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

[Stephen Leake]

Eli Zaretskii <eliz@gnu.org> writes:

> Sorry to bust this party, guys, but I don't think this solution is
> "good enough".  

In general, or just for this test?

Let's fix the test first, and worry about the general case later.

> First, it won't DTRT with Windows file names that have
> backslashes (yes, they happen in Emacs).  

That's easy; add `expand-file-name'.

> Second, 'downcase' has a known gotcha of using the current buffer's
> case tables, which is something you definitely don't want here.

Ah; I had not considered non-ASCII stuff.

Is there some global variable we can let-bind to control that?

> Bottom line, doing this "right" is not so trivial, and a dedicated
> function is a better solution, IMO.  If you put it in files-x.el, it
> could be reused by other Lisp programs in the need of this.

Yes, that makes sense.

> IME, it doesn't pay off to use such incomplete solutions, the result
> is an annoying, albeit minor, maintenance burden.  

Not in this test.

-- 
-- Stephe