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neovim/runtime/doc
zeertzjq 19446ec9cb vim-patch:77099ed: runtime(cpp): add C++26 lexical constructs to syntax highlighting
Add a guarded "C++ 26 extensions" block (cpp_no_cpp26) covering new
lexical surface introduced since C++23:

- [[ ... ]] attributes as a region, so P3394 annotations carrying a
  value expression (eg [[=foo{1}]]) no longer trip cErrInBracket on
  their braces/parens. A \w\@1<! look-behind keeps it from matching a
  subscripted immediately-invoked lambda (arr[[]{...}()]).
- ^^ reflection operator (P2996).
- [: :] splice brackets (P2996).
- contract_assert keyword (P2900).

Add input/cpp_cpp26.cpp exercising these constructs with screendumps,
and update dumps/cpp_noreturn_00.dump for the new [[ ]] attribute
delimiter highlighting.

closes: vim/vim#20577

77099ed6b3

Co-authored-by: Gareth Lloyd <gareth@ignition-web.co.uk>
2026-06-22 09:51:52 +08:00
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