path: root/syntax/html.vim

if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'vim') == -1
  
" Vim syntax file
" Language:             HTML
" Maintainer:           Jorge Maldonado Ventura <jorgesumle@freakspot.net>
" Previous Maintainer:  Claudio Fleiner <claudio@fleiner.com>
" Repository:           https://notabug.org/jorgesumle/vim-html-syntax
" Last Change:          2017 Jan 21
"                       included patch from Jorge Maldonado Ventura

" Please check :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 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 label
syn keyword htmlTagName contained colgroup del fieldset iframe ins 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 embed figcaption figure
syn keyword htmlTagName contained footer header hgroup keygen main mark
syn keyword htmlTagName contained menuitem meter nav output picture
syn keyword htmlTagName contained progress rb rp rt rtc ruby section
syn keyword htmlTagName contained slot source template time track video wbr

" 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

" 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 "\<z-index\>"

" 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 allowfullscreen async autocomplete autofocus
syn keyword htmlArg contained autoplay challenge contenteditable contextmenu
syn keyword htmlArg contained controls crossorigin default dirname download
syn keyword htmlArg contained draggable dropzone form formaction formenctype
syn keyword htmlArg contained formmethod formnovalidate formtarget hidden
syn keyword htmlArg contained high icon inputmode keytype kind list loop low
syn keyword htmlArg contained max min minlength muted nonce novalidate open
syn keyword htmlArg contained optimum pattern placeholder poster preload
syn keyword htmlArg contained radiogroup required reversed sandbox spellcheck
syn keyword htmlArg contained sizes srcset srcdoc srclang step title translate
syn keyword htmlArg contained typemustmatch

" special characters
syn match htmlSpecialChar "&#\=[0-9A-Za-z]\{1,8};"

" Comments (the real ones or the old netscape ones)
if exists("html_wrong_comments")
  syn region htmlComment                start=+<!--+    end=+--\s*>+ contains=@Spell
else
  syn region htmlComment                start=+<!+      end=+>+   contains=htmlCommentPart,htmlCommentError,@Spell
  syn match  htmlCommentError contained "[^><!]"
  syn region htmlCommentPart  contained start=+--+      end=+--\s*+  contains=@htmlPreProc,@Spell
endif
syn region htmlComment                  start=+<!DOCTYPE+ keepend end=+>+

" server-parsed commands
syn region htmlPreProc start=+<!--#+ end=+-->+ contains=htmlPreStmt,htmlPreError,htmlPreAttr
syn match htmlPreStmt contained "<!--#\(config\|echo\|exec\|fsize\|flastmod\|include\|printenv\|set\|if\|elif\|else\|endif\|geoguide\)\>"
syn match htmlPreError contained "<!--#\S*"ms=s+4
syn match htmlPreAttr contained "\w\+=[^"]\S\+" contains=htmlPreProcAttrError,htmlPreProcAttrName
syn region htmlPreAttr contained start=+\w\+="+ skip=+\\\\\|\\"+ end=+"+ contains=htmlPreProcAttrName keepend
syn match htmlPreProcAttrError contained "\w\+="he=e-1
syn match htmlPreProcAttrName contained "\(expr\|errmsg\|sizefmt\|timefmt\|var\|cgi\|cmd\|file\|virtual\|value\)="he=e-1

if !exists("html_no_rendering")
  " rendering
  syn cluster htmlTop contains=@Spell,htmlTag,htmlEndTag,htmlSpecialChar,htmlPreProc,htmlComment,htmlLink,javaScript,@htmlPreproc

  syn region htmlBold start="<b\>" end="</b>"me=e-4 contains=@htmlTop,htmlBoldUnderline,htmlBoldItalic
  syn region htmlBold start="<strong\>" end="</strong>"me=e-9 contains=@htmlTop,htmlBoldUnderline,htmlBoldItalic
  syn region htmlBoldUnderline contained start="<u\>" end="</u>"me=e-4 contains=@htmlTop,htmlBoldUnderlineItalic
  syn region htmlBoldItalic contained start="<i\>" end="</i>"me=e-4 contains=@htmlTop,htmlBoldItalicUnderline
  syn region htmlBoldItalic contained start="<em\>" end="</em>"me=e-5 contains=@htmlTop,htmlBoldItalicUnderline
  syn region htmlBoldUnderlineItalic contained start="<i\>" end="</i>"me=e-4 contains=@htmlTop
  syn region htmlBoldUnderlineItalic contained start="<em\>" end="</em>"me=e-5 contains=@htmlTop
  syn region htmlBoldItalicUnderline contained start="<u\>" end="</u>"me=e-4 contains=@htmlTop,htmlBoldUnderlineItalic

  syn region htmlUnderline start="<u\>" end="</u>"me=e-4 contains=@htmlTop,htmlUnderlineBold,htmlUnderlineItalic
  syn region htmlUnderlineBold contained start="<b\>" end="</b>"me=e-4 contains=@htmlTop,htmlUnderlineBoldItalic
  syn region htmlUnderlineBold contained start="<strong\>" end="</strong>"me=e-9 contains=@htmlTop,htmlUnderlineBoldItalic
  syn region htmlUnderlineItalic contained start="<i\>" end="</i>"me=e-4 contains=@htmlTop,htmlUnderlineItalicBold
  syn region htmlUnderlineItalic contained start="<em\>" end="</em>"me=e-5 contains=@htmlTop,htmlUnderlineItalicBold
  syn region htmlUnderlineItalicBold contained start="<b\>" end="</b>"me=e-4 contains=@htmlTop
  syn region htmlUnderlineItalicBold contained start="<strong\>" end="</strong>"me=e-9 contains=@htmlTop
  syn region htmlUnderlineBoldItalic contained start="<i\>" end="</i>"me=e-4 contains=@htmlTop
  syn region htmlUnderlineBoldItalic contained start="<em\>" end="</em>"me=e-5 contains=@htmlTop

  syn region htmlItalic start="<i\>" end="</i>"me=e-4 contains=@htmlTop,htmlItalicBold,htmlItalicUnderline
  syn region htmlItalic start="<em\>" end="</em>"me=e-5 contains=@htmlTop
  syn region htmlItalicBold contained start="<b\>" end="</b>"me=e-4 contains=@htmlTop,htmlItalicBoldUnderline
  syn region htmlItalicBold contained start="<strong\>" end="</strong>"me=e-9 contains=@htmlTop,htmlItalicBoldUnderline
  syn region htmlItalicBoldUnderline contained start="<u\>" end="</u>"me=e-4 contains=@htmlTop
  syn region htmlItalicUnderline contained start="<u\>" end="</u>"me=e-4 contains=@htmlTop,htmlItalicUnderlineBold
  syn region htmlItalicUnderlineBold contained start="<b\>" end="</b>"me=e-4 contains=@htmlTop
  syn region htmlItalicUnderlineBold contained start="<strong\>" end="</strong>"me=e-9 contains=@htmlTop

  syn match htmlLeadingSpace "^\s\+" contained
  syn region htmlLink start="<a\>\_[^>]*\<href\>" end="</a>"me=e-4 contains=@Spell,htmlTag,htmlEndTag,htmlSpecialChar,htmlPreProc,htmlComment,htmlLeadingSpace,javaScript,@htmlPreproc
  syn region htmlH1 start="<h1\>" end="</h1>"me=e-5 contains=@htmlTop
  syn region htmlH2 start="<h2\>" end="</h2>"me=e-5 contains=@htmlTop
  syn region htmlH3 start="<h3\>" end="</h3>"me=e-5 contains=@htmlTop
  syn region htmlH4 start="<h4\>" end="</h4>"me=e-5 contains=@htmlTop
  syn region htmlH5 start="<h5\>" end="</h5>"me=e-5 contains=@htmlTop
  syn region htmlH6 start="<h6\>" end="</h6>"me=e-5 contains=@htmlTop
  syn region htmlHead start="<head\>" end="</head>"me=e-7 end="<body\>"me=e-5 end="<h[1-6]\>"me=e-3 contains=htmlTag,htmlEndTag,htmlSpecialChar,htmlPreProc,htmlComment,htmlLink,htmlTitle,javaScript,cssStyle,@htmlPreproc
  syn region htmlTitle start="<title\>" end="</title>"me=e-8 contains=htmlTag,htmlEndTag,htmlSpecialChar,htmlPreProc,htmlComment,javaScript,@htmlPreproc
endif

syn keyword htmlTagName         contained noscript
syn keyword htmlSpecialTagName  contained script style
if main_syntax != 'java' || exists("java_javascript")
  " JAVA SCRIPT
  syn include @htmlJavaScript syntax/javascript.vim
  unlet b:current_syntax
  syn region  javaScript start=+<script\_[^>]*>+ keepend end=+</script\_[^>]*>+me=s-1 contains=@htmlJavaScript,htmlCssStyleComment,htmlScriptTag,@htmlPreproc
  syn region  htmlScriptTag     contained start=+<script+ end=+>+ fold contains=htmlTagN,htmlString,htmlArg,htmlValue,htmlTagError,htmlEvent
  hi def link htmlScriptTag htmlTag

  " html events (i.e. arguments that include javascript commands)
  if exists("html_extended_events")
    syn region htmlEvent        contained start=+\<on\a\+\s*=[\t ]*'+ end=+'+ contains=htmlEventSQ
    syn region htmlEvent        contained start=+\<on\a\+\s*=[\t ]*"+ end=+"+ contains=htmlEventDQ
  else
    syn region htmlEvent        contained start=+\<on\a\+\s*=[\t ]*'+ end=+'+ keepend contains=htmlEventSQ
    syn region htmlEvent        contained start=+\<on\a\+\s*=[\t ]*"+ end=+"+ keepend contains=htmlEventDQ
  endif
  syn region htmlEventSQ        contained start=+'+ms=s+1 end=+'+me=s-1 contains=@htmlJavaScript
  syn region htmlEventDQ        contained start=+"+ms=s+1 end=+"+me=s-1 contains=@htmlJavaScript
  hi def link htmlEventSQ htmlEvent
  hi def link htmlEventDQ htmlEvent

  " a javascript expression is used as an arg value
  syn region  javaScriptExpression contained start=+&{+ keepend end=+};+ contains=@htmlJavaScript,@htmlPreproc
endif

if main_syntax != 'java' || exists("java_vb")
  " VB SCRIPT
  syn include @htmlVbScript syntax/vb.vim
  unlet b:current_syntax
  syn region  javaScript start=+<script \_[^>]*language *=\_[^>]*vbscript\_[^>]*>+ keepend end=+</script\_[^>]*>+me=s-1 contains=@htmlVbScript,htmlCssStyleComment,htmlScriptTag,@htmlPreproc
endif

syn cluster htmlJavaScript      add=@htmlPreproc

if main_syntax != 'java' || exists("java_css")
  " embedded style sheets
  syn keyword htmlArg           contained media
  syn include @htmlCss syntax/css.vim
  unlet b:current_syntax
  syn region cssStyle start=+<style+ keepend end=+</style>+ contains=@htmlCss,htmlTag,htmlEndTag,htmlCssStyleComment,@htmlPreproc
  syn match htmlCssStyleComment 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 "<script"
  syn sync match htmlHighlightSkip "^.*['\"].*$"
  syn sync minlines=10
endif

" The default highlighting.
hi def link htmlTag                     Function
hi def link htmlEndTag                  Identifier
hi def link htmlArg                     Type
hi def link htmlTagName                 htmlStatement
hi def link htmlSpecialTagName          Exception
hi def link htmlValue                     String
hi def link htmlSpecialChar             Special

if !exists("html_no_rendering")
  hi def link htmlH1                      Title
  hi def link htmlH2                      htmlH1
  hi def link htmlH3                      htmlH2
  hi def link htmlH4                      htmlH3
  hi def link htmlH5                      htmlH4
  hi def link htmlH6                      htmlH5
  hi def link htmlHead                    PreProc
  hi def link htmlTitle                   Title
  hi def link htmlBoldItalicUnderline     htmlBoldUnderlineItalic
  hi def link htmlUnderlineBold           htmlBoldUnderline
  hi def link htmlUnderlineItalicBold     htmlBoldUnderlineItalic
  hi def link htmlUnderlineBoldItalic     htmlBoldUnderlineItalic
  hi def link htmlItalicUnderline         htmlUnderlineItalic
  hi def link htmlItalicBold              htmlBoldItalic
  hi def link htmlItalicBoldUnderline     htmlBoldUnderlineItalic
  hi def link htmlItalicUnderlineBold     htmlBoldUnderlineItalic
  hi def link htmlLink                    Underlined
  hi def link htmlLeadingSpace            None
  if !exists("html_my_rendering")
    hi def htmlBold                term=bold cterm=bold gui=bold
    hi def htmlBoldUnderline       term=bold,underline cterm=bold,underline gui=bold,underline
    hi def htmlBoldItalic          term=bold,italic cterm=bold,italic gui=bold,italic
    hi def htmlBoldUnderlineItalic term=bold,italic,underline cterm=bold,italic,underline gui=bold,italic,underline
    hi def htmlUnderline           term=underline cterm=underline gui=underline
    hi def htmlUnderlineItalic     term=italic,underline cterm=italic,underline gui=italic,underline
    hi def htmlItalic              term=italic cterm=italic gui=italic
  endif
endif

hi def link htmlPreStmt            PreProc
hi def link htmlPreError           Error
hi def link htmlPreProc            PreProc
hi def link htmlPreAttr            String
hi def link htmlPreProcAttrName    PreProc
hi def link htmlPreProcAttrError   Error
hi def link htmlSpecial            Special
hi def link htmlSpecialChar        Special
hi def link htmlString             String
hi def link htmlStatement          Statement
hi def link htmlComment            Comment
hi def link htmlCommentPart        Comment
hi def link htmlValue              String
hi def link htmlCommentError       htmlError
hi def link htmlTagError           htmlError
hi def link htmlEvent              javaScript
hi def link htmlError              Error

hi def link javaScript             Special
hi def link javaScriptExpression   javaScript
hi def link htmlCssStyleComment    Comment
hi def link htmlCssDefinition      Special

let b:current_syntax = "html"

if main_syntax == 'html'
  unlet main_syntax
endif

let &cpo = s:cpo_save
unlet s:cpo_save
" vim: ts=8

endif
if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'html5') == -1
  
" Vim syntax file
" Language:     HTML (version 5.1)
"               SVG (SVG 1.1 Second Edition)
"               MathML (MathML 3.0 Second Edition)
" Last Change:  2017 Mar 07
" License:      Public domain
"               (but let me know if you like :) )
"
" Note: This file just add new tags from HTML 5
"       and don't replace default html.vim syntax file
"
" Maintainer:   Kao, Wei-Ko(othree) ( othree AT gmail DOT com )
" Changes:      update to Draft 2016 Jan 13
"               add microdata Attributes
" Maintainer:   Rodrigo Machado <rcmachado@gmail.com>
" URL:          http://rm.blog.br/vim/syntax/html.vim
" Modified:     htdebeer <H.T.de.Beer@gmail.com>
" Changes:      add common SVG elements and attributes for inline SVG

" Patch 7.4.1142
if has("patch-7.4-1142")
  if has("win32")
    syn iskeyword @,48-57,_,128-167,224-235,-
  else
    syn iskeyword @,48-57,_,192-255,-
  endif
endif

" HTML 5 tags
syn keyword htmlTagName contained article aside audio canvas command
syn keyword htmlTagName contained datalist details dialog embed figcaption figure footer
syn keyword htmlTagName contained header hgroup keygen main mark meter menu menuitem nav output
syn keyword htmlTagName contained progress ruby rt rp rb rtc section source summary time track video data
syn keyword htmlTagName contained template content shadow
syn keyword htmlTagName contained wbr bdi
syn keyword htmlTagName contained picture

" SVG tags
" http://www.w3.org/TR/SVG/
" as found in http://www.w3.org/TR/SVG/eltindex.html
syn keyword htmlTagName contained svg 
syn keyword htmlTagName contained altGlyph altGlyphDef altGlyphItem 
syn keyword htmlTagName contained animate animateColor animateMotion animateTransform 
syn keyword htmlTagName contained circle ellipse rect line polyline polygon image path
syn keyword htmlTagName contained clipPath color-profile cursor 
syn keyword htmlTagName contained defs desc g symbol view use switch foreignObject
syn keyword htmlTagName contained filter feBlend feColorMatrix feComponentTransfer feComposite feConvolveMatrix feDiffuseLighting feDisplacementMap feDistantLight feFlood feFuncA feFuncB feFuncG feFuncR feGaussianBlur feImage feMerge feMergeNode feMorphology feOffset fePointLight feSpecularLighting feSpotLight feTile feTurbulence 
syn keyword htmlTagName contained font font-face font-face-format font-face-name font-face-src font-face-uri 
syn keyword htmlTagName contained glyph glyphRef hkern 
syn keyword htmlTagName contained linearGradient marker mask pattern radialGradient set stop
syn keyword htmlTagName contained missing-glyph mpath 
syn keyword htmlTagName contained text textPath tref tspan vkern
syn keyword htmlTagName contained metadata title

" MathML tags
" https://www.w3.org/TR/MathML3/appendixi.html#index.elem
syn keyword htmlTagName contained abs and annotation annotation-xml apply approx arccos arccosh arccot arccoth
syn keyword htmlTagName contained arccsc arccsch arcsec arcsech arcsin arcsinh arctan arctanh arg bind
syn keyword htmlTagName contained bvar card cartesianproduct cbytes ceiling cerror ci cn codomain complexes
syn keyword htmlTagName contained compose condition conjugate cos cosh cot coth cs csc csch
syn keyword htmlTagName contained csymbol curl declare degree determinant diff divergence divide domain domainofapplication
syn keyword htmlTagName contained emptyset eq equivalent eulergamma exists exp exponentiale factorial factorof false
syn keyword htmlTagName contained floor fn forall gcd geq grad gt ident image imaginary
syn keyword htmlTagName contained imaginaryi implies in infinity int integers intersect interval inverse lambda
syn keyword htmlTagName contained laplacian lcm leq limit list ln log logbase lowlimit lt
syn keyword htmlTagName contained maction maligngroup malignmark math matrix matrixrow max mean median menclose
syn keyword htmlTagName contained merror mfenced mfrac mglyph mi mi" min minus mlabeledtr mlongdiv
syn keyword htmlTagName contained mmultiscripts mn mo mode moment momentabout mover mpadded mphantom mprescripts
syn keyword htmlTagName contained mroot mrow ms mscarries mscarry msgroup msline mspace msqrt msrow
syn keyword htmlTagName contained mstack mstyle msub msubsup msup mtable mtd mtext mtr munder
syn keyword htmlTagName contained munderover naturalnumbers neq none not notanumber notin notprsubset notsubset or
syn keyword htmlTagName contained otherwise outerproduct partialdiff pi piece piecewise plus power primes product
syn keyword htmlTagName contained prsubset quotient rationals real reals reln rem root scalarproduct sdev
syn keyword htmlTagName contained sec sech selector semantics sep set setdiff share sin sinh
syn keyword htmlTagName contained span subset sum tan tanh tendsto times transpose true union
syn keyword htmlTagName contained uplimit variance vector vectorproduct xor

" Custom Element
syn match htmlTagName contained "\<[a-z][-.0-9_a-z]*-[-.0-9_a-z]*\>"

" HTML 5 arguments
" Core Attributes
syn keyword htmlArg contained accesskey class contenteditable contextmenu dir 
syn keyword htmlArg contained draggable hidden id is lang spellcheck style tabindex title translate
" Event-handler Attributes
syn keyword htmlArg contained onabort onblur oncanplay oncanplaythrough onchange
syn keyword htmlArg contained onclick oncontextmenu ondblclick ondrag ondragend ondragenter ondragleave ondragover 
syn keyword htmlArg contained ondragstart ondrop ondurationchange onemptied onended onerror onfocus onformchange 
syn keyword htmlArg contained onforminput oninput oninvalid onkeydown onkeypress onkeyup onload onloadeddata 
syn keyword htmlArg contained onloadedmetadata onloadstart onmousedown onmousemove onmouseout onmouseover onmouseup
syn keyword htmlArg contained onmousewheel onpause onplay onplaying onprogress onratechange onreadystatechange 
syn keyword htmlArg contained onscroll onseeked onseeking onselect onshow onstalled onsubmit onsuspend ontimeupdate 
syn keyword htmlArg contained onvolumechange onwaiting
" XML Attributes
syn keyword htmlArg contained xml:lang xml:space xml:base xmlns
" new features
" <body>
syn keyword htmlArg contained onafterprint onbeforeprint onbeforeunload onblur onerror onfocus onhashchange onload 
syn keyword htmlArg contained onmessage onoffline ononline onpopstate onredo onresize onstorage onundo onunload
" <video>, <audio>, <source>, <track>
syn keyword htmlArg contained autoplay preload controls loop poster media kind charset srclang track playsinline
" <form>, <input>, <button>
syn keyword htmlArg contained form autocomplete autofocus list min max step
syn keyword htmlArg contained formaction autofocus formenctype formmethod formtarget formnovalidate
syn keyword htmlArg contained required placeholder pattern
" <command>, <details>, <time>
syn keyword htmlArg contained label icon open datetime-local pubdate
" <script>
syn keyword htmlArg contained async
" <content>
syn keyword htmlArg contained select
" <iframe>
syn keyword htmlArg contained seamless srcdoc sandbox allowfullscreen allowusermedia allowpaymentrequest 
" <picture>
syn keyword htmlArg contained srcset sizes
" <a>
syn keyword htmlArg contained download media
" <script>, <style>
syn keyword htmlArg contained nonce
" <area>, <a>, <img>, <iframe>, <link>
syn keyword htmlArg contained referrerpolicy
" https://w3c.github.io/webappsec-subresource-integrity/#the-integrity-attribute
syn keyword htmlArg contained integrity crossorigin
" <link>
syn keyword htmlArg contained prefetch 
" syn keyword htmlArg contained preload

" Custom Data Attributes
" http://w3c.github.io/html/single-page.html#embedding-custom-non-visible-data-with-the-data-attributes
syn match   htmlArg "\<data[-.0-9_a-z]*-[-.0-9_a-z]*\>" contained

" Vendor Extension Attributes
" http://w3c.github.io/html/single-page.html#conformance-requirements-extensibility
syn match   htmlArg "\<x[-.0-9_a-z]*-[-.0-9_a-z]*\>" contained

" Microdata
" http://dev.w3.org/html5/md/
syn keyword htmlArg contained itemid itemscope itemtype itemprop itemref

" SVG
" http://www.w3.org/TR/SVG/
" Some common attributes from http://www.w3.org/TR/SVG/attindex.html
syn keyword htmlArg contained accent-height accumulate additive alphabetic amplitude arabic-form ascent attributeName attributeType azimuth 
syn keyword htmlArg contained baseFrequency baseProfile bbox begin bias by 
syn keyword htmlArg contained calcMode cap-height class clipPathUnits contentScriptType contentStyleType cx cy 
syn keyword htmlArg contained d descent diffuseConstant divisor dur dx dy 
syn keyword htmlArg contained edgeMode elevation end exponent externalResourcesRequired 
syn keyword htmlArg contained fill filterRes filterUnits font-family font-size font-stretch font-style font-variant font-weight format format from fx fy 
syn keyword htmlArg contained g1 g2 glyph-name glyphRef gradientTransform gradientUnits 
syn keyword htmlArg contained hanging height horiz-adv-x horiz-origin-x horiz-origin-y 
syn keyword htmlArg contained id ideographic in in2 intercept 
syn keyword htmlArg contained k k1 k2 k3 k4 kernelMatrix kernelUnitLength keyPoints keySplines keyTimes 
syn keyword htmlArg contained lang lengthAdjust limitingConeAngle local 
syn keyword htmlArg contained markerHeight markerUnits markerWidth maskContentUnits maskUnits mathematical max media method min mode name 
syn keyword htmlArg contained numOctaves 
syn keyword htmlArg contained offset onabort onactivate onbegin onclick onend onerror onfocusin onfocusout onload onmousedown onmousemove onmouseout onmouseover onmouseup onrepeat onresize onscroll onunload onzoom operator order orient orientation origin overline-position overline-thickness 
syn keyword htmlArg contained panose-1 path pathLength patternContentUnits patternTransform patternUnits points pointsAtX pointsAtY pointsAtZ preserveAlpha preserveAspectRatio primitiveUnits 
syn keyword htmlArg contained r radius refX refY rendering-intent repeatCount repeatDur requiredExtensions requiredFeatures restart result rotate rx ry 
syn keyword htmlArg contained scale seed slope spacing specularConstant specularExponent spreadMethod startOffset stdDeviation stemh stemv stitchTiles strikethrough-position strikethrough-thickness string surfaceScale systemLanguage 
syn keyword htmlArg contained tableValues target targetX targetY textLength title to transform type
syn keyword htmlArg contained u1 u2 underline-position underline-thickness unicode unicode-range units-per-em 
syn keyword htmlArg contained v-alphabetic v-hanging v-ideographic v-mathematical values version vert-adv-y vert-origin-x vert-origin-y viewBox viewTarget 
syn keyword htmlArg contained width widths 
syn keyword htmlArg contained x x-height x1 x2 xChannelSelector xlink:actuate xlink:actuate xlink:arcrole xlink:href xlink:role xlink:show xlink:title xlink:type xml:base xml:lang xml:space 
syn keyword htmlArg contained y y1 y2 yChannelSelector 
syn keyword htmlArg contained z zoomAndPan 
syn keyword htmlArg contained alignment-baseline baseline-shift clip-path clip-rule clip color-interpolation-filters color-interpolation color-profile color-rendering color cursor direction display dominant-baseline enable-background fill-opacity fill-rule fill filter flood-color flood-opacity font-family font-size-adjust font-size font-stretch font-style font-variant font-weight glyph-orientation-horizontal glyph-orientation-vertical image-rendering kerning letter-spacing lighting-color marker-end marker-mid marker-start mask opacity overflow pointer-events shape-rendering stop-color stop-opacity stroke-dasharray stroke-dashoffset stroke-linecap stroke-linejoin stroke-miterlimit stroke-opacity stroke-width stroke text-anchor text-decoration text-rendering unicode-bidi visibility word-spacing writing-mode

" MathML attributes
" https://www.w3.org/TR/MathML3/chapter2.html#interf.toplevel.atts
syn keyword htmlArg contained accent accentunder actiontype align alignmentscope altimg altimg-height altimg-valign altimg-width alttext
syn keyword htmlArg contained annotation-xml background base baseline bevelled cd cdgroup charalign charspacing close
syn keyword htmlArg contained closure color columnalign columnalignment columnlines columnspacing columnspan columnwidth crossout decimalpoint
syn keyword htmlArg contained definitionURL denomalign depth display displaystyle edge encoding equalcolumns equalrows fence
syn keyword htmlArg contained fontfamily fontsize fontstyle fontweight form frame framespacing groupalign height indentalign
syn keyword htmlArg contained indentalignfirst indentalignlast indentshift indentshiftfirst indentshiftlast indenttarget index infixlinebreakstyle integer largeop
syn keyword htmlArg contained leftoverhang length linebreak linebreakmultchar linebreakstyle lineleading linethickness location longdivstyle lquote
syn keyword htmlArg contained lspace ltr macros math mathbackground mathcolor mathsize mathvariant maxsize maxwidth
syn keyword htmlArg contained mediummathspace menclose minlabelspacing minsize mode movablelimits msgroup mslinethickness name nargs
syn keyword htmlArg contained newline notation numalign number occurrence open order other overflow position
syn keyword htmlArg contained rightoverhang role rowalign rowlines rowspacing rowspan rquote rspace schemaLocation scope
syn keyword htmlArg contained scriptlevel scriptminsize scriptsize scriptsizemultiplier selection separator separators shift side stackalign
syn keyword htmlArg contained stretchy subscriptshift superscriptshift symmetric thickmathspace thinmathspace type valign verythickmathspace verythinmathspace
syn keyword htmlArg contained veryverythickmathspace veryverythinmathspace voffset width xref


endif