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From: Per Abrahamsen <abraham@dina.kvl.dk>
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Subject: Re: URLs containing `?' are not fully comprehended
Date: 17 May 2000 13:46:22 +0200
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Karl Kleinpaste <karl@charcoal.com> writes:

> Anyhow, "?anything" should still be considered part of the URL when
> buttonizing and highlighting.

It isn't, but I don't understand why.  Here is the regexp:

(defcustom 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\\)\\)"

As far as I can see, the relevant part is

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

which *does* include question mark.