On Wed, 16 Dec 2009, James Michael Fultz wrote:
:0
* ^(List-(Id|Post)|X-(Mailing-)?List):.*<(mailto:)?\/[^(_at_)(_dot_)]+
ML/$MATCH/
So far it works for all except one of the intended matches. Headers
such as the following:
List-Post: <mailto:listname(_at_)example(_dot_)com>
The trick here is that regex is 'right-greedy'. It will try to make the
right most part of the regex ([^(_at_)(_dot_)]+) match as much of the right end of
the string as it can, as long as the remaining left side of the regex can
match. Therefore the 'mailto:' is NOT matched by the explicit "mailto:";
in parentheses because it is optional, and the 'right-greediest'
behaviour is for [^(_at_)(_dot_)]+ to suck up all the characters back to the header
colon.
Easiest work around for this, would be to use [^@:.]+ at the end.
- Charles
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