depthcharge was: Ignoring pdftex primitives

[Chris Rowley]

Taco wrote --
> > 
> > "widthcharge.png" needs only 1 \noexpand, "heightcharge.png" needs 2
> > (but more \noexpands don't do any harm). "./heightcharge.png" needs
> > none, of course, but that's not portable across filesystems.

Aagh!  I wish you had not told me that:-) ... now I need to completly
reconstruct my personal model of how that bit of TeX works ... let
alone why!

> Fuzzy internals indeed. (although sometime one can abuse them) 

Or try to, if one guesses correctly what happens internally.


chris