil
      htpSetProperty(htPage,expandProperty,'fullyExpanded)
    'done

getRegistry(op,sig) ==
  u := getConstructorDocumentationFromDB "AttributeRegistry"
  v := LASSOC(op,u)
  match := or/[y for y in v | y is [['attribute,: =sig],:.]] => second match
  '""

evalableConstructor2HtString domform ==
  if vector? domform then domform := devaluate domform
  conname := first domform
  coSig   := rest getDualSignatureFromDB conname
  --entries are T for arguments which are domains; NIL for computational objects
  and/[x for x in coSig] => form2HtString(domform,nil,true)
  arglist := [unquote x for x in rest domform] where
    unquote arg  ==
      arg is [f,:args] =>
        f = 'QUOTE => first args
        [f,:[unquote x for x in args]]
      arg
  fargtypes:=CDDAR getConstructorModemapFromDB conname
--argtypes:= sublisFormal(arglist,fargtypes)
  form2HtString([conname,:[fn for arg in arglist for x in coSig
                   for ftype in fargtypes]],nil,true) where
    fn() ==
      x => arg
      typ := sublisFormal(arglist,ftype)
      mathform2HtString algCoerceInteractive(arg,typ,'(OutputForm))

mathform2HtString form == escapeString
  $fortInts2Floats: local := false
  form := niladicHack form
  form is ['QUOTE,a] => strconc('"'",strconc/fortexp0 a)
  form is ['BRACKET,['AGGLST,:arg]] =>
    if arg is ['construct,:r] then arg := r
    arg :=
      atom arg => [arg]
      [y for x in arg | y := (x is ['QUOTE,a] => a; x)]
    tailPart := strconc/[strconc('",",STRINGIMAGE x) for x in rest arg]
    strconc('"[",STRINGIMAGE first arg,tailPart,'"]")
  form is ['BRACKET,['AGGLST,'QUOTE,arg]] =>
    if atom arg then arg := [arg]
    tailPart := strconc/[strconc('",",x) for x in rest arg]
    strconc('"[",first arg,tailPart,'"]")
  atom form => form
  strconc/fortexp0 form

niladicHack form ==
  atom form => form
  form is [x] and GETL(x,"NILADIC") => x
  [niladicHack x for x in form]

--============================================================================
--                Getting Operations from Domain
--============================================================================

getDomainOpTable(dom,fromIfTrue,:options) ==
  ops := KAR options
  $predEvalAlist : local := nil
  $returnNowhereFromGoGet: local := true
  domname := dom.0
  conname := first domname
  abb := getConstructorAbbreviation conname
  opAlist := getConstructorOperationsFromDB conname
  "append"/[removeDuplicates [[op1,:fn] for [sig,slot,pred,key,:.] in u
              | key ~= 'Subsumed and ((null ops and (op1 := op)) or (op1 := memq(op,ops)))]
                 for [op,:u] in opAlist] where
    memq(op,ops) ==   --dirty trick to get 0 and 1 instead of Zero and One
      MEMQ(op,ops) => op
      op = 'One  => MEMQ(1,ops) and 1
      op = 'Zero => MEMQ(0,ops) and 0
      false
    fn() ==
      sig1 := sublisFormal(rest domname,sig)
      predValue := evalDomainOpPred(dom,pred)
      info :=
        null predValue =>
          1   -- signifies not exported
        not fromIfTrue => nil
        cell := compiledLookup(op,sig1,dom) =>
          [f,:r] := cell
          f = 'nowhere => 'nowhere           --see replaceGoGetSlot
          f = 'makeSpadConstant => 'constant
          f = function IDENTITY => 'constant
          f = 'newGoGet => substitute('_$,domname,devaluate first r)
          not vector? r => systemError devaluateList r
          substitute('_$,domname,devaluate r)
        'nowhere
      [sig1,:info]

evalDomainOpPred(dom,pred) == process(dom,pred) where
  process(dom,pred) ==
    u := convert(dom,pred)
    u = 'T => true
    evpred(dom,u)
  convert(dom,pred) ==
    pred is [op,:argl] =>
      op in '(AND and) => ['AND,:[convert(dom,x) for x in argl]]
      op in '(OR or)   => ['OR,:[convert(dom,x) for x in argl]]
      op in '(NOT not) => ['NOT,convert(dom,first argl)]
      op = "has" =>
        [arg,p] := argl
        p is ['ATTRIBUTE,a] => ['HasAttribute,arg,MKQ a]
        ['HasCategory,arg,convertCatArg p]
      systemError '"unknown predicate form"
    pred = 'T => true
    systemError nil
  convertCatArg p ==
    atom p or #p = 1 => MKQ p
    ['%list,MKQ first p,:[convertCatArg x for x in rest p]]
  evpred(dom,pred) ==
    k := POSN1(pred,$predicateList) => testBitVector(dom.3,k + 1)
    evpred1(dom,pred)
  evpred1(dom,pred) ==
    pred is [op,:argl] =>
      op in '(AND and) => "and"/[evpred1(dom,x) for x in argl]
      op in '(OR or)   =>  "or"/[evpred1(dom,x) for x in argl]
      op = 'NOT => not evpred1(dom,first argl)
      k := POSN1(pred,$predicateList) => testBitVector(dom.3,k + 1)
      op = 'HasAttribute =>
        [arg,[.,a]] := argl
        attPredIndex := LASSOC(a,dom.2)
        null attPredIndex  => nil
        attPredIndex = 0 => true
        testBitVector(dom.3,attPredIndex)
      nil
    pred = 'T => true
    systemError '"unknown atomic predicate form"