include/IPSA/viewer/instructions/NVInstructionAnswerParsing.h

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#ifndef _NVINSTRUCTION_ANSWER_PARSING_H_
#define _NVINSTRUCTION_ANSWER_PARSING_H_
/*
 *  NVInstructionAnswerParsing.h
 *  
 * Copyright (c) 2007, 2008, 2009, University of Karlsruhe (for members see AUTHORS file)
 *
 * ISC License
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 * Created by Manfred Kroehnert
 */

#include <vector>
#include <string>
#include <sstream>
#include <iostream>

template<typename T>
bool convertAnswerToVector(const std::string& answer, std::vector<T>& result, unsigned int numberOfExpectedValues = 3)
{
    if (result.size() != numberOfExpectedValues)
    {
        std::cout << "result vector is of size " << result.size()
                << " but should be " << numberOfExpectedValues << std::endl;
        return false;
    }
    if ((answer.length() <= 0) || (0 == answer.compare("\r\n")))
    {
        std::cout << "answer string is empty!!" << std::endl;
        return false;
    }
    std::istringstream converter(answer);

    for (unsigned int i = 0; i < numberOfExpectedValues; ++i)
    {
        converter >> result.at(i);
        if (converter.fail())
        {
            std::cout
                    << "Problem decoding the answer. Return value at position: "
                    << i << " was malformed." << std::endl;
            return false;
        }
    }
    return true;
}

template<typename T>
bool convertAnswerToType(const std::string& answer, T& result)
{
    if ((answer.length() <= 0) || (0 == answer.compare("\r\n")))
    {
        std::cout << "answer string is empty!!" << std::endl;
        return false;
    }
    std::istringstream converter(answer);

    converter >> result;
    if (converter.fail())
    {
        std::cout << "Problem decoding the answer." << std::endl;
        return false;
    }
    return true;
}

#endif // _NVINSTRUCTION_ANSWER_PARSING_H_

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