inputParser.h

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/*
* -------------------------------------------
 * Copyright (c) 2021 - 2026 Prashant K. Jha
 * -------------------------------------------
 * PeriDEM https://github.com/prashjha/PeriDEM
 *
 * Distributed under the Boost Software License, Version 1.0. (See accompanying
 * file LICENSE)
 */
 
#ifndef UTILS_IO_INPUTPARSER_H
#define UTILS_IO_INPUTPARSER_H
 
#include <fstream>
#include <iostream>
#include <vector>
#include <algorithm>
 
namespace util {
    namespace io {
        class InputParser {
        public:
            InputParser(int &argc, char **argv) {
                for (int i = 1; i < argc; ++i)
                    this->tokens.push_back(std::string(argv[i]));
            }
 
            const std::string &getCmdOption(const std::string &option) const {
                std::vector<std::string>::const_iterator itr;
                itr = std::find(this->tokens.begin(), this->tokens.end(), option);
                if (itr != this->tokens.end() && ++itr != this->tokens.end())
                    return *itr;
 
                static const std::string empty_string("");
                return empty_string;
            }
 
            bool cmdOptionExists(const std::string &option) const {
                return std::find(this->tokens.begin(), this->tokens.end(), option) != this->tokens.end();
            }
 
        private:
            std::vector<std::string> tokens;
        };
    } // namespace io
} // namespace util
 
#endif // UTILS_IO_INPUTPARSER_H