Re: [Condor-users] Regular Expressions in class ads comparisons?

[Alain Roy <roy@xxxxxxxxxxx>]

> rereading my post I realize that is misleading. I know I can use the NiceUser
> attribute for this particular case, but I'm interested in doing partial 
> string matches. Is this possible?

Short answer:

No

Long answer:

There are two versions of the ClassAd library. You see a ClassAd every time 
you do "condor_q -l" because it gives a ClassAd for each job.

All shipping versions of Condor use the so-called "old ClassAd" library, 
which is very straightforward, but also a bit simplistic. It does not 
support partial string matches in any way: there is just equality and 
inequality.

Internally, we have a new ClassAd library. If you look at any of our papers 
on ClassAds, you'll see that it discusses new ClassAds. New ClassAds are 
really much nicer than old ClassAds in so many ways. Among other things, 
you can do regular expression matching with strings, but that is about 
1/100th of the improvements in new ClassAds.

Switching to the new version of ClassAds is non-trivial. The new features 
are not backwards-compatible, and there are many technical issues in 
switching. We hope to switch in the future, but I can't give you a time 
line for when we might switch. Sorry!

-alain