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// Copyright 2011 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package html
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// Section 12.2.4.2 of the HTML5 specification says "The following elements
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// have varying levels of special parsing rules".
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// https://html.spec.whatwg.org/multipage/syntax.html#the-stack-of-open-elements
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var isSpecialElementMap = map[string]bool{
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	"address":    true,
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	"applet":     true,
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	"area":       true,
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	"article":    true,
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	"aside":      true,
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	"base":       true,
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	"basefont":   true,
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	"bgsound":    true,
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	"blockquote": true,
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	"body":       true,
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	"br":         true,
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	"button":     true,
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	"caption":    true,
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	"center":     true,
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	"col":        true,
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	"colgroup":   true,
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	"dd":         true,
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	"details":    true,
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	"dir":        true,
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	"div":        true,
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	"dl":         true,
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	"dt":         true,
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	"embed":      true,
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	"fieldset":   true,
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	"figcaption": true,
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	"figure":     true,
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	"footer":     true,
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	"form":       true,
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	"frame":      true,
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	"frameset":   true,
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	"h1":         true,
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	"h2":         true,
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	"h3":         true,
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	"h4":         true,
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	"h5":         true,
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	"h6":         true,
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	"head":       true,
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	"header":     true,
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	"hgroup":     true,
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	"hr":         true,
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	"html":       true,
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	"iframe":     true,
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	"img":        true,
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	"input":      true,
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	"keygen":     true, // "keygen" has been removed from the spec, but are kept here for backwards compatibility.
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	"li":         true,
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	"link":       true,
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	"listing":    true,
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	"main":       true,
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	"marquee":    true,
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	"menu":       true,
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	"meta":       true,
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	"nav":        true,
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	"noembed":    true,
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	"noframes":   true,
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	"noscript":   true,
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	"object":     true,
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	"ol":         true,
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	"p":          true,
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	"param":      true,
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	"plaintext":  true,
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	"pre":        true,
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	"script":     true,
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	"section":    true,
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	"select":     true,
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	"source":     true,
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	"style":      true,
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	"summary":    true,
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	"table":      true,
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	"tbody":      true,
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	"td":         true,
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	"template":   true,
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	"textarea":   true,
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	"tfoot":      true,
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	"th":         true,
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	"thead":      true,
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	"title":      true,
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	"tr":         true,
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	"track":      true,
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	"ul":         true,
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	"wbr":        true,
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	"xmp":        true,
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}
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func isSpecialElement(element *Node) bool {
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	switch element.Namespace {
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	case "", "html":
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		return isSpecialElementMap[element.Data]
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	case "math":
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		switch element.Data {
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		case "mi", "mo", "mn", "ms", "mtext", "annotation-xml":
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			return true
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		}
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	case "svg":
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		switch element.Data {
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		case "foreignObject", "desc", "title":
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			return true
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		}
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	}
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	return false
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}
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