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