void generateKwic(std::istream &in, std::ostream &out)
{
std::vector<std::vector<Word>> lines {readLines(in)};
std::vector<std::vector<Word>> preparedLines {prepareLines(lines)};
printLines(preparedLines, out);
}
void Viewport::rebuild()
{
// guess: we want the lock to carry over both methods..
SharedDataLock ctxlock(ctx->mutex);
SharedDataLock setslock(sets->mutex);
prepareLines(); // will also call reset() if indicated by ctx
updateBuffers();
}