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/**
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* Relational pipes
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* Copyright © 2019 František Kučera (Frantovo.cz, GlobalCode.info)
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <vector>
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#include <relpipe/writer/typedefs.h>
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#include <relpipe/cli/CLI.h>
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#include <relpipe/cli/RelpipeCLIException.h>
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#include "Configuration.h"
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namespace relpipe {
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namespace tr {
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namespace awk {
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class CLIParser {
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private:
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// FIXME: move common methods/classes to relpipe-lib-cli or relpipe-lib-helper
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string_t readNext(std::vector<string_t> arguments, int& i) {
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if (i < arguments.size()) return arguments[i++];
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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);
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}
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public:
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static const string_t OPTION_EXPRESSION;
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Configuration parse(const std::vector<string_t>& arguments) {
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Configuration c;
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for (int i = 0; i < arguments.size();) {
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string_t option = readNext(arguments, i);
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if (option == OPTION_EXPRESSION) c.awkExpression = readNext(arguments, i);
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else throw relpipe::cli::RelpipeCLIException(L"Unsupported CLI option: " + option, relpipe::cli::CLI::EXIT_CODE_BAD_CLI_ARGUMENTS);
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}
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return c;
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}
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virtual ~CLIParser() {
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}
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};
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const string_t CLIParser::OPTION_EXPRESSION = L"--expression";
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}
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}
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}
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