Sean your comments are enlightening.
According to Professional Software Engineering on Thu, Jun 20, 2002 at
What is the best solution here?
One approach might be to maintain two separate greenlist files - one that
is plain non-regexp strings, and (a presumably much smaller) one with
regexps. Don't hand grep anything more than you want it to be parsing.
yeah soon after I sent this email I also thought of the mentioned
So the add_to_wl script will check for an exclude list of the
mass domains and if _not_ found will add to the domain_wl as
otherwise if this type of domain is found viz.
aol.com, hotmail.com, then the literal non-regex email address
will be added to a email_wl.
For the former I process with egrep and the later, the look(1) utility
seems to be most suitable.
(pity about the scalability of egrep -f ; my first encounter)
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