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300 lines
10 KiB
VimL
300 lines
10 KiB
VimL
10 years ago
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" 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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"
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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.
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" At present, all options default to on, except highlight of:
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" functions, methods and structs.
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"
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" - go_highlight_array_whitespace_error
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" Highlights white space after "[]".
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" - go_highlight_chan_whitespace_error
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" Highlights white space around the communications operator that don't follow
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" the standard style.
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" - go_highlight_extra_types
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" Highlights commonly used library types (io.Reader, etc.).
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" - go_highlight_space_tab_error
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" Highlights instances of tabs following spaces.
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" - 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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if !exists("g:go_highlight_operators")
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let g:go_highlight_operators = 1
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endif
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if !exists("g:go_highlight_functions")
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let g:go_highlight_functions = 0
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endif
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if !exists("g:go_highlight_methods")
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let g:go_highlight_methods = 0
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endif
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if !exists("g:go_highlight_structs")
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let g:go_highlight_structs = 0
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endif
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if !exists("g:go_highlight_build_constraints")
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let g:go_highlight_build_constraints = 0
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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 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 goBoolean iota true false nil
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hi def link goBuiltins Keyword
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hi def link goBoolean Boolean
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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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syn match goFormatSpecifier /%[#0\-\ \+\*]*[vTtbcdoqxXUeEfgGsp]/ contained containedin=goString
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hi def link goString String
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hi def link goRawString String
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hi def link goFormatSpecifier goSpecialString
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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 g: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 g: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 g:go_highlight_extra_types != 0
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syn match goExtraType /\<bytes\.\(Buffer\)\>/
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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 g: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 g: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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" 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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" Operators;
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if g:go_highlight_operators != 0
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syn match goOperator /:=/
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syn match goOperator />=/
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syn match goOperator /<=/
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syn match goOperator /==/
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syn match goOperator /!=/
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syn match goOperator /+=/
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syn match goOperator /-=/
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syn match goOperator /\s>\s/
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syn match goOperator /\s<\s/
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syn match goOperator /\s+\s/
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syn match goOperator /\s-\s/
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syn match goOperator /\s\*\s/
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syn match goOperator /\s\/\s/
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syn match goOperator /\s%\s/
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endif
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hi def link goOperator Operator
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" Functions;
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if g:go_highlight_functions != 0
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syn match goFunction /\(func\s\+\)\@<=\w\+\((\)\@=/
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syn match goFunction /\()\s\+\)\@<=\w\+\((\)\@=/
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endif
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hi def link goFunction Function
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" Methods;
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if g:go_highlight_methods != 0
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syn match goMethod /\(\.\)\@<=\w\+\((\)\@=/
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endif
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hi def link goMethod Type
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" Structs;
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if g:go_highlight_structs != 0
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syn match goStruct /\(.\)\@<=\w\+\({\)\@=/
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syn match goStructDef /\(type\s\+\)\@<=\w\+\(\s\+struct\s\+{\)\@=/
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endif
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hi def link goStruct Function
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hi def link goStructDef Function
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" Build Constraints
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if g:go_highlight_build_constraints != 0
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syn keyword goBuildOs contained ignore cgo android darwin dragonfly freebsd linux nacl netbsd openbsd plan9 solaris windows
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syn keyword goBuildArch contained 386 amd64 amd64p32 arm
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syn match goBuildDirective display contained "+build"
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syn region goBuildComment start="//\s*+build" end="$" contains=goBuildDirective,goBuildOs,goBuildArch
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syn region goBuildComment start="/\*\s*+build" end="\*/" contains=goBuildDirective,goBuildOs,goBuildArch
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endif
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hi def link goBuildComment Comment
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hi def link goBuildOs Type
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hi def link goBuildArch Type
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hi def link goBuildDirective PreProc
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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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