/*
 * Copyright (c) 1995, 1996 Gunther Schadow.  All rights reserved.
 *
 * 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 of the License, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include "pg_config.h"

#pragma implementation

#include "exception.h"
#include "xios.h"

int xios::_index = -1;

xios::xios(ios& s)
#if WITH_XDR
 : _xdr(s.rdbuf())
#endif
{ 
  if ( _index == -1 )
    _index = s.xalloc();
  _level = Delimiters::toplevel;
  _flags = __debug; // neutral since nothing justifies HL7 default
  _ios   = &s;
  s.pword(_index) = this;
}

/*
 * We allow the level to be set to -2, but it won't be possible to read
 * delimiters with such level! This is useful, because composites can
 * always lower the level, even if it's already subcomponent.
 */

void xios::setlevel(Delimiters::level_t l)
{ 
  if(( Delimiters::toplevel >= l ) && ( l >= ( Delimiters::toplevel - 2 )))
    _level = l;
  else
    FATAL("level %d out of range", l);
}