/* Copyright (C) 1995-1998, 2000, 2001 Free Software Foundation, Inc.   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.   This program 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, or (at your option)   any later version.   This program 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 this program; 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#include <stdlib.h>#include <string.h>#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;}