Subject: bug#38235: string-foldcase bug for trailing sigma

From: <[email-masked]>
Date: Sun, 17 Nov 2019 12:19:18 +0100

On Sat, Nov 16, 2019 at 09:41:05PM +0100, Andy Wingo wrote:
> Given the following example, using (rnrs unicode):
> 
>   (string-foldcase "ΜΈΛΟΣ")

Good catch. I think there's even a worse example: dotless
and dotted I [1]. Here it seems even impossible to do
up- and downcase correctly without knowing the language
context.

Cheers
[1] https://en.wikipedia.org/wiki/%C4%B0
-- tomás