Thank you! This work is very much appreciated. Carl
On Monday, March 1, 2021 at 5:18:19 PM UTC-8 Holger Knublauch wrote: > Hi Carl, > > since this topic has come up many times recently, and the existing > documentation of SHACL Node Expressions (and thus sh:values and > sh:TripleRules) in the spec was rather wanting, I have finally allocated > some time to produce examples for most of the node expression types: > > https://w3c.github.io/shacl/shacl-af/#node-expressions > > While we at TQ may produce all kinds of tutorials and product > documentation, the W3C specs (here, Community Report draft) are the > ultimate sources that most people will look up. > > HTH > Holger > > > On 2021-02-26 2:39 am, Carl Burnett wrote: > > Holger, that did the trick. Thanks! I felt like I had tried every possible > combination, but apparently not that one. > > > > Are there plans to develop a more detailed spec with examples, or maybe > further tutorials for SHACL? With other specs/languages, it’s possible to > google around and find a similar example to see someone else did something. > But with SHACL, I often feel alone in a giant, empty sea… > > > > Carl > > > > *From:* [email protected] <[email protected]> *On > Behalf Of *Holger Knublauch > *Sent:* Wednesday, February 24, 2021 3:58 PM > *To:* [email protected] > *Subject:* Re: [topbraid-users] How to use sh:minus > > > > *** External email: use caution *** > > > > On 2021-02-25 9:44 am, [email protected] wrote: > > The SHACL-AF spec > <https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fw3c.github.io%2Fshacl%2Fshacl-af%2F%23minus&data=04%7C01%7Ccburnett%40healthwise.org%7Ce9337db795af4bc22eed08d8d9201201%7Ccee5d4e942e548c28a033406fd5b9242%7C0%7C1%7C637498079069195732%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=1t7FN%2F4xE3N9dEXJgXbRtw%2BLlauByr3b06UGKtGoYfM%3D&reserved=0> > contains > a definition for a property called sh:minus, but I don't think my brain is > able to parse it properly. Some examples might help, but the only one I've > been able to find anywhere is in Example 3 of this tutorial > <https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.topquadrant.com%2Fgraphql%2Fvalues.html%23examples-family&data=04%7C01%7Ccburnett%40healthwise.org%7Ce9337db795af4bc22eed08d8d9201201%7Ccee5d4e942e548c28a033406fd5b9242%7C0%7C1%7C637498079069205727%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=lwiDfH4cBc05m%2FA3guXTzMTxDcqD1TO6LE5pf4Jy9sQ%3D&reserved=0>, > > where sh:this is used as the object of sh:minus. > > > > What I want to do is define a property shape that infers a list of values > that is calculated by taking all the values of another property shape -- > call it ex:includes -- and removing all the values of a third property > shape -- call it ex:excludes. But I can't seem to write a valid sh:values > statement that does this. > > > > Is sh:minus even the right property to use for this? If so, what is the > proper syntax? For what it's worth, this was one of my attempts: > > > > sh:values [ > > sh:nodes [ > > sh:path ex:includes; > > ] ; > > sh:minus ex:excludes; > > ] ; > > sh:minus takes any node expression and will simply compute the nodes > resulting from sh:nodes and then remove the nodes resulting from sh:minus. > > Did you try > > sh:values [ > > sh:nodes [ sh:path ex:includes ] ; > > sh:minus [ sh:path ex:excludes ]; > > ] ; > > > > The way you have written it would just exclude the property ex:excludes > itself, because that's a constant term node expression > > > > https://w3c.github.io/shacl/shacl-af/#node-expressions-constant > <https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fw3c.github.io%2Fshacl%2Fshacl-af%2F%23node-expressions-constant&data=04%7C01%7Ccburnett%40healthwise.org%7Ce9337db795af4bc22eed08d8d9201201%7Ccee5d4e942e548c28a033406fd5b9242%7C0%7C1%7C637498079069205727%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=Bs8%2FXa9oGl%2FoST8v%2BIydwJIJwOZUwtdC0QCc9stN%2FTI%3D&reserved=0> > > For the geeks here is the implementation of sh:minus > > public ExtendedIterator<RDFNode> eval(RDFNode focusNode, > NodeExpressionContext context) { > Set<RDFNode> sans = minus.eval(focusNode, context).toSet(); > return getInput().eval(focusNode, context).filterDrop(n -> > sans.contains(n)); > } > > Holger > > > > -- > You received this message because you are subscribed to the Google Groups > "TopBraid Suite Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/topbraid-users/ba2904a6-242d-4c9c-8ad3-ad334edfd5e1n%40googlegroups.com > > <https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgroups.google.com%2Fd%2Fmsgid%2Ftopbraid-users%2Fba2904a6-242d-4c9c-8ad3-ad334edfd5e1n%2540googlegroups.com%3Futm_medium%3Demail%26utm_source%3Dfooter&data=04%7C01%7Ccburnett%40healthwise.org%7Ce9337db795af4bc22eed08d8d9201201%7Ccee5d4e942e548c28a033406fd5b9242%7C0%7C1%7C637498079069215724%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=w8TG5iNDkdB7t7V1AvoyMMaCAM3%2F%2FAR9HxJ%2BOisPza4%3D&reserved=0> > . > > -- > You received this message because you are subscribed to a topic in the > Google Groups "TopBraid Suite Users" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/topbraid-users/I9rSZumVNVQ/unsubscribe > <https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgroups.google.com%2Fd%2Ftopic%2Ftopbraid-users%2FI9rSZumVNVQ%2Funsubscribe&data=04%7C01%7Ccburnett%40healthwise.org%7Ce9337db795af4bc22eed08d8d9201201%7Ccee5d4e942e548c28a033406fd5b9242%7C0%7C1%7C637498079069225720%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=Wlft0FsG8b0mcKyerJ04ArFCci9MnK2RPTZBFYX9DcQ%3D&reserved=0> > . > To unsubscribe from this group and all its topics, send an email to > [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/topbraid-users/551b2dea-a35d-c1a9-d84b-a7059371c777%40topquadrant.com > > <https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgroups.google.com%2Fd%2Fmsgid%2Ftopbraid-users%2F551b2dea-a35d-c1a9-d84b-a7059371c777%2540topquadrant.com%3Futm_medium%3Demail%26utm_source%3Dfooter&data=04%7C01%7Ccburnett%40healthwise.org%7Ce9337db795af4bc22eed08d8d9201201%7Ccee5d4e942e548c28a033406fd5b9242%7C0%7C1%7C637498079069225720%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=q7Su4fweVJeveKLaC1%2BpHPAUUUw%2BuKc%2FI1z5PGp40p4%3D&reserved=0> > . > -- > You received this message because you are subscribed to the Google Groups > "TopBraid Suite Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/topbraid-users/MWHPR19MB1598D1ED88DD623EE3F51502B79E9%40MWHPR19MB1598.namprd19.prod.outlook.com > > <https://groups.google.com/d/msgid/topbraid-users/MWHPR19MB1598D1ED88DD623EE3F51502B79E9%40MWHPR19MB1598.namprd19.prod.outlook.com?utm_medium=email&utm_source=footer> > . > > -- You received this message because you are subscribed to the Google Groups "TopBraid Suite Users" group. 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