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fix: incorrect syntax highlighting of literals (fixes #62) #63

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fix: incorrect syntax highlighting of literals (fixes #62) #63

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19 changes: 9 additions & 10 deletions syntax/cpp.vim
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Original file line number Diff line number Diff line change
Expand Up @@ -55,20 +55,20 @@ if !exists("cpp_no_cpp14")
syn match cppNumber display contained "\<0\([Uu]\=\([Ll]\|LL\|ll\)\|\([Ll]\|LL\|ll\)\=[Uu]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>"
syn match cppNumber display contained "\<[1-9]\('\=\d\+\)*\([Uu]\=\([Ll]\|LL\|ll\)\|\([Ll]\|LL\|ll\)\=[Uu]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>"
syn match cppNumber display contained "\<0\o\+\([Uu]\=\([Ll]\|LL\|ll\)\|\([Ll]\|LL\|ll\)\=[Uu]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>"
syn match cppNumber display contained "\<0b[01]\('\=[01]\+\)*\([Uu]\=\([Ll]\|LL\|ll\)\|\([Ll]\|LL\|ll\)\=[Uu]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>"
syn match cppNumber display contained "\<0x\x\('\=\x\+\)*\([Uu]\=\([Ll]\|LL\|ll\)\|\([Ll]\|LL\|ll\)\=[Uu]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>"
syn match cppFloat display contained "\<\d\+\.\d*\(e[-+]\=\d\+\)\=\([FfLl]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>"
syn match cppFloat display contained "\<\.\d\+\(e[-+]\=\d\+\)\=\([FfLl]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>"
syn match cppFloat display contained "\<\d\+e[-+]\=\d\+\([FfLl]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>"
syn match cppNumber display contained "\<0[bB][01]\('\=[01]\+\)*\([Uu]\=\([Ll]\|LL\|ll\)\|\([Ll]\|LL\|ll\)\=[Uu]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>"
syn match cppNumber display contained "\<0[xX]\x\('\=\x\+\)*\([Uu]\=\([Ll]\|LL\|ll\)\|\([Ll]\|LL\|ll\)\=[Uu]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>"
syn match cppFloat display contained "\<\d\+\.\d*\([eE][-+]\=\d\+\)\=\([FfLl]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>"
syn match cppFloat display contained "\<\.\d\+\([eE][-+]\=\d\+\)\=\([FfLl]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>"
syn match cppFloat display contained "\<\d\+[eE][-+]\=\d\+\([FfLl]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>"
syn region cppString start=+\(L\|u\|u8\|U\)\="+ skip=+\\\\\|\\"\|\\$+ excludenl end=+"\(sv\|s\|_\i*\)\=+ end='$' contains=cSpecial,cFormat,@Spell
endif

" C++ 17 extensions
if !exists("cpp_no_cpp17")
syn match cppCast "\<reinterpret_pointer_cast\s*<"me=e-1
syn match cppCast "\<reinterpret_pointer_cast\s*$"
syn match cppFloat display contained "\<0x\x*\.\x\+p[-+]\=\d\+\([FfLl]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>"
syn match cppFloat display contained "\<0x\x\+\.\=p[-+]\=\d\+\([FfLl]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>"
syn match cppFloat display contained "\<0[xX]\x*\.\x\+p[-+]\=\d\+\([FfLl]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>"
syn match cppFloat display contained "\<0[xX]\x\+\.\=p[-+]\=\d\+\([FfLl]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>"

" TODO: push this up to c.vim if/when supported in C23
syn match cppCharacter "u8'[^\\]'"
Expand All @@ -82,16 +82,15 @@ if !exists("cpp_no_cpp17")
endif
syn match cppSpecialCharacter display "u8'\\\o\{1,3}'"
syn match cppSpecialCharacter display "u8'\\x\x\+'"

endif

" C++ 20 extensions
if !exists("cpp_no_cpp20")
syn match cppNumber display contained "\<0\(y\|d\)\>"
syn match cppNumber display contained "\<[1-9]\('\=\d\+\)*\(y\|d\)\>"
syn match cppNumber display contained "\<0\o\+\(y\|d\)\>"
syn match cppNumber display contained "\<0b[01]\('\=[01]\+\)*\(y\|d\)\>"
syn match cppNumber display contained "\<0x\x\('\=\x\+\)*\(y\|d\)\>"
syn match cppNumber display contained "\<0[bB][01]\('\=[01]\+\)*\(y\|d\)\>"
syn match cppNumber display contained "\<0[xX]\x\('\=\x\+\)*\(y\|d\)\>"
syn keyword cppStatement co_await co_return co_yield requires
syn keyword cppStorageClass consteval constinit
syn keyword cppStructure concept
Expand Down