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88 lines
2.2 KiB
C++
88 lines
2.2 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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#include "alee.hpp"
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#include "memdict.hpp"
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#include <fstream>
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#include <iostream>
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#include <vector>
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static bool okay = false;
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static void parseLine(Parser&, State&, std::string_view);
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static void parseFile(Parser&, State&, std::istream&);
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int main(int argc, char *argv[])
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{
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MemDict dict;
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State state (dict);
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Parser parser;
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std::vector args (argv + 1, argv + argc);
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for (const auto& a : args) {
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std::ifstream file (a);
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parseFile(parser, state, file);
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}
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okay = true;
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//std::cout << state.size() << ' ' << state.compiling << "> ";
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parseFile(parser, state, std::cin);
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return 0;
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}
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int user_sys(State& state)
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{
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switch (state.pop()) {
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case 0:
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std::cout << state.pop() << std::endl;
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break;
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case 1:
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std::cout << static_cast<char>(state.pop()) << std::endl;
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break;
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}
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return 0;
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}
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void parseLine(Parser& parser, State& state, std::string_view line)
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{
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ParseStatus r;
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do {
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r = parser.parse(state, line);
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} while (r == ParseStatus::Continue);
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if (r == ParseStatus::Finished) {
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if (okay)
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std::cout << " ok" << std::endl;
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} else {
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std::cout << to_string(r) << ": " << line << std::endl;
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}
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}
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void parseFile(Parser& parser, State& state, std::istream& file)
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{
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while (file.good()) {
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std::string line;
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std::getline(file, line);
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parseLine(parser, state, line);
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}
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}
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