Jeremy Howard wrote:
>
> Ken Murchison wrote:
> > "John C. Amodeo" wrote:
> <...>
> > > And, are wildcards supported yet?
> >
> > In regex, yes. The extension follows the POSIX spec with the exception
> > of disallowing backreferences (no variables currently allowed in
> > Sieve). If you're really interested, have a look at the draft:
> >
> > http://www.imc.org/draft-murchison-sieve-regex
> >
> Also note that you don't need to use regex to support wild-cards. Just use
> the ':matches' comparator, which is part of the Sieve RFC, IIRC.
>
> BTW Ken, what are the performance implications of using regex instead of
> :matches?
I haven't done any comparisons myself, but I would almost guarantee that
it is slower than :matches. I wouldn't use :regex for everything, I'd
only use it when :matches doesn't serve your needs.
For most users, who probably don't know a regex from their elbow, I
would imagine that the simple glob-style wildcards of :matches are
sufficient. I'd consider :regex a 'power-user' feature. However,
unlike procmail, even if a user creates a bogus or mangled :regex,
Sieve's implicit keep will prevent the mail from vaporizing.
Ken
--
Kenneth Murchison Oceana Matrix Ltd.
Software Engineer 21 Princeton Place
716-662-8973 x26 Orchard Park, NY 14127
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