On: “Hello, World” in zero lines of code

[ganafagol]

How is the difference between some helper tool's parser vs the corresponding copiler's parser an interesting hackable enterprise?

[esrauch → ganafagol]

It's interesting the same way any other code golf is interesting: artifical constraints breeds creativity.

This sort of thing actually does have real-world applicability though: eg security issues caused by different parsing by a validation layer versus the actual execution.