Release 3.3.2

This version adds more support of query optimization, which is necessary for running some queries involving property paths.

RDF 1.2

• RDF 1.2 LL(1) Parser
  • Preserve 1.1 version of parser, using use11 option. Update script for use11 and profile options.
• RDF 1.2 PEG Parser
  • Unescape codepoints in input rather than on terminals.
  • Fix problems with using the 1.1 parser in script/tc.

Testing

• Update test locations.
• Automatically skip missing test manifests.
• Test SEP-0004 even though it's not implemented.
• Test on Ruby 3.4.
• Use Rackup::Server instead of the defunct Rack::Server. Still no good testing strategy. (Fixes #51.)
• Update dependencies.
  • Depend on sinatra ~> 4.0 rather than 3.1.

Other

• Use optimize option in SPARQL.parse and SPARQL::Algebra.parse to run optimizer, if specified.
• Add some path optimmization for reverse and first/rest chains involving path*.
• Work on freezing/detecting frozen bnodes in INSERT DATA.
• Note some problem cases on filters in OPTIONAL.
• Group Concat adds language if all operands have the same language.
• Updates for Rack/Sinatra.
• Add host_authorization option to SPARQL Server application, needed for testing, at least.
• Support 'x' and 'q' flags in regular expressions.