gkellogg commented on issue #1254: URL: https://github.com/apache/jena/issues/1254#issuecomment-1101793606
Yes, this was intentional, as terms were used too liberally as prefixes, which caused unintended consequences. The note in the [Changes since 1.0 Recommendation of 16 January 2014](https://www.w3.org/TR/json-ld11-api/#changes-since-1-0-recommendation-of-16-january-2014) says the following: > In JSON-LD 1.1, terms will be used as [compact IRI](https://www.w3.org/TR/json-ld11/#dfn-compact-iri) prefixes when compacting only if a [simple term definition](https://www.w3.org/TR/json-ld11/#dfn-simple-term-definition) is used where the value ends with a URI [gen-delim](https://tools.ietf.org/html/rfc3986#section-2.2) character, or if their [expanded term definition](https://www.w3.org/TR/json-ld11/#dfn-expanded-term-definition) contains an @prefix [entry](https://infra.spec.whatwg.org/#map-entry) with the value true. The 1.0 algorithm has been updated to only consider terms that map to a value that ends with a URI [gen-delim](https://tools.ietf.org/html/rfc3986#section-2.2) character. The operative step is Step 10 in the [Create Term Definition Algorithm](https://www.w3.org/TR/json-ld11-api/#algorithm-0) > Create a new [term definition](https://www.w3.org/TR/json-ld11/#dfn-term-definition), definition, initializing [prefix flag](https://www.w3.org/TR/json-ld11-api/#dfn-prefix-flag) to false, [protected](https://www.w3.org/TR/json-ld11-api/#dfn-protected) to protected, and [reverse property](https://www.w3.org/TR/json-ld11-api/#dfn-reverse-property) to false. And step 14.2.5: > If term contains neither a colon (:) nor a slash (/), simple term is true, and if the [IRI](https://tools.ietf.org/html/rfc3987#section-2) mapping of definition is either an IRI ending with a [gen-delim](https://tools.ietf.org/html/rfc3986#section-2.2) character, or a [blank node identifier](https://www.w3.org/TR/rdf11-concepts/#dfn-blank-node-identifier), set the [prefix flag](https://www.w3.org/TR/json-ld11-api/#dfn-prefix-flag) in definition to true. The operative bit is that this is not a _simple term_. This can be changed by adding `"@prefix": true` to the term definition ([playground link](https://json-ld.org/playground/#startTab=tab-nquads&json-ld=%7B%22%40id%22%3A%22http%3A%2F%2Fexample%2Fcollection%22%2C%22http%3A%2F%2Fexample%2Fp%22%3A%5B%22book%3AZZZ%22%5D%2C%22book%22%3A%5B%22book%3AYYY%22%5D%2C%22%40context%22%3A%7B%22book%22%3A%7B%22%40id%22%3A%22http%3A%2F%2Fonbetween.ch%2F3ms%2Fcms%23%22%2C%22%40type%22%3A%22%40id%22%2C%22%40prefix%22%3Atrue%7D%7D%7D)): ```json { "@id" : "http://example/collection";, "http://example/p"; : [ "book:ZZZ" ], "book" : [ "book:YYY" ], "@context" : { "book" : { "@id" : "http://onbetween.ch/3ms/cms#";, "@type" : "@id", "@prefix": true } } } ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
