From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Andy Wingo Newsgroups: gmane.lisp.guile.bugs Subject: bug#38235: string-foldcase bug for trailing sigma Date: Sat, 16 Nov 2019 21:41:05 +0100 Message-ID: <87tv73mu5a.fsf@pobox.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="202289"; mail-complaints-to="usenet@blaine.gmane.org" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.2 (gnu/linux) To: 38235@debbugs.gnu.org Original-X-From: bug-guile-bounces+guile-bugs=m.gmane.org@gnu.org Sat Nov 16 21:42:14 2019 Return-path: Envelope-to: guile-bugs@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1iW4tV-000qSP-U9 for guile-bugs@m.gmane.org; Sat, 16 Nov 2019 21:42:10 +0100 Original-Received: from localhost ([::1]:49998 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iW4tU-0002eF-OC for guile-bugs@m.gmane.org; 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Sat, 16 Nov 2019 15:41:29 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Transfer-Encoding:Content-Type:MIME-Version:Message-ID:Date:Subject:To:From; bh=jzoxyQO6pGsm6bcRZioqIYrJlu1taKjghWuJf8dUNwU=; b=gxFrQgio1GjZZUcvre91Sb6TKau+XZ7SHXJdQxbZgYdmXe0e4h2g0asuGpXKpsI4Ewh9lkvspMq1A7VcbVDxjloaCPZhRNh4JDOoxO0PK7PI0pi39DIGeOm5ZQWsAHmpmyYinRQ3rFbPF9YNnWyrK0U4Nll2FCexnGrFOlyRegHNYL1d1Js5P1Xdcw+QeGna3uupzSoO3479zmVYLMTE93u4X6oC3mHuozMeUb/ESd3i5M/QU+VpZlQPEA8z5kvPOfDHnEae1ABnO2yGUHMKz5aIwhnu8yhowGV+Ddly4zIQN4Dle8MCc3GusxssQG8UG1UMYP58gXWC+BsBkURvSA==; Original-Received: from cha74-2-88-160-189-213.fbx.proxad.net ([88.160.189.213] helo=sparrow) by fanzine.igalia.com with esmtpsa (Cipher TLS1.0:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim) id 1iW4sm-0005oK-M7 for ; Sat, 16 Nov 2019 21:41:24 +0100 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x (no timestamps) [generic] [fuzzy] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 X-BeenThere: bug-guile@gnu.org List-Id: "Bug reports for GUILE, GNU's Ubiquitous Extension Language" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-guile-bounces+guile-bugs=m.gmane.org@gnu.org Original-Sender: "bug-guile" Xref: news.gmane.org gmane.lisp.guile.bugs:9443 Archived-At: Given the following example, using (rnrs unicode): (string-foldcase "=CE=9C=CE=88=CE=9B=CE=9F=CE=A3") The expected result is "=CE=BC=CE=AD=CE=BB=CE=BF=CF=83"; see R6RS libraries= section 1.2. However instead Guile's result is "=CE=BC=CE=AD=CE=BB=CE=BF=CF=82". Note that alth= ough =CE=A3 usually downcases to =CF=83, at the end of a string it's =CF=82. This test shows a limitation of defining string-foldcase as simply (string-downcase (string-upcase str)).