412 lines
17 KiB
VimL
412 lines
17 KiB
VimL
" Copyright 2009 The Go Authors. All rights reserved.
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" Use of this source code is governed by a BSD-style
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" license that can be found in the LICENSE file.
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"
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" go.vim: Vim syntax file for Go.
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" Quit when a (custom) syntax file was already loaded
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if exists("b:current_syntax")
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finish
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endif
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syn case match
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syn keyword goPackage package
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syn keyword goImport import contained
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syn keyword goVar var contained
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syn keyword goConst const contained
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hi def link goPackage Statement
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hi def link goImport Statement
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hi def link goVar Keyword
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hi def link goConst Keyword
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hi def link goDeclaration Keyword
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" Keywords within functions
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syn keyword goStatement defer go goto return break continue fallthrough
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syn keyword goConditional if else switch select
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syn keyword goLabel case default
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syn keyword goRepeat for range
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hi def link goStatement Statement
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hi def link goConditional Conditional
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hi def link goLabel Label
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hi def link goRepeat Repeat
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" Predefined types
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syn keyword goType chan map bool string error
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syn keyword goSignedInts int int8 int16 int32 int64 rune
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syn keyword goUnsignedInts byte uint uint8 uint16 uint32 uint64 uintptr
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syn keyword goFloats float32 float64
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syn keyword goComplexes complex64 complex128
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hi def link goType Type
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hi def link goSignedInts Type
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hi def link goUnsignedInts Type
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hi def link goFloats Type
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hi def link goComplexes Type
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" Predefined functions and values
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syn keyword goBuiltins append cap close complex copy delete imag len
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syn keyword goBuiltins make new panic print println real recover
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syn keyword goBoolean true false
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syn keyword goPredefinedIdentifiers nil iota
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hi def link goBuiltins Identifier
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hi def link goBoolean Boolean
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hi def link goPredefinedIdentifiers goBoolean
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" Comments; their contents
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syn keyword goTodo contained TODO FIXME XXX BUG
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syn cluster goCommentGroup contains=goTodo
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syn region goComment start="//" end="$" contains=goGenerate,@goCommentGroup,@Spell
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if go#config#FoldEnable('comment')
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syn region goComment start="/\*" end="\*/" contains=@goCommentGroup,@Spell fold
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syn match goComment "\v(^\s*//.*\n)+" contains=goGenerate,@goCommentGroup,@Spell fold
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else
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syn region goComment start="/\*" end="\*/" contains=@goCommentGroup,@Spell
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endif
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hi def link goComment Comment
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hi def link goTodo Todo
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if go#config#HighlightGenerateTags()
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syn match goGenerateVariables contained /\%(\$GOARCH\|\$GOOS\|\$GOFILE\|\$GOLINE\|\$GOPACKAGE\|\$DOLLAR\)\>/
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syn region goGenerate start="^\s*//go:generate" end="$" contains=goGenerateVariables
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hi def link goGenerate PreProc
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hi def link goGenerateVariables Special
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endif
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" Go escapes
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syn match goEscapeOctal display contained "\\[0-7]\{3}"
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syn match goEscapeC display contained +\\[abfnrtv\\'"]+
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syn match goEscapeX display contained "\\x\x\{2}"
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syn match goEscapeU display contained "\\u\x\{4}"
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syn match goEscapeBigU display contained "\\U\x\{8}"
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syn match goEscapeError display contained +\\[^0-7xuUabfnrtv\\'"]+
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hi def link goEscapeOctal goSpecialString
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hi def link goEscapeC goSpecialString
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hi def link goEscapeX goSpecialString
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hi def link goEscapeU goSpecialString
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hi def link goEscapeBigU goSpecialString
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hi def link goSpecialString Special
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hi def link goEscapeError Error
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" Strings and their contents
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syn cluster goStringGroup contains=goEscapeOctal,goEscapeC,goEscapeX,goEscapeU,goEscapeBigU,goEscapeError
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if go#config#HighlightStringSpellcheck()
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syn region goString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=@goStringGroup,@Spell
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syn region goRawString start=+`+ end=+`+ contains=@Spell
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else
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syn region goString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=@goStringGroup
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syn region goRawString start=+`+ end=+`+
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endif
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if go#config#HighlightFormatStrings()
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" [n] notation is valid for specifying explicit argument indexes
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" 1. Match a literal % not preceded by a %.
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" 2. Match any number of -, #, 0, space, or +
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" 3. Match * or [n]* or any number or nothing before a .
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" 4. Match * or [n]* or any number or nothing after a .
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" 5. Match [n] or nothing before a verb
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" 6. Match a formatting verb
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syn match goFormatSpecifier /\
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\%([^%]\%(%%\)*\)\
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\@<=%[-#0 +]*\
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\%(\%(\%(\[\d\+\]\)\=\*\)\|\d\+\)\=\
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\%(\.\%(\%(\%(\[\d\+\]\)\=\*\)\|\d\+\)\=\)\=\
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\%(\[\d\+\]\)\=[vTtbcdoqxXUeEfFgGsp]/ contained containedin=goString,goRawString
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hi def link goFormatSpecifier goSpecialString
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endif
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hi def link goString String
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hi def link goRawString String
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" Characters; their contents
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syn cluster goCharacterGroup contains=goEscapeOctal,goEscapeC,goEscapeX,goEscapeU,goEscapeBigU
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syn region goCharacter start=+'+ skip=+\\\\\|\\'+ end=+'+ contains=@goCharacterGroup
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hi def link goCharacter Character
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" Regions
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syn region goParen start='(' end=')' transparent
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if go#config#FoldEnable('block')
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syn region goBlock start="{" end="}" transparent fold
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else
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syn region goBlock start="{" end="}" transparent
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endif
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" import
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if go#config#FoldEnable('import')
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syn region goImport start='import (' end=')' transparent fold contains=goImport,goString,goComment
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else
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syn region goImport start='import (' end=')' transparent contains=goImport,goString,goComment
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endif
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" var, const
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if go#config#FoldEnable('varconst')
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syn region goVar start='var (' end='^\s*)$' transparent fold
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\ contains=ALLBUT,goParen,goBlock,goFunction,goTypeName,goReceiverType,goReceiverVar,goParamName,goParamType,goSimpleParams,goPointerOperator
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syn region goConst start='const (' end='^\s*)$' transparent fold
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\ contains=ALLBUT,goParen,goBlock,goFunction,goTypeName,goReceiverType,goReceiverVar,goParamName,goParamType,goSimpleParams,goPointerOperator
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else
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syn region goVar start='var (' end='^\s*)$' transparent
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\ contains=ALLBUT,goParen,goBlock,goFunction,goTypeName,goReceiverType,goReceiverVar,goParamName,goParamType,goSimpleParams,goPointerOperator
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syn region goConst start='const (' end='^\s*)$' transparent
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\ contains=ALLBUT,goParen,goBlock,goFunction,goTypeName,goReceiverType,goReceiverVar,goParamName,goParamType,goSimpleParams,goPointerOperator
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endif
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" Single-line var, const, and import.
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syn match goSingleDecl /\%(import\|var\|const\) [^(]\@=/ contains=goImport,goVar,goConst
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" Integers
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syn match goDecimalInt "\<-\=\d\+\%([Ee][-+]\=\d\+\)\=\>"
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syn match goHexadecimalInt "\<-\=0[xX]\x\+\>"
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syn match goOctalInt "\<-\=0\o\+\>"
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syn match goOctalError "\<-\=0\o*[89]\d*\>"
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hi def link goDecimalInt Integer
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hi def link goHexadecimalInt Integer
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hi def link goOctalInt Integer
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hi def link goOctalError Error
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hi def link Integer Number
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" Floating point
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syn match goFloat "\<-\=\d\+\.\d*\%([Ee][-+]\=\d\+\)\=\>"
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syn match goFloat "\<-\=\.\d\+\%([Ee][-+]\=\d\+\)\=\>"
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hi def link goFloat Float
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" Imaginary literals
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syn match goImaginary "\<-\=\d\+i\>"
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syn match goImaginary "\<-\=\d\+[Ee][-+]\=\d\+i\>"
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syn match goImaginaryFloat "\<-\=\d\+\.\d*\%([Ee][-+]\=\d\+\)\=i\>"
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syn match goImaginaryFloat "\<-\=\.\d\+\%([Ee][-+]\=\d\+\)\=i\>"
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hi def link goImaginary Number
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hi def link goImaginaryFloat Float
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" Spaces after "[]"
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if go#config#HighlightArrayWhitespaceError()
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syn match goSpaceError display "\%(\[\]\)\@<=\s\+"
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endif
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" Spacing errors around the 'chan' keyword
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if go#config#HighlightChanWhitespaceError()
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" receive-only annotation on chan type
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"
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" \(\<chan\>\)\@<!<- (only pick arrow when it doesn't come after a chan)
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" this prevents picking up 'chan<- chan<-' but not '<- chan'
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syn match goSpaceError display "\%(\%(\<chan\>\)\@<!<-\)\@<=\s\+\%(\<chan\>\)\@="
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" send-only annotation on chan type
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"
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" \(<-\)\@<!\<chan\> (only pick chan when it doesn't come after an arrow)
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" this prevents picking up '<-chan <-chan' but not 'chan <-'
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syn match goSpaceError display "\%(\%(<-\)\@<!\<chan\>\)\@<=\s\+\%(<-\)\@="
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" value-ignoring receives in a few contexts
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syn match goSpaceError display "\%(\%(^\|[={(,;]\)\s*<-\)\@<=\s\+"
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endif
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" Extra types commonly seen
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if go#config#HighlightExtraTypes()
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syn match goExtraType /\<bytes\.\%(Buffer\)\>/
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syn match goExtraType /\<context\.\%(Context\)\>/
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syn match goExtraType /\<io\.\%(Reader\|ReadSeeker\|ReadWriter\|ReadCloser\|ReadWriteCloser\|Writer\|WriteCloser\|Seeker\)\>/
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syn match goExtraType /\<reflect\.\%(Kind\|Type\|Value\)\>/
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syn match goExtraType /\<unsafe\.Pointer\>/
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endif
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" Space-tab error
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if go#config#HighlightSpaceTabError()
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syn match goSpaceError display " \+\t"me=e-1
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endif
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" Trailing white space error
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if go#config#HighlightTrailingWhitespaceError()
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syn match goSpaceError display excludenl "\s\+$"
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endif
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hi def link goExtraType Type
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hi def link goSpaceError Error
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" included from: https://github.com/athom/more-colorful.vim/blob/master/after/syntax/go.vim
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"
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" Comments; their contents
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syn keyword goTodo contained NOTE
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hi def link goTodo Todo
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syn match goVarArgs /\.\.\./
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" Operators;
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if go#config#HighlightOperators()
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" match single-char operators: - + % < > ! & | ^ * =
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" and corresponding two-char operators: -= += %= <= >= != &= |= ^= *= ==
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syn match goOperator /[-+%<>!&|^*=]=\?/
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" match / and /=
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syn match goOperator /\/\%(=\|\ze[^/*]\)/
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" match two-char operators: << >> &^
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" and corresponding three-char operators: <<= >>= &^=
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syn match goOperator /\%(<<\|>>\|&^\)=\?/
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" match remaining two-char operators: := && || <- ++ --
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syn match goOperator /:=\|||\|<-\|++\|--/
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" match ...
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hi def link goPointerOperator goOperator
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hi def link goVarArgs goOperator
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endif
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hi def link goOperator Operator
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" Functions;
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if go#config#HighlightFunctions() || go#config#HighlightFunctionParameters()
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syn match goDeclaration /\<func\>/ nextgroup=goReceiver,goFunction,goSimpleParams skipwhite skipnl
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syn match goReceiverVar /\w\+\ze\s\+\%(\w\|\*\)/ nextgroup=goPointerOperator,goReceiverType skipwhite skipnl contained
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syn match goPointerOperator /\*/ nextgroup=goReceiverType contained skipwhite skipnl
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syn match goFunction /\w\+/ nextgroup=goSimpleParams contained skipwhite skipnl
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syn match goReceiverType /\w\+/ contained
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if go#config#HighlightFunctionParameters()
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syn match goSimpleParams /(\%(\w\|\_s\|[*\.\[\],\{\}<>-]\)*)/ contained contains=goParamName,goType nextgroup=goFunctionReturn skipwhite skipnl
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syn match goFunctionReturn /(\%(\w\|\_s\|[*\.\[\],\{\}<>-]\)*)/ contained contains=goParamName,goType skipwhite skipnl
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syn match goParamName /\w\+\%(\s*,\s*\w\+\)*\ze\s\+\%(\w\|\.\|\*\|\[\)/ contained nextgroup=goParamType skipwhite skipnl
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syn match goParamType /\%([^,)]\|\_s\)\+,\?/ contained nextgroup=goParamName skipwhite skipnl
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\ contains=goVarArgs,goType,goSignedInts,goUnsignedInts,goFloats,goComplexes,goDeclType,goBlock
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hi def link goReceiverVar goParamName
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hi def link goParamName Identifier
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endif
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syn match goReceiver /(\s*\w\+\%(\s\+\*\?\s*\w\+\)\?\s*)\ze\s*\w/ contained nextgroup=goFunction contains=goReceiverVar skipwhite skipnl
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else
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syn keyword goDeclaration func
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endif
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hi def link goFunction Function
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" Function calls;
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if go#config#HighlightFunctionCalls()
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syn match goFunctionCall /\w\+\ze(/ contains=goBuiltins,goDeclaration
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endif
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hi def link goFunctionCall Type
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" Fields;
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if go#config#HighlightFields()
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" 1. Match a sequence of word characters coming after a '.'
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" 2. Require the following but dont match it: ( \@= see :h E59)
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" - The symbols: / - + * % OR
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" - The symbols: [] {} <> ) OR
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" - The symbols: \n \r space OR
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" - The symbols: , : .
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" 3. Have the start of highlight (hs) be the start of matched
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" pattern (s) offsetted one to the right (+1) (see :h E401)
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syn match goField /\.\w\+\
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\%(\%([\/\-\+*%]\)\|\
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\%([\[\]{}<\>\)]\)\|\
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\%([\!=\^|&]\)\|\
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\%([\n\r\ ]\)\|\
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\%([,\:.]\)\)\@=/hs=s+1
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endif
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hi def link goField Identifier
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" Structs & Interfaces;
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if go#config#HighlightTypes()
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syn match goTypeConstructor /\<\w\+{\@=/
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syn match goTypeDecl /\<type\>/ nextgroup=goTypeName skipwhite skipnl
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syn match goTypeName /\w\+/ contained nextgroup=goDeclType skipwhite skipnl
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syn match goDeclType /\<\%(interface\|struct\)\>/ skipwhite skipnl
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hi def link goReceiverType Type
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else
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syn keyword goDeclType struct interface
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syn keyword goDeclaration type
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endif
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hi def link goTypeConstructor Type
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hi def link goTypeName Type
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hi def link goTypeDecl Keyword
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hi def link goDeclType Keyword
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" Variable Assignments
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if go#config#HighlightVariableAssignments()
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syn match goVarAssign /\v[_.[:alnum:]]+(,\s*[_.[:alnum:]]+)*\ze(\s*([-^+|^\/%&]|\*|\<\<|\>\>|\&\^)?\=[^=])/
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hi def link goVarAssign Special
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endif
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" Variable Declarations
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if go#config#HighlightVariableDeclarations()
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syn match goVarDefs /\v\w+(,\s*\w+)*\ze(\s*:\=)/
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hi def link goVarDefs Special
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endif
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" Build Constraints
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if go#config#HighlightBuildConstraints()
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syn match goBuildKeyword display contained "+build"
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" Highlight the known values of GOOS, GOARCH, and other +build options.
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syn keyword goBuildDirectives contained
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\ android darwin dragonfly freebsd linux nacl netbsd openbsd plan9
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\ solaris windows 386 amd64 amd64p32 arm armbe arm64 arm64be ppc64
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\ ppc64le mips mipsle mips64 mips64le mips64p32 mips64p32le ppc
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\ s390 s390x sparc sparc64 cgo ignore race
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" Other words in the build directive are build tags not listed above, so
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" avoid highlighting them as comments by using a matchgroup just for the
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" start of the comment.
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" The rs=s+2 option lets the \s*+build portion be part of the inner region
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" instead of the matchgroup so it will be highlighted as a goBuildKeyword.
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syn region goBuildComment matchgroup=goBuildCommentStart
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\ start="//\s*+build\s"rs=s+2 end="$"
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\ contains=goBuildKeyword,goBuildDirectives
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hi def link goBuildCommentStart Comment
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hi def link goBuildDirectives Type
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hi def link goBuildKeyword PreProc
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endif
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if go#config#HighlightBuildConstraints() || go#config#FoldEnable('package_comment')
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" One or more line comments that are followed immediately by a "package"
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" declaration are treated like package documentation, so these must be
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" matched as comments to avoid looking like working build constraints.
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" The he, me, and re options let the "package" itself be highlighted by
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" the usual rules.
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exe 'syn region goPackageComment start=/\v(\/\/.*\n)+\s*package/'
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\ . ' end=/\v\n\s*package/he=e-7,me=e-7,re=e-7'
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\ . ' contains=@goCommentGroup,@Spell'
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\ . (go#config#FoldEnable('package_comment') ? ' fold' : '')
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exe 'syn region goPackageComment start=/\v^\s*\/\*.*\n(.*\n)*\s*\*\/\npackage/'
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\ . ' end=/\v\*\/\n\s*package/he=e-7,me=e-7,re=e-7'
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\ . ' contains=@goCommentGroup,@Spell'
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\ . (go#config#FoldEnable('package_comment') ? ' fold' : '')
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hi def link goPackageComment Comment
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endif
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" :GoCoverage commands
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hi def link goCoverageNormalText Comment
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function! s:hi()
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hi def link goSameId Search
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" :GoCoverage commands
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hi def goCoverageCovered ctermfg=green guifg=#A6E22E
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hi def goCoverageUncover ctermfg=red guifg=#F92672
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" :GoDebug commands
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if go#config#HighlightDebug()
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hi GoDebugBreakpoint term=standout ctermbg=117 ctermfg=0 guibg=#BAD4F5 guifg=Black
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hi GoDebugCurrent term=reverse ctermbg=12 ctermfg=7 guibg=DarkBlue guifg=White
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endif
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endfunction
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augroup vim-go-hi
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autocmd!
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autocmd ColorScheme * call s:hi()
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augroup end
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call s:hi()
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" Search backwards for a global declaration to start processing the syntax.
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"syn sync match goSync grouphere NONE /^\(const\|var\|type\|func\)\>/
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" There's a bug in the implementation of grouphere. For now, use the
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" following as a more expensive/less precise workaround.
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syn sync minlines=500
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let b:current_syntax = "go"
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" vim: sw=2 ts=2 et
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