Syntax for regular expression in client-local.cfg

Here are a couple of working uses of regexp in client-local.cfg I have in
my setup:

[class=%^(oracledb)$]
log:`cat /hfc/xymon/client/etc/alert_log_list.txt`:10240
ignore (ORA-01013|Warning.*Heavy swapping observed on system in last 5
mins|ALTER SYSTEM ARCHIVE LOG|Thread.*advanced to log sequence.*LGWR
switch|Archived Log entry.*added for.*|Current log.*seq.*mem.*|swapped
in.*pct of memory swapped out|Private strand flush not complete|Setting
Resource Manager plan |Starting background process)
trigger (ORA-|checkpoint not complete|ARC|cannot allocate new log|core
dump|Errors in file|Incident details in|WARNING|corrupt)

[host=%aix]
file:/hfc/tmp
log:/var/log/ntp/ntp.log:12345


Erik D. Schminke | Associate Systems Programmer
Hormel Foods Corporation | One Hormel Place | Austin, MN XXXXX
Phone: (XXX) XXX-XXXX
user-15513f33c451@xymon.invalid | www.hormelfoods.com