- From: Andy Seaborne <andy.seaborne@epimorphics.com>
- Date: Tue, 04 Oct 2011 15:11:02 +0100
- To: SPARQL Working Group <public-rdf-dawg@w3.org>
On 04/10/11 14:44, Gregory Williams wrote: > On Oct 3, 2011, at 5:39 PM, Andy Seaborne wrote: > >> I have prototyped: >> >> STRBEFORE >> STRAFTER >> REPLACE >> >> and didn't encountered anything unexpected. >> >> I propose adding these as resolution of JB-7 (part 1) > > I'm not very familiar with the relevant xsd functions here, but I'm very hesitant to support adding these if they introduce a lot of new complexity. For example, without digging into the XSD and Unicode spec documents, it's not obvious to me why: > > """ > fn:substring-before ( "abcdefghi", "--d-e-", "CollationA") returns "abc" > """ > (from http://www.w3.org/TR/xpath-functions/#func-substring-before) > > If the SPARQL functions being discussed operated on simple strings (or regex, as in REPLACE), I'd be more comfortable supporting their addition. > > .greg I am not proposing adding versions with collation sequences. We do not have functions with collation sequences elated to other F&O fucntions. e.g. fn:starts-with Andy >
Received on Tuesday, 4 October 2011 14:11:35 UTC