Andrés G. Aragoneses Yes, comment eats newlines. I edited my comment to show the code properly.

Jindřich Ivánek Ok that is more understandable. I think the in keyword maybe deserves an entire blog entry for itself, so if I were you, I would decouple this blog entry from this new potential one (if you're distilling complex topics, it's better to explain them with the most basic elements, not making use of other complex topics).

Andrés G. Aragoneses I think it deserve note in the article. I added it. Thanks for the pointer.