On Sun, 2010-12-05 at 10:19 -0800, Chip Camden wrote: > Quoth RW on Sunday, 05 December 2010: > > On Sat, 4 Dec 2010 20:32:57 -0800 > > Gary Kline <kl...@thought.org> wrote: > > > > > On Sat, Dec 04, 2010 at 06:49:45PM -0800, xSAPPYx wrote: > > > > > > Also, the + operator means '1 or more' but needs escaped: > > > > %s/[0-9]\+/foo/g > > > > > > > > > Okay. I thought that the + must be perl-only regex... . > > > > It's from "Extended" REs rather than perl specifically, it works > > with sed -E but not plain sed. Not sure about vi.
> For me in works in vim but not in vi. In vi it requires setting the "extended" option which is unset by default - "set all" will display "noextended". In POSIX "extended" REs '+' is a metacharacter so the expression for "sed -E" and vi with "extended" enabled is simply "[0-9]+" (likewise for "grep -E" etc). It seems to be a "gnuism" that an escaped "+" works in "basic" REs, so it works in grep, gnu sed (gsed) etc. -- Wayne _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
