RE: [exim] Why doesn't MIME file extension match on this ACL…

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Autor: Philip Hazel
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A: Herb Martin
CC: exim-users
Assumpte: RE: [exim] Why doesn't MIME file extension match on this ACL?
On Thu, 23 Jun 2005, Herb Martin wrote:

> Should that logwrite show up in the debug output? Is there
> something like debugwrite?


logwrite writes immediately to Exim log, but if debugging is turned on,
writes to the log are also written to the debug output.

> > The regex looks OK, though it is not the fastest way to write
> > a regex for "ends with". But with short strings it probably
> > won't matter much.
>
> I would be happy to see a better way...


^(?>.*)(?<=abc|defg|hijkl|...)

is the fastest way to match "ends with abc or defg or hijkl or..." because
there is no backtracking. The only restriction is that each alternative
must be of a fixed length.

-- 
Philip Hazel            University of Cambridge Computing Service,
ph10@???      Cambridge, England. Phone: +44 1223 334714.
Get the Exim 4 book:    http://www.uit.co.uk/exim-book