Le 15-09-2013, à 08:14:07 -0500, Tim Chase a écrit :
> On 2013-09-15 14:23, Steve wrote:
> > IP mm/dd/yy hh:mm
> >
> > with IP being an standard IP address. This file is being populated
> > by a script which basically gets the IP and writes it at the end of
> > the file. But sometimes, this fails and I get a line with only the
> > date and time. My goal is to rid of these lines.
> >
> > I tried something like:
> >
> > :g!/^([0-9]{1,3}.)3.([0-9]{1,3})/d
> >
> > but it erases the whole file. I know that this regexp is not
> > perfect (it will also catch 999.999.999.999, which isn't a valid IP
> > address), but that doesn't seem to be the problem here.
>
> As long as you're okay with the 999.999.999.999 being considered
> kosher, and skipping IPv6 addresses, you should be able to use
>
> :v/^\%(\d\{1,3\}\.\)\{3\}\d\{1,3\}/d
Works perfectly, thanks!
> that would be
>
> :v/ On every line that doesn't match the following
> ^ at the start-of-line
> \%( a non-capturing group
> \d\{1,3\} 1-3 digits
> \. followed by a literal period
> \) the close of the group
> \{3\} that group 3x (the first 3 quads)
> \d\{1,3\} another set of 1-3 digits (the last quad)
> /d delete them
And thanks for the explanation. Did you format this by hand or do you
have a special plugin that formats the break-up? It's awesome!
Steve
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