Brion-
Hmm, would you consider something like {{ISBN}} to
match the current
variable replacement syntax?
Originally I wanted to use $isbn, but both this and {{ISBN}} have the same
problem; if I use them in a link:
* [
http://www.foo.com/bar?{{ISBN}} bookshop]
The link no longer gets rendered on the [[Wikipedia:Book sources]] page
(no proper url regex match). Although it would still work after the
replacement, I considered that too confusing.
I've put it up on
test.wikipedia.org (slight code
style tweaks and
potential apostrophe bug fix in CVS), please play with it.
Doing right now ..
Regards,
Erik