/**
* Relational pipes
* Copyright © 2018 František Kučera (Frantovo.cz, GlobalCode.info)
*
* 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, 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 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/>.
*/
#pragma once
#include <cstdlib>
#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
namespace relpipe {
namespace in {
namespace cli {
class Command {
public:
virtual ~Command() = default;
/**
* Processes the inputs (stream + arguments) and generates output in the relational pipes format.
*
* @param input usually STDIN, may not be used if all data are passed as CLI arguments
* @param output usually STDOUT, relational data is passed here
* @param command command name, usualy not needed, may be significant if the same Command instance is used for several commands
* @param arguments CLI arguments containing data or parameters (format is specific to each command)
*/
virtual void process(std::istream& input, std::ostream& output, const relpipe::writer::string_t& command, const std::vector<relpipe::writer::string_t> &arguments) = 0;
};
}
}
}