- From: Peter F. Patel-Schneider <pfpschneider@gmail.com>
- Date: Thu, 10 Mar 2016 11:35:06 -0800
- To: Eric Prud'hommeaux <eric@w3.org>, public-data-shapes-wg@w3.org
I think that stem1 - stem2
is
[ sh:pattern "stem1*" ;
sh:not ( [ sh:pattern "stem2*" ] ) ]
peter
On 03/09/2016 12:01 PM, Eric Prud'hommeaux wrote:
> Oops, forgot about this action.
>
> In general, stems look like this in ShExC:
>
> <http://a.example/S1> {
> <http://a.example/p1> [<http://a.example/v>~]
> }
>
> this in ShExJ:
>
> {
> "type": "Schema",
> "prefixes": {},
> "shapes":{
> "http://a.example/S1": {
> "type": "Shape",
> "expression": {
> "type": "TripleConstraint",
> "predicate": "http://a.example/p1",
> "valueExpr": {
> "type": "ValueClass", "values": [
> { "type": "StemRange",
> "stem": "http://a.example/v"
> }
> ]
> }
> }
> }
> }
> }
>
> and this in RDF:
>
> [ a shex:Schema ;
> shex:shape <http://a.example/S1> ] .
>
> <http://a.example/S1>
> a shex:Shape ;
> shex:expression [
> a shex:TripleConstraint ;
> shex:predicate <http://a.example/p1> ;
> shex:valueExpr [
> a shex:ValueClass ;
> shex:values [
> a shex:StemRange ;
> shex:stem <http://a.example/v>
> ]
> ]
> ] .
>
> We also have stem (- stem)* a la
>
> <http://a.example/S1> {
> <http://a.example/p1> [<http://a.example/v>~
> - <http://a.example/v1>~
> - <http://a.example/v2>~
> - <http://a.example/v3>~]
> }
>
> and
>
> {
> "type": "Schema",
> "prefixes": {},
> "shapes":{
> "http://a.example/S1": {
> "type": "Shape",
> "expression": {
> "type": "TripleConstraint",
> "predicate": "http://a.example/p1",
> "valueExpr": {
> "type": "ValueClass", "values": [
> { "type": "StemRange",
> "stem": "http://a.example/v",
> "exclusions": [
> { "type": "Stem", "stem": "http://a.example/v1"},
> { "type": "Stem", "stem": "http://a.example/v2"},
> { "type": "Stem", "stem": "http://a.example/v3"}
> ]
> }
> ]
> }
> }
> }
> }
> }
>
> You can find the stem tests in <http://raw.githubusercontent.com/shexSpec/shexTest/master/validation/manifest.ttl> with
>
> SELECT * { ?s <http://www.w3.org/ns/shacl/test-suite#trait> <http://www.w3.org/ns/shacl/test-suite#Stem> }
>
> Gotta put my child to bed. will try to write to formalize later.
>
Received on Thursday, 10 March 2016 19:35:42 UTC