Forum Discussion
Mike_Finney_119
Nimbostratus
NimbostratusiRule regex to normalize phone numbers?
Been searching but no luck so far looking for a iRule with a regex or some other method to normalize phone numbers from AD for use to pass to an SMS gateway.
I have adapted the method here: https://...
Kevin_Stewart
Employee
EmployeeIndeed:
% set num1 "123-456-7890"
% time { regsub -all {\D} $num1 "" } 10000
3.172 microseconds per iteration
% time { string map {"." "" " " "" "-" "" "(" "" ")" ""} $num1 } 10000
1.1674 microseconds per iteration
So then it's really a trade-off between speed and flexibility. Regex will catch more anomalies (ie. "123foo456bar7890") at the expense of CPU time. That said, the goal here was convert a string during access policy evaluation, which should only happen once per session.
