mario-dns/funcs.cpp

#include "funcs.h"

QString funcs::getValue(const QString &string, const QString &key)
{
    if (key.isEmpty())
        return QString();

    const QString keyPattern = key + "=";
    size_t valueStart = string.indexOf(keyPattern);
    if (valueStart == std::string::npos) {
        return QString();
    }

    valueStart += keyPattern.length();
    size_t valueEnd = string.indexOf(' ', valueStart);
    if (valueEnd == std::string::npos) {
        valueEnd = string.size();
    }
    std::string result = string.toStdString().substr(valueStart, valueEnd - valueStart);
    return result.c_str();
}