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/* nl_langinfo -- User interface for extracting locale-dependent parameters.
Copyright (C) 1995, 1996 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 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 <langinfo.h>
#include <errno.h>
#include <stddef.h>
#include "localeinfo.h"
/* This array duplicates `_nl_current' defined in setlocale.c; but since
the references here are not weak references, this guarantees that the
data for all the categories will be linked in. */
static const struct locale_data * *const nldata[] =
{
#define DEFINE_CATEGORY(category, category_name, items, a, b, c, d) \
[category] = &_nl_current_##category,
#include "categories.def"
#undef DEFINE_CATEGORY
};
/* Return a string with the data for locale-dependent parameter ITEM. */
char *
nl_langinfo (item)
nl_item item;
{
int category = _NL_ITEM_CATEGORY (item);
unsigned int index = _NL_ITEM_INDEX (item);
const struct locale_data *data;
if (category < 0 || category >= LC_ALL)
{
/* Bogus category: bogus item. */
__set_errno (EINVAL);
return NULL;
}
data = *nldata[category];
if (index >= data->nstrings)
{
/* Bogus index for this category: bogus item. */
__set_errno (EINVAL);
return NULL;
}
/* Return the string for the specified item. */
return (char *) data->values[index].string;
}
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