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Created April 25, 2023 01:07
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" Vim syntax file
" Language: JavaScript
" Maintainer: Claudio Fleiner <>
" Updaters: Scott Shattuck (ss) <>
" URL:
" Changes: (ss) added keywords, reserved words, and other identifiers
" (ss) repaired several quoting and grouping glitches
" (ss) fixed regex parsing issue with multiple qualifiers [gi]
" (ss) additional factoring of keywords, globals, and members
" Last Change: 2022 Jun 09
" 2013 Jun 12: adjusted javaScriptRegexpString (Kevin Locke)
" 2018 Apr 14: adjusted javaScriptRegexpString (LongJohnCoder)
" tuning parameters:
" unlet javaScript_fold
if !exists("main_syntax")
" quit when a syntax file was already loaded
if exists("b:current_syntax")
let main_syntax = 'javascript'
elseif exists("b:current_syntax") && b:current_syntax == "javascript"
let s:cpo_save = &cpo
set cpo&vim
syn keyword javaScriptCommentTodo TODO FIXME XXX TBD contained
syn match javaScriptLineComment "\/\/.*" contains=@Spell,javaScriptCommentTodo
syn match javaScriptCommentSkip "^[ \t]*\*\($\|[ \t]\+\)"
syn region javaScriptComment start="/\*" end="\*/" contains=@Spell,javaScriptCommentTodo
syn match javaScriptSpecial "\\\d\d\d\|\\."
syn region javaScriptStringD start=+"+ skip=+\\\\\|\\"+ end=+"\|$+ contains=javaScriptSpecial,@htmlPreproc
syn region javaScriptStringS start=+'+ skip=+\\\\\|\\'+ end=+'\|$+ contains=javaScriptSpecial,@htmlPreproc
syn region javaScriptStringT start=+`+ skip=+\\\\\|\\`+ end=+`+ contains=javaScriptSpecial,javaScriptEmbed,@htmlPreproc
syn region javaScriptEmbed start=+${+ end=+}+ contains=@javaScriptEmbededExpr
" number handling by Christopher Leonard
syn match javaScriptSpecialCharacter "'\\.'"
syn match javaScriptNumber "\<0[bB][0-1]\+\(_[0-1]\+\)*\>"
syn match javaScriptNumber "\<0[oO][0-7]\+\(_[0-7]\+\)*\>"
syn match javaScriptNumber "\<0\([0-7]\+\(_[0-7]\+\)*\)\?\>"
syn match javaScriptNumber "\<0[xX][0-9a-fA-F]\+\(_[0-9a-fA-F]\+\)*\>"
syn match javaScriptNumber "\<\d\+\(_\d\+\)*[eE][+-]\?\d\+\>"
syn match javaScriptNumber "\<[1-9]\d*\(_\d\+\)*\(\.\(\d\+\(_\d\+\)*\([eE][+-]\?\d\+\)\?\)\?\)\?\>"
syn match javaScriptNumber "\<\(\d\+\(_\d\+\)*\)\?\.\d\+\(_\d\+\)*\([eE][+-]\?\d\+\)\?\>"
syn match javaScriptNumber "\<\d\+\(_\d\+\)*\.\(\d\+\(_\d\+\)*\([eE][+-]\?\d\+\)\?\)\?\>"
syn region javaScriptRegexpString start=+[,(=+]\s*/[^/*]+ms=e-1,me=e-1 skip=+\\\\\|\\/+ end=+/[gimuys]\{0,2\}\s*$+ end=+/[gimuys]\{0,2\}\s*[+;.,)\]}]+me=e-1 end=+/[gimuys]\{0,2\}\s\+\/+me=e-1 contains=@htmlPreproc,javaScriptComment oneline
syn keyword javaScriptConditional if else switch
syn keyword javaScriptRepeat while for do in
syn keyword javaScriptBranch break continue
syn keyword javaScriptOperator new delete instanceof typeof
syn keyword javaScriptType Array Boolean Date Function Number Object String RegExp
syn keyword javaScriptStatement return with await
syn keyword javaScriptBoolean true false
syn keyword javaScriptNull null undefined
syn keyword javaScriptIdentifier arguments this var let
syn keyword javaScriptLabel case default
syn keyword javaScriptException try catch finally throw
syn keyword javaScriptMessage alert confirm prompt status
syn keyword javaScriptGlobal self window top parent
syn keyword javaScriptMember document event location
syn keyword javaScriptDeprecated escape unescape
syn keyword javaScriptReserved abstract boolean byte char class const debugger double enum export extends final float goto implements import int interface long native package private protected public short static super synchronized throws transient volatile async
syn cluster javaScriptEmbededExpr contains=javaScriptBoolean,javaScriptNull,javaScriptIdentifier,javaScriptStringD,javaScriptStringS,javaScriptStringT
if exists("javaScript_fold")
syn match javaScriptFunction "\<function\>"
syn region javaScriptFunctionFold start="\<function\>.*[^};]$" end="^\z1}.*$" transparent fold keepend
syn sync match javaScriptSync grouphere javaScriptFunctionFold "\<function\>"
syn sync match javaScriptSync grouphere NONE "^}"
setlocal foldmethod=syntax
setlocal foldtext=getline(v:foldstart)
syn keyword javaScriptFunction function
syn match javaScriptBraces "[{}\[\]]"
syn match javaScriptParens "[()]"
if main_syntax == "javascript"
syn sync fromstart
syn sync maxlines=100
syn sync ccomment javaScriptComment
" Define the default highlighting.
" Only when an item doesn't have highlighting yet
hi def link javaScriptComment Comment
hi def link javaScriptLineComment Comment
hi def link javaScriptCommentTodo Todo
hi def link javaScriptSpecial Special
hi def link javaScriptStringS String
hi def link javaScriptStringD String
hi def link javaScriptStringT String
hi def link javaScriptCharacter Character
hi def link javaScriptSpecialCharacter javaScriptSpecial
hi def link javaScriptNumber javaScriptValue
hi def link javaScriptConditional Conditional
hi def link javaScriptRepeat Repeat
hi def link javaScriptBranch Conditional
hi def link javaScriptOperator Operator
hi def link javaScriptType Type
hi def link javaScriptStatement Statement
hi def link javaScriptFunction Function
hi def link javaScriptBraces Function
hi def link javaScriptError Error
hi def link javaScrParenError javaScriptError
hi def link javaScriptNull Keyword
hi def link javaScriptBoolean Boolean
hi def link javaScriptRegexpString String
hi def link javaScriptIdentifier Identifier
hi def link javaScriptLabel Label
hi def link javaScriptException Exception
hi def link javaScriptMessage Keyword
hi def link javaScriptGlobal Keyword
hi def link javaScriptMember Keyword
hi def link javaScriptDeprecated Exception
hi def link javaScriptReserved Keyword
hi def link javaScriptDebug Debug
hi def link javaScriptConstant Label
hi def link javaScriptEmbed Special
let b:current_syntax = "javascript"
if main_syntax == 'javascript'
unlet main_syntax
let &cpo = s:cpo_save
unlet s:cpo_save
" vim: ts=8
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