/*

Copyright (C) 1996 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.

*/

/* Modified by Klaus Gebhardt, 1997 */

#if defined (__GNUG__)
#pragma implementation
#endif

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

#include "gripes.h"
#include "ov.h"
#include "ov-str-mat.h"
#include "ov-typeinfo.h"
#include "ops.h"

// string by string ops.

static octave_value
eq (const octave_value& a1, const octave_value& a2)
{
  CAST_BINOP_ARGS (const octave_char_matrix_str&,
		   const octave_char_matrix_str&);

  charMatrix cm1 = v1.char_matrix_value ();
  charMatrix cm2 = v2.char_matrix_value ();

  if (cm1.rows () == 1 && cm1.columns () == 1)
    {
      if (cm2.rows () == 1 && cm2.columns () == 1)
	return octave_value (cm1 (0, 0) == cm2 (0, 0));
      else
	SC_MX_BOOL_OP (char, c, cm1 (0, 0), \
		       charMatrix, m, cm2, \
		       c == m (i, j), 0.0);
    }
  else
    {
      if (cm2.rows () == 1 && cm2.columns () == 1)
	MX_SC_BOOL_OP (charMatrix, m, cm1, \
		       char, c, cm2 (0, 0), \
		       c == m (i, j), 0.0);
      else
	MX_MX_BOOL_OP (charMatrix, m1, cm1, \
		       charMatrix, m2, cm2, \
		       m1 (i, j) == m2 (i, j), \
		       "==", 0.0, 1.0);
    }
}

static octave_value
ne (const octave_value& a1, const octave_value& a2)
{
  CAST_BINOP_ARGS (const octave_char_matrix_str&,
		   const octave_char_matrix_str&);

  charMatrix cm1 = v1.char_matrix_value ();
  charMatrix cm2 = v2.char_matrix_value ();

  if (cm1.rows () == 1 && cm1.columns () == 1)
    {
      if (cm2.rows () == 1 && cm2.columns () == 1)
	return octave_value (cm1 (0, 0) != cm2 (0, 0));
      else
	SC_MX_BOOL_OP (char, c, cm1 (0, 0), charMatrix, m, cm2,
		       c != m (i, j), 1.0);
    }
  else
    {
      if (cm2.rows () == 1 && cm2.columns () == 1)
	MX_SC_BOOL_OP (charMatrix, m, cm1, char, c, cm2 (0, 0),
		       c != m (i, j), 1.0);
      else
	MX_MX_BOOL_OP (charMatrix, m1, cm1, charMatrix, m2, cm2,
		       m1 (i, j) != m2 (i, j), "!=", 1.0, 0.0);
    }
}

static octave_value
assign (octave_value& a1, const octave_value_list& idx,
	const octave_value& a2)
{
  CAST_BINOP_ARGS (octave_char_matrix_str&, const octave_char_matrix_str&);

  v1.assign (idx, v2.char_matrix_value ());
  return octave_value ();
}

void
install_str_str_ops (void)
{
  INSTALL_BINOP (eq, octave_char_matrix_str, octave_char_matrix_str, eq);
  INSTALL_BINOP (ne, octave_char_matrix_str, octave_char_matrix_str, ne);

  INSTALL_ASSIGNOP (octave_char_matrix_str, octave_char_matrix_str, assign);
}

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