From: Eli Zaretskii <eliz@gnu.org>
To: nbtrap@nbtrap.com
Cc: 17130@debbugs.gnu.org
Subject: bug#17130: 24.4.50; Deficient Unicode case folding
Date: Sat, 29 Mar 2014 09:45:10 +0300 [thread overview]
Message-ID: <83y4ztec5l.fsf@gnu.org> (raw)
In-Reply-To: <87ob0qrugy.fsf@nbtrap.com>
> From: nbtrap@nbtrap.com
> Cc: 17130@debbugs.gnu.org
> Date: Fri, 28 Mar 2014 15:31:09 -0400
>
> Eli Zaretskii <eliz@gnu.org> writes:
>
> >> M-: (compare-strings "σ" nil nil "ς" nil nil t)
> >>
> >> ==> -1 ;; should be t
> >
> > No, because these characters are not a case pair.
>
> They're not a case pair in Emacs, but they should compare equally under
> Unicode case folding.
Emacs doesn't currently support that.
> >> Can someone that knows a thing about Unicode and emacs case tables speak
> >> to whether the latter could suffice for implementing full Unicode case
> >> folding?
> >
> > What is "full Unicode case folding"?
>
> Somthing that implements this:
> http://www.unicode.org/Public/UNIDATA/CaseFolding.txt
>
> And perhaps more. I don't know, but someone on this list probably does.
>
> If you look about a third of the way down, there's a line saying that
> U+03C2 (ς) should fold into U+03C3 (σ).
Patches are welcome to import those tables into Emacs, and make case
folding support them.
next prev parent reply other threads:[~2014-03-29 6:45 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-28 12:07 bug#17130: 24.4.50; Deficient Unicode case folding Nathan Trapuzzano
2014-03-28 15:51 ` Eli Zaretskii
2014-03-28 19:31 ` nbtrap
2014-03-29 6:45 ` Eli Zaretskii [this message]
[not found] ` <87ob0pnptc.fsf@nbtrap.com>
2014-03-29 13:15 ` Eli Zaretskii
2014-03-29 14:03 ` Nathan Trapuzzano
2014-03-29 14:45 ` Eli Zaretskii
2014-03-29 15:29 ` Nathan Trapuzzano
2014-03-29 17:37 ` Eli Zaretskii
2014-03-29 18:31 ` Nathan Trapuzzano
2014-03-29 18:36 ` Nathan Trapuzzano
2014-03-29 19:51 ` Eli Zaretskii
2014-03-29 20:15 ` Nathan Trapuzzano
2014-03-30 2:45 ` Eli Zaretskii
2014-03-29 19:50 ` Eli Zaretskii
2014-03-29 20:01 ` Nathan Trapuzzano
2019-09-29 14:23 ` Lars Ingebrigtsen
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