[texhax] Passing Underscore

[Philip TAYLOR]

Uwe Lück wrote:

> What puzzles me here: I once encountered the problem many years ago.
> But in the recent year, I had no trouble at all with an underscore in the
> argument of \include (e.g.: \include{hsgraz_1}). (Difference 
> \include/\input?)

Ah, well, I didn't actually /check/ Peter's assertion that
one couldn't have an underscore in a filename : I've known (and
worked with) Peter for so long that I automatically believe
everything he says :-)

** Phil.