1: /* User interface for extracting locale-dependent parameters.
    2:    Copyright (C) 1995,96,97,99,2000,2001,2002,2005
    3:         Free Software Foundation, Inc.
    4:    This file is part of the GNU C Library.
    5: 
    6:    The GNU C Library is free software; you can redistribute it and/or
    7:    modify it under the terms of the GNU Lesser General Public
    8:    License as published by the Free Software Foundation; either
    9:    version 2.1 of the License, or (at your option) any later version.
   10: 
   11:    The GNU C Library is distributed in the hope that it will be useful,
   12:    but WITHOUT ANY WARRANTY; without even the implied warranty of
   13:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   14:    Lesser General Public License for more details.
   15: 
   16:    You should have received a copy of the GNU Lesser General Public
   17:    License along with the GNU C Library; if not, write to the Free
   18:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   19:    02111-1307 USA.  */
   20: 
   21: #include <langinfo.h>
   22: #include <locale.h>
   23: #include <errno.h>
   24: #include <stddef.h>
   25: #include "localeinfo.h"
   26: 
   27: 
   28: /* Return a string with the data for locale-dependent parameter ITEM.  */
   29: 
   30: #ifdef USE_IN_EXTENDED_LOCALE_MODEL
   31: char *
   32: __nl_langinfo_l (item, l)
   33:      nl_item item;
   34:      __locale_t l;
   35: #else
   36: char *
   37: nl_langinfo (item)
   38:      nl_item item;
   39: #endif
   40: {
   41:   int category = _NL_ITEM_CATEGORY (item);
   42:   unsigned int index = _NL_ITEM_INDEX (item);
   43:   const struct locale_data *data;
   44: 
   45:   if (category < 0 || category == LC_ALL || category >= __LC_LAST)
   46:     /* Bogus category: bogus item.  */
   47:     return (char *) "";
   48: 
   49:   /* Special case value for NL_LOCALE_NAME (category).
   50:      This is not a real item index in the string table.  */
   51:   if (index == _NL_ITEM_INDEX (_NL_LOCALE_NAME (category)))
   52:     {
   53: #ifdef USE_IN_EXTENDED_LOCALE_MODEL
   54: # define THISLOCALE l
   55: #else
   56: # define THISLOCALE _NL_CURRENT_LOCALE
   57: #endif
   58:       return (char *) THISLOCALE->__names[category];
   59:     }
   60: 
   61: #ifdef USE_IN_EXTENDED_LOCALE_MODEL
   62:   data = l->__locales[category];
   63: #elif defined NL_CURRENT_INDIRECT
   64:   /* Make direct reference to every _nl_current_CATEGORY symbol,
   65:      since we know only at runtime which categories are used.  */
   66:   switch (category)
   67:     {
   68: # define DEFINE_CATEGORY(category, category_name, items, a) \
   69:       case category: data = *_nl_current_##category; break;
   70: # include "categories.def"
   71: # undef DEFINE_CATEGORY
   72:     default:                    /* Should be impossible.  */
   73:       return (char *) "";
   74:     }
   75: #else
   76:   data = _NL_CURRENT_DATA (category);
   77: #endif
   78: 
   79:   if (index >= data->nstrings)
   80:     /* Bogus index for this category: bogus item.  */
   81:     return (char *) "";
   82: 
   83:   /* Return the string for the specified item.  */
   84:   return (char *) data->values[index].string;
   85: }
   86: #ifdef USE_IN_EXTENDED_LOCALE_MODEL
   87: weak_alias (__nl_langinfo_l, nl_langinfo_l)
   88: #else
   89: libc_hidden_def (nl_langinfo)
   90: #endif