xref: /freebsd/usr.bin/locale/locale.c (revision 49dae58b287906be26f56ba3e3dc693c3ba8cf37)
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/param.h>
39 #include <sys/types.h>
40 
41 #include <dirent.h>
42 #include <err.h>
43 #include <locale.h>
44 #include <langinfo.h>
45 #include <stdio.h>
46 #include <stdlib.h>
47 #include <string.h>
48 #include <stringlist.h>
49 #include <unistd.h>
50 #include "setlocale.h"
51 
52 /* Local prototypes */
53 void	init_locales_list(void);
54 void	list_charmaps(void);
55 void	list_locales(void);
56 const char *lookup_localecat(int);
57 char	*kwval_lconv(int);
58 int	kwval_lookup(char *, char **, int *, int *);
59 void	showdetails(char *);
60 void	showkeywordslist(char *substring);
61 void	showlocale(void);
62 void	usage(void);
63 
64 /* Global variables */
65 static StringList *locales = NULL;
66 
67 int	all_locales = 0;
68 int	all_charmaps = 0;
69 int	prt_categories = 0;
70 int	prt_keywords = 0;
71 int	more_params = 0;
72 
73 struct _lcinfo {
74 	const char	*name;
75 	int		id;
76 } lcinfo [] = {
77 	{ "LC_CTYPE",		LC_CTYPE },
78 	{ "LC_COLLATE",		LC_COLLATE },
79 	{ "LC_TIME",		LC_TIME },
80 	{ "LC_NUMERIC",		LC_NUMERIC },
81 	{ "LC_MONETARY",	LC_MONETARY },
82 	{ "LC_MESSAGES",	LC_MESSAGES }
83 };
84 #define	NLCINFO nitems(lcinfo)
85 
86 /* ids for values not referenced by nl_langinfo() */
87 #define	KW_ZERO			10000
88 #define	KW_GROUPING		(KW_ZERO+1)
89 #define	KW_INT_CURR_SYMBOL	(KW_ZERO+2)
90 #define	KW_CURRENCY_SYMBOL	(KW_ZERO+3)
91 #define	KW_MON_DECIMAL_POINT	(KW_ZERO+4)
92 #define	KW_MON_THOUSANDS_SEP	(KW_ZERO+5)
93 #define	KW_MON_GROUPING		(KW_ZERO+6)
94 #define	KW_POSITIVE_SIGN	(KW_ZERO+7)
95 #define	KW_NEGATIVE_SIGN	(KW_ZERO+8)
96 #define	KW_INT_FRAC_DIGITS	(KW_ZERO+9)
97 #define	KW_FRAC_DIGITS		(KW_ZERO+10)
98 #define	KW_P_CS_PRECEDES	(KW_ZERO+11)
99 #define	KW_P_SEP_BY_SPACE	(KW_ZERO+12)
100 #define	KW_N_CS_PRECEDES	(KW_ZERO+13)
101 #define	KW_N_SEP_BY_SPACE	(KW_ZERO+14)
102 #define	KW_P_SIGN_POSN		(KW_ZERO+15)
103 #define	KW_N_SIGN_POSN		(KW_ZERO+16)
104 #define	KW_INT_P_CS_PRECEDES	(KW_ZERO+17)
105 #define	KW_INT_P_SEP_BY_SPACE	(KW_ZERO+18)
106 #define	KW_INT_N_CS_PRECEDES	(KW_ZERO+19)
107 #define	KW_INT_N_SEP_BY_SPACE	(KW_ZERO+20)
108 #define	KW_INT_P_SIGN_POSN	(KW_ZERO+21)
109 #define	KW_INT_N_SIGN_POSN	(KW_ZERO+22)
110 
111 struct _kwinfo {
112 	const char	*name;
113 	int		isstr;		/* true - string, false - number */
114 	int		catid;		/* LC_* */
115 	int		value_ref;
116 	const char	*comment;
117 } kwinfo [] = {
118 	{ "charmap",		1, LC_CTYPE,	CODESET, "" },	/* hack */
119 
120 	{ "decimal_point",	1, LC_NUMERIC,	RADIXCHAR, "" },
121 	{ "thousands_sep",	1, LC_NUMERIC,	THOUSEP, "" },
122 	{ "grouping",		1, LC_NUMERIC,	KW_GROUPING, "" },
123 	{ "radixchar",		1, LC_NUMERIC,	RADIXCHAR,
124 	  "Same as decimal_point (FreeBSD only)" },		/* compat */
125 	{ "thousep",		1, LC_NUMERIC,	THOUSEP,
126 	  "Same as thousands_sep (FreeBSD only)" },		/* compat */
127 
128 	{ "int_curr_symbol",	1, LC_MONETARY,	KW_INT_CURR_SYMBOL, "" },
129 	{ "currency_symbol",	1, LC_MONETARY,	KW_CURRENCY_SYMBOL, "" },
130 	{ "mon_decimal_point",	1, LC_MONETARY,	KW_MON_DECIMAL_POINT, "" },
131 	{ "mon_thousands_sep",	1, LC_MONETARY,	KW_MON_THOUSANDS_SEP, "" },
132 	{ "mon_grouping",	1, LC_MONETARY,	KW_MON_GROUPING, "" },
133 	{ "positive_sign",	1, LC_MONETARY,	KW_POSITIVE_SIGN, "" },
134 	{ "negative_sign",	1, LC_MONETARY,	KW_NEGATIVE_SIGN, "" },
135 
136 	{ "int_frac_digits",	0, LC_MONETARY,	KW_INT_FRAC_DIGITS, "" },
137 	{ "frac_digits",	0, LC_MONETARY,	KW_FRAC_DIGITS, "" },
138 	{ "p_cs_precedes",	0, LC_MONETARY,	KW_P_CS_PRECEDES, "" },
139 	{ "p_sep_by_space",	0, LC_MONETARY,	KW_P_SEP_BY_SPACE, "" },
140 	{ "n_cs_precedes",	0, LC_MONETARY,	KW_N_CS_PRECEDES, "" },
141 	{ "n_sep_by_space",	0, LC_MONETARY,	KW_N_SEP_BY_SPACE, "" },
142 	{ "p_sign_posn",	0, LC_MONETARY,	KW_P_SIGN_POSN, "" },
143 	{ "n_sign_posn",	0, LC_MONETARY,	KW_N_SIGN_POSN, "" },
144 	{ "int_p_cs_precedes",	0, LC_MONETARY,	KW_INT_P_CS_PRECEDES, "" },
145 	{ "int_p_sep_by_space",	0, LC_MONETARY,	KW_INT_P_SEP_BY_SPACE, "" },
146 	{ "int_n_cs_precedes",	0, LC_MONETARY,	KW_INT_N_CS_PRECEDES, "" },
147 	{ "int_n_sep_by_space",	0, LC_MONETARY,	KW_INT_N_SEP_BY_SPACE, "" },
148 	{ "int_p_sign_posn",	0, LC_MONETARY,	KW_INT_P_SIGN_POSN, "" },
149 	{ "int_n_sign_posn",	0, LC_MONETARY,	KW_INT_N_SIGN_POSN, "" },
150 
151 	{ "d_t_fmt",		1, LC_TIME,	D_T_FMT, "" },
152 	{ "d_fmt",		1, LC_TIME,	D_FMT, "" },
153 	{ "t_fmt",		1, LC_TIME,	T_FMT, "" },
154 	{ "am_str",		1, LC_TIME,	AM_STR, "" },
155 	{ "pm_str",		1, LC_TIME,	PM_STR, "" },
156 	{ "t_fmt_ampm",		1, LC_TIME,	T_FMT_AMPM, "" },
157 	{ "day_1",		1, LC_TIME,	DAY_1, "" },
158 	{ "day_2",		1, LC_TIME,	DAY_2, "" },
159 	{ "day_3",		1, LC_TIME,	DAY_3, "" },
160 	{ "day_4",		1, LC_TIME,	DAY_4, "" },
161 	{ "day_5",		1, LC_TIME,	DAY_5, "" },
162 	{ "day_6",		1, LC_TIME,	DAY_6, "" },
163 	{ "day_7",		1, LC_TIME,	DAY_7, "" },
164 	{ "abday_1",		1, LC_TIME,	ABDAY_1, "" },
165 	{ "abday_2",		1, LC_TIME,	ABDAY_2, "" },
166 	{ "abday_3",		1, LC_TIME,	ABDAY_3, "" },
167 	{ "abday_4",		1, LC_TIME,	ABDAY_4, "" },
168 	{ "abday_5",		1, LC_TIME,	ABDAY_5, "" },
169 	{ "abday_6",		1, LC_TIME,	ABDAY_6, "" },
170 	{ "abday_7",		1, LC_TIME,	ABDAY_7, "" },
171 	{ "mon_1",		1, LC_TIME,	MON_1, "" },
172 	{ "mon_2",		1, LC_TIME,	MON_2, "" },
173 	{ "mon_3",		1, LC_TIME,	MON_3, "" },
174 	{ "mon_4",		1, LC_TIME,	MON_4, "" },
175 	{ "mon_5",		1, LC_TIME,	MON_5, "" },
176 	{ "mon_6",		1, LC_TIME,	MON_6, "" },
177 	{ "mon_7",		1, LC_TIME,	MON_7, "" },
178 	{ "mon_8",		1, LC_TIME,	MON_8, "" },
179 	{ "mon_9",		1, LC_TIME,	MON_9, "" },
180 	{ "mon_10",		1, LC_TIME,	MON_10, "" },
181 	{ "mon_11",		1, LC_TIME,	MON_11, "" },
182 	{ "mon_12",		1, LC_TIME,	MON_12, "" },
183 	{ "abmon_1",		1, LC_TIME,	ABMON_1, "" },
184 	{ "abmon_2",		1, LC_TIME,	ABMON_2, "" },
185 	{ "abmon_3",		1, LC_TIME,	ABMON_3, "" },
186 	{ "abmon_4",		1, LC_TIME,	ABMON_4, "" },
187 	{ "abmon_5",		1, LC_TIME,	ABMON_5, "" },
188 	{ "abmon_6",		1, LC_TIME,	ABMON_6, "" },
189 	{ "abmon_7",		1, LC_TIME,	ABMON_7, "" },
190 	{ "abmon_8",		1, LC_TIME,	ABMON_8, "" },
191 	{ "abmon_9",		1, LC_TIME,	ABMON_9, "" },
192 	{ "abmon_10",		1, LC_TIME,	ABMON_10, "" },
193 	{ "abmon_11",		1, LC_TIME,	ABMON_11, "" },
194 	{ "abmon_12",		1, LC_TIME,	ABMON_12, "" },
195 	{ "altmon_1",		1, LC_TIME,	ALTMON_1, "(FreeBSD only)" },
196 	{ "altmon_2",		1, LC_TIME,	ALTMON_2, "(FreeBSD only)" },
197 	{ "altmon_3",		1, LC_TIME,	ALTMON_3, "(FreeBSD only)" },
198 	{ "altmon_4",		1, LC_TIME,	ALTMON_4, "(FreeBSD only)" },
199 	{ "altmon_5",		1, LC_TIME,	ALTMON_5, "(FreeBSD only)" },
200 	{ "altmon_6",		1, LC_TIME,	ALTMON_6, "(FreeBSD only)" },
201 	{ "altmon_7",		1, LC_TIME,	ALTMON_7, "(FreeBSD only)" },
202 	{ "altmon_8",		1, LC_TIME,	ALTMON_8, "(FreeBSD only)" },
203 	{ "altmon_9",		1, LC_TIME,	ALTMON_9, "(FreeBSD only)" },
204 	{ "altmon_10",		1, LC_TIME,	ALTMON_10, "(FreeBSD only)" },
205 	{ "altmon_11",		1, LC_TIME,	ALTMON_11, "(FreeBSD only)" },
206 	{ "altmon_12",		1, LC_TIME,	ALTMON_12, "(FreeBSD only)" },
207 	{ "era",		1, LC_TIME,	ERA, "(unavailable)" },
208 	{ "era_d_fmt",		1, LC_TIME,	ERA_D_FMT, "(unavailable)" },
209 	{ "era_d_t_fmt",	1, LC_TIME,	ERA_D_T_FMT, "(unavailable)" },
210 	{ "era_t_fmt",		1, LC_TIME,	ERA_T_FMT, "(unavailable)" },
211 	{ "alt_digits",		1, LC_TIME,	ALT_DIGITS, "" },
212 	{ "d_md_order",		1, LC_TIME,	D_MD_ORDER,
213 	  "(FreeBSD only)"				},	/* local */
214 
215 	{ "yesexpr",		1, LC_MESSAGES, YESEXPR, "" },
216 	{ "noexpr",		1, LC_MESSAGES, NOEXPR, "" },
217 	{ "yesstr",		1, LC_MESSAGES, YESSTR,
218 	  "(POSIX legacy)" },					/* compat */
219 	{ "nostr",		1, LC_MESSAGES, NOSTR,
220 	  "(POSIX legacy)" }					/* compat */
221 
222 };
223 #define	NKWINFO (sizeof(kwinfo)/sizeof(kwinfo[0]))
224 
225 const char *boguslocales[] = { "UTF-8" };
226 #define	NBOGUS	(sizeof(boguslocales)/sizeof(boguslocales[0]))
227 
228 int
229 main(int argc, char *argv[])
230 {
231 	int	ch;
232 	int	tmp;
233 
234 	while ((ch = getopt(argc, argv, "ackms:")) != -1) {
235 		switch (ch) {
236 		case 'a':
237 			all_locales = 1;
238 			break;
239 		case 'c':
240 			prt_categories = 1;
241 			break;
242 		case 'k':
243 			prt_keywords = 1;
244 			break;
245 		case 'm':
246 			all_charmaps = 1;
247 			break;
248 		default:
249 			usage();
250 		}
251 	}
252 	argc -= optind;
253 	argv += optind;
254 
255 	/* validate arguments */
256 	if (all_locales && all_charmaps)
257 		usage();
258 	if ((all_locales || all_charmaps) && argc > 0)
259 		usage();
260 	if ((all_locales || all_charmaps) && (prt_categories || prt_keywords))
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', '-k', or command line arguments. */
285 	if (prt_categories || prt_keywords || argc > 0) {
286 		if (argc > 0) {
287 			setlocale(LC_ALL, "");
288 			while (argc > 0) {
289 				showdetails(*argv);
290 				argv++;
291 				argc--;
292 			}
293 		} else {
294 			uint i;
295 			for (i = 0; i < nitems(kwinfo); i++)
296 				showdetails ((char *)kwinfo [i].name);
297 		}
298 		exit(0);
299 	}
300 
301 	/* no arguments, show current locale state */
302 	showlocale();
303 
304 	return (0);
305 }
306 
307 void
308 usage(void)
309 {
310 	printf("Usage: locale [ -a | -m ]\n"
311 	       "       locale -k list [prefix]\n"
312 	       "       locale [ -ck ] [keyword ...]\n");
313 	exit(1);
314 }
315 
316 /*
317  * Output information about all available locales
318  *
319  * XXX actually output of this function does not guarantee that locale
320  *     is really available to application, since it can be broken or
321  *     inconsistent thus setlocale() will fail.  Maybe add '-V' function to
322  *     also validate these locales?
323  */
324 void
325 list_locales(void)
326 {
327 	size_t i;
328 
329 	init_locales_list();
330 	for (i = 0; i < locales->sl_cur; i++) {
331 		printf("%s\n", locales->sl_str[i]);
332 	}
333 }
334 
335 /*
336  * qsort() helper function
337  */
338 static int
339 scmp(const void *s1, const void *s2)
340 {
341 	return strcmp(*(const char **)s1, *(const char **)s2);
342 }
343 
344 /*
345  * Output information about all available charmaps
346  *
347  * XXX this function is doing a task in hackish way, i.e. by scaning
348  *     list of locales, spliting their codeset part and building list of
349  *     them.
350  */
351 void
352 list_charmaps(void)
353 {
354 	size_t i;
355 	char *s, *cs;
356 	StringList *charmaps;
357 
358 	/* initialize StringList */
359 	charmaps = sl_init();
360 	if (charmaps == NULL)
361 		err(1, "could not allocate memory");
362 
363 	/* fetch locales list */
364 	init_locales_list();
365 
366 	/* split codesets and build their list */
367 	for (i = 0; i < locales->sl_cur; i++) {
368 		s = locales->sl_str[i];
369 		if ((cs = strchr(s, '.')) != NULL) {
370 			cs++;
371 			if (sl_find(charmaps, cs) == NULL)
372 				sl_add(charmaps, cs);
373 		}
374 	}
375 
376 	/* add US-ASCII, if not yet added */
377 	if (sl_find(charmaps, "US-ASCII") == NULL)
378 		sl_add(charmaps, "US-ASCII");
379 
380 	/* sort the list */
381 	qsort(charmaps->sl_str, charmaps->sl_cur, sizeof(char *), scmp);
382 
383 	/* print results */
384 	for (i = 0; i < charmaps->sl_cur; i++) {
385 		printf("%s\n", charmaps->sl_str[i]);
386 	}
387 }
388 
389 /*
390  * Retrieve sorted list of system locales (or user locales, if PATH_LOCALE
391  * environment variable is set)
392  */
393 void
394 init_locales_list(void)
395 {
396 	DIR *dirp;
397 	struct dirent *dp;
398 	size_t i;
399 	int bogus;
400 
401 	/* why call this function twice ? */
402 	if (locales != NULL)
403 		return;
404 
405 	/* initialize StringList */
406 	locales = sl_init();
407 	if (locales == NULL)
408 		err(1, "could not allocate memory");
409 
410 	/* get actual locales directory name */
411 	if (__detect_path_locale() != 0)
412 		err(1, "unable to find locales storage");
413 
414 	/* open locales directory */
415 	dirp = opendir(_PathLocale);
416 	if (dirp == NULL)
417 		err(1, "could not open directory '%s'", _PathLocale);
418 
419 	/* scan directory and store its contents except "." and ".." */
420 	while ((dp = readdir(dirp)) != NULL) {
421 		if (*(dp->d_name) == '.')
422 			continue;		/* exclude "." and ".." */
423 		for (bogus = i = 0; i < NBOGUS; i++)
424 			if (strncmp(dp->d_name, boguslocales[i],
425 			    strlen(boguslocales[i])) == 0)
426 				bogus = 1;
427 		if (!bogus)
428 			sl_add(locales, strdup(dp->d_name));
429 	}
430 	closedir(dirp);
431 
432 	/* make sure that 'POSIX' and 'C' locales are present in the list.
433 	 * POSIX 1003.1-2001 requires presence of 'POSIX' name only here, but
434 	 * we also list 'C' for constistency
435 	 */
436 	if (sl_find(locales, "POSIX") == NULL)
437 		sl_add(locales, "POSIX");
438 
439 	if (sl_find(locales, "C") == NULL)
440 		sl_add(locales, "C");
441 
442 	/* make output nicer, sort the list */
443 	qsort(locales->sl_str, locales->sl_cur, sizeof(char *), scmp);
444 }
445 
446 /*
447  * Show current locale status, depending on environment variables
448  */
449 void
450 showlocale(void)
451 {
452 	size_t	i;
453 	const char *lang, *vval, *eval;
454 
455 	setlocale(LC_ALL, "");
456 
457 	lang = getenv("LANG");
458 	if (lang == NULL) {
459 		lang = "";
460 	}
461 	printf("LANG=%s\n", lang);
462 	/* XXX: if LANG is null, then set it to "C" to get implied values? */
463 
464 	for (i = 0; i < NLCINFO; i++) {
465 		vval = setlocale(lcinfo[i].id, NULL);
466 		eval = getenv(lcinfo[i].name);
467 		if (eval != NULL && !strcmp(eval, vval)
468 				&& strcmp(lang, vval)) {
469 			/*
470 			 * Appropriate environment variable set, its value
471 			 * is valid and not overridden by LC_ALL
472 			 *
473 			 * XXX: possible side effect: if both LANG and
474 			 * overridden environment variable are set into same
475 			 * value, then it'll be assumed as 'implied'
476 			 */
477 			printf("%s=%s\n", lcinfo[i].name, vval);
478 		} else {
479 			printf("%s=\"%s\"\n", lcinfo[i].name, vval);
480 		}
481 	}
482 
483 	vval = getenv("LC_ALL");
484 	if (vval == NULL) {
485 		vval = "";
486 	}
487 	printf("LC_ALL=%s\n", vval);
488 }
489 
490 /*
491  * keyword value lookup helper (via localeconv())
492  */
493 char *
494 kwval_lconv(int id)
495 {
496 	struct lconv *lc;
497 	char *rval;
498 
499 	rval = NULL;
500 	lc = localeconv();
501 	switch (id) {
502 		case KW_GROUPING:
503 			rval = lc->grouping;
504 			break;
505 		case KW_INT_CURR_SYMBOL:
506 			rval = lc->int_curr_symbol;
507 			break;
508 		case KW_CURRENCY_SYMBOL:
509 			rval = lc->currency_symbol;
510 			break;
511 		case KW_MON_DECIMAL_POINT:
512 			rval = lc->mon_decimal_point;
513 			break;
514 		case KW_MON_THOUSANDS_SEP:
515 			rval = lc->mon_thousands_sep;
516 			break;
517 		case KW_MON_GROUPING:
518 			rval = lc->mon_grouping;
519 			break;
520 		case KW_POSITIVE_SIGN:
521 			rval = lc->positive_sign;
522 			break;
523 		case KW_NEGATIVE_SIGN:
524 			rval = lc->negative_sign;
525 			break;
526 		case KW_INT_FRAC_DIGITS:
527 			rval = &(lc->int_frac_digits);
528 			break;
529 		case KW_FRAC_DIGITS:
530 			rval = &(lc->frac_digits);
531 			break;
532 		case KW_P_CS_PRECEDES:
533 			rval = &(lc->p_cs_precedes);
534 			break;
535 		case KW_P_SEP_BY_SPACE:
536 			rval = &(lc->p_sep_by_space);
537 			break;
538 		case KW_N_CS_PRECEDES:
539 			rval = &(lc->n_cs_precedes);
540 			break;
541 		case KW_N_SEP_BY_SPACE:
542 			rval = &(lc->n_sep_by_space);
543 			break;
544 		case KW_P_SIGN_POSN:
545 			rval = &(lc->p_sign_posn);
546 			break;
547 		case KW_N_SIGN_POSN:
548 			rval = &(lc->n_sign_posn);
549 			break;
550 		case KW_INT_P_CS_PRECEDES:
551 			rval = &(lc->int_p_cs_precedes);
552 			break;
553 		case KW_INT_P_SEP_BY_SPACE:
554 			rval = &(lc->int_p_sep_by_space);
555 			break;
556 		case KW_INT_N_CS_PRECEDES:
557 			rval = &(lc->int_n_cs_precedes);
558 			break;
559 		case KW_INT_N_SEP_BY_SPACE:
560 			rval = &(lc->int_n_sep_by_space);
561 			break;
562 		case KW_INT_P_SIGN_POSN:
563 			rval = &(lc->int_p_sign_posn);
564 			break;
565 		case KW_INT_N_SIGN_POSN:
566 			rval = &(lc->int_n_sign_posn);
567 			break;
568 		default:
569 			break;
570 	}
571 	return (rval);
572 }
573 
574 /*
575  * keyword value and properties lookup
576  */
577 int
578 kwval_lookup(char *kwname, char **kwval, int *cat, int *isstr)
579 {
580 	int	rval;
581 	size_t	i;
582 
583 	rval = 0;
584 	for (i = 0; i < NKWINFO; i++) {
585 		if (strcasecmp(kwname, kwinfo[i].name) == 0) {
586 			rval = 1;
587 			*cat = kwinfo[i].catid;
588 			*isstr = kwinfo[i].isstr;
589 			if (kwinfo[i].value_ref < KW_ZERO) {
590 				*kwval = nl_langinfo(kwinfo[i].value_ref);
591 			} else {
592 				*kwval = kwval_lconv(kwinfo[i].value_ref);
593 			}
594 			break;
595 		}
596 	}
597 
598 	return (rval);
599 }
600 
601 /*
602  * Show details about requested keyword according to '-k' and/or '-c'
603  * command line options specified.
604  */
605 void
606 showdetails(char *kw)
607 {
608 	int	isstr, cat, tmpval;
609 	char	*kwval;
610 
611 	if (kwval_lookup(kw, &kwval, &cat, &isstr) == 0) {
612 		/*
613 		 * invalid keyword specified.
614 		 * XXX: any actions?
615 		 */
616 		fprintf(stderr, "Unknown keyword: `%s'\n", kw);
617 		return;
618 	}
619 
620 	if (prt_categories) {
621 		  if (prt_keywords)
622 			printf("%-20s ", lookup_localecat(cat));
623 		  else
624 			printf("%-20s\t%s\n", kw, lookup_localecat(cat));
625 	}
626 
627 	if (prt_keywords) {
628 		if (isstr) {
629 			printf("%s=\"%s\"\n", kw, kwval);
630 		} else {
631 			tmpval = (char) *kwval;
632 			printf("%s=%d\n", kw, tmpval);
633 		}
634 	}
635 
636 	if (!prt_categories && !prt_keywords) {
637 		if (isstr) {
638 			printf("%s\n", kwval);
639 		} else {
640 			tmpval = (char) *kwval;
641 			printf("%d\n", tmpval);
642 		}
643 	}
644 }
645 
646 /*
647  * Convert locale category id into string
648  */
649 const char *
650 lookup_localecat(int cat)
651 {
652 	size_t	i;
653 
654 	for (i = 0; i < NLCINFO; i++)
655 		if (lcinfo[i].id == cat) {
656 			return (lcinfo[i].name);
657 		}
658 	return ("UNKNOWN");
659 }
660 
661 /*
662  * Show list of keywords
663  */
664 void
665 showkeywordslist(char *substring)
666 {
667 	size_t	i;
668 
669 #define	FMT "%-20s %-12s %-7s %-20s\n"
670 
671 	if (substring == NULL)
672 		printf("List of available keywords\n\n");
673 	else
674 		printf("List of available keywords starting with '%s'\n\n",
675 		    substring);
676 	printf(FMT, "Keyword", "Category", "Type", "Comment");
677 	printf("-------------------- ------------ ------- --------------------\n");
678 	for (i = 0; i < NKWINFO; i++) {
679 		if (substring != NULL) {
680 			if (strncmp(kwinfo[i].name, substring,
681 			    strlen(substring)) != 0)
682 				continue;
683 		}
684 		printf(FMT,
685 			kwinfo[i].name,
686 			lookup_localecat(kwinfo[i].catid),
687 			(kwinfo[i].isstr == 0) ? "number" : "string",
688 			kwinfo[i].comment);
689 	}
690 }
691