mlParserBase.h

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/*************************************************************************************
**
** Copyright 2007, MeVis Medical Solutions AG
**
** The user may use this file in accordance with the license agreement provided with
** the Software or, alternatively, in accordance with the terms contained in a
** written agreement between the user and MeVis Medical Solutions AG.
**
** For further information use the contact form at https://www.mevislab.de/contact
**
**************************************************************************************/
 
#ifndef ML_PARSER_BASE_H
#define ML_PARSER_BASE_H
 

 
// ML-includes
#include "mlBaseInit.h"
#include "mlModuleIncludes.h"
 
 
ML_START_NAMESPACE
 
 
// ------------------------------------------------------------------
// Class ParserBase
// ------------------------------------------------------------------

class MLBASEEXPORT ParserBase
{
public:

  ParserBase () : _source(nullptr), _pNext(nullptr), _eos(true) {}

  virtual ~ParserBase() {}

  virtual int init (const char *source);

  const char *getCurrentPos () { return _pNext; }

  bool endOfSource () { return _eos; }

  virtual const char *getErrorMessage (int errorCode);

  enum {
         kNoError = 0,
         kEmptyString,            
         kNumBaseErrorCodes,      
         kEndOfSource = -1        
       };
 

  static char *newString (const std::string &str);

  static void deleteString (char *str);
 
 
protected:

  void skipWhitespace ();
 

  const char *_source;
  const char *_pNext;
  bool _eos;
 
};
 
 
ML_END_NAMESPACE
 
#endif // __mlParserBase_H