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// This file is part of Cait <https://github.com/Fuwn/cait>.
// Copyright (C) 2022-2022 Fuwn <[email protected]>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 3.
//
// 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
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// Copyright (C) 2022-2022 Fuwn <[email protected]>
// SPDX-License-Identifier: GPL-3.0-only
#include <fstream>
#include "cli.hh"
#include "context.hh"
#include "help.hh"
#include "lexer.hh"
#include "parser.hh"
#include "utility.hh"
namespace cait {
cli::cli(int argc, char **argv) : _argc(argc), _argv(argv) {
for (int i = 1; i < _argc; i++) {
if (_argv[i][0] == '-') {
std::string key = _argv[i];
std::string value;
if (i + 1 < _argc) {
value = _argv[i + 1];
i += 1;
}
options[key] = value.empty() ? std::nullopt : std::optional(value);
}
}
}
// auto cli::argc() const -> int { return this->_argc; }
// auto cli::argv() const -> char ** { return this->_argv; }
auto cli::arg(int i) -> std::optional<std::string> {
if (i < this->_argc) {
return std::string(this->_argv[i]);
} else {
return std::nullopt;
}
}
auto cli::option(const std::string &key)
-> std::optional<std::optional<std::string>> {
if (this->options.contains(key)) {
return this->options[key];
} else {
return std::nullopt;
}
}
auto cli::look() -> int {
switch (cait::utility::hash(this->arg(1).value_or("").c_str())) {
case cait::utility::hash("--help"):
case cait::utility::hash("-h"): {
std::cout << cait::help_message() << '\n';
} break;
case cait::utility::hash("--version"): {
std::cout << VERSION << '\n';
} break;
default: {
std::string cait_file_name = this->option("-f")->value_or("build.cait");
std::ifstream cait_file(cait_file_name, std::ios::in);
if (cait_file.is_open()) {
lexer lexer(cait_file);
parser parser(lexer.tree());
try {
parser.generate_nodes(cait_file_name, lexer.lines());
} catch (const parser_exception &e) {
std::cout << e.what() << '\n';
return 1;
}
context context(parser);
for (const auto &token_line : parser.tree()) {
for (const auto &token : token_line) {
std::cout << token.word << "(" << token.type.string() << ")";
}
std::cout << "\n\n";
}
for (auto &token_line : parser.nodes()) {
std::visit(
[](const auto &node) -> void {
std::cout << node.string() << '\n';
},
token_line);
}
// auto cc = context.rule("cc");
// if (cc.has_value()) {
// std::cout << "cc: '" << cc.value().string() << "'\n";
// } else {
// std::cout << "cc has no value\n";
// }
return 0;
}
std::cout << "cait: error: loading '" << cait_file_name
<< "': The system cannot find "
"the file specified.\n\n";
return 1;
} // break;
}
// auto option = this->option("-h");
// if (option.has_value()) {
// std::cout << "option exists ";
// if (option->has_value()) {
// std::cout << "with value " << option->value() << std::endl;
// } else {
// std::cout << "with no value\n";
// }
// } else {
// std::cout << "option does not exist\n";
// }
return 0;
}
} // namespace cait
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