xref: /freebsd/usr.bin/locale/locale.c (revision a250649b)
1 /*-
2  * Copyright (c) 2002, 2003 Alexey Zelkin <phantom@FreeBSD.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 /*
30  * XXX: implement missing era_* (LC_TIME) keywords (require libc &
31  *	nl_langinfo(3) extensions)
32  *
33  * XXX: correctly handle reserved 'charmap' keyword and '-m' option (require
34  *      localedef(1) implementation).  Currently it's handled via
35  *	nl_langinfo(CODESET).
36  */
37 
38 #include <sys/types.h>
39 #include <dirent.h>
40 #include <err.h>
41 #include <locale.h>
42 #include <langinfo.h>
43 #include <stdio.h>
44 #include <stdlib.h>
45 #include <string.h>
46 #include <stringlist.h>
47 #include <unistd.h>
48 #include "setlocale.h"
49 
50 /* Local prototypes */
51 void	init_locales_list(void);
52 void	list_charmaps(void);
53 void	list_locales(void);
54 const char *lookup_localecat(int);
55 char	*kwval_lconv(int);
56 int	kwval_lookup(char *, char **, int *, int *);
57 void	showdetails(char *);
58 void	showkeywordslist(char *substring);
59 void	showlocale(void);
60 void	usage(void);
61 
62 /* Global variables */
63 static StringList *locales = NULL;
64 
65 int	all_locales = 0;
66 int	all_charmaps = 0;
67 int	prt_categories = 0;
68 int	prt_keywords = 0;
69 int	more_params = 0;
70 
71 struct _lcinfo {
72 	const char	*name;
73 	int		id;
74 } lcinfo [] = {
75 	{ "LC_CTYPE",		LC_CTYPE },
76 	{ "LC_COLLATE",		LC_COLLATE },
77 	{ "LC_TIME",		LC_TIME },
78 	{ "LC_NUMERIC",		LC_NUMERIC },
79 	{ "LC_MONETARY",	LC_MONETARY },
80 	{ "LC_MESSAGES",	LC_MESSAGES }
81 };
82 #define NLCINFO (sizeof(lcinfo)/sizeof(lcinfo[0]))
83 
84 /* ids for values not referenced by nl_langinfo() */
85 #define	KW_ZERO			10000
86 #define	KW_GROUPING		(KW_ZERO+1)
87 #define KW_INT_CURR_SYMBOL 	(KW_ZERO+2)
88 #define KW_CURRENCY_SYMBOL 	(KW_ZERO+3)
89 #define KW_MON_DECIMAL_POINT 	(KW_ZERO+4)
90 #define KW_MON_THOUSANDS_SEP 	(KW_ZERO+5)
91 #define KW_MON_GROUPING 	(KW_ZERO+6)
92 #define KW_POSITIVE_SIGN 	(KW_ZERO+7)
93 #define KW_NEGATIVE_SIGN 	(KW_ZERO+8)
94 #define KW_INT_FRAC_DIGITS 	(KW_ZERO+9)
95 #define KW_FRAC_DIGITS 		(KW_ZERO+10)
96 #define KW_P_CS_PRECEDES 	(KW_ZERO+11)
97 #define KW_P_SEP_BY_SPACE 	(KW_ZERO+12)
98 #define KW_N_CS_PRECEDES 	(KW_ZERO+13)
99 #define KW_N_SEP_BY_SPACE 	(KW_ZERO+14)
100 #define KW_P_SIGN_POSN 		(KW_ZERO+15)
101 #define KW_N_SIGN_POSN 		(KW_ZERO+16)
102 #define KW_INT_P_CS_PRECEDES 	(KW_ZERO+17)
103 #define KW_INT_P_SEP_BY_SPACE 	(KW_ZERO+18)
104 #define KW_INT_N_CS_PRECEDES 	(KW_ZERO+19)
105 #define KW_INT_N_SEP_BY_SPACE 	(KW_ZERO+20)
106 #define KW_INT_P_SIGN_POSN 	(KW_ZERO+21)
107 #define KW_INT_N_SIGN_POSN 	(KW_ZERO+22)
108 
109 struct _kwinfo {
110 	const char	*name;
111 	int		isstr;		/* true - string, false - number */
112 	int		catid;		/* LC_* */
113 	int		value_ref;
114 	const char	*comment;
115 } kwinfo [] = {
116 	{ "charmap",		1, LC_CTYPE,	CODESET, "" },	/* hack */
117 
118 	{ "decimal_point",	1, LC_NUMERIC,	RADIXCHAR, "" },
119 	{ "thousands_sep",	1, LC_NUMERIC,	THOUSEP, "" },
120 	{ "grouping",		1, LC_NUMERIC,	KW_GROUPING, "" },
121 	{ "radixchar",		1, LC_NUMERIC,	RADIXCHAR,
122 	  "Same as decimal_point (FreeBSD only)" },		/* compat */
123 	{ "thousep",		1, LC_NUMERIC,	THOUSEP,
124 	  "Same as thousands_sep (FreeBSD only)" },		/* compat */
125 
126 	{ "int_curr_symbol",	1, LC_MONETARY,	KW_INT_CURR_SYMBOL, "" },
127 	{ "currency_symbol",	1, LC_MONETARY,	KW_CURRENCY_SYMBOL, "" },
128 	{ "mon_decimal_point",	1, LC_MONETARY,	KW_MON_DECIMAL_POINT, "" },
129 	{ "mon_thousands_sep",	1, LC_MONETARY,	KW_MON_THOUSANDS_SEP, "" },
130 	{ "mon_grouping",	1, LC_MONETARY,	KW_MON_GROUPING, "" },
131 	{ "positive_sign",	1, LC_MONETARY,	KW_POSITIVE_SIGN, "" },
132 	{ "negative_sign",	1, LC_MONETARY,	KW_NEGATIVE_SIGN, "" },
133 
134 	{ "int_frac_digits",	0, LC_MONETARY,	KW_INT_FRAC_DIGITS, "" },
135 	{ "frac_digits",	0, LC_MONETARY,	KW_FRAC_DIGITS, "" },
136 	{ "p_cs_precedes",	0, LC_MONETARY,	KW_P_CS_PRECEDES, "" },
137 	{ "p_sep_by_space",	0, LC_MONETARY,	KW_P_SEP_BY_SPACE, "" },
138 	{ "n_cs_precedes",	0, LC_MONETARY,	KW_N_CS_PRECEDES, "" },
139 	{ "n_sep_by_space",	0, LC_MONETARY,	KW_N_SEP_BY_SPACE, "" },
140 	{ "p_sign_posn",	0, LC_MONETARY,	KW_P_SIGN_POSN, "" },
141 	{ "n_sign_posn",	0, LC_MONETARY,	KW_N_SIGN_POSN, "" },
142 	{ "int_p_cs_precedes",	0, LC_MONETARY,	KW_INT_P_CS_PRECEDES, "" },
143 	{ "int_p_sep_by_space",	0, LC_MONETARY,	KW_INT_P_SEP_BY_SPACE, "" },
144 	{ "int_n_cs_precedes",	0, LC_MONETARY,	KW_INT_N_CS_PRECEDES, "" },
145 	{ "int_n_sep_by_space",	0, LC_MONETARY,	KW_INT_N_SEP_BY_SPACE, "" },
146 	{ "int_p_sign_posn",	0, LC_MONETARY,	KW_INT_P_SIGN_POSN, "" },
147 	{ "int_n_sign_posn",	0, LC_MONETARY,	KW_INT_N_SIGN_POSN, "" },
148 
149 	{ "d_t_fmt",		1, LC_TIME,	D_T_FMT, "" },
150 	{ "d_fmt",		1, LC_TIME,	D_FMT, "" },
151 	{ "t_fmt",		1, LC_TIME,	T_FMT, "" },
152 	{ "c_fmt",		1, LC_TIME,	C_FMT, "" },
153 	{ "x_fmt",		1, LC_TIME,	X_FMT, "" },
154 	{ "X_fmt",		1, LC_TIME,	CAPITALX_FMT, "" },
155 	{ "am_str",		1, LC_TIME,	AM_STR, "" },
156 	{ "pm_str",		1, LC_TIME,	PM_STR, "" },
157 	{ "t_fmt_ampm",		1, LC_TIME,	T_FMT_AMPM, "" },
158 	{ "day_1",		1, LC_TIME,	DAY_1, "" },
159 	{ "day_2",		1, LC_TIME,	DAY_2, "" },
160 	{ "day_3",		1, LC_TIME,	DAY_3, "" },
161 	{ "day_4",		1, LC_TIME,	DAY_4, "" },
162 	{ "day_5",		1, LC_TIME,	DAY_5, "" },
163 	{ "day_6",		1, LC_TIME,	DAY_6, "" },
164 	{ "day_7",		1, LC_TIME,	DAY_7, "" },
165 	{ "abday_1",		1, LC_TIME,	ABDAY_1, "" },
166 	{ "abday_2",		1, LC_TIME,	ABDAY_2, "" },
167 	{ "abday_3",		1, LC_TIME,	ABDAY_3, "" },
168 	{ "abday_4",		1, LC_TIME,	ABDAY_4, "" },
169 	{ "abday_5",		1, LC_TIME,	ABDAY_5, "" },
170 	{ "abday_6",		1, LC_TIME,	ABDAY_6, "" },
171 	{ "abday_7",		1, LC_TIME,	ABDAY_7, "" },
172 	{ "mon_1",		1, LC_TIME,	MON_1, "" },
173 	{ "mon_2",		1, LC_TIME,	MON_2, "" },
174 	{ "mon_3",		1, LC_TIME,	MON_3, "" },
175 	{ "mon_4",		1, LC_TIME,	MON_4, "" },
176 	{ "mon_5",		1, LC_TIME,	MON_5, "" },
177 	{ "mon_6",		1, LC_TIME,	MON_6, "" },
178 	{ "mon_7",		1, LC_TIME,	MON_7, "" },
179 	{ "mon_8",		1, LC_TIME,	MON_8, "" },
180 	{ "mon_9",		1, LC_TIME,	MON_9, "" },
181 	{ "mon_10",		1, LC_TIME,	MON_10, "" },
182 	{ "mon_11",		1, LC_TIME,	MON_11, "" },
183 	{ "mon_12",		1, LC_TIME,	MON_12, "" },
184 	{ "abmon_1",		1, LC_TIME,	ABMON_1, "" },
185 	{ "abmon_2",		1, LC_TIME,	ABMON_2, "" },
186 	{ "abmon_3",		1, LC_TIME,	ABMON_3, "" },
187 	{ "abmon_4",		1, LC_TIME,	ABMON_4, "" },
188 	{ "abmon_5",		1, LC_TIME,	ABMON_5, "" },
189 	{ "abmon_6",		1, LC_TIME,	ABMON_6, "" },
190 	{ "abmon_7",		1, LC_TIME,	ABMON_7, "" },
191 	{ "abmon_8",		1, LC_TIME,	ABMON_8, "" },
192 	{ "abmon_9",		1, LC_TIME,	ABMON_9, "" },
193 	{ "abmon_10",		1, LC_TIME,	ABMON_10, "" },
194 	{ "abmon_11",		1, LC_TIME,	ABMON_11, "" },
195 	{ "abmon_12",		1, LC_TIME,	ABMON_12, "" },
196 	{ "altmon_1",		1, LC_TIME,	ALTMON_1, "" },
197 	{ "altmon_2",		1, LC_TIME,	ALTMON_2, "" },
198 	{ "altmon_3",		1, LC_TIME,	ALTMON_3, "" },
199 	{ "altmon_4",		1, LC_TIME,	ALTMON_4, "" },
200 	{ "altmon_5",		1, LC_TIME,	ALTMON_5, "" },
201 	{ "altmon_6",		1, LC_TIME,	ALTMON_6, "" },
202 	{ "altmon_7",		1, LC_TIME,	ALTMON_7, "" },
203 	{ "altmon_8",		1, LC_TIME,	ALTMON_8, "" },
204 	{ "altmon_9",		1, LC_TIME,	ALTMON_9, "" },
205 	{ "altmon_10",		1, LC_TIME,	ALTMON_10, "" },
206 	{ "altmon_11",		1, LC_TIME,	ALTMON_11, "" },
207 	{ "altmon_12",		1, LC_TIME,	ALTMON_12, "" },
208 	{ "era",		1, LC_TIME,	ERA, "(unavailable)" },
209 	{ "era_d_fmt",		1, LC_TIME,	ERA_D_FMT, "(unavailable)" },
210 	{ "era_d_t_fmt",	1, LC_TIME,	ERA_D_T_FMT, "(unavailable)" },
211 	{ "era_t_fmt",		1, LC_TIME,	ERA_T_FMT, "(unavailable)" },
212 	{ "alt_digits",		1, LC_TIME,	ALT_DIGITS, "" },
213 	{ "d_md_order",		1, LC_TIME,	D_MD_ORDER,
214 	  "(FreeBSD only)"				},	/* local */
215 
216 	{ "yesexpr",		1, LC_MESSAGES, YESEXPR, "" },
217 	{ "noexpr",		1, LC_MESSAGES, NOEXPR, "" },
218 	{ "yesstr",		1, LC_MESSAGES, YESSTR,
219 	  "(POSIX legacy)" },					/* compat */
220 	{ "nostr",		1, LC_MESSAGES, NOSTR,
221 	  "(POSIX legacy)" }					/* compat */
222 
223 };
224 #define NKWINFO (sizeof(kwinfo)/sizeof(kwinfo[0]))
225 
226 const char *boguslocales[] = { "UTF-8" };
227 #define	NBOGUS	(sizeof(boguslocales)/sizeof(boguslocales[0]))
228 
229 int
230 main(int argc, char *argv[])
231 {
232 	int	ch;
233 	int	tmp;
234 
235 	while ((ch = getopt(argc, argv, "ackms:")) != -1) {
236 		switch (ch) {
237 		case 'a':
238 			all_locales = 1;
239 			break;
240 		case 'c':
241 			prt_categories = 1;
242 			break;
243 		case 'k':
244 			prt_keywords = 1;
245 			break;
246 		case 'm':
247 			all_charmaps = 1;
248 			break;
249 		default:
250 			usage();
251 		}
252 	}
253 	argc -= optind;
254 	argv += optind;
255 
256 	/* validate arguments */
257 	if (all_locales && all_charmaps)
258 		usage();
259 	if ((all_locales || all_charmaps) && argc > 0)
260 		usage();
261 	if ((all_locales || all_charmaps) && (prt_categories || prt_keywords))
262 		usage();
263 	if ((prt_categories || prt_keywords) && argc <= 0)
264 		usage();
265 
266 	/* process '-a' */
267 	if (all_locales) {
268 		list_locales();
269 		exit(0);
270 	}
271 
272 	/* process '-m' */
273 	if (all_charmaps) {
274 		list_charmaps();
275 		exit(0);
276 	}
277 
278 	/* check for special case '-k list' */
279 	tmp = 0;
280 	if (prt_keywords && argc > 0)
281 		while (tmp < argc)
282 			if (strcasecmp(argv[tmp++], "list") == 0) {
283 				showkeywordslist(argv[tmp]);
284 				exit(0);
285 			}
286 
287 	/* process '-c' and/or '-k' */
288 	if (prt_categories || prt_keywords || argc > 0) {
289 		setlocale(LC_ALL, "");
290 		while (argc > 0) {
291 			showdetails(*argv);
292 			argv++;
293 			argc--;
294 		}
295 		exit(0);
296 	}
297 
298 	/* no arguments, show current locale state */
299 	showlocale();
300 
301 	return (0);
302 }
303 
304 void
305 usage(void)
306 {
307 	printf("Usage: locale [ -a | -m ]\n"
308                "       locale -k list [prefix]\n"
309                "       locale [ -ck ] keyword ...\n");
310 	exit(1);
311 }
312 
313 /*
314  * Output information about all available locales
315  *
316  * XXX actually output of this function does not guarantee that locale
317  *     is really available to application, since it can be broken or
318  *     inconsistent thus setlocale() will fail.  Maybe add '-V' function to
319  *     also validate these locales?
320  */
321 void
322 list_locales(void)
323 {
324 	size_t i;
325 
326 	init_locales_list();
327 	for (i = 0; i < locales->sl_cur; i++) {
328 		printf("%s\n", locales->sl_str[i]);
329 	}
330 }
331 
332 /*
333  * qsort() helper function
334  */
335 static int
336 scmp(const void *s1, const void *s2)
337 {
338 	return strcmp(*(const char **)s1, *(const char **)s2);
339 }
340 
341 /*
342  * Output information about all available charmaps
343  *
344  * XXX this function is doing a task in hackish way, i.e. by scaning
345  *     list of locales, spliting their codeset part and building list of
346  *     them.
347  */
348 void
349 list_charmaps(void)
350 {
351 	size_t i;
352 	char *s, *cs;
353 	StringList *charmaps;
354 
355 	/* initialize StringList */
356 	charmaps = sl_init();
357 	if (charmaps == NULL)
358 		err(1, "could not allocate memory");
359 
360 	/* fetch locales list */
361 	init_locales_list();
362 
363 	/* split codesets and build their list */
364 	for (i = 0; i < locales->sl_cur; i++) {
365 		s = locales->sl_str[i];
366 		if ((cs = strchr(s, '.')) != NULL) {
367 			cs++;
368 			if (sl_find(charmaps, cs) == NULL)
369 				sl_add(charmaps, cs);
370 		}
371 	}
372 
373 	/* add US-ASCII, if not yet added */
374 	if (sl_find(charmaps, "US-ASCII") == NULL)
375 		sl_add(charmaps, "US-ASCII");
376 
377 	/* sort the list */
378 	qsort(charmaps->sl_str, charmaps->sl_cur, sizeof(char *), scmp);
379 
380 	/* print results */
381 	for (i = 0; i < charmaps->sl_cur; i++) {
382 		printf("%s\n", charmaps->sl_str[i]);
383 	}
384 }
385 
386 /*
387  * Retrieve sorted list of system locales (or user locales, if PATH_LOCALE
388  * environment variable is set)
389  */
390 void
391 init_locales_list(void)
392 {
393 	DIR *dirp;
394 	struct dirent *dp;
395 	size_t i;
396 	int bogus;
397 
398 	/* why call this function twice ? */
399 	if (locales != NULL)
400 		return;
401 
402 	/* initialize StringList */
403 	locales = sl_init();
404 	if (locales == NULL)
405 		err(1, "could not allocate memory");
406 
407 	/* get actual locales directory name */
408 	if (__detect_path_locale() != 0)
409 		err(1, "unable to find locales storage");
410 
411 	/* open locales directory */
412 	dirp = opendir(_PathLocale);
413 	if (dirp == NULL)
414 		err(1, "could not open directory '%s'", _PathLocale);
415 
416 	/* scan directory and store its contents except "." and ".." */
417 	while ((dp = readdir(dirp)) != NULL) {
418 		if (*(dp->d_name) == '.')
419 			continue;		/* exclude "." and ".." */
420 		for (bogus = i = 0; i < NBOGUS; i++)
421 			if (strncmp(dp->d_name, boguslocales[i],
422 			    strlen(boguslocales[i])) == 0)
423 				bogus = 1;
424 		if (!bogus)
425 			sl_add(locales, strdup(dp->d_name));
426 	}
427 	closedir(dirp);
428 
429         /* make sure that 'POSIX' and 'C' locales are present in the list.
430 	 * POSIX 1003.1-2001 requires presence of 'POSIX' name only here, but
431          * we also list 'C' for constistency
432          */
433 	if (sl_find(locales, "POSIX") == NULL)
434 		sl_add(locales, "POSIX");
435 
436 	if (sl_find(locales, "C") == NULL)
437 		sl_add(locales, "C");
438 
439 	/* make output nicer, sort the list */
440 	qsort(locales->sl_str, locales->sl_cur, sizeof(char *), scmp);
441 }
442 
443 /*
444  * Show current locale status, depending on environment variables
445  */
446 void
447 showlocale(void)
448 {
449 	size_t	i;
450 	const char *lang, *vval, *eval;
451 
452 	setlocale(LC_ALL, "");
453 
454 	lang = getenv("LANG");
455 	if (lang == NULL) {
456 		lang = "";
457 	}
458 	printf("LANG=%s\n", lang);
459 	/* XXX: if LANG is null, then set it to "C" to get implied values? */
460 
461 	for (i = 0; i < NLCINFO; i++) {
462 		vval = setlocale(lcinfo[i].id, NULL);
463 		eval = getenv(lcinfo[i].name);
464 		if (eval != NULL && !strcmp(eval, vval)
465 				&& strcmp(lang, vval)) {
466 			/*
467 			 * Appropriate environment variable set, its value
468 			 * is valid and not overriden by LC_ALL
469 			 *
470 			 * XXX: possible side effect: if both LANG and
471 			 * overriden environment variable are set into same
472 			 * value, then it'll be assumed as 'implied'
473 			 */
474 			printf("%s=%s\n", lcinfo[i].name, vval);
475 		} else {
476 			printf("%s=\"%s\"\n", lcinfo[i].name, vval);
477 		}
478 	}
479 
480 	vval = getenv("LC_ALL");
481 	if (vval == NULL) {
482 		vval = "";
483 	}
484 	printf("LC_ALL=%s\n", vval);
485 }
486 
487 /*
488  * keyword value lookup helper (via localeconv())
489  */
490 char *
491 kwval_lconv(int id)
492 {
493 	struct lconv *lc;
494 	char *rval;
495 
496 	rval = NULL;
497 	lc = localeconv();
498 	switch (id) {
499 		case KW_GROUPING:
500 			rval = lc->grouping;
501 			break;
502 		case KW_INT_CURR_SYMBOL:
503 			rval = lc->int_curr_symbol;
504 			break;
505 		case KW_CURRENCY_SYMBOL:
506 			rval = lc->currency_symbol;
507 			break;
508 		case KW_MON_DECIMAL_POINT:
509 			rval = lc->mon_decimal_point;
510 			break;
511 		case KW_MON_THOUSANDS_SEP:
512 			rval = lc->mon_thousands_sep;
513 			break;
514 		case KW_MON_GROUPING:
515 			rval = lc->mon_grouping;
516 			break;
517 		case KW_POSITIVE_SIGN:
518 			rval = lc->positive_sign;
519 			break;
520 		case KW_NEGATIVE_SIGN:
521 			rval = lc->negative_sign;
522 			break;
523 		case KW_INT_FRAC_DIGITS:
524 			rval = &(lc->int_frac_digits);
525 			break;
526 		case KW_FRAC_DIGITS:
527 			rval = &(lc->frac_digits);
528 			break;
529 		case KW_P_CS_PRECEDES:
530 			rval = &(lc->p_cs_precedes);
531 			break;
532 		case KW_P_SEP_BY_SPACE:
533 			rval = &(lc->p_sep_by_space);
534 			break;
535 		case KW_N_CS_PRECEDES:
536 			rval = &(lc->n_cs_precedes);
537 			break;
538 		case KW_N_SEP_BY_SPACE:
539 			rval = &(lc->n_sep_by_space);
540 			break;
541 		case KW_P_SIGN_POSN:
542 			rval = &(lc->p_sign_posn);
543 			break;
544 		case KW_N_SIGN_POSN:
545 			rval = &(lc->n_sign_posn);
546 			break;
547 		case KW_INT_P_CS_PRECEDES:
548 			rval = &(lc->int_p_cs_precedes);
549 			break;
550 		case KW_INT_P_SEP_BY_SPACE:
551 			rval = &(lc->int_p_sep_by_space);
552 			break;
553 		case KW_INT_N_CS_PRECEDES:
554 			rval = &(lc->int_n_cs_precedes);
555 			break;
556 		case KW_INT_N_SEP_BY_SPACE:
557 			rval = &(lc->int_n_sep_by_space);
558 			break;
559 		case KW_INT_P_SIGN_POSN:
560 			rval = &(lc->int_p_sign_posn);
561 			break;
562 		case KW_INT_N_SIGN_POSN:
563 			rval = &(lc->int_n_sign_posn);
564 			break;
565 		default:
566 			break;
567 	}
568 	return (rval);
569 }
570 
571 /*
572  * keyword value and properties lookup
573  */
574 int
575 kwval_lookup(char *kwname, char **kwval, int *cat, int *isstr)
576 {
577 	int	rval;
578 	size_t	i;
579 
580 	rval = 0;
581 	for (i = 0; i < NKWINFO; i++) {
582 		if (strcasecmp(kwname, kwinfo[i].name) == 0) {
583 			rval = 1;
584 			*cat = kwinfo[i].catid;
585 			*isstr = kwinfo[i].isstr;
586 			if (kwinfo[i].value_ref < KW_ZERO) {
587 				*kwval = nl_langinfo(kwinfo[i].value_ref);
588 			} else {
589 				*kwval = kwval_lconv(kwinfo[i].value_ref);
590 			}
591 			break;
592 		}
593 	}
594 
595 	return (rval);
596 }
597 
598 /*
599  * Show details about requested keyword according to '-k' and/or '-c'
600  * command line options specified.
601  */
602 void
603 showdetails(char *kw)
604 {
605 	int	isstr, cat, tmpval;
606 	char	*kwval;
607 
608 	if (kwval_lookup(kw, &kwval, &cat, &isstr) == 0) {
609 		/*
610 		 * invalid keyword specified.
611 		 * XXX: any actions?
612 		 */
613 		fprintf(stderr, "Unknown keyword: `%s'\n", kw);
614 		return;
615 	}
616 
617 	if (prt_categories) {
618 		printf("%s\n", lookup_localecat(cat));
619 	}
620 
621 	if (prt_keywords) {
622 		if (isstr) {
623 			printf("%s=\"%s\"\n", kw, kwval);
624 		} else {
625 			tmpval = (char) *kwval;
626 			printf("%s=%d\n", kw, tmpval);
627 		}
628 	}
629 
630 	if (!prt_categories && !prt_keywords) {
631 		if (isstr) {
632 			printf("%s\n", kwval);
633 		} else {
634 			tmpval = (char) *kwval;
635 			printf("%d\n", tmpval);
636 		}
637 	}
638 }
639 
640 /*
641  * Convert locale category id into string
642  */
643 const char *
644 lookup_localecat(int cat)
645 {
646 	size_t	i;
647 
648 	for (i = 0; i < NLCINFO; i++)
649 		if (lcinfo[i].id == cat) {
650 			return (lcinfo[i].name);
651 		}
652 	return ("UNKNOWN");
653 }
654 
655 /*
656  * Show list of keywords
657  */
658 void
659 showkeywordslist(char *substring)
660 {
661 	size_t	i;
662 
663 #define FMT "%-20s %-12s %-7s %-20s\n"
664 
665 	if (substring == NULL)
666 		printf("List of available keywords\n\n");
667 	else
668 		printf("List of available keywords starting with '%s'\n\n",
669 		    substring);
670 	printf(FMT, "Keyword", "Category", "Type", "Comment");
671 	printf("-------------------- ------------ ------- --------------------\n");
672 	for (i = 0; i < NKWINFO; i++) {
673 		if (substring != NULL) {
674 			if (strncmp(kwinfo[i].name, substring,
675 			    strlen(substring)) != 0)
676 				continue;
677 		}
678 		printf(FMT,
679 			kwinfo[i].name,
680 			lookup_localecat(kwinfo[i].catid),
681 			(kwinfo[i].isstr == 0) ? "number" : "string",
682 			kwinfo[i].comment);
683 	}
684 }
685