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260 lines
9.2 KiB
JavaScript
260 lines
9.2 KiB
JavaScript
'use strict';
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var Tokenizer = require('../tokenizer'),
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HTML = require('./html');
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//Aliases
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var $ = HTML.TAG_NAMES,
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NS = HTML.NAMESPACES,
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ATTRS = HTML.ATTRS;
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//MIME types
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var MIME_TYPES = {
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TEXT_HTML: 'text/html',
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APPLICATION_XML: 'application/xhtml+xml'
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};
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//Attributes
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var DEFINITION_URL_ATTR = 'definitionurl',
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ADJUSTED_DEFINITION_URL_ATTR = 'definitionURL',
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SVG_ATTRS_ADJUSTMENT_MAP = {
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'attributename': 'attributeName',
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'attributetype': 'attributeType',
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'basefrequency': 'baseFrequency',
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'baseprofile': 'baseProfile',
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'calcmode': 'calcMode',
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'clippathunits': 'clipPathUnits',
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'diffuseconstant': 'diffuseConstant',
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'edgemode': 'edgeMode',
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'filterunits': 'filterUnits',
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'glyphref': 'glyphRef',
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'gradienttransform': 'gradientTransform',
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'gradientunits': 'gradientUnits',
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'kernelmatrix': 'kernelMatrix',
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'kernelunitlength': 'kernelUnitLength',
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'keypoints': 'keyPoints',
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'keysplines': 'keySplines',
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'keytimes': 'keyTimes',
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'lengthadjust': 'lengthAdjust',
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'limitingconeangle': 'limitingConeAngle',
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'markerheight': 'markerHeight',
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'markerunits': 'markerUnits',
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'markerwidth': 'markerWidth',
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'maskcontentunits': 'maskContentUnits',
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'maskunits': 'maskUnits',
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'numoctaves': 'numOctaves',
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'pathlength': 'pathLength',
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'patterncontentunits': 'patternContentUnits',
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'patterntransform': 'patternTransform',
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'patternunits': 'patternUnits',
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'pointsatx': 'pointsAtX',
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'pointsaty': 'pointsAtY',
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'pointsatz': 'pointsAtZ',
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'preservealpha': 'preserveAlpha',
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'preserveaspectratio': 'preserveAspectRatio',
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'primitiveunits': 'primitiveUnits',
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'refx': 'refX',
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'refy': 'refY',
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'repeatcount': 'repeatCount',
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'repeatdur': 'repeatDur',
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'requiredextensions': 'requiredExtensions',
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'requiredfeatures': 'requiredFeatures',
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'specularconstant': 'specularConstant',
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'specularexponent': 'specularExponent',
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'spreadmethod': 'spreadMethod',
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'startoffset': 'startOffset',
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'stddeviation': 'stdDeviation',
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'stitchtiles': 'stitchTiles',
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'surfacescale': 'surfaceScale',
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'systemlanguage': 'systemLanguage',
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'tablevalues': 'tableValues',
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'targetx': 'targetX',
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'targety': 'targetY',
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'textlength': 'textLength',
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'viewbox': 'viewBox',
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'viewtarget': 'viewTarget',
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'xchannelselector': 'xChannelSelector',
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'ychannelselector': 'yChannelSelector',
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'zoomandpan': 'zoomAndPan'
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},
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XML_ATTRS_ADJUSTMENT_MAP = {
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'xlink:actuate': {prefix: 'xlink', name: 'actuate', namespace: NS.XLINK},
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'xlink:arcrole': {prefix: 'xlink', name: 'arcrole', namespace: NS.XLINK},
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'xlink:href': {prefix: 'xlink', name: 'href', namespace: NS.XLINK},
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'xlink:role': {prefix: 'xlink', name: 'role', namespace: NS.XLINK},
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'xlink:show': {prefix: 'xlink', name: 'show', namespace: NS.XLINK},
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'xlink:title': {prefix: 'xlink', name: 'title', namespace: NS.XLINK},
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'xlink:type': {prefix: 'xlink', name: 'type', namespace: NS.XLINK},
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'xml:base': {prefix: 'xml', name: 'base', namespace: NS.XML},
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'xml:lang': {prefix: 'xml', name: 'lang', namespace: NS.XML},
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'xml:space': {prefix: 'xml', name: 'space', namespace: NS.XML},
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'xmlns': {prefix: '', name: 'xmlns', namespace: NS.XMLNS},
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'xmlns:xlink': {prefix: 'xmlns', name: 'xlink', namespace: NS.XMLNS}
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};
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//SVG tag names adjustment map
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var SVG_TAG_NAMES_ADJUSTMENT_MAP = exports.SVG_TAG_NAMES_ADJUSTMENT_MAP = {
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'altglyph': 'altGlyph',
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'altglyphdef': 'altGlyphDef',
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'altglyphitem': 'altGlyphItem',
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'animatecolor': 'animateColor',
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'animatemotion': 'animateMotion',
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'animatetransform': 'animateTransform',
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'clippath': 'clipPath',
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'feblend': 'feBlend',
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'fecolormatrix': 'feColorMatrix',
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'fecomponenttransfer': 'feComponentTransfer',
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'fecomposite': 'feComposite',
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'feconvolvematrix': 'feConvolveMatrix',
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'fediffuselighting': 'feDiffuseLighting',
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'fedisplacementmap': 'feDisplacementMap',
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'fedistantlight': 'feDistantLight',
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'feflood': 'feFlood',
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'fefunca': 'feFuncA',
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'fefuncb': 'feFuncB',
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'fefuncg': 'feFuncG',
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'fefuncr': 'feFuncR',
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'fegaussianblur': 'feGaussianBlur',
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'feimage': 'feImage',
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'femerge': 'feMerge',
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'femergenode': 'feMergeNode',
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'femorphology': 'feMorphology',
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'feoffset': 'feOffset',
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'fepointlight': 'fePointLight',
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'fespecularlighting': 'feSpecularLighting',
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'fespotlight': 'feSpotLight',
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'fetile': 'feTile',
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'feturbulence': 'feTurbulence',
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'foreignobject': 'foreignObject',
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'glyphref': 'glyphRef',
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'lineargradient': 'linearGradient',
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'radialgradient': 'radialGradient',
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'textpath': 'textPath'
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};
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//Tags that causes exit from foreign content
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var EXITS_FOREIGN_CONTENT = Object.create(null);
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EXITS_FOREIGN_CONTENT[$.B] = true;
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EXITS_FOREIGN_CONTENT[$.BIG] = true;
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EXITS_FOREIGN_CONTENT[$.BLOCKQUOTE] = true;
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EXITS_FOREIGN_CONTENT[$.BODY] = true;
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EXITS_FOREIGN_CONTENT[$.BR] = true;
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EXITS_FOREIGN_CONTENT[$.CENTER] = true;
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EXITS_FOREIGN_CONTENT[$.CODE] = true;
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EXITS_FOREIGN_CONTENT[$.DD] = true;
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EXITS_FOREIGN_CONTENT[$.DIV] = true;
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EXITS_FOREIGN_CONTENT[$.DL] = true;
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EXITS_FOREIGN_CONTENT[$.DT] = true;
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EXITS_FOREIGN_CONTENT[$.EM] = true;
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EXITS_FOREIGN_CONTENT[$.EMBED] = true;
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EXITS_FOREIGN_CONTENT[$.H1] = true;
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EXITS_FOREIGN_CONTENT[$.H2] = true;
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EXITS_FOREIGN_CONTENT[$.H3] = true;
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EXITS_FOREIGN_CONTENT[$.H4] = true;
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EXITS_FOREIGN_CONTENT[$.H5] = true;
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EXITS_FOREIGN_CONTENT[$.H6] = true;
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EXITS_FOREIGN_CONTENT[$.HEAD] = true;
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EXITS_FOREIGN_CONTENT[$.HR] = true;
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EXITS_FOREIGN_CONTENT[$.I] = true;
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EXITS_FOREIGN_CONTENT[$.IMG] = true;
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EXITS_FOREIGN_CONTENT[$.LI] = true;
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EXITS_FOREIGN_CONTENT[$.LISTING] = true;
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EXITS_FOREIGN_CONTENT[$.MENU] = true;
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EXITS_FOREIGN_CONTENT[$.META] = true;
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EXITS_FOREIGN_CONTENT[$.NOBR] = true;
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EXITS_FOREIGN_CONTENT[$.OL] = true;
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EXITS_FOREIGN_CONTENT[$.P] = true;
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EXITS_FOREIGN_CONTENT[$.PRE] = true;
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EXITS_FOREIGN_CONTENT[$.RUBY] = true;
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EXITS_FOREIGN_CONTENT[$.S] = true;
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EXITS_FOREIGN_CONTENT[$.SMALL] = true;
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EXITS_FOREIGN_CONTENT[$.SPAN] = true;
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EXITS_FOREIGN_CONTENT[$.STRONG] = true;
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EXITS_FOREIGN_CONTENT[$.STRIKE] = true;
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EXITS_FOREIGN_CONTENT[$.SUB] = true;
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EXITS_FOREIGN_CONTENT[$.SUP] = true;
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EXITS_FOREIGN_CONTENT[$.TABLE] = true;
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EXITS_FOREIGN_CONTENT[$.TT] = true;
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EXITS_FOREIGN_CONTENT[$.U] = true;
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EXITS_FOREIGN_CONTENT[$.UL] = true;
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EXITS_FOREIGN_CONTENT[$.VAR] = true;
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//Check exit from foreign content
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exports.causesExit = function (startTagToken) {
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var tn = startTagToken.tagName;
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var isFontWithAttrs = tn === $.FONT && (Tokenizer.getTokenAttr(startTagToken, ATTRS.COLOR) !== null ||
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Tokenizer.getTokenAttr(startTagToken, ATTRS.SIZE) !== null ||
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Tokenizer.getTokenAttr(startTagToken, ATTRS.FACE) !== null);
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return isFontWithAttrs ? true : EXITS_FOREIGN_CONTENT[tn];
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};
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//Token adjustments
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exports.adjustTokenMathMLAttrs = function (token) {
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for (var i = 0; i < token.attrs.length; i++) {
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if (token.attrs[i].name === DEFINITION_URL_ATTR) {
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token.attrs[i].name = ADJUSTED_DEFINITION_URL_ATTR;
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break;
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}
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}
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};
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exports.adjustTokenSVGAttrs = function (token) {
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for (var i = 0; i < token.attrs.length; i++) {
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var adjustedAttrName = SVG_ATTRS_ADJUSTMENT_MAP[token.attrs[i].name];
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if (adjustedAttrName)
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token.attrs[i].name = adjustedAttrName;
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}
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};
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exports.adjustTokenXMLAttrs = function (token) {
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for (var i = 0; i < token.attrs.length; i++) {
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var adjustedAttrEntry = XML_ATTRS_ADJUSTMENT_MAP[token.attrs[i].name];
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if (adjustedAttrEntry) {
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token.attrs[i].prefix = adjustedAttrEntry.prefix;
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token.attrs[i].name = adjustedAttrEntry.name;
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token.attrs[i].namespace = adjustedAttrEntry.namespace;
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}
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}
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};
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exports.adjustTokenSVGTagName = function (token) {
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var adjustedTagName = SVG_TAG_NAMES_ADJUSTMENT_MAP[token.tagName];
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if (adjustedTagName)
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token.tagName = adjustedTagName;
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};
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//Integration points
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function isMathMLTextIntegrationPoint(tn, ns) {
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return ns === NS.MATHML && (tn === $.MI || tn === $.MO || tn === $.MN || tn === $.MS || tn === $.MTEXT);
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}
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function isHtmlIntegrationPoint(tn, ns, attrs) {
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if (ns === NS.MATHML && tn === $.ANNOTATION_XML) {
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for (var i = 0; i < attrs.length; i++) {
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if (attrs[i].name === ATTRS.ENCODING) {
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var value = attrs[i].value.toLowerCase();
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return value === MIME_TYPES.TEXT_HTML || value === MIME_TYPES.APPLICATION_XML;
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}
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}
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}
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return ns === NS.SVG && (tn === $.FOREIGN_OBJECT || tn === $.DESC || tn === $.TITLE);
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}
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exports.isIntegrationPoint = function (tn, ns, attrs, foreignNS) {
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if ((!foreignNS || foreignNS === NS.HTML) && isHtmlIntegrationPoint(tn, ns, attrs))
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return true;
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if ((!foreignNS || foreignNS === NS.MATHML) && isMathMLTextIntegrationPoint(tn, ns))
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return true;
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return false;
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};
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