1 /**

     2  * Relational pipes

     3  * Copyright © 2018 František Kučera (Frantovo.cz, GlobalCode.info)

     4  *

     5  * This program is free software: you can redistribute it and/or modify

     6  * it under the terms of the GNU General Public License as published by

     7  * the Free Software Foundation, version 3 of the License.

     8  *

     9  * This program is distributed in the hope that it will be useful,

    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

    12  * GNU General Public License for more details.

    13  *

    14  * You should have received a copy of the GNU General Public License

    15  * along with this program. If not, see <http://www.gnu.org/licenses/>.

    16  */

    17 #pragma once

    18 

    19 #include <cstdlib>

    20 #include <iostream>

    21 #include <string>

    22 #include <vector>

    23 #include <algorithm>

    24 

    25 

    26 namespace relpipe {

    27 namespace in {

    28 namespace cli {

    29 

    30 class Command {

    31 public:

    32 	virtual ~Command() = default;

    33 

    34 	/**

    35 	 * Processes the inputs (stream + arguments) and generates output in the relational pipes format.

    36 	 * 

    37 	 * @param input usually STDIN, may not be used if all data are passed as CLI arguments

    38 	 * @param output usually STDOUT, relational data is passed here

    39 	 * @param command command name, usualy not needed, may be significant if the same Command instance is used for several commands

    40 	 * @param arguments CLI arguments containing data or parameters (format is specific to each command)

    41 	 */

    42 	virtual void process(std::istream& input, std::ostream& output, const relpipe::writer::string_t& command, const std::vector<relpipe::writer::string_t> &arguments) = 0;

    43 

    44 };

    45 

    46 }

    47 }

    48 }