Implement XQuery 4.0 parser with version gating and feature flag#6216

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joewiz:v2/xquery-4.0-parser

Commits on Apr 13, 2026

[feature] Add XQuery 4.0 syntax to ANTLR 2 grammar

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[feature] Add XQuery 4.0 expression classes

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[feature] Add XQuery 4.0 type infrastructure and expression modifications

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[bugfix] Align XQuery error codes with W3C specification

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[test] Add XQSuite tests for XQuery 4.0 parser features

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[feature] Add version gating and feature flag for XQuery 4.0 syntax

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Commits on Apr 25, 2026

[feature] Align fn: function parameter names with XQuery 4.0 F&O spec

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Commits on Apr 26, 2026

Commits on Apr 27, 2026

Commits on Apr 29, 2026