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| From: | Eric Blake |
| Subject: | Re: have you ever mistyped [[:lower:]] as [:lower:] ? |
| Date: | Wed, 01 Sep 2010 11:10:56 -0600 |
| User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.8) Gecko/20100806 Fedora/3.1.2-1.fc13 Mnenhy/0.8.3 Thunderbird/3.1.2 |
On 09/01/2010 11:06 AM, Jim Meyering wrote:
Such a behavior conforms to POSIX, which explicitly says that [A-Z] has unspecified behavior outside the POSIX locale. (See POSIX 9.3.5 point 7 at <http://www.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap09.html#tag_09_03_05>.) Users invariably want the Emacs behavior, not the grep behavior.An easy sell. Good!
In fact, it might even be nice to preserve the locale-dependent existing behavior of collating-element ranges for '[[.A.]-[.Z.]]', even while changing the simpler [A-Z] to do the encoding-based range, so that a rare user that really DID mean to get locale-dependent collation range can still do so.
-- Eric Blake address@hidden +1-801-349-2682 Libvirt virtualization library http://libvirt.org
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