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Posted to issues@jena.apache.org by "afs (via GitHub)" <gi...@apache.org> on 2024/03/31 21:22:55 UTC
[I] Update `PrefixMappingImpl` prefix checking rule to align with Turtle and XML 1.1 [jena]
afs opened a new issue, #2387:
URL: https://github.com/apache/jena/issues/2387
Follows on from #2383.
Update Jena to follow Turtle uniformly except for RDF/XML output which should remain as valid for XML 1.0 / Jena 5.0.0 and earlier.
This allows all Turtle prefixes in Turtle (TriG was not affected - it used `PrefixMap`, unlike Turtle which used jena-core `PrefixMappingImpl` for `Graph`).
XML 1.0 has a restricted set of characters allow in a qname namespace string, In addition, Jena's XML 1.0 support is limited to being less than U+10000 (one java char).
Turtle, and related syntaxes, including SPARQL, follow XML 1.1 (Turtle: [PN_CHARS_BASE](https://www.w3.org/TR/turtle/#grammar-production-PN_CHARS_BASE), such as 😀 U+1F600)
Other than a test added in PR #2384 that needs updating, no other tests change.
RDF/XML output compatibility maintained by isolating RDF/XML output with its own versions of qname splitting code.
The other issue users encounter, localname or a property start with a digit, which is legal Turtle and illegal RDF/XML, is not fixed (and can't be - it's a restriction in RDF/XML that proertties must be XML qnames).
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Re: [I] Update `PrefixMappingImpl` prefix checking rule to align with Turtle and XML 1.1 [jena]
Posted by "afs (via GitHub)" <gi...@apache.org>.
afs closed issue #2387: Update `PrefixMappingImpl` prefix checking rule to align with Turtle and XML 1.1
URL: https://github.com/apache/jena/issues/2387
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