Re: Buttonize man page links

[Simon Josefsson <jas@extundo.com>]

Reiner Steib <4uce.02.r.steib@gmx.net> writes:

> Could we have an option to allow to specify the function to use? I'd
> prefer `woman' (Emacs 21) instead of `man'. Or should I really use
> "(fset 'man 'woman)"?

That's not very customize friendly.  I added the variable
`gnus-button-man-handler'.

But Customize behaves rather weird on it, when I mouse-2 to change it
to woman it works, but when I mouse-2 and select man again, nothing
happens.  Is the :type bad?

(defcustom gnus-button-man-handler 'man
  "Function to use for displaying man pages.
The function must take at least one argument with a string naming the
man page."
  :type '(choice (function :tag "Man" man)
		 (function :tag "Woman" woman)
		 function)
  :group 'gnus-article-buttons)

> And, what about your idea [1] to make customize-links buttonized?
>
> - M-x customize-variable RET gnus-list-identifiers RET
> - M-x customize-group RET gnus-article-treat RET
>
> I'd also like the following to be buttonized:
>
> - C-h v gnus-version RET
> - C-h f gnus RET
> - <f1> f gnus RET
> - M-x apropos foo RET
> - M-x apropos-variable foo RET
> - M-x apropos-command foo RET
> - ...
>
> At least the commands related to help or custom would be useful. And I
> don't think that they are more dangerous than links as
> <info://gnus/Top>. Sure, to buttonize all `M-x foo RET'-expressions
> would be too dangerous.

I like it.  But maybe there should be some policy, I have a feeling we
are beginning to add a gazillion buttons.  Maybe things will get slow.
Do people care?  Opinions?

IMHO as long as false positives are very uncommon, I like the buttons.

> Another feature request:
>
> Gnus shows news:<mid@fqdn> as links. But many people put MIDs in the
> text without "news:" (<mid@fqdn>) or even without "<" and ">"
> (mid@fqdn). WIBNI Gnus would buttonize those too? I know, that it's
> not really possible to distinguish MID's and mail addresses (without
> "mailto:") in this case. But couldn't we have a variable to allow:
>
> (a) always treat as MID
> (b) always treat as mail address
> (c) ask user
> (d) don't buttonize at all

Patches are welcome, I think. :-)