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Datei: explodename.c Sprache: C

Original von: Lyx^©

/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
   Contributed by Ulrich Drepper <[email protected]>, 1995.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU 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 General Public License for more details.

   You should have received a copy of the GNU 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 @@ */

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;
  while (cp[0] != '\0' && cp[0] != '_' && cp[0] != '@'
  && cp[0] != '+' && cp[0] != ',')
    ++cp;

  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;
}

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