Re: Poll: Change xref-show-definitions-function's default?

[Juri Linkov]

>> As part of this poll we could also decide what to do with the TAB keybinding
>> because especially after changing the value of 
>> 'xref-show-definitions-function'
>> to 'xref-show-definitions-completing-read' and using the *xref* buffer
>> exclusively for the grep-like output, it makes more sense for
>> TAB to behave as in grep-mode.
>
> No need to poll about that, I think.
>
> As long as we change the default to one of the current two alternatives,
> TAB won't play any role in either (the -at-bottom function sets up RET to
> call the same command).

I'm afraid the default of xref-show-definitions-function can't be changed
to xref-show-definitions-completing-read because as this poll indicates
it works satisfactorily only in combination with icomplete-mode and
also non-nil icomplete-show-matches-on-no-input.

> Then we can safely remove/change the TAB binding in xref--xref-buffer-mode,
> or alternatively, create a new major mode that is slightly more Grep-like,
> and use it in the default xref-show-xrefs-function.

Maybe a new submode could help to resolve this discrepancy.