xref: /freebsd/usr.bin/locale/locale.c (revision b1f9167f94059fd55c630891d359bcff987bd7eb)
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 
261 	/* process '-a' */
262 	if (all_locales) {
263 		list_locales();
264 		exit(0);
265 	}
266 
267 	/* process '-m' */
268 	if (all_charmaps) {
269 		list_charmaps();
270 		exit(0);
271 	}
272 
273 	/* check for special case '-k list' */
274 	tmp = 0;
275 	if (prt_keywords && argc > 0)
276 		while (tmp < argc)
277 			if (strcasecmp(argv[tmp++], "list") == 0) {
278 				showkeywordslist(argv[tmp]);
279 				exit(0);
280 			}
281 
282 	/* process '-c', '-k', or command line arguments. */
283 	if (prt_categories || prt_keywords || argc > 0) {
284 		if (argc > 0) {
285 			setlocale(LC_ALL, "");
286 			while (argc > 0) {
287 				showdetails(*argv);
288 				argv++;
289 				argc--;
290 			}
291 		} else {
292 			uint i;
293 			for (i = 0; i < sizeof (kwinfo) / sizeof (struct _kwinfo); i++)
294 				showdetails ((char *)kwinfo [i].name);
295 		}
296 		exit(0);
297 	}
298 
299 	/* no arguments, show current locale state */
300 	showlocale();
301 
302 	return (0);
303 }
304 
305 void
306 usage(void)
307 {
308 	printf("Usage: locale [ -a | -m ]\n"
309 	       "       locale -k list [prefix]\n"
310 	       "       locale [ -ck ] [keyword ...]\n");
311 	exit(1);
312 }
313 
314 /*
315  * Output information about all available locales
316  *
317  * XXX actually output of this function does not guarantee that locale
318  *     is really available to application, since it can be broken or
319  *     inconsistent thus setlocale() will fail.  Maybe add '-V' function to
320  *     also validate these locales?
321  */
322 void
323 list_locales(void)
324 {
325 	size_t i;
326 
327 	init_locales_list();
328 	for (i = 0; i < locales->sl_cur; i++) {
329 		printf("%s\n", locales->sl_str[i]);
330 	}
331 }
332 
333 /*
334  * qsort() helper function
335  */
336 static int
337 scmp(const void *s1, const void *s2)
338 {
339 	return strcmp(*(const char **)s1, *(const char **)s2);
340 }
341 
342 /*
343  * Output information about all available charmaps
344  *
345  * XXX this function is doing a task in hackish way, i.e. by scaning
346  *     list of locales, spliting their codeset part and building list of
347  *     them.
348  */
349 void
350 list_charmaps(void)
351 {
352 	size_t i;
353 	char *s, *cs;
354 	StringList *charmaps;
355 
356 	/* initialize StringList */
357 	charmaps = sl_init();
358 	if (charmaps == NULL)
359 		err(1, "could not allocate memory");
360 
361 	/* fetch locales list */
362 	init_locales_list();
363 
364 	/* split codesets and build their list */
365 	for (i = 0; i < locales->sl_cur; i++) {
366 		s = locales->sl_str[i];
367 		if ((cs = strchr(s, '.')) != NULL) {
368 			cs++;
369 			if (sl_find(charmaps, cs) == NULL)
370 				sl_add(charmaps, cs);
371 		}
372 	}
373 
374 	/* add US-ASCII, if not yet added */
375 	if (sl_find(charmaps, "US-ASCII") == NULL)
376 		sl_add(charmaps, "US-ASCII");
377 
378 	/* sort the list */
379 	qsort(charmaps->sl_str, charmaps->sl_cur, sizeof(char *), scmp);
380 
381 	/* print results */
382 	for (i = 0; i < charmaps->sl_cur; i++) {
383 		printf("%s\n", charmaps->sl_str[i]);
384 	}
385 }
386 
387 /*
388  * Retrieve sorted list of system locales (or user locales, if PATH_LOCALE
389  * environment variable is set)
390  */
391 void
392 init_locales_list(void)
393 {
394 	DIR *dirp;
395 	struct dirent *dp;
396 	size_t i;
397 	int bogus;
398 
399 	/* why call this function twice ? */
400 	if (locales != NULL)
401 		return;
402 
403 	/* initialize StringList */
404 	locales = sl_init();
405 	if (locales == NULL)
406 		err(1, "could not allocate memory");
407 
408 	/* get actual locales directory name */
409 	if (__detect_path_locale() != 0)
410 		err(1, "unable to find locales storage");
411 
412 	/* open locales directory */
413 	dirp = opendir(_PathLocale);
414 	if (dirp == NULL)
415 		err(1, "could not open directory '%s'", _PathLocale);
416 
417 	/* scan directory and store its contents except "." and ".." */
418 	while ((dp = readdir(dirp)) != NULL) {
419 		if (*(dp->d_name) == '.')
420 			continue;		/* exclude "." and ".." */
421 		for (bogus = i = 0; i < NBOGUS; i++)
422 			if (strncmp(dp->d_name, boguslocales[i],
423 			    strlen(boguslocales[i])) == 0)
424 				bogus = 1;
425 		if (!bogus)
426 			sl_add(locales, strdup(dp->d_name));
427 	}
428 	closedir(dirp);
429 
430 	/* make sure that 'POSIX' and 'C' locales are present in the list.
431 	 * POSIX 1003.1-2001 requires presence of 'POSIX' name only here, but
432 	 * we also list 'C' for constistency
433 	 */
434 	if (sl_find(locales, "POSIX") == NULL)
435 		sl_add(locales, "POSIX");
436 
437 	if (sl_find(locales, "C") == NULL)
438 		sl_add(locales, "C");
439 
440 	/* make output nicer, sort the list */
441 	qsort(locales->sl_str, locales->sl_cur, sizeof(char *), scmp);
442 }
443 
444 /*
445  * Show current locale status, depending on environment variables
446  */
447 void
448 showlocale(void)
449 {
450 	size_t	i;
451 	const char *lang, *vval, *eval;
452 
453 	setlocale(LC_ALL, "");
454 
455 	lang = getenv("LANG");
456 	if (lang == NULL) {
457 		lang = "";
458 	}
459 	printf("LANG=%s\n", lang);
460 	/* XXX: if LANG is null, then set it to "C" to get implied values? */
461 
462 	for (i = 0; i < NLCINFO; i++) {
463 		vval = setlocale(lcinfo[i].id, NULL);
464 		eval = getenv(lcinfo[i].name);
465 		if (eval != NULL && !strcmp(eval, vval)
466 				&& strcmp(lang, vval)) {
467 			/*
468 			 * Appropriate environment variable set, its value
469 			 * is valid and not overriden by LC_ALL
470 			 *
471 			 * XXX: possible side effect: if both LANG and
472 			 * overriden environment variable are set into same
473 			 * value, then it'll be assumed as 'implied'
474 			 */
475 			printf("%s=%s\n", lcinfo[i].name, vval);
476 		} else {
477 			printf("%s=\"%s\"\n", lcinfo[i].name, vval);
478 		}
479 	}
480 
481 	vval = getenv("LC_ALL");
482 	if (vval == NULL) {
483 		vval = "";
484 	}
485 	printf("LC_ALL=%s\n", vval);
486 }
487 
488 /*
489  * keyword value lookup helper (via localeconv())
490  */
491 char *
492 kwval_lconv(int id)
493 {
494 	struct lconv *lc;
495 	char *rval;
496 
497 	rval = NULL;
498 	lc = localeconv();
499 	switch (id) {
500 		case KW_GROUPING:
501 			rval = lc->grouping;
502 			break;
503 		case KW_INT_CURR_SYMBOL:
504 			rval = lc->int_curr_symbol;
505 			break;
506 		case KW_CURRENCY_SYMBOL:
507 			rval = lc->currency_symbol;
508 			break;
509 		case KW_MON_DECIMAL_POINT:
510 			rval = lc->mon_decimal_point;
511 			break;
512 		case KW_MON_THOUSANDS_SEP:
513 			rval = lc->mon_thousands_sep;
514 			break;
515 		case KW_MON_GROUPING:
516 			rval = lc->mon_grouping;
517 			break;
518 		case KW_POSITIVE_SIGN:
519 			rval = lc->positive_sign;
520 			break;
521 		case KW_NEGATIVE_SIGN:
522 			rval = lc->negative_sign;
523 			break;
524 		case KW_INT_FRAC_DIGITS:
525 			rval = &(lc->int_frac_digits);
526 			break;
527 		case KW_FRAC_DIGITS:
528 			rval = &(lc->frac_digits);
529 			break;
530 		case KW_P_CS_PRECEDES:
531 			rval = &(lc->p_cs_precedes);
532 			break;
533 		case KW_P_SEP_BY_SPACE:
534 			rval = &(lc->p_sep_by_space);
535 			break;
536 		case KW_N_CS_PRECEDES:
537 			rval = &(lc->n_cs_precedes);
538 			break;
539 		case KW_N_SEP_BY_SPACE:
540 			rval = &(lc->n_sep_by_space);
541 			break;
542 		case KW_P_SIGN_POSN:
543 			rval = &(lc->p_sign_posn);
544 			break;
545 		case KW_N_SIGN_POSN:
546 			rval = &(lc->n_sign_posn);
547 			break;
548 		case KW_INT_P_CS_PRECEDES:
549 			rval = &(lc->int_p_cs_precedes);
550 			break;
551 		case KW_INT_P_SEP_BY_SPACE:
552 			rval = &(lc->int_p_sep_by_space);
553 			break;
554 		case KW_INT_N_CS_PRECEDES:
555 			rval = &(lc->int_n_cs_precedes);
556 			break;
557 		case KW_INT_N_SEP_BY_SPACE:
558 			rval = &(lc->int_n_sep_by_space);
559 			break;
560 		case KW_INT_P_SIGN_POSN:
561 			rval = &(lc->int_p_sign_posn);
562 			break;
563 		case KW_INT_N_SIGN_POSN:
564 			rval = &(lc->int_n_sign_posn);
565 			break;
566 		default:
567 			break;
568 	}
569 	return (rval);
570 }
571 
572 /*
573  * keyword value and properties lookup
574  */
575 int
576 kwval_lookup(char *kwname, char **kwval, int *cat, int *isstr)
577 {
578 	int	rval;
579 	size_t	i;
580 
581 	rval = 0;
582 	for (i = 0; i < NKWINFO; i++) {
583 		if (strcasecmp(kwname, kwinfo[i].name) == 0) {
584 			rval = 1;
585 			*cat = kwinfo[i].catid;
586 			*isstr = kwinfo[i].isstr;
587 			if (kwinfo[i].value_ref < KW_ZERO) {
588 				*kwval = nl_langinfo(kwinfo[i].value_ref);
589 			} else {
590 				*kwval = kwval_lconv(kwinfo[i].value_ref);
591 			}
592 			break;
593 		}
594 	}
595 
596 	return (rval);
597 }
598 
599 /*
600  * Show details about requested keyword according to '-k' and/or '-c'
601  * command line options specified.
602  */
603 void
604 showdetails(char *kw)
605 {
606 	int	isstr, cat, tmpval;
607 	char	*kwval;
608 
609 	if (kwval_lookup(kw, &kwval, &cat, &isstr) == 0) {
610 		/*
611 		 * invalid keyword specified.
612 		 * XXX: any actions?
613 		 */
614 		fprintf(stderr, "Unknown keyword: `%s'\n", kw);
615 		return;
616 	}
617 
618 	if (prt_categories) {
619 		  if (prt_keywords)
620 			printf("%-20s ", lookup_localecat(cat));
621 		  else
622 			printf("%-20s\t%s\n", kw, lookup_localecat(cat));
623 	}
624 
625 	if (prt_keywords) {
626 		if (isstr) {
627 			printf("%s=\"%s\"\n", kw, kwval);
628 		} else {
629 			tmpval = (char) *kwval;
630 			printf("%s=%d\n", kw, tmpval);
631 		}
632 	}
633 
634 	if (!prt_categories && !prt_keywords) {
635 		if (isstr) {
636 			printf("%s\n", kwval);
637 		} else {
638 			tmpval = (char) *kwval;
639 			printf("%d\n", tmpval);
640 		}
641 	}
642 }
643 
644 /*
645  * Convert locale category id into string
646  */
647 const char *
648 lookup_localecat(int cat)
649 {
650 	size_t	i;
651 
652 	for (i = 0; i < NLCINFO; i++)
653 		if (lcinfo[i].id == cat) {
654 			return (lcinfo[i].name);
655 		}
656 	return ("UNKNOWN");
657 }
658 
659 /*
660  * Show list of keywords
661  */
662 void
663 showkeywordslist(char *substring)
664 {
665 	size_t	i;
666 
667 #define	FMT "%-20s %-12s %-7s %-20s\n"
668 
669 	if (substring == NULL)
670 		printf("List of available keywords\n\n");
671 	else
672 		printf("List of available keywords starting with '%s'\n\n",
673 		    substring);
674 	printf(FMT, "Keyword", "Category", "Type", "Comment");
675 	printf("-------------------- ------------ ------- --------------------\n");
676 	for (i = 0; i < NKWINFO; i++) {
677 		if (substring != NULL) {
678 			if (strncmp(kwinfo[i].name, substring,
679 			    strlen(substring)) != 0)
680 				continue;
681 		}
682 		printf(FMT,
683 			kwinfo[i].name,
684 			lookup_localecat(kwinfo[i].catid),
685 			(kwinfo[i].isstr == 0) ? "number" : "string",
686 			kwinfo[i].comment);
687 	}
688 }
689