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From: | Randy Yates |
Subject: | Re: what is the regular expression that matches nothing? -- I think it is the null expression. When I do "egrep '' somefile" the result is the same as when I do "cat somefile". The result of "egrep -v '' somefile" is, as expected, nothing. HTH |
Date: | Fri, 24 Dec 2004 00:31:02 GMT |
User-agent: | Gnus/5.1002 (Gnus v5.10.2) XEmacs/21.4 (Rational FORTRAN, windows-nt) |
Then this is the regular expression that matches *everything*. I'm looking for the opposite. I tried using the complement operator ("[^...]") but it appears to only operate on arguments inside the brackets. By the way, a regular expression is a regular expression is a regular expression. If it works for grep, it should work for xemacs. --RY me <me@privacy.net> writes: > Randy Yates wrote: >> For use in the xemacs package "efs." > > Ah! Sorry, I didn't notice this part. > I don't know xemacs. > -- % Randy Yates % "The dreamer, the unwoken fool - %% Fuquay-Varina, NC % in dreams, no pain will kiss the brow..." %%% 919-577-9882 % %%%% <yates@ieee.org> % 'Eldorado Overture', *Eldorado*, ELO http://home.earthlink.net/~yatescr
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