otbParser.h

Go to the documentation of this file.

/*
 * Copyright (C) 2005-2022 Centre National d'Etudes Spatiales (CNES)
 *
 * This file is part of Orfeo Toolbox
 *
 *     https://www.orfeo-toolbox.org/
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#ifndef otbParser_h
#define otbParser_h
 
#include "itkLightObject.h"
#include "itkObjectFactory.h"
 
#include "otb_muparser.h"
 
namespace otb
{
 
class ParserImpl;
 
 
class ITK_EXPORT Parser : public itk::LightObject
{
public:
  typedef Parser                        Self;
  typedef itk::LightObject              Superclass;
  typedef itk::SmartPointer<Self>       Pointer;
  typedef itk::SmartPointer<const Self> ConstPointer;
 
  itkNewMacro(Self);
 
  itkTypeMacro(Parser, itk::LightObject);
 
  typedef Parser ParserType;
  typedef double ValueType;
 
  typedef std::map<std::string, int> FunctionMapType;
 
  virtual void SetExpr(const std::string& Expression);
 
  ValueType Eval();
 
  void DefineVar(const std::string& sName, ValueType* fVar);
 
  void ClearVar();
 
  const std::string& GetExpr() const;
 
  const std::map<std::string, Parser::ValueType*>& GetVar() const;
 
  FunctionMapType GetFunList() const;
 
  bool CheckExpr();
 
protected:
  Parser();
  ~Parser() override;
  void PrintSelf(std::ostream& os, itk::Indent indent) const override;
 
 
private:
  Parser(const Self&) = delete;
  void operator=(const Self&) = delete;
 
  typedef itk::SmartPointer<ParserImpl> ParserImplPtr;
  ParserImplPtr                         m_InternalParser;
}; // end class
 
} // end namespace otb
 
#endif