- From: Bert Bos <bert@w3.org>
- Date: Sat, 05 Jul 2008 11:44:26 +0200
- CC: www-style@w3.org
fantasai wrote: > > Currently :lang() is defined as doing |= match against the > language string (normalized to RFC 3066 format per [1]). > > It's not clear whether this match is case-sensitive or > case-insensitive. Since language codes are case-insensitive, > I believe this match should be case-insensitive. I've tested > Opera, Safari, and Firefox, and they agree. > > Proposed that in > http://www.w3.org/TR/CSS21/selector.html#lang > and > http://www.w3.org/TR/css3-selectors/#lang-pseudo > the phrase > "in the same way as if performed by the '|=' operator." > be replaced by > "in the same way as if performed by the '|=' operator > except that in this case a case-insensitive match is > performed." It's only case-insensitive if the document is. That's covered already by section 4.1.3, which says that text from the document is case-sensitive iff the document says it is. So the ':lang()' applied to an HTML document is indeed case-sensitive, but there may be other documents for which it is different. (Which may be difficult to test in practice: anybody know of a document format that has the concept of language and doesn't use RFC 3066/RFC 4646?) Bert -- Bert Bos ( W 3 C ) http://www.w3.org/ http://www.w3.org/people/bos W3C/ERCIM bert@w3.org 2004 Rt des Lucioles / BP 93 +33 (0)4 92 38 76 92 06902 Sophia Antipolis Cedex, France
Received on Saturday, 5 July 2008 09:45:31 UTC