X-Recipient: archive-cygwin AT delorie DOT com DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:message-id:date:from:mime-version:to:subject :references:in-reply-to:content-type; q=dns; s=default; b=jrvfsk L5qDVulRjFoDX6l1kqatGChBUC10JWuA4PFFB90vRecgVHBPox0bXREbPHCxeZUi pJYyWNpPkTh/imEAjblD1HklU8Sg86m+PydKCGG7vYS2etT5adVGuAEly8AdjUXO kWuc7gIQynx/xipqvTlntY4ePgAGOVUu+xu0E= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:message-id:date:from:mime-version:to:subject :references:in-reply-to:content-type; s=default; bh=5wBTHW6TlmYf K3/qcAWIoCWfYOs=; b=GyT1iBkWzFgV2v7iuI9MGmIQdJtgseqH+66/DeMkOuhv UezLReOh0QNpFfeEoLxexJ0cSEJyBS5ytxG410nU03uEX1SC2GiUE5tcyAVCN8tQ DlGMf3uPxpg3A8D0lnC7ZFUsw23nmG/9KCyit9EHNNAtR/G/p4xGny73v0XrGqI= Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com X-Spam-SWARE-Status: No, score=-8.6 required=5.0 tests=AWL,BAYES_50,KHOP_PGP_SIGNED,KHOP_THREADED,RCVD_IN_HOSTKARMA_W,RCVD_IN_HOSTKARMA_WL,RDNS_NONE,SPF_HELO_PASS,SPF_PASS,TW_EG autolearn=no version=3.3.1 Message-ID: <51ED6933.4050400@redhat.com> Date: Mon, 22 Jul 2013 11:17:39 -0600 From: Eric Blake User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130625 Thunderbird/17.0.7 MIME-Version: 1.0 To: cygwin AT cygwin DOT com Subject: Re: regex library fails git tests References: <20130721193953 DOT GC2661 AT calimero DOT vinschen DOT de> <51ECA00D DOT 6030105 AT gmail DOT com> <20130722081200 DOT GE2661 AT calimero DOT vinschen DOT de> In-Reply-To: <20130722081200.GE2661@calimero.vinschen.de> OpenPGP: url=http://people.redhat.com/eblake/eblake.gpg Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="TE5fTbxfkPeQsGpABH6IleJDUiJv162Fx" X-Virus-Found: No --TE5fTbxfkPeQsGpABH6IleJDUiJv162Fx Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 07/22/2013 02:12 AM, Corinna Vinschen wrote: >>> However, please note that this behaviour, while being provided by glibc >>> and now by Cygwin, is *not* standards-compliant. In the narrow sense >>> the characters beyond 0x7f are still invalid ASCII chars, and other >>> functions working with wchar_t strings won't be as forgiving when using >>> invalid input. >>> > After some sleep, I think I now understand why the glibc devs made > regcomp to work this way. This behaviour is backward compatible to non > locale-aware applications. In the "C" locale, a char is just some > arbitrary byte between 0 and 255. So this pattern always worked before > in the "C locale, therefore it makes sense that it continues to work, > even if it won't when using other locales/codesets. By the way, there is currently a big debate going on in the Austin Group (the people responsible for POSIX) on whether the "C" locale must be 8-bit clean (the way glibc behaves) or whether it was intended to allow UTF-8 encoding by default (the way musl libc wants to behave); and resolution of the debate will require input from the C standards committee. There may be some interesting fallout, no matter which solution is finally reached. http://austingroupbugs.net/view.php?id=3D663 --=20 Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org --TE5fTbxfkPeQsGpABH6IleJDUiJv162Fx Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.13 (GNU/Linux) Comment: Public key at http://people.redhat.com/eblake/eblake.gpg Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBCAAGBQJR7WkzAAoJEKeha0olJ0NqXJ0IAKBhuk6YKouOBwYOncZ/ZChj OTI5G/S4UEwtp3jqwF/4X1rZr/engJGc7i+cylDyuvx8p5ZK9yN21tf1tjAwI6tt RVRGUANjQTPvZOqDQQnNeNdsnPr92JmLiwLNQj2eRpH/CSL+RICf8ft8F7U1SGKC A0xesnsV7vV0np7Dt0kK0j7ECXqNdDPGm+Ppwp07XeLeRSYJ5cMGwxO3HkO/H1TC Sr/HjnkbtKg58S4RXy3tx77vkcispe/LWMpmOxj9mW9/xSaoRi5oDn/Vb00aWgv1 odViqYJ2ggL6qVmOatSP6AHCR3LBbmU1aCOjj3X8qtSfIUkv8a8OjMXpEGvPLms= =fpO2 -----END PGP SIGNATURE----- --TE5fTbxfkPeQsGpABH6IleJDUiJv162Fx--