1 /* locale - Implementation of the locale program according to POSIX 1003.2
2 Copyright (C) 1995, 1996 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Library General Public License as
8 published by the Free Software Foundation; either version 2 of the
9 License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Library General Public License for more details.
16 You should have received a copy of the GNU Library General Public
17 License along with the GNU C Library; see the file COPYING.LIB. If
18 not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
38 #include "localeinfo.h"
41 /* If set print the name of the category. */
42 static int show_category_name;
44 /* If set print the name of the item. */
45 static int show_keyword_name;
48 static const struct option long_options[] =
50 { "all-locales", no_argument, NULL, 'a' },
51 { "category-name", no_argument, &show_category_name, 1 },
52 { "charmaps", no_argument, NULL, 'm' },
53 { "help", no_argument, NULL, 'h' },
54 { "keyword-name", no_argument, &show_keyword_name, 1 },
55 { "version", no_argument, NULL, 'V' },
60 /* We don't have these constants defined because we don't use them. Give
62 #define CTYPE_MB_CUR_MIN 0
63 #define CTYPE_MB_CUR_MAX 0
64 #define CTYPE_HASH_SIZE 0
65 #define CTYPE_HASH_LAYERS 0
67 #define CTYPE_TOUPPER_EB 0
68 #define CTYPE_TOLOWER_EB 0
69 #define CTYPE_TOUPPER_EL 0
70 #define CTYPE_TOLOWER_EL 0
72 /* Definition of the data structure which represents a category and its
83 enum { std, opt } status;
84 enum value_type value_type;
90 /* Simple helper macro. */
91 #define NELEMS(arr) ((sizeof (arr)) / (sizeof (arr[0])))
93 /* For some tricky stuff. */
94 #define NO_PAREN(Item, More...) Item, ## More
96 /* We have all categories defined in `categories.def'. Now construct
97 the description and data structure used for all categories. */
98 #define DEFINE_ELEMENT(Item, More...) { Item, ## More },
99 #define DEFINE_CATEGORY(category, name, items, postload, in, check, out) \
100 static struct cat_item category##_desc[] = \
105 #include "categories.def"
106 #undef DEFINE_CATEGORY
108 static struct category category[] =
110 #define DEFINE_CATEGORY(category, name, items, postload, in, check, out) \
111 [category] = { _NL_NUM_##category, name, NELEMS (category##_desc), \
113 #include "categories.def"
114 #undef DEFINE_CATEGORY
116 #define NCATEGORIES NELEMS (category)
119 /* Automatically set variable. */
120 extern const char *__progname;
122 /* helper function for extended name handling. */
123 extern void locale_special (const char *name, int show_category_name,
124 int show_keyword_name);
126 /* Prototypes for local functions. */
127 static void usage (int status) __attribute__ ((noreturn));
128 static void write_locales (void);
129 static void write_charmaps (void);
130 static void show_locale_vars (void);
131 static void show_info (const char *name);
135 main (int argc, char *argv[])
143 /* Set initial values for global variables. */
144 show_category_name = 0;
145 show_keyword_name = 0;
147 /* Set locale. Do not set LC_ALL because the other categories must
148 not be affected (acccording to POSIX.2). */
149 setlocale (LC_CTYPE, "");
150 setlocale (LC_MESSAGES, "");
152 /* Initialize the message catalog. */
153 textdomain (PACKAGE);
155 while ((optchar = getopt_long (argc, argv, "achkmV", long_options, NULL))
159 case '\0': /* Long option. */
165 show_category_name = 1;
171 show_keyword_name = 1;
180 usage (EXIT_FAILURE);
183 /* Version information is requested. */
186 fprintf (stderr, "%s - GNU %s %s\n", __progname, PACKAGE, VERSION);
190 /* Help is requested. */
192 usage (EXIT_SUCCESS);
194 /* `-a' requests the names of all available locales. */
201 /* `m' requests the names of all available charmaps. The names can be
202 used for the -f argument to localedef(3). */
203 if (do_charmaps != 0)
209 /* Specific information about the current locale are requested.
210 Change to this locale now. */
211 setlocale (LC_ALL, "");
213 /* If no real argument is given we have to print the contents of the
214 current locale definition variables. These are LANG and the LC_*. */
215 if (optind == argc && show_keyword_name == 0 && show_category_name == 0)
221 /* Process all given names. */
222 while (optind < argc)
223 show_info (argv[optind++]);
229 /* Display usage information and exit. */
233 if (status != EXIT_SUCCESS)
234 fprintf (stderr, gettext ("Try `%s --help' for more information.\n"),
238 Usage: %s [OPTION]... name\n\
239 Mandatory arguments to long options are mandatory for short options too.\n\
240 -h, --help display this help and exit\n\
241 -V, --version output version information and exit\n\
243 -a, --all-locales write names of available locales\n\
244 -m, --charmaps write names of available charmaps\n\
246 -c, --category-name write names of selected categories\n\
247 -k, --keyword-name write names of selected keywords\n\
248 Report bugs to <bug-glibc@prep.ai.mit.edu>.\n"),
255 /* Write the names of all available locales to stdout. */
260 struct dirent *dirent;
262 /* `POSIX' locale is always available (POSIX.2 4.34.3). */
265 dir = opendir (LOCALE_PATH);
268 error (1, errno, gettext ("cannot read locale directory `%s'"),
273 /* Now we can look for all files in the directory. */
274 while ((dirent = readdir (dir)) != NULL)
275 if (strcmp (dirent->d_name, ".") != 0
276 && strcmp (dirent->d_name, "..") != 0)
277 puts (dirent->d_name);
283 /* Write the names of all available character maps to stdout. */
285 write_charmaps (void)
288 struct dirent *dirent;
290 dir = opendir (CHARMAP_PATH);
293 error (1, errno, gettext ("cannot read character map directory `%s'"),
298 /* Now we can look for all files in the directory. */
299 while ((dirent = readdir (dir)) != NULL)
300 if (strcmp (dirent->d_name, ".") != 0
301 && strcmp (dirent->d_name, "..") != 0)
302 puts (dirent->d_name);
308 /* We have to show the contents of the environments determining the
311 show_locale_vars (void)
314 const char *lcall = getenv ("LC_ALL");
315 const char *lang = getenv ("LANG") ? : "POSIX";
317 void get_source (const char *name)
319 char *val = getenv (name);
321 if (lcall != NULL || val == NULL)
322 printf ("%s=\"%s\"\n", name, lcall ? : lang);
324 printf ("%s=%s\n", name, val);
327 /* LANG has to be the first value. */
328 printf ("LANG=%s\n", lang);
330 /* Now all categories in an unspecified order. */
331 for (cat_no = 0; cat_no < NCATEGORIES; ++cat_no)
332 get_source (category[cat_no].name);
334 /* The last is the LC_ALL value. */
335 printf ("LC_ALL=%s\n", lcall ? : "");
339 /* Show the information request for NAME. */
341 show_info (const char *name)
345 void print_item (struct cat_item *item)
347 if (show_keyword_name != 0)
348 printf ("%s=", item->name);
350 switch (item->value_type)
353 printf ("%s%s%s", show_keyword_name ? "\"" : "",
354 nl_langinfo (item->item_id) ? : "",
355 show_keyword_name ? "\"" : "");
362 if (show_keyword_name)
365 for (cnt = 0; cnt < item->max - 1; ++cnt)
367 val = nl_langinfo (item->item_id + cnt);
368 printf ("%s;", val ? : "");
371 val = nl_langinfo (item->item_id + cnt);
372 printf ("%s", val ? : "");
374 if (show_keyword_name)
380 const char *val = nl_langinfo (item->item_id);
383 printf ("%d", *val == CHAR_MAX ? -1 : *val);
388 const char *val = nl_langinfo (item->item_id);
389 int cnt = val ? strlen (val) : 0;
393 printf ("%d;", *val == CHAR_MAX ? -1 : *val);
398 printf ("%d", cnt == 0 || *val == CHAR_MAX ? -1 : *val);
403 unsigned int val = (unsigned int) nl_langinfo (item->item_id);
412 for (cat_no = 0; cat_no < NCATEGORIES; ++cat_no)
416 if (strcmp (name, category[cat_no].name) == 0)
417 /* Print the whole category. */
419 if (show_category_name != 0)
420 puts (category[cat_no].name);
422 for (item_no = 0; item_no < category[cat_no].number; ++item_no)
423 print_item (&category[cat_no].item_desc[item_no]);
428 for (item_no = 0; item_no < category[cat_no].number; ++item_no)
429 if (strcmp (name, category[cat_no].item_desc[item_no].name) == 0)
431 if (show_category_name != 0)
432 puts (category[cat_no].name);
434 print_item (&category[cat_no].item_desc[item_no]);
439 /* When we get to here the name is not standard ones. For testing
440 and perhpas advanced use we allow some more symbols. */
441 locale_special (name, show_category_name, show_keyword_name);