- From: Steve Harris <steve.harris@garlik.com>
- Date: Tue, 3 Apr 2012 14:22:33 +0100
- To: Andy Seaborne <andy.seaborne@epimorphics.com>
- Cc: public-rdf-dawg@w3.org
On 2012-04-02, at 09:16, Andy Seaborne wrote: > > > On 01/04/12 21:32, Polleres, Axel wrote: >> 6) change the semantics of * and + only, leave everything else as in LC, cf. >> http://lists.w3.org/Archives/Public/public-rdf-dawg/2012JanMar/0285.html >> http://lists.w3.org/Archives/Public/public-rdf-dawg/2012JanMar/0286.html >> - Requires a new last call >> - May lead to formal objections within the working group? >> ± unsure whether it addresses commenters (mixing counting and non-counting) >> + more intuitive for common reachability use cases than option 3 > > 6.A: /, |, ! as there are in 2LC. > 6.B: *, +, ? are non-counting > 6.C: No DISTINCT > 6.D: No {} forms: {n}, {n,m}, {n,}, {,m} > > Option 6 also removes the {} forms. > > + Leaves the syntax open for the future > e.g. {*}, {?length}, {?length>5} > + {n,} is currently defined depending on * > + {n,m} for large m-n, has the similar computability issues (WM-1) Didn't someone (either in the WG, or a commentator) have a use case for {1,3} or similar? I don't have a feel for how important it is, and I'm sure many would implement it as an extension. - Steve -- Steve Harris, CTO Garlik, a part of Experian 1-3 Halford Road, Richmond, TW10 6AW, UK +44 20 8439 8203 http://www.garlik.com/ Registered in England and Wales 653331 VAT # 887 1335 93 Registered office: Landmark House, Experian Way, Nottingham, Notts, NG80 1ZZ
Received on Tuesday, 3 April 2012 13:23:14 UTC