Function cleanPath

kdevplatform/util/path.cpp:324–358

}

static void cleanPath(QVector<QString>* data, const bool isRemote)
{
    if (data->isEmpty()) {
        return;
    }
    const int startOffset = isRemote ? 1 : 0;

    auto it = data->begin() + startOffset;
    while (it != data->end()) {
        if (*it == QLatin1String("..")) {
            // The path of a Path is always absolute. So we replicate standard
            // operating system command line behaviors of the command `cd ..` below.
            if (it == (data->begin() + startOffset)) {
                // Running `cd ..` in the root directory in Bash keeps the root directory current (no change).
                it = data->erase(it);
            } else {
                if (isWindowsDriveLetter(*(it - 1))) {
                    // Running `cd ..` in the root directory of a drive in Windows cmd
                    // keeps the drive root directory current (no change).
                    it = data->erase(it);
                } else {
                    // *it represents `cd ..` from *(it - 1) => remove both segments to simplify
                    it = data->erase(it - 1, it + 1);
                }
            }
        } else if (*it == QLatin1String(".")) {
            it = data->erase(it);
        } else {
            ++it;
        }
    }
    if (data->count() == startOffset) {
        data->append(QString());
    }
}

// Optimized QString::split code for the specific Path use-case
static QVarLengthArray<QString, 16> splitPath(const QString& source)