- From: Jeremy Carroll <jjc@hpl.hp.com>
- Date: Mon, 23 Apr 2007 11:59:23 +0100
- To: Jeremy Carroll <jjc@hpl.hp.com>
- CC: Addison Phillips <addison@inter-locale.com>, eric@w3.org, fsasaki@w3.org, public-rdf-dawg-comments@w3.org, public-i18n-core@w3.org
Oops - I hadn't read the whole thread. I will wait and see what Addison says next ... As is, the comment is being addressed to my satisfaction. Jeremy Jeremy Carroll wrote: > > I would be happy with changes as suggested by Addison > > Jeremy > > Addison Phillips wrote: >> All, >> >> I sent comments that were apparently similar to Jeremy's to Felix >> privately. The following changes are better, but still not quite right >> in my opinion. >> >> You have currently proposed: >> >> -- >> Returns true if language-range (second argument) matches language-tag >> (first argument). language-range is a basic language range per >> Matching of Language Tags [RFC4647] section 2.1 and the matching >> scheme is basic filtering defined in [RFC4647] section 3.3.1. A >> language-range of "*" matches any non-empty language-tag string. >> -- >> >> I observe: >> >> 1. Language matching in RFC 4647 is defined in terms of "language >> priority lists" made up of "language ranges". It may be useful to >> incorporate this concept into SPARQL query. If necessary, you may >> limit the list to a single range. >> >> 2. The special range "*" usually matches all language tags, including >> the empty tag. If it didn't, you would have the problem of not being >> able to select contents with no tag except explicitly. That is, to >> select everything, you'd need two queries: one for "*" and one for the >> empty tag. (Obviously, omitting the langmatches statement has the same >> effect, so your current text may be by design??) >> >> 3. You don't have a way of specifying the empty tag, or at least you >> don't enumerate it. The empty tag only matches itself. That is: >> >> FILTER langMatches( lang(?title), "") >> >> only matches items with an xml:lang="" >> >> You should call this fact out. >> >> I would thus propose that you change your text to something like this: >> >> -- >> Returns true if the language priority list in the second argument >> matches the language tag in the first argument according to the Basic >> Filter matching scheme in Matching of Language Tags [RFC 4647] Section >> 3.3.1. The language range may consist of one or more basic language >> ranges (RFC 4647 Section 2.1) separated by commas or the empty string. >> The special range "*" matches all language tag values, including the >> empty value, while the empty string matches only items whose language >> tag is the empty string. >> -- >> >> Addison >> > -- Hewlett-Packard Limited registered Office: Cain Road, Bracknell, Berks RG12 1HN Registered No: 690597 England
Received on Monday, 23 April 2007 11:00:35 UTC