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 #include <iostream>

    21 

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

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

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

    25 

    26 #include "Configuration.h"

    27 

    28 namespace relpipe {

    29 namespace in {

    30 namespace qr {

    31 

    32 class CLIParser {

    33 private:

    34 

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

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

    37 		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);

    38 	}

    39 

    40 	/**

    41 	 * TODO: use a common method

    42 	 */

    43 	bool parseBoolean(const relpipe::common::type::StringX& value) {

    44 		if (value == L"true") return true;

    45 		else if (value == L"false") return false;

    46 		else throw relpipe::cli::RelpipeCLIException(L"Unable to parse boolean value: " + value + L" (expecting true or false)", relpipe::cli::CLI::EXIT_CODE_BAD_CLI_ARGUMENTS);

    47 	}

    48 

    49 public:

    50 

    51 	static const relpipe::common::type::StringX OPTION_LIST_XXX;

    52 	static const relpipe::common::type::StringX OPTION_LIST_ZZZ;

    53 

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

    55 		Configuration c;

    56 

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

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

    59 

    60 			if (option == OPTION_LIST_XXX) {

    61 				c.listXXX = parseBoolean(readNext(arguments, i));

    62 			} else if (option == OPTION_LIST_ZZZ) {

    63 				c.listZZZ = parseBoolean(readNext(arguments, i));

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

    65 		}

    66 

    67 		return c;

    68 	}

    69 

    70 	virtual ~CLIParser() {

    71 	}

    72 };

    73 

    74 const relpipe::common::type::StringX CLIParser::OPTION_LIST_XXX = L"--list-xxx";

    75 const relpipe::common::type::StringX CLIParser::OPTION_LIST_ZZZ = L"--list-zzz";

    76 

    77 }

    78 }

    79 }