In <9391203323671928.wa.paulgboulderaim....@listserv.ua.edu>, on
07/09/2013
at 09:56 AM, Paul Gilmartin <paulgboul...@aim.com> said:
>Thanks! I never woulda thoughta that. Seems to work for sed and
>grep; nearly an exhaustive sample. Now I need to try to understand
>it:
The sequence "(?" starts an extended pattern; in this case, a
look-around assertion (?!pattern) with a null pattern. 'A zero-width
negative look-ahead assertion. For example /foo(?!bar)/ matches any
occurrence of "foo" that isn't followed by "bar".'
--
Shmuel (Seymour J.) Metz, SysProg and JOAT
Atid/2 <http://patriot.net/~shmuel>
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)
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