/* User interface for extracting locale-dependent parameters.

   Copyright (C) 1995-2018 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 (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)