Re: TAGS completion with (setq-local completion-ignore-case t)

[Eli Zaretskii]

> From: Morgan Willcock <morgan@ice9.digital>
> Date: Thu, 07 Mar 2024 09:14:04 +0000
> 
> I was trying to track down an issue with inconsistencies in completion
> matching between a custom capf function and the default TAGS capf
> function.
> 
> It seems that if a buffer is configured for case-insensitive completion
> matching, by setting the buffer-local value of completion-ignore-case to
> t, this does not have any effect on TAGS completion.
> 
> In order to get case-insensitive completion matching for TAGS, I had to
> also set the buffer local value of completion-ignore-case to t in the
> TAGS buffer.
> 
> Is there a technical reason why TAGS completion cannot use the value of
> completion-ignore-case that is set in the buffer where completion is
> initiated, or is this a bug in the implementation?

If you mean completion when you type "M-.", then this has its own user
option, tags-case-fold-search.  Is that what you want?