glibc/locale/nl_langinfo_l.c

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/* User interface for extracting locale-dependent parameters.
Copyright (C) 1995-2015 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <langinfo.h>
#include <locale.h>
#include <errno.h>
#include <stddef.h>
#include <stdlib.h>
#include "localeinfo.h"
/* Return a string with the data for locale-dependent parameter ITEM. */
char *
__nl_langinfo_l (item, l)
nl_item item;
__locale_t l;
{
int category = _NL_ITEM_CATEGORY (item);
unsigned int index = _NL_ITEM_INDEX (item);
const struct __locale_data *data;
if (category < 0 || category == LC_ALL || category >= __LC_LAST)
/* Bogus category: bogus item. */
return (char *) "";
/* Special case value for NL_LOCALE_NAME (category).
This is not a real item index in the string table. */
if (index == _NL_ITEM_INDEX (_NL_LOCALE_NAME (category)))
return (char *) l->__names[category];
#if defined NL_CURRENT_INDIRECT
/* Make direct reference to every _nl_current_CATEGORY symbol,
since we know only at runtime which categories are used. */
switch (category)
{
# define DEFINE_CATEGORY(category, category_name, items, a) \
case category: data = *_nl_current_##category; break;
# include "categories.def"
# undef DEFINE_CATEGORY
default: /* Should be impossible. */
abort();
}
#else
data = l->__locales[category];
#endif
if (index >= data->nstrings)
/* Bogus index for this category: bogus item. */
return (char *) "";
/* Return the string for the specified item. */
return (char *) data->values[index].string;
}
libc_hidden_def (__nl_langinfo_l)
weak_alias (__nl_langinfo_l, nl_langinfo_l)