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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
#ifndef PARSER_HH
#define PARSER_HH
#include <exception>
#include <stdexcept>
#include "lexer.hh"
#include "node.hh"
namespace cait {
using node_tree = std::vector<node::node_set>;
class parser_exception : public std::runtime_error {
public:
explicit parser_exception(const std::string &);
};
struct token_bundle {
private:
using token_t = token;
public:
std::size_t &j;
token_t &token;
std::vector<token_t> &parsed_token_line;
std::vector<token_t> &token_line;
token_bundle(std::size_t &, token_t &, std::vector<token_t> &,
std::vector<token_t> &);
};
// https://stackoverflow.com/a/25652548/14452787
template <typename T> struct range_t {
private:
T _begin, _end;
public:
range_t(T, T);
T begin();
T end();
};
// https://stackoverflow.com/a/25652548/14452787
template <typename T> range_t<T> range(T, T);
class parser {
private:
token_tree _tree;
node_tree _nodes;
auto fix_tree(token_tree &) -> void;
auto prune_empty_token_lines() -> void;
static auto token_parse_build_declaration(token_bundle) -> void;
static auto token_parse_rule_variable(token_bundle) -> void;
static auto token_parse_include_subninja_declaration(token_bundle) -> void;
static auto token_parse_default_declaration(token_bundle) -> void;
static auto token_parse_rule_pool_declaration(token_bundle) -> void;
static auto token_parse_assignment_operator(token_bundle) -> void;
public:
explicit parser(token_tree &);
[[nodiscard]] auto tree() const noexcept -> const token_tree &;
[[nodiscard]] auto nodes() const noexcept -> const node_tree &;
auto generate_nodes(const std::string &,
const std::vector<std::string> &) noexcept(false) -> void;
};
} // namespace cait
#endif // PARSER_HH
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