/*
 * 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"

IDENT("@(#) RepStrucBase.cc (Gunther Schadow) 12/19/96");

#pragma implementation

#include "RepStrucBase.h"

#include "exception.h"
#include "logfile.h"
#include "misc.h"
#include "xios.h"
#include "ParseTrace.h"

void RepStrucBase::output(ostream& os) const
{
  const RepStrucBase *p;
  
  if(ishl7er(os) || isastmer(os))
    {
      LOGDEBUG("hl7/astm");
  
      for(p = this; p->_car != NULL; p=(RepStrucBase*)p->_cdr)
	p->_car->output(os);
    }
  else
    {
      LOGDEBUG("debug");
      
      os << DSBGR0 "RepStrucBase" << DSBGR1;

      if(_car != NULL)
	{
	  os << DSFRST;
	  _car->output(os);
	  
	  for(p = (RepStrucBase*)_cdr; p->_car != NULL;
	      p = (RepStrucBase*)p->_cdr)
	    {
	      os << DSSEPR;
	      p->_car->output(os);
	    }
	}
      else
	os << DSNOPS;

      os << DSEGRP;
    }
  
  LOGDEBUG("end");
}

result RepStrucBase::input(istream& is)
{
  RepStrucTracer tracer;

  if(isdebug(is))
    FATAL("can't read from debug stream");
  
  LOGDEBUG("hl7/astm");
  
  RepStrucBase *q= this;

  while(TRUE)
    {
      tracer++;

      if(q->_car == NULL)
	q->_car = q->ctora();

      if(q->_car->input(is) != SUCCESS)
	break;

      if(q->_cdr == NULL)
	q->_cdr = q->ctord();

      q = (RepStrucBase*)q->_cdr;
    } 
  
  // Cut off the rest
  if(q->_car != NULL)
    {
      delete q->_car;
      q->_car=NULL;
    }
  if(q->_cdr != NULL)
    {
      delete q->_cdr;
      q->_cdr=NULL;
    }
  
  if(q != this)
    return SUCCESS;
  else
    return FAIL;
}