|Don't ask to ask, just ask|
why not extending this mechanism to a more customizable and user definable way of linking?
I can imagine creating my own tags in the user settings, where I could be asked for a name for the tag and a link, with a placeholder (e.g. %s) in the appropriate position, that resolves the tag-link. Uhm, I don't know if you can understand me (I only hardly do), but probably an example will make that clear.
Say you got your own perl module review site located at http://www.myperlmodulereview.org, there you got the search script located in /cgi-bin/search.pl which takes the arguments in this way: module=HTML::Parser&order-by=date. Thus a correct URL would look like:
Now you could define your own tag simply by assigning it a name (say "myreview") and the resolver which consists of the above URL except that 'CGI' would be replaced with %s, so that the dynamic content will be placed there:
would then create the above link automagically.
Of course this would be private to each user but maybe one could then even implement a kind of importing mechanism, so that if footpad did another really useful tag I could adress it by using [footpad::newtag://linkto] or even globally import all of footpad's tags into my own 'namespace'.
... uhm .. do you get me?