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s);)t=e,e=e.parent;return t||this}coreText(t){if(!t)return"";if(t.isEmbellished)return t.coreMO().getText();for(;((t.isKind("mrow")||t.isKind("TeXAtom")||t.isKind("mstyle")||t.isKind("mphantom"))&&1===t.childNodes.length||t.isKind("munderover"))&&t.childNodes[0];)t=t.childNodes[0];return t.isToken?t.getText():""}hasSpacingAttributes(){return this.attributes.isSet("lspace")||this.attributes.isSet("rspace")}get isAccent(){let t=!1;const e=this.coreParent().parent;if(e){const s=e.isKind("mover")?e.childNodes[e.over].coreMO()?"accent":"":e.isKind("munder")?e.childNodes[e.under].coreMO()?"accentunder":"":e.isKind("munderover")?this===e.childNodes[e.over].coreMO()?"accent":this===e.childNodes[e.under].coreMO()?"accentunder":"":"";if(s){t=void 0!==e.attributes.getExplicit(s)?t:this.attributes.get("accent")}}return t}setTeXclass(t){const{form:e,fence:s}=this.attributes.getList("form","fence");return void 0===this.getProperty("texClass")&&this.hasSpacingAttributes()?null:(s&&this.texClass===Jt.REL&&("prefix"===e&&(this.texClass=Jt.OPEN),"postfix"===e&&(this.texClass=Jt.CLOSE)),this.adjustTeXclass(t))}adjustTeXclass(t){const e=this.texClass;let s=this.prevClass;if(e===Jt.NONE)return t;if(t?(!t.getProperty("autoOP")||e!==Jt.BIN&&e!==Jt.REL||(s=t.texClass=Jt.ORD),s=this.prevClass=t.texClass||Jt.ORD,this.prevLevel=this.attributes.getInherited("scriptlevel")):s=this.prevClass=Jt.NONE,e!==Jt.BIN||s!==Jt.NONE&&s!==Jt.BIN&&s!==Jt.OP&&s!==Jt.REL&&s!==Jt.OPEN&&s!==Jt.PUNCT)if(s!==Jt.BIN||e!==Jt.REL&&e!==Jt.CLOSE&&e!==Jt.PUNCT){if(e===Jt.BIN){let t=null,e=this.parent;for(;e&&e.parent&&e.isEmbellished&&(1===e.childNodes.length||!e.isKind("mrow")&&e.core()===t);)t=e,e=e.parent;t=t||this,e.childNodes[e.childNodes.length-1]===t&&(this.texClass=Jt.ORD)}}else t.texClass=this.prevClass=Jt.ORD;else this.texClass=Jt.ORD;return 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,o=n[e][t]||n[s][t]||n[i][t];if(o)return o;this.setProperty("noDictDef",!0);const a=this.attributes.get("movablelimits");if((!!t.match(r.opPattern)||a)&&void 0===this.getProperty("texClass"))return oe(1,2,Jt.OP);const l=ce(t),[c,h]=r.MMLSPACING[l[2]];return oe(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]/18,this.rspace=e[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=Ee(me(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),o=!(!r||!r.isEmbellished||i.coreMO()!==this);(n||o)&&(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)}}Le.defaults=Object.assign(Object.assign({},Yt.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"}),Le.MMLSPACING=he,Le.OPTABLE=de,Le.pseudoScripts=new RegExp(["^[\"'*`","\xaa","\xb0","\xb2-\xb4","\xb9","\xba","\u2018-\u201f","\u2032-\u2037\u2057","\u2070\u2071","\u2074-\u207f","\u2080-\u208e","]+$"].join("")),Le.primes=new RegExp(["^[\"'","\u2018-\u201f","]+$"].join("")),Le.opPattern=/^[a-zA-Z]{2,}$/,Le.remapPrimes={34:8243,39:8242,8216:8245,8217:8242,8218:8242,8219:8245,8220:8246,8221:8243,8222:8243,8223:8246},Le.mathaccents=new RegExp(["^[","\xb4\u0301\u02ca","`\u0300\u02cb","\xa8\u0308","~\u0303\u02dc","\xaf\u0304\u02c9","\u02d8\u0306","\u02c7\u030c","^\u0302\u02c6","\u20d0\u20d1","\u20d6\u20d7\u20e1","\u02d9\u0307","\u02da\u030a","\u20db","\u20dc","]$"].join("")),Le.mathaccentsWithWidth=new RegExp(["^[","\u2190\u2192\u2194","\u23dc\u23dd","\u23de\u23df","]$"].join(""));class be extends Yt{constructor(){super(...arguments),this.texclass=Jt.ORD}get kind(){return"mtext"}get isSpacelike(){return!!this.getText().match(/^\s*$/)&&!this.attributes.hasOneOf(be.NONSPACELIKE)}}be.NONSPACELIKE=["style","mathbackground","background"],be.defaults=Object.assign({},Yt.defaults);class ye extends Yt{constructor(){super(...arguments),this.texclass=Jt.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(ye.NONSPACELIKE)&&"-"!==String(this.attributes.get("width")).trim().charAt(0)}}ye.NONSPACELIKE=["height","depth","style","mathbackground","background"],ye.defaults=Object.assign(Object.assign({},Yt.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 Yt{constructor(){super(...arguments),this.texclass=Jt.ORD}get kind(){return"ms"}}Ne.defaults=Object.assign(Object.assign({},Yt.defaults),{lquote:'"',rquote:'"'});class Ie extends Vt{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=Jt.INNER),this}for(const e of this.childNodes)t=e.setTeXclass(t);return this.childNodes[0]&&this.updateTeXclass(this.childNodes[0]),t}}Ie.defaults=Object.assign({},Vt.defaults);class Oe extends Ie{get kind(){return"inferredMrow"}get isInferred(){return!0}get notParent(){return!0}toString(){return"["+this.childNodes.join(",")+"]"}}Oe.defaults=Ie.defaults;class ve extends Qt{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"),o=this.addInheritedAttributes(Object.assign({},t),{numalign:r,indentshift:"0",indentalignfirst:r,indentshiftfirst:"0",indentalignlast:"indentalign",indentshiftlast:"indentshift"}),a=this.addInheritedAttributes(Object.assign({},t),{denalign:n,indentshift:"0",indentalignfirst:n,indentshiftfirst:"0",indentalignlast:"indentalign",indentshiftlast:"indentshift"});this.childNodes[0].setInheritedAttributes(o,!1,s,i),this.childNodes[1].setInheritedAttributes(a,!1,s,!0)}}ve.defaults=Object.assign(Object.assign({},Qt.defaults),{linethickness:"medium",numalign:"center",denomalign:"center",bevelled:!1});class Ce extends Vt{constructor(){super(...arguments),this.texclass=Jt.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)}}Ce.defaults=Object.assign(Object.assign({},Vt.defaults),{"data-vertical-align":"bottom"});class De extends Vt{constructor(){super(...arguments),this.texclass=Jt.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)}}De.defaults=Object.assign(Object.assign({},Vt.defaults),{"data-vertical-align":"bottom"});class Te extends Zt{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 o=this.attributes.getExplicit("data-cramped");null!=o&&(i=o),t=this.addInheritedAttributes(t,this.attributes.getAllAttributes()),this.childNodes[0].setInheritedAttributes(t,e,s,i)}}Te.defaults=Object.assign(Object.assign({},Zt.defaults),{scriptlevel:Ht,displaystyle:Ht,scriptsizemultiplier:1/Math.sqrt(2),scriptminsize:".4em",mathbackground:Ht,mathcolor:Ht,dir:Ht,infixlinebreakstyle:"before"});class we extends Vt{constructor(){super(...arguments),this.texclass=Jt.ORD}get kind(){return"merror"}get arity(){return-1}get linebreakContainer(){return!0}}we.defaults=Object.assign({},Vt.defaults);class Ae extends Zt{get kind(){return"mpadded"}get linebreakContainer(){return!0}setTeXclass(t){return this.getProperty("vbox")?(this.getPrevClass(t),this.texClass=Jt.ORD,this.childNodes[0].setTeXclass(null),this):super.setTeXclass(t)}}Ae.defaults=Object.assign(Object.assign({},Zt.defaults),{width:"",height:"",depth:"",lspace:0,voffset:0});class ke extends Zt{constructor(){super(...arguments),this.texclass=Jt.ORD}get kind(){return"mphantom"}}ke.defaults=Object.assign({},Zt.defaults);class Me extends Vt{constructor(){super(...arguments),this.texclass=Jt.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.open&&this.close||this.updateTeXclass(this.open||this.childNodes[0]||this.close),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"},Jt.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"},Jt.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}}Me.defaults=Object.assign(Object.assign({},Vt.defaults),{open:"(",close:")",separators:","});class Se extends Vt{constructor(){super(...arguments),this.texclass=Jt.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}}Se.defaults=Object.assign(Object.assign({},Vt.defaults),{notation:"longdiv"});class _e extends Vt{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)}}_e.defaults=Object.assign(Object.assign({},Vt.defaults),{actiontype:"toggle",selection:1});class je extends Qt{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)}}je.defaults=Object.assign(Object.assign({},Qt.defaults),{subscriptshift:"",superscriptshift:""});class Pe extends je{get kind(){return"msub"}get arity(){return 2}}Pe.defaults=Object.assign({},je.defaults);class Be extends je{get kind(){return"msup"}get arity(){return 2}get sup(){return 1}get sub(){return 2}}Be.defaults=Object.assign({},je.defaults);class We extends Qt{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")),o=this.constructor.ACCENTS;r[1].setInheritedAttributes(t,!1,this.getScriptlevel(o[1],n,s),i||1===this.under),this.setInheritedAccent(1,o[1],e,s,i,n),r[2]&&(r[2].setInheritedAttributes(t,!1,this.getScriptlevel(o[2],n,s),i||2===this.under),this.setInheritedAccent(2,o[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 o=this.childNodes[t];if(!this.attributes.hasExplicit(e)&&o.isEmbellished){const t=o.coreMO().attributes.get("accent");this.attributes.setInherited(e,t),t!==this.attributes.getDefault(e)&&o.setInheritedAttributes({},s,this.getScriptlevel(e,n,i),r)}}}We.defaults=Object.assign(Object.assign({},Qt.defaults),{accent:!1,accentunder:!1,align:"center"}),We.ACCENTS=["","accentunder","accent"];class He extends We{get kind(){return"munder"}get arity(){return 2}}He.defaults=Object.assign({},We.defaults);class Fe extends We{get kind(){return"mover"}get arity(){return 2}get over(){return 1}get under(){return 2}}Fe.defaults=Object.assign({},We.defaults),Fe.ACCENTS=["","accent","accentunder"];class $e extends je{get kind(){return"mmultiscripts"}get arity(){return 1}setChildInheritedAttributes(t,e,s,i){this.childNodes[0].setInheritedAttributes(t,e,s,i);let r=!1;for(let e=1,n=0;e<this.childNodes.length;e++){const o=this.childNodes[e];if(o.isKind("mprescripts")){if(!r&&(r=!0,e%2==0)){const t=this.factory.create("none");this.childNodes.splice(e,0,t),t.parent=this,e++}}else{const e=i||n%2==0;o.setInheritedAttributes(t,!1,s+1,e),n++}}this.childNodes.length%2==(r?1:0)&&(this.appendChild(this.factory.create("none")),this.childNodes[this.childNodes.length-1].setInheritedAttributes(t,!1,s+1,i))}verifyChildren(t){let e=!1;const s=t.fixMmultiscripts;for(let i=0;i<this.childNodes.length;i++){const r=this.childNodes[i];r.isKind("mprescripts")&&(e?r.mError(r.kind+" can only appear once in "+this.kind,t,!0):(e=!0,i%2!=0||s||this.mError("There must be an equal number of prescripts of each type",t)))}this.childNodes.length%2!=(e?1:0)||s||this.mError("There must be an equal number of scripts of each type",t),super.verifyChildren(t)}}$e.defaults=Object.assign({},je.defaults);class ze extends Vt{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)}}ze.defaults=Object.assign({},Vt.defaults);class Je extends Vt{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)}}Je.defaults=Object.assign({},Vt.defaults);class qe extends Vt{constructor(){super(...arguments),this.properties={useHeight:!0},this.texclass=Jt.ORD}get kind(){return"mtable"}get linebreakContainer(){return!0}get linebreakAlign(){return""}setInheritedAttributes(t,e,s,i){for(const e of Gt)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=fe(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}}qe.defaults=Object.assign(Object.assign({},Vt.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 Ke extends Vt{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=fe(this.attributes.get("columnalign")),n=fe(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 o of this.childNodes)t.columnalign[1]=r.shift()||t.columnalign[1],t["data-vertical-align"]=[this.kind,n.shift()||t["data-break-align"][1]],o.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}}Ke.defaults=Object.assign(Object.assign({},Vt.defaults),{rowalign:Ht,columnalign:Ht,groupalign:Ht,"data-break-align":"top"});class Xe extends Ke{get kind(){return"mlabeledtr"}get arity(){return 1}}class Ue extends Qt{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}}Ue.defaults=Object.assign(Object.assign({},Qt.defaults),{rowspan:1,columnspan:1,rowalign:Ht,columnalign:Ht,groupalign:Ht,"data-vertical-align":"top"});class Ge extends Zt{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)}}Ge.defaults=Object.assign(Object.assign({},Zt.defaults),{groupalign:Ht});class Ve extends Vt{get kind(){return"malignmark"}get arity(){return 0}get isSpacelike(){return!0}}Ve.defaults=Object.assign(Object.assign({},Vt.defaults),{edge:"left"});class Ye extends Yt{constructor(){super(...arguments),this.texclass=Jt.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)}}Ye.defaults=Object.assign(Object.assign({},Yt.defaults),{alt:"",src:"",index:"",width:"auto",height:"auto",valign:"0em"});class Ze extends Qt{get kind(){return"semantics"}get arity(){return 1}get notParent(){return!0}}Ze.defaults=Object.assign(Object.assign({},Qt.defaults),{definitionUrl:null,encoding:null});class Qe extends Vt{get kind(){return"annotation-xml"}setChildInheritedAttributes(){}}Qe.defaults=Object.assign(Object.assign({},Vt.defaults),{definitionUrl:null,encoding:null,cd:"mathmlkeys",name:"",src:null});class ts extends Qe{constructor(){super(...arguments),this.properties={isChars:!0}}get kind(){return"annotation"}}ts.defaults=Object.assign({},Qe.defaults);class es extends Qt{get kind(){return"TeXAtom"}get arity(){return-1}get notParent(){return!0}constructor(t,e,s){super(t,e,s),this.texclass=Jt.ORD,this.setProperty("texClass",this.texClass)}setTeXclass(t){return this.childNodes[0].setTeXclass(null),this.adjustTeXclass(t)}adjustTeXclass(t){return t}}es.defaults=Object.assign({},Qt.defaults),es.prototype.adjustTeXclass=Le.prototype.adjustTeXclass;class ss extends Qt{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)}}ss.defaults=Object.assign({},Qt.defaults);class is extends se{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 rs={[ie.prototype.kind]:ie,[re.prototype.kind]:re,[ne.prototype.kind]:ne,[Le.prototype.kind]:Le,[be.prototype.kind]:be,[ye.prototype.kind]:ye,[Ne.prototype.kind]:Ne,[Ie.prototype.kind]:Ie,[Oe.prototype.kind]:Oe,[ve.prototype.kind]:ve,[Ce.prototype.kind]:Ce,[De.prototype.kind]:De,[Te.prototype.kind]:Te,[we.prototype.kind]:we,[Ae.prototype.kind]:Ae,[ke.prototype.kind]:ke,[Me.prototype.kind]:Me,[Se.prototype.kind]:Se,[_e.prototype.kind]:_e,[Pe.prototype.kind]:Pe,[Be.prototype.kind]:Be,[je.prototype.kind]:je,[He.prototype.kind]:He,[Fe.prototype.kind]:Fe,[We.prototype.kind]:We,[$e.prototype.kind]:$e,[ze.prototype.kind]:ze,[Je.prototype.kind]:Je,[qe.prototype.kind]:qe,[Xe.prototype.kind]:Xe,[Ke.prototype.kind]:Ke,[Ue.prototype.kind]:Ue,[Ge.prototype.kind]:Ge,[Ve.prototype.kind]:Ve,[Ye.prototype.kind]:Ye,[Ze.prototype.kind]:Ze,[ts.prototype.kind]:ts,[Qe.prototype.kind]:Qe,[es.prototype.kind]:es,[ss.prototype.kind]:ss,[ee.prototype.kind]:ee,[se.prototype.kind]:se,[is.prototype.kind]:is};class ns extends Wt{get MML(){return this.node}}ns.defaultNodes=rs;class os{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===os.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 as(...t){const e=class extends os{};return e.allocate(...t),e}os.MAXBIT=1<<31,os.next=1,os.names=new Map;var ls=s(983),cs=s(462),hs=function(t,e,s,i){return new(s||(s=Promise))(function(r,n){function o(t){try{l(i.next(t))}catch(t){n(t)}}function a(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(o,a)}l((i=i.apply(t,e||[])).next())})};class ds extends ls.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=jt.UNPROCESSED){for(const s of this.items)if(s.priority>=e&&s.item.renderDoc(t))return}renderMath(t,e,s=jt.UNPROCESSED){for(const i of this.items)if(i.priority>=s&&i.item.renderMath(t,e))return}renderConvert(t,e,s=jt.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 us={all:!1,processed:!1,inputJax:null,outputJax:null},ps={all:!0,processed:!0,inputJax:[],outputJax:[]};class ms extends Dt{compile(t){return null}}class Es extends Tt{typeset(t,e=null){return null}escaped(t,e){return null}}class gs extends Mt{}class fs{constructor(t,e,s){const i=this.constructor;this.document=t,this.options=(0,Ot.userOptions)((0,Ot.defaultOptions)({},i.OPTIONS),s),this.math=new(this.options.MathList||gs),this.renderActions=ds.create(this.options.renderActions),this._actionPromises=[],this._readyPromise=Promise.resolve(),this.processed=new fs.ProcessBits,this.outputJax=this.options.OutputJax||new Es;let r=this.options.InputJax||[new ms];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 ns,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]=ds.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,cs.handleRetriesFor)(()=>hs(this,void 0,void 0,function*(){return this.render(),yield this.actionPromises(),this.clearPromises(),this})))}rerender(t=jt.RERENDER){return this.state(t-1),this.render(),this}rerenderPromise(t=jt.RERENDER){return this.whenReady(()=>(0,cs.handleRetriesFor)(()=>hs(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:o,containerWidth:a,scale:l,family:c}=(0,Ot.userOptions)({format:this.inputJax[0].name,display:!0,end:jt.LAST,em:16,ex:8,containerWidth:null,scale:1,family:""},e);null===a&&(a=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(o,n,a,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,cs.handleRetriesFor)(()=>hs(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<jt.INSERTED&&this.processed.clear("updateDocument"),t<jt.TYPESET&&(this.processed.clear("typeset"),this.processed.clear("getMetrics")),t<jt.COMPILED&&this.processed.clear("compile"),t<jt.FINDMATH&&this.processed.clear("findMath"),this}reset(t={processed:!0}){return(t=(0,Ot.userOptions)(Object.assign({},us),t)).all&&Object.assign(t,ps),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}}fs.KIND="MathDocument",fs.OPTIONS={OutputJax:null,InputJax:null,MmlFactory:null,MathList:gs,MathItem:class extends _t{},compileError:(t,e,s)=>{t.compileError(e,s)},typesetError:(t,e,s)=>{t.typesetError(e,s)},renderActions:(0,Ot.expandable)({find:[jt.FINDMATH,"findMath","",!1],compile:[jt.COMPILED],metrics:[jt.METRICS,"getMetrics","",!1],typeset:[jt.TYPESET],update:[jt.INSERTED,"updateDocument",!1]})},fs.ProcessBits=as("findMath","compile","getMetrics","typeset","updateDocument");class Rs extends fs{}class xs{constructor(t,e=5){this.documentClass=Rs,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)}}xs.NAME="generic";var Ls=s(903);class bs{static methodName(t){return"visit"+(t.charAt(0).toUpperCase()+t.substring(1)).replace(/[^a-z0-9_]/gi,"_")+"Node"}constructor(t){this.nodeHandlers=new Map;for(const e of t.getKinds()){const t=this[bs.methodName(e)];t&&this.nodeHandlers.set(e,t)}}visitTree(t,...e){return this.visitNode(t,...e)}visitNode(t,...e){return(this.nodeHandlers.get(t.kind)||this.visitDefault).call(this,t,...e)}visitDefault(t,...e){if("childNodes"in t)for(const s of t.childNodes)this.visitNode(s,...e)}setNodeHandler(t,e){this.nodeHandlers.set(t,e)}removeNodeHandler(t){this.nodeHandlers.delete(t)}}const ys="data-mjx-";class Ns extends bs{constructor(t=null){t||(t=new ns),super(t)}visitTextNode(t,...e){}visitXMLNode(t,...e){}visitHtmlNode(t,...e){}getKind(t){const e=t.kind;return(0,Ot.lookup)(e,this.constructor.rename,e)}getAttributeList(t){const e=this.constructor,s=(0,Ot.lookup)(t.kind,e.defaultAttributes,{}),i=Object.assign({},s,this.getDataAttributes(t),t.attributes.getAllAttributes()),r=e.variants;return Object.hasOwn(i,"mathvariant")&&(Object.hasOwn(r,i.mathvariant)?i.mathvariant=r[i.mathvariant]:t.getProperty("ignore-variant")&&delete i.mathvariant),i}getDataAttributes(t){const e={},s=t.attributes.getExplicit("mathvariant"),i=this.constructor.variants;s&&(t.getProperty("ignore-variant")||Object.hasOwn(i,s))&&this.setDataAttribute(e,"variant",s),t.getProperty("variantForm")&&this.setDataAttribute(e,"alternate","1"),t.getProperty("pseudoscript")&&this.setDataAttribute(e,"pseudoscript","true"),!1===t.getProperty("autoOP")&&this.setDataAttribute(e,"auto-op","false");const r=t.getProperty("vbox");r&&this.setDataAttribute(e,"vbox",r);const n=t.getProperty("scriptalign");n&&this.setDataAttribute(e,"script-align",n);const o=t.getProperty("mathaccent");void 0!==o&&(o&&!t.isMathAccent()||!o&&!t.isMathAccentWithWidth())&&this.setDataAttribute(e,"mathaccent",o.toString());const a=t.getProperty("texClass");if(void 0!==a){let s=!0;if(a===Jt.OP&&t.isKind("mi")){const e=t.getText();s=!(e.length>1&&e.match(re.operatorName))}s&&this.setDataAttribute(e,"texclass",a<0?"NONE":qt[a])}return t.getProperty("smallmatrix")&&this.setDataAttribute(e,"smallmatrix","true"),e}setDataAttribute(t,e,s){t[ys+e]=s}}Ns.rename={TeXAtom:"mrow"},Ns.variants={"-tex-calligraphic":"script","-tex-bold-calligraphic":"bold-script","-tex-oldstyle":"normal","-tex-bold-oldstyle":"bold","-tex-mathit":"italic"},Ns.defaultAttributes={math:{xmlns:"http://www.w3.org/1998/Math/MathML"}};class Is extends Ns{constructor(){super(...arguments),this.document=null}visitTree(t,e){this.document=e;const s=e.createElement("top");return this.visitNode(t,s),this.document=null,s.firstChild}visitTextNode(t,e){e.appendChild(this.document.createTextNode(t.getText()))}visitXMLNode(t,e){e.appendChild(t.getXML().cloneNode(!0))}visitHtmlNode(t,e){e.appendChild(t.getHTML().cloneNode(!0))}visitInferredMrowNode(t,e){for(const s of t.childNodes)this.visitNode(s,e)}visitDefault(t,e){const 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 Os 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)}>${s}</annotation>`}visitDefault(t,e){const s=this.getKind(t),[i,r]=t.isToken||0===t.childNodes.length?["",""]:["\n",e],n=this.childNodeMml(t,e+"  ",i),o=n.match(/\S/)?i+n+r:"";return`${e}<${s}${this.getAttributes(t)}>${o}</${s}>`}childNodeMml(t,e,s){let i="";for(const r of t.childNodes)i+=this.visitNode(r,e)+s;return i}getAttributes(t){const e=[],s=this.getAttributeList(t);for(const t of Object.keys(s)){const i=String(s[t]);void 0!==i&&e.push(t+'="'+this.quoteHTML(i)+'"')}return e.length?" "+e.join(" "):""}quoteHTML(t){return t.replace(/&/g,"&amp;").replace(/</g,"&lt;").replace(/>/g,"&gt;").replace(/"/g,"&quot;").replace(/[\uD800-\uDBFF]./g,this.toEntity).replace(/[\u0080-\uD7FF\uE000-\uFFFF]/g,this.toEntity)}toEntity(t){return xe(t)}}class vs{get kind(){return this.node.kind}constructor(t,e){this.factory=t,this.node=e}wrap(t){return this.factory.wrap(t)}walkTree(t,e){if(t(this,e),"childNodes"in this)for(const s of this.childNodes)s&&s.walkTree(t,e);return e}}class Cs extends Bt{wrap(t,...e){return this.create(t.kind,t,...e)}}var Ds=s(850);class Ts extends _t{get adaptor(){return this.inputJax.adaptor}constructor(t,e,s=!0,i={node:null,n:0,delim:""},r={node:null,n:0,delim:""}){super(t,e,s,i,r)}updateDocument(t){if(this.state()<jt.INSERTED){if(this.inputJax.processStrings){let t=this.start.node;if(t===this.end.node)this.end.n&&this.end.n<this.adaptor.value(this.end.node).length&&this.adaptor.split(this.end.node,this.end.n),this.start.n&&(t=this.adaptor.split(this.start.node,this.start.n)),this.adaptor.parent(t)&&this.adaptor.replace(this.typesetRoot,t);else{for(this.start.n&&(t=this.adaptor.split(t,this.start.n));t!==this.end.node;){const e=this.adaptor.next(t);this.adaptor.remove(t),t=e}this.adaptor.insert(this.typesetRoot,t),this.end.n<this.adaptor.value(t).length&&this.adaptor.split(t,this.end.n),this.adaptor.remove(t)}}else this.adaptor.replace(this.typesetRoot,this.start.node);this.start.node=this.end.node=this.typesetRoot,this.start.n=this.end.n=0,this.state(jt.INSERTED)}}updateStyleSheet(t){t.addStyleSheet()}removeFromDocument(t=!1){if(super.removeFromDocument(t),this.state()>=jt.TYPESET){const e=this.adaptor,s=this.start.node;let i=e.text("");if(t){const t=this.start.delim+this.math+this.end.delim;if(this.inputJax.processStrings)i=e.text(t);else{const s=e.parse(t,"text/html");i=e.firstChild(e.body(s))}}e.parent(s)&&e.replace(i,s),this.start.node=this.end.node=i,this.start.n=this.end.n=0}}}class ws extends Mt{}class As{constructor(t=null){const e=this.constructor;this.options=(0,Ot.userOptions)((0,Ot.defaultOptions)({},e.OPTIONS),t),this.init(),this.getPatterns()}init(){this.strings=[],this.string="",this.snodes=[],this.nodes=[],this.stack=[]}getPatterns(){const t=(0,Ot.makeArray)(this.options.skipHtmlTags),e=(0,Ot.makeArray)(this.options.ignoreHtmlClass),s=(0,Ot.makeArray)(this.options.processHtmlClass);this.skipHtmlTags=new RegExp("^(?:"+t.join("|")+")$","i"),this.ignoreHtmlClass=new RegExp("(?:^| )(?:"+e.join("|")+")(?: |$)"),this.processHtmlClass=new RegExp("(?:^| )(?:"+s+")(?: |$)")}pushString(){this.string.match(/\S/)&&(this.strings.push(this.string),this.nodes.push(this.snodes)),this.string="",this.snodes=[]}extendString(t,e){this.snodes.push([t,e.length]),this.string+=e}handleText(t,e){return e||this.extendString(t,this.adaptor.value(t)),this.adaptor.next(t)}handleTag(t,e){if(!e){const e=this.options.includeHtmlTags[this.adaptor.kind(t)];e instanceof Function?this.extendString(t,e(t,this.adaptor)):this.extendString(t,e)}return this.adaptor.next(t)}handleContainer(t,e){this.pushString();const s=this.adaptor.getAttribute(t,"class")||"",i=this.adaptor.kind(t)||"",r=this.processHtmlClass.exec(s);let n=t;return!this.adaptor.firstChild(t)||this.adaptor.getAttribute(t,"data-MJX")||!r&&this.skipHtmlTags.exec(i)?n=this.adaptor.next(t):(this.adaptor.next(t)&&this.stack.push([this.adaptor.next(t),e]),n=this.adaptor.firstChild(t),e=(e||this.ignoreHtmlClass.exec(s))&&!r),[n,e]}handleOther(t,e){return this.pushString(),this.adaptor.next(t)}find(t){this.init();const e=this.adaptor.next(t);let s=!1;const i=this.options.includeHtmlTags;for(;t&&t!==e;){const e=this.adaptor.kind(t);"#text"===e?t=this.handleText(t,s):Object.hasOwn(i,e)?t=this.handleTag(t,s):e?[t,s]=this.handleContainer(t,s):t=this.handleOther(t,s),!t&&this.stack.length&&(this.pushString(),[t,s]=this.stack.pop())}this.pushString();const r=[this.strings,this.nodes];return this.init(),r}}As.OPTIONS={skipHtmlTags:["script","noscript","style","textarea","pre","code","math","select","option","mjx-container"],includeHtmlTags:(0,Ot.expandable)({br:"\n",wbr:"","#comment":""}),ignoreHtmlClass:"mathjax_ignore",processHtmlClass:"mathjax_process"},Pt("STYLES",jt.INSERTED+1);class ks extends fs{constructor(t,e,s){const[i,r]=(0,Ot.separateOptions)(s,As.OPTIONS);super(t,e,i),this.domStrings=this.options.DomStrings||new As(r),this.domStrings.adaptor=e,this.styles=[]}findPosition(t,e,s,i){const r=this.adaptor,n=1/(i[t].length||1);let o=t;for(const[a,l]of i[t]){if(e<=l&&"#text"===r.kind(a))return{i:o,node:a,n:Math.max(e,0),delim:s};e-=l,o+=n}return{node:null,n:0,delim:s}}mathItem(t,e,s){const i=t.math,r=this.findPosition(t.n,t.start.n,t.open,s),n=this.findPosition(t.n,t.end.n,t.close,s);return new this.options.MathItem(i,e,t.display,r,n)}findMath(t){if(!this.processed.isSet("findMath")){this.adaptor.document=this.document,t=(0,Ot.userOptions)({elements:this.options.elements||[this.adaptor.body(this.document)]},t);const e=this.adaptor.getElements(t.elements,this.document);for(const t of this.inputJax){const s=t.processStrings?this.findMathFromStrings(t,e):this.findMathFromDOM(t,e);this.math.merge(s)}this.processed.set("findMath")}return this}findMathFromStrings(t,e){const s=[],i=[];for(const t of e){const[e,r]=this.domStrings.find(t);s.push(...e),i.push(...r)}const r=new this.options.MathList;for(const e of t.findMath(s))r.push(this.mathItem(e,t,i));return r}findMathFromDOM(t,e){const s=[];for(const i of e)for(const e of t.findMath(i))s.push(new this.options.MathItem(e.math,t,e.display,e.start,e.end));return new this.options.MathList(...s)}updateDocument(){return this.processed.isSet("updateDocument")||(this.addPageElements(),this.addStyleSheet(),super.updateDocument(),this.processed.set("updateDocument")),this}addPageElements(){const t=this.adaptor,e=t.body(this.document),s=this.documentPageElements();if(s){const i=t.firstChild(e);i?t.insert(s,i):t.append(e,s)}}addStyleSheet(){const t=this.documentStyleSheet(),e=this.adaptor;if(t&&!e.parent(t)){const s=e.head(this.document),i=this.findSheet(s,e.getAttribute(t,"id"));i?e.replace(t,i):e.append(s,t)}}findSheet(t,e){if(e)for(const s of this.adaptor.tags(t,"style"))if(this.adaptor.getAttribute(s,"id")===e)return s;return null}removeFromDocument(t=!1){if(this.processed.isSet("updateDocument"))for(const e of this.math)e.state()>=jt.INSERTED&&e.state(jt.TYPESET,t);return this.processed.clear("updateDocument"),this}documentStyleSheet(){return this.outputJax.styleSheet(this)}documentPageElements(){return this.outputJax.pageElements(this)}addStyles(t){this.styles.push(t),"insertStyles"in this.outputJax&&this.outputJax.insertStyles(t)}getStyles(){return this.styles}}ks.KIND="HTML",ks.OPTIONS=Object.assign(Object.assign({},fs.OPTIONS),{renderActions:(0,Ot.expandable)(Object.assign(Object.assign({},fs.OPTIONS.renderActions),{styles:[jt.STYLES,"","updateStyleSheet",!1]})),MathList:ws,MathItem:Ts,DomStrings:null});class Ms extends xs{constructor(){super(...arguments),this.documentClass=ks}handlesDocument(t){const e=this.adaptor;if("string"==typeof t)try{t=e.parse(t,"text/html")}catch(t){}return t instanceof e.window.Document||t instanceof e.window.HTMLElement||t instanceof e.window.DocumentFragment}create(t,e){const s=this.adaptor;if("string"==typeof t)t=s.parse(t,"text/html");else if(t instanceof s.window.HTMLElement||t instanceof s.window.DocumentFragment){const e=t;t=s.parse("","text/html"),s.append(s.body(t),e)}return super.create(t,e)}}function Ss(t){const e=new Ms(t);return Ds.mathjax.handlers.register(e),e}class _s{get cssText(){return this.getStyleString()}constructor(t=null){this.styles={},this.addStyles(t)}addStyles(t){if(t)for(const e of Object.keys(t))this.styles[e]||(this.styles[e]={}),Object.assign(this.styles[e],t[e])}removeStyles(...t){for(const e of t)delete this.styles[e]}clear(){this.styles={}}getStyleString(){return this.getStyleRules().join("\n\n")}getStyleRules(t=this.styles,e=""){const s=Object.keys(t),i=new Array(s.length);let r=0;for(const n of s){const s=t[n];i[r++]=`${e}${n} {\n${this.getStyleDefString(s,e)}\n${e}}`}return i}getStyleDefString(t,e){const s=Object.keys(t),i=new Array(s.length);let r=0;for(const n of s)i[r++]=t[n]instanceof Object?e+this.getStyleRules({[n]:t[n]},e+"  ").join("\n"+e):"  "+e+n+": "+t[n]+";";return i.join("\n"+e)}}var js,Ps=s(939);const Bs=!!(null===(js=Ps.context.window)||void 0===js?void 0:js.HTMLDialogElement);class Ws{constructor(t){this.minW=200,this.minH=80,this.tx=0,this.ty=0,this.dragging=!1,this.events=[["mousemove",this.MouseMove.bind(this)],["mouseup",this.MouseUp.bind(this)]],this.mode="",this.actions={down:{move:t=>{t.dialog.classList.add("mjx-moving")}},move:{move:(t,e)=>[e.x-t.x,e.y-t.y,0,0],top:(t,e)=>[0,(e.y-t.y)/2,0,t.y-e.y],bottom:(t,e)=>[0,(e.y-t.y)/2,0,e.y-t.y],left:(t,e)=>[(e.x-t.x)/2,0,t.x-e.x,0],right:(t,e)=>[(e.x-t.x)/2,0,e.x-t.x,0],topleft:(t,e)=>[(e.x-t.x)/2,(e.y-t.y)/2,t.x-e.x,t.y-e.y],topright:(t,e)=>[(e.x-t.x)/2,(e.y-t.y)/2,e.x-t.x,t.y-e.y],botleft:(t,e)=>[(e.x-t.x)/2,(e.y-t.y)/2,t.x-e.x,e.y-t.y],botright:(t,e)=>[(e.x-t.x)/2,(e.y-t.y)/2,e.x-t.x,e.y-t.y]},up:{move:t=>{t.dialog.classList.remove("mjx-moving")}},keymove:{left:()=>[-5,0,0,0],right:()=>[5,0,0,0],up:()=>[0,-5,0,0],down:()=>[0,5,0,0]},bigmove:{left:()=>[-20,0,0,0],right:()=>[20,0,0,0],up:()=>[0,-20,0,0],down:()=>[0,20,0,0]},keysize:{left:()=>[-3,0,-6,0],right:()=>[3,0,6,0],up:()=>[0,-3,0,-6],down:()=>[0,3,0,6]},bigsize:{left:()=>[-10,0,-20,0],right:()=>[10,0,20,0],up:()=>[0,-10,0,-20],down:()=>[0,10,0,20]}};const{adaptor:e,node:s=null}=t;this.init(e),this.node=s,this.background=Bs?null:e.node("mjx-dialog-background"),this.x=this.y=0,this.dragging=!1,this.action="",this.dialog=this.html(t),this.title=this.dialog.firstChild.firstChild.firstChild,this.content=this.dialog.firstChild.firstChild.nextSibling;const i=this.dialog.lastChild;i.addEventListener("click",this.closeDialog.bind(this)),i.addEventListener("keydown",this.actionKey.bind(this,this.closeDialog.bind(this)));const r=this.dialog.lastChild.previousSibling;r.addEventListener("click",this.helpDialog.bind(this,e)),r.addEventListener("keydown",this.actionKey.bind(this,this.helpDialog.bind(this,e))),this.noDrag=Array.from(this.dialog.querySelectorAll('[data-drag="none"]'))}init(t){const e=this.constructor;if(!t.document.head.querySelector("#"+e.styleId)){const s=t.node("style",{id:e.styleId});s.textContent=new _s(e.styles).cssText,t.document.head.append(s)}}html(t){const{title:e,message:s,adaptor:i,styles:r=null,extraNodes:n=[],className:o=Ws.className}=t;if(r){const t=i.node("style");t.textContent=new _s(r).cssText,n.unshift(t)}const a="mjx-dialog-label-"+Ws.id++,l=i.node("dialog",{closedby:"any",class:("mjx-dialog "+o).trim()},[i.node("mjx-dialog",{"aria-labeledby":a},[i.node("mjx-title",{},[i.node("h1",{id:a,tabIndex:0})]),i.node("div",{"data-drag":"none",tabIndex:0})]),...n,i.node("mjx-dialog-spacer",{"aria-hidden":!0}),i.node("mjx-dialog-drag",{"data-drag":"top","aria-hidden":!0}),i.node("mjx-dialog-drag",{"data-drag":"bottom","aria-hidden":!0}),i.node("mjx-dialog-drag",{"data-drag":"left","aria-hidden":!0}),i.node("mjx-dialog-drag",{"data-drag":"right","aria-hidden":!0}),i.node("mjx-dialog-drag",{"data-drag":"topleft","aria-hidden":!0}),i.node("mjx-dialog-drag",{"data-drag":"topright","aria-hidden":!0}),i.node("mjx-dialog-drag",{"data-drag":"botleft","aria-hidden":!0}),i.node("mjx-dialog-drag",{"data-drag":"botright","aria-hidden":!0}),i.node("mjx-dialog-help",{class:"mjx-dialog-button","data-drag":"none",tabIndex:0,role:"button","aria-label":"Dialog Help"},[i.node("mjx-dialog-icon",{"aria-hidden":!0},[i.text("?")])]),i.node("mjx-dialog-close",{class:"mjx-dialog-button","data-drag":"none",tabIndex:0,role:"button","aria-label":"Close Dialog Box"},[i.node("mjx-dialog-icon",{"aria-hidden":!0},[i.text("\xd7")])])]);return l.firstChild.firstChild.firstChild.innerHTML=e,l.firstChild.childNodes[1].innerHTML=s,l}attach(){Bs?(this.dialog.addEventListener("mousedown",this.MouseDown.bind(this)),this.dialog.addEventListener("keydown",this.KeyDown.bind(this),!0),document.body.append(this.dialog),this.dialog.showModal()):(this.background.addEventListener("mousedown",this.MouseDown.bind(this)),this.background.addEventListener("keydown",this.KeyDown.bind(this),!0),this.dialog.setAttribute("tabindex","0"),this.dialog.addEventListener("click",this.stop),this.background.append(this.dialog),document.body.append(this.background)),Ps.context.window.addEventListener("visibilitychange",this.Visibility.bind(this)),this.minW=Math.min(this.minW,this.dialog.clientWidth-8),this.minH=Math.min(this.minH,this.dialog.clientHeight-this.title.offsetHeight-8),this.title.focus()}dragAction(t,e=null){e&&this.stop(e);const s=this.actions[t][this.action],i=s?s(this,e):null;if(!i)return;let[r,n,o,a]=i;if(o){const t=this.w+o;t>=this.minW?(this.x=null==e?void 0:e.x,this.w=t,this.dialog.style.maxWidth=this.dialog.style.width=t+"px"):r=0}if(a){const t=this.h+a;t>=this.minH+this.title.offsetHeight?(this.y=null==e?void 0:e.y,this.h=t,this.dialog.style.maxHeight=this.dialog.style.height=t+"px"):n=0}(r||n)&&(r&&(this.x=null==e?void 0:e.x,this.tx+=r||0),n&&(this.y=null==e?void 0:e.y,this.ty+=n||0),this.dialog.style.transform=`translate(${this.tx}px, ${this.ty}px)`)}MouseDown(t){const e=t.target;if(!(1!==t.buttons||t.shiftKey||t.metaKey||t.altKey||t.ctrlKey))if(this.inDialog(t)){for(const t of this.noDrag)if(e===t||t.contains(e))return;this.action=e.getAttribute("data-drag")||"move",this.startDrag(t),this.dragAction("down",t)}else this.closeDialog(t)}MouseMove(t){1!==t.buttons&&this.endDrag(),this.dragging&&this.dragAction("move",t)}MouseUp(t){this.dragging&&(this.dragAction("up",t),this.endDrag())}Visibility(){Ps.context.document.hidden&&this.closeDialog()}KeyDown(t){const e=this.constructor.keyActions.get(t.key);e&&e(this,t)}escKey(t){this.closeDialog(t)}aKey(t){(t.ctrlKey||t.metaKey)&&(this.selectAll(),this.stop(t))}mKey(t){this.mode="move"===this.mode?"":"move",this.stop(t)}sKey(t){this.mode="size"===this.mode?"":"size",this.stop(t)}arrowKey(t,e){t.ctrlKey||this.dragging||(this.action=e,this.getWH(),t.altKey||"move"===this.mode?(this.dragAction(t.shiftKey?"bigmove":"keymove"),this.stop(t)):(t.metaKey||"size"===this.mode)&&(this.dragAction(t.shiftKey?"bigsize":"keysize"),this.stop(t)),this.action="")}actionKey(t,e){"Enter"!==e.code&&"Space"!==e.code||t(e)}selectAll(){document.getSelection().selectAllChildren(this.content)}copyToClipboard(){this.selectAll();try{document.execCommand("copy")}catch(t){alert(`Can't copy to clipboard: ${t.message}`)}document.getSelection().removeAllRanges()}startDrag(t){this.x=t.x,this.y=t.y,this.getWH(),this.dragging=!0;const e=this.background||this.dialog;for(const[t,s]of 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