ShTokenizer.hpp

// Sh: A GPU metaprogramming language.
//
// Copyright 2003-2005 Serious Hack Inc.
// 
// 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., 51 Franklin Street, Fifth Floor, Boston, 
// MA  02110-1301, USA
#ifndef SHTOKENIZER_HPP
#define SHTOKENIZER_HPP

#include <stack>
#include <queue>
#include <vector>
#include <iosfwd>
#include "ShDllExport.hpp"
#include "ShRefCount.hpp"
#include "ShVariable.hpp"
#include "ShBlock.hpp"
#include "ShException.hpp"
#include "ShToken.hpp"

namespace SH {

struct 
SH_DLLEXPORT ShTokenArgument {
  ShTokenArgument(const ShVariable& result, const ShBlockListPtr& blockList)
    : result(result), blockList(blockList)
  {
  }
  
  ShVariable result; 
  ShBlockListPtr blockList; 
};

class 
SH_DLLEXPORT ShTokenizerException : public ShException {
public:
  ShTokenizerException(const std::string& error);
};
  
class 
SH_DLLEXPORT ShTokenizer {
public:
  ShTokenizer();



  bool pushArgQueue();
  bool pushArg();
  bool processArg(const ShVariable& result);



  ShTokenArgument getArgument();
  void popArgQueue();

  ShBlockListPtr blockList();

private:
  std::stack<ShBlockListPtr> m_listStack;
  std::stack< std::queue<ShTokenArgument> > m_argQueueStack;
};

}

#endif

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