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196 lines
11 KiB
VimL
196 lines
11 KiB
VimL
if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'nix') == -1
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" Vim syntax file
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" Language: Nix
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" Maintainer: Daiderd Jordan <daiderd@gmail.com>
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" URL: https://github.com/LnL7/vim-nix
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if exists("b:current_syntax")
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finish
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endif
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syn keyword nixBoolean true false
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syn keyword nixNull null
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syn keyword nixRecKeyword rec
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syn keyword nixOperator or
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syn match nixOperator '!=\|!'
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syn match nixOperator '<=\?'
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syn match nixOperator '>=\?'
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syn match nixOperator '&&'
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syn match nixOperator '//\='
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syn match nixOperator '=='
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syn match nixOperator '?'
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syn match nixOperator '||'
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syn match nixOperator '++\='
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syn match nixOperator '-'
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syn match nixOperator '\*'
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syn match nixOperator '->'
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syn match nixParen '[()]'
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syn match nixInteger '\d\+'
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syn keyword nixTodo FIXME NOTE TODO OPTIMIZE XXX HACK contained
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syn match nixComment '#.*' contains=nixTodo,@Spell
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syn region nixComment start=+/\*+ end=+\*/+ contains=nixTodo,@Spell
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syn region nixInterpolation matchgroup=nixInterpolationDelimiter start="\${" end="}" contained contains=@nixExpr,nixInterpolationParam
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syn match nixSimpleStringSpecial /\\./ contained
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syn match nixStringSpecial /''['$]/ contained
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syn match nixStringSpecial /''\\./ contained
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syn region nixSimpleString matchgroup=nixStringDelimiter start=+"+ skip=+\\"+ end=+"+ contains=nixInterpolation,nixSimpleStringSpecial
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syn region nixString matchgroup=nixStringDelimiter start=+''+ skip=+''['$\\]+ end=+''+ contains=nixInterpolation,nixStringSpecial
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syn match nixFunctionCall "[a-zA-Z_][a-zA-Z0-9_'-]*"
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syn match nixPath "[a-zA-Z0-9._+-]*\%(/[a-zA-Z0-9._+-]\+\)\+"
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syn match nixHomePath "\~\%(/[a-zA-Z0-9._+-]\+\)\+"
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syn match nixSearchPath "[a-zA-Z0-9._+-]\+\%(\/[a-zA-Z0-9._+-]\+\)*" contained
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syn match nixPathDelimiter "[<>]" contained
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syn match nixSearchPathRef "<[a-zA-Z0-9._+-]\+\%(\/[a-zA-Z0-9._+-]\+\)*>" contains=nixSearchPath,nixPathDelimiter
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syn match nixURI "[a-zA-Z][a-zA-Z0-9.+-]*:[a-zA-Z0-9%/?:@&=$,_.!~*'+-]\+"
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syn match nixAttributeDot "\." contained
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syn match nixAttribute "[a-zA-Z_][a-zA-Z0-9_'-]*\ze\%([^a-zA-Z0-9_'-.]\|$\)" contained
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syn region nixAttributeAssignment start="=" end="\ze;" contained contains=@nixExpr
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syn region nixAttributeDefinition start=/\ze[a-zA-Z_"$]/ end=";" contained contains=nixComment,nixAttribute,nixInterpolation,nixSimpleString,nixAttributeDot,nixAttributeAssignment
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syn region nixInheritAttributeScope start="(" end=")" contained contains=nixComment,nixAttributeDot
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syn region nixAttributeDefinition matchgroup=nixInherit start="\<inherit\>" end=";" contained contains=nixComment,nixInheritAttributeScope,nixAttribute
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syn region nixAttributeSet start="{" end="}" contains=nixComment,nixAttributeDefinition
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" vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
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syn region nixArgumentDefinitionWithDefault matchgroup=nixArgumentDefinition start="[a-zA-Z_][a-zA-Z0-9_'-]*\ze\%(\s\|#.\{-\}\n\|\n\|/\*\_.\{-\}\*/\)*?\@=" matchgroup=NONE end="[,}]\@=" transparent contained contains=@nixExpr
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" vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
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syn match nixArgumentDefinition "[a-zA-Z_][a-zA-Z0-9_'-]*\ze\%(\s\|#.\{-\}\n\|\n\|/\*\_.\{-\}\*/\)*[,}]\@=" contained
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syn match nixArgumentEllipsis "\.\.\." contained
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syn match nixArgumentSeparator "," contained
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" vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
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syn match nixArgOperator '@\%(\s\|#.\{-\}\n\|\n\|/\*\_.\{-\}\*/\)*[a-zA-Z_][a-zA-Z0-9_'-]*\%(\s\|#.\{-\}\n\|\n\|/\*\_.\{-\}\*/\)*:'he=s+1 contained contains=nixAttribute
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" vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
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syn match nixArgOperator '[a-zA-Z_][a-zA-Z0-9_'-]*\%(\s\|#.\{-\}\n\|\n\|/\*\_.\{-\}\*/\)*@'hs=e-1 contains=nixAttribute nextgroup=nixFunctionArgument
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" This is a bit more complicated, because function arguments can be passed in a
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" very similar form on how attribute sets are defined and two regions with the
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" same start patterns will shadow each other. Instead of a region we could use a
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" match on {\_.\{-\}}, which unfortunately doesn't take nesting into account.
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"
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" So what we do instead is that we look forward until we are sure that it's a
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" function argument. Unfortunately, we need to catch comments and both vertical
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" and horizontal white space, which the following regex should hopefully do:
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"
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" "\%(\s\|#.\{-\}\n\|\n\|/\*\_.\{-\}\*/\)*"
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"
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" It is also used throught the whole file and is marked with 'v's as well.
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"
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" Fortunately the matching rules for function arguments are much simpler than
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" for real attribute sets, because we can stop when we hit the first ellipsis or
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" default value operator, but we also need to paste the "whitespace & comments
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" eating" regex all over the place (marked with 'v's):
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"
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" Region match 1: { foo ? ... } or { foo, ... } or { ... } (ellipsis)
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" vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv {----- identifier -----}vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
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syn region nixFunctionArgument start="{\ze\%(\s\|#.\{-\}\n\|\n\|/\*\_.\{-\}\*/\)*\%([a-zA-Z_][a-zA-Z0-9_'-]*\%(\s\|#.\{-\}\n\|\n\|/\*\_.\{-\}\*/\)*[,?}]\|\.\.\.\)" end="}" contains=nixComment,nixArgumentDefinitionWithDefault,nixArgumentDefinition,nixArgumentEllipsis,nixArgumentSeparator nextgroup=nixArgOperator
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" Now it gets more tricky, because we need to look forward for the colon, but
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" there could be something like "{}@foo:", even though it's highly unlikely.
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"
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" Region match 2: {}
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" vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv@vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv{----- identifier -----} vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
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syn region nixFunctionArgument start="{\ze\%(\s\|#.\{-\}\n\|\n\|/\*\_.\{-\}\*/\)*}\%(\%(\s\|#.\{-\}\n\|\n\|/\*\_.\{-\}\*/\)*@\%(\s\|#.\{-\}\n\|\n\|/\*\_.\{-\}\*/\)*[a-zA-Z_][a-zA-Z0-9_'-]*\)\%(\s\|#.\{-\}\n\|\n\|/\*\_.\{-\}\*/\)*:" end="}" contains=nixComment nextgroup=nixArgOperator
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" vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
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syn match nixSimpleFunctionArgument "[a-zA-Z_][a-zA-Z0-9_'-]*\ze\%(\s\|#.\{-\}\n\|\n\|/\*\_.\{-\}\*/\)*:/\@!"
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syn region nixList matchgroup=nixListBracket start="\[" end="\]" contains=@nixExpr
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syn region nixLetExpr matchgroup=nixLetExprKeyword start="\<let\>" end="\<in\>" contains=nixComment,nixAttributeDefinition
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syn keyword nixIfExprKeyword then contained
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syn region nixIfExpr matchgroup=nixIfExprKeyword start="\<if\>" end="\<else\>" contains=@nixExpr,nixIfExprKeyword
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syn region nixWithExpr matchgroup=nixWithExprKeyword start="\<with\>" matchgroup=NONE end=";" contains=@nixExpr
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syn region nixAssertExpr matchgroup=nixAssertKeyword start="\<assert\>" matchgroup=NONE end=";" contains=@nixExpr
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syn cluster nixExpr contains=nixBoolean,nixNull,nixOperator,nixParen,nixInteger,nixRecKeyword,nixConditional,nixBuiltin,nixSimpleBuiltin,nixComment,nixFunctionCall,nixFunctionArgument,nixSimpleFunctionArgument,nixPath,nixHomePath,nixSearchPathRef,nixURI,nixAttributeSet,nixList,nixSimpleString,nixString,nixLetExpr,nixIfExpr,nixWithExpr,nixAssertExpr,nixInterpolation
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" These definitions override @nixExpr and have to come afterwards:
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syn match nixInterpolationParam "[a-zA-Z_][a-zA-Z0-9_'-]*\%(\.[a-zA-Z_][a-zA-Z0-9_'-]*\)*" contained
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" Non-namespaced Nix builtins as of version 2.0:
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syn keyword nixSimpleBuiltin
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\ abort baseNameOf derivation derivationStrict dirOf fetchGit
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\ fetchMercurial fetchTarball import isNull map placeholder removeAttrs
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\ scopedImport throw toString
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" Namespaced and non-namespaced Nix builtins as of version 2.0:
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syn keyword nixNamespacedBuiltin contained
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\ abort add addErrorContext all any attrNames attrValues baseNameOf
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\ catAttrs compareVersions concatLists concatStringsSep currentSystem
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\ currentTime deepSeq derivation derivationStrict dirOf div elem elemAt
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\ fetchGit fetchMercurial fetchTarball fetchurl filter \ filterSource
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\ findFile foldl' fromJSON functionArgs genList \ genericClosure getAttr
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\ getEnv hasAttr hasContext hashString head import intersectAttrs isAttrs
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\ isBool isFloat isFunction isInt isList isNull isString langVersion
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\ length lessThan listToAttrs map match mul nixPath nixVersion
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\ parseDrvName partition path pathExists placeholder readDir readFile
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\ removeAttrs replaceStrings scopedImport seq sort split splitVersion
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\ storeDir storePath stringLength sub substring tail throw toFile toJSON
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\ toPath toString toXML trace tryEval typeOf unsafeDiscardOutputDependency
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\ unsafeDiscardStringContext unsafeGetAttrPos valueSize
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syn match nixBuiltin "builtins\.[a-zA-Z']\+"he=s+9 contains=nixComment,nixNamespacedBuiltin
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hi def link nixArgOperator Operator
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hi def link nixArgumentDefinition Identifier
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hi def link nixArgumentEllipsis Operator
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hi def link nixAssertKeyword Keyword
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hi def link nixAttribute Identifier
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hi def link nixAttributeDot Operator
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hi def link nixBoolean Boolean
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hi def link nixBuiltin Special
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hi def link nixComment Comment
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hi def link nixConditional Conditional
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hi def link nixHomePath Include
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hi def link nixIfExprKeyword Keyword
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hi def link nixInherit Keyword
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hi def link nixInteger Integer
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hi def link nixInterpolation Macro
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hi def link nixInterpolationDelimiter Delimiter
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hi def link nixInterpolationParam Macro
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hi def link nixLetExprKeyword Keyword
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hi def link nixNamespacedBuiltin Special
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hi def link nixNull Constant
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hi def link nixOperator Operator
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hi def link nixPath Include
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hi def link nixPathDelimiter Delimiter
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hi def link nixRecKeyword Keyword
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hi def link nixSearchPath Include
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hi def link nixSimpleBuiltin Keyword
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hi def link nixSimpleFunctionArgument Identifier
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hi def link nixSimpleString String
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hi def link nixSimpleStringSpecial SpecialChar
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hi def link nixString String
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hi def link nixStringDelimiter Delimiter
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hi def link nixStringSpecial Special
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hi def link nixTodo Todo
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hi def link nixURI Include
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hi def link nixWithExprKeyword Keyword
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" This could lead up to slow syntax highlighting for large files, but usually
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" large files such as all-packages.nix are one large attribute set, so if we'd
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" use sync patterns we'd have to go back to the start of the file anyway
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syn sync fromstart
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let b:current_syntax = "nix"
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endif
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