Accept uppercase hexadecimal escapes - #3133
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soutaro
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Sep 7, 2026
soutaro
enabled auto-merge
September 7, 2026 08:00
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Summary: make the lexer source accept uppercase hexadecimal digits in byte escapes, matching the checked-in generated lexer behavior and preventing future regeneration from losing it.
Verification: focused baseline/fixed reproduction, combined RBS 4.2.0 consumer models, and RuboCop (738 files, zero offenses). No tests are added in this PR.
Compatibility: no public API removal or dependency/version change.