On Sat, June 14, 2008 5:08 am, Diogo Montagner wrote: > Some days ago I was trying to identify prepends using regular > expressions without knowing the AS.
You can do this with regexp back-references. ([0-9]+)(_\1)+ will match any AS that's prepended at least once, and ([0-9]+)(_\1)* will match the same AS any number of times. You could use explicit repetitions of '_\1' if you want to match a specific number of prepends. Regards, Tim. _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
