76 lines
1.7 KiB
C++
76 lines
1.7 KiB
C++
/*
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Copyright 2019 Equinor ASA.
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This file is part of the Open Porous Media project (OPM).
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OPM is free software: you can redistribute it and/or modify
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it under the terms of the GNU 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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OPM 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 General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OPM. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef ACTION_PARSER_HPP
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#define ACTION_PARSER_HPP
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#include <vector>
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#include <string>
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#include "ASTNode.hpp"
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#include "ActionValue.hpp"
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namespace Opm {
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namespace Action {
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struct ParseNode {
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ParseNode(TokenType type_arg, const std::string& value_arg) :
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type(type_arg),
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value(value_arg)
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{}
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// Implicit converting constructor.
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ParseNode(TokenType type_arg) : ParseNode(type_arg, "")
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{}
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TokenType type;
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std::string value;
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};
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class Parser {
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public:
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static Action::ASTNode parse(const std::vector<std::string>& tokens);
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static TokenType get_type(const std::string& arg);
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private:
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explicit Parser(const std::vector<std::string>& tokens);
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ParseNode current() const;
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ParseNode next();
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size_t pos() const;
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Action::ASTNode parse_cmp();
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Action::ASTNode parse_op();
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Action::ASTNode parse_left();
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Action::ASTNode parse_right();
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Action::ASTNode parse_and();
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Action::ASTNode parse_or();
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const std::vector<std::string>& tokens;
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ssize_t current_pos = -1;
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};
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}
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}
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#endif
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