DisplayBase.hh

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#pragma once

#include "Props.hh"
#include "Storage.hh"

namespace cadabra {


class DisplayBase {
    public:
        DisplayBase(const Kernel&, const Ex&);

        void output(std::ostream&);
        void output(std::ostream&, Ex::iterator);

        virtual void dispatch(std::ostream&, Ex::iterator)=0;

    protected:

        virtual bool needs_brackets(Ex::iterator it)=0;

        const Ex&     tree;
        const Kernel& kernel;

};

}