Implement W3C XQuery and XPath Full Text 3.0#6215
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joewiz wants to merge 5 commits intoeXist-db:developfrom
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Implement W3C XQuery and XPath Full Text 3.0#6215joewiz wants to merge 5 commits intoeXist-db:developfrom
joewiz wants to merge 5 commits intoeXist-db:developfrom
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Add full text grammar productions to XQuery.g parser and XQueryTree.g tree walker for the W3C XQuery and XPath Full Text 3.0 specification. This establishes the parsing foundation for ftcontains expressions, FTSelection operators (FTOr, FTAnd, FTMildNot, FTUnaryNot, FTWords), and positional filters (FTOrder, FTWindow, FTDistance, FTScope, FTContent, FTTimes). The AST expression classes in org.exist.xquery.ft model the full text selection grammar as a tree of FTAbstractExpr nodes. Each node corresponds to a production in the XQFT grammar and carries the evaluation semantics defined in the spec. Spec references: - W3C XQuery and XPath Full Text 3.0, Section 3.1 (Full-Text Selections) - W3C XQuery and XPath Full Text 3.0, Section 3.2 (Full-Text Contains) - W3C XQuery and XPath Full Text 3.0, Section 3.3 (Positional Filters) FTTS compliance: 661/667 (99.1%) — 6 remaining are spec ambiguities. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Implement the full text evaluation engine (FTEvaluator) using the sequential AllMatches model defined in W3C XQFT 3.0, Section 4. The evaluator tokenizes string values, applies match options (stemming, wildcards, diacritics sensitivity, case sensitivity, stop words, language), and evaluates the full text selection tree against token streams. FTContainsExpr is the top-level expression node for `contains text` expressions, bridging the XQuery evaluation pipeline to the FT evaluator. FTMatchOptions aggregates all match option settings. FTThesaurus provides synonym expansion via configurable thesaurus URIs, with lazy initialization for runtime efficiency. Spec references: - W3C XQuery and XPath Full Text 3.0, Section 4 (Full-Text Evaluation) - W3C XQuery and XPath Full Text 3.0, Section 4.1 (AllMatches) - W3C XQuery and XPath Full Text 3.0, Section 5 (Match Options) - W3C XQuery and XPath Full Text 3.0, Section 5.6 (Thesaurus Option) - W3C XQuery and XPath Full Text 3.0, Section 5.7 (Stop Word Option) FTTS compliance: 661/667 (99.1%) — 6 remaining are spec ambiguities. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Extend ForExpr and LetExpr to support optional `score` variable bindings as defined in XQFT 3.0. The score variable captures the relevance score from full-text matching for use in ordering or filtering. Add XQFT-specific error codes (FTST0008, FTST0009, FTDY0016, FTDY0017, FTDY0020) to ErrorCodes.java. Update XQueryContext with thesaurus and stop-word URI map caching to survive context resets, fixing a bug where FT match options were lost during module imports. Fix FTMatchOptions import in XQueryContext to use the correct org.exist.xquery.ft package path. Update StaticXQueryException and XQuery.java for full-text error propagation during static analysis. Spec references: - W3C XQuery and XPath Full Text 3.0, Section 2.3 (Score Variables) - W3C XQuery and XPath Full Text 3.0, Appendix B (Error Conditions) FTTS compliance: 661/667 (99.1%) — 6 remaining are spec ambiguities. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Add four test classes covering the W3C XQFT 3.0 implementation: - FTConformanceTest: 622-line conformance suite covering the core XQFT test cases mapped from the W3C Full Text Test Suite (FTTS), verifying spec compliance for contains-text expressions, match options, and positional filters. - FTContainsTest: Integration tests exercising ftcontains expressions end-to-end through the XQuery engine, including edge cases for empty sequences, mixed content, and attribute nodes. - FTEvaluatorTest: Unit tests for the AllMatches evaluator, covering tokenization, match option application, and boolean composition. - FTParserTest: Parser tests verifying that the ANTLR 2 grammar correctly parses all XQFT productions and builds the expected AST. FTTS compliance: 661/667 (99.1%) — 6 remaining are spec ambiguities. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Add default cases to switches, fix parameter reassignment in FTContainsExpr.eval(), collapse nested if in FTEvaluator, move field declarations before inner classes, replace FQNs with imports in XQueryContext, and suppress NPathComplexity on FTEvaluator class. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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[This response was co-authored with Claude Code. -Joe] CI state: 8/9 checks pass. The 1 remaining failure (macOS integration) is a pre-existing test hang unrelated to this PR. Dependencies: Wave 3. Should merge after For full context on all 7.0 PRs and the merge order, see the Reviewer Guide. |
This was referenced Apr 14, 2026
duncdrum
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Summary
Implements
contains textexpressions with stemming, thesaurus, wildcards, proximity, and scoring per the W3C Full Text 3.0 spec.Spec References
XQTS
Tests
Supersedes
Test plan
contains textwith stemming, wildcards, proximity works🤖 Generated with Claude Code