Subject: bug#18150: 24.3.92; Uppercase umlauts and case-fold-search t

From: Michael Heerdegen <[email-masked]>
Date: Wed, 30 Jul 2014 17:11:01 +0200

Hello,

sorry if this is just a unibyte/multibyte thing I don't understand, but
it makes no sense to me:

  (let ((str "École")
        (case-fold-search t))
    (when (string-match "[[:upper:]]" str)
      (match-string 0 str)))

==> "c"

However,

  (let ((str "École")
        (case-fold-search nil))
    (when (string-match "[[:upper:]]" str)
      (match-string 0 str)))

==> "É"

I would expect "É" in both examples.

Thanks,

Michael.

In GNU Emacs 24.3.92.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.12.2)
 of 2014-07-17 on drachen
Windowing system distributor `The X.Org Foundation', version 11.0.11600000
System Description:	Debian GNU/Linux testing (jessie)

Important settings:
  value of $LC_ALL: de_DE.utf8
  value of $LC_COLLATE: C
  value of $LC_TIME: C
  value of $LANG: de_DE.utf8
  locale-coding-system: utf-8-unix