neovim/runtime/syntax/go.vim
Christian Clason ee18c26f26 vim-patch:122d06858568
runtime(go): fix highlighting import string followed by some comment (vim/vim#14538)

122d068585

Co-authored-by: Linda_pp <rhysd@users.noreply.github.com>
2024-04-13 22:41:51 +02:00

562 lines
25 KiB
VimL

" Copyright 2009 The Go Authors. All rights reserved.
" Use of this source code is governed by a BSD-style
" license that can be found in the LICENSE file.
"
" go.vim: Vim syntax file for Go.
" Language: Go
" Maintainer: Billie Cleek <bhcleek@gmail.com>
" Latest Revision: 2024-04-13
" 2024-03-17: - fix goPackageComment highlight (by Vim Project)
" License: BSD-style. See LICENSE file in source repository.
" Repository: https://github.com/fatih/vim-go
" Quit when a (custom) syntax file was already loaded
if exists("b:current_syntax")
finish
endif
let s:keepcpo = &cpo
set cpo&vim
function! s:FoldEnable(...) abort
if a:0 > 0
return index(s:FoldEnable(), a:1) > -1
endif
return get(g:, 'go_fold_enable', ['block', 'import', 'varconst', 'package_comment'])
endfunction
function! s:HighlightArrayWhitespaceError() abort
return get(g:, 'go_highlight_array_whitespace_error', 0)
endfunction
function! s:HighlightChanWhitespaceError() abort
return get(g:, 'go_highlight_chan_whitespace_error', 0)
endfunction
function! s:HighlightExtraTypes() abort
return get(g:, 'go_highlight_extra_types', 0)
endfunction
function! s:HighlightSpaceTabError() abort
return get(g:, 'go_highlight_space_tab_error', 0)
endfunction
function! s:HighlightTrailingWhitespaceError() abort
return get(g:, 'go_highlight_trailing_whitespace_error', 0)
endfunction
function! s:HighlightOperators() abort
return get(g:, 'go_highlight_operators', 0)
endfunction
function! s:HighlightFunctions() abort
return get(g:, 'go_highlight_functions', 0)
endfunction
function! s:HighlightFunctionParameters() abort
return get(g:, 'go_highlight_function_parameters', 0)
endfunction
function! s:HighlightFunctionCalls() abort
return get(g:, 'go_highlight_function_calls', 0)
endfunction
function! s:HighlightFields() abort
return get(g:, 'go_highlight_fields', 0)
endfunction
function! s:HighlightTypes() abort
return get(g:, 'go_highlight_types', 0)
endfunction
function! s:HighlightBuildConstraints() abort
return get(g:, 'go_highlight_build_constraints', 0)
endfunction
function! s:HighlightStringSpellcheck() abort
return get(g:, 'go_highlight_string_spellcheck', 1)
endfunction
function! s:HighlightFormatStrings() abort
return get(g:, 'go_highlight_format_strings', 1)
endfunction
function! s:HighlightGenerateTags() abort
return get(g:, 'go_highlight_generate_tags', 0)
endfunction
function! s:HighlightVariableAssignments() abort
return get(g:, 'go_highlight_variable_assignments', 0)
endfunction
function! s:HighlightVariableDeclarations() abort
return get(g:, 'go_highlight_variable_declarations', 0)
endfunction
syn case match
syn keyword goPackage package
syn keyword goImport import contained
syn keyword goVar var contained
syn keyword goConst const contained
hi def link goPackage Statement
hi def link goImport Statement
hi def link goVar Keyword
hi def link goConst Keyword
hi def link goDeclaration Keyword
" Keywords within functions
syn keyword goStatement defer go goto return break continue fallthrough
syn keyword goConditional if else switch select
syn keyword goLabel case default
syn keyword goRepeat for range
hi def link goStatement Statement
hi def link goConditional Conditional
hi def link goLabel Label
hi def link goRepeat Repeat
" Predefined types
syn keyword goType chan map bool string error any comparable
syn keyword goSignedInts int int8 int16 int32 int64 rune
syn keyword goUnsignedInts byte uint uint8 uint16 uint32 uint64 uintptr
syn keyword goFloats float32 float64
syn keyword goComplexes complex64 complex128
hi def link goType Type
hi def link goSignedInts Type
hi def link goUnsignedInts Type
hi def link goFloats Type
hi def link goComplexes Type
" Predefined functions and values
syn keyword goBuiltins append cap clear close complex copy delete imag len
syn keyword goBuiltins make max min new panic print println real recover
syn keyword goBoolean true false
syn keyword goPredefinedIdentifiers nil iota
hi def link goBuiltins Identifier
hi def link goPredefinedIdentifiers Constant
" Boolean links to Constant by default by vim: goBoolean and goPredefinedIdentifiers
" will be highlighted the same, but having the separate groups allows users to
" have separate highlighting for them if they desire.
hi def link goBoolean Boolean
" Comments; their contents
syn keyword goTodo contained TODO FIXME XXX BUG
syn cluster goCommentGroup contains=goTodo
syn region goComment start="//" end="$" contains=goGenerate,@goCommentGroup,@Spell
if s:FoldEnable('comment')
syn region goComment start="/\*" end="\*/" contains=@goCommentGroup,@Spell fold
syn match goComment "\v(^\s*//.*\n)+" contains=goGenerate,@goCommentGroup,@Spell fold
else
syn region goComment start="/\*" end="\*/" contains=@goCommentGroup,@Spell
endif
hi def link goComment Comment
hi def link goTodo Todo
if s:HighlightGenerateTags()
syn match goGenerateVariables contained /\%(\$GOARCH\|\$GOOS\|\$GOFILE\|\$GOLINE\|\$GOPACKAGE\|\$DOLLAR\)\>/
syn region goGenerate start="^\s*//go:generate" end="$" contains=goGenerateVariables
hi def link goGenerate PreProc
hi def link goGenerateVariables Special
endif
" Go escapes
syn match goEscapeOctal display contained "\\[0-7]\{3}"
syn match goEscapeC display contained +\\[abfnrtv\\'"]+
syn match goEscapeX display contained "\\x\x\{2}"
syn match goEscapeU display contained "\\u\x\{4}"
syn match goEscapeBigU display contained "\\U\x\{8}"
syn match goEscapeError display contained +\\[^0-7xuUabfnrtv\\'"]+
hi def link goEscapeOctal goSpecialString
hi def link goEscapeC goSpecialString
hi def link goEscapeX goSpecialString
hi def link goEscapeU goSpecialString
hi def link goEscapeBigU goSpecialString
hi def link goSpecialString Special
hi def link goEscapeError Error
" Strings and their contents
syn cluster goStringGroup contains=goEscapeOctal,goEscapeC,goEscapeX,goEscapeU,goEscapeBigU,goEscapeError
if s:HighlightStringSpellcheck()
syn region goString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=@goStringGroup,@Spell
syn region goRawString start=+`+ end=+`+ contains=@Spell
else
syn region goString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=@goStringGroup
syn region goRawString start=+`+ end=+`+
endif
syn match goImportString /^\%(\s\+\|import \)\(\h\w* \)\?\zs"[^"]\+"/ contained containedin=goImport
if s:HighlightFormatStrings()
" [n] notation is valid for specifying explicit argument indexes
" 1. Match a literal % not preceded by a %.
" 2. Match any number of -, #, 0, space, or +
" 3. Match * or [n]* or any number or nothing before a .
" 4. Match * or [n]* or any number or nothing after a .
" 5. Match [n] or nothing before a verb
" 6. Match a formatting verb
syn match goFormatSpecifier /\
\%([^%]\%(%%\)*\)\
\@<=%[-#0 +]*\
\%(\%(\%(\[\d\+\]\)\=\*\)\|\d\+\)\=\
\%(\.\%(\%(\%(\[\d\+\]\)\=\*\)\|\d\+\)\=\)\=\
\%(\[\d\+\]\)\=[vTtbcdoqxXUeEfFgGspw]/ contained containedin=goString,goRawString
hi def link goFormatSpecifier goSpecialString
endif
hi def link goImportString String
hi def link goString String
hi def link goRawString String
" Characters; their contents
syn cluster goCharacterGroup contains=goEscapeOctal,goEscapeC,goEscapeX,goEscapeU,goEscapeBigU
syn region goCharacter start=+'+ skip=+\\\\\|\\'+ end=+'+ contains=@goCharacterGroup
hi def link goCharacter Character
" Regions
syn region goParen start='(' end=')' transparent
if s:FoldEnable('block')
syn region goBlock start="{" end="}" transparent fold
else
syn region goBlock start="{" end="}" transparent
endif
" import
if s:FoldEnable('import')
syn region goImport start='import (' end=')' transparent fold contains=goImport,goImportString,goComment
syn match goImport /^import ()/ transparent fold contains=goImport
else
syn region goImport start='import (' end=')' transparent contains=goImport,goImportString,goComment
syn match goImport /^import ()/ transparent contains=goImport
endif
" var, const
if s:FoldEnable('varconst')
syn region goVar start='var (' end='^\s*)$' transparent fold
\ contains=ALLBUT,goParen,goBlock,goFunction,goTypeName,goReceiverType,goReceiverVar,goParamName,goParamType,goSimpleParams,goPointerOperator
syn match goVar /var ()/ transparent fold
\ contains=goVar
syn region goConst start='const (' end='^\s*)$' transparent fold
\ contains=ALLBUT,goParen,goBlock,goFunction,goTypeName,goReceiverType,goReceiverVar,goParamName,goParamType,goSimpleParams,goPointerOperator
syn match goConst /const ()/ transparent fold
\ contains=goConst
else
syn region goVar start='var (' end='^\s*)$' transparent
\ contains=ALLBUT,goParen,goBlock,goFunction,goTypeName,goReceiverType,goReceiverVar,goParamName,goParamType,goSimpleParams,goPointerOperator
syn match goVar /var ()/ transparent
\ contains=goVar
syn region goConst start='const (' end='^\s*)$' transparent
\ contains=ALLBUT,goParen,goBlock,goFunction,goTypeName,goReceiverType,goReceiverVar,goParamName,goParamType,goSimpleParams,goPointerOperator
syn match goConst /const ()/ transparent
\ contains=goConst
endif
" Single-line var, const, and import.
syn match goSingleDecl /\%(import\|var\|const\) [^(]\@=/ contains=goImport,goVar,goConst
" Integers
syn match goDecimalInt "\<-\=\%(0\|\%(\d\|\d_\d\)\+\)\>"
syn match goHexadecimalInt "\<-\=0[xX]_\?\%(\x\|\x_\x\)\+\>"
syn match goOctalInt "\<-\=0[oO]\?_\?\%(\o\|\o_\o\)\+\>"
syn match goBinaryInt "\<-\=0[bB]_\?\%([01]\|[01]_[01]\)\+\>"
hi def link goDecimalInt Integer
hi def link goDecimalError Error
hi def link goHexadecimalInt Integer
hi def link goHexadecimalError Error
hi def link goOctalInt Integer
hi def link goOctalError Error
hi def link goBinaryInt Integer
hi def link goBinaryError Error
hi def link Integer Number
" Floating point
"float_lit = decimal_float_lit | hex_float_lit .
"
"decimal_float_lit = decimal_digits "." [ decimal_digits ] [ decimal_exponent ] |
" decimal_digits decimal_exponent |
" "." decimal_digits [ decimal_exponent ] .
"decimal_exponent = ( "e" | "E" ) [ "+" | "-" ] decimal_digits .
"
"hex_float_lit = "0" ( "x" | "X" ) hex_mantissa hex_exponent .
"hex_mantissa = [ "_" ] hex_digits "." [ hex_digits ] |
" [ "_" ] hex_digits |
" "." hex_digits .
"hex_exponent = ( "p" | "P" ) [ "+" | "-" ] decimal_digits .
" decimal floats with a decimal point
syn match goFloat "\<-\=\%(0\|\%(\d\|\d_\d\)\+\)\.\%(\%(\%(\d\|\d_\d\)\+\)\=\%([Ee][-+]\=\%(\d\|\d_\d\)\+\)\=\>\)\="
syn match goFloat "\s\zs-\=\.\%(\d\|\d_\d\)\+\%(\%([Ee][-+]\=\%(\d\|\d_\d\)\+\)\>\)\="
" decimal floats without a decimal point
syn match goFloat "\<-\=\%(0\|\%(\d\|\d_\d\)\+\)[Ee][-+]\=\%(\d\|\d_\d\)\+\>"
" hexadecimal floats with a decimal point
syn match goHexadecimalFloat "\<-\=0[xX]\%(_\x\|\x\)\+\.\%(\%(\x\|\x_\x\)\+\)\=\%([Pp][-+]\=\%(\d\|\d_\d\)\+\)\=\>"
syn match goHexadecimalFloat "\<-\=0[xX]\.\%(\x\|\x_\x\)\+\%([Pp][-+]\=\%(\d\|\d_\d\)\+\)\=\>"
" hexadecimal floats without a decimal point
syn match goHexadecimalFloat "\<-\=0[xX]\%(_\x\|\x\)\+[Pp][-+]\=\%(\d\|\d_\d\)\+\>"
hi def link goFloat Float
hi def link goHexadecimalFloat Float
" Imaginary literals
syn match goImaginaryDecimal "\<-\=\%(0\|\%(\d\|\d_\d\)\+\)i\>"
syn match goImaginaryHexadecimal "\<-\=0[xX]_\?\%(\x\|\x_\x\)\+i\>"
syn match goImaginaryOctal "\<-\=0[oO]\?_\?\%(\o\|\o_\o\)\+i\>"
syn match goImaginaryBinary "\<-\=0[bB]_\?\%([01]\|[01]_[01]\)\+i\>"
" imaginary decimal floats with a decimal point
syn match goImaginaryFloat "\<-\=\%(0\|\%(\d\|\d_\d\)\+\)\.\%(\%(\%(\d\|\d_\d\)\+\)\=\%([Ee][-+]\=\%(\d\|\d_\d\)\+\)\=\)\=i\>"
syn match goImaginaryFloat "\s\zs-\=\.\%(\d\|\d_\d\)\+\%([Ee][-+]\=\%(\d\|\d_\d\)\+\)\=i\>"
" imaginary decimal floats without a decimal point
syn match goImaginaryFloat "\<-\=\%(0\|\%(\d\|\d_\d\)\+\)[Ee][-+]\=\%(\d\|\d_\d\)\+i\>"
" imaginary hexadecimal floats with a decimal point
syn match goImaginaryHexadecimalFloat "\<-\=0[xX]\%(_\x\|\x\)\+\.\%(\%(\x\|\x_\x\)\+\)\=\%([Pp][-+]\=\%(\d\|\d_\d\)\+\)\=i\>"
syn match goImaginaryHexadecimalFloat "\<-\=0[xX]\.\%(\x\|\x_\x\)\+\%([Pp][-+]\=\%(\d\|\d_\d\)\+\)\=i\>"
" imaginary hexadecimal floats without a decimal point
syn match goImaginaryHexadecimalFloat "\<-\=0[xX]\%(_\x\|\x\)\+[Pp][-+]\=\%(\d\|\d_\d\)\+i\>"
hi def link goImaginaryDecimal Number
hi def link goImaginaryHexadecimal Number
hi def link goImaginaryOctal Number
hi def link goImaginaryBinary Number
hi def link goImaginaryFloat Float
hi def link goImaginaryHexadecimalFloat Float
" Spaces after "[]"
if s:HighlightArrayWhitespaceError()
syn match goSpaceError display "\%(\[\]\)\@<=\s\+"
endif
" Spacing errors around the 'chan' keyword
if s:HighlightChanWhitespaceError()
" receive-only annotation on chan type
"
" \(\<chan\>\)\@<!<- (only pick arrow when it doesn't come after a chan)
" this prevents picking up 'chan<- chan<-' but not '<- chan'
syn match goSpaceError display "\%(\%(\<chan\>\)\@<!<-\)\@<=\s\+\%(\<chan\>\)\@="
" send-only annotation on chan type
"
" \(<-\)\@<!\<chan\> (only pick chan when it doesn't come after an arrow)
" this prevents picking up '<-chan <-chan' but not 'chan <-'
syn match goSpaceError display "\%(\%(<-\)\@<!\<chan\>\)\@<=\s\+\%(<-\)\@="
" value-ignoring receives in a few contexts
syn match goSpaceError display "\%(\%(^\|[={(,;]\)\s*<-\)\@<=\s\+"
endif
" Extra types commonly seen
if s:HighlightExtraTypes()
syn match goExtraType /\<bytes\.\%(Buffer\)\>/
syn match goExtraType /\<context\.\%(Context\)\>/
syn match goExtraType /\<io\.\%(Reader\|ReadSeeker\|ReadWriter\|ReadCloser\|ReadWriteCloser\|Writer\|WriteCloser\|Seeker\)\>/
syn match goExtraType /\<reflect\.\%(Kind\|Type\|Value\)\>/
syn match goExtraType /\<unsafe\.Pointer\>/
endif
" Space-tab error
if s:HighlightSpaceTabError()
syn match goSpaceError display " \+\t"me=e-1
endif
" Trailing white space error
if s:HighlightTrailingWhitespaceError()
syn match goSpaceError display excludenl "\s\+$"
endif
hi def link goExtraType Type
hi def link goSpaceError Error
" included from: https://github.com/athom/more-colorful.vim/blob/master/after/syntax/go.vim
"
" Comments; their contents
syn keyword goTodo contained NOTE
hi def link goTodo Todo
syn match goVarArgs /\.\.\./
" Operators;
if s:HighlightOperators()
" match single-char operators: - + % < > ! & | ^ * =
" and corresponding two-char operators: -= += %= <= >= != &= |= ^= *= ==
syn match goOperator /[-+%<>!&|^*=]=\?/
" match / and /=
syn match goOperator /\/\%(=\|\ze[^/*]\)/
" match two-char operators: << >> &^
" and corresponding three-char operators: <<= >>= &^=
syn match goOperator /\%(<<\|>>\|&^\)=\?/
" match remaining two-char operators: := && || <- ++ --
syn match goOperator /:=\|||\|<-\|++\|--/
" match ~
syn match goOperator /\~/
" match ...
hi def link goPointerOperator goOperator
hi def link goVarArgs goOperator
endif
hi def link goOperator Operator
" -> type constraint opening bracket
" |-> start non-counting group
" || -> any word character
" || | -> at least one, as many as possible
" || | | -> start non-counting group
" || | | | -> match ~
" || | | | | -> at most once
" || | | | | | -> allow a slice type
" || | | | | | | -> any word character
" || | | | | | | | -> start a non-counting group
" || | | | | | | | | -> that matches word characters and |
" || | | | | | | | | | -> close the non-counting group
" || | | | | | | | | | | -> close the non-counting group
" || | | | | | | | | | | |-> any number of matches
" || | | | | | | | | | | || -> start a non-counting group
" || | | | | | | | | | | || | -> a comma and whitespace
" || | | | | | | | | | | || | | -> at most once
" || | | | | | | | | | | || | | | -> close the non-counting group
" || | | | | | | | | | | || | | | | -> at least one of those non-counting groups, as many as possible
" || | | | | | -------- | | | | || | | | | | -> type constraint closing bracket
" || | | | | || | | | | | || | | | | | |
syn match goTypeParams /\[\%(\w\+\s\+\%(\~\?\%(\[]\)\?\w\%(\w\||\)\)*\%(,\s*\)\?\)\+\]/ nextgroup=goSimpleParams,goDeclType contained
" Functions;
if s:HighlightFunctions() || s:HighlightFunctionParameters()
syn match goDeclaration /\<func\>/ nextgroup=goReceiver,goFunction,goSimpleParams skipwhite skipnl
syn match goReceiverDecl /(\s*\zs\%(\%(\w\+\s\+\)\?\*\?\w\+\%(\[\%(\%(\[\]\)\?\w\+\%(,\s*\)\?\)\+\]\)\?\)\ze\s*)/ contained contains=goReceiverVar,goReceiverType,goPointerOperator
syn match goReceiverVar /\w\+\ze\s\+\%(\w\|\*\)/ nextgroup=goPointerOperator,goReceiverType skipwhite skipnl contained
syn match goPointerOperator /\*/ nextgroup=goReceiverType contained skipwhite skipnl
syn match goFunction /\w\+/ nextgroup=goSimpleParams,goTypeParams contained skipwhite skipnl
syn match goReceiverType /\w\+\%(\[\%(\%(\[\]\)\?\w\+\%(,\s*\)\?\)\+\]\)\?\ze\s*)/ contained
if s:HighlightFunctionParameters()
syn match goSimpleParams /(\%(\w\|\_s\|[*\.\[\],\{\}<>-]\)*)/ contained contains=goParamName,goType nextgroup=goFunctionReturn skipwhite skipnl
syn match goFunctionReturn /(\%(\w\|\_s\|[*\.\[\],\{\}<>-]\)*)/ contained contains=goParamName,goType skipwhite skipnl
syn match goParamName /\w\+\%(\s*,\s*\w\+\)*\ze\s\+\%(\w\|\.\|\*\|\[\)/ contained nextgroup=goParamType skipwhite skipnl
syn match goParamType /\%([^,)]\|\_s\)\+,\?/ contained nextgroup=goParamName skipwhite skipnl
\ contains=goVarArgs,goType,goSignedInts,goUnsignedInts,goFloats,goComplexes,goDeclType,goBlock
hi def link goReceiverVar goParamName
hi def link goParamName Identifier
endif
syn match goReceiver /(\s*\%(\w\+\s\+\)\?\*\?\s*\w\+\%(\[\%(\%(\[\]\)\?\w\+\%(,\s*\)\?\)\+\]\)\?\s*)\ze\s*\w/ contained nextgroup=goFunction contains=goReceiverDecl skipwhite skipnl
else
syn keyword goDeclaration func
endif
hi def link goFunction Function
" Function calls;
if s:HighlightFunctionCalls()
syn match goFunctionCall /\w\+\ze\%(\[\%(\%(\[]\)\?\w\+\(,\s*\)\?\)\+\]\)\?(/ contains=goBuiltins,goDeclaration
endif
hi def link goFunctionCall Type
" Fields;
if s:HighlightFields()
" 1. Match a sequence of word characters coming after a '.'
" 2. Require the following but dont match it: ( \@= see :h E59)
" - The symbols: / - + * % OR
" - The symbols: [] {} <> ) OR
" - The symbols: \n \r space OR
" - The symbols: , : .
" 3. Have the start of highlight (hs) be the start of matched
" pattern (s) offsetted one to the right (+1) (see :h E401)
syn match goField /\.\w\+\
\%(\%([\/\-\+*%]\)\|\
\%([\[\]{}<\>\)]\)\|\
\%([\!=\^|&]\)\|\
\%([\n\r\ ]\)\|\
\%([,\:.]\)\)\@=/hs=s+1
endif
hi def link goField Identifier
" Structs & Interfaces;
if s:HighlightTypes()
syn match goTypeConstructor /\<\w\+{\@=/
syn match goTypeDecl /\<type\>/ nextgroup=goTypeName skipwhite skipnl
syn match goTypeName /\w\+/ contained nextgroup=goDeclType,goTypeParams skipwhite skipnl
syn match goDeclType /\<\%(interface\|struct\)\>/ skipwhite skipnl
hi def link goReceiverType Type
else
syn keyword goDeclType struct interface
syn keyword goDeclaration type
endif
hi def link goTypeConstructor Type
hi def link goTypeName Type
hi def link goTypeDecl Keyword
hi def link goDeclType Keyword
" Variable Assignments
if s:HighlightVariableAssignments()
syn match goVarAssign /\v[_.[:alnum:]]+(,\s*[_.[:alnum:]]+)*\ze(\s*([-^+|^\/%&]|\*|\<\<|\>\>|\&\^)?\=[^=])/
hi def link goVarAssign Special
endif
" Variable Declarations
if s:HighlightVariableDeclarations()
syn match goVarDefs /\v\w+(,\s*\w+)*\ze(\s*:\=)/
hi def link goVarDefs Special
endif
" Build Constraints
if s:HighlightBuildConstraints()
syn match goBuildKeyword display contained "+build\|go:build"
" Highlight the known values of GOOS, GOARCH, and other +build options.
syn keyword goBuildDirectives contained
\ android darwin dragonfly freebsd linux nacl netbsd openbsd plan9
\ solaris windows 386 amd64 amd64p32 arm armbe arm64 arm64be ppc64
\ ppc64le mips mipsle mips64 mips64le mips64p32 mips64p32le ppc
\ s390 s390x sparc sparc64 cgo ignore race
" Other words in the build directive are build tags not listed above, so
" avoid highlighting them as comments by using a matchgroup just for the
" start of the comment.
" The rs=s+2 option lets the \s*+build portion be part of the inner region
" instead of the matchgroup so it will be highlighted as a goBuildKeyword.
syn region goBuildComment matchgroup=goBuildCommentStart
\ start="//\(\s*+build\s\|go:build\)"rs=s+2 end="$"
\ contains=goBuildKeyword,goBuildDirectives
hi def link goBuildCommentStart Comment
hi def link goBuildDirectives Type
hi def link goBuildKeyword PreProc
endif
if s:HighlightBuildConstraints() || s:FoldEnable('package_comment')
" One or more line comments that are followed immediately by a "package"
" declaration are treated like package documentation, so these must be
" matched as comments to avoid looking like working build constraints.
" The he, me, and re options let the "package" itself be highlighted by
" the usual rules.
exe 'syn region goPackageComment start=/\v(\/\/.*\n)+\s*package\s/'
\ . ' end=/\v\n\s*package\s/he=e-8,me=e-8,re=e-8'
\ . ' contains=@goCommentGroup,@Spell'
\ . (s:FoldEnable('package_comment') ? ' fold' : '')
exe 'syn region goPackageComment start=/\v^\s*\/\*.*\n(.*\n)*\s*\*\/\npackage\s/'
\ . ' end=/\v\*\/\n\s*package\s/he=e-8,me=e-8,re=e-8'
\ . ' contains=@goCommentGroup,@Spell'
\ . (s:FoldEnable('package_comment') ? ' fold' : '')
hi def link goPackageComment Comment
endif
" :GoCoverage commands
hi def link goCoverageNormalText Comment
" Search backwards for a global declaration to start processing the syntax.
"syn sync match goSync grouphere NONE /^\(const\|var\|type\|func\)\>/
" There's a bug in the implementation of grouphere. For now, use the
" following as a more expensive/less precise workaround.
syn sync minlines=500
let b:current_syntax = "go"
let &cpo = s:keepcpo
unlet s:keepcpo
" vim: sw=2 sts=2 et