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1 /** |
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2 * Relational pipes |
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3 * Copyright © 2018 František Kučera (Frantovo.cz, GlobalCode.info) |
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4 * |
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5 * This program is free software: you can redistribute it and/or modify |
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6 * it under the terms of the GNU General Public License as published by |
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7 * the Free Software Foundation, version 3 of the License. |
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8 * |
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9 * This program is distributed in the hope that it will be useful, |
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10 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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12 * GNU General Public License for more details. |
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13 * |
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14 * You should have received a copy of the GNU General Public License |
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15 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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16 */ |
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17 #pragma once |
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18 |
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19 #include <cstdlib> |
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20 #include <iostream> |
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21 #include <string> |
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22 #include <vector> |
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23 #include <algorithm> |
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24 |
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25 |
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26 namespace relpipe { |
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27 namespace in { |
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28 namespace cli { |
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29 |
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30 class Command { |
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31 public: |
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32 virtual ~Command() = default; |
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33 |
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34 /** |
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35 * Processes the inputs (stream + arguments) and generates output in the relational pipes format. |
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36 * |
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37 * @param input usually STDIN, may not be used if all data are passed as CLI arguments |
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38 * @param output usually STDOUT, relational data is passed here |
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39 * @param command command name, usualy not needed, may be significant if the same Command instance is used for several commands |
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40 * @param arguments CLI arguments containing data or parameters (format is specific to each command) |
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41 */ |
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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; |
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43 |
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44 }; |
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45 |
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46 } |
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47 } |
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48 } |
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