depthcharge was: Ignoring pdftex primitives

[David Carlisle]

To atone for my incorrect posting earlier today, this one
does work, and does include the image, although it does reveal
something about how often pdftex parses ahead looking for the filename.
I wonder if this is guaranteed to work in future pdftexs, or whether
some other 2^n-1 number of noexpands would be required.....



\pdfoutput=1



abc  \pdfimage \noexpand\noexpand\noexpand\empty depthcharge.png
xyz

\bye

David