/Users/paul/Documents/phlogo/core/TokenStream.h

/*
 *  TokenStream.h
 *
 *  Author: Paul Hamilton
 *      Date: 8 Jul 2011
 *
 */
#ifndef _TOKENSTREAM_H
#define _TOKENSTREAM_H

#include <string>

namespace phlogo {

class TokenStream {
                
public:
                
        virtual bool withinSubExpression() = 0;
        virtual bool hasMoreSubExpression() = 0;
        virtual size_t findEndSubExpression() = 0;
        virtual void finishSubExpression(size_t pos) = 0;
        virtual bool atEnd() = 0;

};

}

#endif // _TOKENSTREAM_H