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[Lexer] Allow UCN for dollar symbol '\u0024' in identifiers when using -fdollars-in-identifiers flag.

Authored by s.egerton on Dec 20 2019, 6:02 AM.



Previously, the -fdollars-in-identifiers flag allows the '$' symbol to be used
in an identifier but the universal character name equivalent '\u0024' is not
This patch changes this, so that \u0024 is valid in identifiers.

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s.egerton created this revision.Dec 20 2019, 6:02 AM
Herald added a project: Restricted Project. · View Herald TranscriptDec 20 2019, 6:02 AM

This seems reasonable to me, and matches GCC 10's behavior; $ is not in the basic source character set, so encoding it with a UCN should be permitted.

rsmith accepted this revision.Dec 20 2019, 1:43 PM
This revision is now accepted and ready to land.Dec 20 2019, 1:43 PM
This revision was automatically updated to reflect the committed changes.