Class ordering in an iRule

Thanks for a very good description as I was assuming class entries would retain their order.

 

 

So I have a question from an example I found on DevCentral to obtain the value of a list entry once I matchclass on it. Once I recieve the index, will I reliably be able to obtain the value as in the example:

 

 

set idx [matchclass $myURI starts_with $::class_redirect]

 

set idxtxt [lindex $::class_redirect [expr $idx - 1]]

 

 

will 'idxtxt' contain the value matched?

 

 

thanks..