mirror of
https://github.com/vim/vim.git
synced 2025-10-31 09:57:14 -04:00
209 lines
7.7 KiB
VimL
209 lines
7.7 KiB
VimL
" Vim syntax file
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" Language: Go
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" Maintainer: David Barnett (https://github.com/google/vim-ft-go)
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" Last Change: 2014 Aug 16
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" Options:
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" There are some options for customizing the highlighting; the recommended
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" settings are the default values, but you can write:
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" let OPTION_NAME = 0
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" in your ~/.vimrc file to disable particular options. You can also write:
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" let OPTION_NAME = 1
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" to enable particular options. At present, all options default to on.
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"
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" - g:go_highlight_array_whitespace_error
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" Highlights white space after "[]".
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" - g:go_highlight_chan_whitespace_error
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" Highlights white space around the communications operator that don't
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" follow the standard style.
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" - g:go_highlight_extra_types
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" Highlights commonly used library types (io.Reader, etc.).
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" - g:go_highlight_space_tab_error
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" Highlights instances of tabs following spaces.
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" - g:go_highlight_trailing_whitespace_error
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" Highlights trailing white space.
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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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if !exists('g:go_highlight_array_whitespace_error')
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let g:go_highlight_array_whitespace_error = 1
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endif
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if !exists('g:go_highlight_chan_whitespace_error')
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let g:go_highlight_chan_whitespace_error = 1
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endif
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if !exists('g:go_highlight_extra_types')
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let g:go_highlight_extra_types = 1
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endif
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if !exists('g:go_highlight_space_tab_error')
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let g:go_highlight_space_tab_error = 1
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endif
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if !exists('g:go_highlight_trailing_whitespace_error')
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let g:go_highlight_trailing_whitespace_error = 1
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endif
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syn case match
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syn keyword goDirective package import
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syn keyword goDeclaration var const type
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syn keyword goDeclType struct interface
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hi def link goDirective Statement
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hi def link goDeclaration Keyword
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hi def link goDeclType 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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" Treat func specially: it's a declaration at the start of a line, but a type
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" elsewhere. Order matters here.
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syn match goType /\<func\>/
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syn match goDeclaration /^func\>/
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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 goConstants iota true false nil
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hi def link goBuiltins Keyword
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hi def link goConstants Keyword
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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=@goCommentGroup,@Spell
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syn region goComment start="//" end="$" contains=@goCommentGroup,@Spell
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hi def link goComment Comment
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hi def link goTodo Todo
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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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syn region goString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=@goStringGroup
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syn region goRawString start=+`+ end=+`+
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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 goBlock start="{" end="}" transparent fold
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syn region goParen start='(' end=')' transparent
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" Integers
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syn match goDecimalInt "\<\d\+\([Ee]\d\+\)\?\>"
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syn match goHexadecimalInt "\<0x\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 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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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\+\.\d*\([Ee][-+]\d\+\)\?i\>"
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syn match goImaginary "\<\.\d\+\([Ee][-+]\d\+\)\?i\>"
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syn match goImaginary "\<\d\+[Ee][-+]\d\+i\>"
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hi def link goImaginary Number
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" Spaces after "[]"
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if go_highlight_array_whitespace_error != 0
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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_highlight_chan_whitespace_error != 0
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" receive-only annotation on chan type
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syn match goSpaceError display "\(<-\)\@<=\s\+\(chan\>\)\@="
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" send-only annotation on chan type
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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_highlight_extra_types != 0
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syn match goExtraType /\<bytes\.\(Buffer\)\>/
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syn match goExtraType /\<io\.\(Reader\|Writer\|ReadWriter\|ReadWriteCloser\)\>/
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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_highlight_space_tab_error != 0
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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_highlight_trailing_whitespace_error != 0
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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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" 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 sts=2 et
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