I've written some code to extract some help from dtx files (documented package), and I have tested it on a few packages for which I had the
.dtx. It seems, however, that
.dtx files are not shipped with TeXlive (or rather,
find /usr -name '*.dtx' only came up with very few of them).
I could simply go to CTAN and download package documentation one file at a time, but... that's not desirable
:). So how can I do that in the most efficient possible way?
EDIT: it appears that the absence of dtx is normal under Ubuntu 10.04 (Lucid). Only dtx from the koma-script and a few others are included.