Implement SPARQL 1.2 grammar support#1
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Add support for SPARQL 1.2 features including:
- Triple terms: <<( :s :p :o )>>
- Reified triples: << :s :p :o >>
- Annotations: {| :prop :value |}
- VERSION declaration
- Language direction: @en--ltr
- New built-in functions: TRIPLE, SUBJECT, PREDICATE, OBJECT, ISTRIPLE,
LANGDIR, HASLANG, HASLANGDIR, STRLANGDIR
- Codepoint escapes in strings
All 212 W3C SPARQL 1.2 tests pass.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add test runners for SPARQL 1.0 and 1.1 W3C test suites
- Create shared test runner module to reduce code duplication
- Fix grammar to support keywords with digits (MD5, SHA1, etc.)
- Add property path quantifiers {n}, {n,}, {n,m}, {,m}
- Add unicode escape support (\u, \U) in IRIs
All three test suites now pass with 0 failures:
- SPARQL 1.0: 464 passed
- SPARQL 1.1: 551 passed
- SPARQL 1.2: 214 passed
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Summary
Test plan
npm test- 7 unit tests passnpm run test:w3c- 212 W3C SPARQL 1.2 tests passnpm run build🤖 Generated with Claude Code