1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
|
;;; devan-util.el --- support for Devanagari Script Composition
;; Copyright (C) 1996, 2001 Free Software Foundation, Inc.
;; Author: KAWABATA, Taichi <kawabata@is.s.u-tokyo.ac.jp>
;; Keywords: multilingual, Indian, Devanagari
;; This file is part of GNU Emacs.
;; GNU Emacs 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.
;; GNU Emacs 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.
;;; Commentary:
;; History:
;; 1996.10.18 written by KAWABATA, Taichi <kawabata@is.s.u-tokyo.ac.jp>
;; 1997.3.24 fixed some bugs.
;; Future work ::
;; Decompose the input characters and process them on the character basis.
;; Devanagari script composition rules and related programs.
;;; Code:
;;;
;;; Steps toward composition of Devanagari Characters.
;;;
;;; Basic functions.
;;;###autoload
(defun indian-to-devanagari (char)
"Convert IS 13194 character CHAR to Devanagari basic characters.
If CHAR is not IS 13194, return CHAR as is."
(let ((charcodes (split-char char)))
(if (eq (car charcodes) 'indian-is13194)
(make-char 'indian-2-column ?\x21 (nth 1 charcodes))
char)))
;;;###autoload
(defun devanagari-to-indian (char)
"Convert Devanagari basic character CHAR to IS 13194 characters.
If CHAR is not Devanagari basic character, return CHAR as is."
(let ((charcodes (split-char char)))
(if (and (eq (car charcodes) 'indian-2-column)
(= (nth 1 charcodes) ?\x21))
(make-char 'indian-is13194 (nth 2 charcodes))
char)))
;;;###autoload
(defun indian-to-devanagari-region (from to)
"Convert IS 13194 characters in region to Devanagari basic characters.
When called from a program, expects two arguments,
positions (integers or markers) specifying the region."
(interactive "r")
(save-excursion
(goto-char from)
(while (< (point) to)
(let ((char (following-char)))
(if (eq (char-charset char) 'indian-is13194)
(progn
(delete-char 1)
(insert (indian-to-devanagari char)))
(forward-char 1))))))
;;;###autoload
(defun devanagari-to-indian-region (from to)
"Convert Devanagari basic characters in region to Indian characters.
When called from a program, expects two arguments,
positions (integers or markers) specifying the region."
(interactive "r")
(save-excursion
(goto-char from)
(while (< (point) to)
(let ((char (following-char)))
(if (eq (char-charset char) 'indian-2-column)
(progn
(delete-char 1)
(insert (devanagari-to-indian char)))
(forward-char 1))))))
;;;###autoload
(defun indian-to-devanagari-string (string)
"Convert Indian characters in STRING to Devanagari Basic characters."
(let* ((len (length string))
(i 0)
(vec (make-vector len 0)))
(while (< i len)
(aset vec i (indian-to-devanagari (aref string i)))
(setq i (1+ i)))
(concat vec)))
;; Phase 0 - Determine whether the characters can be composed.
;;
;;;
;;; Regular expressions to split characters for composition.
;;;
;;
;; Indian script word contains one or more syllables.
;; In BNF, it can be expressed as follows:
;;
;; Word ::= {Syllable} [Cons-Syllable]
;; Syllable ::= Cons-Vowel-Syllable | Vowel-Syllable
;; Vowel-Syllable ::= V[D]
;; Cons-Vowel-Syllable ::= [Cons-Syllable] Full-Cons [M] [D]
;; Cons-Syllable ::= [Pure-Cons] [Pure-Cons] [Pure-Cons] Pure-Cons
;; Pure-Cons ::= Full-Cons H
;; Full-Cons ::= C [N]
;;
;; {} repeat, [] optional
;;
;; C - Consonant ($(5!3!4!5!6!7!8!9!:!;!<!=!>!?!@!A!B!C!D!E(B
;; $(5!F!G!H!I!J!K!L!M!N!O!P!Q!R!S!T!U!V!W!X(B)
;; N - Nukta ($(5!i(B)
;; H - Halant($(5!h(B) or Virama
;; V - Vowel ($(5!$!%!&!'!(!)!*!+!,!-!.!/!0!1!2#&#'#*(B)
;; ("$(5#&#'#*(B" can be obtained by IS13194 vowels with nukta.)
;; D - Vowel Modifiers, i.e. Anuswar, Chandrabindu ($(5!!!"(B)
;; (Visaraga ($(5!#(B) is excluded.)
;; M - Matra ($(5!Z![!\!]!^!_!`!a!b!c!d!e!f!g#K#L#M(B)
;; ("$(5#K#L#M(B" can be obtained by IS13194 matras with nukta.)
;;
;; In Emacs, one syllable of Indian language is considered to be one
;; composite glyph. If we expand the above expression for
;; cons-vowel-syllable, it would be:
;;
;; [[C [N] H] [C [N] H] [C [N] H] C [N] H] C [N] [M] [D]
;;
;; Therefore, in worst case, the one syllable may contain
;; following characters.
;;
;; C N H C N H C N H C N H C N M D
;;
;; The example is a sanskrit word "kArtsnya", where five consecutive
;; consonants appear.
;;
;; On the other hand, consonant-syllable, which appears at the end of
;; the word, would have the following expression:
;;
;; [C [N] H] [C [N] H] [C [N] H] C [N] H
;;
;; This is acceptable BEFORE proper consonant-syllable is input. The
;; string which doesn't match with the above expression is invalid and
;; thus must be fixed.
;;
;; Note:
;; Third case can be considered, which is an acceptable syllable and can
;; not add any code more.
;;
;; [[C [N] H] [C [N] H] [C [N] H] C [N] H] C [N] [M] D
;;
;; However, to make editing possible even in this condition, we will
;; not consider about this case.
;;
;; Note:
;; Currently, it seems that the only following consonants would have
;; Nukta sign attatched.
;; ($(5!3!4!5!:!?!@!I(B)
;; Therefore, [$(5!3(B-$(5!X(B]$(5!i(B? can be re-written as
;; \\([$(5!3!4!5!:!?!@!I(B]$(5!i(B\\)\\|[$(5!3(B-$(5!X(B]
(defconst devanagari-full-cons
"\\(\\([$(5!3!4!5!:!?!@!I(B]$(5!i(B\\)\\|[$(5!3(B-$(5!X$.$E"%(B]\\)"
"Devanagari full consonant")
(defconst devanagari-pure-cons
(concat "\\(" devanagari-full-cons "$(5!h(B\\)")
"Devanagari pure consonant")
(defconst devanagari-matra
"\\(\\([$(5!_![!\(B]$(5!i(B\\)\\|[$(5!Z(B-$(5!g#K#L#M(B]\\)"
"Devanagari Matra Signs. '$(5#K#L#M(B' can also be created from the combination
of '$(5!_![!\(B' and nukta sign.")
(defconst devanagari-vowel
"\\(\\([$(5!*!&!'(B]$(5!i(B\\)\\|[$(5!$(B-$(5!2#&#'#*(B]\\)"
"Devanagari Vowels. '$(5#&#'#*(B' can also be created from the combination
of '$(5!*!&!'(B' and nukta sign.")
(defconst devanagari-vowel-syllable
(concat devanagari-vowel "[$(5!!!"(B]?")
"Devanagari vowel syllable.")
(defconst devanagari-cons-syllable
(concat devanagari-pure-cons "?" devanagari-pure-cons "?"
devanagari-pure-cons "?" devanagari-pure-cons "$")
"Devanagari consonant syllable")
(defconst devanagari-cons-vowel-syllable
(concat "\\("
devanagari-pure-cons "?" devanagari-pure-cons "?"
devanagari-pure-cons "?" devanagari-pure-cons "\\)?"
devanagari-full-cons devanagari-matra "?[$(5!!!"(B]?")
"Devanagari consonant vowel syllable.")
;;
;; Also, digits and virams should be processed other than syllables.
;;
;; In IS 13194, Avagrah is obtained by Nukta after Viram, and
;; OM is obtained by Nukta after Chandrabindu
;;
(defconst devanagari-digit-viram-visarga
"[$(5!q(B-$(5!z!j!#(B]")
(defconst devanagari-other-sign
"\\([$(5!!!j(B]$(5!i(B\\)\\|\\([$(5#!#J(B]\\)")
(defconst devanagari-composite-glyph-unit
(concat "\\(" devanagari-cons-syllable
"\\)\\|\\(" devanagari-vowel-syllable
"\\)\\|\\(" devanagari-cons-vowel-syllable
"\\)\\|\\(" devanagari-other-sign
"\\)\\|\\(" devanagari-digit-viram-visarga "\\)")
"Regexp matching to Devanagari string to be composed form one glyph.")
;;(put-charset-property charset-devanagari-1-column
;; 'char-to-glyph 'devanagari-compose-string)
;;(put-charset-property charset-devanagari-2-column
;; 'char-to-glyph 'devanagari-compose-string)
;; Sample
;;
;;(string-match devanagari-cons-vowel-syllable-examine "$(5!X![(B") => 0
;;(string-match devanagari-cons-vowel-syllable-examine "$(5!F!h!D!\(B") => 0
;;(string-match devanagari-cons-vowel-syllable-examine "$(5!X![!F!h!D!\(B") => 0
;;
;; Steps toward the composition
;; Converting Character Codes to Composite Glyph.
;;
;; Example : $(5!X![(B/$(5!F!h!D!\(B
;;
;; First, convert Characters to appropriate glyphs.
;;
;; => $(5!X![(B/$(5"F!D!\(B
;;
;; Then, determine the base glyph, apply-orders and apply-rules.
;;
;; => $(5!X(B (ml.mr) $(5![(B / $(5!D(B (ml.mr) $(5"F(B (mr ml) $(5!\(B
;;
;; Finally, convert 2-column glyphs to 1-column glyph
;; if such a glyph exist.
;;
;; => $(6!X(B (ml.mr) $(6![(B / $(6!D(B (ml.mr) $(6"F(B (mr ml) $(6!\(B
;;
;; Compose the glyph.
;;
;; => 4$(6!Xt%![0!X![1(B/4$(6!Dt%"Fv#!\0!D"F!\1(B
;; => 4$(6!Xt%![0!X![14!Dt%"Fv#!\0!D"F!\1(B
;;
;;
;; Phase 1: Converting Character Code to Glyph Code.
;;
;;
;; IMPORTANT:
;; There may be many rules that you many want to suppress.
;; In that case, please comment out that rule.
;;
;; RULES WILL BE EVALUATED FROM FIRST TO LAST.
;; PUT MORE SPECIFIC RULES FIRST.
;;
;; TO DO:
;; Prepare multiple specific list of rules for each languages
;; that adopt Devanagari script.
;;
(defconst devanagari-char-to-glyph-rules
'(
;; `r' at the top of syllable and followed by other consonants.
;; ("[^$(5!h(B]\\($(5!O!h(B\\)[$(5!3(B-$(5!X(B]" "$(5"p(B")
("^\\($(5!O!h(B\\)[$(5!3(B-$(5!X(B]" "$(5"p(B")
;; Ligature Rules
("\\($(5!3!h!B!h!O!h!M(B\\)" "$(5$!(B" sanskrit)
("\\($(5!3!h!B!h!T(B\\)" "$(5$"(B" sanskrit)
("\\($(5!3!h!B!h!M(B\\)" "$(5$#(B" sanskrit)
("\\($(5!3!h!F!h!M(B\\)" "$(5$$(B")
("\\($(5!3!h!O!h!M(B\\)" "$(5$%(B")
("\\($(5!3!h!O(B\\)" "$(5"#(B") ; Post "r"
("\\($(5!3!h!T!h!M(B\\)" "$(5$&(B" sanskrit)
("\\($(5!3!h(B\\)$(5!3!h(B[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"3(B") ; Special Half Form
("\\($(5!3!h!3(B\\)" "$(5$'(B")
("\\($(5!3!h(B\\)$(5!B!h!O(B" "$(5"3(B") ; Special Rules for "k-tr"
("\\($(5!3!h!B(B\\)" "$(5$((B")
("\\($(5!3!h!F(B\\)" "$(5$)(B")
("\\($(5!3!h!L(B\\)" "$(5$*(B")
("\\($(5!3!h!M(B\\)" "$(5$+(B")
("\\($(5!3!h!Q(B\\)" "$(5$,(B")
("\\($(5!3!h!T(B\\)" "$(5$-(B")
("\\($(5!3!h!V!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"l(B") ; Half Form
("\\($(5$.!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"l(B") ; Half Form
("\\($(5!3!h!V(B\\)" "$(5$.(B")
("\\($(5!3!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"3(B") ; Half Form
("\\($(5!3!i!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"s(B") ; Nukta Half Form
("\\($(5!3!i(B\\)" "$(5#3(B") ; Nukta
("\\($(5!4!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"4(B") ; Half Form
("\\($(5!4!i!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"t(B") ; Nukta Half Form
("\\($(5!4!i(B\\)" "$(5#4(B") ; Nukta
("\\($(5!5!h!O!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"`(B") ; Half Form
("\\($(5!5!h!O(B\\)" "$(5"$(B") ; Post "r"
("\\($(5!5!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"5(B") ; Half Form
("\\($(5!5!i!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"u(B") ; Nukta Half Form
("\\($(5!5!i(B\\)" "$(5#5(B") ; Nukta
("\\($(5!6!h!F!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"a(B") ; Half Form
("\\($(5!6!h!F(B\\)" "$(5$/(B")
; Slot
("\\($(5!6!h!O(B\\)" "$(5!6"q(B") ; Post "r"
("\\($(5!6!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"6(B") ; Half Form
("\\($(5!7!h!3!h!B!h!M(B\\)" "$(5$0(B" sanskrit)
("\\($(5!7!h!3!h!V!h!T(B\\)" "$(5$1(B" sanskrit)
("\\($(5!7!h!3!h!B(B\\)" "$(5$2(B" sanskrit)
("\\($(5!7!h!3!h!V(B\\)" "$(5$3(B" sanskrit)
("\\($(5!7!h!3!h!O(B\\)" "$(5$9"q(B") ; Special Rule. May be precomposed font needed.
("\\($(5!7!h!6!h!O(B\\)" "$(5$4(B" sanskrit)
("\\($(5!7!h!3!h!M(B\\)" "$(5$5(B" sanskrit)
("\\($(5!7!h!4!h!M(B\\)" "$(5$6(B" sanskrit)
("\\($(5!7!h!5!h!M(B\\)" "$(5$7(B" sanskrit)
("\\($(5!7!h!6!h!M(B\\)" "$(5$8(B" sanskrit)
("\\($(5!7!h!3(B\\)" "$(5$9(B")
("\\($(5!7!h!4(B\\)" "$(5$:(B")
("\\($(5!7!h!5!h!O(B\\)" "$(5$;"q(B") ; Special Rule. May be precomposed font needed.
("\\($(5!7!h!5(B\\)" "$(5$;(B")
("\\($(5!7!h!6(B\\)" "$(5$<(B")
("\\($(5!7!h!7(B\\)" "$(5$=(B")
("\\($(5!7!h!F(B\\)" "$(5$>(B")
("\\($(5!7!h!L(B\\)" "$(5$?(B")
("\\($(5!7!h!M(B\\)" "$(5$@(B")
("\\($(5!8!h(B\\)[$(5!8!<(B]$(5!h(B" "$(5"8(B") ; Half Form
("\\($(5!8!h!8(B\\)" "$(5$A(B")
("\\($(5!8!h!<(B\\)" "$(5$B(B")
("\\($(5!8!h!O!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"8"q(B") ; Half Form Post "r"
("\\($(5!8!h!O(B\\)" "$(5!8"q(B") ; Post "r"
("\\($(5!8!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"8(B") ; Half Form
("\\($(5!9!h!M(B\\)" "$(5$C(B")
("\\($(5!:!h!O(B\\)" "$(5$D(B")
("\\($(5!:!h!<!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"m(B") ; Half Form
("\\($(5!:!h!<(B\\)" "$(5$E(B")
("\\($(5!:!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5":(B") ; Half Form
("\\($(5!:!i!h!O(B\\)" "$(5"!(B") ; Nukta Post "r"
("\\($(5!:!i!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"z(B") ; Nukta Half Form
("\\($(5!:!i(B\\)" "$(5#:(B") ; Nukta
("\\($(5!;!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5";(B") ; Half Form
("\\($(5!<!h(B\\)$(5!8!h(B[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"<(B") ; Special Half Form
("\\($(5!<!h!8(B\\)" "$(5$F(B")
("\\($(5!<!h(B\\)$(5!:!h(B[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"<(B") ; Special Half Form
("\\($(5!<!h!:(B\\)" "$(5$G(B")
("\\($(5!<!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"<(B") ; Half Form
("\\($(5!=!h!3(B\\)" "$(5$H(B")
("\\($(5!=!h!=(B\\)" "$(5$I(B")
("\\($(5!=!h!>(B\\)" "$(5$J(B")
("\\($(5!=!h!M(B\\)" "$(5$K(B")
("\\($(5!>!h!M(B\\)" "$(5$L(B")
("\\($(5!?!h!5!h!M(B\\)" "$(5$M(B" sanskrit)
("\\($(5!?!h!6!h!O(B\\)" "$(5$N(B" sanskrit)
("\\($(5!?!h!O!h!M(B\\)" "$(5$O(B")
("\\($(5!?!h!5(B\\)" "$(5$P(B")
("\\($(5!?!h!6(B\\)" "$(5$Q(B")
("\\($(5!?!h!?(B\\)" "$(5$R(B")
("\\($(5!?!h!L(B\\)" "$(5$S(B")
("\\($(5!?!h!M(B\\)" "$(5$T(B")
("\\($(5!?!i(B\\)" "$(5#?(B") ; Nukta
("\\($(5!@!h!M(B\\)" "$(5$`(B")
("\\($(5!@!i(B\\)" "$(5#@(B") ; Nukta
("\\($(5!A!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"A(B") ; Half Form
("\\($(5!B!h(B\\)$(5!B!h!O(B" "$(5"B(B") ; Special Rule for "t-tr"
("\\($(5!B!h!B!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"c(B") ; Half Form
("\\($(5!B!h!B(B\\)" "$(5$a(B")
("\\($(5!B!h!F(B\\)" "$(5$b(B")
("\\($(5!B!h!O!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"d(B") ; Half Form Post "r"
("\\($(5!B!h!O(B\\)" "$(5"%(B") ; Post "r"
("\\($(5!B!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"B(B") ; Half Form
("\\($(5!C!h!O(B\\)" "$(5!C"q(B") ; Post "r"
("\\($(5!C!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"C(B") ; Half Form
("\\($(5!D!h!D!h!M(B\\)" "$(5$c(B")
("\\($(5!D!h!E!h!M(B\\)" "$(5$d(B")
("\\($(5!D!h!K!h!M(B\\)" "$(5$e(B")
("\\($(5!D!h!K!h!O(B\\)" "$(5$r"r(B") ; Special Case for "dbhr" ; ***
("\\($(5!D!h!O!h!M(B\\)" "$(5$f(B")
("\\($(5!D!h!T!h!M(B\\)" "$(5$g(B")
("\\($(5!D!h!5!h!O(B\\)" "$(5$h(B")
("\\($(5!D!h!6!h!O(B\\)" "$(5$i(B")
("\\($(5!D!h!D!h!T(B\\)" "$(5$j(B")
("\\($(5!D!h!E!h!T(B\\)" "$(5$k(B")
("\\($(5!D!h(B\\)$(5!E!h(B[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5!D!h(B") ; Special Half Form (for ddhra)
("\\($(5!D!h!5(B\\)" "$(5$l(B")
("\\($(5!D!h!6(B\\)" "$(5$m(B")
("\\($(5!D!h!D(B\\)" "$(5$n(B")
("\\($(5!D!h!E(B\\)" "$(5$o(B")
("\\($(5!D!h!F(B\\)" "$(5$p(B")
("\\($(5!D!h(B\\)$(5!J!h(B" "$(5!D!h(B") ; Suppressing "db-"
("\\($(5!D!h!J(B\\)" "$(5$q(B")
("\\($(5!D!h!K(B\\)" "$(5$r(B")
("\\($(5!D!h!L(B\\)" "$(5$s(B")
("\\($(5!D!h!M(B\\)" "$(5$t(B")
("\\($(5!D!h!T(B\\)" "$(5$u(B")
("\\($(5!E!h!F!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"e(B") ; Half Form
("\\($(5!E!h!F(B\\)" "$(5$v(B")
("\\($(5!E!h!O!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"f(B") ; Half Form Post "r"
("\\($(5!E!h!O(B\\)" "$(5!E"q(B") ; Post "r"
("\\($(5!E!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"E(B") ; Half Form
("\\($(5!F!h!F!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"k(B") ; Half Form
("\\($(5!F!h!F(B\\)" "$(5$w(B")
("\\($(5!F!h!O(B\\)" "$(5!F"q(B")
("\\($(5!F!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"F(B") ; Half Form
("\\($(5!G!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"G(B") ; Nukta Half Form
("\\($(5!H!h(B\\)$(5!B!h!O(B" "$(5"H(B") ; Special Rule for "p-tr"
("\\($(5!H!h!B!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"g(B") ; Half Form
("\\($(5!H!h!B(B\\)" "$(5$x(B")
("\\($(5!H!h!F(B\\)" "$(5$y(B")
("\\($(5!H!h!Q(B\\)" "$(5$z(B")
("\\($(5!H!h!O(B\\)" "$(5"&(B") ; Post "r"
("\\($(5!H!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"H(B") ; Half Form
("\\($(5!I!h!O(B\\)" "$(5"'(B") ; Post "r"
("\\($(5!I!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"I(B") ; Half Form
("\\($(5!I!i!h!O(B\\)" "$(5""(B") ; Nukta Post "r"
("\\($(5!I!i!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"y(B") ; Nukta Half Form
("\\($(5!I!i(B\\)" "$(5#I(B") ; Nukta
("\\($(5!J!h(B\\)$(5!F!h(B[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"J(B") ; Special Half Form
("\\($(5!J!h!F(B\\)" "$(5${(B")
("\\($(5!J!h(B\\)$(5!J!h(B[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"J(B") ; Special Half Form
("\\($(5!J!h!J(B\\)" "$(5$|(B")
("\\($(5!J!h(B\\)$(5!T!h(B[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"J(B") ; Special Half Form
("\\($(5!J!h!T(B\\)" "$(5$}(B")
("\\($(5!J!h!O(B\\)" "$(5!J"q(B") ; Post "r"
("\\($(5!J!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"J(B") ; Half Form
("\\($(5!K!h!F(B\\)" "$(5$~(B")
("\\($(5!K!h!O(B\\)" "$(5!K"q(B") ; Post "r"
("\\($(5!K!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"K(B") ; Half Form
("\\($(5!L!h!F(B\\)" "$(5#P(B")
("\\($(5!L!h!Q(B\\)" "$(5#Q(B")
("\\($(5!L!h!O(B\\)" "$(5!L"q(B") ; Post "r"
("\\($(5!L!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"L(B") ; Half Form
("\\($(5!M!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"M(B") ; Half Form
("\\($(5!N!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"N(B") ; Half Form
;; special form for "ru".
("\\($(5!O!](B\\)" "$(5",(B")
("\\($(5!O!^(B\\)" "$(5"-(B")
("\\($(5!P!](B\\)" "$(5".(B")
("\\($(5!P!^(B\\)" "$(5"/(B")
;;
("\\($(5!Q!h!Q(B\\)" "$(5#`(B" sanskrit)
("\\($(5!Q!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"Q(B") ; Half Form
("\\($(5!R!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"R(B") ; Half Form
("\\($(5!S!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"S(B") ; Half Form
("\\($(5!T!h!F(B\\)" "$(5#a(B")
("\\($(5!T!h!T(B\\)" "$(5#b(B")
("\\($(5!T!h!O(B\\)" "$(5!T"q(B") ; Post "r"
("\\($(5!T!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"T(B") ; Half Form
("\\($(5!U!h!8!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"h(B") ; Half Form
("\\($(5!U!h!8(B\\)" "$(5#c(B")
("\\($(5!U!h!F(B\\)" "$(5#d(B")
("\\($(5!U!h!J(B\\)" "$(5#e(B")
("\\($(5!U!h!Q(B\\)" "$(5#f(B")
("\\($(5!U!h(B\\)$(5!T!h!O(B" "$(5"U(B") ; Special Half Form
("\\($(5!U!h!T!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"j(B") ; Half Form
; ("\\($(5!U!h!T(B\\)" "$(5#g(B")
("\\($(5!U!h!O!h!T(B\\)" "$(5#g(B")
("\\($(5!U!h!O!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"i(B") ; Half Form
("\\($(5!U!h!O(B\\)" "$(5")(B") ; Post "r"
("\\($(5!U!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"U(B") ; Half Form
("\\($(5!V!h!=!h!O!h!M(B\\)" "$(5#h(B")
("\\($(5!V!h!=!h!M(B\\)" "$(5#i(B")
("\\($(5!V!h!=!h!T(B\\)" "$(5#j(B")
("\\($(5!V!h!=(B\\)" "$(5#k(B")
("\\($(5!V!h!>(B\\)" "$(5#l(B")
("\\($(5!V!h!O(B\\)" "$(5!V"q(B") ; Post "r"
("\\($(5!V!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"V(B") ; Half Form
("\\($(5!W!h!F!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"W"F(B") ; Special Half Form
("\\($(5!W!h!F(B\\)" "$(5#m(B")
("\\($(5!W!h!O(B\\)" "$(5#n(B")
("\\($(5!W!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"W(B") ; Half Form
("\\($(5!X!h!A(B\\)" "$(5#p(B")
("\\($(5!X!h!F(B\\)" "$(5#q(B")
("\\($(5!X!h!L(B\\)" "$(5#r(B")
("\\($(5!X!h!M(B\\)" "$(5#s(B")
("\\($(5!X!h!O(B\\)" "$(5#t(B")
("\\($(5!X!h!Q(B\\)" "$(5#u(B")
("\\($(5!X!h!T(B\\)" "$(5#v(B")
;; Special Ligature Rules
("\\($(5!X!_(B\\)" "$(5#R(B")
;; For consonants other than listed above, glyph-composition will
;; be applied. If the consonant which is preceding "$(5!O(B" does not
;; have the vertical line (such as "$(5!?(B"), "$(5"r(B" is put beneath the
;; consonant.
;;
("[$(5!7!9!=!>!?!@!D!O!P!R!S!X(B]\\($(5!h!O(B\\)" "$(5"r(B")
("[$(5!6!8!C!E!F!H!J!K!L!M!T!V(B]\\($(5!h!O(B\\)" "$(5"q(B")
("$(5!?!i(B\\($(5!h!O(B\\)" "$(5"r(B")
("$(5!@!i(B\\($(5!h!O(B\\)" "$(5"r(B")
;; Nukta with Non-Consonants
("\\($(5!!!i(B\\)" "$(5#!(B")
("\\($(5!&!i(B\\)" "$(5#&(B")
("\\($(5!'!i(B\\)" "$(5#'(B")
("\\($(5!*!i(B\\)" "$(5#*(B")
("\\($(5![!i(B\\)" "$(5#L(B")
("\\($(5!\!i(B\\)" "$(5#M(B")
("\\($(5!_!i(B\\)" "$(5#K(B")
("\\($(5!j!i(B\\)" "$(5#J(B")
;; Special rule for "r + some vowels"
("\\($(5!O!_!i(B\\)" "$(5#*"p(B")
("\\($(5!O![!i(B\\)" "$(5#&"p(B")
("\\($(5!O!\!i(B\\)" "$(5#'"p(B")
("\\($(5!O!_(B\\)" "$(5!*"p(B")
;; If everything fails, "y" will connect to the front consonant.
("\\($(5!h!M(B\\)" "$(5"](B")
)
"Alist of regexps of Devanagari character sequences vs composed characters.")
(let ((rules devanagari-char-to-glyph-rules))
(while rules
(let ((rule (car rules))
(chars) (char) (glyphs) (glyph))
(setq rules (cdr rules))
(string-match "\\\\(\\(.+\\)\\\\)" (car rule))
(setq chars (substring (car rule) (match-beginning 1) (match-end 1)))
(setq char (string-to-char chars))
(setq glyphs (cdr rule))
(setq glyph (string-to-char (car glyphs)))
(put-char-code-property
char 'char-to-glyph
;; We don't "cons" it since priority is top to down.
(append (get-char-code-property char 'char-to-glyph) (list rule)))
(if (and (< ?(5z(B glyph) ; Glyphs only.
(null (get-char-code-property glyph 'glyph-to-char)))
; One glyph may corresponds to multiple characters,
; e.g., surrounding vowel in Tamil, etc.
; but for Devanagari, we put this restriction
; to make sure the fact that one glyph corresponds to one char.
(put-char-code-property
glyph 'glyph-to-char
(cons (list (car glyphs) chars)
(get-char-code-property glyph 'glyph-to-char)
))))))
;;
;; Function used in both characters-to-glyphs conversion and
;; glyphs-to-characters conversion.
;;
(defun max-match-len (regexp)
"Return the maximum length of text that can match the pattern REGEXP.
Only [...] pattern of regexp is recognized."
(let ((len 0)
(index 0))
(while (string-match "\\[\\([^\]]\\)+\\]" regexp index)
(setq len (+ len (- (match-beginning 0) index) 1)
index (match-end 0)))
len))
;; Return t iff at least one member appears in both LIST1 and LIST2.
(defun intersecting-p (list1 list2)
(let ((found nil))
(while (and list1 (not found))
(if (memq (car list1) list2)
(setq found t)
(setq list1 (cdr list1))))
found))
(defun string-conversion-by-rule (source symbol &rest specs)
"Convert string SOURCE by rules stored in SYMBOL property of each character.
The remaining arguments forms a list SPECS that restricts applicable rules.
The rules has the form ((REGEXP STR RULE-SPEC ...) ...).
Each character sequence in STRING that matches REGEXP is
replaced by STR.
If SPECS is nil, only rules with no RULE-SPECs is applied. Otherwise
rules with no RULE-SPECS and rules that have at least one member of
SPECS in RULE-SPECs is applied.
Rules are tested in the order of the list, thus more specific rules
should be placed in front of less specific rules.
If rule is given in the forms of regexp '...\\(...\\)...', a character
sequence that matches the pattern inside of the parenthesis is the
subject of the match. Otherwise, the entire expression is the subject
of the match."
(let ((pos 0)
(dst-str ""))
(while (< pos (length source))
(let ((found nil)
(rules (get-char-code-property
(string-to-char
(substring source pos)) symbol)))
(while rules
(let* ((rule (car rules))
(regexp (car rule))
(replace-str (car (cdr rule)))
(rule-specs (cdr (cdr rule)))
search-pos)
(if (not (or (null rule-specs)
(intersecting-p specs rule-specs)))
(setq rules (cdr rules))
(if (null (string-match "\\\\(.+\\\\)" regexp))
(progn
(setq regexp (concat "\\(" regexp "\\)"))
(setq search-pos pos))
(setq search-pos (- pos (max-match-len
(substring regexp
(string-match "^[^\\\\]*" regexp)
(match-end 0))))))
(if (< search-pos 0) (setq search-pos 0))
(if (string-match regexp source search-pos)
(if (= (match-beginning 1) pos)
(progn
(setq dst-str (concat dst-str replace-str))
(setq rules nil) ; Get out of the loop.
(setq found t)
;; proceed `pos' for replaced characters.
(setq pos (match-end 1)))
(setq rules (cdr rules)))
(setq rules (cdr rules))))))
;; proceed to next position
(if (not found)
(setq dst-str (concat dst-str (substring source pos (1+ pos)))
pos (1+ pos)))))
dst-str))
;;
;; Convert Character Code to Glyph Code
;;
;;;###autoload
(defun char-to-glyph-devanagari (string &rest langs)
"Convert Devanagari characters in STRING to Devanagari glyphs.
Ligatures and special rules are processed."
(apply
'string-conversion-by-rule
(append (list string 'char-to-glyph) langs)))
;; Example:
;;(char-to-glyph-devanagari "$(5!X)
(?$(5!^(B 0 (br . tr))
(?$(5!_(B 0 (br . tr))
(?$(5!`(B 0 (mr . mr)) ; (tc . bc)
(?$(5!a(B 0 (mr . mr))
(?$(5!b(B 0 (mr . mr))
(?$(5!c(B 0 (mr . mr))
(?$(5!d(B 0)
(?$(5!e(B 0)
(?$(5!f(B 0)
(?$(5!g(B 0)
(?$(5!h(B 0 (br . tr))
(?$(5!i(B 0 (br . tr))
(?$(5!j(B 0)
(nil 0)
(nil 0)
(nil 0)
(nil 0)
(nil 0)
(nil 0)
(?$(5!q(B 0)
(?$(5!r(B 0)
(?$(5!s(B 0)
(?$(5!t(B 0)
(?$(5!u(B 0)
(?$(5!v(B 0)
(?$(5!w(B 0)
(?$(5!x(B 0)
(?$(5!y(B 0)
(?$(5!z(B 0)
(nil 0)
(nil 0)
(nil 0)
(nil 0)
(?$(5"!(B 0)
(?$(5""(B 0)
(?$(5"#(B 0)
(?$(5"$(B 0)
(?$(5"%(B 0)
(?$(5"&(B 0)
(?$(5"'(B 0)
(?$(5"((B 0)
(?$(5")(B 0)
(?$(5"*(B 0)
(?$(5"+(B 0)
(?$(5",(B 0)
(?$(5"-(B 0)
(?$(5".(B 0)
(?$(5"/(B 0)
(?$(5"0(B 0)
(?$(5"1(B 0)
(?$(5"2(B 0)
(?$(5"3(B 0)
(?$(5"4(B 0)
(?$(5"5(B 0)
(?$(5"6(B 0)
(?$(5"7(B 0)
(?$(5"8(B 0)
(?$(5"9(B 0)
(?$(5":(B 0)
(?$(5";(B 0)
(?$(5"<(B 0)
(?$(5"=(B 0)
(?$(5">(B 0)
(?$(5"?(B 0)
(?$(5"@(B 0)
(?$(5"A(B 0)
(?$(5"B(B 0)
(?$(5"C(B 0)
(?$(5"D(B 0)
(?$(5"E(B 0)
(?$(5"F(B 0)
(?$(5"G(B 0)
(?$(5"H(B 0)
(?$(5"I(B 0)
(?$(5"J(B 0)
(?$(5"K(B 0)
(?$(5"L(B 0)
(?$(5"M(B 0)
(?$(5"N(B 0)
(?$(5"O(B 0)
(?$(5"P(B 0)
(?$(5"Q(B 0)
(?$(5"R(B 0)
(?$(5"S(B 0)
(?$(5"T(B 0)
(?$(5"U(B 0)
(?$(5"V(B 0)
(?$(5"W(B 0)
(?$(5"X(B 0)
(?$(5"Y(B 0)
(?$(5"Z(B 0)
(?$(5"[(B 0)
(?$(5"\(B 0)
(?$(5"](B 0)
(?$(5"^(B 0)
(?$(5"_(B 0)
(?$(5"`(B 0)
(?$(5"a(B 0)
(?$(5"b(B 0)
(?$(5"c(B 0)
(?$(5"d(B 0)
(?$(5"e(B 0)
(?$(5"f(B 0)
(?$(5"g(B 0)
(?$(5"h(B 0)
(?$(5"i(B 0)
(?$(5"j(B 0)
(?$(5"k(B 0)
(?$(5"l(B 0)
(?$(5"m(B 0)
(?$(5"n(B 0)
(?$(5"o(B 0)
(?$(5"p(B 10 (mr . mr))
(?$(5"q(B 0 (br . br))
(?$(5"r(B 0 (br . tr))
(?$(5"s(B 0)
(?$(5"t(B 0)
(?$(5"u(B 0)
(?$(5"v(B 0)
(?$(5"w(B 0)
(?$(5"x(B 0)
(?$(5"y(B 0)
(?$(5"z(B 0)
(?$(5"{(B 0)
(?$(5"|(B 0)
(?$(5"}(B 0)
(?$(5"~(B 0)
(?$(5#!(B 0)
(?$(5#"(B 0)
(?$(5##(B 0)
(?$(5#$(B 0)
(?$(5#%(B 0)
(?$(5#&(B 0)
(?$(5#'(B 0)
(?$(5#((B 0)
(?$(5#)(B 0)
(?$(5#*(B 0)
(?$(5#+(B 0)
(?$(5#,(B 0)
(?$(5#-(B 0)
(?$(5#.(B 0)
(?$(5#/(B 0)
(?$(5#0(B 0)
(?$(5#1(B 0)
(?$(5#2(B 0)
(?$(5#3(B 0)
(?$(5#4(B 0)
(?$(5#5(B 0)
(?$(5#6(B 0)
(?$(5#7(B 0)
(?$(5#8(B 0)
(?$(5#9(B 0)
(?$(5#:(B 0)
(?$(5#;(B 0)
(?$(5#<(B 0)
(?$(5#=(B 0)
(?$(5#>(B 0)
(?$(5#?(B 0)
(?$(5#@(B 0)
(?$(5#A(B 0)
(?$(5#B(B 0)
(?$(5#C(B 0)
(?$(5#D(B 0)
(?$(5#E(B 0)
(?$(5#F(B 0)
(?$(5#G(B 0)
(?$(5#H(B 0)
(?$(5#I(B 0)
(?$(5#J(B 0)
(?$(5#K(B 0 (br . tr))
(?$(5#L(B 0 (br . tr))
(?$(5#M(B 0 (br . tr))
(?$(5#N(B 0)
(?$(5#O(B 0)
(?$(5#P(B 0)
(?$(5#Q(B 0)
(?$(5#R(B 0)
(?$(5#S(B 0)
(?$(5#T(B 0)
(?$(5#U(B 0)
(?$(5#V(B 0)
(?$(5#W(B 0)
(?$(5#X(B 0)
(?$(5#Y(B 0)
(?$(5#Z(B 0)
(?$(5#[(B 0)
(?$(5#\(B 0)
(?$(5#](B 0)
(?$(5#^(B 0)
(?$(5#_(B 0)
(?$(5#`(B 0)
(?$(5#a(B 0)
(?$(5#b(B 0)
(?$(5#c(B 0)
(?$(5#d(B 0)
(?$(5#e(B 0)
(?$(5#f(B 0)
(?$(5#g(B 0)
(?$(5#h(B 0)
(?$(5#i(B 0)
(?$(5#j(B 0)
(?$(5#k(B 0)
(?$(5#l(B 0)
(?$(5#m(B 0)
(?$(5#n(B 0)
(?$(5#o(B 0)
(?$(5#p(B 0)
(?$(5#q(B 0)
(?$(5#r(B 0)
(?$(5#s(B 0)
(?$(5#t(B 0)
(?$(5#u(B 0)
(?$(5#v(B 0)
(?$(5#w(B 0)
(?$(5#x(B 0)
(?$(5#y(B 0)
(?$(5#z(B 0)
(?$(5#{(B 0)
(?$(5#|(B 0)
(?$(5#}(B 0)
(?$(5#~(B 0)
(?$(5$!(B 0)
(?$(5$"(B 0)
(?$(5$#(B 0)
(?$(5$$(B 0)
(?$(5$%(B 0)
(?$(5$&(B 0)
(?$(5$'(B 0)
(?$(5$((B 0)
(?$(5$)(B 0)
(?$(5$*(B 0)
(?$(5$+(B 0)
(?$(5$,(B 0)
(?$(5$-(B 0)
(?$(5$.(B 0)
(?$(5$/(B 0)
(?$(5$0(B 0)
(?$(5$1(B 0)
(?$(5$2(B 0)
(?$(5$3(B 0)
(?$(5$4(B 0)
(?$(5$5(B 0)
(?$(5$6(B 0)
(?$(5$7(B 0)
(?$(5$8(B 0)
(?$(5$9(B 0)
(?$(5$:(B 0)
(?$(5$;(B 0)
(?$(5$<(B 0)
(?$(5$=(B 0)
(?$(5$>(B 0)
(?$(5$?(B 0)
(?$(5$@(B 0)
(?$(5$A(B 0)
(?$(5$B(B 0)
(?$(5$C(B 0)
(?$(5$D(B 0)
(?$(5$E(B 0)
(?$(5$F(B 0)
(?$(5$G(B 0)
(?$(5$H(B 0)
(?$(5$I(B 0)
(?$(5$J(B 0)
(?$(5$K(B 0)
(?$(5$L(B 0)
(?$(5$M(B 0)
(?$(5$N(B 0)
(?$(5$O(B 0)
(?$(5$P(B 0)
(?$(5$Q(B 0)
(?$(5$R(B 0)
(?$(5$S(B 0)
(?$(5$T(B 0)
(?$(5$U(B 0)
(?$(5$V(B 0)
(?$(5$W(B 0)
(?$(5$X(B 0)
(?$(5$Y(B 0)
(?$(5$Z(B 0)
(?$(5$[(B 0)
(?$(5$\(B 0)
(?$(5$](B 0)
(?$(5$^(B 0)
(?$(5$_(B 0)
(?$(5$`(B 0)
(?$(5$a(B 0)
(?$(5$b(B 0)
(?$(5$c(B 0)
(?$(5$d(B 0)
(?$(5$e(B 0)
(?$(5$f(B 0)
(?$(5$g(B 0)
(?$(5$h(B 0)
(?$(5$i(B 0)
(?$(5$j(B 0)
(?$(5$k(B 0)
(?$(5$l(B 0)
(?$(5$m(B 0)
(?$(5$n(B 0)
(?$(5$o(B 0)
(?$(5$p(B 0)
(?$(5$q(B 0)
(?$(5$r(B 0)
(?$(5$s(B 0)
(?$(5$t(B 0)
(?$(5$u(B 0)
(?$(5$v(B 0)
(?$(5$w(B 0)
(?$(5$x(B 0)
(?$(5$y(B 0)
(?$(5$z(B 0)
(?$(5${(B 0)
(?$(5$|(B 0)
(?$(5$}(B 0)
(?$(5$~(B 0)
))
;; Determine composition priority and rule of the array of Glyphs.
;; Sort the glyphs with their priority.
(defun devanagari-reorder-glyphs-for-composition (string start end)
(let ((pos start)
(ordered-glyphs nil))
(while (< pos end)
(let ((glyph (aref string pos)))
(setq pos (1+ pos))
(setq ordered-glyphs
(append ordered-glyphs
(list (assq glyph devanagari-composition-rules))))))
(sort ordered-glyphs '(lambda (x y) (< (car (cdr x)) (car (cdr y)))))))
;;(devanagari-compose-to-one-glyph "$(5"5!X![(B") => "4$(6!Xv#"5t%![0!X"5![1(B"
(defun devanagari-compose-to-one-glyph (devanagari-string)
(let* ((o-glyph-list (devanagari-reorder-glyphs-for-composition
devanagari-string 0 (length devanagari-string)))
;; List of glyphs to be composed.
(cmp-glyph-list (list (car (car o-glyph-list))))
(o-glyph-list (cdr o-glyph-list)))
(while o-glyph-list
(let* ((o-glyph (car o-glyph-list))
(glyph (if (< 2 (length o-glyph))
;; default composition
(list (car (cdr (cdr o-glyph))) (car o-glyph))
;; composition with a specified rule
(list '(mr . ml) (car o-glyph)))))
(setq o-glyph-list (cdr o-glyph-list))
(setq cmp-glyph-list (append cmp-glyph-list glyph))))
;; Before applying compose-chars, convert glyphs to
;; 1-column width if possible.
(setq cmp-glyph-list (devanagari-wide-to-narrow cmp-glyph-list))
(if (= (length cmp-glyph-list) 1) (char-to-string (car cmp-glyph-list))
(apply 'compose-chars cmp-glyph-list))))
(defun devanagari-composition-component (string &optional start end)
(or start (setq start 0))
(or end (setq end (length string)))
(let* ((o-glyph-list (devanagari-reorder-glyphs-for-composition
string start end))
;; List of glyphs to be composed.
(cmp-glyph-list (list (car (car o-glyph-list)))))
(setq o-glyph-list (cdr o-glyph-list))
(while o-glyph-list
(let* ((o-glyph (car o-glyph-list))
(glyph (if (< 2 (length o-glyph))
;; default composition
(list (car (cdr (cdr o-glyph))) (car o-glyph))
;; composition with a specified rule
(list '(mr . ml) (car o-glyph)))))
(setq o-glyph-list (cdr o-glyph-list))
(setq cmp-glyph-list (append cmp-glyph-list glyph))))
;; Convert glyphs to 1-column width if possible.
(devanagari-wide-to-narrow cmp-glyph-list)))
;; Utility function for Phase 2.5
;; Check whether GLYPH is a Devanagari vertical modifier or not.
;; If it is a vertical modifier, whether it should be 1-column shape or not
;; depends on previous non-vertical modifier.
(defun devanagari-vertical-modifier-p (glyph)
(string-match (char-to-string glyph)
"[$(5!"!]!^!_!`!a!b!c!h!i"p"q"r#K#L#M(B]"))
(defun devanagari-non-vertical-modifier-p (glyph)
(string-match (char-to-string glyph)
; "[$(5!Z![!\!d!e!f!g(B]"))
"[$(5![(B]"))
(defun devanagari-wide-to-narrow-char (char)
"Convert Devanagari character CHAR to the corresponding narrow character.
If there's no corresponding narrow character, return CHAR as is."
(let ((narrow (cdr (assq char devanagari-1-column-char))))
(or narrow char)))
;;
;; Phase 2.5 Convert appropriate character to 1-column shape.
;;
;; This is temporary and should be removed out when Emacs supports
;; variable width characters.
;;
;; This will convert the composing glyphs (2 column glyphs)
;; to narrow (1 column) glyphs if they exist.
;;
;; devanagari-wide-to-narrow-old converts glyphs simply.
;; devanagari-wide-to-narrow takes care of upper/lower apply-glyphs
;; with 2 column base-glyph.
;;
;; Execution Examples
;;(devanagari-wide-to-narrow '(?$(5!3(B (ml . ml) ?$(5!a(B))
;;(devanagari-wide-to-narrow '(?$(5!F(B (ml . ml) ?$(5!a(B))
(defun devanagari-wide-to-narrow (src-list)
(devanagari-wide-to-narrow-iter src-list t))
(defun devanagari-wide-to-narrow-iter (src-list 2-col-glyph)
(let ((glyph (car src-list)))
(cond ((null src-list) '())
; not glyph code
((not (numberp glyph))
(cons glyph
(devanagari-wide-to-narrow-iter (cdr src-list) 2-col-glyph)))
; glyphs to be processed regardless of the value of "2-col-glyph"
((devanagari-non-vertical-modifier-p glyph)
(cons (devanagari-wide-to-narrow-char glyph)
(devanagari-wide-to-narrow-iter (cdr src-list) 2-col-glyph)))
; glyphs which are depends on the value of "2-col-glyph"
((devanagari-vertical-modifier-p glyph)
(if 2-col-glyph
(cons glyph
(devanagari-wide-to-narrow-iter (cdr src-list) t))
(cons (devanagari-wide-to-narrow-char glyph)
(devanagari-wide-to-narrow-iter (cdr src-list)
2-col-glyph))))
; normal glyph
(t
(if (cdr (assq glyph devanagari-1-column-char))
(cons (devanagari-wide-to-narrow-char glyph)
(devanagari-wide-to-narrow-iter (cdr src-list) nil))
(cons glyph
(devanagari-wide-to-narrow-iter (cdr src-list) t)))))))
;;
;; Summary
;;
;;
;; Decomposition of composite sequence.
;;
;;;###autoload
(defun devanagari-decompose-string (str)
"Decompose Devanagari string STR"
(decompose-string (copy-sequence str)))
;;;###autoload
(defun devanagari-decompose-region (from to)
(interactive "r")
(decompose-region from to))
;;;
;;; Composition
;;;
;;;###autoload
(defun devanagari-compose-string (str &rest langs)
(setq str (copy-sequence str))
(let ((idx 0)
rest match-b match-e)
(while (string-match devanagari-composite-glyph-unit str idx)
(let* ((match-b (match-beginning 0))
(match-e (match-end 0))
(cmps (devanagari-composition-component
(apply
'char-to-glyph-devanagari
(cons (substring str match-b match-e) langs)))))
(compose-string str match-b match-e cmps)
(setq idx match-e))))
str)
;;;###autoload
(defun devanagari-compose-region (from to &rest langs)
(interactive "r")
(save-excursion
(save-restriction
(narrow-to-region from to)
(goto-char (point-min))
(while (re-search-forward devanagari-composite-glyph-unit nil t)
(let* ((match-b (match-beginning 0)) (match-e (match-end 0))
(cmps (devanagari-composition-component
(apply
'char-to-glyph-devanagari
(cons (buffer-substring match-b match-e) langs)))))
(compose-region match-b match-e cmps))))))
;; For pre-write and post-read conversion
;;;###autoload
(defun devanagari-compose-from-is13194-region (from to)
"Compose IS 13194 characters in the region to Devanagari characters."
(interactive "r")
(save-excursion
(save-restriction
(narrow-to-region from to)
(indian-to-devanagari-region (point-min) (point-max))
(devanagari-compose-region (point-min) (point-max))
(- (point-max) (point-min)))))
;;;###autoload
(defun in-is13194-devanagari-post-read-conversion (len)
(let ((pos (point)))
(devanagari-compose-from-is13194-region pos (+ pos len))))
;;;###autoload
(defun devanagari-decompose-to-is13194-region (from to)
"Decompose Devanagari characters in the region to IS 13194 characters."
(interactive "r")
(save-excursion
(save-restriction
(narrow-to-region from to)
(devanagari-decompose-region (point-min) (point-max))
(devanagari-to-indian-region (point-min) (point-max)))))
;;;###autoload
(defun in-is13194-devanagari-pre-write-conversion (from to)
(let ((old-buf (current-buffer)))
(set-buffer (generate-new-buffer " *temp*"))
(if (stringp from)
(insert from)
(insert-buffer-substring old-buf from to))
(devanagari-decompose-to-is13194-region (point-min) (point-max))
;; Should return nil as annotations.
nil))
;; For input/output of ITRANS
;;;###autoload
(defun devanagari-encode-itrans-region (from to)
(interactive "r")
(save-restriction
(narrow-to-region from to)
(devanagari-decompose-to-is13194-region (point-min) (point-max))
(indian-encode-itrans-region (point-min) (point-max))))
;;;###autoload
(defun devanagari-decode-itrans-region (from to)
(interactive "r")
(save-restriction
(narrow-to-region from to)
(indian-decode-itrans-region (point-min) (point-max))
(devanagari-compose-from-is13194-region (point-min) (point-max))))
;;
(provide 'devan-util)
;; Local Variables:
;; coding: iso-2022-7bit
;; End:
;;; devan-util.el ends here
|
