Forum: Cfengine Help
Subject: Re: regex help
Author: sauer
Link to topic: https://cfengine.com/forum/read.php?3,21705,21716#msg-21716
neilhwatson Wrote:
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> I'm very confused now. PCREgrep matches both
> lines.
You're right.
I was testing with the \s inside the negative lookbehind, which needs to be
there in the provided pattern. I think this is because the \s+ in the repeated
match at the beginning will have matched all of the spaces, so the \s*
preceeding the command has nothing to match. When you then stick the negative
lookbehind in there, it's thus being searched for right up against the path to
the command.
I thought that making the \s+ into a \s+? so that it becomes minimally greedy
should also resolve that, but it doesn't appear to be the case. So, what you
have to do (if you want that) is stop eating the fifth whitespace grouping,
(:?\S+\s+){4}\S+(?<!00 3 1 \* \*)\s+/usr/scripts.*
instead, as that leaves the whitespace right before the path to the command
alone, and you shift your negative lookbehind back to preceeding the space
instead of preceeding the command.
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