glibc/locale/nl_langinfo.c

55 lines
1.7 KiB
C

/* User interface for extracting locale-dependent parameters.
Copyright (C) 1995, 1996, 1997, 1999 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., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <langinfo.h>
#include <errno.h>
#include <stddef.h>
#include "localeinfo.h"
/* 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 = *_nl_current[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;
}