From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <SRS0=erno=DR=clisp.org=bruno@sourceware.org>
Received: from mo4-p00-ob.smtp.rzone.de (mo4-p00-ob.smtp.rzone.de [85.215.255.24])
	by sourceware.org (Postfix) with ESMTPS id 65B5A3858C66
	for <cygwin@cygwin.com>; Mon, 31 Jul 2023 18:43:23 +0000 (GMT)
DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 65B5A3858C66
Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=clisp.org
Authentication-Results: sourceware.org; spf=none smtp.mailfrom=clisp.org
ARC-Seal: i=1; a=rsa-sha256; t=1690829001; cv=none;
    d=strato.com; s=strato-dkim-0002;
    b=MnY9Q+Y2oeTyfeaXRhPOA9BGXq9lnD9BF7O56lkhL8sWjZp/XY4ugNMPBy7AkgdBGJ
    QJ6CC8kBVkJETaB1GLyB94UhhlnkQJYgQSoxPbLV8jJ5sf3auir/mHZ0dQLD6NuM4uj5
    33cPn4MXZn8EnJR4RgEu6uXiItsNttLKM5psJm5ZpY+RJizO1NWfli81UJ0p10iNP9VI
    IcddjGe1TWPpZHD1RHOUMVVsbQvsJkOE4mXS1D+j/N7KS+8cjmOIyPphAlZmwUfc15bG
    6UJXtjEOmkRGmXh5FI9g1DrZ3TMwmRQsDuBu9xBn1pCOnHb8dlv5JXjxpykEfoeOWHkO
    jf5w==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; t=1690829001;
    s=strato-dkim-0002; d=strato.com;
    h=References:In-Reply-To:Message-ID:Date:Subject:To:From:Cc:Date:From:
    Subject:Sender;
    bh=4N0xRXUb7oZEXKpESsI0o2XRO3Uee6c38rxFsGyZU/A=;
    b=odQAzItgW+L9liRD9t9WNmaazTnCDO/lvjgMGp7zGsp88AGJUXmhRV//UJw2lQ9ueS
    0mghfg2dOEcR7Cclr5Lshcpr8GtvZ8lOwfGt0RFn4n7ihRmOwtCx58Duu80BaYD5yQRu
    wZnhCjQ9rS+hb93ZLzfnzJO/iWYtEJspWnLfqBKrfgKOdXeDX/8VnGQC0xRGmbBfg8M3
    Vwq55+tH7yahnCYTiYcOxGET6noo08AsxQupVPHqiZQZ9W6heBvOaXtbW7Yzi2Shcdk8
    e17PsWvKcdWLiiH6WnqnOq/2VkcOEqhSoUcz5VbLWOnZ5tfv3qa5QXYwU430JvAIT3qV
    lWmg==
ARC-Authentication-Results: i=1; strato.com;
    arc=none;
    dkim=none
X-RZG-CLASS-ID: mo00
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1690829001;
    s=strato-dkim-0002; d=clisp.org;
    h=References:In-Reply-To:Message-ID:Date:Subject:To:From:Cc:Date:From:
    Subject:Sender;
    bh=4N0xRXUb7oZEXKpESsI0o2XRO3Uee6c38rxFsGyZU/A=;
    b=rKcNoCw94kEp3AFsv5bq3t+r0vyyHx2kc3cX4+dsSYuicOJBeImOeoMCvsDmAHytQx
    i/fZfw+U9x/QU/A5gy+b95HVJuxyaKzu/rpydR/a8ZoD5CQaH7/QhP2QhzFVrlONxXTM
    lb9mPl1h/nbJfP87TLc9Fdawa0qrRLw94bkbmFxt4jwFs3oHT4tJQ7gMe+JdEJ4NuCjO
    mMErbgFmx653/+WtiD0ju9v07SFFvtvyRuVfyUL5qHo1VP9DG5vudIg4B6j8Rkp2l8t8
    s2b0KhtYdPpFEY8HadKyffTj0zb0umentdNFX94Xxd4tL1sSGDX64dkOZiNtv8rQxxpd
    9tFw==
DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; t=1690829001;
    s=strato-dkim-0003; d=clisp.org;
    h=References:In-Reply-To:Message-ID:Date:Subject:To:From:Cc:Date:From:
    Subject:Sender;
    bh=4N0xRXUb7oZEXKpESsI0o2XRO3Uee6c38rxFsGyZU/A=;
    b=SVFqxTNq1tuNcgi2H7I1KxktNOHjnAoxGOpsIEhK/2Norb9B/vy8MNQ0TRXyY793Mc
    ET7cfEumPuD9+/RAGJAw==
X-RZG-AUTH: ":Ln4Re0+Ic/6oZXR1YgKryK8brlshOcZlIWs+iCP5vnk6shH0WWb0LN8XZoH94zq68+3cfpPHj6C6mIk6D1piuCc2EubRrsS9rw=="
Received: from nimes.localnet
    by smtp.strato.de (RZmta 49.6.6 AUTH)
    with ESMTPSA id x129eaz6VIhL4rn
	(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256 bits))
	(Client did not present a certificate);
    Mon, 31 Jul 2023 20:43:21 +0200 (CEST)
From: Bruno Haible <bruno@clisp.org>
To: cygwin@cygwin.com
Subject: Re: character class "alpha"
Date: Mon, 31 Jul 2023 20:43:21 +0200
Message-ID: <4474610.kIfH5X4irW@nimes>
In-Reply-To: <ZMf7aqxU8awRQM4v@calimero.vinschen.de>
References: <3884636.3uDm00564X@nimes> <ZMfzbOOJth8Mk+rJ@calimero.vinschen.de> <ZMf7aqxU8awRQM4v@calimero.vinschen.de>
MIME-Version: 1.0
Content-Transfer-Encoding: 7Bit
Content-Type: text/plain; charset="us-ascii"
X-Spam-Status: No, score=-3.4 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H5,RCVD_IN_MSPIKE_WL,SPF_HELO_PASS,SPF_NONE,TXREP,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org
List-Id: <cygwin.cygwin.com>

Corinna Vinschen wrote:
> there are more of those expressions which are disabled on glibc and
> fail on Cygwin, for instance in test-c32iscntrl.c.  Maybe it's actually
> the better idea to disable them on Cygwin, too, rather than to change
> a working system...

Sure. There is no standard how to map the Unicode properties to POSIX
character classes. Other than the mentioned ISO C constraints for
'digit' and 'xdigit' and a few POSIX constraints, you are free to
map them as you like. For glibc and gnulib, I mapped them in a way
that seemed to make most sense for applications. But different
people might come to different meanings of "make sense".

Bruno