/*

Copyright (C) 1996, 1997 John W. Eaton

This file is part of Octave.

Octave 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.

Octave 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 Octave; see the file COPYING.  If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

*/

#if defined (__GNUG__)
#pragma implementation
#endif

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "error.h"
#include "str-vec.h"

#include "oct-map.h"
#include "utils.h"

string_vector
Octave_map::keys (void) const
{
  int len = length ();

  string_vector names (len);

  int i = 0;
  for (Pix p = first (); p != 0; next (p))
    names[i++] = key (p);

  return names;
}

int
Octave_map::array_length (void) const
{
  if (array_len == 0 && length () != 0)
    {
      Pix p = first ();
      array_len = contents(p).length ();
    }
  return array_len;
}

Octave_map&
Octave_map::assign (const idx_vector& idx, const std::string& key,
		    const octave_value_list& rhs)
{
  octave_value_list tmp = map[key];

  tmp.assign (idx, rhs);

  if (! error_state)
    {
      int n = tmp.length ();

      if (n > array_length ())
	{
	  octave_value fill_value = Matrix ();

	  for (Pix p = first (); p != 0; next (p))
	    contents(p).resize (n, fill_value);

	  array_len = n;
	}

      map[key] = tmp;
    }

  return *this;
}

Octave_map&
Octave_map::assign (const std::string& key, const octave_value_list& rhs)
{
  if (map.empty ())
    map[key] = rhs;
  else
    {
      octave_value_list tmp = map.contents (map.first ());

      if (tmp.length () == rhs.length ())
	map[key] = rhs;
      else
	error ("invalid structure assignment");
    }

  return *this;
}

Octave_map
Octave_map::index (idx_vector& idx)
{
  Octave_map retval;

  for (Pix p = first (); p != 0; next (p))
    {
      octave_value_list tmp = contents(p).index (idx);

      if (error_state)
	break;

      retval[key(p)] = tmp;
    }

  return error_state ? Octave_map () : retval;
}

/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; End: ***
*/