[all-commits] [llvm/llvm-project] 31f485: [Clang] Allow additional mathematical symbols in i...

[cor3ntin via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 31f4859c3e4d261d4a45118bb77d453138a6f7a9
      https://github.com/llvm/llvm-project/commit/31f4859c3e4d261d4a45118bb77d453138a6f7a9
  Author: Corentin Jabot <corentinjabot at gmail.com>
  Date:   2022-12-16 (Fri, 16 Dec 2022)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/include/clang/Basic/DiagnosticLexKinds.td
    M clang/lib/Lex/Lexer.cpp
    M clang/lib/Lex/UnicodeCharSets.h
    M clang/test/Driver/autocomplete.c
    M clang/test/Lexer/unicode.c

  Log Message:
  -----------
  [Clang] Allow additional mathematical symbols in identifiers.

Implement the proposed UAX Profile
"Mathematical notation profile for default identifiers".

This implements a not-yet approved Unicode for a vetted
UAX31 identifier profile
https://www.unicode.org/L2/L2022/22230-math-profile.pdf

This change mitigates the reported disruption caused
by the implementation of UAX31 in C++ and C2x,
as these mathematical symbols are commonly used in the
scientific community.

Fixes #54732

Reviewed By: tahonermann, #clang-language-wg

Differential Revision: https://reviews.llvm.org/D137051