Method AppendComponent

util/folder/pathsplit.cpp:107–116

}

void TPathSplitStore::AppendComponent(const TStringBuf comp) {
    if (!comp || comp == TStringBuf(".")) {
        // ignore
    } else if (comp == TStringBuf("..") && !empty() && back() != TStringBuf("..")) {
        pop_back();
    } else {
        // push back first .. also
        push_back(comp);
    }
}

TStringBuf TPathSplitStore::Extension() const {
    return size() > 0 ? CutExtension(back()) : TStringBuf();