// Copyright 2011 The Go Authors. All rights reserved.

// Use of this source code is governed by a BSD-style

// license that can be found in the LICENSE file.

package html

import (

	"strings"

)

func adjustAttributeNames(aa []Attribute, nameMap map[string]string) {

	for i := range aa {

		if newName, ok := nameMap[aa[i].Key]; ok {

			aa[i].Key = newName

		}

	}

}

func adjustForeignAttributes(aa []Attribute) {

	for i, a := range aa {

		if a.Key == "" || a.Key[0] != 'x' {

			continue

		}

		switch a.Key {

		case "xlink:actuate", "xlink:arcrole", "xlink:href", "xlink:role", "xlink:show",

			"xlink:title", "xlink:type", "xml:base", "xml:lang", "xml:space", "xmlns:xlink":

			j := strings.Index(a.Key, ":")

			aa[i].Namespace = a.Key[:j]

			aa[i].Key = a.Key[j+1:]

		}

	}

}

func htmlIntegrationPoint(n *Node) bool {

	if n.Type != ElementNode {

		return false

	}

	switch n.Namespace {

	case "math":

		if n.Data == "annotation-xml" {

			for _, a := range n.Attr {

				if a.Key == "encoding" {

					val := strings.ToLower(a.Val)

					if val == "text/html" || val == "application/xhtml+xml" {

						return true

					}

				}

			}

		}

	case "svg":

		switch n.Data {

		case "desc", "foreignObject", "title":

			return true

		}

	}

	return false

}

func mathMLTextIntegrationPoint(n *Node) bool {

	if n.Namespace != "math" {

		return false

	}

	switch n.Data {

	case "mi", "mo", "mn", "ms", "mtext":

		return true

	}

	return false

}

// Section 12.2.6.5.

var breakout = map[string]bool{

	"b":          true,

	"big":        true,

	"blockquote": true,

	"body":       true,

	"br":         true,

	"center":     true,

	"code":       true,

	"dd":         true,

	"div":        true,

	"dl":         true,

	"dt":         true,

	"em":         true,

	"embed":      true,

	"h1":         true,

	"h2":         true,

	"h3":         true,

	"h4":         true,

	"h5":         true,

	"h6":         true,

	"head":       true,

	"hr":         true,

	"i":          true,

	"img":        true,

	"li":         true,

	"listing":    true,

	"menu":       true,

	"meta":       true,

	"nobr":       true,

	"ol":         true,

	"p":          true,

	"pre":        true,

	"ruby":       true,

	"s":          true,

	"small":      true,

	"span":       true,

	"strong":     true,

	"strike":     true,

	"sub":        true,

	"sup":        true,

	"table":      true,

	"tt":         true,

	"u":          true,

	"ul":         true,

	"var":        true,

}

// Section 12.2.6.5.

var svgTagNameAdjustments = map[string]string{

	"altglyph":            "altGlyph",

	"altglyphdef":         "altGlyphDef",

	"altglyphitem":        "altGlyphItem",

	"animatecolor":        "animateColor",

	"animatemotion":       "animateMotion",

	"animatetransform":    "animateTransform",

	"clippath":            "clipPath",

	"feblend":             "feBlend",

	"fecolormatrix":       "feColorMatrix",

	"fecomponenttransfer": "feComponentTransfer",

	"fecomposite":         "feComposite",

	"feconvolvematrix":    "feConvolveMatrix",

	"fediffuselighting":   "feDiffuseLighting",

	"fedisplacementmap":   "feDisplacementMap",

	"fedistantlight":      "feDistantLight",

	"feflood":             "feFlood",

	"fefunca":             "feFuncA",

	"fefuncb":             "feFuncB",

	"fefuncg":             "feFuncG",

	"fefuncr":             "feFuncR",

	"fegaussianblur":      "feGaussianBlur",

	"feimage":             "feImage",

	"femerge":             "feMerge",

	"femergenode":         "feMergeNode",

	"femorphology":        "feMorphology",

	"feoffset":            "feOffset",

	"fepointlight":        "fePointLight",

	"fespecularlighting":  "feSpecularLighting",

	"fespotlight":         "feSpotLight",

	"fetile":              "feTile",

	"feturbulence":        "feTurbulence",

	"foreignobject":       "foreignObject",

	"glyphref":            "glyphRef",

	"lineargradient":      "linearGradient",

	"radialgradient":      "radialGradient",

	"textpath":            "textPath",

}

// Section 12.2.6.1

var mathMLAttributeAdjustments = map[string]string{

	"definitionurl": "definitionURL",

}

var svgAttributeAdjustments = map[string]string{

	"attributename":       "attributeName",

	"attributetype":       "attributeType",

	"basefrequency":       "baseFrequency",

	"baseprofile":         "baseProfile",

	"calcmode":            "calcMode",

	"clippathunits":       "clipPathUnits",

	"diffuseconstant":     "diffuseConstant",

	"edgemode":            "edgeMode",

	"filterunits":         "filterUnits",

	"glyphref":            "glyphRef",

	"gradienttransform":   "gradientTransform",

	"gradientunits":       "gradientUnits",

	"kernelmatrix":        "kernelMatrix",

	"kernelunitlength":    "kernelUnitLength",

	"keypoints":           "keyPoints",

	"keysplines":          "keySplines",

	"keytimes":            "keyTimes",

	"lengthadjust":        "lengthAdjust",

	"limitingconeangle":   "limitingConeAngle",

	"markerheight":        "markerHeight",

	"markerunits":         "markerUnits",

	"markerwidth":         "markerWidth",

	"maskcontentunits":    "maskContentUnits",

	"maskunits":           "maskUnits",

	"numoctaves":          "numOctaves",

	"pathlength":          "pathLength",

	"patterncontentunits": "patternContentUnits",

	"patterntransform":    "patternTransform",

	"patternunits":        "patternUnits",

	"pointsatx":           "pointsAtX",

	"pointsaty":           "pointsAtY",

	"pointsatz":           "pointsAtZ",

	"preservealpha":       "preserveAlpha",

	"preserveaspectratio": "preserveAspectRatio",

	"primitiveunits":      "primitiveUnits",

	"refx":                "refX",

	"refy":                "refY",

	"repeatcount":         "repeatCount",

	"repeatdur":           "repeatDur",

	"requiredextensions":  "requiredExtensions",

	"requiredfeatures":    "requiredFeatures",

	"specularconstant":    "specularConstant",

	"specularexponent":    "specularExponent",

	"spreadmethod":        "spreadMethod",

	"startoffset":         "startOffset",

	"stddeviation":        "stdDeviation",

	"stitchtiles":         "stitchTiles",

	"surfacescale":        "surfaceScale",

	"systemlanguage":      "systemLanguage",

	"tablevalues":         "tableValues",

	"targetx":             "targetX",

	"targety":             "targetY",

	"textlength":          "textLength",

	"viewbox":             "viewBox",

	"viewtarget":          "viewTarget",

	"xchannelselector":    "xChannelSelector",

	"ychannelselector":    "yChannelSelector",

	"zoomandpan":          "zoomAndPan",

}