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48 lines
1.3 KiB
C++
48 lines
1.3 KiB
C++
/**
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* Alee Forth: A portable and concise Forth implementation in modern C++.
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* Copyright (C) 2023 Clyne Sullivan <clyne@bitgloo.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef ALEEFORTH_DICTIONARY_HPP
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#define ALEEFORTH_DICTIONARY_HPP
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#include "types.hpp"
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#include <cstddef>
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#include <string_view>
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class Dictionary
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{
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public:
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Addr here = 1; // address zero will be used for BASE.
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Addr latest = 0;
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virtual Cell read(Addr) const = 0;
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virtual int write(Addr, Cell) = 0;
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Addr allot(Cell);
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void add(Cell);
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void addDefinition(std::string_view);
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Addr find(std::string_view);
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Addr getexec(Addr);
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private:
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bool issame(Addr, std::string_view, std::size_t);
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};
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#endif // ALEEFORTH_DICTIONARY_HPP
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