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/**
* Alee Forth: A portable and concise Forth implementation in modern C++.
* Copyright (C) 2023 Clyne Sullivan <clyne@bitgloo.com>
*
* This program 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 3 of the License, or
* (at your option) any later version.
*
* This program 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 program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef ALEEFORTH_PARSER_HPP
#define ALEEFORTH_PARSER_HPP
#include "config.hpp"
#include "types.hpp"
#include "state.hpp"
#include <string_view>
class Parser
{
public:
static Error (*customParse)(State&, Word);
/**
* Parses (and evaluates) the given string using the given state.
* The string is stored in the state's input buffer, then parseSource()
* works through that using parseWord(). parseWord() will compile or
* execute as necessary.
*/
static Error parse(State&, const char *);
/**
* Parses (and evaluates) through the words stored in the state's input
* buffer.
*/
static Error parseSource(State&);
static void processLiteral(State&, Cell);
private:
/**
* Parses the given word using the given state.
*/
static Error parseWord(State&, Word);
/**
* Attempts to parse the given word into a number.
*/
static Error parseNumber(State&, Word);
};
#endif // ALEEFORTH_PARSER_HPP
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