xref: /freebsd/usr.bin/locale/locale.c (revision 3157ba21)
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 	{ "am_str",		1, LC_TIME,	AM_STR, "" },
153 	{ "pm_str",		1, LC_TIME,	PM_STR, "" },
154 	{ "t_fmt_ampm",		1, LC_TIME,	T_FMT_AMPM, "" },
155 	{ "day_1",		1, LC_TIME,	DAY_1, "" },
156 	{ "day_2",		1, LC_TIME,	DAY_2, "" },
157 	{ "day_3",		1, LC_TIME,	DAY_3, "" },
158 	{ "day_4",		1, LC_TIME,	DAY_4, "" },
159 	{ "day_5",		1, LC_TIME,	DAY_5, "" },
160 	{ "day_6",		1, LC_TIME,	DAY_6, "" },
161 	{ "day_7",		1, LC_TIME,	DAY_7, "" },
162 	{ "abday_1",		1, LC_TIME,	ABDAY_1, "" },
163 	{ "abday_2",		1, LC_TIME,	ABDAY_2, "" },
164 	{ "abday_3",		1, LC_TIME,	ABDAY_3, "" },
165 	{ "abday_4",		1, LC_TIME,	ABDAY_4, "" },
166 	{ "abday_5",		1, LC_TIME,	ABDAY_5, "" },
167 	{ "abday_6",		1, LC_TIME,	ABDAY_6, "" },
168 	{ "abday_7",		1, LC_TIME,	ABDAY_7, "" },
169 	{ "mon_1",		1, LC_TIME,	MON_1, "" },
170 	{ "mon_2",		1, LC_TIME,	MON_2, "" },
171 	{ "mon_3",		1, LC_TIME,	MON_3, "" },
172 	{ "mon_4",		1, LC_TIME,	MON_4, "" },
173 	{ "mon_5",		1, LC_TIME,	MON_5, "" },
174 	{ "mon_6",		1, LC_TIME,	MON_6, "" },
175 	{ "mon_7",		1, LC_TIME,	MON_7, "" },
176 	{ "mon_8",		1, LC_TIME,	MON_8, "" },
177 	{ "mon_9",		1, LC_TIME,	MON_9, "" },
178 	{ "mon_10",		1, LC_TIME,	MON_10, "" },
179 	{ "mon_11",		1, LC_TIME,	MON_11, "" },
180 	{ "mon_12",		1, LC_TIME,	MON_12, "" },
181 	{ "abmon_1",		1, LC_TIME,	ABMON_1, "" },
182 	{ "abmon_2",		1, LC_TIME,	ABMON_2, "" },
183 	{ "abmon_3",		1, LC_TIME,	ABMON_3, "" },
184 	{ "abmon_4",		1, LC_TIME,	ABMON_4, "" },
185 	{ "abmon_5",		1, LC_TIME,	ABMON_5, "" },
186 	{ "abmon_6",		1, LC_TIME,	ABMON_6, "" },
187 	{ "abmon_7",		1, LC_TIME,	ABMON_7, "" },
188 	{ "abmon_8",		1, LC_TIME,	ABMON_8, "" },
189 	{ "abmon_9",		1, LC_TIME,	ABMON_9, "" },
190 	{ "abmon_10",		1, LC_TIME,	ABMON_10, "" },
191 	{ "abmon_11",		1, LC_TIME,	ABMON_11, "" },
192 	{ "abmon_12",		1, LC_TIME,	ABMON_12, "" },
193 	{ "altmon_1",		1, LC_TIME,	ALTMON_1, "(FreeBSD only)" },
194 	{ "altmon_2",		1, LC_TIME,	ALTMON_2, "(FreeBSD only)" },
195 	{ "altmon_3",		1, LC_TIME,	ALTMON_3, "(FreeBSD only)" },
196 	{ "altmon_4",		1, LC_TIME,	ALTMON_4, "(FreeBSD only)" },
197 	{ "altmon_5",		1, LC_TIME,	ALTMON_5, "(FreeBSD only)" },
198 	{ "altmon_6",		1, LC_TIME,	ALTMON_6, "(FreeBSD only)" },
199 	{ "altmon_7",		1, LC_TIME,	ALTMON_7, "(FreeBSD only)" },
200 	{ "altmon_8",		1, LC_TIME,	ALTMON_8, "(FreeBSD only)" },
201 	{ "altmon_9",		1, LC_TIME,	ALTMON_9, "(FreeBSD only)" },
202 	{ "altmon_10",		1, LC_TIME,	ALTMON_10, "(FreeBSD only)" },
203 	{ "altmon_11",		1, LC_TIME,	ALTMON_11, "(FreeBSD only)" },
204 	{ "altmon_12",		1, LC_TIME,	ALTMON_12, "(FreeBSD only)" },
205 	{ "era",		1, LC_TIME,	ERA, "(unavailable)" },
206 	{ "era_d_fmt",		1, LC_TIME,	ERA_D_FMT, "(unavailable)" },
207 	{ "era_d_t_fmt",	1, LC_TIME,	ERA_D_T_FMT, "(unavailable)" },
208 	{ "era_t_fmt",		1, LC_TIME,	ERA_T_FMT, "(unavailable)" },
209 	{ "alt_digits",		1, LC_TIME,	ALT_DIGITS, "" },
210 	{ "d_md_order",		1, LC_TIME,	D_MD_ORDER,
211 	  "(FreeBSD only)"				},	/* local */
212 
213 	{ "yesexpr",		1, LC_MESSAGES, YESEXPR, "" },
214 	{ "noexpr",		1, LC_MESSAGES, NOEXPR, "" },
215 	{ "yesstr",		1, LC_MESSAGES, YESSTR,
216 	  "(POSIX legacy)" },					/* compat */
217 	{ "nostr",		1, LC_MESSAGES, NOSTR,
218 	  "(POSIX legacy)" }					/* compat */
219 
220 };
221 #define NKWINFO (sizeof(kwinfo)/sizeof(kwinfo[0]))
222 
223 const char *boguslocales[] = { "UTF-8" };
224 #define	NBOGUS	(sizeof(boguslocales)/sizeof(boguslocales[0]))
225 
226 int
227 main(int argc, char *argv[])
228 {
229 	int	ch;
230 	int	tmp;
231 
232 	while ((ch = getopt(argc, argv, "ackms:")) != -1) {
233 		switch (ch) {
234 		case 'a':
235 			all_locales = 1;
236 			break;
237 		case 'c':
238 			prt_categories = 1;
239 			break;
240 		case 'k':
241 			prt_keywords = 1;
242 			break;
243 		case 'm':
244 			all_charmaps = 1;
245 			break;
246 		default:
247 			usage();
248 		}
249 	}
250 	argc -= optind;
251 	argv += optind;
252 
253 	/* validate arguments */
254 	if (all_locales && all_charmaps)
255 		usage();
256 	if ((all_locales || all_charmaps) && argc > 0)
257 		usage();
258 	if ((all_locales || all_charmaps) && (prt_categories || prt_keywords))
259 		usage();
260 	if ((prt_categories || prt_keywords) && argc <= 0)
261 		usage();
262 
263 	/* process '-a' */
264 	if (all_locales) {
265 		list_locales();
266 		exit(0);
267 	}
268 
269 	/* process '-m' */
270 	if (all_charmaps) {
271 		list_charmaps();
272 		exit(0);
273 	}
274 
275 	/* check for special case '-k list' */
276 	tmp = 0;
277 	if (prt_keywords && argc > 0)
278 		while (tmp < argc)
279 			if (strcasecmp(argv[tmp++], "list") == 0) {
280 				showkeywordslist(argv[tmp]);
281 				exit(0);
282 			}
283 
284 	/* process '-c' and/or '-k' */
285 	if (prt_categories || prt_keywords || argc > 0) {
286 		setlocale(LC_ALL, "");
287 		while (argc > 0) {
288 			showdetails(*argv);
289 			argv++;
290 			argc--;
291 		}
292 		exit(0);
293 	}
294 
295 	/* no arguments, show current locale state */
296 	showlocale();
297 
298 	return (0);
299 }
300 
301 void
302 usage(void)
303 {
304 	printf("Usage: locale [ -a | -m ]\n"
305                "       locale -k list [prefix]\n"
306                "       locale [ -ck ] keyword ...\n");
307 	exit(1);
308 }
309 
310 /*
311  * Output information about all available locales
312  *
313  * XXX actually output of this function does not guarantee that locale
314  *     is really available to application, since it can be broken or
315  *     inconsistent thus setlocale() will fail.  Maybe add '-V' function to
316  *     also validate these locales?
317  */
318 void
319 list_locales(void)
320 {
321 	size_t i;
322 
323 	init_locales_list();
324 	for (i = 0; i < locales->sl_cur; i++) {
325 		printf("%s\n", locales->sl_str[i]);
326 	}
327 }
328 
329 /*
330  * qsort() helper function
331  */
332 static int
333 scmp(const void *s1, const void *s2)
334 {
335 	return strcmp(*(const char **)s1, *(const char **)s2);
336 }
337 
338 /*
339  * Output information about all available charmaps
340  *
341  * XXX this function is doing a task in hackish way, i.e. by scaning
342  *     list of locales, spliting their codeset part and building list of
343  *     them.
344  */
345 void
346 list_charmaps(void)
347 {
348 	size_t i;
349 	char *s, *cs;
350 	StringList *charmaps;
351 
352 	/* initialize StringList */
353 	charmaps = sl_init();
354 	if (charmaps == NULL)
355 		err(1, "could not allocate memory");
356 
357 	/* fetch locales list */
358 	init_locales_list();
359 
360 	/* split codesets and build their list */
361 	for (i = 0; i < locales->sl_cur; i++) {
362 		s = locales->sl_str[i];
363 		if ((cs = strchr(s, '.')) != NULL) {
364 			cs++;
365 			if (sl_find(charmaps, cs) == NULL)
366 				sl_add(charmaps, cs);
367 		}
368 	}
369 
370 	/* add US-ASCII, if not yet added */
371 	if (sl_find(charmaps, "US-ASCII") == NULL)
372 		sl_add(charmaps, "US-ASCII");
373 
374 	/* sort the list */
375 	qsort(charmaps->sl_str, charmaps->sl_cur, sizeof(char *), scmp);
376 
377 	/* print results */
378 	for (i = 0; i < charmaps->sl_cur; i++) {
379 		printf("%s\n", charmaps->sl_str[i]);
380 	}
381 }
382 
383 /*
384  * Retrieve sorted list of system locales (or user locales, if PATH_LOCALE
385  * environment variable is set)
386  */
387 void
388 init_locales_list(void)
389 {
390 	DIR *dirp;
391 	struct dirent *dp;
392 	size_t i;
393 	int bogus;
394 
395 	/* why call this function twice ? */
396 	if (locales != NULL)
397 		return;
398 
399 	/* initialize StringList */
400 	locales = sl_init();
401 	if (locales == NULL)
402 		err(1, "could not allocate memory");
403 
404 	/* get actual locales directory name */
405 	if (__detect_path_locale() != 0)
406 		err(1, "unable to find locales storage");
407 
408 	/* open locales directory */
409 	dirp = opendir(_PathLocale);
410 	if (dirp == NULL)
411 		err(1, "could not open directory '%s'", _PathLocale);
412 
413 	/* scan directory and store its contents except "." and ".." */
414 	while ((dp = readdir(dirp)) != NULL) {
415 		if (*(dp->d_name) == '.')
416 			continue;		/* exclude "." and ".." */
417 		for (bogus = i = 0; i < NBOGUS; i++)
418 			if (strncmp(dp->d_name, boguslocales[i],
419 			    strlen(boguslocales[i])) == 0)
420 				bogus = 1;
421 		if (!bogus)
422 			sl_add(locales, strdup(dp->d_name));
423 	}
424 	closedir(dirp);
425 
426         /* make sure that 'POSIX' and 'C' locales are present in the list.
427 	 * POSIX 1003.1-2001 requires presence of 'POSIX' name only here, but
428          * we also list 'C' for constistency
429          */
430 	if (sl_find(locales, "POSIX") == NULL)
431 		sl_add(locales, "POSIX");
432 
433 	if (sl_find(locales, "C") == NULL)
434 		sl_add(locales, "C");
435 
436 	/* make output nicer, sort the list */
437 	qsort(locales->sl_str, locales->sl_cur, sizeof(char *), scmp);
438 }
439 
440 /*
441  * Show current locale status, depending on environment variables
442  */
443 void
444 showlocale(void)
445 {
446 	size_t	i;
447 	const char *lang, *vval, *eval;
448 
449 	setlocale(LC_ALL, "");
450 
451 	lang = getenv("LANG");
452 	if (lang == NULL) {
453 		lang = "";
454 	}
455 	printf("LANG=%s\n", lang);
456 	/* XXX: if LANG is null, then set it to "C" to get implied values? */
457 
458 	for (i = 0; i < NLCINFO; i++) {
459 		vval = setlocale(lcinfo[i].id, NULL);
460 		eval = getenv(lcinfo[i].name);
461 		if (eval != NULL && !strcmp(eval, vval)
462 				&& strcmp(lang, vval)) {
463 			/*
464 			 * Appropriate environment variable set, its value
465 			 * is valid and not overriden by LC_ALL
466 			 *
467 			 * XXX: possible side effect: if both LANG and
468 			 * overriden environment variable are set into same
469 			 * value, then it'll be assumed as 'implied'
470 			 */
471 			printf("%s=%s\n", lcinfo[i].name, vval);
472 		} else {
473 			printf("%s=\"%s\"\n", lcinfo[i].name, vval);
474 		}
475 	}
476 
477 	vval = getenv("LC_ALL");
478 	if (vval == NULL) {
479 		vval = "";
480 	}
481 	printf("LC_ALL=%s\n", vval);
482 }
483 
484 /*
485  * keyword value lookup helper (via localeconv())
486  */
487 char *
488 kwval_lconv(int id)
489 {
490 	struct lconv *lc;
491 	char *rval;
492 
493 	rval = NULL;
494 	lc = localeconv();
495 	switch (id) {
496 		case KW_GROUPING:
497 			rval = lc->grouping;
498 			break;
499 		case KW_INT_CURR_SYMBOL:
500 			rval = lc->int_curr_symbol;
501 			break;
502 		case KW_CURRENCY_SYMBOL:
503 			rval = lc->currency_symbol;
504 			break;
505 		case KW_MON_DECIMAL_POINT:
506 			rval = lc->mon_decimal_point;
507 			break;
508 		case KW_MON_THOUSANDS_SEP:
509 			rval = lc->mon_thousands_sep;
510 			break;
511 		case KW_MON_GROUPING:
512 			rval = lc->mon_grouping;
513 			break;
514 		case KW_POSITIVE_SIGN:
515 			rval = lc->positive_sign;
516 			break;
517 		case KW_NEGATIVE_SIGN:
518 			rval = lc->negative_sign;
519 			break;
520 		case KW_INT_FRAC_DIGITS:
521 			rval = &(lc->int_frac_digits);
522 			break;
523 		case KW_FRAC_DIGITS:
524 			rval = &(lc->frac_digits);
525 			break;
526 		case KW_P_CS_PRECEDES:
527 			rval = &(lc->p_cs_precedes);
528 			break;
529 		case KW_P_SEP_BY_SPACE:
530 			rval = &(lc->p_sep_by_space);
531 			break;
532 		case KW_N_CS_PRECEDES:
533 			rval = &(lc->n_cs_precedes);
534 			break;
535 		case KW_N_SEP_BY_SPACE:
536 			rval = &(lc->n_sep_by_space);
537 			break;
538 		case KW_P_SIGN_POSN:
539 			rval = &(lc->p_sign_posn);
540 			break;
541 		case KW_N_SIGN_POSN:
542 			rval = &(lc->n_sign_posn);
543 			break;
544 		case KW_INT_P_CS_PRECEDES:
545 			rval = &(lc->int_p_cs_precedes);
546 			break;
547 		case KW_INT_P_SEP_BY_SPACE:
548 			rval = &(lc->int_p_sep_by_space);
549 			break;
550 		case KW_INT_N_CS_PRECEDES:
551 			rval = &(lc->int_n_cs_precedes);
552 			break;
553 		case KW_INT_N_SEP_BY_SPACE:
554 			rval = &(lc->int_n_sep_by_space);
555 			break;
556 		case KW_INT_P_SIGN_POSN:
557 			rval = &(lc->int_p_sign_posn);
558 			break;
559 		case KW_INT_N_SIGN_POSN:
560 			rval = &(lc->int_n_sign_posn);
561 			break;
562 		default:
563 			break;
564 	}
565 	return (rval);
566 }
567 
568 /*
569  * keyword value and properties lookup
570  */
571 int
572 kwval_lookup(char *kwname, char **kwval, int *cat, int *isstr)
573 {
574 	int	rval;
575 	size_t	i;
576 
577 	rval = 0;
578 	for (i = 0; i < NKWINFO; i++) {
579 		if (strcasecmp(kwname, kwinfo[i].name) == 0) {
580 			rval = 1;
581 			*cat = kwinfo[i].catid;
582 			*isstr = kwinfo[i].isstr;
583 			if (kwinfo[i].value_ref < KW_ZERO) {
584 				*kwval = nl_langinfo(kwinfo[i].value_ref);
585 			} else {
586 				*kwval = kwval_lconv(kwinfo[i].value_ref);
587 			}
588 			break;
589 		}
590 	}
591 
592 	return (rval);
593 }
594 
595 /*
596  * Show details about requested keyword according to '-k' and/or '-c'
597  * command line options specified.
598  */
599 void
600 showdetails(char *kw)
601 {
602 	int	isstr, cat, tmpval;
603 	char	*kwval;
604 
605 	if (kwval_lookup(kw, &kwval, &cat, &isstr) == 0) {
606 		/*
607 		 * invalid keyword specified.
608 		 * XXX: any actions?
609 		 */
610 		fprintf(stderr, "Unknown keyword: `%s'\n", kw);
611 		return;
612 	}
613 
614 	if (prt_categories) {
615 		printf("%s\n", lookup_localecat(cat));
616 	}
617 
618 	if (prt_keywords) {
619 		if (isstr) {
620 			printf("%s=\"%s\"\n", kw, kwval);
621 		} else {
622 			tmpval = (char) *kwval;
623 			printf("%s=%d\n", kw, tmpval);
624 		}
625 	}
626 
627 	if (!prt_categories && !prt_keywords) {
628 		if (isstr) {
629 			printf("%s\n", kwval);
630 		} else {
631 			tmpval = (char) *kwval;
632 			printf("%d\n", tmpval);
633 		}
634 	}
635 }
636 
637 /*
638  * Convert locale category id into string
639  */
640 const char *
641 lookup_localecat(int cat)
642 {
643 	size_t	i;
644 
645 	for (i = 0; i < NLCINFO; i++)
646 		if (lcinfo[i].id == cat) {
647 			return (lcinfo[i].name);
648 		}
649 	return ("UNKNOWN");
650 }
651 
652 /*
653  * Show list of keywords
654  */
655 void
656 showkeywordslist(char *substring)
657 {
658 	size_t	i;
659 
660 #define FMT "%-20s %-12s %-7s %-20s\n"
661 
662 	if (substring == NULL)
663 		printf("List of available keywords\n\n");
664 	else
665 		printf("List of available keywords starting with '%s'\n\n",
666 		    substring);
667 	printf(FMT, "Keyword", "Category", "Type", "Comment");
668 	printf("-------------------- ------------ ------- --------------------\n");
669 	for (i = 0; i < NKWINFO; i++) {
670 		if (substring != NULL) {
671 			if (strncmp(kwinfo[i].name, substring,
672 			    strlen(substring)) != 0)
673 				continue;
674 		}
675 		printf(FMT,
676 			kwinfo[i].name,
677 			lookup_localecat(kwinfo[i].catid),
678 			(kwinfo[i].isstr == 0) ? "number" : "string",
679 			kwinfo[i].comment);
680 	}
681 }
682