1 /**

     2  * Relational pipes

     3  * Copyright © 2020 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 out {

    30 namespace ini {

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

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

    51 			c.relationConfigurations.push_back(currentRelation);

    52 			currentRelation = RelationConfiguration();

    53 		}

    54 	}

    55 

    56 	Style parseStyle(relpipe::common::type::StringX style) {

    57 		if (style == L"auto") return Style::Automatic;

    58 		else if (style == L"dropped") return Style::Dropped;

    59 		else if (style == L"literal") return Style::Literal;

    60 		else if (style == L"literal-with-section-attribute") return Style::LiteralWithSectionAttribute; // TODO: better names

    61 		else if (style == L"standard") return Style::Standard;

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

    63 	}

    64 

    65 public:

    66 

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

    68 	static const relpipe::common::type::StringX OPTION_STYLE;

    69 	static const relpipe::common::type::StringX OPTION_WRITER_OPTION;

    70 

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

    72 		Configuration c;

    73 		RelationConfiguration currentRelation;

    74 

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

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

    77 

    78 			if (option == OPTION_RELATION) {

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

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

    81 			} else if (option == OPTION_STYLE) {

    82 				currentRelation.style = parseStyle(readNext(arguments, i));

    83 			} else if (option == OPTION_WRITER_OPTION) {

    84 				c.writerOptions.push_back({readNext(arguments, i), readNext(arguments, i)});

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

    86 		}

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

    88 

    89 		return c;

    90 	}

    91 

    92 	virtual ~CLIParser() {

    93 	}

    94 };

    95 

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

    97 const relpipe::common::type::StringX CLIParser::OPTION_STYLE = L"--style";

    98 const relpipe::common::type::StringX CLIParser::OPTION_WRITER_OPTION = L"--writer-option";

    99 

   100 }

   101 }

   102 }