Forum Discussion
Darren_21048
Nimbostratus
NimbostratusStream::expression & case insenitivity
I am trying to create a bit of a badword list and as a test intend to use this iRule. It works fine but I'm struggling to add case insensitivity to the mix. I've tried wrapping [string tolower] round...
hoolio
Cirrostratus
CirrostratusHi Darren,
Unfortunately, the stream filter is case sensitive and doesn't accept the (?i) notation to set the expression as case insensitive. As a workaround, you can use character classes to match both cases:
STREAM::expression "@[bB][aA][dD][wW][oO][rR][dD]@*****@"
I think it would be useful for there to be a "case sensitive" checkbox on the stream profile (or via an iRule flag). If you agree, could you open a case with F5 Support and ask for an enhancement? If you end up doing this, could you reply with the RFE ID so others can reference it?
Thanks, Aaron
