Add negative lookahead#2172

Merged

traviscross merged 12 commits intorust-lang:masterfrom

ehuss:negative-lookahead

Feb 18, 2026

Commits on Feb 18, 2026

Add negative lookahead to the grammar

ehuss
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traviscross
committed
Add Unicode to character range

ehuss
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traviscross
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Use negative lookahead in the grammar

ehuss
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traviscross
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Fix LINE_COMMENT grammar

ehuss
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traviscross
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Fix BLOCK_COMMENT order

ehuss
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traviscross
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Fix handling of carriage returns in doc comments

ehuss
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traviscross
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Add a new COMMENT grammar rule

ehuss
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traviscross
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Fix desugaring of doc comments

ehuss
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traviscross
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Add cut to `FLOAT_EXPONENT` and remove reserved alt

traviscross
and
ehuss
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Fix preposition in `CharacterRange` description
traviscross
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Fix U+xxxx notation description
traviscross
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Add tests for negative lookahead and Unicode
traviscross
committed