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Diffstat (limited to 'runtime/syntax/nix.vim')
| -rw-r--r-- | runtime/syntax/nix.vim | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/runtime/syntax/nix.vim b/runtime/syntax/nix.vim new file mode 100644 index 0000000..c07676a --- /dev/null +++ b/runtime/syntax/nix.vim @@ -0,0 +1,210 @@ +" Vim syntax file +" Language: Nix +" Maintainer: James Fleming <james@electronic-quill.net> +" Original Author: Daiderd Jordan <daiderd@gmail.com> +" Acknowledgement: Based on vim-nix maintained by Daiderd Jordan <daiderd@gmail.com> +" https://github.com/LnL7/vim-nix +" License: MIT +" Last Change: 2022 Dec 06 + +if exists("b:current_syntax") + finish +endif + +let s:cpo_save = &cpo +set cpo&vim + +syn keyword nixBoolean true false +syn keyword nixNull null +syn keyword nixRecKeyword rec + +syn keyword nixOperator or +syn match nixOperator '!=\|!' +syn match nixOperator '<=\?' +syn match nixOperator '>=\?' +syn match nixOperator '&&' +syn match nixOperator '//\=' +syn match nixOperator '==' +syn match nixOperator '?' +syn match nixOperator '||' +syn match nixOperator '++\=' +syn match nixOperator '-' +syn match nixOperator '\*' +syn match nixOperator '->' + +syn match nixParen '[()]' +syn match nixInteger '\d\+' + +syn keyword nixTodo FIXME NOTE TODO OPTIMIZE XXX HACK contained +syn match nixComment '#.*' contains=nixTodo,@Spell +syn region nixComment start=+/\*+ end=+\*/+ contains=nixTodo,@Spell + +syn region nixInterpolation matchgroup=nixInterpolationDelimiter start="\${" end="}" contained contains=@nixExpr,nixInterpolationParam + +syn match nixSimpleStringSpecial /\\\%([nrt"\\$]\|$\)/ contained +syn match nixStringSpecial /''['$]/ contained +syn match nixStringSpecial /\$\$/ contained +syn match nixStringSpecial /''\\[nrt]/ contained + +syn match nixSimpleStringSpecial /\$\$/ contained + +syn match nixInvalidSimpleStringEscape /\\[^nrt"\\$]/ contained +syn match nixInvalidStringEscape /''\\[^nrt]/ contained + +syn region nixSimpleString matchgroup=nixStringDelimiter start=+"+ skip=+\\"+ end=+"+ contains=nixInterpolation,nixSimpleStringSpecial,nixInvalidSimpleStringEscape +syn region nixString matchgroup=nixStringDelimiter start=+''+ skip=+''['$\\]+ end=+''+ contains=nixInterpolation,nixStringSpecial,nixInvalidStringEscape + +syn match nixFunctionCall "[a-zA-Z_][a-zA-Z0-9_'-]*" + +syn match nixPath "[a-zA-Z0-9._+-]*\%(/[a-zA-Z0-9._+-]\+\)\+" +syn match nixHomePath "\~\%(/[a-zA-Z0-9._+-]\+\)\+" +syn match nixSearchPath "[a-zA-Z0-9._+-]\+\%(\/[a-zA-Z0-9._+-]\+\)*" contained +syn match nixPathDelimiter "[<>]" contained +syn match nixSearchPathRef "<[a-zA-Z0-9._+-]\+\%(\/[a-zA-Z0-9._+-]\+\)*>" contains=nixSearchPath,nixPathDelimiter +syn match nixURI "[a-zA-Z][a-zA-Z0-9.+-]*:[a-zA-Z0-9%/?:@&=$,_.!~*'+-]\+" + +syn match nixAttributeDot "\." contained +syn match nixAttribute "[a-zA-Z_][a-zA-Z0-9_'-]*\ze\%([^a-zA-Z0-9_'.-]\|$\)" contained +syn region nixAttributeAssignment start="=" end="\ze;" contained contains=@nixExpr +syn region nixAttributeDefinition start=/\ze[a-zA-Z_"$]/ end=";" contained contains=nixComment,nixAttribute,nixInterpolation,nixSimpleString,nixAttributeDot,nixAttributeAssignment + +syn region nixInheritAttributeScope start="(" end="\ze)" contained contains=@nixExpr +syn region nixAttributeDefinition matchgroup=nixInherit start="\<inherit\>" end=";" contained contains=nixComment,nixInheritAttributeScope,nixAttribute + +syn region nixAttributeSet start="{" end="}" contains=nixComment,nixAttributeDefinition + +" vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv +syn region nixArgumentDefinitionWithDefault matchgroup=nixArgumentDefinition start="[a-zA-Z_][a-zA-Z0-9_'-]*\ze\%(\s\|#.\{-\}\n\|\n\|/\*\_.\{-\}\*/\)*?\@=" matchgroup=NONE end="[,}]\@=" transparent contained contains=@nixExpr +" vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv +syn match nixArgumentDefinition "[a-zA-Z_][a-zA-Z0-9_'-]*\ze\%(\s\|#.\{-\}\n\|\n\|/\*\_.\{-\}\*/\)*[,}]\@=" contained +syn match nixArgumentEllipsis "\.\.\." contained +syn match nixArgumentSeparator "," contained + +" vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv +syn match nixArgOperator '@\%(\s\|#.\{-\}\n\|\n\|/\*\_.\{-\}\*/\)*[a-zA-Z_][a-zA-Z0-9_'-]*\%(\s\|#.\{-\}\n\|\n\|/\*\_.\{-\}\*/\)*:'he=s+1 contained contains=nixAttribute + +" vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv +syn match nixArgOperator '[a-zA-Z_][a-zA-Z0-9_'-]*\%(\s\|#.\{-\}\n\|\n\|/\*\_.\{-\}\*/\)*@'hs=e-1 contains=nixAttribute nextgroup=nixFunctionArgument + +" This is a bit more complicated, because function arguments can be passed in a +" very similar form on how attribute sets are defined and two regions with the +" same start patterns will shadow each other. Instead of a region we could use a +" match on {\_.\{-\}}, which unfortunately doesn't take nesting into account. +" +" So what we do instead is that we look forward until we are sure that it's a +" function argument. Unfortunately, we need to catch comments and both vertical +" and horizontal white space, which the following regex should hopefully do: +" +" "\%(\s\|#.\{-\}\n\|\n\|/\*\_.\{-\}\*/\)*" +" +" It is also used throught the whole file and is marked with 'v's as well. +" +" Fortunately the matching rules for function arguments are much simpler than +" for real attribute sets, because we can stop when we hit the first ellipsis or +" default value operator, but we also need to paste the "whitespace & comments +" eating" regex all over the place (marked with 'v's): +" +" Region match 1: { foo ? ... } or { foo, ... } or { ... } (ellipsis) +" vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv {----- identifier -----}vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv +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 + +" Now it gets more tricky, because we need to look forward for the colon, but +" there could be something like "{}@foo:", even though it's highly unlikely. +" +" Region match 2: {} +" vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv@vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv{----- identifier -----} vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv +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 + +" vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv +syn match nixSimpleFunctionArgument "[a-zA-Z_][a-zA-Z0-9_'-]*\ze\%(\s\|#.\{-\}\n\|\n\|/\*\_.\{-\}\*/\)*:\([\n ]\)\@=" + +syn region nixList matchgroup=nixListBracket start="\[" end="\]" contains=@nixExpr + +syn region nixLetExpr matchgroup=nixLetExprKeyword start="\<let\>" end="\<in\>" contains=nixComment,nixAttributeDefinition + +syn keyword nixIfExprKeyword then contained +syn region nixIfExpr matchgroup=nixIfExprKeyword start="\<if\>" end="\<else\>" contains=@nixExpr,nixIfExprKeyword + +syn region nixWithExpr matchgroup=nixWithExprKeyword start="\<with\>" matchgroup=NONE end=";" contains=@nixExpr + +syn region nixAssertExpr matchgroup=nixAssertKeyword start="\<assert\>" matchgroup=NONE end=";" contains=@nixExpr + +syn cluster nixExpr contains=nixBoolean,nixNull,nixOperator,nixParen,nixInteger,nixRecKeyword,nixConditional,nixBuiltin,nixSimpleBuiltin,nixComment,nixFunctionCall,nixFunctionArgument,nixArgOperator,nixSimpleFunctionArgument,nixPath,nixHomePath,nixSearchPathRef,nixURI,nixAttributeSet,nixList,nixSimpleString,nixString,nixLetExpr,nixIfExpr,nixWithExpr,nixAssertExpr,nixInterpolation + +" These definitions override @nixExpr and have to come afterwards: + +syn match nixInterpolationParam "[a-zA-Z_][a-zA-Z0-9_'-]*\%(\.[a-zA-Z_][a-zA-Z0-9_'-]*\)*" contained + +" Non-namespaced Nix builtins as of version 2.0: +syn keyword nixSimpleBuiltin + \ abort baseNameOf derivation derivationStrict dirOf fetchGit + \ fetchMercurial fetchTarball import isNull map mapAttrs placeholder removeAttrs + \ scopedImport throw toString + + +" Namespaced and non-namespaced Nix builtins as of version 2.0: +syn keyword nixNamespacedBuiltin contained + \ abort add addErrorContext all any attrNames attrValues baseNameOf + \ catAttrs compareVersions concatLists concatStringsSep currentSystem + \ currentTime deepSeq derivation derivationStrict dirOf div elem elemAt + \ fetchGit fetchMercurial fetchTarball fetchurl filter \ filterSource + \ findFile foldl' fromJSON functionArgs genList \ genericClosure getAttr + \ getEnv hasAttr hasContext hashString head import intersectAttrs isAttrs + \ isBool isFloat isFunction isInt isList isNull isString langVersion + \ length lessThan listToAttrs map mapAttrs match mul nixPath nixVersion + \ parseDrvName partition path pathExists placeholder readDir readFile + \ removeAttrs replaceStrings scopedImport seq sort split splitVersion + \ storeDir storePath stringLength sub substring tail throw toFile toJSON + \ toPath toString toXML trace tryEval typeOf unsafeDiscardOutputDependency + \ unsafeDiscardStringContext unsafeGetAttrPos valueSize fromTOML bitAnd + \ bitOr bitXor floor ceil + +syn match nixBuiltin "builtins\.[a-zA-Z']\+"he=s+9 contains=nixComment,nixNamespacedBuiltin + +hi def link nixArgOperator Operator +hi def link nixArgumentDefinition Identifier +hi def link nixArgumentEllipsis Operator +hi def link nixAssertKeyword Keyword +hi def link nixAttribute Identifier +hi def link nixAttributeDot Operator +hi def link nixBoolean Boolean +hi def link nixBuiltin Special +hi def link nixComment Comment +hi def link nixConditional Conditional +hi def link nixHomePath Include +hi def link nixIfExprKeyword Keyword +hi def link nixInherit Keyword +hi def link nixInteger Integer +hi def link nixInterpolation Macro +hi def link nixInterpolationDelimiter Delimiter +hi def link nixInterpolationParam Macro +hi def link nixInvalidSimpleStringEscape Error +hi def link nixInvalidStringEscape Error +hi def link nixLetExprKeyword Keyword +hi def link nixNamespacedBuiltin Special +hi def link nixNull Constant +hi def link nixOperator Operator +hi def link nixPath Include +hi def link nixPathDelimiter Delimiter +hi def link nixRecKeyword Keyword +hi def link nixSearchPath Include +hi def link nixSimpleBuiltin Keyword +hi def link nixSimpleFunctionArgument Identifier +hi def link nixSimpleString String +hi def link nixSimpleStringSpecial SpecialChar +hi def link nixString String +hi def link nixStringDelimiter Delimiter +hi def link nixStringSpecial Special +hi def link nixTodo Todo +hi def link nixURI Include +hi def link nixWithExprKeyword Keyword + +" This could lead up to slow syntax highlighting for large files, but usually +" large files such as all-packages.nix are one large attribute set, so if we'd +" use sync patterns we'd have to go back to the start of the file anyway +syn sync fromstart + +let b:current_syntax = "nix" + +let &cpo = s:cpo_save +unlet s:cpo_save |