Re: RegEx: text not inside

On 2014-08-14 23:01, [email protected] wrote:
> a RegEx, that matches a string, which doesn't include a 2nd string.
> foo-xxx--bar -> no match
> foo-xyx--bar -> match
> It should match, if "foo.+?bar" doesn't contain "xx", something like
> "foo.+(?!xx)bar", but that matches always.

You mention wanting to match, but not what you want to do with the
match.  Just print it?  Extract portions?  Find lines that match and
then perform some other action?

You also write to the sed-users mailing list but your syntax at the
bottom looks like a Perlish regex, so I want to confirm that you're
using sed, not some other program.

In a Perlish, you'd do something like

  foo(?:(?!xx).)*bar

which works at least here in Python (which uses mostly-PCREs)

-tim