A regex that starts with .* and ends with (opt1|opt2)* will always match all 
strings.
I think you want something like .*( opt1|opt2)+ where the trailing + means at 
least one thing from opt1|opt2 must be present.

From: jenkinsci-users@googlegroups.com 
[mailto:jenkinsci-users@googlegroups.com] On Behalf Of Eric Fetzer
Sent: 01 March 2016 14:21
To: Jenkins Users
Subject: Re: Conditional Step Regular Expression Match

Thanks for the reply Eric!  Sorry, the square brackets are just from the 
Jenkins output.  My regex's look like this (4 single conditional steps based on 
the label passed in build.apps):

.*(NAP-Client|NAP-ALL)*
.*(NAP-Server|NAP-ALL)*
.*(NAP-Reports|NAP-ALL)*
.*(CAS|NAP-ALL)*

In this particular case, I passed in build.apps='NAP-Client,NAP-Server'

So it should go in and trigger the build associated with these two regex's.  
But what it does is go into all 4 and build them.  I'm guessing I could put 
anything at all in the Label and it would match for all of these conditions 
because of a mistake I'm making in my regex.

Thanks,
Eric

On Monday, February 29, 2016 at 2:32:08 PM UTC-7, Eric Fetzer wrote:
I don't understand why the following is a match for my regex.  Can someone tell 
me what makes it a match?

Regular expression run condition: Expression=[.*(OIS-Reports|OIS-ALL)*], 
Label=[OIS-Client,OIS-Server]
Run condition [Regular expression match] enabling perform for step 
[Trigger/call builds on other projects]

Thanks,
Eric
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