This file is indexed.

/usr/share/uim/custom.scm is in uim-data 1:1.8.6+gh20180114.64e3173-2build2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  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
;;; custom.scm: Customization support
;;;
;;; Copyright (c) 2003-2013 uim Project https://github.com/uim/uim
;;;
;;; All rights reserved.
;;;
;;; Redistribution and use in source and binary forms, with or without
;;; modification, are permitted provided that the following conditions
;;; are met:
;;; 1. Redistributions of source code must retain the above copyright
;;;    notice, this list of conditions and the following disclaimer.
;;; 2. 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.
;;; 3. Neither the name of authors 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 HOLDERS 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.
;;;;

;; There are complex definitions to experiment the customization
;; mechanism. Will be simplified once the requirement is cleared up.
;; -- YamaKen

(require "i18n.scm")
(require "util.scm")
(require "key.scm")

;; config
(define key-list->gui-key-list 'key-list-export-as-basic)
(define gui-key-list->key-list 'key-list-import-as-basic)
;;(define key-list->gui-key-list 'key-list-export-as-traditional)
;;(define gui-key-list->key-list 'key-list-import-as-traditional)

;; public
(define custom-activity-hooks ())
(define custom-get-hooks ())
(define custom-set-hooks ())
(define custom-literalize-hooks ())
(define custom-update-hooks ())
(define custom-group-update-hooks ())
(define custom-group-list-update-hooks ())

;; private
(define custom-full-featured? #t)
(define custom-rec-alist ())
(define custom-group-rec-alist ())
(define custom-subgroup-alist ())

(define custom-validator-alist
  '((boolean      . custom-boolean?)
    (integer      . custom-integer?)
    (string       . custom-string?)
    (pathname     . custom-pathname?)
    (choice       . custom-valid-choice?)
    (ordered-list . custom-ordered-list?)
    (key          . custom-key?)
    (table        . custom-table?)))

(define anything?
  (lambda (x)
    #t))

(define custom-boolean?
  (lambda (x)
    #t))

(define custom-integer?
  (lambda (x min max)
    (and (integer? x)
	 (<= min x)
	 (<= x max))))

(define custom-string?
  (lambda (x regex)
    (string? x)))

(define custom-pathname?
  (lambda (str type)
    (and (string? str)
	 (symbol? type)
	 (memq type '(regular-file directory)))))

(define custom-valid-choice?
  (lambda arg
    (let ((sym (car arg))
	  (choice-rec-alist (cdr arg)))
      (and (symbol? sym)
	   (assq sym choice-rec-alist)
	   #t))))

(define custom-ordered-list?
  (lambda arg
    (let ((syms (car arg))
	  (choice-rec-alist (cdr arg)))
      (and (list? syms)
	   (every (lambda (sym)
		    (apply custom-valid-choice? (cons sym choice-rec-alist)))
		  syms)))))

(define custom-key?
  (lambda (key-repls)
    (and (list? key-repls)
	 (every (lambda (key)
		  (or (and (string? key)  ;; "<Control>a"
			   ;;(valid-strict-key-str? key)
			   (valid-key-str? key))  ;; acceps translators
		      (and (symbol? key)  ;; 'generic-cancel-key
			   (custom-exist? key 'key))))
		key-repls))))

(define custom-table?
  (lambda arg
    (let ((syms (car arg))
          (choice-rec-alist (cdr arg)))
      (and (list? syms)
           (every (lambda (row)
                    (and (list? row)
                         (every (lambda (cell)
                                  (string? cell))
                                row)))
                  syms)))))

(define custom-pathname-type
  (lambda (custom-sym)
    (car (custom-type-attrs custom-sym))))

(define custom-expand-key-references
  (lambda (key)
    (cond
     ((string? key)
      (list (key-str->gui-key-str key)))
     ((list? key)
      (append-map custom-expand-key-references key))
     ((and (symbol? key)
	   (custom-exist? key 'key))
      (custom-expand-key-references (custom-value key)))
     (else
      ()))))

;; TODO
(define custom-key-advanced-editor?
  (lambda (custom-sym)
    #f))

(define reversed-tag-prefix-alist
  (map (lambda (pair)
	 (cons (cdr pair)
	       (car pair)))
       tag-prefix-alist))

;; TODO: write test
;; (key-str->key-list "<Control><Shift><IgnoreRegularShift>return")
;;   -> (Control_key Shift_key IgnoreRegularShift "return")
;; (key-str->key-list "C-M-a")
;;   -> (Control_key Meta_key "a")
(define key-str->key-list
  (lambda (key-str)
    (unfold (compose not car parse-key-prefix)
	    (compose car parse-key-prefix)
	    (compose cdr parse-key-prefix)
	    key-str
	    (compose list cdr parse-key-prefix))))

;; TODO: write test
(define key-list->key-str
  (lambda (key-list)
    (string-append-map
     (lambda (elem)
       (if (symbol? elem)
	   (let ((mod (cdr (assq elem reversed-tag-prefix-alist))))
	     (string-append "<" mod ">"))
	   elem))
     key-list)))

;; TODO: write test
(define map-key-list-body
  (lambda (body-mapper key-list)
    (map (lambda (elem)
	   (if (string? elem)
	       (body-mapper elem)
	       elem))
	 key-list)))

;; TODO: write test
(define map-key-list-letter
  (lambda (letter-mapper key-list)
    (let ((letter (string->alphabetic-ichar (find string? key-list))))
      (map-key-list-body (lambda (elem)
			   (if letter
			       (charcode->string (letter-mapper letter))
			       elem))
			 key-list))))

;; TODO: write test
(define map-key-str
  (lambda (key-list-mapper key-str)
    (if (string? key-str)
	(let ((key-list (key-str->key-list key-str)))
	  (key-list->key-str (key-list-mapper key-list)))
	key-str)))

;; TODO: write test
(define key-list-upcase
  (lambda (key-list)
    (map-key-list-letter ichar-upcase key-list)))

;; TODO: write test
(define key-list-downcase
  (lambda (key-list)
    (map-key-list-letter ichar-downcase key-list)))

;; TODO: write test
(define key-list-visualize-space
  (lambda (key-list)
    (map-key-list-body (lambda (elem)
			 (if (string=? elem " ")
			     "space"
			     elem))
		      key-list)))

;; TODO: write test
(define key-list-characterize-space
  (lambda (key-list)
    (map-key-list-body (lambda (elem)
			 (if (string=? elem "space")
			     " "
			     elem))
		      key-list)))

;; TODO: write test
(define key-list-encode-shift
  (lambda (key-list)
    (let* ((has-shift? (memq 'Shift_key key-list))
	   (str (find string? key-list))
	   (printable (string->printable-ichar str))
	   (letter (string->alphabetic-ichar str)))
      (filter-map (lambda (elem)
		    (cond
		     ((and (eq? elem 'Shift_key)
			   (ichar-graphic? printable))
		      #f)
		     ((and (string? elem)
			   has-shift?
			   letter)
		      (charcode->string (ichar-upcase letter)))
		     ((and (string? elem)
			   has-shift?
			   (ichar-graphic? printable))
		      str)
		     (else
		      elem)))
		  key-list))))

;; TODO: write test
(define key-list-decode-shift
  (lambda (key-list)
    (let* ((letter (string->alphabetic-ichar (find string? key-list)))
	   (upper-case? (and letter
			     (ichar-upper-case? letter)))
	   (has-shift? (memq 'Shift_key key-list))
	   (stripped (key-list-downcase key-list)))
      (if (and (not has-shift?)
	       upper-case?)
	  (cons 'Shift_key stripped)
	  stripped))))

;; TODO: write test
(define key-list-ignore-regular-shift
  (lambda (key-list)
    (let ((printable (string->printable-ichar (find string? key-list))))
      (if (ichar-graphic? printable)
	  (cons 'IgnoreRegularShift key-list)
	  key-list))))

;; TODO: write test
(define key-list-ignore-letter-shift
  (lambda (key-list)
    (let ((letter (string->alphabetic-ichar (find string? key-list))))
      (if letter
	  (cons 'IgnoreShift key-list)
	  key-list))))

;; TODO: write test
(define key-list-ignore-punct-numeric-shift
  (lambda (key-list)
    (let* ((str (find string? key-list))
	   (c (string->printable-ichar str)))
      (if (and (ichar-graphic? c)
	       (not (ichar-alphabetic? c)))
	  (cons 'IgnoreShift key-list)
	  key-list))))

;; TODO: write test
(define key-list-ignore-case
  (lambda (key-list)
    (let ((letter (string->alphabetic-ichar (find string? key-list))))
      (if letter
	  (cons 'IgnoreCase key-list)
 	  key-list))))

;; TODO: write test
(define key-list-strip-shift
  (lambda (key-list)
    (delete 'Shift_key key-list eq?)))

;; TODO: write test
(define key-list-strip-regular-shift
  (lambda (key-list)
    (let* ((str (find string? key-list))
	   (printable (string->printable-ichar str)))
      (if (ichar-graphic? printable)
	  (key-list-strip-shift key-list)
	  key-list))))

;; TODO: write test
(define key-list-strip-translators
  (lambda (key-list)
    (remove translator-prefix? key-list)))

;; TODO: write test
(define key-list-export-as-basic (compose key-list-visualize-space
					  key-list-encode-shift
					  key-list-strip-translators))

;; TODO: write test
(define key-list-import-as-basic (compose key-list-characterize-space
					  key-list-ignore-punct-numeric-shift
					  key-list-ignore-case
					  key-list-decode-shift
					  key-list-strip-regular-shift))

;; TODO: write test
(define key-list-export-as-traditional (compose key-list-visualize-space
						key-list-strip-translators))

;; TODO: write test
(define key-list-import-as-traditional (compose key-list-characterize-space
						key-list-ignore-regular-shift))

;; TODO: write test
(define key-str->gui-key-str
  (lambda (key-str)
    (map-key-str (symbol-value key-list->gui-key-list)
		 key-str)))

;; TODO: write test
(define gui-key-str->key-str
  (lambda (key-str)
    (map-key-str (symbol-value gui-key-list->key-list)
		 key-str)))

(define custom-choice-label
  (lambda (custom-sym val-sym)
    (let* ((sym-rec-alist (custom-type-attrs custom-sym))
	   (srec (assq val-sym sym-rec-alist)))
      (if srec
	  (custom-choice-rec-label srec)
	  (symbol->string val-sym)))))

(define custom-choice-desc
  (lambda (custom-sym val-sym)
    (let* ((sym-rec-alist (custom-type-attrs custom-sym))
	   (srec (assq val-sym sym-rec-alist)))
      (if srec
	  (custom-choice-rec-desc srec)
	  (symbol->string val-sym)))))

(define custom-choice-range-reflect-olist-val
  (lambda (dst-sym src-sym indication-alist)
    (custom-set-type-info!
     dst-sym
     (cons (custom-type dst-sym)
	   (action-id-list->choice (custom-value src-sym)
				   indication-alist)))))

(define-record 'custom-group-rec
  '((sym   #f)
    (label "")
    (desc  "")))

(define define-custom-group
  (lambda (gsym label desc)
    (let ((grec (custom-group-rec-new gsym label desc)))
      (if (not (custom-group-rec gsym))
	  (begin
	    (set! custom-group-rec-alist (cons grec custom-group-rec-alist))
	    (custom-call-hook-procs 'global
				    custom-group-list-update-hooks))))))

(define custom-group-rec
  (lambda (gsym)
    (assq gsym custom-group-rec-alist)))

;; API
(define custom-group-label
  (lambda (gsym)
    (custom-group-rec-label (custom-group-rec gsym))))

;; API
(define custom-group-desc
  (lambda (gsym)
    (custom-group-rec-desc (custom-group-rec gsym))))

;; API
(define custom-group-subgroups
  (lambda (gsym)
    (let ((groups (filter-map (lambda (pair)
				(let ((primary-grp (car pair))
				      (subgrp (cdr pair)))
				  (and (eq? gsym primary-grp)
				       subgrp)))
			      custom-subgroup-alist)))
      (reverse groups))))

;; API
(define custom-list-groups
  (lambda ()
    (let ((groups (map custom-group-rec-sym custom-group-rec-alist)))
      (reverse groups))))

;; API
(define custom-list-primary-groups
  (lambda ()
    (let ((groups (filter-map
		   (lambda (grec)
		     (let ((grp (custom-group-rec-sym grec)))
		       (and (assq grp custom-subgroup-alist)
			    grp)))
		   custom-group-rec-alist)))
      (reverse groups))))

;; TODO: rewrite test for 'AND' expression
;; API
;; #f means 'any group'
(define custom-collect-by-group
  (lambda groups
    (reverse
     (filter-map (lambda (crec)
		   (let ((custom-groups (custom-rec-groups crec)))
		     (and (or (not (car groups))
			      (every (lambda (group)
				       (memq group custom-groups))
				     groups))
			  (custom-rec-sym crec))))
		 custom-rec-alist))))

;; API
(define custom-add-hook
  (lambda (custom-sym hook-sym proc)
    (set-symbol-value! hook-sym (cons (cons custom-sym proc)
				      (symbol-value hook-sym)))))

;; #f for custom-sym means 'any entries'
(define custom-remove-hook
  (lambda (custom-sym hook-sym)
    (let ((removed (if custom-sym
		       (alist-delete custom-sym (symbol-value hook-sym) eq?)
		       ()))
	  (removed? (if custom-sym
			(assq custom-sym (symbol-value hook-sym))
			(not (null? (symbol-value hook-sym))))))
      (set-symbol-value! hook-sym removed)
      removed?)))

(define custom-hook-procs
  (lambda (sym hook)
    (let* ((filter (lambda (pair)
		     (let ((custom (car pair))
			   (proc (cdr pair)))
		       (and (eq? sym custom)
			    proc))))
	   (procs (filter-map filter
			      hook)))
      procs)))

(define custom-call-hook-procs
  (lambda (sym hook)
    (let ((procs (custom-hook-procs sym hook)))
      (map (lambda (proc)
	     (proc))
	   procs))))

(define-record 'custom-rec
  '((sym     #f)
    (default #f)
    (groups  ())
    (type    ())
    (label   "")
    (desc    "")))

(define custom-rec
  (lambda (sym)
    (assq sym custom-rec-alist)))

;; TODO: rewrite test for overwriting and 'main' subgroup
;; API
(define define-custom
  (lambda (sym default groups type label desc)
    (let* ((primary-grp (car groups))
	   (subgrps (if (null? (cdr groups))
			'(main)
			(cdr groups)))
	   (modified-groups (cons primary-grp subgrps))
	   (crec (custom-rec-new sym default modified-groups type label desc)))
      ;; See also require-custom for error handling TODO
      (for-each (lambda (gsym)
		  (or (custom-group-rec gsym)
		      (error (string-append "undefined group '"
					    (symbol->string gsym)
					    "' is referred by "
					    (symbol->string sym)))))
		modified-groups)
      (set! custom-rec-alist (alist-replace crec custom-rec-alist))
      (custom-call-hook-procs primary-grp custom-group-update-hooks)
      (if (not (symbol-bound? sym))
	  (let ((quoted-default (if (or (symbol? default)
					(list? default))
				    (list 'quote default)
				    default)))
	    (eval (list 'define sym quoted-default)
		  (interaction-environment))
	    (custom-set-value! sym default)))  ;; to apply hooks
      (for-each (lambda (subgrp)
		  (let ((registered (custom-group-subgroups primary-grp)))
		    (if (not (memq subgrp registered))
			(set! custom-subgroup-alist
			      (cons (cons primary-grp subgrp)
				    custom-subgroup-alist)))))
		subgrps))))

;; #f as type means 'any type'
(define custom-exist?
  (lambda (sym type)
    (and (assq sym custom-rec-alist)
	 (or (not type)
	     (eq? type
		  (custom-type sym))))))

;; API
(define custom-valid?
  (lambda (sym val)
    (let* ((type-name (custom-type sym))
	   (type-attrs (custom-type-attrs sym))
	   (valid? (symbol-value (cdr (assq type-name
					    custom-validator-alist)))))
      (apply valid? (cons val type-attrs)))))

;; API
(define custom-value
  (lambda (sym)
    (custom-call-hook-procs sym custom-get-hooks)
    (let ((val (symbol-value sym)))
      (if (custom-valid? sym val)
	  val
	  (custom-default-value sym)))))

;; TODO: rewrite test
;; API
(define custom-set-value!
  (lambda (sym val)
    (and (custom-valid? sym val)
	 (let* ((custom-syms (custom-collect-by-group #f))
		(map-activities (lambda ()
				  (map (lambda (pair)
					 ((cdr pair)))
				       custom-activity-hooks)))
		(pre-activities (map-activities)))
	   (set-symbol-value! sym val)
	   (if (eq? (custom-type sym)
		    'key)
	       (let ((key-val (custom-modify-key-predicate-names val)))
		 (eval (list 'define (symbol-append sym '?)
			     (list 'make-key-predicate (list 'quote key-val)))
		       (interaction-environment))))
	   (custom-call-hook-procs sym custom-set-hooks)
	   (custom-call-hook-procs sym custom-update-hooks)
	   (let ((post-activities (map-activities)))
	     (for-each (lambda (another-sym pre post)
			 (if (and (not (eq? another-sym sym))
				  (not (eq? (not pre)     ;; normalize bool
					    (not post)))) ;; normalize bool
			     (custom-call-hook-procs another-sym
						     custom-update-hooks)))
		       (map car custom-activity-hooks)
		       pre-activities
		       post-activities)
	     #t)))))

;; API
(define custom-touch-value!
  (lambda (sym)
    (custom-set-value! sym
		       (custom-value sym))))

(define custom-active?
  (lambda (sym)
    (let* ((procs (custom-hook-procs sym custom-activity-hooks))
	   (activities (map (lambda (proc)
			      (proc))
			    procs))
	   (active? (apply proc-and activities)))
      active?)))

;; API
(define custom-default?
  (lambda (sym)
    (equal? (symbol-value sym)
	    (custom-default-value sym))))

;; API
(define custom-default-value
  (lambda (sym)
    (custom-rec-default (custom-rec sym))))

;; API
(define custom-groups
  (lambda (sym)
    (custom-rec-groups (custom-rec sym))))

;; API
(define custom-type
  (lambda (sym)
    (car (custom-rec-type (custom-rec sym)))))

(define custom-type-attrs
  (lambda (sym)
    (let* ((crec (custom-rec sym))
	   (typedef (custom-rec-type crec)))
      (cdr typedef))))

;; TODO: write test
;; API for temporary solution
(define custom-type-info
  (lambda (sym)
    (custom-rec-type (custom-rec sym))))

;; TODO: write test
;; API for temporary solution
(define custom-set-type-info!
  (lambda (sym info)
    (custom-rec-set-type! (custom-rec sym)
			  info)
    (custom-call-hook-procs sym custom-update-hooks)))

;; API
(define custom-range
  (lambda (sym)
    (let* ((type (custom-type sym))
	   (attrs (custom-type-attrs sym)))
      (case type
	((choice ordered-list table)
	 (map custom-choice-rec-sym attrs))
	((integer string)
	 attrs)
	(else
	 ())))))

;; API
(define custom-label
  (lambda (sym)
    (custom-rec-label (custom-rec sym))))

;; API
(define custom-desc
  (lambda (sym)
    (custom-rec-desc (custom-rec sym))))

(define custom-list-as-literal
  (lambda (lst)
    (let ((canonicalized (map (lambda (elem)
				(cond
				 ((symbol? elem)
				  (symbol->string elem))
				 ((string? elem)
				  (string-escape elem))
				 (else
				  "")))
			      lst)))
      (string-append "'(" (string-join canonicalized " ") ")"))))

; (custom-list-as-table  '(("a" "b" "c") ("d" "e")))
;   -> "'((\"a\" \"b\" \"c\") (\"d\" \"e\"))"
(define custom-list-as-table
  (lambda (tbl)
    (string-append "'("
      (string-join
        (map (lambda (lst)
          (string-append "(" 
            (string-join
              (map (lambda (elem)
                (string-escape elem)) lst) " ") ")")) tbl) " ") ")")))

;; API
(define custom-value-as-literal
  (lambda (sym)
    (let ((val (custom-value sym))
	  (type (custom-type sym)))
      (cond
       ((eq? type 'integer)
	(number->string val))
       ((eq? type 'string)
	(string-escape val))
       ((eq? type 'pathname)
	(string-escape val))
       ((eq? type 'choice)
	(string-append "'" (symbol->string val)))
       ((or (eq? type 'ordered-list)
	    (eq? type 'key))
	(custom-list-as-literal val))
       ((eq? type 'table)
	(custom-list-as-table val))
       ((or (eq? val #f)
	    (eq? type 'boolean))
	(if (eq? val #f)
	    "#f"
	    "#t"))))))

;; Don't invoke this from a literalize-hook. It will cause infinite loop
(define custom-definition-as-literal
  (lambda (sym)
    (let ((var (symbol->string sym))
	  (val (custom-value-as-literal sym))
	  (hooked (custom-call-hook-procs sym custom-literalize-hooks)))
      (if (not (null? hooked))
	  (string-join hooked "\n")
	  (apply string-append
		 (append
		  (list "(define " var " " val ")")
		  (if (eq? (custom-type sym)
			   'key)
		      (let ((key-val (custom-list-as-literal
				      (custom-modify-key-predicate-names
				       (custom-value sym)))))
			(list "\n(define " var "? "
			      "(make-key-predicate " key-val "))"))
		      ())))))))

;; API
;; TODO: implement after uim 0.4.6 depending on scm-nested-eval
(define custom-broadcast-custom
  (lambda (sym)
  #f))

;; API
;; #f means 'any group'
;; TODO: support "AND" expression
(define custom-broadcast-customs
  (lambda (group)
    (let ((custom-syms (custom-collect-by-group group)))
      (for-each custom-broadcast-custom custom-syms))))

(define custom-register-cb
  (lambda (hook valid? custom-sym ptr gate-func func)
    (and (valid? custom-sym)
	 (let ((cb (lambda () (gate-func func ptr custom-sym))))
	   (custom-add-hook custom-sym hook cb)))))

;;
;; predefined subgroups
;;

(define-custom-group 'main
		     (N_ "-")
		     (N_ "Main settings of this group"))

(define-custom-group 'hidden
		     (N_ "Hidden settings")
		     (N_ "Hidden settings of this group. This group is invisible from uim_custom clients. Exists for internal variable management."))


(prealloc-heaps-for-heavy-job)
(custom-reload-customs)