Browsable HTML Grammar

Grammar extracted by Vadim Zaytsev, see the Grammar Zoo entry for details: html/clark/basic/extracted
Source used for this grammar: James Clark, Modularization of XHTML in RELAX NG, xhtml-basic.rng, 28-Oct-2008

Summary

• Total 158 production rules with 191 top alternatives and 956 symbols.
• Vocabulary: 277 = 148 nonterminals + 25 terminals + 104 labels + 0 markers.
• Total 148 nonterminal symbols: 148 defined (id.attrib, class.attrib, title.attrib, Core.attrib, lang.attrib, I18n.attrib, Common.attrib, CommonIdRequired.attrib, base, base.attlist, head.content, Length.datatype, LinkTypes.datatype, MediaDesc.datatype, MultiLength.datatype, Number.datatype, Pixels.datatype, Script.datatype, Text.datatype, Character.datatype, Charset.datatype, Charsets.datatype, ContentType.datatype, ContentTypes.datatype, Datetime.datatype, FPI.datatype, LanguageCode.datatype, URI.datatype, URIs.datatype, NMTOKEN.datatype, NMTOKENS.datatype, ID.datatype, IDREF.datatype, IDREFS.datatype, form, form.attlist, label, label.attlist, input, input.attlist, InputType.class, select, select.attlist, option, textarea, textarea.attlist, Form.class, Formctrl.class, Block.class, Inline.class, a, a.attlist, img, img.attlist, link, link.attlist, dl, dl.attlist, dt, dt.attlist, dd, dd.attlist, ol, ol.attlist, ul, ul.attlist, li, li.attlist, List.class, meta, meta.attlist, object, object.attlist, param, param.attlist, title, title.attlist, head, head.attlist, profile.attlist, body, body.attlist, html, html.attlist, XHTML.version.attrib, table, table.attlist, caption, caption.attlist, tr, tr.attlist, th, th.attlist, td, td.attlist, Cell.attrib, CellHAlign.attrib, CellVAlign.attrib, scope.attrib, br, br.attlist, span, span.attlist, abbr, abbr.attlist, acronym, acronym.attlist, cite, cite.attlist, code, code.attlist, dfn, dfn.attlist, em, em.attlist, kbd, kbd.attlist, q, q.attlist, samp, samp.attlist, strong, strong.attlist, var, var.attlist, div, div.attlist, p, p.attlist, address, address.attlist, blockquote, blockquote.attlist, pre, pre.attlist, h1, h2, h3, h4, h5, h6, Heading.attrib, Heading.content, Heading.class, Inline.model, Block.mix, Block.model, Flow.model), 1 root (html), 7 top (CommonIdRequired.attrib, MultiLength.datatype, Pixels.datatype, Script.datatype, Charsets.datatype, ContentTypes.datatype, Datetime.datatype), 0 bottom (—).
• Total 25 terminal symbols: 25 keywords ("get", "post", "checked", "text", "password", "checkbox", "radio", "submit", "reset", "hidden", "multiple", "selected", "declare", "data", "ref", "object", "left", "center", "right", "top", "middle", "bottom", "row", "col", "preserve"), 0 letters (—), 0 numerics (—), 0 signs (—).
• Total 104 labels: [id] ², [class], [title] ², [xml:lang], [base], [href] ³, [form], [action], [method], [enctype], [label], [for], [accesskey] ⁴, [input], [type] ⁵, [name] ⁶, [value] ³, [checked], [size] ², [maxlength], [src] ², [select], [multiple], [selected], [option], [textarea], [rows], [cols], [a], [charset] ², [hreflang] ², [rel] ², [rev] ², [tabindex] ², [img], [alt], [longdesc], [height] ², [width] ², [link], [media], [dl], [dt], [dd], [ol], [ul], [li], [meta], [http-equiv], [content], [scheme], [object], [declare], [classid], [codebase], [data], [codetype], [archive], [standby], [param], [valuetype], [head], [profile], [body], [html], [version], [table], [summary], [caption], [tr], [th], [td], [abbr] ², [axis], [headers], [rowspan], [colspan], [align], [valign], [scope], [br], [span], [acronym], [cite] ³, [code], [dfn], [em], [kbd], [q], [samp], [strong], [var], [div], [p], [address], [blockquote], [pre], [xml:space], [h1], [h2], [h3], [h4], [h5], [h6].

Syntax

id.attrib ::=
	[id]::ID.datatype?

class.attrib ::=
	[class]::NMTOKENS.datatype?

title.attrib ::=
	[title]::Text.datatype?

Core.attrib ::=
	id.attrib class.attrib title.attrib

lang.attrib ::=
	[xml:lang]::LanguageCode.datatype?

I18n.attrib ::=
	lang.attrib

Common.attrib ::=
	Core.attrib I18n.attrib

CommonIdRequired.attrib ::=
	[id]::ID.datatype class.attrib title.attrib I18n.attrib

base ::=
	[base]::base.attlist

base.attlist ::=
	[href]::URI.datatype

head.content ::=
	base?

head.content ::=
	link*

head.content ::=
	meta*

head.content ::=
	title

Length.datatype ::=
	string

LinkTypes.datatype ::=
	NMTOKENS.datatype

MediaDesc.datatype ::=
	string

MultiLength.datatype ::=
	string

Number.datatype ::=
	string

Pixels.datatype ::=
	string

Script.datatype ::=
	string

Text.datatype ::=
	string

Character.datatype ::=
	string

Charset.datatype ::=
	string

Charsets.datatype ::=
	string

ContentType.datatype ::=
	string

ContentTypes.datatype ::=
	string

Datetime.datatype ::=
	string

FPI.datatype ::=
	string

LanguageCode.datatype ::=
	string

URI.datatype ::=
	string

URIs.datatype ::=
	string

NMTOKEN.datatype ::=
	string

NMTOKENS.datatype ::=
	string

ID.datatype ::=
	string

IDREF.datatype ::=
	string

IDREFS.datatype ::=
	string

form ::=
	[form]::(form.attlist Block.class+)

form.attlist ::=
	Common.attrib [action]::URI.datatype [method]::("get" | "post")? [enctype]::ContentType.datatype?

label ::=
	[label]::(label.attlist Inline.model)

label.attlist ::=
	Common.attrib [for]::IDREF.datatype? [accesskey]::Character.datatype?

input ::=
	[input]::input.attlist

input.attlist ::=
	Common.attrib [type]::InputType.class? [name]::string? [value]::string? [checked]::"checked"? [size]::string? [maxlength]::Number.datatype? [src]::URI.datatype? [accesskey]::Character.datatype?

InputType.class ::=
	"text"
	"password"
	"checkbox"
	"radio"
	"submit"
	"reset"
	"hidden"

select ::=
	[select]::(select.attlist option+)

select.attlist ::=
	Common.attrib [name]::string? [size]::Number.datatype? [multiple]::"multiple"?

option ::=
	[option]::(Common.attrib [selected]::"selected"? [value]::string? string)

textarea ::=
	[textarea]::textarea.attlist

textarea.attlist ::=
	Common.attrib [name]::string? [rows]::Number.datatype [cols]::Number.datatype [accesskey]::Character.datatype? string

Form.class ::=
	form

Formctrl.class ::=
	input
	label
	select
	textarea

Block.class ::=
	Form.class

Block.class ::=
	List.class

Block.class ::=
	table

Block.class ::=
	address
	blockquote
	div
	p
	pre
	Heading.class

Inline.class ::=
	Formctrl.class

Inline.class ::=
	a

Inline.class ::=
	img

Inline.class ::=
	object

Inline.class ::=
	abbr
	acronym
	br
	cite
	code
	dfn
	em
	kbd
	q
	samp
	span
	strong
	var

a ::=
	[a]::(a.attlist Inline.model)

a.attlist ::=
	Common.attrib [href]::URI.datatype? [charset]::Charset.datatype? [type]::ContentType.datatype? [hreflang]::LanguageCode.datatype? [rel]::LinkTypes.datatype? [rev]::LinkTypes.datatype? [accesskey]::Character.datatype? [tabindex]::Number.datatype?

img ::=
	[img]::img.attlist

img.attlist ::=
	Common.attrib [src]::URI.datatype [alt]::Text.datatype [longdesc]::URI.datatype? [height]::Length.datatype? [width]::Length.datatype?

link ::=
	[link]::link.attlist

link.attlist ::=
	Common.attrib [charset]::Charset.datatype? [href]::URI.datatype? [hreflang]::LanguageCode.datatype? [type]::ContentType.datatype? [rel]::LinkTypes.datatype? [rev]::LinkTypes.datatype? [media]::MediaDesc.datatype?

dl ::=
	[dl]::(dl.attlist (dt | dd)+)

dl.attlist ::=
	Common.attrib

dt ::=
	[dt]::(dt.attlist Inline.model)

dt.attlist ::=
	Common.attrib

dd ::=
	[dd]::(dd.attlist Flow.model)

dd.attlist ::=
	Common.attrib

ol ::=
	[ol]::(ol.attlist li+)

ol.attlist ::=
	Common.attrib

ul ::=
	[ul]::(ul.attlist li+)

ul.attlist ::=
	Common.attrib

li ::=
	[li]::(li.attlist Flow.model)

li.attlist ::=
	Common.attrib

List.class ::=
	ul
	ol
	dl

meta ::=
	[meta]::meta.attlist

meta.attlist ::=
	I18n.attrib [http-equiv]::NMTOKEN.datatype? [name]::NMTOKEN.datatype? [content]::string? [scheme]::string?

object ::=
	[object]::(object.attlist param* Flow.model)

object.attlist ::=
	Common.attrib [declare]::"declare"? [classid]::URI.datatype? [codebase]::URI.datatype? [data]::URI.datatype? [type]::ContentType.datatype? [codetype]::ContentType.datatype? [archive]::URIs.datatype? [standby]::Text.datatype? [height]::Length.datatype? [width]::Length.datatype? [name]::string? [tabindex]::Number.datatype?

param ::=
	[param]::param.attlist

param.attlist ::=
	id.attrib [name]::string [value]::string? [valuetype]::("data" | "ref" | "object")? [type]::ContentType.datatype?

title ::=
	[title]::(title.attlist string)

title.attlist ::=
	I18n.attrib

head ::=
	[head]::(head.attlist head.content)

head.attlist ::=
	I18n.attrib profile.attlist

profile.attlist ::=
	[profile]::URI.datatype?

body ::=
	[body]::(body.attlist Block.model)

body.attlist ::=
	Common.attrib

html ::=
	[html]::(html.attlist head body)

html.attlist ::=
	XHTML.version.attrib I18n.attrib

XHTML.version.attrib ::=
	[version]::FPI.datatype?

table ::=
	[table]::(table.attlist caption? tr+)

table.attlist ::=
	Common.attrib [summary]::Text.datatype?

caption ::=
	[caption]::(caption.attlist Inline.model)

caption.attlist ::=
	Common.attrib

tr ::=
	[tr]::(tr.attlist (th | td)+)

tr.attlist ::=
	Common.attrib CellHAlign.attrib CellVAlign.attrib

th ::=
	[th]::(th.attlist Flow.model)

th.attlist ::=
	Cell.attrib

td ::=
	[td]::(td.attlist Flow.model)

td.attlist ::=
	Cell.attrib

Cell.attrib ::=
	Common.attrib [abbr]::Text.datatype? [axis]::string? [headers]::IDREFS.datatype? scope.attrib [rowspan]::Number.datatype? [colspan]::Number.datatype? CellHAlign.attrib CellVAlign.attrib

CellHAlign.attrib ::=
	[align]::("left" | "center" | "right")?

CellVAlign.attrib ::=
	[valign]::("top" | "middle" | "bottom")?

scope.attrib ::=
	[scope]::("row" | "col")?

br ::=
	[br]::br.attlist

br.attlist ::=
	Core.attrib

span ::=
	[span]::(span.attlist Inline.model)

span.attlist ::=
	Common.attrib

abbr ::=
	[abbr]::(abbr.attlist Inline.model)

abbr.attlist ::=
	Common.attrib

acronym ::=
	[acronym]::(acronym.attlist Inline.model)

acronym.attlist ::=
	Common.attrib

cite ::=
	[cite]::(cite.attlist Inline.model)

cite.attlist ::=
	Common.attrib

code ::=
	[code]::(code.attlist Inline.model)

code.attlist ::=
	Common.attrib

dfn ::=
	[dfn]::(dfn.attlist Inline.model)

dfn.attlist ::=
	Common.attrib

em ::=
	[em]::(em.attlist Inline.model)

em.attlist ::=
	Common.attrib

kbd ::=
	[kbd]::(kbd.attlist Inline.model)

kbd.attlist ::=
	Common.attrib

q ::=
	[q]::(q.attlist Inline.model)

q.attlist ::=
	Common.attrib [cite]::URI.datatype?

samp ::=
	[samp]::(samp.attlist Inline.model)

samp.attlist ::=
	Common.attrib

strong ::=
	[strong]::(strong.attlist Inline.model)

strong.attlist ::=
	Common.attrib

var ::=
	[var]::(var.attlist Inline.model)

var.attlist ::=
	Common.attrib

div ::=
	[div]::(div.attlist Flow.model)

div.attlist ::=
	Common.attrib

p ::=
	[p]::(p.attlist Inline.model)

p.attlist ::=
	Common.attrib

address ::=
	[address]::(address.attlist Inline.model)

address.attlist ::=
	Common.attrib

blockquote ::=
	[blockquote]::(blockquote.attlist Block.model)

blockquote.attlist ::=
	Common.attrib [cite]::URI.datatype?

pre ::=
	[pre]::(pre.attlist Inline.model)

pre.attlist ::=
	Common.attrib [xml:space]::"preserve"?

h1 ::=
	[h1]::(Heading.attrib Heading.content)

h2 ::=
	[h2]::(Heading.attrib Heading.content)

h3 ::=
	[h3]::(Heading.attrib Heading.content)

h4 ::=
	[h4]::(Heading.attrib Heading.content)

h5 ::=
	[h5]::(Heading.attrib Heading.content)

h6 ::=
	[h6]::(Heading.attrib Heading.content)

Heading.attrib ::=
	Common.attrib

Heading.content ::=
	Inline.model

Heading.class ::=
	h1
	h2
	h3
	h4
	h5
	h6

Inline.model ::=
	(string | Inline.class)*

Block.mix ::=
	Block.class

Block.model ::=
	Block.mix+

Flow.model ::=
	(string | Inline.class | Block.class)*

Maintained by Dr. Vadim Zaytsev a.k.a. @grammarware. Last updated in September 2015. [↑]