aboutsummaryrefslogtreecommitdiff
path: root/contrib/ncurses/progs/infocmp.c
blob: add5efb9b4d09030c9c79451b0cfe62379f7ac5f (plain) (blame)
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
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
/****************************************************************************
 * Copyright (c) 1998,1999,2000 Free Software Foundation, Inc.              *
 *                                                                          *
 * Permission is hereby granted, free of charge, to any person obtaining a  *
 * copy of this software and associated documentation files (the            *
 * "Software"), to deal in the Software without restriction, including      *
 * without limitation the rights to use, copy, modify, merge, publish,      *
 * distribute, distribute with modifications, sublicense, and/or sell       *
 * copies of the Software, and to permit persons to whom the Software is    *
 * furnished to do so, subject to the following conditions:                 *
 *                                                                          *
 * The above copyright notice and this permission notice shall be included  *
 * in all copies or substantial portions of the Software.                   *
 *                                                                          *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
 *                                                                          *
 * Except as contained in this notice, the name(s) of the above copyright   *
 * holders shall not be used in advertising or otherwise to promote the     *
 * sale, use or other dealings in this Software without prior written       *
 * authorization.                                                           *
 ****************************************************************************/

/****************************************************************************
 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
 ****************************************************************************/

/*
 *	infocmp.c -- decompile an entry, or compare two entries
 *		written by Eric S. Raymond
 */

#include <progs.priv.h>

#include <term_entry.h>
#include <dump_entry.h>

MODULE_ID("$Id: infocmp.c,v 1.54 2000/03/19 02:56:14 tom Exp $")

#define L_CURL "{"
#define R_CURL "}"

#define MAXTERMS	32	/* max # terminal arguments we can handle */
#define MAX_STRING	1024	/* maximum formatted string */

const char *_nc_progname = "infocmp";

typedef char path[PATH_MAX];

/***************************************************************************
 *
 * The following control variables, together with the contents of the
 * terminfo entries, completely determine the actions of the program.
 *
 ***************************************************************************/

static char *tname[MAXTERMS];	/* terminal type names */
static ENTRY entries[MAXTERMS];	/* terminfo entries */
static int termcount;		/* count of terminal entries */

static bool limited = TRUE;	/* "-r" option is not set */
static bool quiet = FALSE;
static const char *bool_sep = ":";
static const char *s_absent = "NULL";
static const char *s_cancel = "NULL";
static const char *tversion;	/* terminfo version selected */
static int itrace;		/* trace flag for debugging */
static int mwidth = 60;
static int numbers = 0;		/* format "%'char'" to/from "%{number}" */
static int outform = F_TERMINFO;/* output format */
static int sortmode;		/* sort_mode */

/* main comparison mode */
static int compare;
#define C_DEFAULT	0	/* don't force comparison mode */
#define C_DIFFERENCE	1	/* list differences between two terminals */
#define C_COMMON	2	/* list common capabilities */
#define C_NAND		3	/* list capabilities in neither terminal */
#define C_USEALL	4	/* generate relative use-form entry */
static bool ignorepads;		/* ignore pad prefixes when diffing */

#if NO_LEAKS
#undef ExitProgram
static void
ExitProgram(int code) GCC_NORETURN;
/* prototype is to get gcc to accept the noreturn attribute */
static void
ExitProgram(int code)
{
    while (termcount-- > 0)
	_nc_free_termtype(&entries[termcount].tterm);
    _nc_leaks_dump_entry();
    _nc_free_and_exit(code);
}
#endif

static char *
canonical_name(char *ptr, char *buf)
/* extract the terminal type's primary name */
{
    char *bp;

    (void) strcpy(buf, ptr);
    if ((bp = strchr(buf, '|')) != 0)
	*bp = '\0';

    return (buf);
}

/***************************************************************************
 *
 * Predicates for dump function
 *
 ***************************************************************************/

static int
capcmp(int idx, const char *s, const char *t)
/* capability comparison function */
{
    if (!VALID_STRING(s) && !VALID_STRING(t))
	return (s != t);
    else if (!VALID_STRING(s) || !VALID_STRING(t))
	return (1);

    if ((idx == acs_chars_index) || !ignorepads)
	return (strcmp(s, t));
    else
	return (_nc_capcmp(s, t));
}

static int
use_predicate(int type, int idx)
/* predicate function to use for use decompilation */
{
    ENTRY *ep;

    switch (type) {
    case BOOLEAN:
	{
	    int is_set = FALSE;

	    /*
	     * This assumes that multiple use entries are supposed
	     * to contribute the logical or of their boolean capabilities.
	     * This is true if we take the semantics of multiple uses to
	     * be 'each capability gets the first non-default value found
	     * in the sequence of use entries'.
	     *
	     * Note that cancelled or absent booleans are stored as FALSE,
	     * unlike numbers and strings, whose cancelled/absent state is
	     * recorded in the terminfo database.
	     */
	    for (ep = &entries[1]; ep < entries + termcount; ep++)
		if (ep->tterm.Booleans[idx] == TRUE) {
		    is_set = entries[0].tterm.Booleans[idx];
		    break;
		}
	    if (is_set != entries[0].tterm.Booleans[idx])
		return (!is_set);
	    else
		return (FAIL);
	}

    case NUMBER:
	{
	    int value = ABSENT_NUMERIC;

	    /*
	     * We take the semantics of multiple uses to be 'each
	     * capability gets the first non-default value found
	     * in the sequence of use entries'.
	     */
	    for (ep = &entries[1]; ep < entries + termcount; ep++)
		if (VALID_NUMERIC(ep->tterm.Numbers[idx])) {
		    value = ep->tterm.Numbers[idx];
		    break;
		}

	    if (value != entries[0].tterm.Numbers[idx])
		return (value != ABSENT_NUMERIC);
	    else
		return (FAIL);
	}

    case STRING:
	{
	    char *termstr, *usestr = ABSENT_STRING;

	    termstr = entries[0].tterm.Strings[idx];

	    /*
	     * We take the semantics of multiple uses to be 'each
	     * capability gets the first non-default value found
	     * in the sequence of use entries'.
	     */
	    for (ep = &entries[1]; ep < entries + termcount; ep++)
		if (ep->tterm.Strings[idx]) {
		    usestr = ep->tterm.Strings[idx];
		    break;
		}

	    if (usestr == ABSENT_STRING && termstr == ABSENT_STRING)
		return (FAIL);
	    else if (!usestr || !termstr || capcmp(idx, usestr, termstr))
		return (TRUE);
	    else
		return (FAIL);
	}
    }

    return (FALSE);		/* pacify compiler */
}

static bool
useeq(ENTRY * e1, ENTRY * e2)
/* are the use references in two entries equivalent? */
{
    int i, j;

    if (e1->nuses != e2->nuses)
	return (FALSE);

    /* Ugh...this is quadratic again */
    for (i = 0; i < e1->nuses; i++) {
	bool foundmatch = FALSE;

	/* search second entry for given use reference */
	for (j = 0; j < e2->nuses; j++)
	    if (!strcmp(e1->uses[i].name, e2->uses[j].name)) {
		foundmatch = TRUE;
		break;
	    }

	if (!foundmatch)
	    return (FALSE);
    }

    return (TRUE);
}

static bool
entryeq(TERMTYPE * t1, TERMTYPE * t2)
/* are two entries equivalent? */
{
    int i;

    for (i = 0; i < NUM_BOOLEANS(t1); i++)
	if (t1->Booleans[i] != t2->Booleans[i])
	    return (FALSE);

    for (i = 0; i < NUM_NUMBERS(t1); i++)
	if (t1->Numbers[i] != t2->Numbers[i])
	    return (FALSE);

    for (i = 0; i < NUM_STRINGS(t1); i++)
	if (capcmp(i, t1->Strings[i], t2->Strings[i]))
	    return (FALSE);

    return (TRUE);
}

#define TIC_EXPAND(result) _nc_tic_expand(result, outform==F_TERMINFO, numbers)

static void
print_uses(ENTRY * ep, FILE * fp)
/* print an entry's use references */
{
    int i;

    if (!ep->nuses)
	fputs("NULL", fp);
    else
	for (i = 0; i < ep->nuses; i++) {
	    fputs(ep->uses[i].name, fp);
	    if (i < ep->nuses - 1)
		fputs(" ", fp);
	}
}

static const char *
dump_boolean(int val)
/* display the value of a boolean capability */
{
    switch (val) {
    case ABSENT_BOOLEAN:
	return (s_absent);
    case CANCELLED_BOOLEAN:
	return (s_cancel);
    case FALSE:
	return ("F");
    case TRUE:
	return ("T");
    default:
	return ("?");
    }
}

static void
dump_numeric(int val, char *buf)
/* display the value of a boolean capability */
{
    switch (val) {
    case ABSENT_NUMERIC:
	strcpy(buf, s_absent);
	break;
    case CANCELLED_NUMERIC:
	strcpy(buf, s_cancel);
	break;
    default:
	sprintf(buf, "%d", val);
	break;
    }
}

static void
dump_string(char *val, char *buf)
/* display the value of a string capability */
{
    if (val == ABSENT_STRING)
	strcpy(buf, s_absent);
    else if (val == CANCELLED_STRING)
	strcpy(buf, s_cancel);
    else {
	sprintf(buf, "'%.*s'", MAX_STRING - 3, TIC_EXPAND(val));
    }
}

static void
compare_predicate(int type, int idx, const char *name)
/* predicate function to use for entry difference reports */
{
    register ENTRY *e1 = &entries[0];
    register ENTRY *e2 = &entries[1];
    char buf1[MAX_STRING], buf2[MAX_STRING];
    int b1, b2;
    int n1, n2;
    char *s1, *s2;

    switch (type) {
    case CMP_BOOLEAN:
	b1 = e1->tterm.Booleans[idx];
	b2 = e2->tterm.Booleans[idx];
	switch (compare) {
	case C_DIFFERENCE:
	    if (!(b1 == ABSENT_BOOLEAN && b2 == ABSENT_BOOLEAN) && b1 != b2)
		(void) printf("\t%s: %s%s%s.\n",
		    name,
		    dump_boolean(b1),
		    bool_sep,
		    dump_boolean(b2));
	    break;

	case C_COMMON:
	    if (b1 == b2 && b1 != ABSENT_BOOLEAN)
		(void) printf("\t%s= %s.\n", name, dump_boolean(b1));
	    break;

	case C_NAND:
	    if (b1 == ABSENT_BOOLEAN && b2 == ABSENT_BOOLEAN)
		(void) printf("\t!%s.\n", name);
	    break;
	}
	break;

    case CMP_NUMBER:
	n1 = e1->tterm.Numbers[idx];
	n2 = e2->tterm.Numbers[idx];
	dump_numeric(n1, buf1);
	dump_numeric(n2, buf2);
	switch (compare) {
	case C_DIFFERENCE:
	    if (!((n1 == ABSENT_NUMERIC && n2 == ABSENT_NUMERIC)) && n1 != n2)
		(void) printf("\t%s: %s, %s.\n", name, buf1, buf2);
	    break;

	case C_COMMON:
	    if (n1 != ABSENT_NUMERIC && n2 != ABSENT_NUMERIC && n1 == n2)
		(void) printf("\t%s= %s.\n", name, buf1);
	    break;

	case C_NAND:
	    if (n1 == ABSENT_NUMERIC && n2 == ABSENT_NUMERIC)
		(void) printf("\t!%s.\n", name);
	    break;
	}
	break;

    case CMP_STRING:
	s1 = e1->tterm.Strings[idx];
	s2 = e2->tterm.Strings[idx];
	switch (compare) {
	case C_DIFFERENCE:
	    if (capcmp(idx, s1, s2)) {
		dump_string(s1, buf1);
		dump_string(s2, buf2);
		if (strcmp(buf1, buf2))
		    (void) printf("\t%s: %s, %s.\n", name, buf1, buf2);
	    }
	    break;

	case C_COMMON:
	    if (s1 && s2 && !capcmp(idx, s1, s2))
		(void) printf("\t%s= '%s'.\n", name, TIC_EXPAND(s1));
	    break;

	case C_NAND:
	    if (!s1 && !s2)
		(void) printf("\t!%s.\n", name);
	    break;
	}
	break;

    case CMP_USE:
	/* unlike the other modes, this compares *all* use entries */
	switch (compare) {
	case C_DIFFERENCE:
	    if (!useeq(e1, e2)) {
		(void) fputs("\tuse: ", stdout);
		print_uses(e1, stdout);
		fputs(", ", stdout);
		print_uses(e2, stdout);
		fputs(".\n", stdout);
	    }
	    break;

	case C_COMMON:
	    if (e1->nuses && e2->nuses && useeq(e1, e2)) {
		(void) fputs("\tuse: ", stdout);
		print_uses(e1, stdout);
		fputs(".\n", stdout);
	    }
	    break;

	case C_NAND:
	    if (!e1->nuses && !e2->nuses)
		(void) printf("\t!use.\n");
	    break;
	}
    }
}

/***************************************************************************
 *
 * Init string analysis
 *
 ***************************************************************************/

typedef struct {
    const char *from;
    const char *to;
} assoc;

static const assoc std_caps[] =
{
    /* these are specified by X.364 and iBCS2 */
    {"\033c", "RIS"},		/* full reset */
    {"\0337", "SC"},		/* save cursor */
    {"\0338", "RC"},		/* restore cursor */
    {"\033[r", "RSR"},		/* not an X.364 mnemonic */
    {"\033[m", "SGR0"},		/* not an X.364 mnemonic */
    {"\033[2J", "ED2"},		/* clear page */

    /* this group is specified by ISO 2022 */
    {"\033(0", "ISO DEC G0"},	/* enable DEC graphics for G0 */
    {"\033(A", "ISO UK G0"},	/* enable UK chars for G0 */
    {"\033(B", "ISO US G0"},	/* enable US chars for G0 */
    {"\033)0", "ISO DEC G1"},	/* enable DEC graphics for G1 */
    {"\033)A", "ISO UK G1"},	/* enable UK chars for G1 */
    {"\033)B", "ISO US G1"},	/* enable US chars for G1 */

    /* these are DEC private modes widely supported by emulators */
    {"\033=", "DECPAM"},	/* application keypad mode */
    {"\033>", "DECPNM"},	/* normal keypad mode */
    {"\033<", "DECANSI"},	/* enter ANSI mode */

    {(char *) 0, (char *) 0}
};

static const assoc private_modes[] =
/* DEC \E[ ... [hl] modes recognized by many emulators */
{
    {"1", "CKM"},		/* application cursor keys */
    {"2", "ANM"},		/* set VT52 mode */
    {"3", "COLM"},		/* 132-column mode */
    {"4", "SCLM"},		/* smooth scroll */
    {"5", "SCNM"},		/* reverse video mode */
    {"6", "OM"},		/* origin mode */
    {"7", "AWM"},		/* wraparound mode */
    {"8", "ARM"},		/* auto-repeat mode */
    {(char *) 0, (char *) 0}
};

static const assoc ecma_highlights[] =
/* recognize ECMA attribute sequences */
{
    {"0", "NORMAL"},		/* normal */
    {"1", "+BOLD"},		/* bold on */
    {"2", "+DIM"},		/* dim on */
    {"3", "+ITALIC"},		/* italic on */
    {"4", "+UNDERLINE"},	/* underline on */
    {"5", "+BLINK"},		/* blink on */
    {"6", "+FASTBLINK"},	/* fastblink on */
    {"7", "+REVERSE"},		/* reverse on */
    {"8", "+INVISIBLE"},	/* invisible on */
    {"9", "+DELETED"},		/* deleted on */
    {"10", "MAIN-FONT"},	/* select primary font */
    {"11", "ALT-FONT-1"},	/* select alternate font 1 */
    {"12", "ALT-FONT-2"},	/* select alternate font 2 */
    {"13", "ALT-FONT-3"},	/* select alternate font 3 */
    {"14", "ALT-FONT-4"},	/* select alternate font 4 */
    {"15", "ALT-FONT-5"},	/* select alternate font 5 */
    {"16", "ALT-FONT-6"},	/* select alternate font 6 */
    {"17", "ALT-FONT-7"},	/* select alternate font 7 */
    {"18", "ALT-FONT-1"},	/* select alternate font 1 */
    {"19", "ALT-FONT-1"},	/* select alternate font 1 */
    {"20", "FRAKTUR"},		/* Fraktur font */
    {"21", "DOUBLEUNDER"},	/* double underline */
    {"22", "-DIM"},		/* dim off */
    {"23", "-ITALIC"},		/* italic off */
    {"24", "-UNDERLINE"},	/* underline off */
    {"25", "-BLINK"},		/* blink off */
    {"26", "-FASTBLINK"},	/* fastblink off */
    {"27", "-REVERSE"},		/* reverse off */
    {"28", "-INVISIBLE"},	/* invisible off */
    {"29", "-DELETED"},		/* deleted off */
    {(char *) 0, (char *) 0}
};

static void
analyze_string(const char *name, const char *cap, TERMTYPE * tp)
{
    char buf[MAX_TERMINFO_LENGTH];
    char buf2[MAX_TERMINFO_LENGTH];
    const char *sp, *ep;
    const assoc *ap;

    if (cap == ABSENT_STRING || cap == CANCELLED_STRING)
	return;
    (void) printf("%s: ", name);

    buf[0] = '\0';
    for (sp = cap; *sp; sp++) {
	int i;
	size_t len = 0;
	const char *expansion = 0;

	/* first, check other capabilities in this entry */
	for (i = 0; i < STRCOUNT; i++) {
	    char *cp = tp->Strings[i];

	    /* don't use soft-key capabilities */
	    if (strnames[i][0] == 'k' && strnames[i][0] == 'f')
		continue;

	    if (cp != ABSENT_STRING && cp != CANCELLED_STRING && cp[0] && cp
		!= cap) {
		len = strlen(cp);
		(void) strncpy(buf2, sp, len);
		buf2[len] = '\0';

		if (_nc_capcmp(cp, buf2))
		    continue;

#define ISRS(s)	(!strncmp((s), "is", 2) || !strncmp((s), "rs", 2))
		/*
		 * Theoretically we just passed the test for translation
		 * (equality once the padding is stripped).  However, there
		 * are a few more hoops that need to be jumped so that
		 * identical pairs of initialization and reset strings
		 * don't just refer to each other.
		 */
		if (ISRS(name) || ISRS(strnames[i]))
		    if (cap < cp)
			continue;
#undef ISRS

		expansion = strnames[i];
		break;
	    }
	}

	/* now check the standard capabilities */
	if (!expansion)
	    for (ap = std_caps; ap->from; ap++) {
		len = strlen(ap->from);

		if (strncmp(ap->from, sp, len) == 0) {
		    expansion = ap->to;
		    break;
		}
	    }

	/* now check for private-mode sequences */
	if (!expansion
	    && sp[0] == '\033' && sp[1] == '[' && sp[2] == '?'
	    && (len = strspn(sp + 3, "0123456789;"))
	    && ((sp[3 + len] == 'h') || (sp[3 + len] == 'l'))) {
	    char buf3[MAX_TERMINFO_LENGTH];

	    (void) strcpy(buf2, (sp[3 + len] == 'h') ? "DEC+" : "DEC-");
	    (void) strncpy(buf3, sp + 3, len);
	    len += 4;
	    buf3[len] = '\0';

	    ep = strtok(buf3, ";");
	    do {
		bool found = FALSE;

		for (ap = private_modes; ap->from; ap++) {
		    size_t tlen = strlen(ap->from);

		    if (strncmp(ap->from, ep, tlen) == 0) {
			(void) strcat(buf2, ap->to);
			found = TRUE;
			break;
		    }
		}

		if (!found)
		    (void) strcat(buf2, ep);
		(void) strcat(buf2, ";");
	    } while
		((ep = strtok((char *) 0, ";")));
	    buf2[strlen(buf2) - 1] = '\0';
	    expansion = buf2;
	}

	/* now check for ECMA highlight sequences */
	if (!expansion
	    && sp[0] == '\033' && sp[1] == '['
	    && (len = strspn(sp + 2, "0123456789;"))
	    && sp[2 + len] == 'm') {
	    char buf3[MAX_TERMINFO_LENGTH];

	    (void) strcpy(buf2, "SGR:");
	    (void) strncpy(buf3, sp + 2, len);
	    len += 3;
	    buf3[len] = '\0';

	    ep = strtok(buf3, ";");
	    do {
		bool found = FALSE;

		for (ap = ecma_highlights; ap->from; ap++) {
		    size_t tlen = strlen(ap->from);

		    if (strncmp(ap->from, ep, tlen) == 0) {
			(void) strcat(buf2, ap->to);
			found = TRUE;
			break;
		    }
		}

		if (!found)
		    (void) strcat(buf2, ep);
		(void) strcat(buf2, ";");
	    } while
		((ep = strtok((char *) 0, ";")));

	    buf2[strlen(buf2) - 1] = '\0';
	    expansion = buf2;
	}
	/* now check for scroll region reset */
	if (!expansion) {
	    (void) sprintf(buf2, "\033[1;%dr", tp->Numbers[2]);
	    len = strlen(buf2);
	    if (strncmp(buf2, sp, len) == 0)
		expansion = "RSR";
	}

	/* now check for home-down */
	if (!expansion) {
	    (void) sprintf(buf2, "\033[%d;1H", tp->Numbers[2]);
	    len = strlen(buf2);
	    if (strncmp(buf2, sp, len) == 0)
		expansion = "LL";
	}

	/* now look at the expansion we got, if any */
	if (expansion) {
	    (void) sprintf(buf + strlen(buf), "{%s}", expansion);
	    sp += len - 1;
	    continue;
	} else {
	    /* couldn't match anything */
	    buf2[0] = *sp;
	    buf2[1] = '\0';
	    (void) strcat(buf, TIC_EXPAND(buf2));
	}
    }
    (void) printf("%s\n", buf);
}

/***************************************************************************
 *
 * File comparison
 *
 ***************************************************************************/

static void
file_comparison(int argc, char *argv[])
{
#define MAXCOMPARE	2
    /* someday we may allow comparisons on more files */
    int filecount = 0;
    ENTRY *heads[MAXCOMPARE];
    ENTRY *tails[MAXCOMPARE];
    ENTRY *qp, *rp;
    int i, n;

    dump_init((char *) 0, F_LITERAL, S_TERMINFO, 0, itrace, FALSE);

    for (n = 0; n < argc && n < MAXCOMPARE; n++) {
	if (freopen(argv[n], "r", stdin) == 0)
	    _nc_err_abort("Can't open %s", argv[n]);

	_nc_head = _nc_tail = 0;

	/* parse entries out of the source file */
	_nc_set_source(argv[n]);
	_nc_read_entry_source(stdin, NULL, TRUE, FALSE, NULLHOOK);

	if (itrace)
	    (void) fprintf(stderr, "Resolving file %d...\n", n - 0);

	/* maybe do use resolution */
	if (!_nc_resolve_uses(!limited)) {
	    (void) fprintf(stderr,
		"There are unresolved use entries in %s:\n",
		argv[n]);
	    for_entry_list(qp) {
		if (qp->nuses) {
		    (void) fputs(qp->tterm.term_names, stderr);
		    (void) fputc('\n', stderr);
		}
	    }
	    exit(EXIT_FAILURE);
	}

	heads[filecount] = _nc_head;
	tails[filecount] = _nc_tail;
	filecount++;
    }

    /* OK, all entries are in core.  Ready to do the comparison */
    if (itrace)
	(void) fprintf(stderr, "Entries are now in core...\n");

    /* The entry-matching loop. Sigh, this is intrinsically quadratic. */
    for (qp = heads[0]; qp; qp = qp->next) {
	for (rp = heads[1]; rp; rp = rp->next)
	    if (_nc_entry_match(qp->tterm.term_names, rp->tterm.term_names)) {
		if (qp->ncrosslinks < MAX_CROSSLINKS)
		    qp->crosslinks[qp->ncrosslinks] = rp;
		qp->ncrosslinks++;

		if (rp->ncrosslinks < MAX_CROSSLINKS)
		    rp->crosslinks[rp->ncrosslinks] = qp;
		rp->ncrosslinks++;
	    }
    }

    /* now we have two circular lists with crosslinks */
    if (itrace)
	(void) fprintf(stderr, "Name matches are done...\n");

    for (qp = heads[0]; qp; qp = qp->next) {
	if (qp->ncrosslinks > 1) {
	    (void) fprintf(stderr,
		"%s in file 1 (%s) has %d matches in file 2 (%s):\n",
		_nc_first_name(qp->tterm.term_names),
		argv[0],
		qp->ncrosslinks,
		argv[1]);
	    for (i = 0; i < qp->ncrosslinks; i++)
		(void) fprintf(stderr,
		    "\t%s\n",
		    _nc_first_name((qp->crosslinks[i])->tterm.term_names));
	}
    }

    for (rp = heads[1]; rp; rp = rp->next) {
	if (rp->ncrosslinks > 1) {
	    (void) fprintf(stderr,
		"%s in file 2 (%s) has %d matches in file 1 (%s):\n",
		_nc_first_name(rp->tterm.term_names),
		argv[1],
		rp->ncrosslinks,
		argv[0]);
	    for (i = 0; i < rp->ncrosslinks; i++)
		(void) fprintf(stderr,
		    "\t%s\n",
		    _nc_first_name((rp->crosslinks[i])->tterm.term_names));
	}
    }

    (void) printf("In file 1 (%s) only:\n", argv[0]);
    for (qp = heads[0]; qp; qp = qp->next)
	if (qp->ncrosslinks == 0)
	    (void) printf("\t%s\n",
		_nc_first_name(qp->tterm.term_names));

    (void) printf("In file 2 (%s) only:\n", argv[1]);
    for (rp = heads[1]; rp; rp = rp->next)
	if (rp->ncrosslinks == 0)
	    (void) printf("\t%s\n",
		_nc_first_name(rp->tterm.term_names));

    (void) printf("The following entries are equivalent:\n");
    for (qp = heads[0]; qp; qp = qp->next) {
	rp = qp->crosslinks[0];

	if (qp->ncrosslinks == 1) {
	    rp = qp->crosslinks[0];

	    repair_acsc(&qp->tterm);
	    repair_acsc(&rp->tterm);
#if NCURSES_XNAMES
	    _nc_align_termtype(&qp->tterm, &rp->tterm);
#endif
	    if (entryeq(&qp->tterm, &rp->tterm) && useeq(qp, rp)) {
		char name1[NAMESIZE], name2[NAMESIZE];

		(void) canonical_name(qp->tterm.term_names, name1);
		(void) canonical_name(rp->tterm.term_names, name2);

		(void) printf("%s = %s\n", name1, name2);
	    }
	}
    }

    (void) printf("Differing entries:\n");
    termcount = 2;
    for (qp = heads[0]; qp; qp = qp->next) {

	if (qp->ncrosslinks == 1) {
	    rp = qp->crosslinks[0];
#if NCURSES_XNAMES
	    /* sorry - we have to do this on each pass */
	    _nc_align_termtype(&qp->tterm, &rp->tterm);
#endif
	    if (!(entryeq(&qp->tterm, &rp->tterm) && useeq(qp, rp))) {
		char name1[NAMESIZE], name2[NAMESIZE];

		entries[0] = *qp;
		entries[1] = *rp;

		(void) canonical_name(qp->tterm.term_names, name1);
		(void) canonical_name(rp->tterm.term_names, name2);

		switch (compare) {
		case C_DIFFERENCE:
		    if (itrace)
			(void) fprintf(stderr,
			    "infocmp: dumping differences\n");
		    (void) printf("comparing %s to %s.\n", name1, name2);
		    compare_entry(compare_predicate, &entries->tterm, quiet);
		    break;

		case C_COMMON:
		    if (itrace)
			(void) fprintf(stderr,
			    "infocmp: dumping common capabilities\n");
		    (void) printf("comparing %s to %s.\n", name1, name2);
		    compare_entry(compare_predicate, &entries->tterm, quiet);
		    break;

		case C_NAND:
		    if (itrace)
			(void) fprintf(stderr,
			    "infocmp: dumping differences\n");
		    (void) printf("comparing %s to %s.\n", name1, name2);
		    compare_entry(compare_predicate, &entries->tterm, quiet);
		    break;

		}
	    }
	}
    }
}

static void
usage(void)
{
    static const char *tbl[] =
    {
	"Usage: infocmp [options] [-A directory] [-B directory] [termname...]"
	,""
	,"Options:"
	,"  -1    print single-column"
	,"  -C    use termcap-names"
	,"  -F    compare terminfo-files"
	,"  -I    use terminfo-names"
	,"  -L    use long names"
	,"  -R subset (see manpage)"
	,"  -T    eliminate size limits (test)"
	,"  -V    print version"
#if NCURSES_XNAMES
	,"  -a    with -F, list commented-out caps"
#endif
	,"  -c    list common capabilities"
	,"  -d    list different capabilities"
	,"  -e    format output for C initializer"
	,"  -E    format output as C tables"
	,"  -f    with -1, format complex strings"
	,"  -G    format %{number} to %'char'"
	,"  -g    format %'char' to %{number}"
	,"  -i    analyze initialization/reset"
	,"  -l    output terminfo names"
	,"  -n    list capabilities in neither"
	,"  -p    ignore padding specifiers"
	,"  -q    brief listing, removes headers"
	,"  -r    with -C, output in termcap form"
	,"  -r    with -F, resolve use-references"
	,"  -s [d|i|l|c] sort fields"
	,"  -u    produce source with 'use='"
	,"  -v number  (verbose)"
	,"  -w number  (width)"
    };
    const size_t first = 3;
    const size_t last = sizeof(tbl) / sizeof(tbl[0]);
    const size_t left = (last - first + 1) / 2 + first;
    size_t n;

    for (n = 0; n < left; n++) {
	size_t m = (n < first) ? last : n + left - first;
	if (m < last)
	    fprintf(stderr, "%-40.40s%s\n", tbl[n], tbl[m]);
	else
	    fprintf(stderr, "%s\n", tbl[n]);
    }
    exit(EXIT_FAILURE);
}

static char *
name_initializer(const char *type)
{
    static char *initializer;
    char *s;

    if (initializer == 0)
	initializer = (char *) malloc(strlen(entries->tterm.term_names) + 20);

    (void) sprintf(initializer, "%s_data_%s", type, entries->tterm.term_names);
    for (s = initializer; *s != 0 && *s != '|'; s++) {
	if (!isalnum(*s))
	    *s = '_';
    }
    *s = 0;
    return initializer;
}

/* dump C initializers for the terminal type */
static void
dump_initializers(TERMTYPE * term)
{
    int n;
    const char *str = 0;
    int size;

    (void) printf("static char %s[] = %s\n", name_initializer("bool"), L_CURL);

    for_each_boolean(n, term) {
	switch ((int) (term->Booleans[n])) {
	case TRUE:
	    str = "TRUE";
	    break;

	case FALSE:
	    str = "FALSE";
	    break;

	case ABSENT_BOOLEAN:
	    str = "ABSENT_BOOLEAN";
	    break;

	case CANCELLED_BOOLEAN:
	    str = "CANCELLED_BOOLEAN";
	    break;
	}
	(void) printf("\t/* %3d: %-8s */\t%s,\n",
	    n, ExtBoolname(term, n, boolnames), str);
    }
    (void) printf("%s;\n", R_CURL);

    (void) printf("static short %s[] = %s\n", name_initializer("number"), L_CURL);

    for_each_number(n, term) {
	char buf[BUFSIZ];
	switch (term->Numbers[n]) {
	case ABSENT_NUMERIC:
	    str = "ABSENT_NUMERIC";
	    break;
	case CANCELLED_NUMERIC:
	    str = "CANCELLED_NUMERIC";
	    break;
	default:
	    sprintf(buf, "%d", term->Numbers[n]);
	    str = buf;
	    break;
	}
	(void) printf("\t/* %3d: %-8s */\t%s,\n", n, ExtNumname(term, n,
		numnames), str);
    }
    (void) printf("%s;\n", R_CURL);

    size = sizeof(TERMTYPE)
	+ (NUM_BOOLEANS(term) * sizeof(term->Booleans[0]))
	+ (NUM_NUMBERS(term) * sizeof(term->Numbers[0]));

    (void) printf("static char * %s[] = %s\n", name_initializer("string"), L_CURL);

    for_each_string(n, term) {
	char buf[MAX_STRING], *sp, *tp;

	if (term->Strings[n] == ABSENT_STRING)
	    str = "ABSENT_STRING";
	else if (term->Strings[n] == CANCELLED_STRING)
	    str = "CANCELLED_STRING";
	else {
	    tp = buf;
	    *tp++ = '"';
	    for (sp = term->Strings[n];
		*sp != 0 && (tp - buf) < MAX_STRING - 6;
		sp++) {
		if (isascii(*sp) && isprint(*sp) && *sp != '\\' && *sp != '"')
		    *tp++ = *sp;
		else {
		    (void) sprintf(tp, "\\%03o", *sp & 0xff);
		    tp += 4;
		}
	    }
	    *tp++ = '"';
	    *tp = '\0';
	    size += (strlen(term->Strings[n]) + 1);
	    str = buf;
	}
#if NCURSES_XNAMES
	if (n == STRCOUNT) {
	    (void) printf("%s;\n", R_CURL);

	    (void) printf("static char * %s[] = %s\n",
		name_initializer("string_ext"), L_CURL);
	}
#endif
	(void) printf("\t/* %3d: %-8s */\t%s,\n", n, ExtStrname(term, n,
		strnames), str);
    }
    (void) printf("%s;\n", R_CURL);
}

/* dump C initializers for the terminal type */
static void
dump_termtype(TERMTYPE * term)
{
    (void) printf("\t%s\n\t\t\"%s\",\n", L_CURL, term->term_names);
    (void) printf("\t\t(char *)0,\t/* pointer to string table */\n");

    (void) printf("\t\t%s,\n", name_initializer("bool"));
    (void) printf("\t\t%s,\n", name_initializer("number"));

    (void) printf("\t\t%s,\n", name_initializer("string"));

#if NCURSES_XNAMES
    (void) printf("#if NCURSES_XNAMES\n");
    (void) printf("\t\t(char *)0,\t/* pointer to extended string table */\n");
    (void) printf("\t\t%s,\t/* ...corresponding names */\n",
	(NUM_STRINGS(term) != STRCOUNT)
	? name_initializer("string_ext")
	: "(char **)0");

    (void) printf("\t\t%d,\t\t/* count total Booleans */\n", NUM_BOOLEANS(term));
    (void) printf("\t\t%d,\t\t/* count total Numbers */\n", NUM_NUMBERS(term));
    (void) printf("\t\t%d,\t\t/* count total Strings */\n", NUM_STRINGS(term));

    (void) printf("\t\t%d,\t\t/* count extensions to Booleans */\n",
	NUM_BOOLEANS(term) - BOOLCOUNT);
    (void) printf("\t\t%d,\t\t/* count extensions to Numbers */\n",
	NUM_NUMBERS(term) - NUMCOUNT);
    (void) printf("\t\t%d,\t\t/* count extensions to Strings */\n",
	NUM_STRINGS(term) - STRCOUNT);

    (void) printf("#endif /* NCURSES_XNAMES */\n");
#endif /* NCURSES_XNAMES */
    (void) printf("\t%s\n", R_CURL);
}

/***************************************************************************
 *
 * Main sequence
 *
 ***************************************************************************/

int
main(int argc, char *argv[])
{
    char *terminal, *firstdir, *restdir;
    /* Avoid "local data >32k" error with mwcc */
    /* Also avoid overflowing smaller stacks on systems like AmigaOS */
    path *tfile = (path *) malloc(sizeof(path) * MAXTERMS);
    int c, i, len;
    bool formatted = FALSE;
    bool filecompare = FALSE;
    int initdump = 0;
    bool init_analyze = FALSE;

    if ((terminal = getenv("TERM")) == 0) {
	(void) fprintf(stderr,
	    "infocmp: environment variable TERM not set\n");
	return EXIT_FAILURE;
    }

    /* where is the terminfo database location going to default to? */
    restdir = firstdir = 0;

    while ((c = getopt(argc, argv, "adeEcCfFGgIinlLpqrR:s:uv:Vw:A:B:1T")) != EOF)
	switch (c) {
#if NCURSES_XNAMES
	case 'a':
	    _nc_disable_period = TRUE;
	    use_extended_names(TRUE);
	    break;
#endif
	case 'd':
	    compare = C_DIFFERENCE;
	    break;

	case 'e':
	    initdump |= 1;
	    break;

	case 'E':
	    initdump |= 2;
	    break;

	case 'c':
	    compare = C_COMMON;
	    break;

	case 'C':
	    outform = F_TERMCAP;
	    tversion = "BSD";
	    if (sortmode == S_DEFAULT)
		sortmode = S_TERMCAP;
	    break;

	case 'f':
	    formatted = TRUE;
	    break;

	case 'G':
	    numbers = 1;
	    break;

	case 'g':
	    numbers = -1;
	    break;

	case 'F':
	    filecompare = TRUE;
	    break;

	case 'I':
	    outform = F_TERMINFO;
	    if (sortmode == S_DEFAULT)
		sortmode = S_VARIABLE;
	    tversion = 0;
	    break;

	case 'i':
	    init_analyze = TRUE;
	    break;

	case 'l':
	    outform = F_TERMINFO;
	    break;

	case 'L':
	    outform = F_VARIABLE;
	    if (sortmode == S_DEFAULT)
		sortmode = S_VARIABLE;
	    break;

	case 'n':
	    compare = C_NAND;
	    break;

	case 'p':
	    ignorepads = TRUE;
	    break;

	case 'q':
	    quiet = TRUE;
	    s_absent = "-";
	    s_cancel = "@";
	    bool_sep = ", ";
	    break;

	case 'r':
	    tversion = 0;
	    limited = FALSE;
	    break;

	case 'R':
	    tversion = optarg;
	    break;

	case 's':
	    if (*optarg == 'd')
		sortmode = S_NOSORT;
	    else if (*optarg == 'i')
		sortmode = S_TERMINFO;
	    else if (*optarg == 'l')
		sortmode = S_VARIABLE;
	    else if (*optarg == 'c')
		sortmode = S_TERMCAP;
	    else {
		(void) fprintf(stderr,
		    "infocmp: unknown sort mode\n");
		return EXIT_FAILURE;
	    }
	    break;

	case 'u':
	    compare = C_USEALL;
	    break;

	case 'v':
	    itrace = atoi(optarg);
	    set_trace_level(itrace);
	    break;

	case 'V':
	    (void) fputs(NCURSES_VERSION, stdout);
	    putchar('\n');
	    ExitProgram(EXIT_SUCCESS);

	case 'w':
	    mwidth = atoi(optarg);
	    break;

	case 'A':
	    firstdir = optarg;
	    break;

	case 'B':
	    restdir = optarg;
	    break;

	case '1':
	    mwidth = 0;
	    break;

	case 'T':
	    limited = FALSE;
	    break;
	default:
	    usage();
	}

    /* by default, sort by terminfo name */
    if (sortmode == S_DEFAULT)
	sortmode = S_TERMINFO;

    /* set up for display */
    dump_init(tversion, outform, sortmode, mwidth, itrace, formatted);

    /* make sure we have at least one terminal name to work with */
    if (optind >= argc)
	argv[argc++] = terminal;

    /* if user is after a comparison, make sure we have two entries */
    if (compare != C_DEFAULT && optind >= argc - 1)
	argv[argc++] = terminal;

    /* exactly two terminal names with no options means do -d */
    if (argc - optind == 2 && compare == C_DEFAULT)
	compare = C_DIFFERENCE;

    if (!filecompare) {
	/* grab the entries */
	termcount = 0;
	for (; optind < argc; optind++) {
	    if (termcount >= MAXTERMS) {
		(void) fprintf(stderr,
		    "infocmp: too many terminal type arguments\n");
		return EXIT_FAILURE;
	    } else {
		const char *directory = termcount ? restdir : firstdir;
		int status;

		tname[termcount] = argv[optind];

		if (directory) {
		    (void) sprintf(tfile[termcount], "%s/%c/%s",
			directory,
			*argv[optind], argv[optind]);
		    if (itrace)
			(void) fprintf(stderr,
			    "infocmp: reading entry %s from file %s\n",
			    argv[optind], tfile[termcount]);

		    status = _nc_read_file_entry(tfile[termcount],
			&entries[termcount].tterm);
		} else {
		    if (itrace)
			(void) fprintf(stderr,
			    "infocmp: reading entry %s from system directories %s\n",
			    argv[optind], tname[termcount]);

		    status = _nc_read_entry(tname[termcount],
			tfile[termcount],
			&entries[termcount].tterm);
		    directory = TERMINFO;	/* for error message */
		}

		if (status <= 0) {
		    (void) fprintf(stderr,
			"infocmp: couldn't open terminfo file %s.\n",
			tfile[termcount]);
		    return EXIT_FAILURE;
		}
		repair_acsc(&entries[termcount].tterm);
		termcount++;
	    }
	}

#if NCURSES_XNAMES
	if (termcount > 1)
	    _nc_align_termtype(&entries[0].tterm, &entries[1].tterm);
#endif

	/* dump as C initializer for the terminal type */
	if (initdump) {
	    if (initdump & 1)
		dump_termtype(&entries[0].tterm);
	    if (initdump & 2)
		dump_initializers(&entries[0].tterm);
	    ExitProgram(EXIT_SUCCESS);
	}

	/* analyze the init strings */
	if (init_analyze) {
#undef CUR
#define CUR	entries[0].tterm.
	    analyze_string("is1", init_1string, &entries[0].tterm);
	    analyze_string("is2", init_2string, &entries[0].tterm);
	    analyze_string("is3", init_3string, &entries[0].tterm);
	    analyze_string("rs1", reset_1string, &entries[0].tterm);
	    analyze_string("rs2", reset_2string, &entries[0].tterm);
	    analyze_string("rs3", reset_3string, &entries[0].tterm);
	    analyze_string("smcup", enter_ca_mode, &entries[0].tterm);
	    analyze_string("rmcup", exit_ca_mode, &entries[0].tterm);
#undef CUR
	    ExitProgram(EXIT_SUCCESS);
	}

	/*
	 * Here's where the real work gets done
	 */
	switch (compare) {
	case C_DEFAULT:
	    if (itrace)
		(void) fprintf(stderr,
		    "infocmp: about to dump %s\n",
		    tname[0]);
	    (void) printf("#\tReconstructed via infocmp from file: %s\n",
		tfile[0]);
	    len = dump_entry(&entries[0].tterm, limited, numbers, NULL);
	    putchar('\n');
	    if (itrace)
		(void) fprintf(stderr, "infocmp: length %d\n", len);
	    break;

	case C_DIFFERENCE:
	    if (itrace)
		(void) fprintf(stderr, "infocmp: dumping differences\n");
	    (void) printf("comparing %s to %s.\n", tname[0], tname[1]);
	    compare_entry(compare_predicate, &entries->tterm, quiet);
	    break;

	case C_COMMON:
	    if (itrace)
		(void) fprintf(stderr,
		    "infocmp: dumping common capabilities\n");
	    (void) printf("comparing %s to %s.\n", tname[0], tname[1]);
	    compare_entry(compare_predicate, &entries->tterm, quiet);
	    break;

	case C_NAND:
	    if (itrace)
		(void) fprintf(stderr,
		    "infocmp: dumping differences\n");
	    (void) printf("comparing %s to %s.\n", tname[0], tname[1]);
	    compare_entry(compare_predicate, &entries->tterm, quiet);
	    break;

	case C_USEALL:
	    if (itrace)
		(void) fprintf(stderr, "infocmp: dumping use entry\n");
	    len = dump_entry(&entries[0].tterm, limited, numbers, use_predicate);
	    for (i = 1; i < termcount; i++)
		len += dump_uses(tname[i], !(outform == F_TERMCAP || outform
			== F_TCONVERR));
	    putchar('\n');
	    if (itrace)
		(void) fprintf(stderr, "infocmp: length %d\n", len);
	    break;
	}
    } else if (compare == C_USEALL)
	(void) fprintf(stderr, "Sorry, -u doesn't work with -F\n");
    else if (compare == C_DEFAULT)
	(void) fprintf(stderr, "Use `tic -[CI] <file>' for this.\n");
    else if (argc - optind != 2)
	(void) fprintf(stderr,
	    "File comparison needs exactly two file arguments.\n");
    else
	file_comparison(argc - optind, argv + optind);

    ExitProgram(EXIT_SUCCESS);
}

/* infocmp.c ends here */