vendor/golang.org/x/net/html/foreign.go

   1 // Copyright 2011 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 package html
   6
   7 import (
   8         "strings"
   9 )
  10
  11 func adjustAttributeNames(aa []Attribute, nameMap map[string]string) {
  12         for i := range aa {
  13                 if newName, ok := nameMap[aa[i].Key]; ok {
  14                         aa[i].Key = newName
  15                 }
  16         }
  17 }
  18
  19 func adjustForeignAttributes(aa []Attribute) {
  20         for i, a := range aa {
  21                 if a.Key == "" || a.Key[0] != 'x' {
  22                         continue
  23                 }
  24                 switch a.Key {
  25                 case "xlink:actuate", "xlink:arcrole", "xlink:href", "xlink:role", "xlink:show",
  26                         "xlink:title", "xlink:type", "xml:base", "xml:lang", "xml:space", "xmlns:xlink":
  27                         j := strings.Index(a.Key, ":")
  28                         aa[i].Namespace = a.Key[:j]
  29                         aa[i].Key = a.Key[j+1:]
  30                 }
  31         }
  32 }
  33
  34 func htmlIntegrationPoint(n *Node) bool {
  35         if n.Type != ElementNode {
  36                 return false
  37         }
  38         switch n.Namespace {
  39         case "math":
  40                 if n.Data == "annotation-xml" {
  41                         for _, a := range n.Attr {
  42                                 if a.Key == "encoding" {
  43                                         val := strings.ToLower(a.Val)
  44                                         if val == "text/html" || val == "application/xhtml+xml" {
  45                                                 return true
  46                                         }
  47                                 }
  48                         }
  49                 }
  50         case "svg":
  51                 switch n.Data {
  52                 case "desc", "foreignObject", "title":
  53                         return true
  54                 }
  55         }
  56         return false
  57 }
  58
  59 func mathMLTextIntegrationPoint(n *Node) bool {
  60         if n.Namespace != "math" {
  61                 return false
  62         }
  63         switch n.Data {
  64         case "mi", "mo", "mn", "ms", "mtext":
  65                 return true
  66         }
  67         return false
  68 }
  69
  70 // Section 12.2.5.5.
  71 var breakout = map[string]bool{
  72         "b":          true,
  73         "big":        true,
  74         "blockquote": true,
  75         "body":       true,
  76         "br":         true,
  77         "center":     true,
  78         "code":       true,
  79         "dd":         true,
  80         "div":        true,
  81         "dl":         true,
  82         "dt":         true,
  83         "em":         true,
  84         "embed":      true,
  85         "h1":         true,
  86         "h2":         true,
  87         "h3":         true,
  88         "h4":         true,
  89         "h5":         true,
  90         "h6":         true,
  91         "head":       true,
  92         "hr":         true,
  93         "i":          true,
  94         "img":        true,
  95         "li":         true,
  96         "listing":    true,
  97         "menu":       true,
  98         "meta":       true,
  99         "nobr":       true,
 100         "ol":         true,
 101         "p":          true,
 102         "pre":        true,
 103         "ruby":       true,
 104         "s":          true,
 105         "small":      true,
 106         "span":       true,
 107         "strong":     true,
 108         "strike":     true,
 109         "sub":        true,
 110         "sup":        true,
 111         "table":      true,
 112         "tt":         true,
 113         "u":          true,
 114         "ul":         true,
 115         "var":        true,
 116 }
 117
 118 // Section 12.2.5.5.
 119 var svgTagNameAdjustments = map[string]string{
 120         "altglyph":            "altGlyph",
 121         "altglyphdef":         "altGlyphDef",
 122         "altglyphitem":        "altGlyphItem",
 123         "animatecolor":        "animateColor",
 124         "animatemotion":       "animateMotion",
 125         "animatetransform":    "animateTransform",
 126         "clippath":            "clipPath",
 127         "feblend":             "feBlend",
 128         "fecolormatrix":       "feColorMatrix",
 129         "fecomponenttransfer": "feComponentTransfer",
 130         "fecomposite":         "feComposite",
 131         "feconvolvematrix":    "feConvolveMatrix",
 132         "fediffuselighting":   "feDiffuseLighting",
 133         "fedisplacementmap":   "feDisplacementMap",
 134         "fedistantlight":      "feDistantLight",
 135         "feflood":             "feFlood",
 136         "fefunca":             "feFuncA",
 137         "fefuncb":             "feFuncB",
 138         "fefuncg":             "feFuncG",
 139         "fefuncr":             "feFuncR",
 140         "fegaussianblur":      "feGaussianBlur",
 141         "feimage":             "feImage",
 142         "femerge":             "feMerge",
 143         "femergenode":         "feMergeNode",
 144         "femorphology":        "feMorphology",
 145         "feoffset":            "feOffset",
 146         "fepointlight":        "fePointLight",
 147         "fespecularlighting":  "feSpecularLighting",
 148         "fespotlight":         "feSpotLight",
 149         "fetile":              "feTile",
 150         "feturbulence":        "feTurbulence",
 151         "foreignobject":       "foreignObject",
 152         "glyphref":            "glyphRef",
 153         "lineargradient":      "linearGradient",
 154         "radialgradient":      "radialGradient",
 155         "textpath":            "textPath",
 156 }
 157
 158 // Section 12.2.5.1
 159 var mathMLAttributeAdjustments = map[string]string{
 160         "definitionurl": "definitionURL",
 161 }
 162
 163 var svgAttributeAdjustments = map[string]string{
 164         "attributename":             "attributeName",
 165         "attributetype":             "attributeType",
 166         "basefrequency":             "baseFrequency",
 167         "baseprofile":               "baseProfile",
 168         "calcmode":                  "calcMode",
 169         "clippathunits":             "clipPathUnits",
 170         "contentscripttype":         "contentScriptType",
 171         "contentstyletype":          "contentStyleType",
 172         "diffuseconstant":           "diffuseConstant",
 173         "edgemode":                  "edgeMode",
 174         "externalresourcesrequired": "externalResourcesRequired",
 175         "filterres":                 "filterRes",
 176         "filterunits":               "filterUnits",
 177         "glyphref":                  "glyphRef",
 178         "gradienttransform":         "gradientTransform",
 179         "gradientunits":             "gradientUnits",
 180         "kernelmatrix":              "kernelMatrix",
 181         "kernelunitlength":          "kernelUnitLength",
 182         "keypoints":                 "keyPoints",
 183         "keysplines":                "keySplines",
 184         "keytimes":                  "keyTimes",
 185         "lengthadjust":              "lengthAdjust",
 186         "limitingconeangle":         "limitingConeAngle",
 187         "markerheight":              "markerHeight",
 188         "markerunits":               "markerUnits",
 189         "markerwidth":               "markerWidth",
 190         "maskcontentunits":          "maskContentUnits",
 191         "maskunits":                 "maskUnits",
 192         "numoctaves":                "numOctaves",
 193         "pathlength":                "pathLength",
 194         "patterncontentunits":       "patternContentUnits",
 195         "patterntransform":          "patternTransform",
 196         "patternunits":              "patternUnits",
 197         "pointsatx":                 "pointsAtX",
 198         "pointsaty":                 "pointsAtY",
 199         "pointsatz":                 "pointsAtZ",
 200         "preservealpha":             "preserveAlpha",
 201         "preserveaspectratio":       "preserveAspectRatio",
 202         "primitiveunits":            "primitiveUnits",
 203         "refx":                      "refX",
 204         "refy":                      "refY",
 205         "repeatcount":               "repeatCount",
 206         "repeatdur":                 "repeatDur",
 207         "requiredextensions":        "requiredExtensions",
 208         "requiredfeatures":          "requiredFeatures",
 209         "specularconstant":          "specularConstant",
 210         "specularexponent":          "specularExponent",
 211         "spreadmethod":              "spreadMethod",
 212         "startoffset":               "startOffset",
 213         "stddeviation":              "stdDeviation",
 214         "stitchtiles":               "stitchTiles",
 215         "surfacescale":              "surfaceScale",
 216         "systemlanguage":            "systemLanguage",
 217         "tablevalues":               "tableValues",
 218         "targetx":                   "targetX",
 219         "targety":                   "targetY",
 220         "textlength":                "textLength",
 221         "viewbox":                   "viewBox",
 222         "viewtarget":                "viewTarget",
 223         "xchannelselector":          "xChannelSelector",
 224         "ychannelselector":          "yChannelSelector",
 225         "zoomandpan":                "zoomAndPan",
 226 }