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vim/runtime/syntax/cangjie.vim
Wu Junkai 37c8ce7fac runtime(cangjie): Fixes and improvements for syntax script 
Housekeeping:
- Add GitHub repository link
- Update Last Change date

Style:
- Add Vim modeline for consistent formatting
- Unify indentation style (spaces to tabs)
- Wrap long cluster definitions for readability

New Features:
- Add highlighting for escape sequences
- Add error highlighting for invalid rune literals
- Add syntax-based folding support

Fixes:
- Fix rune matching to allow only a single character/escape
- Fix highlighting for double-quoted rune literals
- Fix highlighting for floats with exponents and type suffixes

Co-authored-by: dkearns <dougkearns@gmail.com>
Signed-off-by: Wu Junkai <wujunkai20041123@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-10-12 14:10:34 +00:00

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" Vim syntax file
" Language: Cangjie
" Maintainer: Wu Junkai <wu.junkai@qq.com>
" URL: https://github.com/WuJunkai2004/cangjie.vim
" Last Change: 2025 Oct 12
"
" The Cangjie programming language is a new-generation programming
" language oriented to full-scenario intelligence. It features
" native intelligence, being naturally suitable for all scenarios,
" high performance and strong security. It is mainly applied in
" scenarios such as native applications and service applications
" of HarmonyOS NEXT, providing developers with a good programming
" experience.
"
" For more information, see:
" - https://cangjie-lang.cn/
" - https://gitcode.com/Cangjie
" quit when a syntax file was already loaded
if exists("b:current_syntax")
finish
endif
let s:save_cpo = &cpo
set cpo&vim
" 0. check the user's settings
" use let g:cangjie_<item>_color to enable/disable syntax highlighting
function! s:enabled(item) abort
return get(g:, 'cangjie_' . a:item . '_color', 1)
endfunction
syn case match
" 1. comments
syn keyword cangjieTodo TODO FIXME XXX NOTE BUG contained
syn match cangjieComment /\v\/\/.*/ contains=cangjieTodo
syn region cangjieComment start=/\/\*/ end=/\*\// contains=cangjieTodo,@Spell
" 2. keywords
syn keyword cangjieDeclaration abstract extend macro foreign
syn keyword cangjieDeclaration interface open operator override private prop protected
syn keyword cangjieDeclaration public redef static type
syn keyword cangjieStatement as break case catch continue do else finally for in
syn keyword cangjieStatement if in is match quote return spawn super synchronized
syn keyword cangjieStatement throw try unsafe where while
syn keyword cangjieIdentlike false init main this true
syn keyword cangjieVariable const let var
syn keyword cangjieOption Option Some None
syn keyword cangjieDeclaration func struct class enum import package nextgroup=cangjieTypeName skipwhite
syn cluster cangjieKeywordCluster contains=
\ cangjieDeclaration,
\ cangjieStatement,
\ cangjieIdentlike,
\ cangjieVariable,
\ cangjieOption
" 3. macro (e.g., @override)
syn match cangjieMacro /@\h\w*/
" 4. Type and Function Names
syn match cangjieTypeName /\h\w*/ contained
" 5. specail identifiers
syn region cangjieSpIdentifier start=/`/ end=/`/ oneline
" 6. types
syn keyword cangjieSpType Any Nothing Range Unit Iterable
syn keyword cangjieArrayType Array ArrayList VArray
syn keyword cangjieHashType HashMap HashSet
syn keyword cangjieCommonType Bool Byte Rune String
syn keyword cangjieFloatType Float16 Float32 Float64
syn keyword cangjieIntType Int8 Int16 Int32 Int64 IntNative
syn keyword cangjieUIntType UInt8 UInt16 UInt32 UInt64 UIntNative
syn cluster cangjieTypeCluster contains=
\ cangjieSpType,
\ cangjieArrayType,
\ cangjieHashType,
\ cangjieCommonType,
\ cangjieFloatType,
\ cangjieIntType,
\ cangjieUIntType
" 7. character and strings
syn cluster cangjieInterpolatedPart contains=
\ @cangjieKeywordCluster,
\ cangjieSpIdentifier,
\ @cangjieTypeCluster,
\ @cangjieNumberCluster,
\ cangjieOperator
syn region cangjieInterpolation contained keepend start=/\${/ end=/}/ contains=@cangjieInterpolatedPart
syn match cangjieEscape /\v\\u\{[0-9a-fA-F]{1,8}\}|\\./ contained
syn match cangjieRuneError /\v[rb]'([^'\\]|\\.)*'/
syn match cangjieRuneError /\v[rb]"([^"\\]|\\.)*"/
syn match cangjieRune /\vr'(\\u\{[0-9a-fA-F]{1,8}\}|\\.|[^'\\])'/ contains=cangjieEscape
syn match cangjieRune /\vr"(\\u\{[0-9a-fA-F]{1,8}\}|\\.|[^"\\])"/ contains=cangjieEscape
syn match cangjieRune /\vb'(\\u\{[0-9a-fA-F]{1,8}\}|\\.|[^'\\])'/ contains=cangjieEscape
syn region cangjieString start=/"/ skip=/\\\\\|\\"/ end=/"/ oneline contains=cangjieInterpolation,cangjieEscape
syn region cangjieString start=/'/ skip=/\\\\\|\\'/ end=/'/ oneline contains=cangjieInterpolation,cangjieEscape
syn region cangjieString start=/"""/ skip=/\\\\\|\\"/ end=/"""/ contains=cangjieInterpolation,cangjieEscape keepend
syn region cangjieString start=/'''/ skip=/\\\\\|\\'/ end=/'''/ contains=cangjieInterpolation,cangjieEscape keepend
syn region cangjieRawString start='\z(#*\)#"' end='"#\z1'
syn region cangjieRawString start='\z(#*\)#\'' end='\'#\z1'
" 8. number
syn match cangjieHexFloatNumber /\v\c<0x([0-9a-f_]+\.?|[0-9a-f_]*\.[0-9a-f_]+)[p][-+]?\d[0-9_]*>/
syn match cangjieFloatNumber /\v\c<\d[0-9_]*\.\d[0-9_]*([ep][-+]?\d[0-9_]*)?(f(16|32|64))?>/
syn match cangjieFloatNumber /\v\c<\d[0-9_]*\.([ep][-+]?\d[0-9_]*)?(f(16|32|64))?>/
syn match cangjieFloatNumber /\v\c\.\d[0-9_]*([ep][-+]?\d[0-9_]*)?(f(16|32|64))?>/
syn match cangjieScienceNumber /\v\c<\d[0-9_]*[e][-+]?\d[0-9_]*(f(16|32|64))?>/
syn match cangjieHexNumber /\v\c<0x[0-9a-f_]+([iu](8|16|32|64))?>/
syn match cangjieOctalNumber /\v\c<0o[0-7_]+([iu](8|16|32|64))?>/
syn match cangjieBinaryNumber /\v\c<0b[01_]+([iu](8|16|32|64))?>/
syn match cangjieDecimalNumber /\v\c<\d[0-9_]*([iu](8|16|32|64))?>/
syn cluster cangjieNumberCluster contains=
\ cangjieHexFloatNumber,
\ cangjieFloatNumber,
\ cangjieScienceNumber,
\ cangjieHexNumber,
\ cangjieOctalNumber,
\ cangjieBinaryNumber,
\ cangjieDecimalNumber
" 9. operators
syn match cangjieOperator /[-+%<>!&|^*=]=\?/
syn match cangjieOperator /\/\%(=\|\ze[^/*]\)/
syn match cangjieOperator /\%(<<\|>>\|&^\)=\?/
syn match cangjieOperator /:=\|||\|<-\|++\|--/
syn match cangjieOperator /[~]/
syn match cangjieOperator /[:]/
syn match cangjieOperator /\.\./
syn match cangjieVarArgs /\.\.\./
" 10. folding
syn region cangjieFoldBraces transparent fold start='{' end='}' contains=ALLBUT,cangjieComment
syn region cangjieFoldParens transparent fold start='(' end=')' contains=ALLBUT,cangjieComment
syn region cangjieFoldBrackets transparent fold start='\[' end='\]' contains=ALLBUT,cangjieComment
" finally, link the syntax groups to the highlight groups
if s:enabled('comment')
hi def link cangjieTodo Todo
hi def link cangjieComment Comment
endif
if s:enabled('identifier')
hi def link cangjieSpIdentifier Identifier
endif
if s:enabled('keyword')
hi def link cangjieDeclaration Keyword
hi def link cangjieStatement Statement
hi def link cangjieIdentlike Keyword
hi def link cangjieVariable Keyword
hi def link cangjieOption Keyword
endif
if s:enabled('macro')
hi def link cangjieMacro PreProc
endif
if s:enabled('number')
hi def link cangjieHexFloatNumber Number
hi def link cangjieFloatNumber Float
hi def link cangjieScienceNumber Float
hi def link cangjieHexNumber Number
hi def link cangjieOctalNumber Number
hi def link cangjieBinaryNumber Number
hi def link cangjieDecimalNumber Number
endif
if s:enabled('operator')
hi def link cangjieOperator Operator
hi def link cangjieVarArgs Operator
endif
if s:enabled('string')
hi def link cangjieRune Character
hi def link cangjieRuneError Error
hi def link cangjieString String
hi def link cangjieRawString String
hi def link cangjieEscape SpecialChar
endif
if s:enabled('type')
hi def link cangjieTypeName Type
hi def link cangjieSpType Type
hi def link cangjieArrayType Type
hi def link cangjieHashType Type
hi def link cangjieCommonType Type
hi def link cangjieFloatType Type
hi def link cangjieIntType Type
hi def link cangjieUIntType Type
endif
let b:current_syntax = "cangjie"
let &cpo = s:save_cpo
unlet s:save_cpo
" vim: ts=8 sw=8 noet
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