glibc/locale/locale.c

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/* Copyright (C) 1995 Free Software Foundation, Inc.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <dirent.h>
#include <getopt.h>
#include <langinfo.h>
#include <libintl.h>
#include <limits.h>
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include "localedef.h"
/* If set dump C code describing the current locale. */
static int do_dump;
/* If set print the name of the category. */
static int show_category_name;
/* If set print the name of the item. */
static int show_keyword_name;
/* Long options. */
static const struct option long_options[] =
{
{ "all-locales", no_argument, NULL, 'a' },
{ "category-name", no_argument, &show_category_name, 1 },
{ "charmaps", no_argument, NULL, 'm' },
{ "dump", no_argument, &do_dump, 1 },
{ "help", no_argument, NULL, 'h' },
{ "keyword-name", no_argument, &show_keyword_name, 1 },
{ "version", no_argument, NULL, 'v' },
{ NULL, 0, NULL, 0 }
};
/* We don't have these constants defined because we don't use them. Give
default values. */
#define CTYPE_MB_CUR_MIN 0
#define CTYPE_MB_CUR_MAX 0
#define CTYPE_HASH_SIZE 0
#define CTYPE_HASH_LAYERS 0
#define CTYPE_CLASS 0
#define CTYPE_TOUPPER_EB 0
#define CTYPE_TOLOWER_EB 0
#define CTYPE_TOUPPER_EL 0
#define CTYPE_TOLOWER_EL 0
/* We have all categories defined in `categories.def'. Now construct
the description and data structure used for all categories. */
#define DEFINE_CATEGORY(category, name, items, postload, in, check, out) \
static struct cat_item category##_desc[] = \
{ \
NO_PAREN items \
};
#include "categories.def"
#undef DEFINE_CATEGORY
static struct category category[] =
{
#define DEFINE_CATEGORY(category, name, items, postload, in, check, out) \
{ _NL_NUM_##category, name, NELEMS (category##_desc) - 1, \
category##_desc, NULL, NULL, NULL, out },
#include "categories.def"
#undef DEFINE_CATEGORY
};
#define NCATEGORIES NELEMS (category)
/* Prototypes for local functions. */
static void usage (int status) __attribute__ ((noreturn));
static void write_locales (void);
static void write_charmaps (void);
static void show_locale_vars (void);
static void show_info (const char *name);
static void dump_category (const char *name);
int
main (int argc, char *argv[])
{
int optchar;
int do_all = 0;
int do_help = 0;
int do_version = 0;
int do_charmaps = 0;
/* Set initial values for global varaibles. */
do_dump = 0;
show_category_name = 0;
show_keyword_name = 0;
/* Set locale. Do not set LC_ALL because the other categories must
not be affected (acccording to POSIX.2). */
setlocale (LC_CTYPE, "");
setlocale (LC_MESSAGES, "");
/* Initialize the message catalog. */
textdomain (PACKAGE);
while ((optchar = getopt_long (argc, argv, "achkmv", long_options, NULL))
!= EOF)
switch (optchar)
{
case '\0':
break;
case 'a':
do_all = 1;
break;
case 'c':
show_category_name = 1;
break;
case 'h':
do_help = 1;
break;
case 'k':
show_keyword_name = 1;
break;
case 'm':
do_charmaps = 1;
break;
case 'v':
do_version = 1;
break;
default:
error (1, 0, gettext ("illegal option \"%s\""), optarg);
break;
}
/* Version information is requested. */
if (do_version)
{
fprintf (stderr, "GNU %s %s\n", PACKAGE, VERSION);
exit (EXIT_SUCCESS);
}
/* Help is requested. */
if (do_help)
usage (EXIT_SUCCESS);
/* Dump C code. */
if (do_dump)
{
printf ("\
/* Generated by GNU %s %s. */\n\
\n\
#include \"localeinfo.h\"\n", program_invocation_name, VERSION);
while (optind < argc)
dump_category (argv[optind++]);
exit (EXIT_SUCCESS);
}
/* `-a' requests the names of all available locales. */
if (do_all != 0)
{
write_locales ();
exit (EXIT_SUCCESS);
}
/* `m' requests the names of all available charmaps. The names can be
used for the -f argument to localedef(3). */
if (do_charmaps != 0)
{
write_charmaps ();
exit (EXIT_SUCCESS);
}
/* If no real argument is given we have to print the contents of the
current locale definition variables. These are LANG and the LC_*. */
if (optind == argc && show_keyword_name == 0 && show_category_name == 0)
{
show_locale_vars ();
exit (EXIT_SUCCESS);
}
/* Process all given names. */
while (optind < argc)
show_info (argv[optind++]);
exit (EXIT_SUCCESS);
}
/* Display usage information and exit. */
static void
usage(int status)
{
if (status != EXIT_SUCCESS)
fprintf (stderr, gettext ("Try `%s --help' for more information.\n"),
program_invocation_name);
else
printf(gettext ("\
Usage: %s [OPTION]... name\n\
Mandatory arguments to long options are mandatory for short options too.\n\
-h, --help display this help and exit\n\
-v, --version output version information and exit\n\
\n\
-a, --all-locales write names of available locales\n\
-m, --charmaps write names of available charmaps\n\
\n\
-c, --category-name write names of selected categories\n\
-k, --keyword-name write names of selected keywords\n\
\n\
--dump dump C code describing the current locale\n\
(this code can be used in the C library)\n\
"), program_invocation_name);
exit (status);
}
/* Write the names of all available locales to stdout. */
static void
write_locales (void)
{
DIR *dir;
struct dirent *dirent;
/* `POSIX' locale is always available (POSIX.2 4.34.3). */
puts ("POSIX");
dir = opendir (LOCALE_PATH);
if (dir == NULL)
{
error (1, errno, gettext ("cannot read locale directory `%s'"),
LOCALE_PATH);
return;
}
/* Now we can look for all files in the directory. */
while ((dirent = readdir (dir)) != NULL)
if (strcmp (dirent->d_name, ".") != 0
&& strcmp (dirent->d_name, "..") != 0)
puts (dirent->d_name);
closedir (dir);
}
/* Write the names of all available character maps to stdout. */
static void
write_charmaps (void)
{
DIR *dir;
struct dirent *dirent;
dir = opendir (CHARMAP_PATH);
if (dir == NULL)
{
error (1, errno, gettext ("cannot read character map directory `%s'"),
CHARMAP_PATH);
return;
}
/* Now we can look for all files in the directory. */
while ((dirent = readdir (dir)) != NULL)
if (strcmp (dirent->d_name, ".") != 0
&& strcmp (dirent->d_name, "..") != 0)
puts (dirent->d_name);
closedir (dir);
}
/* We have to show the contents of the environments determining the
locale. */
static void
show_locale_vars (void)
{
size_t cat_no;
const char *lcall = getenv ("LC_ALL");
const char *lang = getenv ("LANG") ? : "POSIX";
void get_source (const char *name)
{
char *val = getenv (name);
if (lcall != NULL || val == NULL)
printf ("%s=\"%s\"\n", name, lcall ? : lang);
else
printf ("%s=%s\n", name, val);
}
/* LANG has to be the first value. */
printf ("LANG=%s\n", lang);
/* Now all categories in an unspecified order. */
for (cat_no = 0; cat_no < NCATEGORIES; ++cat_no)
get_source (category[cat_no].name);
/* The last is the LC_ALL value. */
printf ("LC_ALL=%s\n", lcall ? : "");
}
/* Show the information request for NAME. */
static void
show_info (const char *name)
{
size_t cat_no;
void print_item (struct cat_item *item)
{
if (show_keyword_name != 0)
printf ("%s=", item->name);
switch (item->value_type)
{
case string:
printf ("%s%s%s", show_keyword_name ? "\"" : "",
nl_langinfo (item->item_id) ? : "",
show_keyword_name ? "\"" : "");
break;
case stringarray:
{
int cnt;
const char *val;
if (show_keyword_name)
putchar ('"');
for (cnt = 0; cnt < item->max - 1; ++cnt)
{
val = nl_langinfo (item->item_id + cnt);
printf ("%s;", val ? : "");
}
val = nl_langinfo (item->item_id + cnt);
printf ("%s", val ? : "");
if (show_keyword_name)
putchar ('"');
}
break;
case byte:
{
const char *val = nl_langinfo (item->item_id);
if (val != NULL)
printf ("%d", *val == CHAR_MAX ? -1 : *val);
}
break;
case bytearray:
{
const char *val = nl_langinfo (item->item_id);
int cnt = val ? strlen (val) : 0;
while (cnt > 1)
{
printf ("%d;", *val == CHAR_MAX ? -1 : *val);
--cnt;
++val;
}
printf ("%d", cnt == 0 || *val == CHAR_MAX ? -1 : *val);
}
break;
default:
}
putchar ('\n');
}
for (cat_no = 0; cat_no < NCATEGORIES; ++cat_no)
{
size_t item_no;
if (category[cat_no].outfct != NULL)
/* Categories which need special handling of the output are
not written. This is especially for LC_CTYPE and LC_COLLATE.
It does not make sense to have this large number of cryptic
characters displayed. */
continue;
if (strcmp (name, category[cat_no].name) == 0)
/* Print the whole category. */
{
if (show_category_name != 0)
puts (category[cat_no].name);
for (item_no = 0; item_no < category[cat_no].number; ++item_no)
print_item (&category[cat_no].item_desc[item_no]);
return;
}
for (item_no = 0; item_no < category[cat_no].number; ++item_no)
if (strcmp (name, category[cat_no].item_desc[item_no].name) == 0)
{
if (show_category_name != 0)
puts (category[cat_no].name);
print_item (&category[cat_no].item_desc[item_no]);
return;
}
}
}
static void
dump_category (const char *name)
{
char *locname;
size_t cat_no, item_no, nstrings;
for (cat_no = 0; cat_no < NCATEGORIES; ++cat_no)
if (strcmp (name, category[cat_no].name) == 0)
break;
if (cat_no >= NCATEGORIES)
return;
/* The NAME specifies a correct locale category. */
if (category[cat_no].outfct != NULL)
{
category[cat_no].outfct ();
return;
}
locname = (getenv ("LC_ALL") ?: getenv (name) ?:
getenv ("LANG") ?: (char *) "POSIX");
/* Determine the number of strings in advance. */
nstrings = 0;
for (item_no = 0; item_no < category[cat_no].number; ++item_no)
switch (category[cat_no].item_desc[item_no].value_type)
{
case string:
case byte:
case bytearray:
++nstrings;
break;
case stringarray:
nstrings += category[cat_no].item_desc[item_no].max;
default:
}
printf ("\nconst struct locale_data _nl_%s_%s =\n{\n"
" NULL, 0, /* no file mapped */\n %Zu,\n {\n",
locname, name, nstrings);
for (item_no = 0; item_no < category[cat_no].number; ++item_no)
switch (category[cat_no].item_desc[item_no].value_type)
{
case string:
{
const char *val = nl_langinfo (
category[cat_no].item_desc[item_no].item_id);
if (val != NULL)
printf (" \"%s\",\n", val);
else
puts (" NULL,");
}
break;
case stringarray:
{
const char *val;
int cnt;
for (cnt = 0; cnt < category[cat_no].item_desc[item_no].max; ++cnt)
{
val = nl_langinfo (
category[cat_no].item_desc[item_no].item_id + cnt);
if (val != NULL)
printf (" \"%s\",\n", val);
else
puts (" NULL,");
}
}
break;
case byte:
{
const char *val = nl_langinfo (
category[cat_no].item_desc[item_no].item_id);
if (val != NULL)
printf (" \"\\%o\",\n",
*(unsigned char *) val ? : UCHAR_MAX);
else
puts (" NULL,");
}
break;
case bytearray:
{
const char *bytes = nl_langinfo (
category[cat_no].item_desc[item_no].item_id);
if (bytes != NULL)
{
fputs (" \"", stdout);
if (*bytes != '\0')
do
printf ("\\%o", *(unsigned char *) bytes++);
while (*bytes != '\0');
else
printf ("\\%o", UCHAR_MAX);
puts ("\",");
}
else
puts (" NULL,");
}
break;
default:
break;
}
puts (" }\n};");
}
/*
* Local Variables:
* mode:c
* c-basic-offset:2
* End:
*/