if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'go') == -1 " 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. " Quit when a (custom) syntax file was already loaded if exists("b:current_syntax") finish endif " Set settings to default values. if !exists("g:go_highlight_array_whitespace_error") let g:go_highlight_array_whitespace_error = 0 endif if !exists("g:go_highlight_chan_whitespace_error") let g:go_highlight_chan_whitespace_error = 0 endif if !exists("g:go_highlight_extra_types") let g:go_highlight_extra_types = 0 endif if !exists("g:go_highlight_space_tab_error") let g:go_highlight_space_tab_error = 0 endif if !exists("g:go_highlight_trailing_whitespace_error") let g:go_highlight_trailing_whitespace_error = 0 endif if !exists("g:go_highlight_operators") let g:go_highlight_operators = 0 endif if !exists("g:go_highlight_functions") let g:go_highlight_functions = 0 endif if !exists("g:go_highlight_function_arguments") let g:go_highlight_function_arguments = 0 endif if !exists("g:go_highlight_function_calls") let g:go_highlight_function_calls = 0 endif if !exists("g:go_highlight_fields") let g:go_highlight_fields = 0 endif if !exists("g:go_highlight_types") let g:go_highlight_types = 0 endif if !exists("g:go_highlight_build_constraints") let g:go_highlight_build_constraints = 0 endif if !exists("g:go_highlight_string_spellcheck") let g:go_highlight_string_spellcheck = 1 endif if !exists("g:go_highlight_format_strings") let g:go_highlight_format_strings = 1 endif if !exists("g:go_highlight_generate_tags") let g:go_highlight_generate_tags = 0 endif if !exists("g:go_highlight_variable_assignments") let g:go_highlight_variable_assignments = 0 endif if !exists("g:go_highlight_variable_declarations") let g:go_highlight_variable_declarations = 0 endif let s:fold_block = 1 let s:fold_import = 1 let s:fold_varconst = 1 let s:fold_package_comment = 1 let s:fold_comment = 0 if exists("g:go_fold_enable") " Enabled by default. if index(g:go_fold_enable, 'block') == -1 let s:fold_block = 0 endif if index(g:go_fold_enable, 'import') == -1 let s:fold_import = 0 endif if index(g:go_fold_enable, 'varconst') == -1 let s:fold_varconst = 0 endif if index(g:go_fold_enable, 'package_comment') == -1 let s:fold_package_comment = 0 endif " Disabled by default. if index(g:go_fold_enable, 'comment') > -1 let s:fold_comment = 1 endif endif 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 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 match goBuiltins /\<\v(append|cap|close|complex|copy|delete|imag|len)\ze\(/ syn match goBuiltins /\<\v(make|new|panic|print|println|real|recover)\ze\(/ syn keyword goBoolean true false syn keyword goPredefinedIdentifiers nil iota hi def link goBuiltins Keyword hi def link goBoolean Boolean hi def link goPredefinedIdentifiers goBoolean " 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:fold_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 g:go_highlight_generate_tags != 0 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 g:go_highlight_string_spellcheck != 0 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 if g:go_highlight_format_strings != 0 " [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\+\)\=\)\=\ \%(\[\d\+\]\)\=[vTtbcdoqxXUeEfFgGsp]/ contained containedin=goString,goRawString hi def link goFormatSpecifier goSpecialString endif 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:fold_block syn region goBlock start="{" end="}" transparent fold else syn region goBlock start="{" end="}" transparent endif " import if s:fold_import syn region goImport start='import (' end=')' transparent fold contains=goImport,goString,goComment else syn region goImport start='import (' end=')' transparent contains=goImport,goString,goComment endif " var, const if s:fold_varconst syn region goVar start='var (' end='^\s*)$' transparent fold \ contains=ALLBUT,goParen,goBlock,goFunction,goTypeName,goReceiverType,goReceiverVar,goArgumentName,goArgumentType,goSimpleArguments syn region goConst start='const (' end='^\s*)$' transparent fold \ contains=ALLBUT,goParen,goBlock,goFunction,goTypeName,goReceiverType,goReceiverVar,goArgumentName,goArgumentType,goSimpleArguments else syn region goVar start='var (' end='^\s*)$' transparent \ contains=ALLBUT,goParen,goBlock,goFunction,goTypeName,goReceiverType,goReceiverVar,goArgumentName,goArgumentType,goSimpleArguments syn region goConst start='const (' end='^\s*)$' transparent \ contains=ALLBUT,goParen,goBlock,goFunction,goTypeName,goReceiverType,goReceiverVar,goArgumentName,goArgumentType,goSimpleArguments endif " Single-line var, const, and import. syn match goSingleDecl /\(import\|var\|const\) [^(]\@=/ contains=goImport,goVar,goConst " Integers syn match goDecimalInt "\<-\=\d\+\%([Ee][-+]\=\d\+\)\=\>" syn match goHexadecimalInt "\<-\=0[xX]\x\+\>" syn match goOctalInt "\<-\=0\o\+\>" syn match goOctalError "\<-\=0\o*[89]\d*\>" hi def link goDecimalInt Integer hi def link goHexadecimalInt Integer hi def link goOctalInt Integer hi def link goOctalError Error hi def link Integer Number " Floating point syn match goFloat "\<-\=\d\+\.\d*\%([Ee][-+]\=\d\+\)\=\>" syn match goFloat "\<-\=\.\d\+\%([Ee][-+]\=\d\+\)\=\>" hi def link goFloat Float " Imaginary literals syn match goImaginary "\<-\=\d\+i\>" syn match goImaginary "\<-\=\d\+[Ee][-+]\=\d\+i\>" syn match goImaginaryFloat "\<-\=\d\+\.\d*\%([Ee][-+]\=\d\+\)\=i\>" syn match goImaginaryFloat "\<-\=\.\d\+\%([Ee][-+]\=\d\+\)\=i\>" hi def link goImaginary Number hi def link goImaginaryFloat Float " Spaces after "[]" if g:go_highlight_array_whitespace_error != 0 syn match goSpaceError display "\(\[\]\)\@<=\s\+" endif " Spacing errors around the 'chan' keyword if g:go_highlight_chan_whitespace_error != 0 " receive-only annotation on chan type " " \(\\)\@\)\@\)\@=" " send-only annotation on chan type " " \(<-\)\@ (only pick chan when it doesn't come after an arrow) " this prevents picking up '<-chan <-chan' but not 'chan <-' syn match goSpaceError display "\(\(<-\)\@\)\@<=\s\+\(<-\)\@=" " value-ignoring receives in a few contexts syn match goSpaceError display "\(\(^\|[={(,;]\)\s*<-\)\@<=\s\+" endif " Extra types commonly seen if g:go_highlight_extra_types != 0 syn match goExtraType /\/ syn match goExtraType /\/ syn match goExtraType /\/ syn match goExtraType /\/ endif " Space-tab error if g:go_highlight_space_tab_error != 0 syn match goSpaceError display " \+\t"me=e-1 endif " Trailing white space error if g:go_highlight_trailing_whitespace_error != 0 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 g:go_highlight_operators != 0 " 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 ... hi def link goPointerOperator goOperator hi def link goVarArgs goOperator endif hi def link goOperator Operator " Functions; if g:go_highlight_functions isnot 0 || g:go_highlight_function_arguments isnot 0 syn match goDeclaration /\/ nextgroup=goReceiver,goFunction,goSimpleArguments skipwhite skipnl 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=goSimpleArguments contained skipwhite skipnl syn match goReceiverType /\w\+/ contained if g:go_highlight_function_arguments isnot 0 syn match goSimpleArguments /(\(\w\|\_s\|[*\.\[\],\{\}<>-]\)*)/ contained contains=goArgumentName nextgroup=goSimpleArguments skipwhite skipnl syn match goArgumentName /\w\+\(\s*,\s*\w\+\)*\ze\s\+\(\w\|\.\|\*\|\[\)/ contained nextgroup=goArgumentType skipwhite skipnl syn match goArgumentType /\([^,)]\|\_s\)\+,\?/ contained nextgroup=goArgumentName skipwhite skipnl \ contains=goVarArgs,goType,goSignedInts,goUnsignedInts,goFloats,goComplexes,goDeclType,goBlock hi def link goReceiverVar goArgumentName hi def link goArgumentName Identifier endif syn match goReceiver /(\s*\w\+\(\s\+\*\?\s*\w\+\)\?\s*)\ze\s*\w/ contained nextgroup=goFunction contains=goReceiverVar skipwhite skipnl else syn keyword goDeclaration func endif hi def link goFunction Function " Function calls; if g:go_highlight_function_calls != 0 syn match goFunctionCall /\w\+\ze(/ contains=goBuiltins,goDeclaration endif hi def link goFunctionCall Type " Fields; if g:go_highlight_fields != 0 syn match goField /\.\w\+\([.\ \n\r\:\)\[,]\)\@=/hs=s+1 endif hi def link goField Identifier " Structs & Interfaces; if g:go_highlight_types != 0 syn match goTypeConstructor /\<\w\+{\@=/ syn match goTypeDecl /\/ nextgroup=goTypeName skipwhite skipnl syn match goTypeName /\w\+/ contained nextgroup=goDeclType 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 g:go_highlight_variable_assignments != 0 syn match goVarAssign /\v[_.[:alnum:]]+(,\s*[_.[:alnum:]]+)*\ze(\s*([-^+|^\/%&]|\*|\<\<|\>\>|\&\^)?\=[^=])/ hi def link goVarAssign Special endif " Variable Declarations if g:go_highlight_variable_declarations != 0 syn match goVarDefs /\v\w+(,\s*\w+)*\ze(\s*:\=)/ hi def link goVarDefs Special endif " Build Constraints if g:go_highlight_build_constraints != 0 syn match goBuildKeyword display contained "+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"rs=s+2 end="$" \ contains=goBuildKeyword,goBuildDirectives hi def link goBuildCommentStart Comment hi def link goBuildDirectives Type hi def link goBuildKeyword PreProc endif if g:go_highlight_build_constraints != 0 || s:fold_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/' \ . ' end=/\v\n\s*package/he=e-7,me=e-7,re=e-7' \ . ' contains=@goCommentGroup,@Spell' \ . (s:fold_package_comment ? ' fold' : '') exe 'syn region goPackageComment start=/\v\/\*.*\n(.*\n)*\s*\*\/\npackage/' \ . ' end=/\v\n\s*package/he=e-7,me=e-7,re=e-7' \ . ' contains=@goCommentGroup,@Spell' \ . (s:fold_package_comment ? ' fold' : '') hi def link goPackageComment Comment endif " :GoCoverage commands hi def link goCoverageNormalText Comment function! s:hi() hi def link goSameId Search " :GoCoverage commands hi def goCoverageCovered ctermfg=green guifg=#A6E22E hi def goCoverageUncover ctermfg=red guifg=#F92672 endfunction augroup vim-go-hi autocmd! autocmd ColorScheme * call s:hi() augroup end call s:hi() " 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" " vim: sw=2 ts=2 et endif