src/libprojectM/MilkdropPresetFactory/Eval.cpp

/**
 * projectM -- Milkdrop-esque visualisation SDK
 * Copyright (C)2003-2004 projectM Team
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 * See 'LICENSE.txt' included within this release
 *
 */
/* Evaluation Code */

#include <cstdio>
#include <cstdlib>

#include "Common.hpp"
#include "fatal.h"

#include "Eval.hpp"
#include "Expr.hpp"
#include "Param.hpp"
#include "Func.hpp"
#include "wipemalloc.h"

#include "BuiltinFuncs.hpp"


InfixOp *Eval::infix_add      = NULL;
InfixOp *Eval::infix_minus    = NULL;
InfixOp *Eval::infix_div      = NULL;
InfixOp *Eval::infix_mult     = NULL;
InfixOp *Eval::infix_or       = NULL;
InfixOp *Eval::infix_and      = NULL;
InfixOp *Eval::infix_mod      = NULL;
InfixOp *Eval::infix_negative = NULL;
InfixOp *Eval::infix_positive = NULL;


/* Initializes all infix operators */
int
Eval::init_infix_ops()
{
  Eval::infix_add       = new InfixOp (INFIX_ADD, 4);
  Eval::infix_minus     = new InfixOp (INFIX_MINUS, 3);
  Eval::infix_div       = new InfixOp (INFIX_DIV, 2);
  Eval::infix_or        = new InfixOp (INFIX_OR, 5);
  Eval::infix_and       = new InfixOp (INFIX_AND,4);
  Eval::infix_mod       = new InfixOp (INFIX_MOD, 1);
  Eval::infix_mult      = new InfixOp (INFIX_MULT, 2);

  /* Prefix operators */
  Eval::infix_positive  = new InfixOp (INFIX_ADD, 0);
  Eval::infix_negative  = new InfixOp (INFIX_MINUS, 0);

  return PROJECTM_SUCCESS;
}

/* Destroys the infix operator list. This should
   be done on program exit */
int
Eval::destroy_infix_ops()
{
  delete (Eval::infix_add);
  delete (Eval::infix_minus);
  delete (Eval::infix_div);
  delete (Eval::infix_or);
  delete (Eval::infix_and);
  delete (Eval::infix_mod);
  delete (Eval::infix_mult);
  delete (Eval::infix_positive);
  delete (Eval::infix_negative);

  Eval::infix_add       = NULL;
  Eval::infix_minus     = NULL;
  Eval::infix_div       = NULL;
  Eval::infix_or        = NULL;
  Eval::infix_and       = NULL;
  Eval::infix_mod       = NULL;
  Eval::infix_mult      = NULL;
  Eval::infix_positive  = NULL;
  Eval::infix_negative  = NULL;

  return PROJECTM_SUCCESS;
}