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From: Steinar Bang <sb@metis.no>
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Subject: Re: New URL button rule (was: Re: The <word>.<word>.<word> rule)
Date: 15 May 2000 16:18:32 +0200
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>>>>> Per Abrahamsen <abraham@dina.kvl.dk>:

> Yep.  And there is a sane heuristic that cathes it, without
> generating zillions of false positives.  Words that start with
> "www." can be considered URL's.

I thought of suggesting that, until I found that the only two real
URLs that survived my paring down of Karl Kleinpaste's examples, did
_not_ in fact, start with www...:-)

> Try this, it even catches local parts (unlike the dot.dot.dot rule):

> (setq gnus-button-url-regexp
>       "\\b\\(\\(www\\.\\|\\(s?https?\\|ftp\\|file\\|gopher\\|news\\|telnet\\|wais\\|mailto\\):\\)\\(//[-a-zA-Z0-9_.]+:[0-9]*\\)?\\([-a-zA-Z0-9_=!?#$@~`%&*+|\\/:;.,]\\|\\w\\)+\\([-a-zA-Z0-9_=#$@~`%&*+|\\/]\\|\\w\\)\\)")

> Unless someone protests, I'll commit this change to CVS.

I can live with this, it catches most of the ones I would like to
catch, and should avoid the false matches that drives people nuts.

(But I really liked that predicate idea)