gnus-button-url-regexp

["James H. Cloos Jr." <cloos@jhcloos.com>]

I'm unable to convince gnus-button-url-regexp to do the right thing
for a bare url containing a tilde.  Ie. www.example.com/~foobar/ fails
to buttonize; only the domain name part is buttonized.

Vague memories suggest this used to work (I upgraded from 5.8.2 when
5.8.5 was announced.)

Ahh.  And now that I've removed the doubled-\s and broken it at its
boundries, I can see why.  If there is no method, the regexp only
matches:

   [-a-zA-Z0-9_]+\.[-a-zA-Z0-9_]+\(\.[-a-zA-Z0-9_]+[-a-zA-Z0-9_/]+\)+

So.  Does anyone have any thoughts on how to extend that to catch
a slash and suitable trailing data?

Perhaps something like (appended directly to the above fragment):

   \(/\([-a-zA-Z0-9_=!?#$@~`%&*+|\/:;.,]\|\w\)*\)?

Ie, a / plus zero or more non-spaces.  All optional.  (Don't forget
to double up the \s before stuffing it in a .el.)

Thoughts?  

-JimC
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