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From: "Andriy Sen" <apsen AT hotmail DOT com>
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Subject: Re: grep -P regexp problem
Date: Wed, 4 Mar 2009 13:33:11 -0500
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> This is not cygwin-specific, so it is really OT for this list, that
> being said...
    Sorry. I will try to figure out where to go then.

> grep -P treats the whole input as a single string, and outputs the
> line (or lines) containing the match for the pattern.  [^0] matches 
> ANYTHING except 0, including linefeeds.

    I guess I oversimplified the regexp :-(

G:\>cat test.s | grep -P "^[^0]1"


G:\>cat test.s | grep -P "^(|[^0])1"
1

G:\>cat test.s | grep -P "^(|.*[^0])1"
a
1

Thanks,
Andriy
 

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