Re: limit length of xref file header line

[Dmitry Gutov <dgutov@yandex.ru>]

Hi Stephen,

On 26.05.2019 00:22, Dmitry Gutov wrote:
> On 25.05.2019 1:38, Stephen Leake wrote:
> 
>> 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)))))
> 
> Yep. That should work.

Just a heads-up: I just revisited this feature and changed the 
implementation to be closer to your proposed first version. Only with a 
check that a group indeed looks like a file name.

I considered other options (like requiring all xref-location-group 
overrides for file-based types to pass the value through some public 
formatter function), but it didn't seem like worth the other people's 
trouble. But we can revert to that approach in some future version.

So, see commit d314951043. Let me know if you encounter any problems.