" Vim syntax file
" Language: HTML
" Maintainer: Doug Kearns
" Previous Maintainers: Jorge Maldonado Ventura
" Claudio Fleiner
" Last Change: 2023 Nov 28
" See :help html.vim for some comments and a description of the options
" quit when a syntax file was already loaded
if !exists("main_syntax")
if exists("b:current_syntax")
finish
endif
let main_syntax = 'html'
endif
let s:cpo_save = &cpo
set cpo&vim
syntax spell toplevel
syn include @htmlXml syntax/xml.vim
unlet b:current_syntax
syn case ignore
" mark illegal characters
syn match htmlError "[<>&]"
" tags
syn region htmlString contained start=+"+ end=+"+ contains=htmlSpecialChar,javaScriptExpression,@htmlPreproc
syn region htmlString contained start=+'+ end=+'+ contains=htmlSpecialChar,javaScriptExpression,@htmlPreproc
syn match htmlValue contained "=[\t ]*[^'" \t>][^ \t>]*"hs=s+1 contains=javaScriptExpression,@htmlPreproc
syn region htmlEndTag start=++ end=+>+ contains=htmlTagN,htmlTagError
syn region htmlTag start=+<[^/]+ end=+>+ fold contains=htmlTagN,htmlString,htmlArg,htmlValue,htmlTagError,htmlEvent,htmlCssDefinition,@htmlPreproc,@htmlArgCluster
syn match htmlTagN contained +<\s*[-a-zA-Z0-9]\++hs=s+1 contains=htmlTagName,htmlSpecialTagName,@htmlTagNameCluster
syn match htmlTagN contained +\s*[-a-zA-Z0-9]\++hs=s+2 contains=htmlTagName,htmlSpecialTagName,@htmlTagNameCluster
syn match htmlTagError contained "[^>]<"ms=s+1
" tag names
syn keyword htmlTagName contained address applet area a base basefont
syn keyword htmlTagName contained big blockquote br caption center
syn keyword htmlTagName contained cite code dd dfn dir div dl dt font
syn keyword htmlTagName contained form hr html img
syn keyword htmlTagName contained input isindex kbd li link map menu
syn keyword htmlTagName contained meta ol option param pre p samp span
syn keyword htmlTagName contained select small strike sub sup
syn keyword htmlTagName contained table td textarea th tr tt ul var xmp
syn match htmlTagName contained "\<\%(b\|i\|u\|h[1-6]\|em\|strong\|head\|body\|title\)\>"
" new html 4.0 tags
syn keyword htmlTagName contained abbr acronym bdo button col colgroup
syn keyword htmlTagName contained del fieldset iframe ins label legend
syn keyword htmlTagName contained object optgroup q s tbody tfoot thead
" new html 5 tags
syn keyword htmlTagName contained article aside audio bdi canvas data
syn keyword htmlTagName contained datalist details dialog embed figcaption
syn keyword htmlTagName contained figure footer header hgroup keygen main
syn keyword htmlTagName contained mark menuitem meter nav output picture
syn keyword htmlTagName contained progress rb rp rt rtc ruby search section
syn keyword htmlTagName contained slot source summary template time track
syn keyword htmlTagName contained video wbr
" svg and math tags
syn keyword htmlMathTagName contained math
syn keyword htmlSvgTagName contained svg
syn region htmlMath start="" contains=@htmlXml transparent keepend
syn region htmlSvg start="" contains=@htmlXml transparent keepend
syn cluster xmlTagHook add=htmlMathTagName,htmlSvgTagName
" legal arg names
syn keyword htmlArg contained action
syn keyword htmlArg contained align alink alt archive background bgcolor
syn keyword htmlArg contained border bordercolor cellpadding
syn keyword htmlArg contained cellspacing checked class clear code codebase color
syn keyword htmlArg contained cols colspan content coords enctype face
syn keyword htmlArg contained gutter height hspace id
syn keyword htmlArg contained link lowsrc marginheight
syn keyword htmlArg contained marginwidth maxlength method name prompt
syn keyword htmlArg contained rel rev rows rowspan scrolling selected shape
syn keyword htmlArg contained size src start target text type url
syn keyword htmlArg contained usemap ismap valign value vlink vspace width wrap
syn match htmlArg contained "\<\%(http-equiv\|href\|title\)="me=e-1
syn keyword htmlArg contained role
" ARIA attributes {{{1
let s:aria =<< trim END
activedescendant
atomic
autocomplete
braillelabel
brailleroledescription
busy
checked
colcount
colindex
colindextext
colspan
controls
current
describedby
description
details
disabled
errormessage
expanded
flowto
haspopup
hidden
invalid
keyshortcuts
label
labelledby
level
live
modal
multiline
multiselectable
orientation
owns
placeholder
posinset
pressed
readonly
relevant
required
roledescription
rowcount
rowindex
rowindextext
rowspan
selected
setsize
sort
valuemax
valuemin
valuenow
valuetext
END
let s:aria_deprecated =<< trim END
dropeffect
grabbed
END
call extend(s:aria, s:aria_deprecated)
exe 'syn match htmlArg contained "\%#=1\join('\|') .. '\)\>"'
unlet s:aria s:aria_deprecated
" }}}
" Netscape extensions
syn keyword htmlTagName contained frame noframes frameset nobr blink
syn keyword htmlTagName contained layer ilayer nolayer spacer
syn keyword htmlArg contained frameborder noresize pagex pagey above below
syn keyword htmlArg contained left top visibility clip id noshade
syn match htmlArg contained "\"
" Microsoft extensions
syn keyword htmlTagName contained marquee
" html 4.0 arg names
syn match htmlArg contained "\<\%(accept-charset\|label\)\>"
syn keyword htmlArg contained abbr accept accesskey axis char charoff charset
syn keyword htmlArg contained cite classid codetype compact data datetime
syn keyword htmlArg contained declare defer dir disabled for frame
syn keyword htmlArg contained headers hreflang lang language longdesc
syn keyword htmlArg contained multiple nohref nowrap object profile readonly
syn keyword htmlArg contained rules scheme scope span standby style
syn keyword htmlArg contained summary tabindex valuetype version
" html 5 arg names
syn keyword htmlArg contained allow autocapitalize as blocking decoding
syn keyword htmlArg contained enterkeyhint imagesizes imagesrcset inert
syn keyword htmlArg contained integrity is itemid itemprop itemref itemscope
syn keyword htmlArg contained itemtype loading nomodule ping playsinline
syn keyword htmlArg contained referrerpolicy slot allowfullscreen async
syn keyword htmlArg contained autocomplete autofocus autoplay challenge
syn keyword htmlArg contained contenteditable contextmenu controls crossorigin
syn keyword htmlArg contained default dirname download draggable dropzone form
syn keyword htmlArg contained formaction formenctype formmethod formnovalidate
syn keyword htmlArg contained formtarget hidden high icon inputmode keytype
syn keyword htmlArg contained kind list loop low max min minlength muted nonce
syn keyword htmlArg contained novalidate open optimum pattern placeholder
syn keyword htmlArg contained poster preload radiogroup required reversed
syn keyword htmlArg contained sandbox spellcheck sizes srcset srcdoc srclang
syn keyword htmlArg contained step title translate typemustmatch
syn match htmlArg contained "\+ contains=@Spell
else
" The HTML 5.2 syntax 8.2.4.41: bogus comment is parser error; browser skips until next >
syn region htmlComment start=++ contains=htmlCommentError keepend
" Idem 8.2.4.42,51: Comment starts with
" Idem 8.2.4.43,44: Except and are parser errors
" Idem 8.2.4.52: dash-dash-bang (--!>) is error ignored by parser, also closes comment
syn region htmlComment matchgroup=htmlComment start=+ is all right
syn match htmlCommentNested contained "\@!"
syn match htmlCommentError contained "[^>+ keepend
" server-parsed commands
syn region htmlPreProc start=++ contains=htmlPreStmt,htmlPreError,htmlPreAttr
syn match htmlPreStmt contained "\)"
syn region htmlCssDefinition matchgroup=htmlArg start='style="' keepend matchgroup=htmlString end='"' contains=css.*Attr,css.*Prop,cssComment,cssLength,cssColor,cssURL,cssImportant,cssError,cssString,@htmlPreproc
hi def link htmlStyleArg htmlString
endif
if main_syntax == "html"
" synchronizing (does not always work if a comment includes legal
" html tags, but doing it right would mean to always start
" at the first line, which is too slow)
syn sync match htmlHighlight groupthere NONE "<[/a-zA-Z]"
syn sync match htmlHighlight groupthere javaScript "