1 /****************************************************************************
2  * Copyright (c) 1998-2014,2015 Free Software Foundation, Inc.              *
3  *                                                                          *
4  * Permission is hereby granted, free of charge, to any person obtaining a  *
5  * copy of this software and associated documentation files (the            *
6  * "Software"), to deal in the Software without restriction, including      *
7  * without limitation the rights to use, copy, modify, merge, publish,      *
8  * distribute, distribute with modifications, sublicense, and/or sell       *
9  * copies of the Software, and to permit persons to whom the Software is    *
10  * furnished to do so, subject to the following conditions:                 *
11  *                                                                          *
12  * The above copyright notice and this permission notice shall be included  *
13  * in all copies or substantial portions of the Software.                   *
14  *                                                                          *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
16  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
18  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
21  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
22  *                                                                          *
23  * Except as contained in this notice, the name(s) of the above copyright   *
24  * holders shall not be used in advertising or otherwise to promote the     *
25  * sale, use or other dealings in this Software without prior written       *
26  * authorization.                                                           *
27  ****************************************************************************/
28 
29 /****************************************************************************
30  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
31  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
32  *     and: Thomas E. Dickey                        1996 on                 *
33  ****************************************************************************/
34 
35 #define __INTERNAL_CAPS_VISIBLE
36 #include <progs.priv.h>
37 
38 #include "dump_entry.h"
39 #include "termsort.c"		/* this C file is generated */
40 #include <parametrized.h>	/* so is this */
41 
42 MODULE_ID("$Id: dump_entry.c,v 1.124 2015/11/28 22:54:33 tom Exp $")
43 
44 #define DISCARD(string) string = ABSENT_STRING
45 #define PRINTF (void) printf
46 
47 #define OkIndex(index,array) ((int)(index) >= 0 && (int)(index) < (int) SIZEOF(array))
48 
49 typedef struct {
50     char *text;
51     size_t used;
52     size_t size;
53 } DYNBUF;
54 
55 static int tversion;		/* terminfo version */
56 static int outform;		/* output format to use */
57 static int sortmode;		/* sort mode to use */
58 static int width = 60;		/* max line width for listings */
59 static int height = 65535;	/* max number of lines for listings */
60 static int column;		/* current column, limited by 'width' */
61 static int oldcol;		/* last value of column before wrap */
62 static bool pretty;		/* true if we format if-then-else strings */
63 static bool checking;		/* true if we are checking for tic */
64 static int quickdump;		/* true if we are dumping compiled data */
65 
66 static char *save_sgr;
67 
68 static DYNBUF outbuf;
69 static DYNBUF tmpbuf;
70 
71 /* indirection pointers for implementing sort and display modes */
72 static const PredIdx *bool_indirect, *num_indirect, *str_indirect;
73 static NCURSES_CONST char *const *bool_names;
74 static NCURSES_CONST char *const *num_names;
75 static NCURSES_CONST char *const *str_names;
76 
77 static const char *separator = "", *trailer = "";
78 static int indent = 8;
79 
80 /* cover various ports and variants of terminfo */
81 #define V_ALLCAPS	0	/* all capabilities (SVr4, XSI, ncurses) */
82 #define V_SVR1		1	/* SVR1, Ultrix */
83 #define V_HPUX		2	/* HP/UX */
84 #define V_AIX		3	/* AIX */
85 #define V_BSD		4	/* BSD */
86 
87 #if NCURSES_XNAMES
88 #define OBSOLETE(n) (!_nc_user_definable && (n[0] == 'O' && n[1] == 'T'))
89 #else
90 #define OBSOLETE(n) (n[0] == 'O' && n[1] == 'T')
91 #endif
92 
93 #define isObsolete(f,n) ((f == F_TERMINFO || f == F_VARIABLE) && OBSOLETE(n))
94 
95 #if NCURSES_XNAMES
96 #define BoolIndirect(j) ((j >= BOOLCOUNT) ? (j) : ((sortmode == S_NOSORT) ? j : bool_indirect[j]))
97 #define NumIndirect(j)  ((j >= NUMCOUNT)  ? (j) : ((sortmode == S_NOSORT) ? j : num_indirect[j]))
98 #define StrIndirect(j)  ((j >= STRCOUNT)  ? (j) : ((sortmode == S_NOSORT) ? j : str_indirect[j]))
99 #else
100 #define BoolIndirect(j) ((sortmode == S_NOSORT) ? (j) : bool_indirect[j])
101 #define NumIndirect(j)  ((sortmode == S_NOSORT) ? (j) : num_indirect[j])
102 #define StrIndirect(j)  ((sortmode == S_NOSORT) ? (j) : str_indirect[j])
103 #endif
104 
105 static void failed(const char *) GCC_NORETURN;
106 
107 static void
108 failed(const char *s)
109 {
110     perror(s);
111     ExitProgram(EXIT_FAILURE);
112 }
113 
114 static void
115 strncpy_DYN(DYNBUF * dst, const char *src, size_t need)
116 {
117     size_t want = need + dst->used + 1;
118     if (want > dst->size) {
119 	dst->size += (want + 1024);	/* be generous */
120 	dst->text = typeRealloc(char, dst->size, dst->text);
121 	if (dst->text == 0)
122 	    failed("strncpy_DYN");
123     }
124     (void) strncpy(dst->text + dst->used, src, need);
125     dst->used += need;
126     dst->text[dst->used] = 0;
127 }
128 
129 static void
130 strcpy_DYN(DYNBUF * dst, const char *src)
131 {
132     if (src == 0) {
133 	dst->used = 0;
134 	strcpy_DYN(dst, "");
135     } else {
136 	strncpy_DYN(dst, src, strlen(src));
137     }
138 }
139 
140 #if NO_LEAKS
141 static void
142 free_DYN(DYNBUF * p)
143 {
144     if (p->text != 0)
145 	free(p->text);
146     p->text = 0;
147     p->size = 0;
148     p->used = 0;
149 }
150 
151 void
152 _nc_leaks_dump_entry(void)
153 {
154     free_DYN(&outbuf);
155     free_DYN(&tmpbuf);
156 }
157 #endif
158 
159 #define NameTrans(check,result) \
160 	    if ((np->nte_index <= OK_ ## check) \
161 		&& check[np->nte_index]) \
162 		return (result[np->nte_index])
163 
164 NCURSES_CONST char *
165 nametrans(const char *name)
166 /* translate a capability name to termcap from terminfo */
167 {
168     const struct name_table_entry *np;
169 
170     if ((np = _nc_find_entry(name, _nc_get_hash_table(0))) != 0) {
171 	switch (np->nte_type) {
172 	case BOOLEAN:
173 	    NameTrans(bool_from_termcap, boolcodes);
174 	    break;
175 
176 	case NUMBER:
177 	    NameTrans(num_from_termcap, numcodes);
178 	    break;
179 
180 	case STRING:
181 	    NameTrans(str_from_termcap, strcodes);
182 	    break;
183 	}
184     }
185 
186     return (0);
187 }
188 
189 void
190 dump_init(const char *version,
191 	  int mode,
192 	  int sort,
193 	  int twidth,
194 	  int theight,
195 	  unsigned traceval,
196 	  bool formatted,
197 	  bool check,
198 	  int quick)
199 /* set up for entry display */
200 {
201     width = twidth;
202     height = theight;
203     pretty = formatted;
204     checking = check;
205     quickdump = (quick & 3);
206 
207     /* versions */
208     if (version == 0)
209 	tversion = V_ALLCAPS;
210     else if (!strcmp(version, "SVr1") || !strcmp(version, "SVR1")
211 	     || !strcmp(version, "Ultrix"))
212 	tversion = V_SVR1;
213     else if (!strcmp(version, "HP"))
214 	tversion = V_HPUX;
215     else if (!strcmp(version, "AIX"))
216 	tversion = V_AIX;
217     else if (!strcmp(version, "BSD"))
218 	tversion = V_BSD;
219     else
220 	tversion = V_ALLCAPS;
221 
222     /* implement display modes */
223     switch (outform = mode) {
224     case F_LITERAL:
225     case F_TERMINFO:
226 	bool_names = boolnames;
227 	num_names = numnames;
228 	str_names = strnames;
229 	separator = (twidth > 0 && theight > 1) ? ", " : ",";
230 	trailer = "\n\t";
231 	break;
232 
233     case F_VARIABLE:
234 	bool_names = boolfnames;
235 	num_names = numfnames;
236 	str_names = strfnames;
237 	separator = (twidth > 0 && theight > 1) ? ", " : ",";
238 	trailer = "\n\t";
239 	break;
240 
241     case F_TERMCAP:
242     case F_TCONVERR:
243 	bool_names = boolcodes;
244 	num_names = numcodes;
245 	str_names = strcodes;
246 	separator = ":";
247 	trailer = "\\\n\t:";
248 	break;
249     }
250     indent = 8;
251 
252     /* implement sort modes */
253     switch (sortmode = sort) {
254     case S_NOSORT:
255 	if (traceval)
256 	    (void) fprintf(stderr,
257 			   "%s: sorting by term structure order\n", _nc_progname);
258 	break;
259 
260     case S_TERMINFO:
261 	if (traceval)
262 	    (void) fprintf(stderr,
263 			   "%s: sorting by terminfo name order\n", _nc_progname);
264 	bool_indirect = bool_terminfo_sort;
265 	num_indirect = num_terminfo_sort;
266 	str_indirect = str_terminfo_sort;
267 	break;
268 
269     case S_VARIABLE:
270 	if (traceval)
271 	    (void) fprintf(stderr,
272 			   "%s: sorting by C variable order\n", _nc_progname);
273 	bool_indirect = bool_variable_sort;
274 	num_indirect = num_variable_sort;
275 	str_indirect = str_variable_sort;
276 	break;
277 
278     case S_TERMCAP:
279 	if (traceval)
280 	    (void) fprintf(stderr,
281 			   "%s: sorting by termcap name order\n", _nc_progname);
282 	bool_indirect = bool_termcap_sort;
283 	num_indirect = num_termcap_sort;
284 	str_indirect = str_termcap_sort;
285 	break;
286     }
287 
288     if (traceval)
289 	(void) fprintf(stderr,
290 		       "%s: width = %d, tversion = %d, outform = %d\n",
291 		       _nc_progname, width, tversion, outform);
292 }
293 
294 static TERMTYPE *cur_type;
295 
296 static int
297 dump_predicate(PredType type, PredIdx idx)
298 /* predicate function to use for ordinary decompilation */
299 {
300     switch (type) {
301     case BOOLEAN:
302 	return (cur_type->Booleans[idx] == FALSE)
303 	    ? FAIL : cur_type->Booleans[idx];
304 
305     case NUMBER:
306 	return (cur_type->Numbers[idx] == ABSENT_NUMERIC)
307 	    ? FAIL : cur_type->Numbers[idx];
308 
309     case STRING:
310 	return (cur_type->Strings[idx] != ABSENT_STRING)
311 	    ? (int) TRUE : FAIL;
312     }
313 
314     return (FALSE);		/* pacify compiler */
315 }
316 
317 static void set_obsolete_termcaps(TERMTYPE *tp);
318 
319 /* is this the index of a function key string? */
320 #define FNKEY(i) \
321     (((i) >= STR_IDX(key_f0) && \
322       (i) <= STR_IDX(key_f9)) || \
323      ((i) >= STR_IDX(key_f11) && \
324       (i) <= STR_IDX(key_f63)))
325 
326 /*
327  * If we configure with a different Caps file, the offsets into the arrays
328  * will change.  So we use an address expression.
329  */
330 #define BOOL_IDX(name) (PredType) (&(name) - &(CUR Booleans[0]))
331 #define NUM_IDX(name)  (PredType) (&(name) - &(CUR Numbers[0]))
332 #define STR_IDX(name)  (PredType) (&(name) - &(CUR Strings[0]))
333 
334 static bool
335 version_filter(PredType type, PredIdx idx)
336 /* filter out capabilities we may want to suppress */
337 {
338     switch (tversion) {
339     case V_ALLCAPS:		/* SVr4, XSI Curses */
340 	return (TRUE);
341 
342     case V_SVR1:		/* System V Release 1, Ultrix */
343 	switch (type) {
344 	case BOOLEAN:
345 	    return ((idx <= BOOL_IDX(xon_xoff)) ? TRUE : FALSE);
346 	case NUMBER:
347 	    return ((idx <= NUM_IDX(width_status_line)) ? TRUE : FALSE);
348 	case STRING:
349 	    return ((idx <= STR_IDX(prtr_non)) ? TRUE : FALSE);
350 	}
351 	break;
352 
353     case V_HPUX:		/* Hewlett-Packard */
354 	switch (type) {
355 	case BOOLEAN:
356 	    return ((idx <= BOOL_IDX(xon_xoff)) ? TRUE : FALSE);
357 	case NUMBER:
358 	    return ((idx <= NUM_IDX(label_width)) ? TRUE : FALSE);
359 	case STRING:
360 	    if (idx <= STR_IDX(prtr_non))
361 		return (TRUE);
362 	    else if (FNKEY(idx))	/* function keys */
363 		return (TRUE);
364 	    else if (idx == STR_IDX(plab_norm)
365 		     || idx == STR_IDX(label_on)
366 		     || idx == STR_IDX(label_off))
367 		return (TRUE);
368 	    else
369 		return (FALSE);
370 	}
371 	break;
372 
373     case V_AIX:		/* AIX */
374 	switch (type) {
375 	case BOOLEAN:
376 	    return ((idx <= BOOL_IDX(xon_xoff)) ? TRUE : FALSE);
377 	case NUMBER:
378 	    return ((idx <= NUM_IDX(width_status_line)) ? TRUE : FALSE);
379 	case STRING:
380 	    if (idx <= STR_IDX(prtr_non))
381 		return (TRUE);
382 	    else if (FNKEY(idx))	/* function keys */
383 		return (TRUE);
384 	    else
385 		return (FALSE);
386 	}
387 	break;
388 
389 #define is_termcap(type) (OkIndex(idx, type##_from_termcap) && \
390 			  type##_from_termcap[idx])
391 
392     case V_BSD:		/* BSD */
393 	switch (type) {
394 	case BOOLEAN:
395 	    return is_termcap(bool);
396 	case NUMBER:
397 	    return is_termcap(num);
398 	case STRING:
399 	    return is_termcap(str);
400 	}
401 	break;
402     }
403 
404     return (FALSE);		/* pacify the compiler */
405 }
406 
407 static void
408 trim_trailing(void)
409 {
410     while (outbuf.used > 0 && outbuf.text[outbuf.used - 1] == ' ')
411 	outbuf.text[--outbuf.used] = '\0';
412 }
413 
414 static void
415 force_wrap(void)
416 {
417     oldcol = column;
418     trim_trailing();
419     strcpy_DYN(&outbuf, trailer);
420     column = indent;
421 }
422 
423 static void
424 wrap_concat(const char *src)
425 {
426     size_t need = strlen(src);
427     size_t want = strlen(separator) + need;
428 
429     if (column > indent
430 	&& column + (int) want > width) {
431 	force_wrap();
432     }
433     strcpy_DYN(&outbuf, src);
434     strcpy_DYN(&outbuf, separator);
435     column += (int) need;
436 }
437 
438 #define IGNORE_SEP_TRAIL(first,last,sep_trail) \
439 	if ((size_t)(last - first) > sizeof(sep_trail)-1 \
440 	 && !strncmp(first, sep_trail, sizeof(sep_trail)-1)) \
441 		first += sizeof(sep_trail)-2
442 
443 /* Returns the nominal length of the buffer assuming it is termcap format,
444  * i.e., the continuation sequence is treated as a single character ":".
445  *
446  * There are several implementations of termcap which read the text into a
447  * fixed-size buffer.  Generally they strip the newlines from the text, but may
448  * not do it until after the buffer is read.  Also, "tc=" resolution may be
449  * expanded in the same buffer.  This function is useful for measuring the size
450  * of the best fixed-buffer implementation; the worst case may be much worse.
451  */
452 #ifdef TEST_TERMCAP_LENGTH
453 static int
454 termcap_length(const char *src)
455 {
456     static const char pattern[] = ":\\\n\t:";
457 
458     int len = 0;
459     const char *const t = src + strlen(src);
460 
461     while (*src != '\0') {
462 	IGNORE_SEP_TRAIL(src, t, pattern);
463 	src++;
464 	len++;
465     }
466     return len;
467 }
468 #else
469 #define termcap_length(src) strlen(src)
470 #endif
471 
472 static void
473 indent_DYN(DYNBUF * buffer, int level)
474 {
475     int n;
476 
477     for (n = 0; n < level; n++)
478 	strncpy_DYN(buffer, "\t", (size_t) 1);
479 }
480 
481 bool
482 has_params(const char *src)
483 {
484     bool result = FALSE;
485     int len = (int) strlen(src);
486     int n;
487     bool ifthen = FALSE;
488     bool params = FALSE;
489 
490     for (n = 0; n < len - 1; ++n) {
491 	if (!strncmp(src + n, "%p", (size_t) 2)) {
492 	    params = TRUE;
493 	} else if (!strncmp(src + n, "%;", (size_t) 2)) {
494 	    ifthen = TRUE;
495 	    result = params;
496 	    break;
497 	}
498     }
499     if (!ifthen) {
500 	result = ((len > 50) && params);
501     }
502     return result;
503 }
504 
505 static char *
506 fmt_complex(TERMTYPE *tterm, const char *capability, char *src, int level)
507 {
508     bool percent = FALSE;
509     bool params = has_params(src);
510 
511     while (*src != '\0') {
512 	switch (*src) {
513 	case '^':
514 	    percent = FALSE;
515 	    strncpy_DYN(&tmpbuf, src++, (size_t) 1);
516 	    break;
517 	case '\\':
518 	    percent = FALSE;
519 	    strncpy_DYN(&tmpbuf, src++, (size_t) 1);
520 	    break;
521 	case '%':
522 	    percent = TRUE;
523 	    break;
524 	case '?':		/* "if" */
525 	case 't':		/* "then" */
526 	case 'e':		/* "else" */
527 	    if (percent) {
528 		percent = FALSE;
529 		tmpbuf.text[tmpbuf.used - 1] = '\n';
530 		/* treat a "%e" as else-if, on the same level */
531 		if (*src == 'e') {
532 		    indent_DYN(&tmpbuf, level);
533 		    strncpy_DYN(&tmpbuf, "%", (size_t) 1);
534 		    strncpy_DYN(&tmpbuf, src, (size_t) 1);
535 		    src++;
536 		    params = has_params(src);
537 		    if (!params && *src != '\0' && *src != '%') {
538 			strncpy_DYN(&tmpbuf, "\n", (size_t) 1);
539 			indent_DYN(&tmpbuf, level + 1);
540 		    }
541 		} else {
542 		    indent_DYN(&tmpbuf, level + 1);
543 		    strncpy_DYN(&tmpbuf, "%", (size_t) 1);
544 		    strncpy_DYN(&tmpbuf, src, (size_t) 1);
545 		    if (*src++ == '?') {
546 			src = fmt_complex(tterm, capability, src, level + 1);
547 			if (*src != '\0' && *src != '%') {
548 			    strncpy_DYN(&tmpbuf, "\n", (size_t) 1);
549 			    indent_DYN(&tmpbuf, level + 1);
550 			}
551 		    } else if (level == 1) {
552 			if (checking)
553 			    _nc_warning("%s: %%%c without %%? in %s",
554 					_nc_first_name(tterm->term_names),
555 					*src, capability);
556 		    }
557 		}
558 		continue;
559 	    }
560 	    break;
561 	case ';':		/* "endif" */
562 	    if (percent) {
563 		percent = FALSE;
564 		if (level > 1) {
565 		    tmpbuf.text[tmpbuf.used - 1] = '\n';
566 		    indent_DYN(&tmpbuf, level);
567 		    strncpy_DYN(&tmpbuf, "%", (size_t) 1);
568 		    strncpy_DYN(&tmpbuf, src++, (size_t) 1);
569 		    if (src[0] == '%'
570 			&& src[1] != '\0'
571 			&& (strchr("?e;", src[1])) == 0) {
572 			tmpbuf.text[tmpbuf.used++] = '\n';
573 			indent_DYN(&tmpbuf, level);
574 		    }
575 		    return src;
576 		}
577 		if (checking)
578 		    _nc_warning("%s: %%; without %%? in %s",
579 				_nc_first_name(tterm->term_names),
580 				capability);
581 	    }
582 	    break;
583 	case 'p':
584 	    if (percent && params) {
585 		tmpbuf.text[tmpbuf.used - 1] = '\n';
586 		indent_DYN(&tmpbuf, level + 1);
587 		strncpy_DYN(&tmpbuf, "%", (size_t) 1);
588 	    }
589 	    params = FALSE;
590 	    percent = FALSE;
591 	    break;
592 	case ' ':
593 	    strncpy_DYN(&tmpbuf, "\\s", (size_t) 2);
594 	    ++src;
595 	    continue;
596 	default:
597 	    percent = FALSE;
598 	    break;
599 	}
600 	strncpy_DYN(&tmpbuf, src++, (size_t) 1);
601     }
602     return src;
603 }
604 
605 #define SAME_CAP(n,cap) (&tterm->Strings[n] == &cap)
606 #define EXTRA_CAP 20
607 
608 int
609 fmt_entry(TERMTYPE *tterm,
610 	  PredFunc pred,
611 	  int content_only,
612 	  int suppress_untranslatable,
613 	  int infodump,
614 	  int numbers)
615 {
616     PredIdx i, j;
617     char buffer[MAX_TERMINFO_LENGTH + EXTRA_CAP];
618     char *capability;
619     NCURSES_CONST char *name;
620     int predval, len;
621     PredIdx num_bools = 0;
622     PredIdx num_values = 0;
623     PredIdx num_strings = 0;
624     bool outcount = 0;
625 
626 #define WRAP_CONCAT	\
627 	wrap_concat(buffer); \
628 	outcount = TRUE
629 
630     len = 12;			/* terminfo file-header */
631 
632     if (pred == 0) {
633 	cur_type = tterm;
634 	pred = dump_predicate;
635     }
636 
637     strcpy_DYN(&outbuf, 0);
638     if (content_only) {
639 	column = indent;	/* FIXME: workaround to prevent empty lines */
640     } else {
641 	strcpy_DYN(&outbuf, tterm->term_names);
642 
643 	/*
644 	 * Colon is legal in terminfo descriptions, but not in termcap.
645 	 */
646 	if (!infodump) {
647 	    char *p = outbuf.text;
648 	    while (*p) {
649 		if (*p == ':') {
650 		    *p = '=';
651 		}
652 		++p;
653 	    }
654 	}
655 	strcpy_DYN(&outbuf, separator);
656 	column = (int) outbuf.used;
657 	if (height > 1)
658 	    force_wrap();
659     }
660 
661     for_each_boolean(j, tterm) {
662 	i = BoolIndirect(j);
663 	name = ExtBoolname(tterm, (int) i, bool_names);
664 	assert(strlen(name) < sizeof(buffer) - EXTRA_CAP);
665 
666 	if (!version_filter(BOOLEAN, i))
667 	    continue;
668 	else if (isObsolete(outform, name))
669 	    continue;
670 
671 	predval = pred(BOOLEAN, i);
672 	if (predval != FAIL) {
673 	    _nc_STRCPY(buffer, name, sizeof(buffer));
674 	    if (predval <= 0)
675 		_nc_STRCAT(buffer, "@", sizeof(buffer));
676 	    else if (i + 1 > num_bools)
677 		num_bools = i + 1;
678 	    WRAP_CONCAT;
679 	}
680     }
681 
682     if (column != indent && height > 1)
683 	force_wrap();
684 
685     for_each_number(j, tterm) {
686 	i = NumIndirect(j);
687 	name = ExtNumname(tterm, (int) i, num_names);
688 	assert(strlen(name) < sizeof(buffer) - EXTRA_CAP);
689 
690 	if (!version_filter(NUMBER, i))
691 	    continue;
692 	else if (isObsolete(outform, name))
693 	    continue;
694 
695 	predval = pred(NUMBER, i);
696 	if (predval != FAIL) {
697 	    if (tterm->Numbers[i] < 0) {
698 		_nc_SPRINTF(buffer, _nc_SLIMIT(sizeof(buffer))
699 			    "%s@", name);
700 	    } else {
701 		_nc_SPRINTF(buffer, _nc_SLIMIT(sizeof(buffer))
702 			    "%s#%d", name, tterm->Numbers[i]);
703 		if (i + 1 > num_values)
704 		    num_values = i + 1;
705 	    }
706 	    WRAP_CONCAT;
707 	}
708     }
709 
710     if (column != indent && height > 1)
711 	force_wrap();
712 
713     len += (int) (num_bools
714 		  + num_values * 2
715 		  + strlen(tterm->term_names) + 1);
716     if (len & 1)
717 	len++;
718 
719 #undef CUR
720 #define CUR tterm->
721     if (outform == F_TERMCAP) {
722 	if (termcap_reset != ABSENT_STRING) {
723 	    if (init_3string != ABSENT_STRING
724 		&& !strcmp(init_3string, termcap_reset))
725 		DISCARD(init_3string);
726 
727 	    if (reset_2string != ABSENT_STRING
728 		&& !strcmp(reset_2string, termcap_reset))
729 		DISCARD(reset_2string);
730 	}
731     }
732 
733     for_each_string(j, tterm) {
734 	i = StrIndirect(j);
735 	name = ExtStrname(tterm, (int) i, str_names);
736 	assert(strlen(name) < sizeof(buffer) - EXTRA_CAP);
737 
738 	capability = tterm->Strings[i];
739 
740 	if (!version_filter(STRING, i))
741 	    continue;
742 	else if (isObsolete(outform, name))
743 	    continue;
744 
745 #if NCURSES_XNAMES
746 	/*
747 	 * Extended names can be longer than 2 characters, but termcap programs
748 	 * cannot read those (filter them out).
749 	 */
750 	if (outform == F_TERMCAP && (strlen(name) > 2))
751 	    continue;
752 #endif
753 
754 	if (outform == F_TERMCAP) {
755 	    /*
756 	     * Some older versions of vi want rmir/smir to be defined
757 	     * for ich/ich1 to work.  If they're not defined, force
758 	     * them to be output as defined and empty.
759 	     */
760 	    if (PRESENT(insert_character) || PRESENT(parm_ich)) {
761 		if (SAME_CAP(i, enter_insert_mode)
762 		    && enter_insert_mode == ABSENT_STRING) {
763 		    _nc_STRCPY(buffer, "im=", sizeof(buffer));
764 		    WRAP_CONCAT;
765 		    continue;
766 		}
767 
768 		if (SAME_CAP(i, exit_insert_mode)
769 		    && exit_insert_mode == ABSENT_STRING) {
770 		    _nc_STRCPY(buffer, "ei=", sizeof(buffer));
771 		    WRAP_CONCAT;
772 		    continue;
773 		}
774 	    }
775 	    /*
776 	     * termcap applications such as screen will be confused if sgr0
777 	     * is translated to a string containing rmacs.  Filter that out.
778 	     */
779 	    if (PRESENT(exit_attribute_mode)) {
780 		if (SAME_CAP(i, exit_attribute_mode)) {
781 		    char *trimmed_sgr0;
782 		    char *my_sgr = set_attributes;
783 
784 		    set_attributes = save_sgr;
785 
786 		    trimmed_sgr0 = _nc_trim_sgr0(tterm);
787 		    if (strcmp(capability, trimmed_sgr0))
788 			capability = trimmed_sgr0;
789 		    else {
790 			if (trimmed_sgr0 != exit_attribute_mode)
791 			    free(trimmed_sgr0);
792 		    }
793 
794 		    set_attributes = my_sgr;
795 		}
796 	    }
797 	}
798 
799 	predval = pred(STRING, i);
800 	buffer[0] = '\0';
801 
802 	if (predval != FAIL) {
803 	    if (capability != ABSENT_STRING
804 		&& i + 1 > num_strings)
805 		num_strings = i + 1;
806 
807 	    if (!VALID_STRING(capability)) {
808 		_nc_SPRINTF(buffer, _nc_SLIMIT(sizeof(buffer))
809 			    "%s@", name);
810 		WRAP_CONCAT;
811 	    } else if (outform == F_TERMCAP || outform == F_TCONVERR) {
812 		char *srccap = _nc_tic_expand(capability, TRUE, numbers);
813 		int params = (((i < (int) SIZEOF(parametrized)) &&
814 			       (i < STRCOUNT))
815 			      ? parametrized[i]
816 			      : ((*srccap == 'k')
817 				 ? 0
818 				 : has_params(srccap)));
819 		char *cv = _nc_infotocap(name, srccap, params);
820 
821 		if (cv == 0) {
822 		    if (outform == F_TCONVERR) {
823 			_nc_SPRINTF(buffer, _nc_SLIMIT(sizeof(buffer))
824 				    "%s=!!! %s WILL NOT CONVERT !!!",
825 				    name, srccap);
826 		    } else if (suppress_untranslatable) {
827 			continue;
828 		    } else {
829 			char *s = srccap, *d = buffer;
830 			_nc_SPRINTF(d, _nc_SLIMIT(sizeof(buffer)) "..%s=", name);
831 			d += strlen(d);
832 			while ((*d = *s++) != 0) {
833 			    if (*d == ':') {
834 				*d++ = '\\';
835 				*d = ':';
836 			    } else if (*d == '\\') {
837 				*++d = *s++;
838 			    }
839 			    d++;
840 			}
841 		    }
842 		} else {
843 		    _nc_SPRINTF(buffer, _nc_SLIMIT(sizeof(buffer))
844 				"%s=%s", name, cv);
845 		}
846 		len += (int) strlen(capability) + 1;
847 		WRAP_CONCAT;
848 	    } else {
849 		char *src = _nc_tic_expand(capability,
850 					   outform == F_TERMINFO, numbers);
851 
852 		strcpy_DYN(&tmpbuf, 0);
853 		strcpy_DYN(&tmpbuf, name);
854 		strcpy_DYN(&tmpbuf, "=");
855 		if (pretty
856 		    && (outform == F_TERMINFO
857 			|| outform == F_VARIABLE)) {
858 		    fmt_complex(tterm, name, src, 1);
859 		} else {
860 		    strcpy_DYN(&tmpbuf, src);
861 		}
862 		len += (int) strlen(capability) + 1;
863 		wrap_concat(tmpbuf.text);
864 		outcount = TRUE;
865 	    }
866 	}
867 	/* e.g., trimmed_sgr0 */
868 	if (capability != ABSENT_STRING &&
869 	    capability != CANCELLED_STRING &&
870 	    capability != tterm->Strings[i])
871 	    free(capability);
872     }
873     len += (int) (num_strings * 2);
874 
875     /*
876      * This piece of code should be an effective inverse of the functions
877      * postprocess_terminfo() and postprocess_terminfo() in parse_entry.c.
878      * Much more work should be done on this to support dumping termcaps.
879      */
880     if (tversion == V_HPUX) {
881 	if (VALID_STRING(memory_lock)) {
882 	    _nc_SPRINTF(buffer, _nc_SLIMIT(sizeof(buffer))
883 			"meml=%s", memory_lock);
884 	    WRAP_CONCAT;
885 	}
886 	if (VALID_STRING(memory_unlock)) {
887 	    _nc_SPRINTF(buffer, _nc_SLIMIT(sizeof(buffer))
888 			"memu=%s", memory_unlock);
889 	    WRAP_CONCAT;
890 	}
891     } else if (tversion == V_AIX) {
892 	if (VALID_STRING(acs_chars)) {
893 	    bool box_ok = TRUE;
894 	    const char *acstrans = "lqkxjmwuvtn";
895 	    const char *cp;
896 	    char *tp, *sp, boxchars[11];
897 
898 	    tp = boxchars;
899 	    for (cp = acstrans; *cp; cp++) {
900 		sp = (strchr) (acs_chars, *cp);
901 		if (sp)
902 		    *tp++ = sp[1];
903 		else {
904 		    box_ok = FALSE;
905 		    break;
906 		}
907 	    }
908 	    tp[0] = '\0';
909 
910 	    if (box_ok) {
911 		char *tmp = _nc_tic_expand(boxchars,
912 					   (outform == F_TERMINFO),
913 					   numbers);
914 		_nc_STRCPY(buffer, "box1=", sizeof(buffer));
915 		while (*tmp != '\0') {
916 		    size_t have = strlen(buffer);
917 		    size_t next = strlen(tmp);
918 		    size_t want = have + next + 1;
919 		    size_t last = next;
920 		    char save = '\0';
921 
922 		    /*
923 		     * If the expanded string is too long for the buffer,
924 		     * chop it off and save the location where we chopped it.
925 		     */
926 		    if (want >= sizeof(buffer)) {
927 			save = tmp[last];
928 			tmp[last] = '\0';
929 		    }
930 		    _nc_STRCAT(buffer, tmp, sizeof(buffer));
931 
932 		    /*
933 		     * If we chopped the buffer, replace the missing piece and
934 		     * shift everything to append the remainder.
935 		     */
936 		    if (save != '\0') {
937 			next = 0;
938 			tmp[last] = save;
939 			while ((tmp[next] = tmp[last + next]) != '\0') {
940 			    ++next;
941 			}
942 		    } else {
943 			break;
944 		    }
945 		}
946 		WRAP_CONCAT;
947 	    }
948 	}
949     }
950 
951     /*
952      * kludge: trim off trailer to avoid an extra blank line
953      * in infocmp -u output when there are no string differences
954      */
955     if (outcount) {
956 	bool trimmed = FALSE;
957 	j = (PredIdx) outbuf.used;
958 	if (j >= 2
959 	    && outbuf.text[j - 1] == '\t'
960 	    && outbuf.text[j - 2] == '\n') {
961 	    outbuf.used -= 2;
962 	    trimmed = TRUE;
963 	} else if (j >= 4
964 		   && outbuf.text[j - 1] == ':'
965 		   && outbuf.text[j - 2] == '\t'
966 		   && outbuf.text[j - 3] == '\n'
967 		   && outbuf.text[j - 4] == '\\') {
968 	    outbuf.used -= 4;
969 	    trimmed = TRUE;
970 	}
971 	if (trimmed) {
972 	    outbuf.text[outbuf.used] = '\0';
973 	    column = oldcol;
974 	    strcpy_DYN(&outbuf, " ");
975 	}
976     }
977 #if 0
978     fprintf(stderr, "num_bools = %d\n", num_bools);
979     fprintf(stderr, "num_values = %d\n", num_values);
980     fprintf(stderr, "num_strings = %d\n", num_strings);
981     fprintf(stderr, "term_names=%s, len=%d, strlen(outbuf)=%d, outbuf=%s\n",
982 	    tterm->term_names, len, outbuf.used, outbuf.text);
983 #endif
984     /*
985      * Here's where we use infodump to trigger a more stringent length check
986      * for termcap-translation purposes.
987      * Return the length of the raw entry, without tc= expansions,
988      * It gives an idea of which entries are deadly to even *scan past*,
989      * as opposed to *use*.
990      */
991     return (infodump ? len : (int) termcap_length(outbuf.text));
992 }
993 
994 static bool
995 kill_string(TERMTYPE *tterm, char *cap)
996 {
997     unsigned n;
998     for (n = 0; n < NUM_STRINGS(tterm); ++n) {
999 	if (cap == tterm->Strings[n]) {
1000 	    tterm->Strings[n] = ABSENT_STRING;
1001 	    return TRUE;
1002 	}
1003     }
1004     return FALSE;
1005 }
1006 
1007 static char *
1008 find_string(TERMTYPE *tterm, char *name)
1009 {
1010     PredIdx n;
1011     for (n = 0; n < NUM_STRINGS(tterm); ++n) {
1012 	if (version_filter(STRING, n)
1013 	    && !strcmp(name, strnames[n])) {
1014 	    char *cap = tterm->Strings[n];
1015 	    if (VALID_STRING(cap)) {
1016 		return cap;
1017 	    }
1018 	    break;
1019 	}
1020     }
1021     return ABSENT_STRING;
1022 }
1023 
1024 /*
1025  * This is used to remove function-key labels from a termcap entry to
1026  * make it smaller.
1027  */
1028 static int
1029 kill_labels(TERMTYPE *tterm, int target)
1030 {
1031     int n;
1032     int result = 0;
1033     char *cap;
1034     char name[10];
1035 
1036     for (n = 0; n <= 10; ++n) {
1037 	_nc_SPRINTF(name, _nc_SLIMIT(sizeof(name)) "lf%d", n);
1038 	if ((cap = find_string(tterm, name)) != ABSENT_STRING
1039 	    && kill_string(tterm, cap)) {
1040 	    target -= (int) (strlen(cap) + 5);
1041 	    ++result;
1042 	    if (target < 0)
1043 		break;
1044 	}
1045     }
1046     return result;
1047 }
1048 
1049 /*
1050  * This is used to remove function-key definitions from a termcap entry to
1051  * make it smaller.
1052  */
1053 static int
1054 kill_fkeys(TERMTYPE *tterm, int target)
1055 {
1056     int n;
1057     int result = 0;
1058     char *cap;
1059     char name[10];
1060 
1061     for (n = 60; n >= 0; --n) {
1062 	_nc_SPRINTF(name, _nc_SLIMIT(sizeof(name)) "kf%d", n);
1063 	if ((cap = find_string(tterm, name)) != ABSENT_STRING
1064 	    && kill_string(tterm, cap)) {
1065 	    target -= (int) (strlen(cap) + 5);
1066 	    ++result;
1067 	    if (target < 0)
1068 		break;
1069 	}
1070     }
1071     return result;
1072 }
1073 
1074 /*
1075  * Check if the given acsc string is a 1-1 mapping, i.e., just-like-vt100.
1076  * Also, since this is for termcap, we only care about the line-drawing map.
1077  */
1078 #define isLine(c) (strchr("lmkjtuvwqxn", c) != 0)
1079 
1080 static bool
1081 one_one_mapping(const char *mapping)
1082 {
1083     bool result = TRUE;
1084 
1085     if (mapping != ABSENT_STRING) {
1086 	int n = 0;
1087 	while (mapping[n] != '\0') {
1088 	    if (isLine(mapping[n]) &&
1089 		mapping[n] != mapping[n + 1]) {
1090 		result = FALSE;
1091 		break;
1092 	    }
1093 	    n += 2;
1094 	}
1095     }
1096     return result;
1097 }
1098 
1099 #define FMT_ENTRY() \
1100 		fmt_entry(tterm, pred, \
1101 			0, \
1102 			suppress_untranslatable, \
1103 			infodump, numbers)
1104 
1105 #define SHOW_WHY PRINTF
1106 
1107 static bool
1108 purged_acs(TERMTYPE *tterm)
1109 {
1110     bool result = FALSE;
1111 
1112     if (VALID_STRING(acs_chars)) {
1113 	if (!one_one_mapping(acs_chars)) {
1114 	    enter_alt_charset_mode = ABSENT_STRING;
1115 	    exit_alt_charset_mode = ABSENT_STRING;
1116 	    SHOW_WHY("# (rmacs/smacs removed for consistency)\n");
1117 	}
1118 	result = TRUE;
1119     }
1120     return result;
1121 }
1122 
1123 static void
1124 encode_b64(char *target, char *source, unsigned state, int *saved)
1125 {
1126     /* RFC-4648 */
1127     static const char data[] =
1128     "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
1129     "abcdefghijklmnopqrstuvwxyz"
1130     "0123456789" "-_";
1131     int ch = UChar(source[state]);
1132 
1133     switch (state % 3) {
1134     case 0:
1135 	*target++ = data[ch & 077];
1136 	*saved = (ch >> 6) & 3;
1137 	break;
1138     case 1:
1139 	*target++ = data[((ch << 2) | *saved) & 077];
1140 	*saved = (ch >> 4) & 017;
1141 	break;
1142     case 2:
1143 	*target++ = data[((ch << 4) | *saved) & 077];
1144 	*target++ = data[(ch >> 2) & 077];
1145 	*saved = 0;
1146 	break;
1147     }
1148     *target = '\0';
1149 }
1150 
1151 /*
1152  * Dump a single entry.
1153  */
1154 void
1155 dump_entry(TERMTYPE *tterm,
1156 	   int suppress_untranslatable,
1157 	   int limited,
1158 	   int numbers,
1159 	   PredFunc pred)
1160 {
1161     TERMTYPE save_tterm;
1162     int len, critlen;
1163     const char *legend;
1164     bool infodump;
1165 
1166     if (quickdump) {
1167 	char bigbuf[65536];
1168 	unsigned n;
1169 	unsigned offset = 0;
1170 	separator = "";
1171 	trailer = "\n";
1172 	indent = 0;
1173 	if (_nc_write_object(tterm, bigbuf, &offset, sizeof(bigbuf)) == OK) {
1174 	    char numbuf[80];
1175 	    if (quickdump & 1) {
1176 		if (outbuf.used)
1177 		    wrap_concat("\n");
1178 		wrap_concat("hex:");
1179 		for (n = 0; n < offset; ++n) {
1180 		    sprintf(numbuf, "%02X", UChar(bigbuf[n]));
1181 		    wrap_concat(numbuf);
1182 		}
1183 	    }
1184 	    if (quickdump & 2) {
1185 		int value = 0;
1186 		if (outbuf.used)
1187 		    wrap_concat("\n");
1188 		wrap_concat("b64:");
1189 		for (n = 0; n < offset; ++n) {
1190 		    encode_b64(numbuf, bigbuf, n, &value);
1191 		    wrap_concat(numbuf);
1192 		}
1193 		switch (n % 3) {
1194 		case 0:
1195 		    break;
1196 		case 1:
1197 		    wrap_concat("===");
1198 		    break;
1199 		case 2:
1200 		    wrap_concat("==");
1201 		    break;
1202 		}
1203 	    }
1204 	}
1205 	return;
1206     }
1207 
1208     if (outform == F_TERMCAP || outform == F_TCONVERR) {
1209 	critlen = MAX_TERMCAP_LENGTH;
1210 	legend = "older termcap";
1211 	infodump = FALSE;
1212 	set_obsolete_termcaps(tterm);
1213     } else {
1214 	critlen = MAX_TERMINFO_LENGTH;
1215 	legend = "terminfo";
1216 	infodump = TRUE;
1217     }
1218 
1219     save_sgr = set_attributes;
1220 
1221     if ((FMT_ENTRY() > critlen)
1222 	&& limited) {
1223 
1224 	save_tterm = *tterm;
1225 	if (!suppress_untranslatable) {
1226 	    SHOW_WHY("# (untranslatable capabilities removed to fit entry within %d bytes)\n",
1227 		     critlen);
1228 	    suppress_untranslatable = TRUE;
1229 	}
1230 	if (FMT_ENTRY() > critlen) {
1231 	    /*
1232 	     * We pick on sgr because it's a nice long string capability that
1233 	     * is really just an optimization hack.  Another good candidate is
1234 	     * acsc since it is both long and unused by BSD termcap.
1235 	     */
1236 	    bool changed = FALSE;
1237 
1238 #if NCURSES_XNAMES
1239 	    /*
1240 	     * Extended names are most likely function-key definitions.  Drop
1241 	     * those first.
1242 	     */
1243 	    unsigned n;
1244 	    for (n = STRCOUNT; n < NUM_STRINGS(tterm); n++) {
1245 		const char *name = ExtStrname(tterm, (int) n, strnames);
1246 
1247 		if (VALID_STRING(tterm->Strings[n])) {
1248 		    set_attributes = ABSENT_STRING;
1249 		    /* we remove long names anyway - only report the short */
1250 		    if (strlen(name) <= 2) {
1251 			SHOW_WHY("# (%s removed to fit entry within %d bytes)\n",
1252 				 name,
1253 				 critlen);
1254 		    }
1255 		    changed = TRUE;
1256 		    if (FMT_ENTRY() <= critlen)
1257 			break;
1258 		}
1259 	    }
1260 #endif
1261 	    if (VALID_STRING(set_attributes)) {
1262 		set_attributes = ABSENT_STRING;
1263 		SHOW_WHY("# (sgr removed to fit entry within %d bytes)\n",
1264 			 critlen);
1265 		changed = TRUE;
1266 	    }
1267 	    if (!changed || (FMT_ENTRY() > critlen)) {
1268 		if (purged_acs(tterm)) {
1269 		    acs_chars = ABSENT_STRING;
1270 		    SHOW_WHY("# (acsc removed to fit entry within %d bytes)\n",
1271 			     critlen);
1272 		    changed = TRUE;
1273 		}
1274 	    }
1275 	    if (!changed || (FMT_ENTRY() > critlen)) {
1276 		int oldversion = tversion;
1277 
1278 		tversion = V_BSD;
1279 		SHOW_WHY("# (terminfo-only capabilities suppressed to fit entry within %d bytes)\n",
1280 			 critlen);
1281 
1282 		len = FMT_ENTRY();
1283 		if (len > critlen
1284 		    && kill_labels(tterm, len - critlen)) {
1285 		    SHOW_WHY("# (some labels capabilities suppressed to fit entry within %d bytes)\n",
1286 			     critlen);
1287 		    len = FMT_ENTRY();
1288 		}
1289 		if (len > critlen
1290 		    && kill_fkeys(tterm, len - critlen)) {
1291 		    SHOW_WHY("# (some function-key capabilities suppressed to fit entry within %d bytes)\n",
1292 			     critlen);
1293 		    len = FMT_ENTRY();
1294 		}
1295 		if (len > critlen) {
1296 		    (void) fprintf(stderr,
1297 				   "warning: %s entry is %d bytes long\n",
1298 				   _nc_first_name(tterm->term_names),
1299 				   len);
1300 		    SHOW_WHY("# WARNING: this entry, %d bytes long, may core-dump %s libraries!\n",
1301 			     len, legend);
1302 		}
1303 		tversion = oldversion;
1304 	    }
1305 	    set_attributes = save_sgr;
1306 	    *tterm = save_tterm;
1307 	}
1308     } else if (!version_filter(STRING, STR_IDX(acs_chars))) {
1309 	save_tterm = *tterm;
1310 	if (purged_acs(tterm)) {
1311 	    (void) FMT_ENTRY();
1312 	}
1313 	*tterm = save_tterm;
1314     }
1315 }
1316 
1317 void
1318 dump_uses(const char *name, bool infodump)
1319 /* dump "use=" clauses in the appropriate format */
1320 {
1321     char buffer[MAX_TERMINFO_LENGTH];
1322 
1323     if (outform == F_TERMCAP || outform == F_TCONVERR)
1324 	trim_trailing();
1325     _nc_SPRINTF(buffer, _nc_SLIMIT(sizeof(buffer))
1326 		"%s%s", infodump ? "use=" : "tc=", name);
1327     wrap_concat(buffer);
1328 }
1329 
1330 int
1331 show_entry(void)
1332 {
1333     /*
1334      * Trim any remaining whitespace.
1335      */
1336     if (outbuf.used != 0) {
1337 	bool infodump = (outform != F_TERMCAP && outform != F_TCONVERR);
1338 	char delim = (char) (infodump ? ',' : ':');
1339 	int j;
1340 
1341 	for (j = (int) outbuf.used - 1; j > 0; --j) {
1342 	    char ch = outbuf.text[j];
1343 	    if (ch == '\n') {
1344 		;
1345 	    } else if (isspace(UChar(ch))) {
1346 		outbuf.used = (size_t) j;
1347 	    } else if (!infodump && ch == '\\') {
1348 		outbuf.used = (size_t) j;
1349 	    } else if (ch == delim && (j == 0 || outbuf.text[j - 1] != '\\')) {
1350 		outbuf.used = (size_t) (j + 1);
1351 	    } else {
1352 		break;
1353 	    }
1354 	}
1355 	outbuf.text[outbuf.used] = '\0';
1356     }
1357     if (outbuf.text != 0) {
1358 	(void) fputs(outbuf.text, stdout);
1359 	putchar('\n');
1360     }
1361     return (int) outbuf.used;
1362 }
1363 
1364 void
1365 compare_entry(PredHook hook,
1366 	      TERMTYPE *tp GCC_UNUSED,
1367 	      bool quiet)
1368 /* compare two entries */
1369 {
1370     PredIdx i, j;
1371     NCURSES_CONST char *name;
1372 
1373     if (!quiet)
1374 	fputs("    comparing booleans.\n", stdout);
1375     for_each_boolean(j, tp) {
1376 	i = BoolIndirect(j);
1377 	name = ExtBoolname(tp, (int) i, bool_names);
1378 
1379 	if (isObsolete(outform, name))
1380 	    continue;
1381 
1382 	(*hook) (CMP_BOOLEAN, i, name);
1383     }
1384 
1385     if (!quiet)
1386 	fputs("    comparing numbers.\n", stdout);
1387     for_each_number(j, tp) {
1388 	i = NumIndirect(j);
1389 	name = ExtNumname(tp, (int) i, num_names);
1390 
1391 	if (isObsolete(outform, name))
1392 	    continue;
1393 
1394 	(*hook) (CMP_NUMBER, i, name);
1395     }
1396 
1397     if (!quiet)
1398 	fputs("    comparing strings.\n", stdout);
1399     for_each_string(j, tp) {
1400 	i = StrIndirect(j);
1401 	name = ExtStrname(tp, (int) i, str_names);
1402 
1403 	if (isObsolete(outform, name))
1404 	    continue;
1405 
1406 	(*hook) (CMP_STRING, i, name);
1407     }
1408 
1409     /* (void) fputs("    comparing use entries.\n", stdout); */
1410     (*hook) (CMP_USE, 0, "use");
1411 
1412 }
1413 
1414 #define NOTSET(s)	((s) == 0)
1415 
1416 /*
1417  * This bit of legerdemain turns all the terminfo variable names into
1418  * references to locations in the arrays Booleans, Numbers, and Strings ---
1419  * precisely what's needed.
1420  */
1421 #undef CUR
1422 #define CUR tp->
1423 
1424 static void
1425 set_obsolete_termcaps(TERMTYPE *tp)
1426 {
1427 #include "capdefaults.c"
1428 }
1429 
1430 /*
1431  * Convert an alternate-character-set string to canonical form: sorted and
1432  * unique.
1433  */
1434 void
1435 repair_acsc(TERMTYPE *tp)
1436 {
1437     if (VALID_STRING(acs_chars)) {
1438 	size_t n, m;
1439 	char mapped[256];
1440 	char extra = 0;
1441 	unsigned source;
1442 	unsigned target;
1443 	bool fix_needed = FALSE;
1444 
1445 	for (n = 0, source = 0; acs_chars[n] != 0; n++) {
1446 	    target = UChar(acs_chars[n]);
1447 	    if (source >= target) {
1448 		fix_needed = TRUE;
1449 		break;
1450 	    }
1451 	    source = target;
1452 	    if (acs_chars[n + 1])
1453 		n++;
1454 	}
1455 	if (fix_needed) {
1456 	    memset(mapped, 0, sizeof(mapped));
1457 	    for (n = 0; acs_chars[n] != 0; n++) {
1458 		source = UChar(acs_chars[n]);
1459 		if ((target = (unsigned char) acs_chars[n + 1]) != 0) {
1460 		    mapped[source] = (char) target;
1461 		    n++;
1462 		} else {
1463 		    extra = (char) source;
1464 		}
1465 	    }
1466 	    for (n = m = 0; n < sizeof(mapped); n++) {
1467 		if (mapped[n]) {
1468 		    acs_chars[m++] = (char) n;
1469 		    acs_chars[m++] = mapped[n];
1470 		}
1471 	    }
1472 	    if (extra)
1473 		acs_chars[m++] = extra;		/* garbage in, garbage out */
1474 	    acs_chars[m] = 0;
1475 	}
1476     }
1477 }
1478