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508f6035993ca191aa06a39023409c8a74ab437b
ALC27/mathjax/node-main.js
Yu Cong d77a09bdaa first commit
2025-12-22 12:20:15 +08:00

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Object.hasOwn(this.attributes,t)||Object.hasOwn(this.inherited,t)}hasDefault(t){return t in this.defaults}getExplicitNames(){return Object.keys(this.attributes)}getInheritedNames(){return Object.keys(this.inherited)}getDefaultNames(){return Object.keys(this.defaults)}getGlobalNames(){return Object.keys(this.global)}getAllAttributes(){return this.attributes}getAllInherited(){return this.inherited}getAllDefaults(){return this.defaults}getAllGlobals(){return this.global}}class Ft{constructor(t,e={},s=[]){this.factory=t,this.parent=null,this.properties={},this.childNodes=[];for(const t of Object.keys(e))this.setProperty(t,e[t]);s.length&&this.setChildren(s)}get kind(){return"unknown"}setProperty(t,e){this.properties[t]=e}getProperty(t){return this.properties[t]}getPropertyNames(){return Object.keys(this.properties)}getAllProperties(){return this.properties}removeProperty(...t){for(const e of t)delete this.properties[e]}isKind(t){return this.factory.nodeIsKind(this,t)}setChildren(t){this.childNodes=[];for(const e of t)this.appendChild(e)}appendChild(t){return this.childNodes.push(t),t.parent=this,t}replaceChild(t,e){const s=this.childIndex(e);return null!==s&&(this.childNodes[s]=t,t.parent=this,e.parent===this&&(e.parent=null)),t}removeChild(t){const e=this.childIndex(t);return null!==e&&(this.childNodes.splice(e,1),t.parent=null),t}childIndex(t){const e=this.childNodes.indexOf(t);return-1===e?null:e}copy(){const t=this.factory.create(this.kind);t.properties=Object.assign({},this.properties);for(const e of this.childNodes||[])e&&t.appendChild(e.copy());return t}findNodes(t){const e=[];return this.walkTree((s=>{s.isKind(t)&&e.push(s)})),e}walkTree(t,e){t(this,e);for(const s of this.childNodes)s&&s.walkTree(t,e);return e}toString(){return this.kind+"("+this.childNodes.join(",")+")"}}class Wt extends Ft{setChildren(t){}appendChild(t){return t}replaceChild(t,e){return e}childIndex(t){return null}walkTree(t,e){return t(this,e),e}toString(){return this.kind}}const Ht={ORD:0,OP:1,BIN:2,REL:3,OPEN:4,CLOSE:5,PUNCT:6,INNER:7,NONE:-1},Jt=["ORD","OP","BIN","REL","OPEN","CLOSE","PUNCT","INNER"],qt=["","thinmathspace","mediummathspace","thickmathspace"],zt=[[0,-1,2,3,0,0,0,1],[-1,-1,0,3,0,0,0,1],[2,2,0,0,2,0,0,2],[3,3,0,0,3,0,0,3],[0,0,0,0,0,0,0,0],[0,-1,2,3,0,0,0,1],[1,1,0,1,1,1,1,1],[1,-1,2,3,1,0,1,1]],Xt=new Set(["normal","bold","italic","bold-italic","double-struck","fraktur","bold-fraktur","script","bold-script","sans-serif","bold-sans-serif","sans-serif-italic","sans-serif-bold-italic","monospace","inital","tailed","looped","stretched"]),Ut=["indentalign","indentalignfirst","indentshift","indentshiftfirst"];class Gt extends Ft{constructor(t,e={},s=[]){super(t),this.prevClass=null,this.prevLevel=null,this.texclass=null,this.arity<0&&(this.childNodes=[t.create("inferredMrow")],this.childNodes[0].parent=this),this.setChildren(s),this.attributes=new $t(t.getNodeClass(this.kind).defaults,t.getNodeClass("math").defaults),this.attributes.setList(e)}copy(t=!1){const e=this.factory.create(this.kind);if(e.properties=Object.assign({},this.properties),this.attributes){const s=this.attributes.getAllAttributes();for(const i of Object.keys(s))("id"!==i||t)&&e.attributes.set(i,s[i])}if(this.childNodes&&this.childNodes.length){let t=this.childNodes;1===t.length&&t[0].isInferred&&(t=t[0].childNodes);for(const s of t)s?e.appendChild(s.copy()):e.childNodes.push(null)}return e}get texClass(){return this.texclass}set texClass(t){this.texclass=t}get isToken(){return!1}get isEmbellished(){return!1}get isSpacelike(){return!1}get linebreakContainer(){return!1}get linebreakAlign(){return"data-align"}get arity(){return 1/0}get isInferred(){return!1}get Parent(){let t=this.parent;for(;t&&t.notParent;)t=t.Parent;return t}get notParent(){return!1}setChildren(t){return this.arity<0?this.childNodes[0].setChildren(t):super.setChildren(t)}appendChild(t){if(this.arity<0)return this.childNodes[0].appendChild(t),t;if(t.isInferred){if(this.arity===1/0)return t.childNodes.forEach((t=>super.appendChild(t))),t;const e=t;(t=this.factory.create("mrow")).setChildren(e.childNodes),t.attributes=e.attributes;for(const s of e.getPropertyNames())t.setProperty(s,e.getProperty(s))}return super.appendChild(t)}replaceChild(t,e){return this.arity<0?(this.childNodes[0].replaceChild(t,e),t):super.replaceChild(t,e)}core(){return this}coreMO(){return this}coreIndex(){return 0}childPosition(){let t=null,e=this.parent;for(;e&&e.notParent;)t=e,e=e.parent;if(t=t||this,e){let s=0;for(const i of e.childNodes){if(i===t)return s;s++}}return null}setTeXclass(t){return this.getPrevClass(t),null!=this.texClass?this:t}updateTeXclass(t){t&&(this.prevClass=t.prevClass,this.prevLevel=t.prevLevel,t.prevClass=t.prevLevel=null,this.texClass=t.texClass)}getPrevClass(t){t&&(this.prevClass=t.texClass,this.prevLevel=t.attributes.get("scriptlevel"))}texSpacing(){const t=null!=this.prevClass?this.prevClass:Ht.NONE,e=this.texClass||Ht.ORD;if(t===Ht.NONE||e===Ht.NONE)return"";const s=zt[t][e];return(this.prevLevel>0||this.attributes.get("scriptlevel")>0)&&s>=0?"":qt[Math.abs(s)]}hasSpacingAttributes(){return this.isEmbellished&&this.coreMO().hasSpacingAttributes()}setInheritedAttributes(t={},e=!1,s=0,i=!1){var r,n,a;const o=this.attributes.getAllDefaults();for(const e of Object.keys(t)){if(Object.hasOwn(o,e)||Object.hasOwn(Gt.alwaysInherit,e)){const[s,i]=t[e];(null===(n=null===(r=Gt.noInherit[s])||void 0===r?void 0:r[this.kind])||void 0===n?void 0:n[e])||this.attributes.setInherited(e,i)}(null===(a=Gt.stopInherit[this.kind])||void 0===a?void 0:a[e])&&delete(t=Object.assign({},t))[e]}void 0===this.attributes.getExplicit("displaystyle")&&this.attributes.setInherited("displaystyle",e);void 0===this.attributes.getExplicit("scriptlevel")&&this.attributes.setInherited("scriptlevel",s),i&&this.setProperty("texprimestyle",i);const l=this.arity;if(l>=0&&l!==1/0&&(1===l&&0===this.childNodes.length||1!==l&&this.childNodes.length!==l))if(l<this.childNodes.length)this.childNodes=this.childNodes.slice(0,l);else for(;this.childNodes.length<l;)this.appendChild(this.factory.create("mrow"));if(this.linebreakContainer&&!this.isEmbellished){const e=this.linebreakAlign;if(e){const s=this.attributes.get(e)||"left";t=this.addInheritedAttributes(t,{indentalign:s,indentshift:"0",indentalignfirst:s,indentshiftfirst:"0",indentalignlast:"indentalign",indentshiftlast:"indentshift"})}}this.setChildInheritedAttributes(t,e,s,i)}setChildInheritedAttributes(t,e,s,i){for(const r of this.childNodes)r.setInheritedAttributes(t,e,s,i)}addInheritedAttributes(t,e){const s=Object.assign({},t);for(const t of Object.keys(e))"displaystyle"!==t&&"scriptlevel"!==t&&"style"!==t&&(s[t]=[this.kind,e[t]]);return s}inheritAttributesFrom(t){const e=t.attributes,s=e.get("displaystyle"),i=e.get("scriptlevel"),r=e.isSet("mathsize")?{mathsize:["math",e.get("mathsize")]}:{},n=t.getProperty("texprimestyle")||!1;this.setInheritedAttributes(r,s,i,n)}verifyTree(t=null){if(null===t)return;this.verifyAttributes(t);const e=this.arity;t.checkArity&&e>=0&&e!==1/0&&(1===e&&0===this.childNodes.length||1!==e&&this.childNodes.length!==e)&&this.mError('Wrong number of children for "'+this.kind+'" node',t,!0),this.verifyChildren(t)}verifyAttributes(t){if(t.checkAttributes){const e=this.attributes,s=[];for(const t of e.getExplicitNames())"data-"===t.substring(0,5)||void 0!==e.getDefault(t)||t.match(/^(?:class|style|id|(?:xlink:)?href)$/)||s.push(t);s.length&&this.mError("Unknown attributes for "+this.kind+" node: "+s.join(", "),t)}if(t.checkMathvariants){const e=this.attributes.getExplicit("mathvariant");!e||Xt.has(e)||this.getProperty("ignore-variant")||this.mError(`Invalid mathvariant: ${e}`,t,!0)}}verifyChildren(t){for(const e of this.childNodes)e.verifyTree(t)}mError(t,e,s=!1){if(this.parent&&this.parent.isKind("merror"))return null;const i=this.factory.create("merror");if(i.attributes.set("data-mjx-message",t),e.fullErrors||s){const s=this.factory.create("mtext"),r=this.factory.create("text");r.setText(e.fullErrors?t:this.kind),s.appendChild(r),i.appendChild(s),this.parent.replaceChild(i,this),e.fullErrors||i.attributes.set("title",t)}else this.parent.replaceChild(i,this),i.appendChild(this);return i}}Gt.defaults={mathbackground:jt,mathcolor:jt,mathsize:jt,dir:jt},Gt.noInherit={mstyle:{mpadded:{width:!0,height:!0,depth:!0,lspace:!0,voffset:!0},mtable:{width:!0,height:!0,depth:!0,align:!0}},maligngroup:{mrow:{groupalign:!0},mtable:{groupalign:!0}},mtr:{msqrt:{"data-vertical-align":!0},mroot:{"data-vertical-align":!0}},mlabeledtr:{msqrt:{"data-vertical-align":!0},mroot:{"data-vertical-align":!0}}},Gt.stopInherit={mtd:{columnalign:!0,rowalign:!0,groupalign:!0}},Gt.alwaysInherit={scriptminsize:!0,scriptsizemultiplier:!0,infixlinebreakstyle:!0},Gt.verifyDefaults={checkArity:!0,checkAttributes:!1,checkMathvariants:!0,fullErrors:!1,fixMmultiscripts:!0,fixMtables:!0};class Kt extends Gt{get isToken(){return!0}getText(){let t="";for(const e of this.childNodes)e instanceof Qt?t+=e.getText():"textContent"in e&&(t+=e.textContent());return t}setChildInheritedAttributes(t,e,s,i){for(const r of this.childNodes)r instanceof Gt&&r.setInheritedAttributes(t,e,s,i)}walkTree(t,e){t(this,e);for(const s of this.childNodes)s instanceof Gt&&s.walkTree(t,e);return e}}Kt.defaults=Object.assign(Object.assign({},Gt.defaults),{mathvariant:"normal",mathsize:jt});class Vt extends Gt{get isSpacelike(){return this.childNodes[0].isSpacelike}get isEmbellished(){return this.childNodes[0].isEmbellished}get arity(){return-1}core(){return this.childNodes[0]}coreMO(){return this.childNodes[0].coreMO()}setTeXclass(t){return t=this.childNodes[0].setTeXclass(t),this.updateTeXclass(this.childNodes[0]),t}}Vt.defaults=Gt.defaults;class Yt extends Gt{get isEmbellished(){return this.childNodes[0].isEmbellished}core(){return this.childNodes[0]}coreMO(){return this.childNodes[0].coreMO()}setTeXclass(t){this.getPrevClass(t),this.texClass=Ht.ORD;const e=this.childNodes[0];let s=null;e&&(this.isEmbellished||e.isKind("mi")?(s=e.setTeXclass(t),this.updateTeXclass(this.core())):e.setTeXclass(null));for(const t of this.childNodes.slice(1))t&&t.setTeXclass(null);return s||this}}Yt.defaults=Gt.defaults;class Zt extends Wt{get isToken(){return!1}get isEmbellished(){return!1}get isSpacelike(){return!1}get linebreakContainer(){return!1}get linebreakAlign(){return""}get arity(){return 0}get isInferred(){return!1}get notParent(){return!1}get Parent(){return this.parent}get texClass(){return Ht.NONE}get prevClass(){return Ht.NONE}get prevLevel(){return 0}hasSpacingAttributes(){return!1}get attributes(){return null}core(){return this}coreMO(){return this}coreIndex(){return 0}childPosition(){return 0}setTeXclass(t){return t}texSpacing(){return""}setInheritedAttributes(t,e,s,i){}inheritAttributesFrom(t){}verifyTree(t){}mError(t,e,s=!1){return null}}class Qt extends Zt{constructor(){super(...arguments),this.text=""}get kind(){return"text"}getText(){return this.text}setText(t){return this.text=t,this}copy(){return this.factory.create(this.kind).setText(this.getText())}toString(){return this.text}}class te extends Zt{constructor(){super(...arguments),this.xml=null,this.adaptor=null}get kind(){return"XML"}getXML(){return this.xml}setXML(t,e=null){return this.xml=t,this.adaptor=e,this}getSerializedXML(){return this.adaptor.serializeXML(this.xml)}copy(){return this.factory.create(this.kind).setXML(this.adaptor.clone(this.xml))}toString(){return"XML data"}}class ee extends Vt{get kind(){return"math"}get linebreakContainer(){return!0}get linebreakAlign(){return""}setChildInheritedAttributes(t,e,s,i){"display"===this.attributes.get("mode")&&this.attributes.setInherited("display","block"),t=this.addInheritedAttributes(t,this.attributes.getAllAttributes()),e=!!this.attributes.get("displaystyle")||!this.attributes.get("displaystyle")&&"block"===this.attributes.get("display"),this.attributes.setInherited("displaystyle",e),s=this.attributes.get("scriptlevel")||this.constructor.defaults.scriptlevel,super.setChildInheritedAttributes(t,e,s,i)}verifyTree(t=null){super.verifyTree(t),this.parent&&this.mError("Improper nesting of math tags",t,!0)}}ee.defaults=Object.assign(Object.assign({},Vt.defaults),{mathvariant:"normal",mathsize:"normal",mathcolor:"",mathbackground:"transparent",dir:"ltr",scriptlevel:0,displaystyle:!1,display:"inline",maxwidth:"",overflow:"linebreak",altimg:"","altimg-width":"","altimg-height":"","altimg-valign":"",alttext:"",cdgroup:"",scriptsizemultiplier:1/Math.sqrt(2),scriptminsize:".4em",infixlinebreakstyle:"before",lineleading:"100%",linebreakmultchar:"\u2062",indentshift:"auto",indentalign:"auto",indenttarget:"",indentalignfirst:"indentalign",indentshiftfirst:"indentshift",indentalignlast:"indentalign",indentshiftlast:"indentshift"});class se extends Kt{constructor(){super(...arguments),this.texclass=Ht.ORD}get kind(){return"mi"}setInheritedAttributes(t={},e=!1,s=0,i=!1){super.setInheritedAttributes(t,e,s,i);this.getText().match(se.singleCharacter)&&!t.mathvariant&&this.attributes.setInherited("mathvariant","italic")}setTeXclass(t){this.getPrevClass(t);const e=this.getText();return e.length>1&&e.match(se.operatorName)&&"normal"===this.attributes.get("mathvariant")&&void 0===this.getProperty("autoOP")&&void 0===this.getProperty("texClass")&&(this.texClass=Ht.OP,this.setProperty("autoOP",!0)),this}}se.defaults=Object.assign({},Kt.defaults),se.operatorName=/^[a-z][a-z0-9]*$/i,se.singleCharacter=/^[\uD800-\uDBFF]?.[\u0300-\u036F\u1AB0-\u1ABE\u1DC0-\u1DFF\u20D0-\u20EF]*$/;class ie extends Kt{constructor(){super(...arguments),this.texclass=Ht.ORD}get kind(){return"mn"}}function re(t,e,s=Ht.BIN,i=null){return[t,e,s,i]}ie.defaults=Object.assign({},Kt.defaults);const 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this}setInheritedAttributes(t={},e=!1,s=0,i=!1){super.setInheritedAttributes(t,e,s,i);const r=this.getText();this.checkOperatorTable(r),this.checkPseudoScripts(r),this.checkPrimes(r),this.checkMathAccent(r)}getOperatorDef(t){const[e,s,i]=this.handleExplicitForm(this.getForms());this.attributes.setInherited("form",e);const r=this.constructor,n=r.OPTABLE,a=n[e][t]||n[s][t]||n[i][t];if(a)return a;this.setProperty("noDictDef",!0);const o=this.attributes.get("movablelimits");if((!!t.match(r.opPattern)||o)&&void 0===this.getProperty("texClass"))return re(1,2,Ht.OP);const l=oe(t),[c,h]=r.MMLSPACING[l[2]];return re(c,h,l[2])}checkOperatorTable(t){const e=this.getOperatorDef(t);void 0===this.getProperty("texClass")&&(this.texClass=e[2]);for(const t of Object.keys(e[3]||{}))this.attributes.setInherited(t,e[3][t]);this.lspace=((e[0]||-1)+1)/18,this.rspace=((e[1]||-1)+1)/18}getForms(){let t=null,e=this.parent,s=this.Parent;for(;s&&s.isEmbellished;)t=e,e=s.parent,s=s.Parent;if(t=t||this,e&&e.isKind("mrow")&&1!==e.nonSpaceLength()){if(e.firstNonSpace()===t)return["prefix","infix","postfix"];if(e.lastNonSpace()===t)return["postfix","infix","prefix"]}return["infix","prefix","postfix"]}handleExplicitForm(t){if(this.attributes.isSet("form")){const e=this.attributes.get("form");t=[e].concat(t.filter((t=>t!==e)))}return t}checkPseudoScripts(t){const e=this.constructor.pseudoScripts;if(!t.match(e))return;const s=this.coreParent().Parent,i=!s||!(s.isKind("msubsup")&&!s.isKind("msub"));this.setProperty("pseudoscript",i),i&&(this.attributes.setInherited("lspace",0),this.attributes.setInherited("rspace",0))}checkPrimes(t){const e=this.constructor.primes;if(!t.match(e))return;const s=this.constructor.remapPrimes,i=pe(ue(t).map((t=>s[t])));this.setProperty("primes",i)}checkMathAccent(t){const e=this.Parent;if(void 0!==this.getProperty("mathaccent")||!e||!e.isKind("munderover"))return;const[s,i,r]=e.childNodes;if(s.isEmbellished&&s.coreMO()===this)return;const n=!(!i||!i.isEmbellished||i.coreMO()!==this),a=!(!r||!r.isEmbellished||i.coreMO()!==this);(n||a)&&(this.isMathAccent(t)?this.setProperty("mathaccent",!0):this.isMathAccentWithWidth(t)&&this.setProperty("mathaccent",!1))}isMathAccent(t=this.getText()){const e=this.constructor.mathaccents;return!!t.match(e)}isMathAccentWithWidth(t=this.getText()){const e=this.constructor.mathaccentsWithWidth;return!!t.match(e)}}Re.defaults=Object.assign(Object.assign({},Kt.defaults),{form:"infix",fence:!1,separator:!1,lspace:"thickmathspace",rspace:"thickmathspace",stretchy:!1,symmetric:!1,maxsize:"infinity",minsize:"0em",largeop:!1,movablelimits:!1,accent:!1,linebreak:"auto",lineleading:"100%",linebreakstyle:"before",indentalign:"auto",indentshift:"0",indenttarget:"",indentalignfirst:"indentalign",indentshiftfirst:"indentshift",indentalignlast:"indentalign",indentshiftlast:"indentshift"}),Re.MMLSPACING=le,Re.OPTABLE=ce,Re.pseudoScripts=new RegExp(["^[\"'*`","\xaa","\xb0","\xb2-\xb4","\xb9","\xba","\u2018-\u201f","\u2032-\u2037\u2057","\u2070\u2071","\u2074-\u207f","\u2080-\u208e","]+$"].join("")),Re.primes=new RegExp(["^[\"'","\u2018-\u201f","]+$"].join("")),Re.opPattern=/^[a-zA-Z]{2,}$/,Re.remapPrimes={34:8243,39:8242,8216:8245,8217:8242,8218:8242,8219:8245,8220:8246,8221:8243,8222:8243,8223:8246},Re.mathaccents=new RegExp(["^[","\xb4\u0301\u02ca","`\u0300\u02cb","\xa8\u0308","~\u0303\u02dc","\xaf\u0304\u02c9","\u02d8\u0306","\u02c7\u030c","^\u0302\u02c6","\u20d0\u20d1","\u20d6\u20d7\u20e1","\u02d9\u0307","\u02da\u030a","\u20db","\u20dc","]$"].join("")),Re.mathaccentsWithWidth=new RegExp(["^[","\u2190\u2192\u2194","\u23dc\u23dd","\u23de\u23df","]$"].join(""));class Le extends Kt{constructor(){super(...arguments),this.texclass=Ht.ORD}get kind(){return"mtext"}get isSpacelike(){return!!this.getText().match(/^\s*$/)&&!this.attributes.hasOneOf(Le.NONSPACELIKE)}}Le.NONSPACELIKE=["style","mathbackground","background"],Le.defaults=Object.assign({},Kt.defaults);class xe extends Kt{constructor(){super(...arguments),this.texclass=Ht.NONE}setTeXclass(t){return t}get kind(){return"mspace"}get arity(){return 0}get isSpacelike(){return!this.attributes.hasExplicit("linebreak")&&this.canBreak}get hasNewline(){const t=this.attributes.get("linebreak");return this.canBreak&&("newline"===t||"indentingnewline"===t)}get canBreak(){return!this.attributes.hasOneOf(xe.NONSPACELIKE)&&"-"!==String(this.attributes.get("width")).trim().charAt(0)}}xe.NONSPACELIKE=["height","depth","style","mathbackground","background"],xe.defaults=Object.assign(Object.assign({},Kt.defaults),{width:"0em",height:"0ex",depth:"0ex",linebreak:"auto",indentshift:"auto",indentalign:"auto",indenttarget:"",indentalignfirst:"indentalign",indentshiftfirst:"indentshift",indentalignlast:"indentalign",indentshiftlast:"indentshift"});class Ne extends Kt{constructor(){super(...arguments),this.texclass=Ht.ORD}get kind(){return"ms"}}Ne.defaults=Object.assign(Object.assign({},Kt.defaults),{lquote:'"',rquote:'"'});class be extends Gt{constructor(){super(...arguments),this._core=null}get kind(){return"mrow"}get isSpacelike(){for(const t of this.childNodes)if(!t.isSpacelike)return!1;return!0}get isEmbellished(){let t=!1,e=0;for(const s of this.childNodes){if(s)if(s.isEmbellished){if(t)return!1;t=!0,this._core=e}else if(!s.isSpacelike)return!1;e++}return t}core(){return this.isEmbellished&&null!=this._core?this.childNodes[this._core]:this}coreMO(){return this.isEmbellished&&null!=this._core?this.childNodes[this._core].coreMO():this}nonSpaceLength(){let t=0;for(const e of this.childNodes)e&&!e.isSpacelike&&t++;return t}firstNonSpace(){for(const t of this.childNodes)if(t&&!t.isSpacelike)return t;return null}lastNonSpace(){let t=this.childNodes.length;for(;--t>=0;){const e=this.childNodes[t];if(e&&!e.isSpacelike)return e}return null}setTeXclass(t){if(null!=this.getProperty("open")||null!=this.getProperty("close")){this.getPrevClass(t),t=null;for(const e of this.childNodes)t=e.setTeXclass(t);return null==this.texClass&&(this.texClass=Ht.INNER),this}for(const e of this.childNodes)t=e.setTeXclass(t);return this.childNodes[0]&&this.updateTeXclass(this.childNodes[0]),t}}be.defaults=Object.assign({},Gt.defaults);class ye extends be{get kind(){return"inferredMrow"}get isInferred(){return!0}get notParent(){return!0}toString(){return"["+this.childNodes.join(",")+"]"}}ye.defaults=be.defaults;class Ce extends Yt{get kind(){return"mfrac"}get arity(){return 2}get linebreakContainer(){return!0}get linebreakAlign(){return""}setTeXclass(t){this.getPrevClass(t);for(const t of this.childNodes)t.setTeXclass(null);return this}setChildInheritedAttributes(t,e,s,i){(!e||s>0)&&s++;const r=this.attributes.get("numalign"),n=this.attributes.get("denomalign"),a=this.addInheritedAttributes(Object.assign({},t),{numalign:r,indentshift:"0",indentalignfirst:r,indentshiftfirst:"0",indentalignlast:"indentalign",indentshiftlast:"indentshift"}),o=this.addInheritedAttributes(Object.assign({},t),{denalign:n,indentshift:"0",indentalignfirst:n,indentshiftfirst:"0",indentalignlast:"indentalign",indentshiftlast:"indentshift"});this.childNodes[0].setInheritedAttributes(a,!1,s,i),this.childNodes[1].setInheritedAttributes(o,!1,s,!0)}}Ce.defaults=Object.assign(Object.assign({},Yt.defaults),{linethickness:"medium",numalign:"center",denomalign:"center",bevelled:!1});class Ie extends Gt{constructor(){super(...arguments),this.texclass=Ht.ORD}get kind(){return"msqrt"}get arity(){return-1}get linebreakContainer(){return!0}setTeXclass(t){return this.getPrevClass(t),this.childNodes[0].setTeXclass(null),this}setChildInheritedAttributes(t,e,s,i){this.childNodes[0].setInheritedAttributes(t,e,s,!0)}}Ie.defaults=Object.assign(Object.assign({},Gt.defaults),{"data-vertical-align":"bottom"});class Oe extends Gt{constructor(){super(...arguments),this.texclass=Ht.ORD}get kind(){return"mroot"}get arity(){return 2}get linebreakContainer(){return!0}setTeXclass(t){return this.getPrevClass(t),this.childNodes[0].setTeXclass(null),this.childNodes[1].setTeXclass(null),this}setChildInheritedAttributes(t,e,s,i){this.childNodes[0].setInheritedAttributes(t,e,s,!0),this.childNodes[1].setInheritedAttributes(t,!1,s+2,i)}}Oe.defaults=Object.assign(Object.assign({},Gt.defaults),{"data-vertical-align":"bottom"});class Te extends Vt{get kind(){return"mstyle"}get notParent(){return this.childNodes[0]&&1===this.childNodes[0].childNodes.length}setInheritedAttributes(t={},e=!1,s=0,i=!1){this.attributes.setInherited("displaystyle",e),this.attributes.setInherited("scriptlevel",s),super.setInheritedAttributes(t,e,s,i)}setChildInheritedAttributes(t,e,s,i){let r=this.attributes.getExplicit("scriptlevel");null!=r&&(r=r.toString(),r.match(/^\s*[-+]/)?s+=parseInt(r):s=parseInt(r),i=!1);const n=this.attributes.getExplicit("displaystyle");null!=n&&(e=!0===n,i=!1);const a=this.attributes.getExplicit("data-cramped");null!=a&&(i=a),t=this.addInheritedAttributes(t,this.attributes.getAllAttributes()),this.childNodes[0].setInheritedAttributes(t,e,s,i)}}Te.defaults=Object.assign(Object.assign({},Vt.defaults),{scriptlevel:jt,displaystyle:jt,scriptsizemultiplier:1/Math.sqrt(2),scriptminsize:".4em",mathbackground:jt,mathcolor:jt,dir:jt,infixlinebreakstyle:"before"});class ve extends Gt{constructor(){super(...arguments),this.texclass=Ht.ORD}get kind(){return"merror"}get arity(){return-1}get linebreakContainer(){return!0}}ve.defaults=Object.assign({},Gt.defaults);class Ae extends Vt{get kind(){return"mpadded"}get linebreakContainer(){return!0}setTeXclass(t){return this.getProperty("vbox")?(this.getPrevClass(t),this.texClass=Ht.ORD,this.childNodes[0].setTeXclass(null),this):super.setTeXclass(t)}}Ae.defaults=Object.assign(Object.assign({},Vt.defaults),{width:"",height:"",depth:"",lspace:0,voffset:0});class Me extends Vt{constructor(){super(...arguments),this.texclass=Ht.ORD}get kind(){return"mphantom"}}Me.defaults=Object.assign({},Vt.defaults);class De extends Gt{constructor(){super(...arguments),this.texclass=Ht.INNER,this.separators=[],this.open=null,this.close=null}get kind(){return"mfenced"}setTeXclass(t){this.getPrevClass(t),this.open&&(t=this.open.setTeXclass(t)),this.childNodes[0]&&(t=this.childNodes[0].setTeXclass(t));for(let e=1,s=this.childNodes.length;e<s;e++)this.separators[e-1]&&(t=this.separators[e-1].setTeXclass(t)),this.childNodes[e]&&(t=this.childNodes[e].setTeXclass(t));return this.close&&(t=this.close.setTeXclass(t)),this.updateTeXclass(this.open),t}setChildInheritedAttributes(t,e,s,i){this.addFakeNodes();for(const r of[this.open,this.close].concat(this.separators))r&&r.setInheritedAttributes(t,e,s,i);super.setChildInheritedAttributes(t,e,s,i)}addFakeNodes(){let{open:t,close:e,separators:s}=this.attributes.getList("open","close","separators");if(t=t.replace(/[ \t\n\r]/g,""),e=e.replace(/[ \t\n\r]/g,""),s=s.replace(/[ \t\n\r]/g,""),t&&(this.open=this.fakeNode(t,{fence:!0,form:"prefix"},Ht.OPEN)),s){for(;s.length<this.childNodes.length-1;)s+=s.charAt(s.length-1);let t=0;for(const e of this.childNodes.slice(1))e&&this.separators.push(this.fakeNode(s.charAt(t++)))}e&&(this.close=this.fakeNode(e,{fence:!0,form:"postfix"},Ht.CLOSE))}fakeNode(t,e={},s=null){const i=this.factory.create("text").setText(t),r=this.factory.create("mo",e,[i]);return r.texClass=s,r.parent=this,r}}De.defaults=Object.assign(Object.assign({},Gt.defaults),{open:"(",close:")",separators:","});class ke extends Gt{constructor(){super(...arguments),this.texclass=Ht.ORD}get kind(){return"menclose"}get arity(){return-1}get linebreakContainer(){return!0}setTeXclass(t){return t=this.childNodes[0].setTeXclass(t),this.updateTeXclass(this.childNodes[0]),t}}ke.defaults=Object.assign(Object.assign({},Gt.defaults),{notation:"longdiv"});class we extends Gt{get kind(){return"maction"}get arity(){return 1}get selected(){const t=this.attributes.get("selection"),e=Math.max(1,Math.min(this.childNodes.length,t))-1;return this.childNodes[e]||this.factory.create("mrow")}get isEmbellished(){return this.selected.isEmbellished}get isSpacelike(){return this.selected.isSpacelike}core(){return this.selected.core()}coreMO(){return this.selected.coreMO()}verifyAttributes(t){super.verifyAttributes(t),"toggle"!==this.attributes.get("actiontype")&&this.attributes.hasExplicit("selection")&&this.attributes.unset("selection")}setTeXclass(t){"tooltip"===this.attributes.get("actiontype")&&this.childNodes[1]&&this.childNodes[1].setTeXclass(null);const e=this.selected;return t=e.setTeXclass(t),this.updateTeXclass(e),t}nextToggleSelection(){let t=Math.max(1,parseInt(this.attributes.get("selection"))+1);t>this.childNodes.length&&(t=1),this.attributes.set("selection",t)}setChildInheritedAttributes(t,e,s,i){var r,n;"tooltip"===this.attributes.get("actiontype").toLowerCase()?(null===(r=this.childNodes[0])||void 0===r||r.setInheritedAttributes(t,e,s,i),null===(n=this.childNodes[1])||void 0===n||n.setInheritedAttributes(t,!1,1,!1)):super.setChildInheritedAttributes(t,e,s,i)}}we.defaults=Object.assign(Object.assign({},Gt.defaults),{actiontype:"toggle",selection:1});class Se extends Yt{get kind(){return"msubsup"}get arity(){return 3}get base(){return 0}get sub(){return 1}get sup(){return 2}setChildInheritedAttributes(t,e,s,i){const r=this.childNodes;r[0].setInheritedAttributes(t,e,s,i),r[1].setInheritedAttributes(t,!1,s+1,i||1===this.sub),r[2]&&r[2].setInheritedAttributes(t,!1,s+1,i||2===this.sub)}}Se.defaults=Object.assign(Object.assign({},Yt.defaults),{subscriptshift:"",superscriptshift:""});class _e extends Se{get kind(){return"msub"}get arity(){return 2}}_e.defaults=Object.assign({},Se.defaults);class Pe extends Se{get kind(){return"msup"}get arity(){return 2}get sup(){return 1}get sub(){return 2}}Pe.defaults=Object.assign({},Se.defaults);class Be extends Yt{get kind(){return"munderover"}get arity(){return 3}get base(){return 0}get under(){return 1}get over(){return 2}get linebreakContainer(){return!0}setChildInheritedAttributes(t,e,s,i){const r=this.childNodes;r[0].setInheritedAttributes(t,e,s,i||!!r[this.over]);const n=!(e||!r[0].coreMO().attributes.get("movablelimits")),a=this.constructor.ACCENTS;r[1].setInheritedAttributes(t,!1,this.getScriptlevel(a[1],n,s),i||1===this.under),this.setInheritedAccent(1,a[1],e,s,i,n),r[2]&&(r[2].setInheritedAttributes(t,!1,this.getScriptlevel(a[2],n,s),i||2===this.under),this.setInheritedAccent(2,a[2],e,s,i,n))}getScriptlevel(t,e,s){return!e&&this.attributes.get(t)||s++,s}setInheritedAccent(t,e,s,i,r,n){const a=this.childNodes[t];if(!this.attributes.hasExplicit(e)&&a.isEmbellished){const t=a.coreMO().attributes.get("accent");this.attributes.setInherited(e,t),t!==this.attributes.getDefault(e)&&a.setInheritedAttributes({},s,this.getScriptlevel(e,n,i),r)}}}Be.defaults=Object.assign(Object.assign({},Yt.defaults),{accent:!1,accentunder:!1,align:"center"}),Be.ACCENTS=["","accentunder","accent"];class je extends Be{get kind(){return"munder"}get arity(){return 2}}je.defaults=Object.assign({},Be.defaults);class $e extends Be{get kind(){return"mover"}get arity(){return 2}get over(){return 1}get under(){return 2}}$e.defaults=Object.assign({},Be.defaults),$e.ACCENTS=["","accent","accentunder"];class Fe extends Se{get kind(){return"mmultiscripts"}get arity(){return 1}setChildInheritedAttributes(t,e,s,i){this.childNodes[0].setInheritedAttributes(t,e,s,i);let r=!1;for(let e=1,n=0;e<this.childNodes.length;e++){const a=this.childNodes[e];if(a.isKind("mprescripts")){if(!r&&(r=!0,e%2==0)){const t=this.factory.create("none");this.childNodes.splice(e,0,t),t.parent=this,e++}}else{const e=i||n%2==0;a.setInheritedAttributes(t,!1,s+1,e),n++}}this.childNodes.length%2==(r?1:0)&&(this.appendChild(this.factory.create("none")),this.childNodes[this.childNodes.length-1].setInheritedAttributes(t,!1,s+1,i))}verifyChildren(t){let e=!1;const s=t.fixMmultiscripts;for(let i=0;i<this.childNodes.length;i++){const r=this.childNodes[i];r.isKind("mprescripts")&&(e?r.mError(r.kind+" can only appear once in "+this.kind,t,!0):(e=!0,i%2!=0||s||this.mError("There must be an equal number of prescripts of each type",t)))}this.childNodes.length%2!=(e?1:0)||s||this.mError("There must be an equal number of scripts of each type",t),super.verifyChildren(t)}}Fe.defaults=Object.assign({},Se.defaults);class We extends Gt{get kind(){return"mprescripts"}get arity(){return 0}verifyTree(t){super.verifyTree(t),this.parent&&!this.parent.isKind("mmultiscripts")&&this.mError(this.kind+" must be a child of mmultiscripts",t,!0)}}We.defaults=Object.assign({},Gt.defaults);class He extends Gt{get kind(){return"none"}get arity(){return 0}verifyTree(t){super.verifyTree(t),this.parent&&!this.parent.isKind("mmultiscripts")&&this.mError(this.kind+" must be a child of mmultiscripts",t,!0)}}He.defaults=Object.assign({},Gt.defaults);class Je extends Gt{constructor(){super(...arguments),this.properties={useHeight:!0},this.texclass=Ht.ORD}get kind(){return"mtable"}get linebreakContainer(){return!0}get linebreakAlign(){return""}setInheritedAttributes(t,e,s,i){for(const e of Ut)t[e]&&this.attributes.setInherited(e,t[e][1]),this.attributes.hasExplicit(e)&&this.attributes.unset(e);super.setInheritedAttributes(t,e,s,i)}setChildInheritedAttributes(t,e,s,i){for(const t of this.childNodes)t.isKind("mtr")||this.replaceChild(this.factory.create("mtr"),t).appendChild(t);e=!(!this.attributes.getExplicit("displaystyle")&&!this.attributes.getDefault("displaystyle")),t=this.addInheritedAttributes(t,{columnalign:this.attributes.get("columnalign"),rowalign:"center","data-break-align":this.attributes.get("data-break-align")});const r=this.attributes.getExplicit("data-cramped"),n=Ee(this.attributes.get("rowalign"));for(const i of this.childNodes)t.rowalign[1]=n.shift()||t.rowalign[1],i.setInheritedAttributes(t,e,s,!!r)}verifyChildren(t){let e=null;const s=this.factory;for(let i=0;i<this.childNodes.length;i++){const r=this.childNodes[i];if(r.isKind("mtr"))e=null;else{const n=r.isKind("mtd");if(e?(this.removeChild(r),i--):e=this.replaceChild(s.create("mtr"),r),e.appendChild(n?r:s.create("mtd",{},[r])),!t.fixMtables){r.parent.removeChild(r),r.parent=this,n&&e.appendChild(s.create("mtd"));const i=r.mError("Children of "+this.kind+" must be mtr or mlabeledtr",t,n);e.childNodes[e.childNodes.length-1].appendChild(i)}}}super.verifyChildren(t)}setTeXclass(t){this.getPrevClass(t);for(const t of this.childNodes)t.setTeXclass(null);return this}}Je.defaults=Object.assign(Object.assign({},Gt.defaults),{align:"axis",rowalign:"baseline",columnalign:"center",groupalign:"{left}",alignmentscope:!0,columnwidth:"auto",width:"auto",rowspacing:"1ex",columnspacing:".8em",rowlines:"none",columnlines:"none",frame:"none",framespacing:"0.4em 0.5ex",equalrows:!1,equalcolumns:!1,displaystyle:!1,side:"right",minlabelspacing:"0.8em","data-break-align":"top"});class qe extends Gt{get kind(){return"mtr"}get linebreakContainer(){return!0}get linebreakAlign(){return""}setChildInheritedAttributes(t,e,s,i){for(const t of this.childNodes)t.isKind("mtd")||this.replaceChild(this.factory.create("mtd"),t).appendChild(t);const r=Ee(this.attributes.get("columnalign")),n=Ee(this.attributes.get("data-break-align"));1===this.arity&&(r.unshift(this.parent.attributes.get("side")),n.unshift("top")),t=this.addInheritedAttributes(t,{rowalign:this.attributes.get("rowalign"),columnalign:"center","data-break-align":"top"});for(const a of this.childNodes)t.columnalign[1]=r.shift()||t.columnalign[1],t["data-vertical-align"]=[this.kind,n.shift()||t["data-break-align"][1]],a.setInheritedAttributes(t,e,s,i)}verifyChildren(t){if(!this.parent||this.parent.isKind("mtable")){for(const e of this.childNodes)if(!e.isKind("mtd")){this.replaceChild(this.factory.create("mtd"),e).appendChild(e),t.fixMtables||e.mError("Children of "+this.kind+" must be mtd",t)}super.verifyChildren(t)}else this.mError(this.kind+" can only be a child of an mtable",t,!0)}setTeXclass(t){this.getPrevClass(t);for(const t of this.childNodes)t.setTeXclass(null);return this}}qe.defaults=Object.assign(Object.assign({},Gt.defaults),{rowalign:jt,columnalign:jt,groupalign:jt,"data-break-align":"top"});class ze extends qe{get kind(){return"mlabeledtr"}get arity(){return 1}}class Xe extends Yt{get kind(){return"mtd"}get arity(){return-1}get linebreakContainer(){return!0}get linebreakAlign(){return"columnalign"}verifyChildren(t){!this.parent||this.parent.isKind("mtr")?super.verifyChildren(t):this.mError(this.kind+" can only be a child of an mtr or mlabeledtr",t,!0)}setTeXclass(t){return this.getPrevClass(t),this.childNodes[0].setTeXclass(null),this}}Xe.defaults=Object.assign(Object.assign({},Yt.defaults),{rowspan:1,columnspan:1,rowalign:jt,columnalign:jt,groupalign:jt,"data-vertical-align":"top"});class Ue extends Vt{get kind(){return"maligngroup"}get isSpacelike(){return!0}setChildInheritedAttributes(t,e,s,i){t=this.addInheritedAttributes(t,this.attributes.getAllAttributes()),super.setChildInheritedAttributes(t,e,s,i)}}Ue.defaults=Object.assign(Object.assign({},Vt.defaults),{groupalign:jt});class Ge extends Gt{get kind(){return"malignmark"}get arity(){return 0}get isSpacelike(){return!0}}Ge.defaults=Object.assign(Object.assign({},Gt.defaults),{edge:"left"});class Ke extends Kt{constructor(){super(...arguments),this.texclass=Ht.ORD}get kind(){return"mglyph"}verifyAttributes(t){const{src:e,fontfamily:s,index:i}=this.attributes.getList("src","fontfamily","index");""!==e||""!==s&&""!==i?super.verifyAttributes(t):this.mError("mglyph must have either src or fontfamily and index attributes",t,!0)}}Ke.defaults=Object.assign(Object.assign({},Kt.defaults),{alt:"",src:"",index:"",width:"auto",height:"auto",valign:"0em"});class Ve extends Yt{get kind(){return"semantics"}get arity(){return 1}get notParent(){return!0}}Ve.defaults=Object.assign(Object.assign({},Yt.defaults),{definitionUrl:null,encoding:null});class Ye extends Gt{get kind(){return"annotation-xml"}setChildInheritedAttributes(){}}Ye.defaults=Object.assign(Object.assign({},Gt.defaults),{definitionUrl:null,encoding:null,cd:"mathmlkeys",name:"",src:null});class Ze extends Ye{constructor(){super(...arguments),this.properties={isChars:!0}}get kind(){return"annotation"}}Ze.defaults=Object.assign({},Ye.defaults);class Qe extends Yt{get kind(){return"TeXAtom"}get arity(){return-1}get notParent(){return!0}constructor(t,e,s){super(t,e,s),this.texclass=Ht.ORD,this.setProperty("texClass",this.texClass)}setTeXclass(t){return this.childNodes[0].setTeXclass(null),this.adjustTeXclass(t)}adjustTeXclass(t){return t}}Qe.defaults=Object.assign({},Yt.defaults),Qe.prototype.adjustTeXclass=Re.prototype.adjustTeXclass;class ts extends Yt{get kind(){return"MathChoice"}get arity(){return 4}get notParent(){return!0}setInheritedAttributes(t,e,s,i){const r=e?0:Math.max(0,Math.min(s,2))+1,n=this.childNodes[r]||this.factory.create("mrow");this.parent.replaceChild(n,this),n.setInheritedAttributes(t,e,s,i)}}ts.defaults=Object.assign({},Yt.defaults);class es extends te{get kind(){return"html"}getHTML(){return this.getXML()}setHTML(t,e=null){try{e.getAttribute(t,"data-mjx-hdw")}catch(s){t=e.node("span",{},[t])}return this.setXML(t,e)}getSerializedHTML(){return this.adaptor.outerHTML(this.xml)}textContent(){return this.adaptor.textContent(this.xml)}toString(){const t=this.adaptor.kind(this.xml);return`HTML=<${t}>...</${t}>`}verifyTree(t){!this.parent||this.parent.isToken||this.mError("HTML can only be a child of a token element",t,!0)}}const ss={[ee.prototype.kind]:ee,[se.prototype.kind]:se,[ie.prototype.kind]:ie,[Re.prototype.kind]:Re,[Le.prototype.kind]:Le,[xe.prototype.kind]:xe,[Ne.prototype.kind]:Ne,[be.prototype.kind]:be,[ye.prototype.kind]:ye,[Ce.prototype.kind]:Ce,[Ie.prototype.kind]:Ie,[Oe.prototype.kind]:Oe,[Te.prototype.kind]:Te,[ve.prototype.kind]:ve,[Ae.prototype.kind]:Ae,[Me.prototype.kind]:Me,[De.prototype.kind]:De,[ke.prototype.kind]:ke,[we.prototype.kind]:we,[_e.prototype.kind]:_e,[Pe.prototype.kind]:Pe,[Se.prototype.kind]:Se,[je.prototype.kind]:je,[$e.prototype.kind]:$e,[Be.prototype.kind]:Be,[Fe.prototype.kind]:Fe,[We.prototype.kind]:We,[He.prototype.kind]:He,[Je.prototype.kind]:Je,[ze.prototype.kind]:ze,[qe.prototype.kind]:qe,[Xe.prototype.kind]:Xe,[Ue.prototype.kind]:Ue,[Ge.prototype.kind]:Ge,[Ke.prototype.kind]:Ke,[Ve.prototype.kind]:Ve,[Ze.prototype.kind]:Ze,[Ye.prototype.kind]:Ye,[Qe.prototype.kind]:Qe,[ts.prototype.kind]:ts,[Qt.prototype.kind]:Qt,[te.prototype.kind]:te,[es.prototype.kind]:es};class is extends Bt{get MML(){return this.node}}is.defaultNodes=ss;class rs{constructor(){this.bits=0}static allocate(...t){for(const e of t){if(this.has(e))throw new Error("Bit already allocated for "+e);if(this.next===rs.MAXBIT)throw new Error("Maximum number of bits already allocated");this.names.set(e,this.next),this.next<<=1}}static has(t){return this.names.has(t)}set(t){this.bits|=this.getBit(t)}clear(t){this.bits&=~this.getBit(t)}isSet(t){return!!(this.bits&this.getBit(t))}reset(){this.bits=0}getBit(t){const e=this.constructor.names.get(t);if(!e)throw new Error("Unknown bit-field name: "+t);return e}}function ns(...t){const e=class extends rs{};return e.allocate(...t),e}rs.MAXBIT=1<<31,rs.next=1,rs.names=new Map;var as=s(983),os=s(462),ls=function(t,e,s,i){return new(s||(s=Promise))((function(r,n){function a(t){try{l(i.next(t))}catch(t){n(t)}}function o(t){try{l(i.throw(t))}catch(t){n(t)}}function l(t){var e;t.done?r(t.value):(e=t.value,e instanceof s?e:new s((function(t){t(e)}))).then(a,o)}l((i=i.apply(t,e||[])).next())}))};class cs extends as.PrioritizedList{static create(t){const e=new this;for(const s of Object.keys(t)){const[i,r]=this.action(s,t[s]);r&&e.add(i,r)}return e}static action(t,e){let s,i,r=!0;const n=e[0];if(1===e.length||"boolean"==typeof e[1])2===e.length&&(r=e[1]),[s,i]=this.methodActions(t);else if("string"==typeof e[1])if("string"==typeof e[2]){4===e.length&&(r=e[3]);const[t,n]=e.slice(1);[s,i]=this.methodActions(t,n)}else 3===e.length&&(r=e[2]),[s,i]=this.methodActions(e[1]);else 4===e.length&&(r=e[3]),[s,i]=e.slice(1);return[{id:t,renderDoc:s,renderMath:i,convert:r},n]}static methodActions(t,e=t){return[e=>(t&&e[t](),!1),(t,s)=>(e&&t[e](s),!1)]}renderDoc(t,e=St.UNPROCESSED){for(const s of this.items)if(s.priority>=e&&s.item.renderDoc(t))return}renderMath(t,e,s=St.UNPROCESSED){for(const i of this.items)if(i.priority>=s&&i.item.renderMath(t,e))return}renderConvert(t,e,s=St.LAST){for(const i of this.items){if(i.priority>s)return;if(i.item.convert&&i.item.renderMath(t,e))return}}findID(t){for(const e of this.items)if(e.item.id===t)return e.item;return null}}const hs={all:!1,processed:!1,inputJax:null,outputJax:null},ds={all:!0,processed:!0,inputJax:[],outputJax:[]};class us extends Ot{compile(t){return null}}class ps extends Tt{typeset(t,e=null){return null}escaped(t,e){return null}}class ms extends Dt{}class Es{constructor(t,e,s){const i=this.constructor;this.document=t,this.options=(0,yt.userOptions)((0,yt.defaultOptions)({},i.OPTIONS),s),this.math=new(this.options.MathList||ms),this.renderActions=cs.create(this.options.renderActions),this._actionPromises=[],this._readyPromise=Promise.resolve(),this.processed=new Es.ProcessBits,this.outputJax=this.options.OutputJax||new ps;let r=this.options.InputJax||[new us];Array.isArray(r)||(r=[r]),this.inputJax=r,this.adaptor=e,this.outputJax.setAdaptor(e),this.inputJax.map((t=>t.setAdaptor(e))),this.mmlFactory=this.options.MmlFactory||new is,this.inputJax.map((t=>t.setMmlFactory(this.mmlFactory))),this.outputJax.initialize(),this.inputJax.map((t=>t.initialize()))}get kind(){return this.constructor.KIND}addRenderAction(t,...e){const[s,i]=cs.action(t,e);this.renderActions.add(s,i)}removeRenderAction(t){const e=this.renderActions.findID(t);e&&this.renderActions.remove(e)}render(){return this.clearPromises(),this.renderActions.renderDoc(this),this}renderPromise(){return this.whenReady((()=>(0,os.handleRetriesFor)((()=>ls(this,void 0,void 0,(function*(){return this.render(),yield this.actionPromises(),this.clearPromises(),this}))))))}rerender(t=St.RERENDER){return this.state(t-1),this.render(),this}rerenderPromise(t=St.RERENDER){return this.whenReady((()=>(0,os.handleRetriesFor)((()=>ls(this,void 0,void 0,(function*(){return this.rerender(t),yield this.actionPromises(),this.clearPromises(),this}))))))}convert(t,e={}){let{format:s,display:i,end:r,ex:n,em:a,containerWidth:o,scale:l,family:c}=(0,yt.userOptions)({format:this.inputJax[0].name,display:!0,end:St.LAST,em:16,ex:8,containerWidth:null,scale:1,family:""},e);null===o&&(o=80*n);const h=this.inputJax.reduce(((t,e)=>e.name===s?e:t),null),d=new this.options.MathItem(t,h,i);return d.start.node=this.adaptor.body(this.document),d.setMetrics(a,n,o,l),c&&this.outputJax.options.mtextInheritFont&&(d.outputData.mtextFamily=c),c&&this.outputJax.options.merrorInheritFont&&(d.outputData.merrorFamily=c),this.clearPromises(),d.convert(this,r),d.typesetRoot||d.root}convertPromise(t,e={}){return this.whenReady((()=>(0,os.handleRetriesFor)((()=>ls(this,void 0,void 0,(function*(){const s=this.convert(t,e);return yield this.actionPromises(),this.clearPromises(),s}))))))}whenReady(t){return this._readyPromise=this._readyPromise.catch((t=>{})).then((()=>{const e=this._readyPromise;this._readyPromise=Promise.resolve();const s=t(),i=this._readyPromise.then((()=>s));return this._readyPromise=e,i}))}actionPromises(){return Promise.all(this._actionPromises)}clearPromises(){this._actionPromises=[]}savePromise(t){this._actionPromises.push(t)}findMath(t=null){return this.processed.set("findMath"),this}compile(){if(!this.processed.isSet("compile")){const t=[];for(const e of this.math)this.compileMath(e),void 0!==e.inputData.recompile&&t.push(e);for(const e of t){const t=e.inputData.recompile;e.state(t.state),e.inputData.recompile=t,this.compileMath(e)}this.processed.set("compile")}return this}compileMath(t){try{t.compile(this)}catch(e){if(e.retry||e.restart)throw e;this.options.compileError(this,t,e),t.inputData.error=e}}compileError(t,e){t.root=this.mmlFactory.create("math",null,[this.mmlFactory.create("merror",{"data-mjx-error":e.message,title:e.message},[this.mmlFactory.create("mtext",null,[this.mmlFactory.create("text").setText("Math input error")])])]),t.display&&t.root.attributes.set("display","block"),t.inputData.error=e.message}typeset(){if(!this.processed.isSet("typeset")){for(const t of this.math)try{t.typeset(this)}catch(e){if(e.retry||e.restart)throw e;this.options.typesetError(this,t,e),t.outputData.error=e}this.processed.set("typeset")}return this}typesetError(t,e){t.typesetRoot=this.adaptor.node("mjx-container",{class:"MathJax mjx-output-error",jax:this.outputJax.name},[this.adaptor.node("span",{"data-mjx-error":e.message,title:e.message,style:{color:"red","background-color":"yellow","line-height":"normal"}},[this.adaptor.text("Math output error")])]),t.display&&this.adaptor.setAttributes(t.typesetRoot,{style:{display:"block",margin:"1em 0","text-align":"center"}}),t.outputData.error=e.message}getMetrics(){return this.processed.isSet("getMetrics")||(this.outputJax.getMetrics(this),this.processed.set("getMetrics")),this}updateDocument(){if(!this.processed.isSet("updateDocument")){for(const t of this.math.reversed())t.updateDocument(this);this.processed.set("updateDocument")}return this}removeFromDocument(t=!1){return this}state(t,e=!1){for(const s of this.math)s.state(t,e);return t<St.INSERTED&&this.processed.clear("updateDocument"),t<St.TYPESET&&(this.processed.clear("typeset"),this.processed.clear("getMetrics")),t<St.COMPILED&&this.processed.clear("compile"),t<St.FINDMATH&&this.processed.clear("findMath"),this}reset(t={processed:!0}){return(t=(0,yt.userOptions)(Object.assign({},hs),t)).all&&Object.assign(t,ds),t.processed&&this.processed.reset(),t.inputJax&&this.inputJax.forEach((e=>e.reset(...t.inputJax))),t.outputJax&&this.outputJax.reset(...t.outputJax),this}clear(){return this.reset(),this.math.clear(),this}done(){return Promise.resolve()}concat(t){return this.math.merge(t),this}clearMathItemsWithin(t){const e=this.getMathItemsWithin(t);for(const t of e.slice(0).reverse())t.clear();return this.math.remove(...e),e}getMathItemsWithin(t){Array.isArray(t)||(t=[t]);const e=this.adaptor,s=[],i=e.getElements(t,this.document);t:for(const t of this.math)for(const r of i)if(t.start.node&&e.contains(r,t.start.node)){s.push(t);continue t}return s}}Es.KIND="MathDocument",Es.OPTIONS={OutputJax:null,InputJax:null,MmlFactory:null,MathList:ms,MathItem:class extends wt{},compileError:(t,e,s)=>{t.compileError(e,s)},typesetError:(t,e,s)=>{t.typesetError(e,s)},renderActions:(0,yt.expandable)({find:[St.FINDMATH,"findMath","",!1],compile:[St.COMPILED],metrics:[St.METRICS,"getMetrics","",!1],typeset:[St.TYPESET],update:[St.INSERTED,"updateDocument",!1]})},Es.ProcessBits=ns("findMath","compile","getMetrics","typeset","updateDocument");class fs extends Es{}class gs{constructor(t,e=5){this.documentClass=fs,this.adaptor=t,this.priority=e}get name(){return this.constructor.NAME}handlesDocument(t){return!1}create(t,e){return new this.documentClass(t,this.adaptor,e)}}gs.NAME="generic";var Rs=s(903);class Ls{static 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s=this.document.createElement(this.getKind(t));this.addAttributes(t,s);for(const e of t.childNodes)this.visitNode(e,s);e.appendChild(s)}addAttributes(t,e){const s=this.getAttributeList(t);for(const t of Object.keys(s))e.setAttribute(t,s[t].toString())}}class ys extends Ns{visitTree(t){return this.visitNode(t,"")}visitTextNode(t,e){return this.quoteHTML(t.getText())}visitXMLNode(t,e){return e+t.getSerializedXML()}visitHtmlNode(t,e){return t.getSerializedHTML()}visitInferredMrowNode(t,e){const s=[];for(const i of t.childNodes)s.push(this.visitNode(i,e));return s.join("\n")}visitAnnotationNode(t,e){const s=this.childNodeMml(t,"","");return`${e}<annotation${this.getAttributes(t)}>${s}</annotation>`}visitDefault(t,e){const s=this.getKind(t),[i,r]=t.isToken||0===t.childNodes.length?["",""]:["\n",e],n=this.childNodeMml(t,e+" ",i),a=n.match(/\S/)?i+n+r:"";return`${e}<${s}${this.getAttributes(t)}>${a}</${s}>`}childNodeMml(t,e,s){let i="";for(const r of 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