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Vim: highlight invalid characters in char literals.

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Chris Morgan 2014-06-18 19:58:04 +10:00 committed by Alex Crichton
parent 31dfcf9dc1
commit b0dff7a191
1 changed files with 7 additions and 2 deletions
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9
src/etc/vim/syntax/rust.vim
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@ -179,8 +179,11 @@ syn region rustGenericLifetimeCandidate display start=/\%(<\|,\s*\)\@<='/ end=/[
"rustLifetime must appear before rustCharacter, or chars will get the lifetime highlighting
syn match rustLifetime display "\'\%([^[:cntrl:][:space:][:punct:][:digit:]]\|_\)\%([^[:cntrl:][:punct:][:space:]]\|_\)*"
syn match rustCharacter /b'\([^'\\]\|\\\(.\|x\x\{2}\)\)'/ contains=rustEscape,rustEscapeError
syn match rustCharacter /'\([^'\\]\|\\\(.\|x\x\{2}\|u\x\{4}\|U\x\{8}\)\)'/ contains=rustEscape,rustEscapeUnicode,rustEscapeError
syn match rustCharacterInvalid display contained /b\?'\zs[\n\r\t']\ze'/
" The groups negated here add up to 0-255 but nothing else (they do not seem to go beyond ASCII).
syn match rustCharacterInvalidUnicode display contained /b'\zs[^[:cntrl:][:graph:][:alnum:][:space:]]\ze'/
syn match rustCharacter /b'\([^\\]\|\\\(.\|x\x\{2}\)\)'/ contains=rustEscape,rustEscapeError,rustCharacterInvalid,rustCharacterInvalidUnicode
syn match rustCharacter /'\([^\\]\|\\\(.\|x\x\{2}\|u\x\{4}\|U\x\{8}\)\)'/ contains=rustEscape,rustEscapeUnicode,rustEscapeError,rustCharacterInvalid
syn region rustCommentLine start="//" end="$" contains=rustTodo,@Spell
syn region rustCommentLineDoc start="//\%(//\@!\|!\)" end="$" contains=rustTodo,@Spell
@ -223,6 +226,8 @@ hi def link rustEscapeUnicode rustEscape
hi def link rustEscapeError Error
hi def link rustStringContinuation Special
hi def link rustString String
hi def link rustCharacterInvalid Error
hi def link rustCharacterInvalidUnicode rustCharacterInvalid
hi def link rustCharacter Character
hi def link rustNumber Number
hi def link rustBoolean Boolean