WEB-49285 Update HTML5 specs

GitOrigin-RevId: c715dfcb07568f89379e4617b6e5dce74236407e
2026-02-04 23:39:07 +07:00 · 2021-03-10 13:09:57 +01:00
parent fe7577a03a
commit cd47e231e0
24 changed files with 343 additions and 215 deletions
--- a/xml/relaxng/src/resources/html5-schema/html5-svg-mathml.rnc
+++ b/xml/relaxng/src/resources/html5-schema/html5-svg-mathml.rnc
@@ -8,6 +8,11 @@ common.elem.phrasing |= svg

 common.elem.phrasing |= math

+math.attributes &=
+	(	common.attrs.aria.role.math
+	|	common.attrs.aria.implicit.math
+	)?
+
 SVG.foreignObject.content |=
 	(	math
 	|	common.inner.flow
--- a/xml/relaxng/src/resources/html5-schema/html5/applications.rnc
+++ b/xml/relaxng/src/resources/html5-schema/html5/applications.rnc
@@ -98,18 +98,7 @@ datatypes w = "http://whattf.org/datatype-draft"
 		(	common.attrs
 		&	dialog.attrs.open?
 		&	(	common.attrs.aria.implicit.dialog
-			|	common.attrs.aria.role.alert
 			|	common.attrs.aria.role.alertdialog
-			|	common.attrs.aria.role.application
-			|	common.attrs.aria.role.contentinfo
-			|	common.attrs.aria.role.dialog
-			|	common.attrs.aria.role.log
-			|	common.attrs.aria.role.marquee
-			|	common.attrs.aria.role.region
-			|	common.attrs.aria.role.status
-			|	common.attrs.aria.landmark.document
-			|	common.attrs.aria.landmark.main
-			|	common.attrs.aria.landmark.search
 			)?
 		)
 		dialog.attrs.open =
@@ -126,12 +115,14 @@ datatypes w = "http://whattf.org/datatype-draft"
 		element menu { menu.inner & menu.attrs }
 	menu.attrs =
 		(	common.attrs
-		&	(	common.attrs.aria.implicit.toolbar
+		&	(	common.attrs.aria.implicit.list
 			|	common.attrs.aria.role.directory
+			|	common.attrs.aria.role.group
 			|	common.attrs.aria.role.list
 			|	common.attrs.aria.role.listbox
 			|	common.attrs.aria.role.menu
 			|	common.attrs.aria.role.menubar
+			|	common.attrs.aria.role.radiogroup
 			|	common.attrs.aria.role.tablist
 			|	common.attrs.aria.role.toolbar
 			|	common.attrs.aria.role.tree
@@ -226,11 +217,11 @@ datatypes w = "http://whattf.org/datatype-draft"
 		)
 	summary.inner =
 		(	common.inner.phrasing
-		|	h1.elem
-		|	h2.elem
-		|	h3.elem
-		|	h4.elem
-		|	h5.elem
-		|	h6.elem
-		|	hgroup.elem
+		&	h1.elem?
+		&	h2.elem?
+		&	h3.elem?
+		&	h4.elem?
+		&	h5.elem?
+		&	h6.elem?
+		&	hgroup.elem?
 		)
--- a/xml/relaxng/src/resources/html5-schema/html5/aria.rnc
+++ b/xml/relaxng/src/resources/html5-schema/html5/aria.rnc
@@ -104,6 +104,9 @@ common.attrs.aria.implicit.listitem |=
 	&	aria.state.expanded?
 	)

+common.attrs.aria.implicit.math |=
+	(	aria.state.expanded? )
+
 common.attrs.aria.implicit.option |=
 	(	aria.prop.posinset?
 	&	aria.prop.setsize?
@@ -146,6 +149,14 @@ common.attrs.aria.implicit.searchbox |=
 	&	aria.prop.required?
 	)

+common.attrs.aria.implicit.separator |=
+	(	aria.prop.valuemax?
+	&	aria.prop.valuemin?
+	&	aria.prop.valuenow?
+	&	aria.prop.valuetext?
+	&	aria.prop.orientation?
+	)
+
 common.attrs.aria.implicit.slider |=
 	(	aria.prop.valuemax?
 	&	aria.prop.valuemin?
@@ -276,34 +287,9 @@ common.attrs.aria.implicit.navigation |= common.attrs.aria.implicit.landmark
 ## dropeffect
 	aria.state.dropeffect =
 		attribute aria-dropeffect
-			{	token "none" #default
-			| token "popup"
-			| token "execute"
-			|	list 
-				{	( string "copy" )
-				,	( string "execute" )?
-				}
-			|	list 
-				{	( string "move" )
-				,	( string "execute" )?
-				}
-			|	list 
-				{	( string "link" )
-				,	( string "execute" )?
-				}
-			|	list 
-				{	( string "execute" )
-				,	( string "copy" )
-				}
-			|	list 
-				{	( string "execute" )
-				,	( string "move" )
-				}
-			|	list 
-				{	( string "execute" )
-				,	( string "link" )
-				}
-			}
+			{	
+				list { ("copy" | "execute" | "link" | "move" | "none" | "popup") + } 
+		}

 ## expanded
 	aria.state.expanded =
@@ -1047,6 +1033,7 @@ common.attrs.aria.implicit.navigation |= common.attrs.aria.implicit.landmark
 			attribute role { string "math" }
 	
 	common.attrs.aria |= aria.math
+	common.attrs.aria.role.math |= aria.math

 ## menu
 	aria.menu =
@@ -1292,6 +1279,7 @@ common.attrs.aria.implicit.navigation |= common.attrs.aria.implicit.landmark
 			attribute role { string "scrollbar" }

 	common.attrs.aria |= aria.scrollbar
+	common.attrs.aria.role.scrollbar |= aria.scrollbar

 ## search
 	aria.search =
--- a/xml/relaxng/src/resources/html5-schema/html5/block.rnc
+++ b/xml/relaxng/src/resources/html5-schema/html5/block.rnc
@@ -26,7 +26,8 @@ datatypes w = "http://whattf.org/datatype-draft"
 		element hr { hr.inner & hr.attrs }
 	hr.attrs =
 		(	common.attrs
-		&	(	common.attrs.aria.role.separator
+		&	(	common.attrs.aria.implicit.separator
+			|	common.attrs.aria.role.separator
 			|	common.attrs.aria.role.presentation
 			|	common.attrs.aria.role.doc-pagebreak
 			)?
@@ -279,4 +280,11 @@ datatypes w = "http://whattf.org/datatype-draft"
 		)
 	legend.inner =
 		(	common.inner.phrasing
+		&	h1.elem?
+		&	h2.elem?
+		&	h3.elem?
+		&	h4.elem?
+		&	h5.elem?
+		&	h6.elem?
+		&	hgroup.elem?
 		)
--- a/xml/relaxng/src/resources/html5-schema/html5/common.rnc
+++ b/xml/relaxng/src/resources/html5-schema/html5/common.rnc
@@ -477,7 +477,6 @@ common.attrs.aria.role.cell |= ( notAllowed )
 common.attrs.aria.role.checkbox = ( notAllowed )
 common.attrs.aria.role.combobox = ( notAllowed )
 common.attrs.aria.role.complementary = ( notAllowed )
-common.attrs.aria.role.contentinfo = ( notAllowed )
 common.attrs.aria.role.dialog = ( notAllowed )
 common.attrs.aria.role.directory = ( notAllowed )
 common.attrs.aria.role.document = ( notAllowed )
@@ -498,7 +497,6 @@ common.attrs.aria.role.menubar = ( notAllowed )
 common.attrs.aria.role.menuitem = ( notAllowed )
 common.attrs.aria.role.menuitemcheckbox = ( notAllowed )
 common.attrs.aria.role.menuitemradio = ( notAllowed )
-common.attrs.aria.role.note = ( notAllowed )
 common.attrs.aria.role.option = ( notAllowed )
 common.attrs.aria.role.presentation = ( notAllowed )
 common.attrs.aria.role.progressbar = ( notAllowed )
@@ -543,6 +541,7 @@ common.attrs.aria.implicit.list = ( notAllowed )
 common.attrs.aria.implicit.listbox = ( notAllowed )
 common.attrs.aria.implicit.listitem = ( notAllowed )
 common.attrs.aria.implicit.main = ( notAllowed )
+common.attrs.aria.implicit.math |= ( notAllowed )
 common.attrs.aria.implicit.navigation = ( notAllowed )
 common.attrs.aria.implicit.option = ( notAllowed )
 common.attrs.aria.implicit.progressbar = ( notAllowed )
@@ -553,6 +552,7 @@ common.attrs.aria.implicit.rowgroup |= ( notAllowed )
 common.attrs.aria.implicit.searchbox |= ( notAllowed )
 common.attrs.aria.implicit.section = ( notAllowed )
 common.attrs.aria.implicit.select = ( notAllowed )
+common.attrs.aria.implicit.separator = ( notAllowed )
 common.attrs.aria.implicit.slider = ( notAllowed )
 common.attrs.aria.implicit.spinbutton = ( notAllowed )
 common.attrs.aria.implicit.status = ( notAllowed )
--- a/xml/relaxng/src/resources/html5-schema/html5/core-scripting.rnc
+++ b/xml/relaxng/src/resources/html5-schema/html5/core-scripting.rnc
@@ -19,9 +19,6 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	script.attrs.integrity?
 		&	embedded.content.attrs.crossorigin?
 		&	referrerpolicy?
-		&	(	common.attrs.aria.role.presentation
-			|	common.attrs.aria.role.menuitem
-			)?
 		)
 	script.elem.imported =
 		element script { script.inner.imported & script.attrs.imported }
@@ -37,9 +34,6 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	script.attrs.integrity?
 		&	embedded.content.attrs.crossorigin?
 		&	referrerpolicy?
-		&	(	common.attrs.aria.role.presentation
-			|	common.attrs.aria.role.menuitem
-			)?
 		)
 		script.attrs.src =
 			attribute src {
@@ -108,11 +102,7 @@ datatypes w = "http://whattf.org/datatype-draft"
 	noscript.inner.flow =
 		( common.inner.flow )
 	noscript.attrs =
-		(	common.attrs
-		&	(	common.attrs.aria.role.presentation
-			|	common.attrs.aria.role.menuitem
-			)?
-		)
+		( common.attrs )

 	common.elem.metadata |= noscript.elem.head
 	common.elem.phrasing |= noscript.elem.phrasing
@@ -123,8 +113,7 @@ datatypes w = "http://whattf.org/datatype-draft"

 	common.attrs.scripting &=
 		(	scripting.attr.onabort?
-		&	scripting.attr.onautocomplete?
-		&	scripting.attr.onautocompleteerror?
+		&	scripting.attr.onauxclick?
 		&	scripting.attr.onblur?
 		&	scripting.attr.oncancel?
 		&	scripting.attr.oncanplay?
@@ -132,13 +121,14 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	scripting.attr.onchange?
 		&	scripting.attr.onclick?
 		&	scripting.attr.onclose?
-		&	scripting.attr.oncuechange?
 		&	scripting.attr.oncontextmenu?
+		&	scripting.attr.oncopy?
+		&	scripting.attr.oncuechange?
+		&	scripting.attr.oncut?
 		&	scripting.attr.ondblclick?
 		&	scripting.attr.ondrag?
 		&	scripting.attr.ondragend?
 		&	scripting.attr.ondragenter?
-		&	scripting.attr.ondragexit?
 		&	scripting.attr.ondragleave?
 		&	scripting.attr.ondragover?
 		&	scripting.attr.ondragstart?
@@ -150,6 +140,7 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	scripting.attr.onfocus?
 		&	scripting.attr.onfocusin?
 		&	scripting.attr.onfocusout?
+		&	scripting.attr.onformdata?
 		&	scripting.attr.oninput?
 		&	scripting.attr.oninvalid?
 		&	scripting.attr.onkeydown?
@@ -166,7 +157,7 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	scripting.attr.onmouseout?
 		&	scripting.attr.onmouseover?
 		&	scripting.attr.onmouseup?
-		&	scripting.attr.onwheel?
+		&	scripting.attr.onpaste?
 		&	scripting.attr.onpause?
 		&	scripting.attr.onplay?
 		&	scripting.attr.onplaying?
@@ -175,27 +166,31 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	scripting.attr.onreset?
 		&	scripting.attr.onresize?
 		&	scripting.attr.onscroll?
+		&	scripting.attr.onsecuritypolicyviolation?
 		&	scripting.attr.onseeked?
 		&	scripting.attr.onseeking?
 		&	scripting.attr.onselect?
-		&	scripting.attr.onsort?
+		&	scripting.attr.onslotchange?
 		&	scripting.attr.onstalled?
 		&	scripting.attr.onsubmit?
 		&	scripting.attr.onsuspend?
 		&	scripting.attr.ontimeupdate?
 		&	scripting.attr.ontoggle?
+		&	scripting.attr.ontransitioncancel?
+		&	scripting.attr.ontransitionend?
+		&	scripting.attr.ontransitionrun?
+		&	scripting.attr.ontransitionstart?
 		&	scripting.attr.onvolumechange?
 		&	scripting.attr.onwaiting?
+		&	scripting.attr.onwheel?
 		)
 		
 	common.attrs.other &= common.attrs.scripting

 	scripting.attr.onabort =
 		attribute onabort { common.data.functionbody }
-	scripting.attr.onautocomplete =
-		attribute onautocomplete { common.data.functionbody }
-	scripting.attr.onautocompleteerror =
-		attribute onautocompleteerror { common.data.functionbody }
+	scripting.attr.onauxclick =
+		attribute onauxclick { common.data.functionbody }
 	scripting.attr.onblur =
 		attribute onblur { common.data.functionbody }
 	scripting.attr.oncanplay =
@@ -212,8 +207,12 @@ datatypes w = "http://whattf.org/datatype-draft"
 		attribute onclose { common.data.functionbody }
 	scripting.attr.oncontextmenu =
 		attribute oncontextmenu { common.data.functionbody }
+	scripting.attr.oncopy =
+		attribute oncopy { common.data.functionbody }
 	scripting.attr.oncuechange =
 		attribute oncuechange { common.data.functionbody }
+	scripting.attr.oncut =
+		attribute oncut { common.data.functionbody }
 	scripting.attr.ondblclick =
 		attribute ondblclick { common.data.functionbody }
 	scripting.attr.ondrag =
@@ -222,8 +221,6 @@ datatypes w = "http://whattf.org/datatype-draft"
 		attribute ondragend { common.data.functionbody }
 	scripting.attr.ondragenter =
 		attribute ondragenter { common.data.functionbody }
-	scripting.attr.ondragexit =
-		attribute ondragexit { common.data.functionbody }
 	scripting.attr.ondragleave =
 		attribute ondragleave { common.data.functionbody }
 	scripting.attr.ondragover =
@@ -248,6 +245,8 @@ datatypes w = "http://whattf.org/datatype-draft"
 		attribute onfocusout { common.data.functionbody }
 	scripting.attr.onformchange =
 		attribute onformchange { common.data.functionbody }
+	scripting.attr.onformdata =
+		attribute onformdata { common.data.functionbody }
 	scripting.attr.onforminput =
 		attribute onforminput { common.data.functionbody }
 	scripting.attr.oninput =
@@ -284,6 +283,8 @@ datatypes w = "http://whattf.org/datatype-draft"
 		attribute onmouseup { common.data.functionbody }
 	scripting.attr.onwheel =
 		attribute onwheel { common.data.functionbody }
+	scripting.attr.onpaste =
+		attribute onpaste { common.data.functionbody }
 	scripting.attr.onpause =
 		attribute onpause { common.data.functionbody }
 	scripting.attr.onplay =
@@ -300,14 +301,16 @@ datatypes w = "http://whattf.org/datatype-draft"
 		attribute onresize { common.data.functionbody }
 	scripting.attr.onscroll =
 		attribute onscroll { common.data.functionbody }
+	scripting.attr.onsecuritypolicyviolation =
+		attribute onsecuritypolicyviolation { common.data.functionbody }
 	scripting.attr.onseeked =
 		attribute onseeked { common.data.functionbody }
 	scripting.attr.onseeking =
 		attribute onseeking { common.data.functionbody }
 	scripting.attr.onselect =
 		attribute onselect { common.data.functionbody }
-	scripting.attr.onsort =
-		attribute onsort { common.data.functionbody }
+	scripting.attr.onslotchange =
+		attribute onslotchange { common.data.functionbody }
 	scripting.attr.onstalled =
 		attribute onstalled { common.data.functionbody }
 	scripting.attr.onsubmit =
@@ -318,6 +321,14 @@ datatypes w = "http://whattf.org/datatype-draft"
 		attribute ontimeupdate { common.data.functionbody }
 	scripting.attr.ontoggle =
 		attribute ontoggle { common.data.functionbody }
+	scripting.attr.ontransitioncancel =
+		attribute ontransitioncancel { common.data.functionbody }
+	scripting.attr.ontransitionend =
+		attribute ontransitionend { common.data.functionbody }
+	scripting.attr.ontransitionrun =
+		attribute ontransitionrun { common.data.functionbody }
+	scripting.attr.ontransitionstart =
+		attribute ontransitionstart { common.data.functionbody }
 	scripting.attr.onvolumechange =
 		attribute onvolumechange { common.data.functionbody }
 	scripting.attr.onwaiting =
--- a/xml/relaxng/src/resources/html5-schema/html5/data.rnc
+++ b/xml/relaxng/src/resources/html5-schema/html5/data.rnc
@@ -65,9 +65,6 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	meter.attrs.high?
 		&	meter.attrs.max?
 		&	meter.attrs.optimum?
-		&	(	common.attrs.aria.implicit.progressbar
-			|	common.attrs.aria.role.progressbar
-			)?
 		)
 		meter.attrs.value =
 			attribute value {
--- a/xml/relaxng/src/resources/html5-schema/html5/embed.rnc
+++ b/xml/relaxng/src/resources/html5-schema/html5/embed.rnc
@@ -10,26 +10,50 @@ namespace local = ""

 ## Images: <img>

-	img.elem =
-		element img { img.inner & img.attrs }
-	img.attrs =
+	shared-img.attrs =
 		(	common.attrs
 		&	img.attrs.src
 		&	img.attrs.srcset?
 		&	img.attrs.sizes?
-		&	img.attrs.alt? # ARIA: if alt empty, only allowed role value is "presentation"; check in assertions
+		&	img.attrs.generator-unable-to-provide-required-alt?
 		&	img.attrs.height?
 		&	img.attrs.width?
 		&	img.attrs.usemap?
 		&	img.attrs.ismap?
 		&	img.attrs.decoding?
+		&	img.attrs.loading?
 		&	img.attrs.border? # obsolete
 		&	referrerpolicy?
 		&	embedded.content.attrs.crossorigin?
+		)
+
+	img.elem =
+		element img { img.inner & img.attrs }
+	img.attrs =
+		(	shared-img.attrs
+		&	img.attrs.alt?
 		&	(	common.attrs.aria.implicit.img
-			|	common.attrs.aria
+			|	common.attrs.aria.role.button
+			|	common.attrs.aria.role.checkbox
+			|	common.attrs.aria.role.img
+			|	common.attrs.aria.role.link
+			|	common.attrs.aria.role.menuitem
+			|	common.attrs.aria.role.menuitemcheckbox
+			|	common.attrs.aria.role.menuitemradio
+			|	common.attrs.aria.role.none
+			|	common.attrs.aria.role.option
+			|	common.attrs.aria.role.presentation
+			|	common.attrs.aria.role.progressbar
+			|	common.attrs.aria.role.scrollbar
+			|	common.attrs.aria.role.separator
+			|	common.attrs.aria.role.slider
+			|	common.attrs.aria.role.switch
+			|	common.attrs.aria.role.tab
+			|	common.attrs.aria.role.treeitem
+			|	common.attrs.aria.role.doc-cover
 			)?
 		)
+
 		img.attrs.src =
 			attribute src {
 				common.data.uri.non-empty
@@ -46,6 +70,10 @@ namespace local = ""
 			attribute alt {
 				text
 			}
+		img.attrs.generator-unable-to-provide-required-alt =
+			attribute generator-unable-to-provide-required-alt {
+				string ""
+			}
 		img.attrs.height =
 			attribute height {
 				common.data.integer.non-negative
@@ -69,6 +97,10 @@ namespace local = ""
 				|	string "auto"
 				)
 			}
+		img.attrs.loading =
+			attribute loading {
+				w:string "lazy" | w:string "eager"
+			}
 		img.attrs.border =
 			attribute border {
 				common.data.zero
@@ -181,8 +213,7 @@ namespace local = ""
 			                    | inputmode
 			                    | nonce
 			                    | onabort
-			                    | onautocomplete
-			                    | onautocompleteerror
+			                    | onauxclick
 			                    | onblur
 			                    | oncancel
 			                    | oncanplay
@@ -191,12 +222,13 @@ namespace local = ""
 			                    | onclick
 			                    | onclose
 			                    | oncontextmenu
+			                    | oncopy
 			                    | oncuechange
+			                    | oncut
 			                    | ondblclick
 			                    | ondrag
 			                    | ondragend
 			                    | ondragenter
-			                    | ondragexit
 			                    | ondragleave
 			                    | ondragover
 			                    | ondragstart
@@ -208,6 +240,7 @@ namespace local = ""
 			                    | onfocus
 			                    | onfocusin
 			                    | onfocusout
+			                    | onformdata
 			                    | oninput
 			                    | oninvalid
 			                    | onkeydown
@@ -224,7 +257,7 @@ namespace local = ""
 			                    | onmouseout
 			                    | onmouseover
 			                    | onmouseup
-			                    | onwheel
+			                    | onpaste
 			                    | onpause
 			                    | onplay
 			                    | onplaying
@@ -233,17 +266,23 @@ namespace local = ""
 			                    | onreset
 			                    | onresize
 			                    | onscroll
+			                    | onsecuritypolicyviolation
 			                    | onseeked
 			                    | onseeking
+			                    | onslotchange
 			                    | onselect
-			                    | onsort
 			                    | onstalled
 			                    | onsubmit
 			                    | onsuspend
 			                    | ontimeupdate
 			                    | ontoggle
+			                    | ontransitioncancel
+			                    | ontransitionend
+			                    | ontransitionrun
+			                    | ontransitionstart
 			                    | onvolumechange
 			                    | onwaiting
+			                    | onwheel
 			                    | role
 			                    | aria-atomic
 			                    | aria-busy
@@ -278,6 +317,8 @@ namespace local = ""
 			                    | itemid
 			                    | name
 			                    | align
+			                    | hspace
+			                    | vspace
 			                    | about
 			                    | prefix
 			                    | property
@@ -369,7 +410,6 @@ namespace local = ""
 		&	(	common.attrs.aria.role.application
 			|	common.attrs.aria.landmark.document
 			|	common.attrs.aria.role.img
-			|	common.attrs.aria.role.presentation
 			)?
 		)
 		object.attrs.data =
@@ -416,9 +456,6 @@ namespace local = ""
 		(	common.attrs
 		&	param.attrs.name
 		&	param.attrs.value
-		&	(	common.attrs.aria.role.presentation
-			|	common.attrs.aria.role.menuitem
-			)?
 		)
 		param.attrs.name =
 			attribute name {
@@ -442,10 +479,9 @@ namespace local = ""
 		&	iframe.attrs.name?
 		&	iframe.attrs.width?
 		&	iframe.attrs.height?
+		&	iframe.attrs.loading?
 		&	iframe.attrs.sandbox?
 		&	iframe.attrs.allowfullscreen?
-		&	iframe.attrs.allowpaymentrequest?
-		&	iframe.attrs.allowusermedia?
 		&	iframe.attrs.allow?
 		&	referrerpolicy?
 		&	(	common.attrs.aria.role.application
@@ -470,6 +506,10 @@ namespace local = ""
 			attribute height {
 				common.data.integer.non-negative
 			}
+		iframe.attrs.loading =
+			attribute loading {
+				w:string "lazy" | w:string "eager"
+			}
 		iframe.attrs.width =
 			attribute width {
 				common.data.integer.non-negative
@@ -482,14 +522,6 @@ namespace local = ""
 			attribute allowfullscreen {
 				w:string "allowfullscreen" | w:string ""
 			} & v5only
-		iframe.attrs.allowpaymentrequest =
-			attribute allowpaymentrequest {
-				w:string "allowpaymentrequest" | w:string ""
-			} & v5only
-		iframe.attrs.allowusermedia =
-			attribute allowusermedia {
-				w:string "allowusermedia" | w:string ""
-			} & v5only
 		iframe.attrs.allow =
 			attribute allow {
 				common.data.feature-policy
@@ -511,9 +543,6 @@ namespace local = ""
 	map.attrs =
 		(	common.attrs
 		&	map.attrs.name
-		&	(	common.attrs.aria.role.presentation
-			|	common.attrs.aria.role.menuitem
-			)?
 		) # REVISIT make id required in Schematron
 		map.attrs.name =
 			attribute name {
--- a/xml/relaxng/src/resources/html5-schema/html5/legacy.rnc
+++ b/xml/relaxng/src/resources/html5-schema/html5/legacy.rnc
@@ -302,9 +302,9 @@ datatypes w = "http://whattf.org/datatype-draft"
 			attribute content {
 				string
 			}
-		
+
 	common.elem.metadata |= meta.http-equiv.content-language.elem # not quite right per spec
-                                                               # if the definition is 
+                                                               # if the definition is
                                                               # reused in another language

 ## Key-pair generator/input control: <keygen>
@@ -1015,6 +1015,45 @@ datatypes w = "http://whattf.org/datatype-draft"

 ## hspace attribute

+	embed.attrs.hspace =
+		attribute hspace {
+			string
+		}
+	embed.attrs &= embed.attrs.hspace?
+
+	iframe.attrs.hspace =
+		attribute hspace {
+			string
+		}
+	iframe.attrs &= iframe.attrs.hspace?
+
+	input.attrs.hspace =
+		attribute hspace {
+			string
+		}
+	input.text.attrs &= input.attrs.hspace?
+	input.password.attrs &= input.attrs.hspace?
+	input.checkbox.attrs &= input.attrs.hspace?
+	input.radio.attrs &= input.attrs.hspace?
+	input.button.attrs &= input.attrs.hspace?
+	input.submit.attrs &= input.attrs.hspace?
+	input.reset.attrs &= input.attrs.hspace?
+	input.file.attrs &= input.attrs.hspace?
+	input.image.attrs &= input.attrs.hspace?
+	input.datetime.attrs &= input.attrs.hspace?
+	input.datetime-local.attrs &= input.attrs.hspace?
+	input.date.attrs &= input.attrs.hspace?
+	input.month.attrs &= input.attrs.hspace?
+	input.time.attrs &= input.attrs.hspace?
+	input.week.attrs &= input.attrs.hspace?
+	input.number.attrs &= input.attrs.hspace?
+	input.range.attrs &= input.attrs.hspace?
+	input.email.attrs &= input.attrs.hspace?
+	input.url.attrs &= input.attrs.hspace?
+	input.search.attrs &= input.attrs.hspace?
+	input.tel.attrs &= input.attrs.hspace?
+	input.color.attrs &= input.attrs.hspace?
+
 	img.attrs.hspace =
 		attribute hspace {
 			string
@@ -1246,6 +1285,45 @@ datatypes w = "http://whattf.org/datatype-draft"

 ## vspace attribute

+	embed.attrs.vspace =
+		attribute vspace {
+			string
+		}
+	embed.attrs &= embed.attrs.vspace?
+
+	iframe.attrs.vspace =
+		attribute vspace {
+			string
+		}
+	iframe.attrs &= iframe.attrs.vspace?
+
+	input.attrs.vspace =
+		attribute vspace {
+			string
+		}
+	input.text.attrs &= input.attrs.vspace?
+	input.password.attrs &= input.attrs.vspace?
+	input.checkbox.attrs &= input.attrs.vspace?
+	input.radio.attrs &= input.attrs.vspace?
+	input.button.attrs &= input.attrs.vspace?
+	input.submit.attrs &= input.attrs.vspace?
+	input.reset.attrs &= input.attrs.vspace?
+	input.file.attrs &= input.attrs.vspace?
+	input.image.attrs &= input.attrs.vspace?
+	input.datetime.attrs &= input.attrs.vspace?
+	input.datetime-local.attrs &= input.attrs.vspace?
+	input.date.attrs &= input.attrs.vspace?
+	input.month.attrs &= input.attrs.vspace?
+	input.time.attrs &= input.attrs.vspace?
+	input.week.attrs &= input.attrs.vspace?
+	input.number.attrs &= input.attrs.vspace?
+	input.range.attrs &= input.attrs.vspace?
+	input.email.attrs &= input.attrs.vspace?
+	input.url.attrs &= input.attrs.vspace?
+	input.search.attrs &= input.attrs.vspace?
+	input.tel.attrs &= input.attrs.vspace?
+	input.color.attrs &= input.attrs.vspace?
+
 	img.attrs.vspace =
 		attribute vspace {
 			string
--- a/xml/relaxng/src/resources/html5-schema/html5/media.rnc
+++ b/xml/relaxng/src/resources/html5-schema/html5/media.rnc
@@ -44,9 +44,6 @@ datatypes w = "http://whattf.org/datatype-draft"
 		(	common.attrs
 		&	source.attrs.src
 		&	source.attrs.type?
-		&	(	common.attrs.aria.role.presentation
-			|	common.attrs.aria.role.menuitem
-			)?
 		)
 		source.attrs.src =
 			attribute src {
@@ -153,9 +150,6 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	track.attrs.srclang?
 		&	track.attrs.label?
 		&	track.attrs.default?
-		&	(	common.attrs.aria.role.presentation
-			|	common.attrs.aria.role.menuitem
-			)?
 		)
 		track.attrs.kind =
 			attribute kind {
--- a/xml/relaxng/src/resources/html5-schema/html5/meta.rnc
+++ b/xml/relaxng/src/resources/html5-schema/html5/meta.rnc
@@ -22,9 +22,6 @@ datatypes w = "http://whattf.org/datatype-draft"
 	head.attrs =
 		(	common.attrs
 #		&	head.attrs.profile?
-		&	(	common.attrs.aria.role.presentation
-			|	common.attrs.aria.role.menuitem
-			)?
 		)
 #		head.attrs.profile =
 #			attribute profile {
@@ -106,11 +103,7 @@ datatypes w = "http://whattf.org/datatype-draft"
 	title.elem =
 		element title { title.inner & title.attrs }
 	title.attrs =
-		(	common.attrs
-		&	(	common.attrs.aria.role.presentation
-			|	common.attrs.aria.role.menuitem
-			)?
-		)
+		( common.attrs )
 	title.inner =
 		( text )

@@ -159,15 +152,13 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	referrerpolicy?
 		&	link.attrs.sizes?
 		&	link.attrs.color?
+		&	link.attrs.disabled?
 		&	link.attrs.scope?
 		&	link.attrs.updateviacache?
 		&	link.attrs.workertype?
 		#	link.attrs.title included in common.attrs
 		&	embedded.content.attrs.crossorigin?
-		&	(	common.attrs.aria.role.link
-			|	common.attrs.aria.role.presentation
-			|	common.attrs.aria.role.menuitem
-			)?
+		&	common.attrs.aria.role.link?
 		)
 		link.attrs.href =
 			attribute href {
@@ -175,7 +166,7 @@ datatypes w = "http://whattf.org/datatype-draft"
 			}
 		link.attrs.rel =
 			attribute rel {
-				w:link-rel
+				string
 			}
 		link.attrs.as =
 			attribute as {
@@ -184,6 +175,7 @@ datatypes w = "http://whattf.org/datatype-draft"
 			|	string "audioworklet"
 			|	string "document"
 			|	string "embed"
+			|	string "fetch"
 			|	string "font"
 			|	string "image"
 			|	string "manifest"
@@ -211,6 +203,10 @@ datatypes w = "http://whattf.org/datatype-draft"
 			attribute color {
 				common.data.color
 			}
+		link.attrs.disabled =
+			attribute disabled {
+				w:string "disabled" | w:string ""
+			}
 		link.attrs.scope =
 			attribute scope {
 				common.data.uri
@@ -242,9 +238,6 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	style.attrs.type?
 		&	style.attrs.media?
 		#	style.attrs.title included in common.attrs
-		&	(	common.attrs.aria.role.presentation
-			|	common.attrs.aria.role.menuitem
-			)?
 		)
 		style.attrs.type =
 			attribute type {
@@ -274,9 +267,6 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	common.attrs.microdata.itemscope?
 		&	common.attrs.microdata.itemtype?
 		&	common.attrs.microdata.itemid?
-		&	(	common.attrs.aria.role.presentation
-			|	common.attrs.aria.role.menuitem
-			)?
 		)
 		meta.name.attrs.name =
 			attribute name {
@@ -302,9 +292,6 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	common.attrs.other
 		&	meta.http-equiv.attrs.http-equiv.refresh
 		&	meta.http-equiv.attrs.content.refresh
-		&	(	common.attrs.aria.role.presentation
-			|	common.attrs.aria.role.menuitem
-			)?
 		)
 		meta.http-equiv.attrs.http-equiv.refresh =
 			attribute http-equiv {
@@ -329,9 +316,6 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	common.attrs.other
 		&	meta.http-equiv.attrs.http-equiv.default-style
 		&	meta.http-equiv.attrs.content.default-style
-		&	(	common.attrs.aria.role.presentation
-			|	common.attrs.aria.role.menuitem
-			)?
 		)
 		meta.http-equiv.attrs.http-equiv.default-style =
 			attribute http-equiv {
@@ -357,9 +341,6 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	common.attrs.other
 		&	meta.http-equiv.attrs.http-equiv.content-security-policy
 		&	meta.http-equiv.attrs.content.content-security-policy
-		&	(	common.attrs.aria.role.presentation
-			|	common.attrs.aria.role.menuitem
-			)?
 		)
 		meta.http-equiv.attrs.http-equiv.content-security-policy =
 			attribute http-equiv {
@@ -382,9 +363,6 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	common.attrs.other
 		&	meta.http-equiv.attrs.http-equiv.x-ua-compatible
 		&	meta.http-equiv.attrs.content.x-ua-compatible
-		&	(	common.attrs.aria.role.presentation
-			|	common.attrs.aria.role.menuitem
-			)?
 		)
 		meta.http-equiv.attrs.http-equiv.x-ua-compatible =
 			attribute http-equiv {
@@ -406,9 +384,6 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	common.attrs.present
 		&	common.attrs.other
 		&	meta.charset.attrs.charset
-		&	(	common.attrs.aria.role.presentation
-			|	common.attrs.aria.role.menuitem
-			)?
 		)
 		meta.charset.attrs.charset =
 			attribute charset {
@@ -430,9 +405,6 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	common.attrs.other
 		&	meta.http-equiv.attrs.http-equiv.content-type
 		&	meta.http-equiv.attrs.content.content-type
-		&	(	common.attrs.aria.role.presentation
-			|	common.attrs.aria.role.menuitem
-			)?
 		)
 		meta.http-equiv.attrs.http-equiv.content-type =
 			attribute http-equiv {
--- a/xml/relaxng/src/resources/html5-schema/html5/microdata.rnc
+++ b/xml/relaxng/src/resources/html5-schema/html5/microdata.rnc
@@ -89,9 +89,6 @@ link.attrs &= common.attrs.microdata.itemid?
 		&	common.attrs.microdata.itemtype?
 		&	common.attrs.microdata.itemid?
 		&	meta.itemprop.attrs.content
-		&	(	common.attrs.aria.role.presentation
-			|	common.attrs.aria.role.menuitem
-			)?
 		)
 		meta.itemprop.attrs.content =
 			attribute content {
--- a/xml/relaxng/src/resources/html5-schema/html5/phrase.rnc
+++ b/xml/relaxng/src/resources/html5-schema/html5/phrase.rnc
@@ -87,7 +87,7 @@ datatypes w = "http://whattf.org/datatype-draft"
    }
  shared-hyperlink.attrs.rel =
    attribute rel {
-      w:a-rel
+      string
    }
  shared-hyperlink.attrs.hreflang =
    attribute hreflang {
--- a/xml/relaxng/src/resources/html5-schema/html5/rdfa.rnc
+++ b/xml/relaxng/src/resources/html5-schema/html5/rdfa.rnc
@@ -265,9 +265,6 @@ link.rdfa.attrs.phrasing =
 		&	meta.name.attrs.name?
 		&	common.attrs.rdfa.property
 		&	meta.name.attrs.content
-		&	(	common.attrs.aria.role.presentation
-			|	common.attrs.aria.role.menuitem
-			)?
 		)
 	common.elem.metadata |= meta.property.elem

--- a/xml/relaxng/src/resources/html5-schema/html5/sectional.rnc
+++ b/xml/relaxng/src/resources/html5-schema/html5/sectional.rnc
@@ -119,11 +119,7 @@
 		element hgroup { hgroup.inner & hgroup.attrs }
 	hgroup.attrs =
 		(	common.attrs
-		&	(	common.attrs.aria.implicit.heading
-			|	common.attrs.aria.role.heading
-			|	common.attrs.aria.role.tab
-			|	common.attrs.aria.role.presentation
-			)?
+		&	common.attrs.aria?
 		)
 	hgroup.inner =
 		(	(	h1.elem
--- a/xml/relaxng/src/resources/html5-schema/html5/structural.rnc
+++ b/xml/relaxng/src/resources/html5-schema/html5/structural.rnc
@@ -12,19 +12,21 @@
 			|	common.attrs.aria.role.alert
 			|	common.attrs.aria.role.alertdialog
 			|	common.attrs.aria.role.application
-			|	common.attrs.aria.role.contentinfo
 			|	common.attrs.aria.role.dialog
 			|	common.attrs.aria.role.feed
 			|	common.attrs.aria.role.log
 			|	common.attrs.aria.role.marquee
+			|	common.attrs.aria.role.presentation
 			|	common.attrs.aria.role.region
 			|	common.attrs.aria.role.status
 			|	common.attrs.aria.role.tabpanel
 			|	common.attrs.aria.landmark.banner
 			|	common.attrs.aria.landmark.complementary
+			|	common.attrs.aria.landmark.contentinfo
 			|	common.attrs.aria.landmark.document
 			|	common.attrs.aria.landmark.main
 			|	common.attrs.aria.landmark.navigation
+			|	common.attrs.aria.landmark.note
 			|	common.attrs.aria.landmark.search
 			|	common.attrs.aria.role.doc-abstract
 			|	common.attrs.aria.role.doc-acknowledgments
@@ -38,10 +40,12 @@
 			|	common.attrs.aria.role.doc-credits
 			|	common.attrs.aria.role.doc-dedication
 			|	common.attrs.aria.role.doc-endnotes
+			|	common.attrs.aria.role.doc-epigraph
 			|	common.attrs.aria.role.doc-epilogue
 			|	common.attrs.aria.role.doc-errata
 			|	common.attrs.aria.role.doc-example
 			|	common.attrs.aria.role.doc-foreword
+			|	common.attrs.aria.role.doc-glossary
 			|	common.attrs.aria.role.doc-index
 			|	common.attrs.aria.role.doc-introduction
 			|	common.attrs.aria.role.doc-notice
@@ -112,6 +116,7 @@
 			|	common.attrs.aria.role.feed
 			|	common.attrs.aria.role.region
 			|	common.attrs.aria.role.presentation
+			|	common.attrs.aria.role.doc-dedication
 			|	common.attrs.aria.role.doc-example
 			|	common.attrs.aria.role.doc-footnote
 			|	common.attrs.aria.role.doc-pullquote
--- a/xml/relaxng/src/resources/html5-schema/html5/web-forms.rnc
+++ b/xml/relaxng/src/resources/html5-schema/html5/web-forms.rnc
@@ -172,6 +172,7 @@ datatypes w = "http://whattf.org/datatype-draft"
 			|	common.attrs.aria.role.option
 			|	common.attrs.aria.role.radio
 			|	common.attrs.aria.role.switch
+			|	common.attrs.aria.role.tab
 			)?
 		)
 		input.button.attrs.type = 
@@ -244,9 +245,6 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	common-form.attrs
 		&	input.file.attrs.type
 		&	input.file.attrs.accept?
-		&	(	common.attrs.aria?
-			|	aria.prop.required?
-			)
 		)
 		input.file.attrs.type = 
 			attribute type {
@@ -392,8 +390,8 @@ datatypes w = "http://whattf.org/datatype-draft"
 		(	common.attrs
 		&	optgroup.attrs.label
 		&	common-form.attrs.disabled?
-		&	(	common.attrs.aria.role.presentation
-			|	common.attrs.aria.role.menuitem
+		&	(	common.attrs.aria.implicit.group
+			|	common.attrs.aria.role.group
 			)?
 		)
 		optgroup.attrs.label =
@@ -415,9 +413,11 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	select.attrs.size?
 		&	select.attrs.multiple?
 		# FIXME onfocus, onblur, onchange
-		&	(	common.attrs.aria.implicit.listbox
-			|	common.attrs.aria.role.listbox # aria-multiselectable depends on "multiple" value; check in assertions
+		&	(	common.attrs.aria.role.listbox # aria-multiselectable depends on "multiple" value; check in assertions
+			|	common.attrs.aria.role.combobox
 			|	common.attrs.aria.role.menu
+			|	common.attrs.aria.implicit.combobox
+			|	common.attrs.aria.implicit.listbox
 			)?
 		)
 		select.attrs.size =
--- a/xml/relaxng/src/resources/html5-schema/html5/web-forms2.rnc
+++ b/xml/relaxng/src/resources/html5-schema/html5/web-forms2.rnc
@@ -91,6 +91,17 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	shared-form.attrs.required?
 		)

+	shared-input-no-list.attrs =
+		(	input.attrs.autocomplete?
+		&	shared-form.attrs.maxlength?
+		&	shared-form.attrs.minlength?
+		&	shared-form.attrs.pattern?
+		&	shared-form.attrs.placeholder?
+		&	shared-form.attrs.readonly?
+		&	shared-form.attrs.required?
+		&	shared-form.attrs.size?
+		)
+
 	shared-input.attrs =
 		(	shared-input-no-size.attrs
 		&	shared-form.attrs.size?
@@ -199,7 +210,13 @@ datatypes w = "http://whattf.org/datatype-draft"
 	input.file.attrs &=
 		(	shared-input.attrs
 		&	input.attrs.multiple?
+		&	aria.prop.required?
+		&	input.input.attrs.capture?
 		)
+		input.input.attrs.capture =
+			attribute capture {
+				w:string "user" | w:string "environment"
+			}

 ## Image Submit Button: <input type='image'>, Extensions

@@ -235,9 +252,6 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	input.datetime-local.attrs.max?
 		&	input.attrs.step.float?
 		&	input.datetime-local.attrs.value?
-		&	(	common.attrs.aria?
-			|	aria.prop.required?
-			)
 		)	
 		input.datetime-local.attrs.type = 
 			attribute type {
@@ -271,9 +285,6 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	input.date.attrs.max?
 		&	input.attrs.step.integer?
 		&	input.date.attrs.value?
-		&	(	common.attrs.aria?
-			|	aria.prop.required?
-			)
 		)	
 		input.date.attrs.type = 
 			attribute type {
@@ -307,9 +318,6 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	input.month.attrs.max?
 		&	input.attrs.step.integer?
 		&	input.month.attrs.value?
-		&	(	common.attrs.aria?
-			|	aria.prop.required?
-			)
 		)	
 		input.month.attrs.type = 
 			attribute type {
@@ -343,9 +351,6 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	input.time.attrs.max?
 		&	input.attrs.step.float?
 		&	input.time.attrs.value?
-		&	(	common.attrs.aria?
-			|	aria.prop.required?
-			)
 		)	
 		input.time.attrs.type = 
 			attribute type {
@@ -379,9 +384,6 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	input.week.attrs.max?
 		&	input.attrs.step.integer?
 		&	input.week.attrs.value?
-		&	(	common.attrs.aria?
-			|	aria.prop.required?
-			)
 		)	
 		input.week.attrs.type = 
 			attribute type {
@@ -481,18 +483,23 @@ datatypes w = "http://whattf.org/datatype-draft"
 	input.email.attrs = 
 		(	common.attrs
 		&	common-form.attrs
-		&	shared-input.attrs
+		&	shared-input-no-list.attrs
 		&	input.email.attrs.type
 		&	(	(	input.attrs.multiple
 				&	input.email.attrs.value.multiple?
 				)
 			|	input.email.attrs.value.single?
 			)?
-		&	(	common.attrs.aria.implicit.textbox
-			|	common.attrs.aria.implicit.combobox
-			|	common.attrs.aria.role.textbox
-			|	common.attrs.aria.role.combobox
-			)?
+		&	(
+				(	common.attrs.aria.implicit.textbox
+				|	common.attrs.aria.role.textbox
+				)?
+			|	(	input.attrs.list
+				&	(	common.attrs.aria.implicit.combobox
+					|	common.attrs.aria.role.combobox
+					)?
+				)?
+			)
 		)	
 		input.email.attrs.type = 
 			attribute type {
@@ -516,15 +523,20 @@ datatypes w = "http://whattf.org/datatype-draft"
 	input.url.attrs = 
 		(	common.attrs
 		&	common-form.attrs
-		&	shared-input.attrs
+		&	shared-input-no-list.attrs
 		&	input.url.attrs.type
 		&	input.url.attrs.value?
-		&	(	common.attrs.aria.implicit.textbox
-			|	common.attrs.aria.implicit.combobox
-			|	common.attrs.aria.role.textbox
-			|	common.attrs.aria.role.combobox
-			)?
-		)	
+		&	(
+				(	common.attrs.aria.implicit.textbox
+				|	common.attrs.aria.role.textbox
+				)?
+			|	(	input.attrs.list
+				&	(	common.attrs.aria.implicit.combobox
+					|	common.attrs.aria.role.combobox
+					)?
+				)?
+			)
+		)
 		input.url.attrs.type = 
 			attribute type {
 				w:string "url"
@@ -569,15 +581,20 @@ datatypes w = "http://whattf.org/datatype-draft"
 	input.tel.attrs = 
 		(	common.attrs
 		&	common-form.attrs
-		&	shared-input.attrs
+		&	shared-input-no-list.attrs
 		&	input.tel.attrs.type
 		&	input.tel.attrs.value?
-		&	(	common.attrs.aria.implicit.textbox
-			|	common.attrs.aria.implicit.combobox
-			|	common.attrs.aria.role.textbox
-			|	common.attrs.aria.role.combobox
-			)?
-		)	
+		&	(
+				(	common.attrs.aria.implicit.textbox
+				|	common.attrs.aria.role.textbox
+				)?
+			|	(	input.attrs.list
+				&	(	common.attrs.aria.implicit.combobox
+					|	common.attrs.aria.role.combobox
+					)?
+				)?
+			)
+		)
 		input.tel.attrs.type = 
 			attribute type {
 				w:string "tel"
@@ -599,7 +616,6 @@ datatypes w = "http://whattf.org/datatype-draft"
 		&	input.color.attrs.type
 		&	input.color.attrs.value?
 		&	shared-input.attrs
-		&	common.attrs.aria?
 		)	
 		input.color.attrs.type = 
 			attribute type {
--- a/xml/relaxng/src/resources/html5-schema/html5chars.ent
+++ b/xml/relaxng/src/resources/html5-schema/html5chars.ent
@@ -1,5 +1,5 @@
 <!--
- * Copyright 2000-2019 JetBrains s.r.o.
+ * Copyright 2000-2021 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
--- a/xml/relaxng/src/resources/html5-schema/svg11/svg-basic-filter.rnc
+++ b/xml/relaxng/src/resources/html5-schema/svg11/svg-basic-filter.rnc
@@ -131,7 +131,22 @@ grammar {
        attribute in2 { text },
        [ a:defaultValue = "normal" ]
        attribute mode {
-            string "normal" | string "multiply" | string "screen" | string "darken" | string "lighten"
+            string "normal"
+            | string "multiply"
+            | string "screen"
+            | string "overlay"
+            | string "darken"
+            | string "lighten"
+            | string "color-dodge"
+            | string "color-burn"
+            | string "hard-light"
+            | string "soft-light"
+            | string "difference"
+            | string "exclusion"
+            | string "hue"
+            | string "saturation"
+            | string "color"
+            | string "luminosity"
        }?
    a:documentation [
        "\x{a}" ~
@@ -184,7 +199,7 @@ grammar {
        attribute in2 { text },
        [ a:defaultValue = "over" ]
        attribute operator {
-            string "over" | string "in" | string "out" | string "atop" | string "xor" | string "arithmetic"
+            string "over" | string "in" | string "out" | string "atop" | string "xor" | string "lighter" | string "arithmetic"
        }?,
        attribute k1 { Number.datatype }?,
        attribute k2 { Number.datatype }?,
--- a/xml/relaxng/src/resources/html5-schema/svg11/svg-basic-structure.rnc
+++ b/xml/relaxng/src/resources/html5-schema/svg11/svg-basic-structure.rnc
@@ -175,7 +175,9 @@ grammar {
        SVG.DocumentEvents.attrib,
        SVG.GraphicalEvents.attrib,
        SVG.External.attrib,
-        common.attrs.aria?,
+        (common.attrs.aria.role.application
+          | common.attrs.aria.landmark.document
+          | common.attrs.aria.role.img)?,
        attribute x { Coordinate.datatype }?,
        attribute y { Coordinate.datatype }?,
        attribute width { Length.datatype }?,
--- a/xml/relaxng/src/resources/html5-schema/svg11/svg-filter.rnc
+++ b/xml/relaxng/src/resources/html5-schema/svg11/svg-filter.rnc
@@ -39,6 +39,7 @@ grammar {
        | feMorphology
        | feSpecularLighting
        | feTurbulence
+        | feDropShadow
    a:documentation [
        "\x{a}" ~
        "    feConvolveMatrix: Filter Effect Convolve Matrix Element\x{a}" ~
@@ -215,4 +216,24 @@ grammar {
        attribute pointsAtZ { Number.datatype }?,
        attribute specularExponent { Number.datatype }?,
        attribute limitingConeAngle { Number.datatype }?
+    a:documentation [
+        "\x{a}" ~
+        "    feDropShadow: Filter Effects Drop Shadow\x{a}" ~
+        "  "
+    ]
+    SVG.feDropShadow.content = (animate | set)*
+    SVG.feDropShadow.content &= SVG.Description.class*
+    SVG.feDropShadow.content &= SVG.Script.class*
+    feDropShadow =
+        element feDropShadow {
+            attlist.feDropShadow, SVG.feDropShadow.content
+        }
+    attlist.feDropShadow &=
+        SVG.Core.attrib,
+        SVG.Presentation.attrib,
+        SVG.Style.attrib,
+        SVG.FilterPrimitiveWithIn.attrib,
+        attribute stdDeviation { NumberOptionalNumber.datatype }?,
+        attribute dx { Number.datatype }?,
+        attribute dy { Number.datatype }?
 }
--- a/xml/relaxng/src/resources/html5-schema/svg11/svg-structure.rnc
+++ b/xml/relaxng/src/resources/html5-schema/svg11/svg-structure.rnc
@@ -63,6 +63,8 @@ grammar {
        SVG.GraphicalEvents.attrib,
        SVG.External.attrib,
        common.attrs.aria?,
+        attribute width { Length.datatype }?,
+        attribute height { Length.datatype }?,
        attribute viewBox { ViewBoxSpec.datatype }?,
        [ a:defaultValue = "xMidYMid meet" ]
        attribute preserveAspectRatio {
--- a/xml/relaxng/src/resources/update_html5_schema.sh
+++ b/xml/relaxng/src/resources/update_html5_schema.sh
@@ -31,7 +31,6 @@ cp temp/validator/schema/*.rnc result
 rsync -r --include=*.rnc temp/validator/schema/* result
 rm -rf result/xhtml10
 ruby html5charref.rb > result/html5chars.ent
-git clone https://github.com/mdn/browser-compat-data

 echo
 echo ">>>>> Patching html5 schema"
@@ -52,10 +51,15 @@ echo ">>>>> Moving items in place"
 cp result/html5-all.rnc result/html5.rnc
 cp result/xhtml5-all.rnc result/xhtml5.rnc
 mv result/html5/LICENSE result
+
+# Retain our SVG 2.0 support
+cp -R html5-schema/svg20 result
+
+# Remove unnecessary files
+rm result/html5/.htaccess
+rm result/html5/assertions.sch
+
+# Update html5-schema dir
 rm -rf html5-schema
 mv result html5-schema
-rsync -r --include=*.json browser-compat-data/html/* ../../../xml-psi-impl/src/com/intellij/xml/util/documentation/compatData
-rsync -r --include=*.json browser-compat-data/mathml/* ../../../xml-psi-impl/src/com/intellij/xml/util/documentation/compatData/mathml
-rsync -r --include=*.json browser-compat-data/svg/* ../../../xml-psi-impl/src/com/intellij/xml/util/documentation/compatData/svg
 rm -rf temp
-rm -rf browser-compat-data