Ability to enable/disable notifications by whether they match a regular expression about growl HOT 8 CLOSED

One downside is that this could be a slippery slope of users wanting ever more 
customization options (e.g., flow 
control, variables, Boolean operators).

Discussion of a good way to implement regular-expression-based filtering, 
including better ways than the one I 
suggested above, is welcome.

I don't think we should have regular expression filters. I do think we should 
have intelligent filtering/spam 
filtering of some kind. I use and like regex (pcre!) but this seems way 
overboard for what Growl does.

A related request that came in today 
(http://groups.google.com/group/growldiscuss/t/fe67b0d7d9502f0b) is 
to be able to set notifications' stickiness by the same means.

We should probably talk this one our Peter. Around the 1.4 range for 2.0.

Moving to 2.0.

Growl 2.1 has gained rules via applescript, see #535 for more information.  
While our rules implementation may yet need tweaking and work (as listed on 
that ticket), this is certainly doable now.  Flagging as fixed in source.

Also, yes, I know, Applescript doesn't have reg ex baked in, but there are 
plenty of ways for the determined user to do it, and we will want to add that 
to the documentation potentially.