Re: limit length of xref file header line

[Stephen Leake <stephen_leake@stephe-leake.org>]

Dmitry Gutov <dgutov@yandex.ru> writes:

>> So I'd like to shorten the filename line (called the "group" in xref).
>
> This is not exactly right. The group attribute can contain the
> filename, but it doesn't have to. Or else we'd have called in
> differently.
>
> BTW, check out the three definitions of
>
>   (cl-defmethod xref-location-group ...
>
> for the built-in classes.

Right; I did not look hard enough.

>> The patch below adds a new user option 'xref-display-filename' to
>> control this.
>
> ... the appropriate place to change
> the "display" would instead be in
>
>   (cl-defmethod xref-location-group ((l xref-file-location))
>     (oref l file))

So:

(cl-defmethod xref-location-group ((l xref-file-location))
  (cl-ecase xref-file-name-display
    (abs (oref l file))
    (nondirectory (file-name-nondirectory (oref l file)))))

-- 
-- Stephe