- From: fantasai <fantasai.lists@inkedblade.net>
- Date: Sat, 05 Jul 2008 11:29:56 -0700
- To: Bert Bos <bert@w3.org>
- CC: www-style@w3.org
Bert Bos wrote: > > 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. :lang() information can come from places other than the document. Also it's not clear to me for XML whether the case-sensitivity of xml:lang from from XML's case-sensitivity rules and the string- matching concept (in which case it is case-sensitive) or from RFC 3066/RFC 4646's rules being applied to this particular attribute (in which case it is not). ~fantasai
Received on Saturday, 5 July 2008 18:30:39 UTC