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
|
/*
* KANJI Code conversion routines.
*/
#include <kpathsea/config.h>
#include <kpathsea/c-memstr.h>
#include <kpathsea/variable.h>
#include <kpathsea/readable.h>
#include <kpathsea/c-limits.h>
#include <kpathsea/c-pathmx.h>
#include <ptexenc/c-auto.h>
#include <ptexenc/ptexenc.h>
#include <ptexenc/kanjicnv.h>
#include <ptexenc/unicode.h>
#include <ptexenc/unicode-jp.h>
#include <ctype.h>
#define ENC_UNKNOWN 0
#define ENC_JIS 1
#define ENC_EUC 2
#define ENC_SJIS 3
#define ENC_UTF8 4
#define ENC_UPTEX 5
static int default_kanji_enc;
static boolean UPTEX_enabled;
static boolean ptex_mode = false;
static boolean prior_file_enc = false;
#define ESC '\033'
#ifndef NOFILE
# ifndef OPEN_MAX
# define OPEN_MAX 132 /* sup_max_in_open(127) +alpha */
# endif
# define NOFILE OPEN_MAX
#endif
const char *ptexenc_version_string = PTEXENCVERSION;
#if defined(WIN32)
FILE *Poptr;
int infile_enc_auto;
#else
static int infile_enc_auto = 1;
#endif
static int file_enc = ENC_UNKNOWN;
static int internal_enc = ENC_UNKNOWN;
static int terminal_enc = ENC_UNKNOWN;
const_string enc_to_string(int enc)
{
switch (enc) {
case ENC_JIS: return "jis";
case ENC_EUC: return "euc";
case ENC_SJIS: return "sjis";
case ENC_UTF8: return "utf8";
case ENC_UPTEX: if (UPTEX_enabled) return "uptex";
default: return "?";
}
}
static int string_to_enc(const_string str)
{
if (str == NULL) return ENC_UNKNOWN;
if (strcasecmp(str, "default")== 0) return default_kanji_enc;
if (strcasecmp(str, "jis") == 0) return ENC_JIS;
if (strcasecmp(str, "euc") == 0) return ENC_EUC;
if (strcasecmp(str, "sjis") == 0) return ENC_SJIS;
if (strcasecmp(str, "utf8") == 0) return ENC_UTF8;
if (UPTEX_enabled && strcasecmp(str, "uptex") == 0) return ENC_UPTEX;
if (strcasecmp(str, "BINARY") == 0) return ENC_JIS;
if (strcasecmp(str, "ISO-2022-JP") == 0) return ENC_JIS;
if (strcasecmp(str, "EUC-JP") == 0) return ENC_EUC;
if (strcasecmp(str, "Shift_JIS") == 0) return ENC_SJIS;
if (strcasecmp(str, "UTF-8") == 0) return ENC_UTF8;
return -1; /* error */
}
static int get_default_enc(void)
{
/* kpse_var_value("PTEX_KANJI_ENC") aborts
if 'kpse_program_name' is empty. It typically occurs
when 'ptex' and 'jmpost' print version messages. */
string var = getenv("PTEX_KANJI_ENC");
int enc = string_to_enc(var);
if (enc < 0) {
fprintf(stderr, "Warning: Unknown environment value "
"PTEX_KANJI_ENC='%s'\n", var);
} else if (enc != ENC_UNKNOWN) {
return enc;
}
return default_kanji_enc;
}
static void set_file_enc(int enc)
{
if (enc == ENC_UPTEX) file_enc = ENC_UTF8;
else /* rest */ file_enc = enc;
}
static void set_internal_enc(int enc)
{
if (enc == ENC_SJIS) internal_enc = ENC_SJIS;
else if (UPTEX_enabled && enc == ENC_UPTEX) internal_enc = ENC_UPTEX;
else /* EUC, JIS, UTF8 */ internal_enc = ENC_EUC;
}
static int get_file_enc(void)
{
if (file_enc == ENC_UNKNOWN) set_file_enc(get_default_enc());
return file_enc;
}
int get_internal_enc(void)
{
if (internal_enc == ENC_UNKNOWN) set_internal_enc(get_default_enc());
return internal_enc;
}
static int get_terminal_enc(void)
{
if (terminal_enc == ENC_UNKNOWN) {
char lang[16]; /* enough large space */
const char *s = getenv("LC_ALL");
if (s == NULL) s = getenv("LC_MESSAGES");
if (s == NULL) s = getenv("LANG");
if (s == NULL) s = getenv("LANGUAGE");
if (s == NULL) s = "";
if (strrchr(s, '.') != NULL) s = strrchr(s, '.') + 1;
strncpy(lang, s, sizeof(lang) - 1);
lang[sizeof(lang) - 1] = '\0';
if (strcasecmp(lang, "euc") == 0) terminal_enc = ENC_EUC;
else if (strcasecmp(lang, "eucJP")== 0) terminal_enc = ENC_EUC;
else if (strcasecmp(lang, "ujis") == 0) terminal_enc = ENC_EUC;
else if (strcasecmp(lang, "sjis") == 0) terminal_enc = ENC_SJIS;
else if (strcasecmp(lang, "utf8") == 0) terminal_enc = ENC_UTF8;
else if (strcasecmp(lang, "UTF-8")== 0) terminal_enc = ENC_UTF8;
else if (strcasecmp(lang, "jis") == 0) terminal_enc = ENC_JIS;
else if (strcasecmp(lang, "ISO-2022-JP")== 0) terminal_enc = ENC_JIS;
else terminal_enc = get_file_enc();
}
return terminal_enc;
}
/* enable ptex mode (use flag 0x100 for Japanese char) */
void ptenc_ptex_mode (const boolean enable)
{
//fprintf(stderr, "ptenc_ptex_mode is called! (%d)\n", enable);
ptex_mode = enable;
}
/* enable/disable UPTEX */
void enable_UPTEX (boolean enable)
{
UPTEX_enabled = enable;
if (enable) {
default_kanji_enc = ENC_UPTEX;
internal_enc = ENC_UPTEX;
} else {
#ifdef WIN32
default_kanji_enc = ENC_UTF8;
internal_enc = ENC_SJIS;
#else
default_kanji_enc = ENC_UTF8;
internal_enc = ENC_EUC;
#endif
}
}
void set_prior_file_enc(void)
{
prior_file_enc = true;
}
const_string get_enc_string(void)
{
static char buffer[20]; /* enough large space */
if (get_file_enc() == get_internal_enc()) {
return enc_to_string(get_file_enc());
} else {
sprintf(buffer, "%s.%s",
enc_to_string(get_file_enc()),
enc_to_string(get_internal_enc()));
return buffer;
}
}
boolean set_enc_string(const_string file_str, const_string internal_str)
{
int file = string_to_enc(file_str);
int internal = string_to_enc(internal_str);
if (file < 0 || internal < 0) return false; /* error */
if (file != ENC_UNKNOWN) {
set_file_enc(file);
#if !defined(WIN32)
infile_enc_auto = 0;
nkf_disable();
#endif
}
if (internal != ENC_UNKNOWN) set_internal_enc(internal);
return true;
}
boolean is_internalSJIS(void)
{
return (internal_enc == ENC_SJIS);
}
boolean is_internalEUC(void)
{
return (internal_enc == ENC_EUC);
}
boolean is_internalUPTEX(void)
{
return (internal_enc == ENC_UPTEX);
}
boolean is_terminalUTF8(void)
{
#ifdef WIN32
return false;
#else
get_terminal_enc(); return (terminal_enc == ENC_UTF8);
#endif
}
/* check char range */
boolean ismultichr (int length, int nth, int c)
{
if (is_internalUPTEX()) return isUTF8(length, nth, c);
if (length == 2) {
if (nth == 1) {
if (is_internalSJIS()) return isSJISkanji1(c);
/* EUC */ return isEUCkanji1(c);
} else if (nth == 2) {
if (is_internalSJIS()) return isSJISkanji2(c);
/* EUC */ return isEUCkanji2(c);
}
}
if ((length == 3 || length == 4) &&
(0 < nth && nth <= length)) return false;
fprintf(stderr, "ismultichr: unexpected param length=%d, nth=%d\n",
length, nth);
return false;
}
/* check char range (kanji 1st) */
boolean iskanji1(int c)
{
if (is_internalUPTEX()) return (isUTF8(2,1,c) ||
isUTF8(3,1,c) ||
isUTF8(4,1,c));
if (is_internalSJIS()) return isSJISkanji1(c);
/* EUC */ return isEUCkanji1(c);
}
/* check char range (kanji 2nd) */
boolean iskanji2(int c)
{
if (is_internalSJIS()) return isSJISkanji2(c);
/* EUC */ return isEUCkanji2(c);
}
/* multi-byte char length in s[pos] */
#define DEFINE_MULTISTRLEN(SUFF,TYPE) \
int multistrlen ## SUFF(TYPE *s, int len, int pos) \
{ \
s += pos; len -= pos; \
if (is_internalUPTEX()) { \
int ret = UTF8Slength ## SUFF(s, len); \
if (ret < 0) return 1; \
return ret; \
} \
if (len < 2) return 1; \
if (is_internalSJIS()) { \
if (isSJISkanji1(s[0]) && isSJISkanji2(s[1])) return 2; \
} else { /* EUC */ \
if (isEUCkanji1(s[0]) && isEUCkanji2(s[1])) return 2; \
} \
return 1; \
}
DEFINE_MULTISTRLEN(,unsigned char);
DEFINE_MULTISTRLEN(short,unsigned short);
/* for outputting filename (*s) to the terminal */
int multistrlenfilename(unsigned short *s, int len, int pos)
{
s += pos; len -= pos;
if (terminal_enc == ENC_UTF8) {
int ret = UTF8Slengthshort(s, len);
if (ret < 0) return 1;
return ret;
}
if (len < 2) return 1;
if (terminal_enc == ENC_SJIS) {
if (isSJISkanji1(s[0]) && isSJISkanji2(s[1])) return 2;
} else { /* EUC */
if (isEUCkanji1(s[0]) && isEUCkanji2(s[1])) return 2;
}
return 1;
}
/* with not so strict range check */
int multibytelen (int first_byte)
{
if (is_internalUPTEX()) {
return UTF8length(first_byte);
} else if (is_internalSJIS()) {
if (isSJISkanji1(first_byte)) return 2;
} else { /* EUC */
if (isEUCkanji1(first_byte)) return 2;
}
return 1;
}
/* buffer (EUC/SJIS/UTF-8) to internal (EUC/SJIS/UPTEX) code conversion */
long fromBUFF(unsigned char *s, int len, int pos)
{
s += pos; len -= pos;
if (is_internalUPTEX()) {
if (UTF8Slength(s, len) < 0) return s[0];
return UCStoUPTEX(UTF8StoUCS(s));
}
if (len < 2) return s[0];
if (is_internalSJIS()) {
if (isSJISkanji1(s[0]) && isSJISkanji2(s[1])) return HILO(s[0], s[1]);
} else { /* EUC */
if (isEUCkanji1(s[0]) && isEUCkanji2(s[1])) return HILO(s[0], s[1]);
}
return s[0];
}
long fromBUFFshort(unsigned short *s, int len, int pos)
{
int i;
unsigned char sc[6];
s += pos; len -= pos;
for (i=0;i<(len<6 ? len : 6);i++) sc[i]=0xFF&s[i];
return fromBUFF(sc, (len<6 ? len : 6), 0);
}
/* internal (EUC/SJIS/UPTEX) to buffer (EUC/SJIS/UTF-8) code conversion */
long toBUFF(long kcode)
{
if (is_internalUPTEX()) kcode = UCStoUTF8(UPTEXtoUCS(kcode));
return kcode;
}
/* DVI (JIS/UCS) to internal (EUC/SJIS/UPTEX) code conversion */
long fromDVI (long kcode)
{
if (is_internalUPTEX()) return UCStoUPTEX(kcode);
if (is_internalSJIS()) return JIStoSJIS(kcode);
/* EUC */ return JIStoEUC(kcode);
}
/* internal (EUC/SJIS/UPTEX) to DVI (JIS/UCS) code conversion */
long toDVI (long kcode)
{
if (is_internalUPTEX()) return UPTEXtoUCS(kcode);
if (is_internalSJIS()) return SJIStoJIS(kcode);
/* EUC */ return EUCtoJIS(kcode);
}
/* JIS to internal (EUC/SJIS/UPTEX) code conversion */
long fromJIS(long kcode)
{
if (is_internalUPTEX()) return UCStoUPTEX(JIStoUCS2(kcode));
if (is_internalSJIS()) return JIStoSJIS(kcode);
/* EUC */ return JIStoEUC(kcode);
}
/* internal (EUC/SJIS/UPTEX) to JIS code conversion */
long toJIS(long kcode)
{
if (is_internalUPTEX()) return UCS2toJIS(UPTEXtoUCS(kcode));
if (is_internalSJIS()) return SJIStoJIS(kcode);
/* EUC */ return EUCtoJIS(kcode);
}
/* EUC to internal (EUC/SJIS/UPTEX) code conversion */
long fromEUC(long kcode)
{
if (!is_internalUPTEX() && !is_internalSJIS()) return kcode;
return fromJIS(EUCtoJIS(kcode));
}
/* internal (EUC/SJIS/UPTEX) to EUC code conversion */
static long toEUC(long kcode)
{
if (!is_internalUPTEX() && !is_internalSJIS()) return kcode;
return JIStoEUC(toJIS(kcode));
}
/* SJIS to internal (EUC/SJIS/UPTEX) code conversion */
long fromSJIS(long kcode)
{
if (is_internalSJIS()) return kcode;
return fromJIS(SJIStoJIS(kcode));
}
/* internal (EUC/SJIS/UPTEX) to SJIS code conversion */
static long toSJIS(long kcode)
{
if (is_internalSJIS()) return kcode;
return JIStoSJIS(toJIS(kcode));
}
/* KUTEN to internal (EUC/SJIS/UPTEX) code conversion */
long fromKUTEN(long kcode)
{
return fromJIS(KUTENtoJIS(kcode));
}
/* UCS to internal (EUC/SJIS/UPTEX) code conversion */
long fromUCS(long kcode)
{
if (is_internalUPTEX()) return UCStoUPTEX(kcode);
kcode = UCS2toJIS(kcode);
if (kcode == 0) return 0;
return fromJIS(kcode);
}
/* internal (EUC/SJIS/UPTEX) to UCS code conversion */
long toUCS(long kcode)
{
if (is_internalUPTEX()) return UPTEXtoUCS(kcode);
return JIStoUCS2(toJIS(kcode));
}
/* internal (EUC/SJIS/UPTEX) to UTF-8 code conversion */
static long toUTF8 (long kcode)
{
return UCStoUTF8(toUCS(kcode));
}
/* internal (EUC/SJIS/UPTEX) to 'enc' code conversion */
static long toENC(long kcode, int enc)
{
switch (enc) {
case ENC_UTF8: return toUTF8(kcode);
case ENC_JIS: return toJIS(kcode);
case ENC_EUC: return toEUC(kcode);
case ENC_SJIS: return toSJIS(kcode);
default:
fprintf(stderr, "toENC: unknown enc (%d).\n", enc);
return 0;
}
}
#define KANJI_IN LONG(0, ESC, '$', 'B')
#define KANJI_OUT LONG(0, ESC, '(', 'B')
static int put_multibyte(long c, FILE *fp) {
#ifdef WIN32
const int fd = fileno(fp);
if ((fd == fileno(stdout) || fd == fileno(stderr)) && _isatty(fd)) {
HANDLE hStdout;
DWORD ret, wclen;
UINT cp;
wchar_t buff[2];
char str[4];
int mblen;
if (fd == fileno(stdout))
hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
else
hStdout = GetStdHandle(STD_ERROR_HANDLE);
mblen=0;
if (BYTE1(c) != 0) str[mblen++]=BYTE1(c);
if (BYTE2(c) != 0) str[mblen++]=BYTE2(c);
if (BYTE3(c) != 0) str[mblen++]=BYTE3(c);
/* always */ str[mblen++]=BYTE4(c);
#define CP_UTF8 65001
cp = CP_UTF8;
if (MultiByteToWideChar(cp, 0, str, mblen, buff, 2) == 0)
return EOF;
wclen = mblen > 3 ? 2 : 1;
if (WriteConsoleW(hStdout, buff, wclen, &ret, NULL) == 0)
return EOF;
return BYTE4(c);
}
#endif
if (BYTE1(c) != 0 && putc(BYTE1(c), fp) == EOF) return EOF;
if (BYTE2(c) != 0 && putc(BYTE2(c), fp) == EOF) return EOF;
if (BYTE3(c) != 0 && putc(BYTE3(c), fp) == EOF) return EOF;
/* always */ return putc(BYTE4(c), fp);
}
static int flush (unsigned char *buff, int num, FILE *fp)
{
int i, ret = EOF;
/* fprintf(stderr, "putc2: unexpected chars. ( ");
for (i=0; i<num; i++) fprintf(stderr, "%02X ", buff[i]);
fprintf(stderr, ")\n");
*/
for (i=0; i<num; i++) ret = putc(buff[i], fp);
return ret;
}
/* putc() with code conversion */
int putc2(int c, FILE *fp)
/*
c in [0,255]: writes the character c, without code conversion
c in [256,511]: writes the character c-256, with code conversion
*/
{
static int num[NOFILE];
/* 0 : not in Kanji
1..4 : in JIS Kanji and num[] bytes are in store[][]
-1 : in JIS Kanji and store[][] is empty */
static unsigned char store[NOFILE][4];
const int fd = fileno(fp);
int ret = c, output_enc;
#ifdef WIN32
if ((fp == stdout || fp == stderr) && (_isatty(fd) || !prior_file_enc)) {
output_enc = ENC_UTF8;
} else
output_enc = get_file_enc();
#else
if ((fp == stdout || fp == stderr) && !prior_file_enc) {
output_enc = get_terminal_enc();
} else
output_enc = get_file_enc();
#endif
if (ptex_mode && (c<256)) {
if (num[fd] < 0 && output_enc == ENC_JIS) {
put_multibyte(KANJI_OUT, fp);
}
ret = putc(c, fp);
num[fd] = 0;
} else {
c &= 0xFF;
if (num[fd] > 0) { /* multi-byte char */
if (is_internalUPTEX() && iskanji1(c)) { /* error */
ret = flush(store[fd], num[fd], fp);
num[fd] = 0;
}
store[fd][num[fd]] = c;
num[fd]++;
if (multistrlen(store[fd], num[fd], 0) == num[fd]) {
long i = fromBUFF(store[fd], num[fd], 0);
ret = put_multibyte(toENC(i, output_enc), fp);
num[fd] = -1;
} else if ((is_internalUPTEX() && num[fd] == 4) ||
(!is_internalUPTEX() && num[fd] == 2)) { /* error */
ret = flush(store[fd], num[fd], fp);
num[fd] = -1;
}
} else if (iskanji1(c)) { /* first multi-byte char */
if (num[fd] == 0 && output_enc == ENC_JIS) {
ret = put_multibyte(KANJI_IN, fp);
}
store[fd][0] = c;
num[fd] = 1;
} else { /* ASCII */
if (num[fd] < 0 && output_enc == ENC_JIS) {
put_multibyte(KANJI_OUT, fp);
}
ret = putc(c, fp);
num[fd] = 0;
}
}
return ret;
}
/* fputs() with code conversion */
int fputs2(const char *s, FILE *fp)
{
while (*s != '\0') {
int ret = putc2((unsigned char)*s, fp);
if (ret == EOF) return EOF;
s++;
}
return 1;
}
static struct unget_st {
int size;
int buff[4];
} ungetbuff[NOFILE];
static int getc4(FILE *fp)
{
struct unget_st *p = &ungetbuff[fileno(fp)];
if (p->size == 0)
#ifdef WIN32
{
const int fd = fileno(fp);
HANDLE hStdin;
DWORD ret;
wchar_t wc[2];
long c;
static wchar_t wcbuf = L'\0';
if (!(fd == fileno(stdin) && _isatty(fd) && is_internalUPTEX()))
return getc(fp);
hStdin = GetStdHandle(STD_INPUT_HANDLE);
if (wcbuf) {
wc[0] = wcbuf;
wcbuf = L'\0';
}
else if (ReadConsoleW(hStdin, wc, 1, &ret, NULL) == 0)
return EOF;
if (0xd800<=wc[0] && wc[0]<0xdc00) {
if (ReadConsoleW(hStdin, wc+1, 1, &ret, NULL) == 0)
return EOF;
if (0xdc00<=wc[1] && wc[1]<0xe000) {
c = UTF16StoUTF32(wc[0], wc[1]);
} else {
wcbuf = wc[1];
c = U_REPLACEMENT_CHARACTER; /* illegal upper surrogate pair */
}
} else if (0xdc00<=wc[0] && wc[0]<0xe000) {
c = U_REPLACEMENT_CHARACTER; /* illegal lower surrogate pair */
} else {
c = wc[0];
}
c = UCStoUTF8(c);
/* always */ p->buff[p->size++]=BYTE4(c);
if (BYTE3(c) != 0) p->buff[p->size++]=BYTE3(c);
if (BYTE2(c) != 0) p->buff[p->size++]=BYTE2(c);
if (BYTE1(c) != 0) p->buff[p->size++]=BYTE1(c);
}
#else
return getc(fp);
#endif
return p->buff[--p->size];
}
static int ungetc4(int c, FILE *fp)
{
struct unget_st *p = &ungetbuff[fileno(fp)];
if (p->size >= 4) return EOF;
return p->buff[p->size++] = c;
}
static unsigned char *buffer;
static long first, last;
static boolean combin_voiced_sound(boolean semi)
{
int i, mblen;
mblen = is_internalUPTEX() ? 3 : 2;
if (last-mblen < first) return false;
if (multistrlen(buffer,last,last-mblen) != mblen) return false;
i = toUCS(fromBUFF(buffer,last,last-mblen));
i = get_voiced_sound(i, semi);
if (i == 0) return false;
i = toBUFF(fromUCS(i));
if (BYTE2(i) != 0) buffer[last-3] = BYTE2(i);
/* always */ buffer[last-2] = BYTE3(i);
/* always */ buffer[last-1] = BYTE4(i);
return true;
}
static void write_multibyte(long i)
{
if (BYTE1(i) != 0) buffer[last++] = BYTE1(i);
if (BYTE2(i) != 0) buffer[last++] = BYTE2(i);
/* always */ buffer[last++] = BYTE3(i);
/* always */ buffer[last++] = BYTE4(i);
}
static void write_hex(int i)
{
sprintf((char *) buffer + last, "^^%02x", i);
last += 4;
}
/* getc() with check of broken encoding of UTF-8 */
static int getcUTF8(FILE *fp)
{
int c = getc4(fp);
if (isUTF8(2,2,c)) return c;
ungetc4(c, fp);
return EOF;
}
static void get_utf8(int i, FILE *fp)
{
long u = 0, j;
int i2 = EOF, i3 = EOF, i4 = EOF;
switch (UTF8length(i)) {
case 2:
i2 = getcUTF8(fp); if (i2 == EOF) break;
u = UTF8BtoUCS(i, i2);
break;
case 3:
i2 = getcUTF8(fp); if (i2 == EOF) break;
i3 = getcUTF8(fp); if (i3 == EOF) break;
u = UTF8CtoUCS(i, i2, i3);
if (u == U_BOM) return; /* just ignore */
if (u == U_VOICED && combin_voiced_sound(false)) return;
if (u == U_SEMI_VOICED && combin_voiced_sound(true)) return;
break;
case 4:
i2 = getcUTF8(fp); if (i2 == EOF) break;
i3 = getcUTF8(fp); if (i3 == EOF) break;
i4 = getcUTF8(fp); if (i4 == EOF) break;
u = UTF8DtoUCS(i, i2, i3, i4);
break;
default:
u = U_REPLACEMENT_CHARACTER;
break;
}
j = (u != 0) ? toBUFF(fromUCS(u)) : 0;
if (j == 0) { /* can't represent (typically umlaut o in EUC) */
write_hex(i);
if (i2 != EOF) write_hex(i2);
if (i3 != EOF) write_hex(i3);
if (i4 != EOF) write_hex(i4);
} else {
write_multibyte(j);
}
}
static void get_euc(int i, FILE *fp)
{
int j = getc4(fp);
if (isEUCkanji2(j)) {
write_multibyte(toBUFF(fromEUC(HILO(i,j))));
} else {
buffer[last++] = i;
ungetc4(j, fp);
}
}
static void get_sjis(int i, FILE *fp)
{
int j = getc4(fp);
if (isSJISkanji2(j)) {
write_multibyte(toBUFF(fromSJIS(HILO(i,j))));
} else {
buffer[last++] = i;
ungetc4(j, fp);
}
}
static boolean is_tail(long *c, FILE *fp)
{
if (*c == EOF) return true;
if (*c == '\n') return true;
if (*c == '\r') {
int d = getc4(fp);
if (d == '\n') *c = d;
else ungetc4(d, fp);
return true;
}
return false;
}
#define MARK_LEN 4
/* if stream begins with BOM + 7bit char */
static boolean isUTF8Nstream(FILE *fp)
{
int i;
int c[MARK_LEN];
int bom_u[MARK_LEN] = { 0xEF, 0xBB, 0xBF, 0x7E };
int bom_l[MARK_LEN] = { 0xEF, 0xBB, 0xBF, 0 };
for (i=0; i<MARK_LEN; i++) {
c[i] = getc4(fp);
if (!(bom_l[i] <= c[i] && c[i] <= bom_u[i])) {
do { ungetc4(c[i], fp); } while (i-- > 0);
return false;
}
}
ungetc4(c[MARK_LEN-1], fp);
return true;
}
static int infile_enc[NOFILE]; /* ENC_UNKNOWN (=0): not determined
other: determined */
/* input line with encoding conversion */
long input_line2(FILE *fp, unsigned char *buff, unsigned char *buff2,
long pos, const long buffsize, int *lastchar)
{
long i = 0;
static boolean injis = false;
const int fd = fileno(fp);
if (infile_enc[fd] == ENC_UNKNOWN) { /* just after opened */
ungetbuff[fd].size = 0;
if (isUTF8Nstream(fp)) infile_enc[fd] = ENC_UTF8;
else infile_enc[fd] = get_file_enc();
}
buffer = buff;
first = last = pos;
while (last < buffsize-30 && (i=getc4(fp)) != EOF && i!='\n' && i!='\r') {
/* 30 is enough large size for one char */
/* attention: 4 times of write_hex() eats 16byte */
#ifdef WIN32
if (i == 0x1a && first == last &&
fd == fileno(stdin) && _isatty(fd)) { /* Ctrl+Z on console */
i = EOF;
break;
} else
#endif
if (i == ESC) {
if ((i=getc4(fp)) == '$') { /* ESC '$' (Kanji-in) */
i = getc4(fp);
if (i == '@' || i == 'B') {
injis = true;
} else { /* broken Kanji-in */
buffer[last++] = ESC;
buffer[last++] = '$';
if (is_tail(&i, fp)) break;
buffer[last++] = i;
}
} else if (i == '(') { /* ESC '(' (Kanji-out) */
i = getc4(fp);
if (i == 'J' || i == 'B' || i == 'H') {
injis = false;
} else { /* broken Kanji-out */
buffer[last++] = ESC;
buffer[last++] = '(';
if (is_tail(&i, fp)) break;
buffer[last++] = i;
}
} else { /* broken ESC */
buffer[last++] = ESC;
if (is_tail(&i, fp)) break;
buffer[last++] = i;
}
} else { /* rather than ESC */
if (injis) { /* in JIS */
long j = getc4(fp);
if (is_tail(&j, fp)) {
buffer[last++] = i;
i = j;
break;
} else { /* JIS encoding */
i = fromJIS(HILO(i,j));
if (i == 0) i = fromUCS(U_REPLACEMENT_CHARACTER);
write_multibyte(toBUFF(i));
}
} else { /* normal */
if (infile_enc[fd] == ENC_SJIS && isSJISkanji1(i)) {
get_sjis(i, fp);
} else if (infile_enc[fd] == ENC_EUC && isEUCkanji1(i)) {
get_euc(i, fp);
} else if (infile_enc[fd] == ENC_UTF8 && UTF8length(i) > 1) {
get_utf8(i, fp);
} else {
buffer[last++] = i;
}
}
}
}
if (i != EOF || first != last) buffer[last] = '\0';
if (i == EOF || i == '\n' || i == '\r') injis = false;
if (lastchar != NULL) *lastchar = i;
if (buff2!= NULL) for (i=pos; i<=last; i++) buff2[i] = 0;
/* buff2 is initialized */
return last;
}
/* set encode of stdin if fp = NULL */
boolean setinfileenc(FILE *fp, const char *str)
{
int enc;
enc = string_to_enc(str);
if (enc < 0) return false;
infile_enc[fileno(fp)] = enc;
return true;
}
boolean setstdinenc(const char *str)
{
int enc;
enc = string_to_enc(str);
if (enc < 0) return false;
infile_enc[fileno(stdin)] = enc;
return true;
}
#ifdef WIN32
void clear_infile_enc(FILE *fp)
{
infile_enc[fileno(fp)] = ENC_UNKNOWN;
}
#else /* !WIN32 */
static const_string in_filter = NULL;
static FILE *piped_fp[NOFILE];
static int piped_num = 0;
void nkf_disable(void)
{
in_filter = "";
}
#ifdef NKF_TEST
static void nkf_check(void)
{
if (piped_num > 0) {
fprintf(stderr, "nkf_check: %d nkf_open() did not closed.\n",
piped_num);
} else {
fprintf(stderr, "nkf_check: nkf_open() OK.\n");
}
}
#endif /* NKF_TEST */
/* 'mode' must be read */
FILE *nkf_open(const char *path, const char *mode) {
char buff[PATH_MAX * 2 + 20]; /* 20 is enough gaps */
char *name;
FILE *fp;
if (in_filter == NULL) {
in_filter = kpse_var_value("PTEX_IN_FILTER");
if (in_filter == NULL || strcasecmp(in_filter, "no") == 0) {
nkf_disable();
}
#ifdef NKF_TEST
atexit(nkf_check);
#endif /* NKF_TEST */
}
if (in_filter[0] == '\0') return fopen(path, mode);
name = xstrdup(path);
if (kpse_readable_file(name) == NULL) {
free(name);
return NULL; /* can't read */
}
sprintf(buff, "%.*s < '%.*s'", PATH_MAX, in_filter, PATH_MAX, path);
free(name);
/* fprintf(stderr, "\n`%s`", buff); */
fp = popen(buff , "r");
if (piped_num < NOFILE) piped_fp[piped_num++] = fp;
return fp;
}
/* we must close in stack order (FILO) or in queue order (FIFO) */
int nkf_close(FILE *fp) {
infile_enc[fileno(fp)] = ENC_UNKNOWN;
if (piped_num > 0) {
if (fp == piped_fp[piped_num-1]) { /* for FILO */
piped_num--;
return pclose(fp);
}
if (fp == piped_fp[0]) { /* for FIFO */
int i;
piped_num--;
for (i=0; i<piped_num; i++) piped_fp[i] = piped_fp[i+1];
return pclose(fp);
}
}
return fclose(fp);
}
#define break_if_bad_utf8_second(k) if ((k<0x80)||(k>0xBF)) { i--; k='\0'; break; }
#define write_hex_if_not_ascii(c) \
if ((c>=0x20)&&(c<=0x7E)) buffer[last++]=c; else write_hex(c);
unsigned char *ptenc_from_utf8_string_to_internal_enc(const unsigned char *is)
{
int i;
long u = 0, j, len;
int i1, i2, i3, i4;
unsigned char *buf, *buf_bak;
long first_bak, last_bak;
if (terminal_enc != ENC_UTF8 || is_internalUPTEX()) return NULL;
buf_bak = buffer;
first_bak = first;
last_bak = last;
len = strlen(is)+1;
buffer = buf = xmalloc(len);
first = last = 0;
for (i=0; i<strlen(is); i++) {
i1 = is[i]; i2 = i3 = i4 = '\0';
switch (UTF8length(i1)) {
case 1:
buffer[last++] = i1; /* ASCII */
if (i1 == '\0') goto end;
continue;
case 2:
i2 = is[++i]; break_if_bad_utf8_second(i2);
u = UTF8BtoUCS(i1, i2);
break;
case 3:
i2 = is[++i]; break_if_bad_utf8_second(i2);
i3 = is[++i]; break_if_bad_utf8_second(i3);
u = UTF8CtoUCS(i1, i2, i3);
if (u == U_BOM) continue; /* just ignore */
if (u == U_VOICED && combin_voiced_sound(false)) continue;
if (u == U_SEMI_VOICED && combin_voiced_sound(true)) continue;
break;
case 4:
i2 = is[++i]; break_if_bad_utf8_second(i2);
i3 = is[++i]; break_if_bad_utf8_second(i3);
i4 = is[++i]; break_if_bad_utf8_second(i4);
u = UTF8DtoUCS(i1, i2, i3, i4);
break;
default:
u = U_REPLACEMENT_CHARACTER;
break;
}
j = (u != 0) ? toBUFF(fromUCS(u)) : 0;
if (j == 0) { /* can't represent in EUC/SJIS */
if (last+16>=len) buffer = buf = xrealloc(buffer, len=last+64);
write_hex_if_not_ascii(i1);
if (i2 != '\0') write_hex_if_not_ascii(i2);
if (i3 != '\0') write_hex_if_not_ascii(i3);
if (i4 != '\0') write_hex_if_not_ascii(i4);
} else {
write_multibyte(j);
}
}
buffer[last] = '\0';
end:
buffer = buf_bak;
first = first_bak;
last = last_bak;
return buf;
}
unsigned char *ptenc_from_internal_enc_string_to_utf8(const unsigned char *is)
{
int i;
long u = 0, len;
int i1 = EOF, i2 = EOF;
unsigned char *buf, *buf_bak;
long first_bak, last_bak;
if (terminal_enc != ENC_UTF8 || is_internalUPTEX()) return NULL;
buf_bak = buffer;
first_bak = first;
last_bak = last;
len = strlen(is)+1;
buffer = buf = xmalloc(len*4);
first = last = 0;
for (i=0; i<strlen(is); i++) {
i1 = is[i];
switch (multibytelen(i1)) {
case 1:
buffer[last++] = i1; /* ASCII */
if (i1 == '\0') goto end;
continue;
case 2: /* i1: not ASCII */
i2 = is[++i];
if (i2 == '\0') {
write_hex(i1); continue;
} else {
u = JIStoUCS2(toJIS(HILO(i1,i2)));
if (u==0) {
write_hex(i1); write_hex_if_not_ascii(i2); continue;
}
}
break;
default: /* reachable only if internal code is uptex */
u = U_REPLACEMENT_CHARACTER;
break;
}
write_multibyte(UCStoUTF8(u));
}
buffer[last] = '\0';
end:
buffer = buf_bak;
first = first_bak;
last = last_bak;
return buf;
}
int ptenc_get_command_line_args(int *p_ac, char ***p_av)
{
int i, argc;
char **argv;
get_terminal_enc();
if (terminal_enc == ENC_UTF8 && !is_internalUPTEX()) {
argc = *p_ac;
argv = xmalloc(sizeof(char *)*(argc+1));
for (i=0; i<argc; i++) {
argv[i] = ptenc_from_utf8_string_to_internal_enc((*p_av)[i]);
#ifdef DEBUG
fprintf(stderr, "Commandline arguments %d:(%s)\n", i, argv[i]);
#endif /* DEBUG */
}
argv[argc] = NULL;
*p_av = argv;
return terminal_enc;
}
return 0;
}
#endif /* !WIN32 */
|