Re: Collation tests in fns-tests.el

[Eli Zaretskii <eliz@gnu.org>]

> Date: Fri, 30 Oct 2015 22:28:09 +0200
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: michael.albinus@gmx.de, emacs-devel@gnu.org
> 
> > From: Ken Brown <kbrown@cornell.edu>
> > Date: Fri, 30 Oct 2015 13:51:45 -0400
> > Cc: Emacs <emacs-devel@gnu.org>
> > 
> > I'm curious why you put the following test in fns-tests.el:
> > 
> > ;; Punctuation and whitespace characters are not taken into account
> >    ;; for collation in other locales.
> >    (should
> >     (equal
> >      (sort '("11" "12" "1 1" "1 2" "1.1" "1.2")
> > 	  (lambda (a b)
> > 	    (let ((w32-collate-ignore-punctuation t))
> > 	      (string-collate-lessp
> > 	       a b (if (eq system-type 'windows-nt) "enu_USA" "en_US.UTF-8")))))
> >      '("11" "1 1" "1.1" "12" "1 2" "1.2")))
> > 
> > This suggests that punctuation and whitespace should definitely not be 
> > taken into account in non-POSIX locales.
> 
> They were found to be ignored in all the cases we tested until now.

I should have added "in UTF-8 locales" here, sorry.

But since Cygwin nowadays behaves like a UTF-8 locale (AFAIK), this
doesn't change the conclusions regarding Cygwin behavior, I think.