xref: /freebsd/usr.bin/locale/locale.c (revision 148a8da8)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2002, 2003 Alexey Zelkin <phantom@FreeBSD.org>
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30 
31 /*
32  * XXX: implement missing era_* (LC_TIME) keywords (require libc &
33  *	nl_langinfo(3) extensions)
34  *
35  * XXX: correctly handle reserved 'charmap' keyword and '-m' option (require
36  *	localedef(1) implementation).  Currently it's handled via
37  *	nl_langinfo(CODESET).
38  */
39 
40 #include <sys/param.h>
41 #include <sys/types.h>
42 
43 #include <dirent.h>
44 #include <err.h>
45 #include <limits.h>
46 #include <locale.h>
47 #include <langinfo.h>
48 #include <stdio.h>
49 #include <stdlib.h>
50 #include <string.h>
51 #include <stringlist.h>
52 #include <unistd.h>
53 #include "setlocale.h"
54 
55 /* Local prototypes */
56 char	*format_grouping(const char *);
57 void	init_locales_list(void);
58 void	list_charmaps(void);
59 void	list_locales(void);
60 const char *lookup_localecat(int);
61 char	*kwval_lconv(int);
62 int	kwval_lookup(const char *, char **, int *, int *);
63 void	showdetails(const char *);
64 void	showkeywordslist(char *substring);
65 void	showlocale(void);
66 void	usage(void);
67 
68 /* Global variables */
69 static StringList *locales = NULL;
70 
71 static int	all_locales = 0;
72 static int	all_charmaps = 0;
73 static int	prt_categories = 0;
74 static int	prt_keywords = 0;
75 
76 static const struct _lcinfo {
77 	const char	*name;
78 	int		id;
79 } lcinfo [] = {
80 	{ "LC_CTYPE",		LC_CTYPE },
81 	{ "LC_COLLATE",		LC_COLLATE },
82 	{ "LC_TIME",		LC_TIME },
83 	{ "LC_NUMERIC",		LC_NUMERIC },
84 	{ "LC_MONETARY",	LC_MONETARY },
85 	{ "LC_MESSAGES",	LC_MESSAGES }
86 };
87 #define	NLCINFO nitems(lcinfo)
88 
89 /* ids for values not referenced by nl_langinfo() */
90 #define	KW_ZERO			10000
91 #define	KW_GROUPING		(KW_ZERO+1)
92 #define	KW_INT_CURR_SYMBOL	(KW_ZERO+2)
93 #define	KW_CURRENCY_SYMBOL	(KW_ZERO+3)
94 #define	KW_MON_DECIMAL_POINT	(KW_ZERO+4)
95 #define	KW_MON_THOUSANDS_SEP	(KW_ZERO+5)
96 #define	KW_MON_GROUPING		(KW_ZERO+6)
97 #define	KW_POSITIVE_SIGN	(KW_ZERO+7)
98 #define	KW_NEGATIVE_SIGN	(KW_ZERO+8)
99 #define	KW_INT_FRAC_DIGITS	(KW_ZERO+9)
100 #define	KW_FRAC_DIGITS		(KW_ZERO+10)
101 #define	KW_P_CS_PRECEDES	(KW_ZERO+11)
102 #define	KW_P_SEP_BY_SPACE	(KW_ZERO+12)
103 #define	KW_N_CS_PRECEDES	(KW_ZERO+13)
104 #define	KW_N_SEP_BY_SPACE	(KW_ZERO+14)
105 #define	KW_P_SIGN_POSN		(KW_ZERO+15)
106 #define	KW_N_SIGN_POSN		(KW_ZERO+16)
107 #define	KW_INT_P_CS_PRECEDES	(KW_ZERO+17)
108 #define	KW_INT_P_SEP_BY_SPACE	(KW_ZERO+18)
109 #define	KW_INT_N_CS_PRECEDES	(KW_ZERO+19)
110 #define	KW_INT_N_SEP_BY_SPACE	(KW_ZERO+20)
111 #define	KW_INT_P_SIGN_POSN	(KW_ZERO+21)
112 #define	KW_INT_N_SIGN_POSN	(KW_ZERO+22)
113 
114 static const struct _kwinfo {
115 	const char	*name;
116 	int		isstr;		/* true - string, false - number */
117 	int		catid;		/* LC_* */
118 	int		value_ref;
119 	const char	*comment;
120 } kwinfo [] = {
121 	{ "charmap",		1, LC_CTYPE,	CODESET, "" },	/* hack */
122 
123 	{ "decimal_point",	1, LC_NUMERIC,	RADIXCHAR, "" },
124 	{ "thousands_sep",	1, LC_NUMERIC,	THOUSEP, "" },
125 	{ "grouping",		1, LC_NUMERIC,	KW_GROUPING, "" },
126 	{ "radixchar",		1, LC_NUMERIC,	RADIXCHAR,
127 	  "Same as decimal_point (FreeBSD only)" },		/* compat */
128 	{ "thousep",		1, LC_NUMERIC,	THOUSEP,
129 	  "Same as thousands_sep (FreeBSD only)" },		/* compat */
130 
131 	{ "int_curr_symbol",	1, LC_MONETARY,	KW_INT_CURR_SYMBOL, "" },
132 	{ "currency_symbol",	1, LC_MONETARY,	KW_CURRENCY_SYMBOL, "" },
133 	{ "mon_decimal_point",	1, LC_MONETARY,	KW_MON_DECIMAL_POINT, "" },
134 	{ "mon_thousands_sep",	1, LC_MONETARY,	KW_MON_THOUSANDS_SEP, "" },
135 	{ "mon_grouping",	1, LC_MONETARY,	KW_MON_GROUPING, "" },
136 	{ "positive_sign",	1, LC_MONETARY,	KW_POSITIVE_SIGN, "" },
137 	{ "negative_sign",	1, LC_MONETARY,	KW_NEGATIVE_SIGN, "" },
138 
139 	{ "int_frac_digits",	0, LC_MONETARY,	KW_INT_FRAC_DIGITS, "" },
140 	{ "frac_digits",	0, LC_MONETARY,	KW_FRAC_DIGITS, "" },
141 	{ "p_cs_precedes",	0, LC_MONETARY,	KW_P_CS_PRECEDES, "" },
142 	{ "p_sep_by_space",	0, LC_MONETARY,	KW_P_SEP_BY_SPACE, "" },
143 	{ "n_cs_precedes",	0, LC_MONETARY,	KW_N_CS_PRECEDES, "" },
144 	{ "n_sep_by_space",	0, LC_MONETARY,	KW_N_SEP_BY_SPACE, "" },
145 	{ "p_sign_posn",	0, LC_MONETARY,	KW_P_SIGN_POSN, "" },
146 	{ "n_sign_posn",	0, LC_MONETARY,	KW_N_SIGN_POSN, "" },
147 	{ "int_p_cs_precedes",	0, LC_MONETARY,	KW_INT_P_CS_PRECEDES, "" },
148 	{ "int_p_sep_by_space",	0, LC_MONETARY,	KW_INT_P_SEP_BY_SPACE, "" },
149 	{ "int_n_cs_precedes",	0, LC_MONETARY,	KW_INT_N_CS_PRECEDES, "" },
150 	{ "int_n_sep_by_space",	0, LC_MONETARY,	KW_INT_N_SEP_BY_SPACE, "" },
151 	{ "int_p_sign_posn",	0, LC_MONETARY,	KW_INT_P_SIGN_POSN, "" },
152 	{ "int_n_sign_posn",	0, LC_MONETARY,	KW_INT_N_SIGN_POSN, "" },
153 
154 	{ "d_t_fmt",		1, LC_TIME,	D_T_FMT, "" },
155 	{ "d_fmt",		1, LC_TIME,	D_FMT, "" },
156 	{ "t_fmt",		1, LC_TIME,	T_FMT, "" },
157 	{ "am_str",		1, LC_TIME,	AM_STR, "" },
158 	{ "pm_str",		1, LC_TIME,	PM_STR, "" },
159 	{ "t_fmt_ampm",		1, LC_TIME,	T_FMT_AMPM, "" },
160 	{ "day_1",		1, LC_TIME,	DAY_1, "" },
161 	{ "day_2",		1, LC_TIME,	DAY_2, "" },
162 	{ "day_3",		1, LC_TIME,	DAY_3, "" },
163 	{ "day_4",		1, LC_TIME,	DAY_4, "" },
164 	{ "day_5",		1, LC_TIME,	DAY_5, "" },
165 	{ "day_6",		1, LC_TIME,	DAY_6, "" },
166 	{ "day_7",		1, LC_TIME,	DAY_7, "" },
167 	{ "abday_1",		1, LC_TIME,	ABDAY_1, "" },
168 	{ "abday_2",		1, LC_TIME,	ABDAY_2, "" },
169 	{ "abday_3",		1, LC_TIME,	ABDAY_3, "" },
170 	{ "abday_4",		1, LC_TIME,	ABDAY_4, "" },
171 	{ "abday_5",		1, LC_TIME,	ABDAY_5, "" },
172 	{ "abday_6",		1, LC_TIME,	ABDAY_6, "" },
173 	{ "abday_7",		1, LC_TIME,	ABDAY_7, "" },
174 	{ "mon_1",		1, LC_TIME,	MON_1, "" },
175 	{ "mon_2",		1, LC_TIME,	MON_2, "" },
176 	{ "mon_3",		1, LC_TIME,	MON_3, "" },
177 	{ "mon_4",		1, LC_TIME,	MON_4, "" },
178 	{ "mon_5",		1, LC_TIME,	MON_5, "" },
179 	{ "mon_6",		1, LC_TIME,	MON_6, "" },
180 	{ "mon_7",		1, LC_TIME,	MON_7, "" },
181 	{ "mon_8",		1, LC_TIME,	MON_8, "" },
182 	{ "mon_9",		1, LC_TIME,	MON_9, "" },
183 	{ "mon_10",		1, LC_TIME,	MON_10, "" },
184 	{ "mon_11",		1, LC_TIME,	MON_11, "" },
185 	{ "mon_12",		1, LC_TIME,	MON_12, "" },
186 	{ "abmon_1",		1, LC_TIME,	ABMON_1, "" },
187 	{ "abmon_2",		1, LC_TIME,	ABMON_2, "" },
188 	{ "abmon_3",		1, LC_TIME,	ABMON_3, "" },
189 	{ "abmon_4",		1, LC_TIME,	ABMON_4, "" },
190 	{ "abmon_5",		1, LC_TIME,	ABMON_5, "" },
191 	{ "abmon_6",		1, LC_TIME,	ABMON_6, "" },
192 	{ "abmon_7",		1, LC_TIME,	ABMON_7, "" },
193 	{ "abmon_8",		1, LC_TIME,	ABMON_8, "" },
194 	{ "abmon_9",		1, LC_TIME,	ABMON_9, "" },
195 	{ "abmon_10",		1, LC_TIME,	ABMON_10, "" },
196 	{ "abmon_11",		1, LC_TIME,	ABMON_11, "" },
197 	{ "abmon_12",		1, LC_TIME,	ABMON_12, "" },
198 	{ "altmon_1",		1, LC_TIME,	ALTMON_1, "(FreeBSD only)" },
199 	{ "altmon_2",		1, LC_TIME,	ALTMON_2, "(FreeBSD only)" },
200 	{ "altmon_3",		1, LC_TIME,	ALTMON_3, "(FreeBSD only)" },
201 	{ "altmon_4",		1, LC_TIME,	ALTMON_4, "(FreeBSD only)" },
202 	{ "altmon_5",		1, LC_TIME,	ALTMON_5, "(FreeBSD only)" },
203 	{ "altmon_6",		1, LC_TIME,	ALTMON_6, "(FreeBSD only)" },
204 	{ "altmon_7",		1, LC_TIME,	ALTMON_7, "(FreeBSD only)" },
205 	{ "altmon_8",		1, LC_TIME,	ALTMON_8, "(FreeBSD only)" },
206 	{ "altmon_9",		1, LC_TIME,	ALTMON_9, "(FreeBSD only)" },
207 	{ "altmon_10",		1, LC_TIME,	ALTMON_10, "(FreeBSD only)" },
208 	{ "altmon_11",		1, LC_TIME,	ALTMON_11, "(FreeBSD only)" },
209 	{ "altmon_12",		1, LC_TIME,	ALTMON_12, "(FreeBSD only)" },
210 	{ "era",		1, LC_TIME,	ERA, "(unavailable)" },
211 	{ "era_d_fmt",		1, LC_TIME,	ERA_D_FMT, "(unavailable)" },
212 	{ "era_d_t_fmt",	1, LC_TIME,	ERA_D_T_FMT, "(unavailable)" },
213 	{ "era_t_fmt",		1, LC_TIME,	ERA_T_FMT, "(unavailable)" },
214 	{ "alt_digits",		1, LC_TIME,	ALT_DIGITS, "" },
215 	{ "d_md_order",		1, LC_TIME,	D_MD_ORDER,
216 	  "(FreeBSD only)"				},	/* local */
217 
218 	{ "yesexpr",		1, LC_MESSAGES, YESEXPR, "" },
219 	{ "noexpr",		1, LC_MESSAGES, NOEXPR, "" },
220 	{ "yesstr",		1, LC_MESSAGES, YESSTR,
221 	  "(POSIX legacy)" },					/* compat */
222 	{ "nostr",		1, LC_MESSAGES, NOSTR,
223 	  "(POSIX legacy)" }					/* compat */
224 
225 };
226 #define	NKWINFO (nitems(kwinfo))
227 
228 static const char *boguslocales[] = { "UTF-8" };
229 #define	NBOGUS	(nitems(boguslocales))
230 
231 int
232 main(int argc, char *argv[])
233 {
234 	int	ch;
235 	int	tmp;
236 
237 	while ((ch = getopt(argc, argv, "ackms:")) != -1) {
238 		switch (ch) {
239 		case 'a':
240 			all_locales = 1;
241 			break;
242 		case 'c':
243 			prt_categories = 1;
244 			break;
245 		case 'k':
246 			prt_keywords = 1;
247 			break;
248 		case 'm':
249 			all_charmaps = 1;
250 			break;
251 		default:
252 			usage();
253 		}
254 	}
255 	argc -= optind;
256 	argv += optind;
257 
258 	/* validate arguments */
259 	if (all_locales && all_charmaps)
260 		usage();
261 	if ((all_locales || all_charmaps) && argc > 0)
262 		usage();
263 	if ((all_locales || all_charmaps) && (prt_categories || prt_keywords))
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', '-k', or command line arguments. */
288 	if (prt_categories || prt_keywords || argc > 0) {
289 		if (prt_keywords || argc > 0)
290 			setlocale(LC_ALL, "");
291 		if (argc > 0) {
292 			while (argc > 0) {
293 				showdetails(*argv);
294 				argv++;
295 				argc--;
296 			}
297 		} else {
298 			uint i;
299 			for (i = 0; i < nitems(kwinfo); i++)
300 				showdetails(kwinfo[i].name);
301 		}
302 		exit(0);
303 	}
304 
305 	/* no arguments, show current locale state */
306 	showlocale();
307 
308 	return (0);
309 }
310 
311 void
312 usage(void)
313 {
314 	printf("Usage: locale [ -a | -m ]\n"
315 	       "       locale -k list [prefix]\n"
316 	       "       locale [ -ck ] [keyword ...]\n");
317 	exit(1);
318 }
319 
320 /*
321  * Output information about all available locales
322  *
323  * XXX actually output of this function does not guarantee that locale
324  *     is really available to application, since it can be broken or
325  *     inconsistent thus setlocale() will fail.  Maybe add '-V' function to
326  *     also validate these locales?
327  */
328 void
329 list_locales(void)
330 {
331 	size_t i;
332 
333 	init_locales_list();
334 	for (i = 0; i < locales->sl_cur; i++) {
335 		printf("%s\n", locales->sl_str[i]);
336 	}
337 }
338 
339 /*
340  * qsort() helper function
341  */
342 static int
343 scmp(const void *s1, const void *s2)
344 {
345 	return strcmp(*(const char * const *)s1, *(const char * const *)s2);
346 }
347 
348 /*
349  * Output information about all available charmaps
350  *
351  * XXX this function is doing a task in hackish way, i.e. by scaning
352  *     list of locales, spliting their codeset part and building list of
353  *     them.
354  */
355 void
356 list_charmaps(void)
357 {
358 	size_t i;
359 	char *s, *cs;
360 	StringList *charmaps;
361 
362 	/* initialize StringList */
363 	charmaps = sl_init();
364 	if (charmaps == NULL)
365 		err(1, "could not allocate memory");
366 
367 	/* fetch locales list */
368 	init_locales_list();
369 
370 	/* split codesets and build their list */
371 	for (i = 0; i < locales->sl_cur; i++) {
372 		s = locales->sl_str[i];
373 		if ((cs = strchr(s, '.')) != NULL) {
374 			cs++;
375 			if (sl_find(charmaps, cs) == NULL)
376 				sl_add(charmaps, cs);
377 		}
378 	}
379 
380 	/* add US-ASCII, if not yet added */
381 	if (sl_find(charmaps, "US-ASCII") == NULL)
382 		sl_add(charmaps, strdup("US-ASCII"));
383 
384 	/* sort the list */
385 	qsort(charmaps->sl_str, charmaps->sl_cur, sizeof(char *), scmp);
386 
387 	/* print results */
388 	for (i = 0; i < charmaps->sl_cur; i++) {
389 		printf("%s\n", charmaps->sl_str[i]);
390 	}
391 }
392 
393 /*
394  * Retrieve sorted list of system locales (or user locales, if PATH_LOCALE
395  * environment variable is set)
396  */
397 void
398 init_locales_list(void)
399 {
400 	DIR *dirp;
401 	struct dirent *dp;
402 	size_t i;
403 	int bogus;
404 
405 	/* why call this function twice ? */
406 	if (locales != NULL)
407 		return;
408 
409 	/* initialize StringList */
410 	locales = sl_init();
411 	if (locales == NULL)
412 		err(1, "could not allocate memory");
413 
414 	/* get actual locales directory name */
415 	if (__detect_path_locale() != 0)
416 		err(1, "unable to find locales storage");
417 
418 	/* open locales directory */
419 	dirp = opendir(_PathLocale);
420 	if (dirp == NULL)
421 		err(1, "could not open directory '%s'", _PathLocale);
422 
423 	/* scan directory and store its contents except "." and ".." */
424 	while ((dp = readdir(dirp)) != NULL) {
425 		if (*(dp->d_name) == '.')
426 			continue;		/* exclude "." and ".." */
427 		for (bogus = i = 0; i < NBOGUS; i++)
428 			if (strncmp(dp->d_name, boguslocales[i],
429 			    strlen(boguslocales[i])) == 0)
430 				bogus = 1;
431 		if (!bogus)
432 			sl_add(locales, strdup(dp->d_name));
433 	}
434 	closedir(dirp);
435 
436 	/* make sure that 'POSIX' and 'C' locales are present in the list.
437 	 * POSIX 1003.1-2001 requires presence of 'POSIX' name only here, but
438 	 * we also list 'C' for constistency
439 	 */
440 	if (sl_find(locales, "POSIX") == NULL)
441 		sl_add(locales, strdup("POSIX"));
442 
443 	if (sl_find(locales, "C") == NULL)
444 		sl_add(locales, strdup("C"));
445 
446 	/* make output nicer, sort the list */
447 	qsort(locales->sl_str, locales->sl_cur, sizeof(char *), scmp);
448 }
449 
450 /*
451  * Show current locale status, depending on environment variables
452  */
453 void
454 showlocale(void)
455 {
456 	size_t	i;
457 	const char *lang, *vval, *eval;
458 
459 	setlocale(LC_ALL, "");
460 
461 	lang = getenv("LANG");
462 	if (lang == NULL) {
463 		lang = "";
464 	}
465 	printf("LANG=%s\n", lang);
466 	/* XXX: if LANG is null, then set it to "C" to get implied values? */
467 
468 	for (i = 0; i < NLCINFO; i++) {
469 		vval = setlocale(lcinfo[i].id, NULL);
470 		eval = getenv(lcinfo[i].name);
471 		if (eval != NULL && !strcmp(eval, vval)
472 				&& strcmp(lang, vval)) {
473 			/*
474 			 * Appropriate environment variable set, its value
475 			 * is valid and not overridden by LC_ALL
476 			 *
477 			 * XXX: possible side effect: if both LANG and
478 			 * overridden environment variable are set into same
479 			 * value, then it'll be assumed as 'implied'
480 			 */
481 			printf("%s=%s\n", lcinfo[i].name, vval);
482 		} else {
483 			printf("%s=\"%s\"\n", lcinfo[i].name, vval);
484 		}
485 	}
486 
487 	vval = getenv("LC_ALL");
488 	if (vval == NULL) {
489 		vval = "";
490 	}
491 	printf("LC_ALL=%s\n", vval);
492 }
493 
494 char *
495 format_grouping(const char *binary)
496 {
497 	static char rval[64];
498 	const char *cp;
499 	size_t roff;
500 	int len;
501 
502 	rval[0] = '\0';
503 	roff = 0;
504 	for (cp = binary; *cp != '\0'; ++cp) {
505 #if CHAR_MIN != 0
506 		if (*cp < 0)
507 			break;		/* garbage input */
508 #endif
509 		len = snprintf(&rval[roff], sizeof(rval) - roff, "%u;", *cp);
510 		if (len < 0 || (unsigned)len >= sizeof(rval) - roff)
511 			break;		/* insufficient space for output */
512 		roff += len;
513 		if (*cp == CHAR_MAX)
514 			break;		/* special termination */
515 	}
516 
517 	/* Truncate at the last successfully snprintf()ed semicolon. */
518 	if (roff != 0)
519 		rval[roff - 1] = '\0';
520 
521 	return (&rval[0]);
522 }
523 
524 /*
525  * keyword value lookup helper (via localeconv())
526  */
527 char *
528 kwval_lconv(int id)
529 {
530 	struct lconv *lc;
531 	char *rval;
532 
533 	rval = NULL;
534 	lc = localeconv();
535 	switch (id) {
536 		case KW_GROUPING:
537 			rval = format_grouping(lc->grouping);
538 			break;
539 		case KW_INT_CURR_SYMBOL:
540 			rval = lc->int_curr_symbol;
541 			break;
542 		case KW_CURRENCY_SYMBOL:
543 			rval = lc->currency_symbol;
544 			break;
545 		case KW_MON_DECIMAL_POINT:
546 			rval = lc->mon_decimal_point;
547 			break;
548 		case KW_MON_THOUSANDS_SEP:
549 			rval = lc->mon_thousands_sep;
550 			break;
551 		case KW_MON_GROUPING:
552 			rval = format_grouping(lc->mon_grouping);
553 			break;
554 		case KW_POSITIVE_SIGN:
555 			rval = lc->positive_sign;
556 			break;
557 		case KW_NEGATIVE_SIGN:
558 			rval = lc->negative_sign;
559 			break;
560 		case KW_INT_FRAC_DIGITS:
561 			rval = &(lc->int_frac_digits);
562 			break;
563 		case KW_FRAC_DIGITS:
564 			rval = &(lc->frac_digits);
565 			break;
566 		case KW_P_CS_PRECEDES:
567 			rval = &(lc->p_cs_precedes);
568 			break;
569 		case KW_P_SEP_BY_SPACE:
570 			rval = &(lc->p_sep_by_space);
571 			break;
572 		case KW_N_CS_PRECEDES:
573 			rval = &(lc->n_cs_precedes);
574 			break;
575 		case KW_N_SEP_BY_SPACE:
576 			rval = &(lc->n_sep_by_space);
577 			break;
578 		case KW_P_SIGN_POSN:
579 			rval = &(lc->p_sign_posn);
580 			break;
581 		case KW_N_SIGN_POSN:
582 			rval = &(lc->n_sign_posn);
583 			break;
584 		case KW_INT_P_CS_PRECEDES:
585 			rval = &(lc->int_p_cs_precedes);
586 			break;
587 		case KW_INT_P_SEP_BY_SPACE:
588 			rval = &(lc->int_p_sep_by_space);
589 			break;
590 		case KW_INT_N_CS_PRECEDES:
591 			rval = &(lc->int_n_cs_precedes);
592 			break;
593 		case KW_INT_N_SEP_BY_SPACE:
594 			rval = &(lc->int_n_sep_by_space);
595 			break;
596 		case KW_INT_P_SIGN_POSN:
597 			rval = &(lc->int_p_sign_posn);
598 			break;
599 		case KW_INT_N_SIGN_POSN:
600 			rval = &(lc->int_n_sign_posn);
601 			break;
602 		default:
603 			break;
604 	}
605 	return (rval);
606 }
607 
608 /*
609  * keyword value and properties lookup
610  */
611 int
612 kwval_lookup(const char *kwname, char **kwval, int *cat, int *isstr)
613 {
614 	int	rval;
615 	size_t	i;
616 
617 	rval = 0;
618 	for (i = 0; i < NKWINFO; i++) {
619 		if (strcasecmp(kwname, kwinfo[i].name) == 0) {
620 			rval = 1;
621 			*cat = kwinfo[i].catid;
622 			*isstr = kwinfo[i].isstr;
623 			if (kwinfo[i].value_ref < KW_ZERO) {
624 				*kwval = nl_langinfo(kwinfo[i].value_ref);
625 			} else {
626 				*kwval = kwval_lconv(kwinfo[i].value_ref);
627 			}
628 			break;
629 		}
630 	}
631 
632 	return (rval);
633 }
634 
635 /*
636  * Show details about requested keyword according to '-k' and/or '-c'
637  * command line options specified.
638  */
639 void
640 showdetails(const char *kw)
641 {
642 	int	isstr, cat, tmpval;
643 	char	*kwval;
644 
645 	if (kwval_lookup(kw, &kwval, &cat, &isstr) == 0) {
646 		/*
647 		 * invalid keyword specified.
648 		 * XXX: any actions?
649 		 */
650 		fprintf(stderr, "Unknown keyword: `%s'\n", kw);
651 		return;
652 	}
653 
654 	if (prt_categories) {
655 		if (prt_keywords)
656 			printf("%-20s ", lookup_localecat(cat));
657 		else
658 			printf("%-20s\t%s\n", kw, lookup_localecat(cat));
659 	}
660 
661 	if (prt_keywords) {
662 		if (isstr) {
663 			printf("%s=\"%s\"\n", kw, kwval);
664 		} else {
665 			tmpval = (char) *kwval;
666 			printf("%s=%d\n", kw, tmpval);
667 		}
668 	}
669 
670 	if (!prt_categories && !prt_keywords) {
671 		if (isstr) {
672 			printf("%s\n", kwval);
673 		} else {
674 			tmpval = (char) *kwval;
675 			printf("%d\n", tmpval);
676 		}
677 	}
678 }
679 
680 /*
681  * Convert locale category id into string
682  */
683 const char *
684 lookup_localecat(int cat)
685 {
686 	size_t	i;
687 
688 	for (i = 0; i < NLCINFO; i++)
689 		if (lcinfo[i].id == cat) {
690 			return (lcinfo[i].name);
691 		}
692 	return ("UNKNOWN");
693 }
694 
695 /*
696  * Show list of keywords
697  */
698 void
699 showkeywordslist(char *substring)
700 {
701 	size_t	i;
702 
703 #define	FMT "%-20s %-12s %-7s %-20s\n"
704 
705 	if (substring == NULL)
706 		printf("List of available keywords\n\n");
707 	else
708 		printf("List of available keywords starting with '%s'\n\n",
709 		    substring);
710 	printf(FMT, "Keyword", "Category", "Type", "Comment");
711 	printf("-------------------- ------------ ------- --------------------\n");
712 	for (i = 0; i < NKWINFO; i++) {
713 		if (substring != NULL) {
714 			if (strncmp(kwinfo[i].name, substring,
715 			    strlen(substring)) != 0)
716 				continue;
717 		}
718 		printf(FMT,
719 			kwinfo[i].name,
720 			lookup_localecat(kwinfo[i].catid),
721 			(kwinfo[i].isstr == 0) ? "number" : "string",
722 			kwinfo[i].comment);
723 	}
724 }
725