mathjax/es5/sre/sre_browser.js

Beautiful and accessible math in all browsers. MathJax is an open-source JavaScript display engine for LaTeX, MathML, and AsciiMath notation that works in all browsers. This package includes the packaged components (install mathjax-full to get the source

// Copyright 2014-2021 Volker Sorge
// Copyright (c) 2016-2021 The MathJax Consortium
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/*

 Copyright The Closure Library Authors.
 SPDX-License-Identifier: Apache-2.0
*/
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sre.DynamicCstr.prototype.getValues=function(){var a=[];this.order_.forEach(goog.bind(function(b){a.push(this.getValue(b))},this));return a};sre.DynamicCstr.prototype.allProperties=function(){for(var a=sre.DynamicCstr.superClass_.allProperties.call(this),b=0,c,d;c=a[b],d=this.order_[b];b++)d=this.getValue(d),-1===c.indexOf(d)&&c.unshift(d);return a};sre.DynamicCstr.prototype.toString=function(){return this.getValues().join(".")};
sre.DynamicCstr.prototype.equal=function(a){var b=a.getAxes();if(this.order_.length!==b.length)return!1;for(var c=0,d;d=b[c];c++){var e=this.getValue(d);if(!e||a.getValue(d)!==e)return!1}return!0};sre.DynamicCstr.Axis={DOMAIN:"domain",STYLE:"style",LOCALE:"locale",TOPIC:"topic",MODALITY:"modality"};sre.DynamicCstr.Values_=function(){this.axisToValues=sre.DynamicCstr.Values_.makeAxisValueObject_()};goog.addSingletonGetter(sre.DynamicCstr.Values_);
sre.DynamicCstr.Values_.prototype.add=function(a,b){this.axisToValues[a][b]=!0};sre.DynamicCstr.Values_.prototype.get=function(){var a={},b=sre.DynamicCstr.Values_.getInstance().axisToValues,c;for(c in b)a[c]=Object.keys(b[c]);return a};sre.DynamicCstr.Values_.makeAxisValueObject_=function(){var a={},b;for(b in sre.DynamicCstr.Axis)a[sre.DynamicCstr.Axis[b]]={};return a};sre.DynamicCstr.getAxisValues=function(){return sre.DynamicCstr.Values_.getInstance().get()};
sre.DynamicCstr.DEFAULT_ORDER=[sre.DynamicCstr.Axis.LOCALE,sre.DynamicCstr.Axis.MODALITY,sre.DynamicCstr.Axis.DOMAIN,sre.DynamicCstr.Axis.STYLE,sre.DynamicCstr.Axis.TOPIC];sre.DynamicCstr.DEFAULT_VALUE="default";sre.DynamicCstr.DEFAULT_VALUES={};sre.DynamicCstr.DEFAULT_VALUES[sre.DynamicCstr.Axis.LOCALE]="en";sre.DynamicCstr.DEFAULT_VALUES[sre.DynamicCstr.Axis.DOMAIN]=sre.DynamicCstr.DEFAULT_VALUE;sre.DynamicCstr.DEFAULT_VALUES[sre.DynamicCstr.Axis.STYLE]=sre.DynamicCstr.DEFAULT_VALUE;
sre.DynamicCstr.DEFAULT_VALUES[sre.DynamicCstr.Axis.TOPIC]=sre.DynamicCstr.DEFAULT_VALUE;sre.DynamicCstr.DEFAULT_VALUES[sre.DynamicCstr.Axis.MODALITY]="speech";sre.DynamicCstr.Parser=function(a){this.order_=a};sre.DynamicCstr.Parser.prototype.parse=function(a){a=a.split(".");var b={};if(a.length>this.order_.length)throw Error("Invalid dynamic constraint: "+b);for(var c=0,d;d=this.order_[c],a.length;c++){var e=a.shift();b[d]=e}return new sre.DynamicCstr(b,this.order_.slice(0,c))};
sre.DynamicCstr.Comparator=function(){};sre.DynamicCstr.Comparator.prototype.getReference=function(){};sre.DynamicCstr.Comparator.prototype.setReference=function(a,b){};sre.DynamicCstr.Comparator.prototype.match=function(a){};sre.DynamicCstr.Comparator.prototype.compare=function(a,b){};sre.DynamicCstr.DefaultComparator=function(a,b){this.reference_=a;this.fallback_=b||new sre.DynamicProperties(a.getProperties(),a.getOrder());this.order_=this.reference_.getOrder()};
sre.DynamicCstr.DefaultComparator.prototype.getReference=function(){return this.reference_};sre.DynamicCstr.DefaultComparator.prototype.setReference=function(a,b){this.reference_=a;this.fallback_=b||new sre.DynamicProperties(a.getProperties(),a.getOrder());this.order_=this.reference_.getOrder()};
sre.DynamicCstr.DefaultComparator.prototype.match=function(a){var b=a.getAxes();return b.length===this.reference_.getAxes().length&&b.every(goog.bind(function(c){var d=a.getValue(c);return d===this.reference_.getValue(c)||-1!==this.fallback_.getProperty(c).indexOf(d)},this))};
sre.DynamicCstr.DefaultComparator.prototype.compare=function(a,b){for(var c=!1,d=0,e;e=this.order_[d];d++){var f=a.getValue(e),g=b.getValue(e);if(!c){var h=this.reference_.getValue(e);if(h===f&&h!==g)return-1;if(h===g&&h!==f)return 1;if(h===f&&h===g)continue;h!==f&&h!==g&&(c=!0)}e=this.fallback_.getProperty(e);f=e.indexOf(f);g=e.indexOf(g);if(f<g)return-1;if(g<f)return 1}return 0};sre.DynamicCstr.DefaultComparator.prototype.toString=function(){return this.reference_.toString()+"\n"+this.fallback_.toString()};
sre.DynamicProperties.create=function(a){for(var b=sre.DynamicCstr.DEFAULT_ORDER,c={},d=Array.prototype.slice.call(arguments,0),e=0,f=d.length,g=b.length;e<f&&e<g;e++)c[b[e]]=d[e];return new sre.DynamicProperties(c)};sre.DynamicCstr.create=function(a){for(var b=sre.DynamicCstr.DEFAULT_ORDER,c={},d=Array.prototype.slice.call(arguments,0),e=0,f=d.length,g=b.length;e<f&&e<g;e++)c[b[e]]=d[e];return new sre.DynamicCstr(c)};
sre.DynamicCstr.defaultCstr=function(){return sre.DynamicCstr.create.apply(null,sre.DynamicCstr.DEFAULT_ORDER.map(function(a){return sre.DynamicCstr.DEFAULT_VALUES[a]}))};sre.DynamicCstr.validOrder=function(a){var b=sre.DynamicCstr.DEFAULT_ORDER.slice();return a.every(function(c){c=b.indexOf(c);return-1!==c&&b.splice(c,1)})};sre.Engine=function(){this.evaluator=sre.Engine.defaultEvaluator;this.parser=this.defaultParser=new sre.DynamicCstr.Parser(sre.DynamicCstr.DEFAULT_ORDER);this.parsers={};this.dynamicCstr=sre.DynamicCstr.defaultCstr();this.comparator=null;this.comparators={};this.domain="mathspeak";this.style=sre.DynamicCstr.DEFAULT_VALUES[sre.DynamicCstr.Axis.STYLE];this.locale=sre.DynamicCstr.DEFAULT_VALUES[sre.DynamicCstr.Axis.LOCALE];this.modality=sre.DynamicCstr.DEFAULT_VALUES[sre.DynamicCstr.Axis.MODALITY];this.walker=
"Table";this.mode=sre.Engine.Mode.SYNC;this.speech=sre.Engine.Speech.NONE;this.structure=!1;this.ruleSets=[];this.markup=sre.Engine.Markup.NONE;this.isEdge=this.isIE=this.strict=!1;this.rate="100";this.pprint=!1;this.setupTests_=[];this.config=!1;this.prune=this.rules=""};goog.addSingletonGetter(sre.Engine);sre.Engine.personalityProps={PITCH:"pitch",RATE:"rate",VOLUME:"volume",PAUSE:"pause",JOIN:"join"};sre.Engine.Mode={SYNC:"sync",ASYNC:"async",HTTP:"http"};
sre.Engine.Speech={NONE:"none",SHALLOW:"shallow",DEEP:"deep"};sre.Engine.Markup={NONE:"none",PUNCTUATION:"punctuation",SSML:"ssml",SSML_STEP:"ssml_step",ACSS:"acss",SABLE:"sable",VOICEXML:"voicexml"};sre.Engine.registerTest=function(a){sre.Engine.getInstance().setupTests_.push(a)};sre.Engine.isReady=function(){return sre.Engine.getInstance().setupTests_.every(function(a){return a()})};sre.Engine.prototype.setupBrowsers=function(){this.isIE=sre.BrowserUtil.detectIE();this.isEdge=sre.BrowserUtil.detectEdge()};
sre.Engine.prototype.getAxisValues=function(){return sre.DynamicCstr.getAxisValues()};sre.Engine.defaultEvaluator=function(a,b){return a};sre.Engine.prototype.getRate=function(){var a=parseInt(this.rate,10);return isNaN(a)?100:a};sre.Engine.Error=function(a){Error.call(this);this.message=a||"";this.name="SRE Error"};goog.inherits(sre.Engine.Error,Error);sre.Engine.BINARY_FEATURES=["strict","structure","pprint"];sre.Engine.STRING_FEATURES="markup style domain speech walker locale modality rate rules prune".split(" ");
sre.Engine.prototype.setDynamicCstr=function(a){if(a)for(var b=Object.keys(a),c=0;c<b.length;c++){var d=b[c];-1!==sre.DynamicCstr.DEFAULT_ORDER.indexOf(d)&&(this[d]=a[d])}sre.Engine.DOMAIN_TO_STYLES[this.domain]=this.style;a=[this.locale,this.modality,this.domain,this.style].join(".");b=sre.DynamicProperties.create([sre.DynamicCstr.DEFAULT_VALUES[sre.DynamicCstr.Axis.LOCALE]],[sre.DynamicCstr.DEFAULT_VALUES[sre.DynamicCstr.Axis.MODALITY]],[sre.DynamicCstr.DEFAULT_VALUES[sre.DynamicCstr.Axis.DOMAIN]],
[sre.DynamicCstr.DEFAULT_VALUES[sre.DynamicCstr.Axis.STYLE]]);c=this.comparators[this.domain];this.parser=(d=this.parsers[this.domain])?d:this.defaultParser;this.dynamicCstr=this.parser.parse(a);this.dynamicCstr.updateProperties(b.getProperties());this.comparator=c?c():new sre.DynamicCstr.DefaultComparator(this.dynamicCstr)};sre.Engine.DOMAIN_TO_STYLES={mathspeak:"default",clearspeak:"default"};sre.BaseUtil={};sre.BaseUtil.removeEmpty=function(a){return a.filter(function(b){return b})};sre.BaseUtil.interleaveLists=function(a,b){for(var c=[];a.length||b.length;)a.length&&c.push(a.shift()),b.length&&c.push(b.shift());return c};sre.BaseUtil.setdifference=function(a,b){return a?b?a.filter(function(c){return 0>b.indexOf(c)}):a:[]};sre.BaseUtil.union=function(a,b){return a&&b?a.concat(sre.BaseUtil.setdifferenc