syntax for matches_glob

The best I have been able to do is something like:

 

 

if { ($agent matches_glob "*android 2.1*") or ($agent matches_glob "*android 2.2*") or ($agent matches_glob "*os 1.0*") } { do something }.

 

 

but I am not sure of this is the most efficient way of doing something like this?

 

 

Any suggestions would be gratefully received.

 

 

 

thanks.