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#include <newlib.h>
 
#ifdef _MB_CAPABLE
 
/* Copyright (C) 1995-1998, 2000, 2001 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
 
   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, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */
 
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
 
#if defined STDC_HEADERS || defined _LIBC
# include <stdlib.h>
#endif
 
#if defined HAVE_STRING_H || defined _LIBC
# include <string.h>
#else
# include <strings.h>
#endif
#include <sys/types.h>
 
#include "loadinfo.h"
 
/* On some strange systems still no definition of NULL is found.  Sigh!  */
#ifndef NULL
# if defined __STDC__ && __STDC__
#  define NULL ((void *) 0)
# else
#  define NULL 0
# endif
#endif
 
/* @@ end of prolog @@ */
 
char *
_nl_find_language (name)
     const char *name;
{
  while (name[0] != '\0' && name[0] != '_' && name[0] != '@'
	 && name[0] != '+' && name[0] != ',')
    ++name;
 
  return (char *) name;
}
 
 
int
_nl_explode_name (name, language, modifier, territory, codeset,
		  normalized_codeset, special, sponsor, revision)
     char *name;
     const char **language;
     const char **modifier;
     const char **territory;
     const char **codeset;
     const char **normalized_codeset;
     const char **special;
     const char **sponsor;
     const char **revision;
{
  enum { undecided, xpg, cen } syntax;
  char *cp;
  int mask;
 
  *modifier = NULL;
  *territory = NULL;
  *codeset = NULL;
  *normalized_codeset = NULL;
  *special = NULL;
  *sponsor = NULL;
  *revision = NULL;
 
  /* Now we determine the single parts of the locale name.  First
     look for the language.  Termination symbols are `_' and `@' if
     we use XPG4 style, and `_', `+', and `,' if we use CEN syntax.  */
  mask = 0;
  syntax = undecided;
  *language = cp = name;
  cp = _nl_find_language (*language);
 
  if (*language == cp)
    /* This does not make sense: language has to be specified.  Use
       this entry as it is without exploding.  Perhaps it is an alias.  */
    cp = strchr (*language, '\0');
  else if (cp[0] == '_')
    {
      /* Next is the territory.  */
      cp[0] = '\0';
      *territory = ++cp;
 
      while (cp[0] != '\0' && cp[0] != '.' && cp[0] != '@'
	     && cp[0] != '+' && cp[0] != ',' && cp[0] != '_')
	++cp;
 
      mask |= TERRITORY;
 
      if (cp[0] == '.')
	{
	  /* Next is the codeset.  */
	  syntax = xpg;
	  cp[0] = '\0';
	  *codeset = ++cp;
 
	  while (cp[0] != '\0' && cp[0] != '@')
	    ++cp;
 
	  mask |= XPG_CODESET;
 
	  if (*codeset != cp && (*codeset)[0] != '\0')
	    {
	      *normalized_codeset = _nl_normalize_codeset (*codeset,
							   cp - *codeset);
	      if (strcmp (*codeset, *normalized_codeset) == 0)
		free ((char *) *normalized_codeset);
	      else
		mask |= XPG_NORM_CODESET;
	    }
	}
    }
 
  if (cp[0] == '@' || (syntax != xpg && cp[0] == '+'))
    {
      /* Next is the modifier.  */
      syntax = cp[0] == '@' ? xpg : cen;
      cp[0] = '\0';
      *modifier = ++cp;
 
      while (syntax == cen && cp[0] != '\0' && cp[0] != '+'
	     && cp[0] != ',' && cp[0] != '_')
	++cp;
 
      mask |= XPG_MODIFIER | CEN_AUDIENCE;
    }
 
  if (syntax != xpg && (cp[0] == '+' || cp[0] == ',' || cp[0] == '_'))
    {
      syntax = cen;
 
      if (cp[0] == '+')
	{
 	  /* Next is special application (CEN syntax).  */
	  cp[0] = '\0';
	  *special = ++cp;
 
	  while (cp[0] != '\0' && cp[0] != ',' && cp[0] != '_')
	    ++cp;
 
	  mask |= CEN_SPECIAL;
	}
 
      if (cp[0] == ',')
	{
 	  /* Next is sponsor (CEN syntax).  */
	  cp[0] = '\0';
	  *sponsor = ++cp;
 
	  while (cp[0] != '\0' && cp[0] != '_')
	    ++cp;
 
	  mask |= CEN_SPONSOR;
	}
 
      if (cp[0] == '_')
	{
 	  /* Next is revision (CEN syntax).  */
	  cp[0] = '\0';
	  *revision = ++cp;
 
	  mask |= CEN_REVISION;
	}
    }
 
  /* For CEN syntax values it might be important to have the
     separator character in the file name, not for XPG syntax.  */
  if (syntax == xpg)
    {
      if (*territory != NULL && (*territory)[0] == '\0')
	mask &= ~TERRITORY;
 
      if (*codeset != NULL && (*codeset)[0] == '\0')
	mask &= ~XPG_CODESET;
 
      if (*modifier != NULL && (*modifier)[0] == '\0')
	mask &= ~XPG_MODIFIER;
    }
 
  return mask;
}
 
#endif /* _MB_CAPABLE */