1 /**

     2  * Relational pipes

     3  * Copyright © 2021 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 <vector>

    20 

    21 #include <relpipe/common/type/typedefs.h>

    22 #include <relpipe/cli/CLI.h>

    23 #include <relpipe/cli/RelpipeCLIException.h>

    24 

    25 #include "Configuration.h"

    26 

    27 namespace relpipe {

    28 namespace tr {

    29 namespace infertypes {

    30 

    31 class CLIParser {

    32 private:

    33 

    34 	relpipe::common::type::StringX readNext(std::vector<relpipe::common::type::StringX> arguments, int& i) {

    35 		if (i < arguments.size()) return arguments[i++];

    36 		else throw relpipe::cli::RelpipeCLIException(L"Missing CLI argument" + (i > 0 ? (L" after " + arguments[i - 1]) : L""), relpipe::cli::CLI::EXIT_CODE_BAD_CLI_ARGUMENTS);

    37 	}

    38 

    39 	MODE parseMode(const relpipe::common::type::StringX& value) {

    40 		if (value == L"auto") return MODE::AUTO;

    41 		else if (value == L"metadata") return MODE::METADATA;

    42 		else if (value == L"data") return MODE::DATA;

    43 		else throw relpipe::cli::RelpipeCLIException(L"Unable to parse mode value: " + value, relpipe::cli::CLI::EXIT_CODE_BAD_CLI_ARGUMENTS);

    44 	}

    45 

    46 	void addRelation(Configuration& c, RelationConfiguration& currentRelation) {

    47 		if (currentRelation.relation.size()) {

    48 			currentRelation.relationPattern = std::wregex(currentRelation.relation);

    49 			c.relationConfigurations.push_back(currentRelation);

    50 			currentRelation = RelationConfiguration();

    51 		}

    52 	}

    53 

    54 public:

    55 

    56 	static const relpipe::common::type::StringX OPTION_RELATION;

    57 	static const relpipe::common::type::StringX OPTION_MODE;

    58 

    59 	Configuration parse(const std::vector<relpipe::common::type::StringX>& arguments) {

    60 		Configuration c;

    61 		RelationConfiguration currentRelation;

    62 

    63 		for (int i = 0; i < arguments.size();) {

    64 			relpipe::common::type::StringX option = readNext(arguments, i);

    65 

    66 			if (option == OPTION_RELATION) {

    67 				addRelation(c, currentRelation); // previous relation

    68 				currentRelation.relation = readNext(arguments, i);

    69 			} else if (option == OPTION_MODE) {

    70 				currentRelation.mode = parseMode(readNext(arguments, i));

    71 			} else throw relpipe::cli::RelpipeCLIException(L"Unsupported CLI option: " + option, relpipe::cli::CLI::EXIT_CODE_BAD_CLI_ARGUMENTS);

    72 		}

    73 		addRelation(c, currentRelation); // last relation

    74 

    75 		return c;

    76 	}

    77 

    78 	virtual ~CLIParser() {

    79 	}

    80 };

    81 

    82 const relpipe::common::type::StringX CLIParser::OPTION_RELATION = L"--relation";

    83 const relpipe::common::type::StringX CLIParser::OPTION_MODE = L"--mode";

    84 

    85 }

    86 }

    87 }