bug#21816: elisp-mode-tests fails on a case-preserving filesystem

[Dmitry Gutov]

On 11/03/2015 06:34 PM, Eli Zaretskii wrote:

> Both forms (and some additional ones) are perfectly canonical.

Like suggested, let's pick one? Speaking of personal preferences, it 
would be the form with forward slashes, and with path segments written 
with capitalization that the file system prefers. I know NTFS does 
prefer *one* of many way to write each file name, even if it accepts others.

> This isn't a xref-specific problem, so I think it should have a more
> general solution that any package could use.  It's not reasonable to
> expect from every Emacs developer to be an expert on subtle aspects of
> comparing Windows file names.  We should provide a tested solution for
> that.

I don't know which solution to pick, and I believe I don't know the 
problem well enough. We probably don't want to venture into Java-land 
here, and encapsulate any type of field into its separate data type, 
with its comparison function. But, well, we could do that.

In any case, it's not a hugely important problem, compared to others we 
still have.