From e56e49bf7dd893b19bf058be4cd24d6cd5bc425e Mon Sep 17 00:00:00 2001
From: mderrier <maximilien.derrier@gmail.com>
Date: Fri, 26 Jul 2019 16:31:26 +0200
Subject: [PATCH] feat(ios10): fix

---
 dist/mathlive.js    | 918 +++++++++++++++++++++++++++++++++++++++++++-
 npm-shrinkwrap.json |   2 +-
 package.json        |   6 +-
 3 files changed, 921 insertions(+), 5 deletions(-)

diff --git a/dist/mathlive.js b/dist/mathlive.js
index 1b80b1806..4aa2cc905 100644
--- a/dist/mathlive.js
+++ b/dist/mathlive.js
@@ -1 +1,917 @@
-var global,factory;global=this,factory=function(){const t=0,e=1,i=2,s=3,a=4,o=5,n=6,r=7,l=8,c=9,h=10,d=11,p=12;function m(t,e){e=e||0;const i=t.charCodeAt(e);if(55296<=i&&i<=56319&&e<t.length-1){const s=i,a=t.charCodeAt(e+1);return 56320<=a&&a<=57343?1024*(s-55296)+(a-56320)+65536:s}if(56320<=i&&i<=57343&&e>=1){const s=t.charCodeAt(e-1),a=i;return 55296<=s&&s<=56319?1024*(s-55296)+(a-56320)+65536:a}return i}function u(u,g){if((g=g||0)<0)return 0;if(g>=u.length-1)return u.length;let y=f(m(u,g));for(let k=g+1;k<u.length;k++){if(55296<=u.charCodeAt(k-1)&&u.charCodeAt(k-1)<=56319&&56320<=u.charCodeAt(k)&&u.charCodeAt(k)<=57343)continue;const g=f(m(u,k));if(x=g,!((b=y)===d&&x===p||b===s&&x===d||b===d&&x===s||b===t&&x===e||b!==i&&b!==t&&b!==e&&x!==i&&x!==t&&x!==e&&(b===n&&(x===n||x===r||x===c||x===h)||!(b!==c&&b!==r||x!==r&&x!==l)||(b===h||b===l)&&x===l||b===a&&x===a||x===s||x===o)))return k;y=g}var b,x;return u.length}function f(m){return 13===m?t:10===m?e:0<=m&&m<=9||11<=m&&m<=12||14<=m&&m<=31||127<=m&&m<=159||173===m||1536<=m&&m<=1541||1564===m||1757===m||1807===m||6158===m||8203===m||8206<=m&&m<=8207||8232===m||8233===m||8234<=m&&m<=8238||8288<=m&&m<=8292||8293===m||8294<=m&&m<=8303||55296<=m&&m<=57343||65279===m||65520<=m&&m<=65528||65529<=m&&m<=65531||69821===m||113824<=m&&m<=113827||119155<=m&&m<=119162||917504===m||917505===m||917506<=m&&m<=917535||917536<=m&&m<=917631||917632<=m&&m<=917759||918e3<=m&&m<=921599?i:768<=m&&m<=879||1155<=m&&m<=1159||1160<=m&&m<=1161||1425<=m&&m<=1469||1471===m||1473<=m&&m<=1474||1476<=m&&m<=1477||1479===m||1552<=m&&m<=1562||1611<=m&&m<=1631||1648===m||1750<=m&&m<=1756||1759<=m&&m<=1764||1767<=m&&m<=1768||1770<=m&&m<=1773||1809===m||1840<=m&&m<=1866||1958<=m&&m<=1968||2027<=m&&m<=2035||2070<=m&&m<=2073||2075<=m&&m<=2083||2085<=m&&m<=2087||2089<=m&&m<=2093||2137<=m&&m<=2139||2275<=m&&m<=2306||2362===m||2364===m||2369<=m&&m<=2376||2381===m||2385<=m&&m<=2391||2402<=m&&m<=2403||2433===m||2492===m||2494===m||2497<=m&&m<=2500||2509===m||2519===m||2530<=m&&m<=2531||2561<=m&&m<=2562||2620===m||2625<=m&&m<=2626||2631<=m&&m<=2632||2635<=m&&m<=2637||2641===m||2672<=m&&m<=2673||2677===m||2689<=m&&m<=2690||2748===m||2753<=m&&m<=2757||2759<=m&&m<=2760||2765===m||2786<=m&&m<=2787||2817===m||2876===m||2878===m||2879===m||2881<=m&&m<=2884||2893===m||2902===m||2903===m||2914<=m&&m<=2915||2946===m||3006===m||3008===m||3021===m||3031===m||3072===m||3134<=m&&m<=3136||3142<=m&&m<=3144||3146<=m&&m<=3149||3157<=m&&m<=3158||3170<=m&&m<=3171||3201===m||3260===m||3263===m||3266===m||3270===m||3276<=m&&m<=3277||3285<=m&&m<=3286||3298<=m&&m<=3299||3329===m||3390===m||3393<=m&&m<=3396||3405===m||3415===m||3426<=m&&m<=3427||3530===m||3535===m||3538<=m&&m<=3540||3542===m||3551===m||3633===m||3636<=m&&m<=3642||3655<=m&&m<=3662||3761===m||3764<=m&&m<=3769||3771<=m&&m<=3772||3784<=m&&m<=3789||3864<=m&&m<=3865||3893===m||3895===m||3897===m||3953<=m&&m<=3966||3968<=m&&m<=3972||3974<=m&&m<=3975||3981<=m&&m<=3991||3993<=m&&m<=4028||4038===m||4141<=m&&m<=4144||4146<=m&&m<=4151||4153<=m&&m<=4154||4157<=m&&m<=4158||4184<=m&&m<=4185||4190<=m&&m<=4192||4209<=m&&m<=4212||4226===m||4229<=m&&m<=4230||4237===m||4253===m||4957<=m&&m<=4959||5906<=m&&m<=5908||5938<=m&&m<=5940||5970<=m&&m<=5971||6002<=m&&m<=6003||6068<=m&&m<=6069||6071<=m&&m<=6077||6086===m||6089<=m&&m<=6099||6109===m||6155<=m&&m<=6157||6313===m||6432<=m&&m<=6434||6439<=m&&m<=6440||6450===m||6457<=m&&m<=6459||6679<=m&&m<=6680||6683===m||6742===m||6744<=m&&m<=6750||6752===m||6754===m||6757<=m&&m<=6764||6771<=m&&m<=6780||6783===m||6832<=m&&m<=6845||6846===m||6912<=m&&m<=6915||6964===m||6966<=m&&m<=6970||6972===m||6978===m||7019<=m&&m<=7027||7040<=m&&m<=7041||7074<=m&&m<=7077||7080<=m&&m<=7081||7083<=m&&m<=7085||7142===m||7144<=m&&m<=7145||7149===m||7151<=m&&m<=7153||7212<=m&&m<=7219||7222<=m&&m<=7223||7376<=m&&m<=7378||7380<=m&&m<=7392||7394<=m&&m<=7400||7405===m||7412===m||7416<=m&&m<=7417||7616<=m&&m<=7669||7676<=m&&m<=7679||8204<=m&&m<=8205||8400<=m&&m<=8412||8413<=m&&m<=8416||8417===m||8418<=m&&m<=8420||8421<=m&&m<=8432||11503<=m&&m<=11505||11647===m||11744<=m&&m<=11775||12330<=m&&m<=12333||12334<=m&&m<=12335||12441<=m&&m<=12442||42607===m||42608<=m&&m<=42610||42612<=m&&m<=42621||42654<=m&&m<=42655||42736<=m&&m<=42737||43010===m||43014===m||43019===m||43045<=m&&m<=43046||43204===m||43232<=m&&m<=43249||43302<=m&&m<=43309||43335<=m&&m<=43345||43392<=m&&m<=43394||43443===m||43446<=m&&m<=43449||43452===m||43493===m||43561<=m&&m<=43566||43569<=m&&m<=43570||43573<=m&&m<=43574||43587===m||43596===m||43644===m||43696===m||43698<=m&&m<=43700||43703<=m&&m<=43704||43710<=m&&m<=43711||43713===m||43756<=m&&m<=43757||43766===m||44005===m||44008===m||44013===m||64286===m||65024<=m&&m<=65039||65056<=m&&m<=65071||65438<=m&&m<=65439||66045===m||66272===m||66422<=m&&m<=66426||68097<=m&&m<=68099||68101<=m&&m<=68102||68108<=m&&m<=68111||68152<=m&&m<=68154||68159===m||68325<=m&&m<=68326||69633===m||69688<=m&&m<=69702||69759<=m&&m<=69761||69811<=m&&m<=69814||69817<=m&&m<=69818||69888<=m&&m<=69890||69927<=m&&m<=69931||69933<=m&&m<=69940||70003===m||70016<=m&&m<=70017||70070<=m&&m<=70078||70090<=m&&m<=70092||70191<=m&&m<=70193||70196===m||70198<=m&&m<=70199||70367===m||70371<=m&&m<=70378||70400<=m&&m<=70401||70460===m||70462===m||70464===m||70487===m||70502<=m&&m<=70508||70512<=m&&m<=70516||70832===m||70835<=m&&m<=70840||70842===m||70845===m||70847<=m&&m<=70848||70850<=m&&m<=70851||71087===m||71090<=m&&m<=71093||71100<=m&&m<=71101||71103<=m&&m<=71104||71132<=m&&m<=71133||71219<=m&&m<=71226||71229===m||71231<=m&&m<=71232||71339===m||71341===m||71344<=m&&m<=71349||71351===m||71453<=m&&m<=71455||71458<=m&&m<=71461||71463<=m&&m<=71467||92912<=m&&m<=92916||92976<=m&&m<=92982||94095<=m&&m<=94098||113821<=m&&m<=113822||119141===m||119143<=m&&m<=119145||119150<=m&&m<=119154||119163<=m&&m<=119170||119173<=m&&m<=119179||119210<=m&&m<=119213||119362<=m&&m<=119364||121344<=m&&m<=121398||121403<=m&&m<=121452||121461===m||121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Nt(t,e,i,s,a,o){let n,r,l,c;n=l=c=Pt.getValue("math",e),r=null;let h="Size1-Regular";"\\vert"===e||"\\lvert"===e||"\\rvert"===e||"\\mvert"===e||"\\mid"===e?l=n=c="∣":"\\Vert"===e||"\\lVert"===e||"\\rVert"===e||"\\mVert"===e||"\\|"===e?l=n=c="∥":"\\uparrow"===e?l=c="⏐":"\\Uparrow"===e?l=c="‖":"\\downarrow"===e?n=l="⏐":"\\Downarrow"===e?n=l="‖":"\\updownarrow"===e?(n="↑",l="⏐",c="↓"):"\\Updownarrow"===e?(n="⇑",l="‖",c="⇓"):"["===e||"\\lbrack"===e?(n="⎡",l="⎢",c="⎣",h="Size4-Regular"):"]"===e||"\\rbrack"===e?(n="⎤",l="⎥",c="⎦",h="Size4-Regular"):"\\lfloor"===e?(l=n="⎢",c="⎣",h="Size4-Regular"):"\\lceil"===e?(n="⎡",l=c="⎢",h="Size4-Regular"):"\\rfloor"===e?(l=n="⎥",c="⎦",h="Size4-Regular"):"\\rceil"===e?(n="⎤",l=c="⎥",h="Size4-Regular"):"("===e?(n="⎛",l="⎜",c="⎝",h="Size4-Regular"):")"===e?(n="⎞",l="⎟",c="⎠",h="Size4-Regular"):"\\{"===e||"\\lbrace"===e?(n="⎧",r="⎨",c="⎩",l="⎪",h="Size4-Regular"):"\\}"===e||"\\rbrace"===e?(n="⎫",r="⎬",c="⎭",l="⎪",h="Size4-Regular"):"\\lgroup"===e?(n="⎧",c="⎩",l="⎪",h="Size4-Regular"):"\\rgroup"===e?(n="⎫",c="⎭",l="⎪",h="Size4-Regular"):"\\lmoustache"===e?(n="⎧",c="⎭",l="⎪",h="Size4-Regular"):"\\rmoustache"===e?(n="⎫",c="⎩",l="⎪",h="Size4-Regular"):"\\surd"===e?(n="",c="⎷",l="",h="Size4-Regular"):"\\ulcorner"===e?(n="┌",l=c=" 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Zt(t,e,i,s,a,o){if(!e||0===e.length||"."===e)return Xt(t,a,t);let n;"<"===e||"\\lt"===e?e="\\langle":">"!==e&&"\\gt"!==e||(e="\\rangle"),n=Ht.includes(e)?Ut:$t.includes(e)?Gt:jt;const r=function(t,e,i,s){for(let o=Math.min(2,3-s.mathstyle.size);o<i.length&&"stack"!==i[o].type;o++){const s=M.getCharacterMetrics(t,"small"===(a=i[o]).type?"Main-Regular":"large"===a.type?"Size"+a.size+"-Regular":"Size4-Regular");if(s.defaultMetrics)return{type:"small",mathstyle:O.SCRIPT};let n=s.height+s.depth;if("small"===i[o].type&&(n*=i[o].mathstyle.sizeMultiplier),n>e)return i[o]}var a;return i[i.length-1]}(Pt.getValue("math",e),i,n,a);return"small"===r.type?function(t,e,i,s,a,o){const n=It("AMS-Regular",Pt.getValue("math",e)),r=et.makeStyleWrap(t,n,a.mathstyle,i,o);return s&&r.setTop((1-a.mathstyle.sizeMultiplier/i.sizeMultiplier)*a.mathstyle.metrics.axisHeight),r.setStyle("color",a.color),"number"==typeof a.opacity&&r.setStyle("opacity",a.opacity),r}(t,e,r.mathstyle,s,a,o):"large"===r.type?Rt(t,e,r.size,s,a,o):Nt(t,e,i,s,a,o)}function Xt(t,e,i){return et.makeSpanOfType(t,"","sizing"+e.mathstyle.adjustTo(O.TEXT)+" nulldelimiter "+(i||""))}var Jt={makeSizedDelim:function(t,e,i,s,a){return"."===e?Xt(t,s,a):("<"===e||"\\lt"===e?e="\\langle":">"!==e&&"\\gt"!==e||(e="\\rangle"),$t.includes(e)||Ht.includes(e)?Rt(t,e,i,!1,s,a):Wt.includes(e)?Nt(t,e,Vt[i],!1,s,a):null)},makeCustomSizedDelim:Zt,makeLeftRightDelim:function(t,e,i,s,a,o){if("."===e)return Xt(t,a,o);const n=a.mathstyle.metrics.axisHeight*a.mathstyle.sizeMultiplier,r=5/M.METRICS.ptPerEm;let l=s+n,c=i-n,h=901*(c=Math.max(l,c))/500;return l=2*c-r,Zt(t,e,h=Math.max(h,l),!0,a,o)}};const Yt=et.makeSpan,Qt=et.makeOrd,te=et.makeInner,ee=et.makeHlist,ie=et.makeVlist,se=/\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5/,ae=/^([A-Za-z]|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)$/,oe={size1:.5,size2:.7,size3:.8,size4:.9,size5:1,size6:1.2,size7:1.44,size8:1.73,size9:2.07,size10:2.49};class ne{constructor(t,e,i,s){this.mode=t,this.type=e,this.body=i,this.applyStyle(s)}getStyle(){return{color:this.phantom?"transparent":this.color,backgroundColor:this.phantom?"transparent":this.backgroundColor,fontFamily:this.baseFontFamily||this.fontFamily||this.autoFontFamily,fontShape:this.fontShape,fontSeries:this.fontSeries,fontSize:this.fontSize,cssId:this.cssId,cssClass:this.cssClass}}applyStyle(t){if(Object.assign(this,t),"none"===this.fontFamily&&(this.fontFamily=""),"auto"===this.fontShape&&(this.fontShape=""),"auto"===this.fontSeries&&(this.fontSeries=""),"none"===this.color&&(this.color=""),"none"===this.backgroundColor&&(this.backgroundColor=""),"auto"===this.fontSize&&(this.fontSize=""),this.fontSize&&(this.maxFontSize=oe[this.fontSize]),"math"===this.mode){const t="string"==typeof this.body?this.body:"";this.autoFontFamily="cmr",ae.test(t)?this.autoFontFamily="math":/\\imath|\\jmath|\\pounds/.test(t)?this.autoFontFamily="mainit":se.test(t)||"math"!==this.baseFontFamily||(this.autoFontFamily="cmr")}else"text"===this.mode&&("root"!==this.type&&(this.type=""),delete this.baseFontFamily,delete this.autoFontFamily)}getInitialBaseElement(){let t=this;return Array.isArray(this.body)&&this.body.length>0&&("first"!==this.body[0].type?t=this.body[0].getInitialBaseElement():this.body[1]&&(t=this.body[1].getInitialBaseElement())),t}getFinalBaseElement(){return Array.isArray(this.body)&&this.body.length>0?this.body[this.body.length-1].getFinalBaseElement():this}isCharacterBox(){const t=this.getInitialBaseElement();return/minner|mbin|mrel|mpunct|mopen|mclose|textord/.test(t.type)}forEach(t){if(t(this),Array.isArray(this.body))for(const e of this.body)e&&e.forEach(t);else this.body&&"object"==typeof this.body&&t(this.body);if(this.superscript)for(const e of this.superscript)e&&e.forEach(t);if(this.subscript)for(const e of this.subscript)e&&e.forEach(t);if(this.overscript)for(const e of this.overscript)e&&e.forEach(t);if(this.underscript)for(const e of this.underscript)e&&e.forEach(t);if(this.numer)for(const e of this.numer)e&&e.forEach(t);if(this.denom)for(const e of this.denom)e&&e.forEach(t);if(this.index)for(const e of this.index)e&&e.forEach(t);if(this.array)for(const e of this.array)for(const i of e)for(const e of i)e.forEach(t)}filter(t){let e=[];t(this)&&e.push(this);for(const i of["body","superscript","subscript","overscript","underscript","numer","denom","index"])if(Array.isArray(this[i]))for(const s of this[i])s&&(e=e.concat(s.filter(t)));if(Array.isArray(this.array))for(const i of this.array)for(const s of i)s&&(e=e.concat(s.filter(t)));return e}decomposeGroup(t){const e=t.clone({mathstyle:this.mathstyle}),i=Qt(he(e,this.body));return this.cssId&&(i.cssId=this.cssId),i.applyStyle({backgroundColor:this.backgroundColor,cssClass:this.cssClass}),i}decomposeArray(t){let e=this.colFormat;e&&0===e.length&&(e=[{align:"l"}]),e||(e=[{align:"l"},{align:"l"},{align:"l"},{align:"l"},{align:"l"},{align:"l"},{align:"l"},{align:"l"},{align:"l"},{align:"l"}]);const i=[];let s=0;for(const t of e)t.align&&s++;for(const t of this.array){let e=0;for(;e<t.length;){const a=[],o=Math.min(t.length,e+s);for(;e<o;)a.push(t[e++]);i.push(a)}}1===i[i.length-1].length&&0===i[i.length-1][0].length&&i.pop();const a=O.toMathstyle(this.mathstyle)||t.mathstyle,o=(this.arraystretch||1)*S.baselineskip,n=.7*o,r=.3*o;let l=0,c=0;const h=[],d=i.length;for(let e=0;e<d;++e){const s=i[e];c=Math.max(c,s.length);let a=n,o=r;const p=[];for(let e=0;e<s.length;++e){const i=he(t.clone({mathstyle:this.mathstyle}),s[e])||[],n=[Qt(null)].concat(i);o=Math.max(o,et.depth(n)),a=Math.max(a,et.height(n)),p.push(n)}let m=e===d-1?0:this.jot||0;this.rowGaps&&this.rowGaps[e]&&(m=this.rowGaps[e])>0&&(o<(m+=r)&&(o=m),m=0),p.height=a,p.depth=o,l+=a,p.pos=l,l+=o+m,h.push(p)}const p=l/2+a.metrics.axisHeight,m=[];for(let e=0;e<c;e++){const i=[];for(const t of h){const s=t[e];s&&(s.depth=t.depth,s.height=t.height,i.push(s),i.push(t.pos-p))}i.length>0&&m.push(ie(t,i,"individualShift"))}const u=[];let f=!1,g=!1,y=0,b=!this.lFence;for(const i of e){if(i.align&&y>=m.length)break;if(i.align&&y<m.length)f?u.push(re(2*S.arraycolsep)):(g||b)&&u.push(re(S.arraycolsep)),u.push(Yt(m[y],"col-align-"+i.align)),y++,f=!0,g=!1,b=!1;else if(void 0!==i.gap)"number"==typeof i.gap?u.push(re(i.gap)):u.push(le(t,h,p,i.gap)),f=!1,g=!1,b=!1;else if(i.rule){const e=Yt(null,"vertical-separator");e.setStyle("height",l,"em"),e.setStyle("margin-top",3*t.mathstyle.metrics.axisHeight-p,"em"),e.setStyle("vertical-align","top");let i=0;g?i=S.doubleRuleSep-S.arrayrulewidth:f&&(i=S.arraycolsep-S.arrayrulewidth),e.setLeft(i,"em"),u.push(e),f=!1,g=!0,b=!1}}if(f&&!this.rFence&&u.push(re(S.arraycolsep)),!(this.lFence&&"."!==this.lFence||this.rFence&&"."!==this.rFence))return Qt(u,"mtable");const x=Yt(u,"mtable"),k=et.height(x),v=et.depth(x);return Qt([this.bind(t,Jt.makeLeftRightDelim("mopen",this.lFence,k,v,t)),x,this.bind(t,Jt.makeLeftRightDelim("mclose",this.rFence,k,v,t))])}decomposeGenfrac(t){const e="auto"===this.mathstyle?t.mathstyle:O.toMathstyle(this.mathstyle),i=t.clone({mathstyle:e});let s=[];this.numerPrefix&&s.push(Qt(this.numerPrefix));const a=this.continuousFraction?e:e.fracNum();s=s.concat(he(i.clone({mathstyle:a}),this.numer));const o=ee(s,t.mathstyle.adjustTo(a));let n=[];this.denomPrefix&&n.push(Qt(this.denomPrefix));const r=this.continuousFraction?e:e.fracDen();n=n.concat(he(i.clone({mathstyle:r}),this.denom));const l=ee(n,t.mathstyle.adjustTo(r)),c=this.hasBarLine?S.defaultRuleThickness/e.sizeMultiplier:0;let h,d,p;e.size===O.DISPLAY.size?(h=e.metrics.num1,d=c>0?3*c:7*S.defaultRuleThickness,p=e.metrics.denom1):(c>0?(h=e.metrics.num2,d=c):(h=e.metrics.num3,d=3*S.defaultRuleThickness),p=e.metrics.denom2);const m=o?o.depth:0,u=l?l.height:0;let f;if(0===c){const t=h-m-(u-p);t<d&&(h+=.5*(d-t),p+=.5*(d-t)),f=ie(i,[o,-h,l,p],"individualShift")}else{const t=e.metrics.axisHeight;h-m-(t+.5*c)<d&&(h+=d-(h-m-(t+.5*c))),t-.5*c-(u-p)<d&&(p+=d-(t-.5*c-(u-p)));const s=Yt(null," frac-line");s.applyStyle(this.getStyle()),s.height=c;const a=[];o&&(a.push(o),a.push(-h)),a.push(s),a.push(c/2-t),l&&(a.push(l),a.push(p)),f=ie(i,a,"individualShift")}f.classes+=" mfrac",f.height*=e.sizeMultiplier/t.mathstyle.sizeMultiplier,f.depth*=e.sizeMultiplier/t.mathstyle.sizeMultiplier;const g=e.size===O.DISPLAY.size?e.metrics.delim1:e.metrics.delim2,y=Jt.makeCustomSizedDelim("mopen",this.leftDelim,g,!0,t.clone({mathstyle:e})),b=Jt.makeCustomSizedDelim("mclose",this.rightDelim,g,!0,t.clone({mathstyle:e}));return y.applyStyle(this.getStyle()),b.applyStyle(this.getStyle()),Qt([y,f,b],t.parentSize!==t.size?"sizing reset-"+t.parentSize+" "+t.size:"")}decomposeLeftright(t){if(!this.body)return this.leftDelim?new ne("math","mopen",this.leftDelim).decompose(t):this.rightDelim?new ne("math","mclose",this.rightDelim).decompose(t):null;const e=t.clone(),i=he(e,this.body),s=e.mathstyle;let a=0,o=0,n=[];if(a=et.height(i)*s.sizeMultiplier,o=et.depth(i)*s.sizeMultiplier,this.leftDelim&&(n.push(Jt.makeLeftRightDelim("mopen",this.leftDelim,a,o,e)),n[n.length-1].applyStyle(this.getStyle())),i){for(let t=0;t<i.length;t++)if(i[t].delim){const s=i[t].caret,n=/ML__selected/.test(i[t].classes);i[t]=Jt.makeLeftRightDelim("minner",i[t].delim,a,o,e),i[t].caret=s,i[t].selected(n)}n=n.concat(i)}if(this.rightDelim){let t,i=this.rightDelim;"?"===i&&(i=(i={"(":")","\\{":"\\}","\\[":"\\]","\\lbrace":"\\rbrace","\\langle":"\\rangle","\\lfloor":"\\rfloor","\\lceil":"\\rceil","\\vert":"\\vert","\\lvert":"\\rvert","\\Vert":"\\Vert","\\lVert":"\\rVert","\\lbrack":"\\rbrack","\\ulcorner":"\\urcorner","\\llcorner":"\\lrcorner","\\lgroup":"\\rgroup","\\lmoustache":"\\rmoustache"}[this.leftDelim])||this.leftDelim,t="ML__smart-fence__close"),n.push(Jt.makeLeftRightDelim("mclose",i,a,o,e,t)),n[n.length-1].applyStyle(this.getStyle())}return this.inner?te(n,s.cls()):n}decomposeSurd(t){const e=t.mathstyle,i=he(t.cramp(),this.body),s=S.defaultRuleThickness/e.sizeMultiplier;let a=s;e.id<O.TEXT.id&&(a=e.metrics.xHeight);let o=s+a/4;const n=Math.max(2*a,(et.height(i)+et.depth(i))*e.sizeMultiplier)+(o+s),r=Yt(Jt.makeCustomSizedDelim("","\\surd",n,!1,t),"sqrt-sign");r.applyStyle(this.getStyle());const l=r.height+r.depth-s;l>et.height(i)+et.depth(i)+o&&(o=(o+l-(et.height(i)+et.depth(i)))/2),r.setTop(r.height-et.height(i)-(o+s));const c=Yt(null,t.mathstyle.adjustTo(O.TEXT)+" sqrt-line");c.applyStyle(this.getStyle()),c.height=s;const h=ie(t,[i,o,c,s]);if(!this.index)return Qt([r,h],"sqrt");const d=t.clone({mathstyle:O.SCRIPTSCRIPT}),p=Yt(he(d,this.index),e.adjustTo(O.SCRIPTSCRIPT)),m=Math.max(r.height,h.height),u=Math.max(r.depth,h.depth),f=ie(t,[p],"shift",-.6*(m-u));return Qt([Yt(f,"root"),r,h],"sqrt")}decomposeAccent(t){const e=t.mathstyle;let i=he(t.cramp(),this.body);(this.superscript||this.subscript)&&(i=this.attachSupsub(t,Qt(i),"mord"));let s=0;Array.isArray(this.body)&&1===this.body.length&&this.body[0].isCharacterBox()&&(s=et.skew(i));const a=Math.min(et.height(i),e.metrics.xHeight),o=et.makeSymbol("Main-Regular",this.accent,"math");o.italic=0;const n="⃗"===this.accent?" accent-vec":"";let r=Yt(Yt(o),"accent-body"+n);return(r=ie(t,[i,-a,r])).children[1].setLeft(2*s),Qt(r,"accent")}decomposeLine(t){const e=t.mathstyle,i=he(t.cramp(),this.body),s=S.defaultRuleThickness/e.sizeMultiplier,a=Yt(null,t.mathstyle.adjustTo(O.TEXT)+" "+this.position+"-line");let o;if(a.height=s,a.maxFontSize=1,"overline"===this.position)o=ie(t,[i,3*s,a,s]);else{const e=Yt(i);o=ie(t,[s,a,3*s,e],"top",et.height(e))}return Qt(o,this.position)}decomposeOverunder(t){const e=he(t,this.body),i=t.clone({mathstyle:"scriptstyle"}),s=this.overscript?Yt(he(i,this.overscript),t.mathstyle.adjustTo(i.mathstyle)):null,a=this.underscript?Yt(he(i,this.underscript),t.mathstyle.adjustTo(i.mathstyle)):null;return ce(t,e,0,0,s,a,this.mathtype||"mrel")}decomposeOverlap(t){const e=Yt(he(t,this.body),"inner");return Qt([e,Yt(null,"fix")],"left"===this.align?"llap":"rlap")}decomposeRule(t){const e=t.mathstyle,i=Qt("","rule");let s=this.shift&&!isNaN(this.shift)?this.shift:0;s/=e.sizeMultiplier;const a=this.width/e.sizeMultiplier,o=this.height/e.sizeMultiplier;return i.setStyle("border-right-width",a,"em"),i.setStyle("border-top-width",o,"em"),i.setStyle("margin-top",-(o-s),"em"),i.setStyle("border-color",t.color),i.width=a,i.height=o+s,i.depth=-s,i}decomposeOp(t){const e=t.mathstyle;let i,s=!1;e.size===O.DISPLAY.size&&"string"==typeof this.body&&"\\smallint"!==this.body&&(s=!0);let a=0,o=0;if(this.symbol){const n=s?"Size2-Regular":"Size1-Regular";(i=et.makeSymbol(n,this.body,"op-symbol "+(s?"large-op":"small-op"))).type="mop",a=(i.height-i.depth)/2-e.metrics.axisHeight*e.sizeMultiplier,o=i.italic,this.bind(t,i)}else Array.isArray(this.body)?(i=et.makeOp(he(t,this.body)),this.bind(t,i)):i=this.makeSpan(t,this.body);if(this.superscript||this.subscript){const s=this.limits||"auto";return this.alwaysHandleSupSub||"limits"===s||"auto"===s&&e.size===O.DISPLAY.size?this.attachLimits(t,i,a,o):this.attachSupsub(t,i,"mop")}return this.symbol&&i.setTop(a),i}decomposeBox(t){const e=Qt(he(t,this.body)),i=Yt();i.setStyle("position","absolute");const s="number"==typeof this.padding?this.padding:S.fboxsep;i.setStyle("height",e.height+e.depth+2*s,"em"),0!==s?i.setStyle("width","calc(100% + "+2*s+"em)"):i.setStyle("width","100%"),i.setStyle("top",-s,"em"),i.setStyle("left",-s,"em"),i.setStyle("z-index","-1"),this.backgroundcolor&&i.setStyle("background-color",this.backgroundcolor),this.framecolor&&i.setStyle("border",S.fboxrule+"em solid "+this.framecolor),this.border&&i.setStyle("border",this.border),e.setStyle("display","inline-block"),e.setStyle("height",e.height+e.depth,"em"),e.setStyle("vertical-align",-e.depth+s,"em");const a=Yt([i,e]);return a.setStyle("position","relative"),a.setStyle("vertical-align",-s+e.depth,"em"),a.height=e.height+s,a.depth=e.depth+s,a.setLeft(s),a.setRight(s),a}decomposeEnclose(t){const e=Qt(he(t,this.body)),i="auto"===this.padding?.2:this.padding;e.setStyle("padding",i,"em"),e.setStyle("display","inline-block"),e.setStyle("height",e.height+e.depth,"em"),e.setStyle("left",-i,"em"),this.backgroundcolor&&"transparent"!==this.backgroundcolor&&e.setStyle("background-color",this.backgroundcolor);let s="";if(this.notation.box&&e.setStyle("border",this.borderStyle),this.notation.actuarial&&(e.setStyle("border-top",this.borderStyle),e.setStyle("border-right",this.borderStyle)),this.notation.madruwb&&(e.setStyle("border-bottom",this.borderStyle),e.setStyle("border-right",this.borderStyle)),this.notation.roundedbox&&(e.setStyle("border-radius",(et.height(e)+et.depth(e))/2,"em"),e.setStyle("border",this.borderStyle)),this.notation.circle&&(e.setStyle("border-radius","50%"),e.setStyle("border",this.borderStyle)),this.notation.top&&e.setStyle("border-top",this.borderStyle),this.notation.left&&e.setStyle("border-left",this.borderStyle),this.notation.right&&e.setStyle("border-right",this.borderStyle),this.notation.bottom&&e.setStyle("border-bottom",this.borderStyle),this.notation.horizontalstrike&&(s+='<line x1="3%"  y1="50%" x2="97%" y2="50%"',s+=` stroke-width="${this.strokeWidth}" stroke="${this.strokeColor}"`,s+=' stroke-linecap="round"',this.svgStrokeStyle&&(s+=` stroke-dasharray="${this.svgStrokeStyle}"`),s+="/>"),this.notation.verticalstrike&&(s+='<line x1="50%"  y1="3%" x2="50%" y2="97%"',s+=` stroke-width="${this.strokeWidth}" stroke="${this.strokeColor}"`,s+=' stroke-linecap="round"',this.svgStrokeStyle&&(s+=` stroke-dasharray="${this.svgStrokeStyle}"`),s+="/>"),this.notation.updiagonalstrike&&(s+='<line x1="3%"  y1="97%" x2="97%" y2="3%"',s+=` stroke-width="${this.strokeWidth}" stroke="${this.strokeColor}"`,s+=' stroke-linecap="round"',this.svgStrokeStyle&&(s+=` stroke-dasharray="${this.svgStrokeStyle}"`),s+="/>"),this.notation.downdiagonalstrike&&(s+='<line x1="3%"  y1="3%" x2="97%" y2="97%"',s+=` stroke-width="${this.strokeWidth}" stroke="${this.strokeColor}"`,s+=' stroke-linecap="round"',this.svgStrokeStyle&&(s+=` stroke-dasharray="${this.svgStrokeStyle}"`),s+="/>"),s){let t;return"none"!==this.shadow&&(t="auto"===this.shadow?"filter: drop-shadow(0 0 .5px rgba(255, 255, 255, .7)) drop-shadow(1px 1px 2px #333)":"filter: drop-shadow("+this.shadow+")"),et.makeSVG(e,s,t)}return e}decompose(t,e){let i=null;if(!this.type||/mord|minner|mbin|mrel|mpunct|mopen|mclose|textord/.test(this.type))(i="string"==typeof this.body?this.makeSpan(t,this.body):this.makeSpan(t,he(t,this.body))).type=this.type;else if("group"===this.type||"root"===this.type)i=this.decomposeGroup(t);else if("array"===this.type)i=this.decomposeArray(t);else if("genfrac"===this.type)i=this.decomposeGenfrac(t);else if("surd"===this.type)i=this.decomposeSurd(t);else if("accent"===this.type)i=this.decomposeAccent(t);else if("leftright"===this.type)i=this.decomposeLeftright(t);else if("delim"===this.type)(i=Yt(null,"")).delim=this.delim;else if("sizeddelim"===this.type)i=this.bind(t,Jt.makeSizedDelim(this.cls,this.delim,this.size,t));else if("line"===this.type)i=this.decomposeLine(t);else if("overunder"===this.type)i=this.decomposeOverunder(t);else if("overlap"===this.type)i=this.decomposeOverlap(t);else if("rule"===this.type)i=this.decomposeRule(t);else if("styling"===this.type);else if("msubsup"===this.type)i=Qt("​"),e&&(i.height=e[0].height,i.depth=e[0].depth);else if("mop"===this.type)i=this.decomposeOp(t);else if("space"===this.type)i=this.makeSpan(t," ");else if("spacing"===this.type)if("​"===this.body)i=this.makeSpan(t,"​");else if(" "===this.body)i="math"===this.mode?this.makeSpan(t," "):this.makeSpan(t," ");else if(this.width)i=Yt("​","mspace "),this.width>0?i.setWidth(this.width):i.setStyle("margin-left",this.width,"em");else{const t={qquad:"qquad",quad:"quad",enspace:"enspace",";":"thickspace",":":"mediumspace",",":"thinspace","!":"negativethinspace"}[this.body]||"quad";i=Yt("​","mspace "+t)}else"mathstyle"===this.type?t.setMathstyle(this.mathstyle):"box"===this.type?i=this.decomposeBox(t):"enclose"===this.type?i=this.decomposeEnclose(t):"command"===this.type||"error"===this.type?((i=this.makeSpan(t,this.body)).classes="",this.error&&(i.classes+=" ML__error"),this.suggestion&&(i.classes+=" ML__suggestion")):"placeholder"===this.type?i=this.makeSpan(t,"⬚"):"first"===this.type&&(i=this.makeSpan(t,"​"));if(!i)return i;if(this.caret&&"styling"!==this.type&&"msubsup"!==this.type&&"command"!==this.type&&"placeholder"!==this.type&&"first"!==this.type&&(Array.isArray(i)?i[i.length-1].caret=this.caret:i.caret=this.caret),!this.limits&&(this.superscript||this.subscript))if(Array.isArray(i)){const e=i[i.length-1];i[i.length-1]=this.attachSupsub(t,e,e.type)}else i=[this.attachSupsub(t,i,i.type)];return Array.isArray(i)?i:[i]}attachSupsub(t,e,i){if(!this.superscript&&!this.subscript)return e;const s=t.mathstyle;let a=null,o=null;if(this.superscript){const e=he(t.sup(),this.superscript);a=Yt(e,s.adjustTo(s.sup()))}if(this.subscript){const e=he(t.sub(),this.subscript);o=Yt(e,s.adjustTo(s.sub()))}let n,r=0,l=0;this.isCharacterBox()||(r=et.height(e)-s.metrics.supDrop,l=et.depth(e)+s.metrics.subDrop),n=s===O.DISPLAY?s.metrics.sup1:s.cramped?s.metrics.sup3:s.metrics.sup2;const c=O.TEXT.sizeMultiplier*s.sizeMultiplier,h=.5/S.ptPerEm/c;let d=null;if(o&&a){r=Math.max(r,n,a.depth+.25*s.metrics.xHeight),l=Math.max(l,s.metrics.sub2);const i=S.defaultRuleThickness;if(r-et.depth(a)-(et.height(o)-l)<4*i){l=4*i-(r-a.depth)+et.height(o);const t=.8*s.metrics.xHeight-(r-et.depth(a));t>0&&(r+=t,l-=t)}d=ie(t,[o,l,a,-r],"individualShift"),this.symbol&&d.children[0].setLeft(-et.italic(e))}else o&&!a?(l=Math.max(l,s.metrics.sub1,et.height(o)-.8*s.metrics.xHeight),(d=ie(t,[o],"shift",l)).children[0].setRight(h),this.isCharacterBox()&&d.children[0].setLeft(-et.italic(e))):!o&&a&&(r=Math.max(r,n,a.depth+.25*s.metrics.xHeight),(d=ie(t,[a],"shift",-r)).children[0].setRight(h));const p=Yt(d,"msubsup");return this.caret&&(p.caret=this.caret),et.makeSpanOfType(i,[e,p])}attachLimits(t,e,i,s){const a=this.superscript?Yt(he(t.sup(),this.superscript),t.mathstyle.adjustTo(t.mathstyle.sup())):null,o=this.subscript?Yt(he(t.sub(),this.subscript),t.mathstyle.adjustTo(t.mathstyle.sub())):null;return ce(t,e,i,s,a,o,"mop")}bind(t,e){return"first"!==this.type&&"​"!==this.body&&(this.id=function(t){let e;return"boolean"==typeof t.generateID&&t.generateID?e=Date.now().toString(36).slice(-2)+Math.floor(1e5*Math.random()).toString(36):"boolean"!=typeof t.generateID&&(t.generateID.overrideID?e=t.generateID.overrideID:(e=t.generateID.seed.toString(36),t.generateID.seed+=1)),e}(t),this.id&&(e.attributes||(e.attributes={}),e.attributes["data-atom-id"]=this.id)),e}makeSpan(t,e){const i="textord"===this.type?"mord":this.type,s=et.makeSpanOfType(i,e),a=this.getStyle();s.applyStyle(a);const o=a&&a.fontSize?a.fontSize:"size5";return o!==t.parentSize?(s.classes+=" sizing reset-"+t.parentSize,s.classes+=" "+o):t.parentSize!==t.size&&(s.classes+=" sizing reset-"+t.parentSize,s.classes+=" "+t.size),s.maxFontSize=Math.max(s.maxFontSize,t.sizeMultiplier||1),"text"===this.mode&&(s.classes+=" ML__text"),t.mathstyle.isTight()&&(s.isTight=!0),"math"!==this.mode&&(s.italic=0),s.setRight(s.italic),"number"==typeof t.opacity&&s.setStyle("opacity",t.opacity),this.bind(t,s),this.caret&&(this.superscript||this.subscript||(s.caret=this.caret,t.mathstyle.isTight()&&(s.isTight=!0))),s}}function re(t){const e=Yt("​","arraycolsep");return e.setWidth(t,"em"),e}function le(t,e,i,s){const a=[];for(const o of e){const e=Yt(he(t,s));e.depth=o.depth,e.height=o.height,a.push(e),a.push(o.pos-i)}return ie(t,a,"individualShift")}function ce(t,e,i,s,a,o,n){if(!a&&!o)return e;e=Yt(e);let r=0,l=0;a&&(r=Math.max(S.bigOpSpacing1,S.bigOpSpacing3-a.depth)),o&&(l=Math.max(S.bigOpSpacing2,S.bigOpSpacing4-o.height));let c=null;if(o&&a){const n=S.bigOpSpacing5+et.height(o)+et.depth(o)+l+et.depth(e)+i;(c=ie(t,[S.bigOpSpacing5,o,l,e,r,a,S.bigOpSpacing5],"bottom",n)).children[0].setLeft(-s),c.children[2].setLeft(s)}else if(o&&!a){const a=et.height(e)-i;(c=ie(t,[S.bigOpSpacing5,o,l,e],"top",a)).children[0].setLeft(-s)}else if(!o&&a){const o=et.depth(e)+i;(c=ie(t,[e,r,a,S.bigOpSpacing5],"bottom",o)).children[1].setLeft(s)}return et.makeSpanOfType(n,c,"op-limits")}function he(t,e){t instanceof K.Context||(t=new K.Context(t));const i=!t.generateID||!t.generateID.groupNumbers;let s=[];if(Array.isArray(e)){if(0===e.length)return s;if(1===e.length)(s=e[0].decompose(t))&&i&&e[0].isSelected&&s.forEach(t=>t.selected(!0));else{let a="none",o=e[1].type,n=[],r=null,l=null;for(let c=0;c<e.length;c++){"mbin"===e[c].type&&(/first|none|mrel|mpunct|mopen|mbin|mop/.test(a)||/none|mrel|mpunct|mclose/.test(o))&&(e[c].type="mord"),"​"===e[c].body&&(e[c].superscript||e[c].subscript)||(l=null),t.generateID.groupNumbers&&r&&"mord"===e[c].type&&/[0-9,.]/.test(e[c].latex)&&(t.generateID.overrideID=r);const h=e[c].decompose(t,l);if(t.generateID&&(t.generateID.overrideID=null),h){const a=[].concat.apply([],h);l=a,t.generateID&&t.generateID.groupNumbers&&("mord"===e[c].type&&/[0-9,.]/.test(e[c].latex)&&(r||(r=e[c].id)),("mord"!==e[c].type||/[0-9,.]/.test(e[c].latex)||e[c].superscript||e[c].subscript)&&r&&(r=null)),i&&e[c].isSelected?(n=n.concat(a)).forEach(t=>t.selected(!0)):(n.length>0&&(s=[...s,...n],n=[]),s=s.concat(a))}a=e[c].getFinalBaseElement().type,o=e[c+1]?e[c+1].getInitialBaseElement().type:"none"}n.length>0&&(s=[...s,...n],n=[])}}else e&&(s=e.decompose(t))&&i&&e.isSelected&&s.forEach(t=>t.selected(!0));if(!s||0===s.length)return null;if(t.mathstyle!==t.parentMathstyle){const e=t.mathstyle.sizeMultiplier/t.parentMathstyle.sizeMultiplier;for(const t of s)t.height*=e,t.depth*=e}if(t.size!==t.parentSize){const e=oe[t.size]/oe[t.parentSize];for(const t of s)t.height*=e,t.depth*=e}return s}var de={MathAtom:ne,decompose:he,makeRoot:function(t,e){const i=new ne(t=t||"math","root",e||[]);return 0!==i.body.length&&"first"===i.body[0].type||i.body.unshift(new ne("","first")),i},GREEK_REGEX:se};const pe={m0:"#3f3d99",m1:"#993d71",m2:"#998b3d",m3:"#3d9956",m4:"#3d5a99",m5:"#993d90",m6:"#996d3d",m7:"#43993d",m8:"#3d7999",m9:"#843d99"},me={apricot:"#FBB982",aquamarine:"#00B5BE",bittersweet:"#C04F17",black:"#221E1F",blue:"#2D2F92",bluegreen:"#00B3B8",blueviolet:"#473992",brickred:"#B6321C",brown:"#792500",burntorange:"#F7921D",cadetblue:"#74729A",carnationpink:"#F282B4",cerulean:"#00A2E3",cornflowerblue:"#41B0E4",cyan:"#00AEEF",dandelion:"#FDBC42",darkorchid:"#A4538A",emerald:"#00A99D",forestgreen:"#009B55",fuchsia:"#8C368C",goldenrod:"#FFDF42",gray:"#949698",green:"#00A64F",greenyellow:"#DFE674",junglegreen:"#00A99A",lavender:"#F49EC4",limegreen:"#8DC73E",magenta:"#EC008C",mahogany:"#A9341F",maroon:"#AF3235",melon:"#F89E7B",midnightblue:"#006795",mulberry:"#A93C93",navyblue:"#006EB8",olivegreen:"#3C8031",orange:"#F58137",orangered:"#ED135A",orchid:"#AF72B0",peach:"#F7965A",periwinkle:"#7977B8",pinegreen:"#008B72",plum:"#92268F",processblue:"#00B0F0",purple:"#99479B",rawsienna:"#974006",red:"#ED1B23",redorange:"#F26035",redviolet:"#A1246B",rhodamine:"#EF559F",royalblue:"#0071BC",royalpurple:"#613F99",rubinered:"#ED017D",salmon:"#F69289",seagreen:"#3FBC9D",sepia:"#671800",skyblue:"#46C5DD",springgreen:"#C6DC67",tan:"#DA9D76",tealblue:"#00AEB3",thistle:"#D883B7",turquoise:"#00B4CE",violet:"#58429B",violetred:"#EF58A0",white:"#FFFFFF",wildstrawberry:"#EE2967",yellow:"#FFF200",yellowgreen:"#98CC70",yelloworange:"#FAA21A"};var ue={stringToColor:function(t){const e=t.toLowerCase().split("!");let i,s,a,o=255,n=255,r=255,l=-1;const c=e.length>0&&"-"===e[0].charAt(0);c&&(e[0]=e[0].slice(1));for(let t=0;t<e.length;t++){i=o,s=n,a=r;let c=e[t].match(/([a-z0-9]*)/);c&&(c=c[1]);let h=me[c]||pe[c];h||(h=e[t]);let d=h.match(/^#([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})$/i);if(d&&d[1]&&d[2]&&d[3])o=Math.max(0,Math.min(255,parseInt(d[1],16))),n=Math.max(0,Math.min(255,parseInt(d[2],16))),r=Math.max(0,Math.min(255,parseInt(d[3],16)));else if((d=h.match(/^#([0-9a-f]{3})$/i))&&d[1]){const t=parseInt(d[1][0],16),e=parseInt(d[1][1],16),i=parseInt(d[1][2],16);o=Math.max(0,Math.min(255,16*t+t)),n=Math.max(0,Math.min(255,16*e+e)),r=Math.max(0,Math.min(255,16*i+i))}else{if(!((d=h.match(/^rgb\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\)$/i))&&d[1]&&d[2]&&d[3]))return null;o=Math.max(0,Math.min(255,parseInt(d[1]))),n=Math.max(0,Math.min(255,parseInt(d[2]))),r=Math.max(0,Math.min(255,parseInt(d[3])))}l>=0&&(o=(1-l)*o+l*i,n=(1-l)*n+l*s,r=(1-l)*r+l*a,l=-1),t+1<e.length&&(l=Math.max(0,Math.min(100,parseInt(e[++t])))/100)}return l>=0&&(o=l*o+(1-l)*i,n=l*n+(1-l)*s,r=l*r+(1-l)*a),c&&(o=255-o,n=255-n,r=255-r),"#"+("00"+Math.round(o).toString(16)).slice(-2)+("00"+Math.round(n).toString(16)).slice(-2)+("00"+Math.round(r).toString(16)).slice(-2)},colorToString:function(t){let e=t.toUpperCase();for(const t in me)if(me[t]===e){e=t;break}for(const t in pe)if(pe[t]===e){e=t;break}return e},AREA_COLORS:["#d35d60","#7293cb","#e1974d","#84bb5d","#9066a7","#aD6a58","#f5a4ce","#fff590","#212121","#818787","#d4d5d2","#ffffff"],LINE_COLORS:["#cc2428","#3769b1","#da7e30","#409852","#6b4c9a","#922426","#e7298a","#ffe907","#000000","#525055","#adafaa","#ffffff"]};const fe=de.MathAtom;class ge{constructor(t,e,i){this.tokens=t,this.index=0,this.args=e,this.macros=i,this.mathList=[],this.style={},this.parseMode="math",this.tabularMode=!1,this.endCount=0}swapMathList(t){const e=this.mathList;return this.mathList=t||[],e}swapParseMode(t){const e=this.parseMode;return this.parseMode=t,e}end(){return this.endCount++,this.index>=this.tokens.length||this.endCount>1e3}get(){return this.endCount=0,this.index<this.tokens.length?this.tokens[this.index++]:null}peek(t){const e=this.index+(t||0);return e<this.tokens.length?this.tokens[e]:null}lastMathAtom(){const t=0===this.mathList.length?"none":this.mathList[this.mathList.length-1].type;if("mop"!==t&&"msubsup"!==t){const t=new fe(this.parseMode,"msubsup","​");t.attributes={"aria-hidden":!0},this.mathList.push(t)}return this.mathList[this.mathList.length-1]}hasToken(t){const e=this.index;return e<this.tokens.length&&this.tokens[e].type===t}hasLiteral(t){const e=this.index;return e<this.tokens.length&&"literal"===this.tokens[e].type&&(!t||this.tokens[e].value===t)}hasLiteralPattern(t){return this.hasToken("literal")&&t.test(this.tokens[this.index].value)}hasCommand(t){const e=this.index;return e<this.tokens.length&&"command"===this.tokens[e].type&&this.tokens[e].value===t}hasInfixCommand(){const t=this.index;if(t<this.tokens.length&&"command"===this.tokens[t].type){const e=Pt.getInfo("\\"+this.tokens[t].value,this.parseMode,this.macros);return e&&e.infix}return!1}hasColumnSeparator(){const t=this.index;return!!(this.tabularMode&&t<this.tokens.length)&&"literal"===this.tokens[t].type&&"&"===this.tokens[t].value}hasRowSeparator(){const t=this.index;return!!(this.tabularMode&&t<this.tokens.length)&&"command"===this.tokens[t].type&&("\\"===this.tokens[t].value||"cr"===this.tokens[t].value)}parseColumnSeparator(){return!!this.hasColumnSeparator()&&(this.index++,!0)}placeholder(){if(this.args&&"string"==typeof this.args["?"])return ye(x.tokenize(this.args["?"]),this.parseMode,null,this.macros);const t=new fe(this.parseMode,"placeholder","?",this.style);return t.captureSelection=!0,[t]}hasImplicitCommand(t){if(this.index<this.tokens.length){const e=this.tokens[this.index];if("command"===e.type)return t.includes(e.value)}return!1}parseRowSeparator(){return!!this.hasRowSeparator()&&(this.index++,!0)}parseToken(t){return!!this.hasToken(t)&&(this.index++,!0)}skipWhitespace(){let t=!1;for(;this.hasToken("space");)this.index++,t=!0;return t}skipUntilToken(t){for(;!this.end()&&!this.parseToken(t);)this.get()}parseCommand(t){return!!this.hasCommand(t)&&(this.index++,!0)}parseLiteral(t){return!!this.hasLiteral(t)&&(this.index++,!0)}parseFiller(){let t=!1,e=!1;do{const i=this.skipWhitespace(),s=this.parseCommand("relax");t=t||i||s,e=!i&&!s}while(!e);return t}parseKeyword(t){const e=this.index;let i=this.end(),s="";for(;!i;){const e=this.get();"literal"===e.type&&(s+=e.value),i=this.end()||"literal"!==e.type||s.length>=t.length}const a=t.toUpperCase()===s.toUpperCase();return a||(this.index=e),a}scanString(){let t="",e=this.end();for(;!e;){if(this.hasLiteral("]"))e=!0;else if(this.hasToken("literal"))t+=this.get().value;else if(this.skipWhitespace())t+=" ";else if(this.hasToken("command")){const e=this.get();"space"===e.value?t+=" ":t+=e.value}else e=!0;e=e||this.end()}return t}scanColor(){return ue.stringToColor(this.scanString())}scanNumber(t){const e=this.parseLiteral("-");e||this.parseLiteral("+"),this.skipWhitespace(),t=!!t;let i=10,s=/[0-9]/;this.parseLiteral("'")?(i=8,s=/[0-7]/,t=!0):(this.parseLiteral('"')||this.parseLiteral("x"))&&(i=16,s=/[0-9A-F]/,t=!0);let a="";for(;this.hasLiteralPattern(s);)a+=this.get().value;if(!t&&(this.parseLiteral(".")||this.parseLiteral(",")))for(a+=".";this.hasLiteralPattern(s);)a+=this.get().value;const o=t?parseInt(a,i):parseFloat(a);return e?-o:o}scanDimen(){const t=this.scanNumber(!1);return this.skipWhitespace(),this.parseKeyword("pt")?M.toEm(t,"pt"):this.parseKeyword("mm")?M.toEm(t,"mm"):this.parseKeyword("cm")?M.toEm(t,"cm"):this.parseKeyword("ex")?M.toEm(t,"ex"):this.parseKeyword("px")?M.toEm(t,"px"):this.parseKeyword("em")?M.toEm(t,"em"):this.parseKeyword("bp")?M.toEm(t,"bp"):this.parseKeyword("dd")?M.toEm(t,"dd"):this.parseKeyword("pc")?M.toEm(t,"pc"):this.parseKeyword("in")?M.toEm(t,"in"):this.parseKeyword("mu")?M.toEm(t,"mu"):M.toEm(t,"pt")}scanSkip(){const t=this.scanDimen();return this.skipWhitespace(),this.parseKeyword("plus")&&this.scanDimen(),this.skipWhitespace(),this.parseKeyword("minus")&&this.scanDimen(),t}scanColspec(){this.skipWhitespace();const t=[];for(;!this.end()&&!this.hasToken("}")&&!this.hasLiteral("]");)if(this.hasLiteral()){const e=this.get().value;if("lcr".includes(e))t.push({align:e});else if("|"===e)t.push({rule:!0});else if("@"===e){if(this.parseToken("{")){const e=this.swapParseMode("math");t.push({gap:this.scanImplicitGroup(t=>"}"===t.type)}),this.swapParseMode(e)}this.parseToken("}")}}return t}scanModeSet(){let t;if(this.parseCommand("(")&&(t=")"),!t&&this.parseCommand("[")&&(t="]"),!t)return null;const e=this.swapParseMode("math"),i=new fe("math","group");return i.mathstyle=")"===t?"textstyle":"displaystyle",i.body=this.scanImplicitGroup(e=>"command"===e.type&&e.value===t),this.parseCommand(t),this.swapParseMode(e),i.body&&0!==i.body.length?i:null}scanModeShift(){if(!this.hasToken("$")&&!this.hasToken("$$"))return null;const t=this.get().type,e=new fe("math","group");e.mathstyle="$"===t?"textstyle":"displaystyle",e.latexOpen="textstyle"===e.mathstyle?"$":"$$",e.latexClose=e.latexOpen;const i=this.swapParseMode("math");return e.body=this.scanImplicitGroup(e=>e.type===t),this.parseToken(t),this.swapParseMode(i),e.body&&0!==e.body.length?e:null}scanEnvironment(){if(!this.parseCommand("begin"))return null;const t=this.scanArg("string"),e=Pt.getEnvironmentInfo(t),i=[];if(e&&e.params)for(const t of e.params)if(t.optional){const e=this.scanOptionalArg(t.type);i.push(e)}else i.push(this.scanArg(t.type));const s=this.parseMode,a=this.tabularMode,o=this.swapMathList([]);this.tabularMode=e.tabular;const n=[],r=[];let l=[],c=!1;do{if(!(c=this.end())&&this.parseCommand("end")&&(c=this.scanArg("string")===t),!c)if(this.parseColumnSeparator())l.push(this.swapMathList([]));else if(this.parseRowSeparator()){l.push(this.swapMathList([]));let t=0;this.skipWhitespace(),this.parseLiteral("[")&&(t=this.scanDimen(),this.skipWhitespace(),this.parseLiteral("]")),r.push(t||0),n.push(l),l=[]}else this.mathList=this.mathList.concat(this.scanImplicitGroup())}while(!c);l.push(this.swapMathList([])),l.length>0&&n.push(l);const h=this.swapMathList(o);if(this.parseMode=s,this.tabularMode=a,!e.tabular&&0===h.length)return null;if(e.tabular&&0===n.length)return null;const d=new fe(this.parseMode,"array",h,e.parser?e.parser(t,i,n):{});return d.array=n,d.rowGaps=r,d.env={...e},d.env.name=t,d}scanImplicitGroup(t){const e=this.style;t||(t=(t=>"}"===t.type||"literal"===t.type&&"&"===t.value||"command"===t.type&&/^(end|cr|\\)$/.test(t.value)));let i=null,s=null;const a=this.swapMathList([]);for(;!this.end()&&!t(this.peek());)if(this.hasImplicitCommand(["displaystyle","textstyle","scriptstyle","scriptscriptstyle"])){this.parseMode="math";const t=new fe("math","mathstyle");t.mathstyle=this.get().value,this.mathList.push(t)}else this.hasInfixCommand()&&!i?(i=this.get(),s=this.swapMathList([])):this.parseAtom();let o;if(i){const t=this.swapMathList(a),e=Pt.getInfo("\\"+i.value,"math",this.macros);o=e?[new fe(this.parseMode,e.type,e.value||i.value,e.parse?e.parse("\\"+i.value,[s,t]):null)]:[new fe(this.parseMode,"mop",i.value)]}else o=this.swapMathList(a);return this.style=e,o}scanGroup(){if(!this.parseToken("{"))return null;const t=new fe(this.parseMode,"group");return t.body=this.scanImplicitGroup(t=>"}"===t.type),this.parseToken("}"),t.latexOpen="{",t.latexClose="}",t}scanSmartFence(){if(this.skipWhitespace(),!this.parseLiteral("("))return null;const t=new fe(this.parseMode,"leftright");t.leftDelim="(",t.inner=!1;const e=this.swapMathList([]);let i=1;for(;!this.end()&&0!==i;)this.hasLiteral("(")&&(i+=1),this.hasLiteral(")")&&(i-=1),0!==i&&this.parseAtom();return 0===i&&this.parseLiteral(")"),t.rightDelim=0===i?")":"?",t.body=this.swapMathList(e),t}scanDelim(){this.skipWhitespace();const t=this.get();if(!t)return null;let e=".";"command"===t.type?e="\\"+t.value:"literal"===t.type&&(e=t.value);const i=Pt.getInfo(e,"math",this.macros);return i?"mopen"===i.type||"mclose"===i.type?e:/^(\?|\||<|>|\\vert|\\Vert|\\\||\\surd|\\uparrow|\\downarrow|\\Uparrow|\\Downarrow|\\updownarrow|\\Updownarrow|\\mid|\\mvert|\\mVert)$/.test(e)?e:null:null}scanLeftRight(){if(this.parseCommand("right")||this.parseCommand("mright")){const t=new fe(this.parseMode,"leftright");return t.rightDelim=this.scanDelim()||".",t}const t=this.style;let e="right";if(!this.parseCommand("left")){if(!this.parseCommand("mleft"))return null;e="mright"}const i=this.scanDelim()||".",s=this.swapMathList([]);for(;!this.end()&&!this.parseCommand(e);)this.parseAtom();this.style=t;const a=this.scanDelim(),o=new fe(this.parseMode,"leftright");return o.leftDelim=i,o.rightDelim=a,o.inner="right"===e,o.body=this.swapMathList(s),o}parseSupSub(){if("math"!==this.parseMode)return!1;let t=!1;for(;this.hasLiteral("^")||this.hasLiteral("_")||this.hasLiteral("'");){let e;if(this.hasLiteral("^")?e="superscript":this.hasLiteral("_")&&(e="subscript"),this.parseLiteral("^")||this.parseLiteral("_")){const i=this.scanArg();if(i){const s=this.lastMathAtom();s[e]=s[e]||[],s[e]=s[e].concat(i),t=!0}}else if(this.parseLiteral("'")){const e=this.lastMathAtom();e.superscript=e.superscript||[],e.superscript.push(new fe(e.parseMode,"mord","′")),t=!0}}return t}parseLimits(){if(this.parseCommand("limits")){const t=this.lastMathAtom();return t.limits="limits",t.explicitLimits=!0,!0}if(this.parseCommand("nolimits")){const t=this.lastMathAtom();return t.limits="nolimits",t.explicitLimits=!0,!0}return!1}scanOptionalArg(t){if(t=t&&"auto"!==t?t:this.parseMode,this.skipWhitespace(),!this.parseLiteral("["))return null;const e=this.parseMode;this.parseMode=t;const i=this.swapMathList();let s;for(;!this.end()&&!this.parseLiteral("]");)if("string"===t)s=this.scanString();else if("number"===t)s=this.scanNumber();else if("dimen"===t)s=this.scanDimen();else if("skip"===t)s=this.scanSkip();else if("colspec"===t)s=this.scanColspec();else if("color"===t)s=this.scanColor()||"#ffffff";else if("bbox"===t){const t=this.scanString().toLowerCase().trim().split(/,(?![^(]*\)(?:(?:[^(]*\)){2})*[^"]*$)/);for(const e of t){const t=ue.stringToColor(e);if(t)(s=s||{}).backgroundcolor=t;else{const t=e.match(/^\s*([0-9.]+)\s*([a-z][a-z])/);if(t)(s=s||{}).padding=M.toEm(t[1],t[2]);else{const t=e.match(/^\s*border\s*:\s*(.*)/);t&&((s=s||{}).border=t[1])}}}}else this.mathList=this.mathList.concat(this.scanImplicitGroup(t=>"literal"===t.type&&"]"===t.value));this.parseMode=e;const a=this.swapMathList(i);return s||a}scanArg(t){let e;if(t=t&&"auto"!==t?t:this.parseMode,this.parseFiller(),!this.parseToken("{")){if("delim"===t)return this.scanDelim()||".";if(/^(math|text)$/.test(t)){const e=this.parseMode;this.parseMode=t;const i=this.scanToken();return this.parseMode=e,Array.isArray(i)?i:i?[i]:null}}if(this.hasToken("#")){const t=this.get();return this.skipUntilToken("}"),"?"===t.value?this.placeholder():this.args?void 0===this.args[t.value]&&void 0!==this.args["?"]?this.placeholder():this.args[t.value]||null:null}const i=this.parseMode;this.parseMode=t;const s=this.swapMathList([]);if("string"===t)e=this.scanString(),this.skipUntilToken("}");else if("number"===t)e=this.scanNumber(),this.skipUntilToken("}");else if("dimen"===t)e=this.scanDimen(),this.skipUntilToken("}");else if("skip"===t)e=this.scanSkip(),this.skipUntilToken("}");else if("colspec"===t)e=this.scanColspec(),this.skipUntilToken("}");else if("color"===t)e=this.scanColor()||"#ffffff",this.skipUntilToken("}");else if("delim"===t)e=this.scanDelim()||".",this.skipUntilToken("}");else do{this.mathList=this.mathList.concat(this.scanImplicitGroup())}while(!this.parseToken("}")&&!this.end());this.parseMode=i;const a=this.swapMathList(s);return e||a}scanToken(){const t=this.get();if(!t)return null;let e=null;if("space"===t.type)"text"===this.parseMode&&(e=new fe("text",""," ",this.style));else if("placeholder"===t.type)(e=new fe(this.parseMode,"placeholder",t.value)).captureSelection=!0;else if("command"===t.type){if("placeholder"===t.value)(e=new fe(this.parseMode,"placeholder",this.scanArg("string"),this.style)).captureSelection=!0;else if("char"===t.value){let t=Math.floor(this.scanNumber(!0));(!isFinite(t)||t<0||t>1114111)&&(t=10067),(e=new fe(this.parseMode,"math"===this.parseMode?"mord":"",String.fromCodePoint(t))).latex='{\\char"'+("000000"+t.toString(16)).toUpperCase().substr(-6)+"}"}else if("hskip"===t.value||"kern"===t.value){const i=this.scanSkip();isFinite(i)&&((e=new fe(this.parseMode,"spacing",null,this.style)).width=i),e.latex="\\"+t.value}else if(!(e=this.scanMacro(t.value))){const i=Pt.getInfo("\\"+t.value,this.parseMode,this.macros),s=[];let a="",o="";if(i&&i.params)for(const t of i.params)if(t.optional){const e=this.scanOptionalArg(t.type);s.push(e)}else if(t.type.endsWith("*"))o=t.type.slice(0,-1);else{const e=this.scanArg(t.type);if(e&&1===e.length&&"placeholder"===e[0].type&&t.placeholder&&(e[0].value=t.placeholder),e)s.push(e);else if(t.placeholder){const e=new fe(this.parseMode,"placeholder",t.placeholder);e.captureSelection=!0,s.push([e])}else s.push(this.placeholder());"math"!==t.type&&"string"==typeof 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s=this.path[this.path.length-1].relation;i||(i=s);const a=this.parent();if(!a&&"body"!==i)return!1;const o=i.startsWith("cell");if(!o&&!a[i]||o&&!a.array)return!1;const n=i!==s;this.path[this.path.length-1].relation=i;const r=this.siblings().length;this.path[this.path.length-1].relation=s;const l=this.extent;"end"===e?e=r-t-1:"start"===e&&(e=-t),this.setExtent(e);const c=this.extent!==l;this.setExtent(l),t<0&&(t=r+t),t=Math.max(0,Math.min(t,r-1));const h=this.path[this.path.length-1].offset;return(n||h!==t||c)&&(n&&this.adjustPlaceholder(),this.selectionWillChange(),this.path[this.path.length-1].relation=i,this.path[this.path.length-1].offset=t,this.setExtent(e),this.selectionDidChange()),!0},Fe.prototype.next=function(t){t=t||{};const e={body:"numer",numer:"denom",denom:"index",index:"overscript",overscript:"underscript",underscript:"subscript",subscript:"superscript"};if(this.anchorOffset()===this.siblings().length-1){this.adjustPlaceholder();let i=e[this.relation()];const s=this.parent();for(;i&&!s[i];)i=e[i];if(i)return void this.setSelection(0,0,i);if(this.parent().array){const t=Pe(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e<t;){if(qe(this.parent().array,e)&&this.setSelection(0,0,"cell"+e))return void this.selectionDidChange();e+=1}}if(1===this.path.length)(this.suppressChangeNotifications||!this.config.onMoveOutOf||this.config.onMoveOutOf(this,"forward"))&&(this.path[0].offset=0);else{const e=!t.iterateAll&&this.parent().skipBoundary;this.path.pop(),e&&this.next(t)}return void this.selectionDidChange()}this.setSelection(this.anchorOffset()+1);const i=this.anchor();if(i&&!i.captureSelection){let s;if(i.array){let t=0;s="";const e=Pe(i.array);for(;!s&&t<e;)qe(i.array,t)&&(s="cell"+t.toString()),t+=1;return this.path.push({relation:s,offset:0}),void this.setSelection(0,0,s)}for(s="body";s;){if(Array.isArray(i[s]))return this.path.push({relation:s,offset:0}),this.insertFirstAtom(),void(!t.iterateAll&&i.skipBoundary&&this.next(t));s=e[s]}}},Fe.prototype.previous=function(t){const e={numer:"body",denom:"numer",index:"denom",overscript:"index",underscript:"overscript",subscript:"underscript",superscript:"subscript"};if(!(t=t||{}).iterateAll&&1===this.anchorOffset()&&this.parent()&&this.parent().skipBoundary&&this.setSelection(0),this.anchorOffset()<1){let t=e[this.relation()];for(;t&&!this.setSelection(-1,0,t);)t=e[t];const i=this.parent()?this.parent().type:"none";if("body"!==t||"msubsup"!==i&&"mop"!==i||(t=null),t)return;if(this.adjustPlaceholder(),this.selectionWillChange(),this.relation().startsWith("cell")){let t=parseInt(this.relation().match(/cell([0-9]*)$/)[1])-1;for(;t>=0;){if(qe(this.parent().array,t)&&this.setSelection(-1,0,"cell"+t))return void this.selectionDidChange();t-=1}}return 1===this.path.length?(this.suppressChangeNotifications||!this.config.onMoveOutOf||this.config.onMoveOutOf.bind(this)(-1))&&(this.path[0].offset=this.root.body.length-1):(this.path.pop(),this.setSelection(this.anchorOffset()-1)),void this.selectionDidChange()}const i=this.anchor();if(!i.captureSelection){let t;if(i.array){t="";const e=Pe(i.array);let s=e-1;for(;!t&&s<e;)qe(i.array,s)&&(t="cell"+s.toString()),s-=1;return s+=1,this.path.push({relation:t,offset:qe(i.array,s).length-1}),void this.setSelection(-1,0,t)}for(t="superscript";t;){if(Array.isArray(i[t]))return this.path.push({relation:t,offset:i[t].length-1}),void this.setSelection(-1,0,t);t=e[t]}}this.setSelection(this.anchorOffset()-1),!t.iterateAll&&this.sibling(0)&&this.sibling(0).skipBoundary&&this.previous(t)},Fe.prototype.move=function(t,e){const i=(e=e||{extend:!1}).extend||!1;if(this.removeSuggestion(),i)this.extend(t,e);else{const e=ze(this);if(t>0)for(this.collapseForward()&&t--;t>0;)this.next(),t--;else if(t<0)for(this.collapseBackward()&&t++;0!==t;)this.previous(),t++;this._announce("move",e)}},Fe.prototype.up=function(t){const e=(t=t||{extend:!1}).extend||!1;this.collapseBackward();const i=this.relation();if("denom"===i)e?(this.selectionWillChange(),this.path.pop(),this.path[this.path.length-1].offset-=1,this.setExtent(1),this.selectionDidChange()):this.setSelection(this.anchorOffset(),0,"numer"),this._announce("moveUp");else if(this.parent().array){let e=Ee(this.parent().array,i);(e=Be(this.parent().array,e,-1))&&qe(e)?(this.path[this.path.length-1].relation="cell"+De(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},Fe.prototype.down=function(t){const e=(t=t||{extend:!1}).extend||!1;this.collapseForward();const i=this.relation();if("numer"===i)e?(this.selectionWillChange(),this.path.pop(),this.path[this.path.length-1].offset-=1,this.setExtent(1),this.selectionDidChange()):this.setSelection(this.anchorOffset(),0,"denom"),this._announce("moveDown");else if(this.parent().array){let e=Ee(this.parent().array,i);(e=Be(this.parent().array,e,1))&&qe(e)?(this.path[this.path.length-1].relation="cell"+De(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},Fe.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,i=0;const s=ze(this),a=e+(i=this.extent+t);if(a<0&&0!==i){if(this.path.length>1)return this.selectionWillChange(),this.path.pop(),this.setExtent(-1),this.selectionDidChange(),void this._announce("move",s);e=this.path[this.path.length-1].offset,i=this.extent}else if(a>=this.siblings().length){if(this.path.length>1)return this.selectionWillChange(),this.path.pop(),this.path[this.path.length-1].offset-=1,this.setExtent(1),this.selectionDidChange(),void this._announce("move",s);this.isCollapsed()&&(e-=1),i-=1}this.setSelection(e,i),this._announce("move",s)},Fe.prototype.skip=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const s=ze(this),a=this.siblings(),o=this.focusOffset();let n=o+t;if(i&&(n=Math.min(Math.max(0,n),a.length-1)),n<0||n>=a.length)this.move(t,e);else{if(a[n]&&"text"===a[n].mode){if((n=this.wordBoundaryOffset(n,t))<0&&!i)return void this.setSelection(0);if(n>a.length)return this.setSelection(a.length-1),void this.move(t,e)}else{const e=a[n]?a[n].type:"";if("mopen"===e&&t>0||"mclose"===e&&t<0){let i="mopen"===e?1:-1;for(n+=t>0?1:-1;n>=0&&n<a.length&&0!==i;)"mopen"===a[n].type?i+=1:"mclose"===a[n].type&&(i-=1),n+=t;0!==i&&(n=o+t),t>0&&(n-=1)}else{for(;a[n]&&"math"===a[n].mode&&a[n].type===e;)n+=t;n-=t>0?1:0}}if(i){const t=this.anchorOffset();this.setSelection(t,n-t)}else this.setSelection(n);this._announce("move",s)}},Fe.prototype.jump=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const s=this.siblings();let a=this.focusOffset();t>0&&(a=Math.min(a+1,s.length-1));const o=t<0?0:s.length-1;i?this.extend(o-a):this.move(o-a)},Fe.prototype.jumpToMathFieldBoundary=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const s=ze(this),a=[{relation:"body",offset:this.path[0].offset}];let o;i?t<0?a[0].offset>0&&(o=-a[0].offset):a[0].offset<this.siblings().length-1&&(o=this.siblings().length-1-a[0].offset):(a[0].offset=t<0?0:this.root.body.length-1,o=0),this.setPath(a,o),this._announce("move",s)},Fe.prototype.leap=function(t,e){t=(t=t||1)<0?-1:1,e=e||!0;const i=this.suppressChangeNotifications;this.suppressChangeNotifications=!0;const s=ze(this),a=this.extent;this.move(t),"placeholder"===this.anchor().type&&this.move(t);const o=this.filter((t,e)=>"placeholder"===e.type||t.length>1&&1===this.siblings().length,t);if(0===o.length){if(this.setPath(s,a),e)if(this.config.onTabOutOf)this.config.onTabOutOf(this.target,t>0?"forward":"backward");else if(document.activeElement){const e='a[href]:not([disabled]),\n                    button:not([disabled]),\n                    textarea:not([disabled]),\n                    input[type=text]:not([disabled]),\n                    select:not([disabled]),\n                    [contentEditable="true"],\n                    [tabindex]:not([disabled]):not([tabindex="-1"])',i=Array.prototype.filter.call(document.querySelectorAll(e),t=>(t.offsetWidth>0||t.offsetHeight>0)&&!t.contains(document.activeElement)||t===document.activeElement);let s=i.indexOf(document.activeElement)+t;s<0&&(s=i.length-1),s>=i.length&&(s=0),i[s].focus()}return!1}return this.selectionWillChange(),this.setPath(o[0]),"placeholder"===this.anchor().type&&this.setExtent(-1),this._announce("move",s),this.selectionDidChange(),this.suppressChangeNotifications=i,!0},Fe.prototype.anchorMode=function(){const t=this.isCollapsed()?this.anchor():this.sibling(1);let e;if(t){if("commandliteral"===t.type||"command"===t.type)return"command";e=t.mode}let i=1,s=this.ancestor(i);for(;!e&&s;)s&&(e=s.mode),i+=1,s=this.ancestor(i);return e},Fe.prototype.anchorStyle=function(){const t=this.isCollapsed()?this.anchor():this.sibling(1);let e;if(t&&"first"!==t.type){if("commandliteral"===t.type||"command"===t.type)return{};e={color:t.color,backgroundColor:t.backgroundColor,fontFamily:t.fontFamily,fontShape:t.fontShape,fontSeries:t.fontSeries,fontSize:t.fontSize}}let i=1,s=this.ancestor(i);for(;!e&&s;)s&&(e={color:s.color,backgroundColor:s.backgroundColor,fontFamily:s.fontFamily,fontShape:s.fontShape,fontSeries:s.fontSeries,fontSize:s.fontSize}),i+=1,s=this.ancestor(i);return e},Fe.prototype.simplifyParen=function(t){if(t&&this.config.removeExtraneousParentheses){for(let e=0;t[e];e++)if("leftright"===t[e].type&&"("===t[e].leftDelim&&Array.isArray(t[e].body)){let i=0,s=0,a=0;for(let o=0;t[e].body;o++)"genfrac"===t[e].body[o].type&&(i++,s=o),"first"!==t[e].body[o].type&&a++;0===a&&1===i&&(t[e]=t[e].body[s])}t.forEach(t=>{if("genfrac"===t.type&&(this.simplifyParen(t.numer),this.simplifyParen(t.denom),t.numer=Ke(t.numer),t.denom=Ke(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=Ke(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=Ke(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=Ke(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=Ke(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=Ke(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=Ke(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=Pe(t.array);e>=0;e--)this.simplifyParen(qe(t.array,e))})}},Fe.prototype.insert=function(t,e){if((e=e||{}).smartFence&&this._insertSmartFence(t,e.style))return;const i=this.suppressChangeNotifications;e.suppressChangeNotifications&&(this.suppressChangeNotifications=!0),this.contentWillChange();const s=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,e.insertionMode||(e.insertionMode="replaceSelection"),e.selectionMode||(e.selectionMode="placeholder"),e.format||(e.format="auto"),e.macros=e.macros||this.config.macros;const a=e.mode||this.anchorMode();let o;const n=[this.getSelectedAtoms()];void 0!==e.placeholder&&(n["?"]=e.placeholder),"replaceSelection"!==e.insertionMode||this.isCollapsed()?"replaceAll"===e.insertionMode?(this.root.body.splice(1),this.path=[{relation:"body",offset:0}],this.extent=0):"insertBefore"===e.insertionMode?this.collapseBackward():"insertAfter"===e.insertionMode&&this.collapseForward():this.delete_();const r=this.siblings(),l=this.startOffset();if(l+1<r.length&&r[l+1]&&"placeholder"===r[l+1].type?this.delete_(1):l>0&&r[l]&&"placeholder"===r[l].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=Ne(t,{...this.config,format:"ASCIIMath"}),o=be.parseTokens(x.tokenize(t),"math",null,e.macros,!1),this.simplifyParen(o);else if("text"!==a&&"auto"===e.format)if("command"===a){o=[];for(const e of t)Pt.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new de.MathAtom("command","command",e))}else""===t?o=[new de.MathAtom("command","command","\\")]:(t=Ne(t,this.config),n[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),n[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-n[0].length),Array.isArray(n[0])&&0===n[0].length&&(n[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=be.parseTokens(x.tokenize(t),a,n,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=be.parseTokens(x.tokenize(t),a,n,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=be.parseTokens(x.tokenize(t),"text",n,e.macros,!1));!function t(e,i){e&&i&&(Array.isArray(e)?e.forEach(e=>t(e,i)):"object"==typeof e&&(e.color||e.backgroundColor||e.fontFamily||e.fontShape||e.fontSeries||e.fontSize||(e.applyStyle(i),t(e.body,i),t(e.numer,i),t(e.denom,i),t(e.index,i),t(e.overscript,i),t(e.underscript,i),t(e.subscript,i),t(e.superscript,i))))}(o,e.style);const c=this.parent();if(this.config.removeExtraneousParentheses&&c&&"leftright"===c.type&&"("===c.leftDelim&&o&&1===o.length&&"genfrac"===o[0].type?(this.path.pop(),this.siblings()[this.anchorOffset()]=o[0]):Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(o)),this.insertFirstAtom(),this.suppressChangeNotifications=s,"placeholder"===e.selectionMode){let t=[];for(const e of o)t=t.concat(e.filter(t=>"placeholder"===t.type));0!==t.length&&this.leap(1,!1)?this._announce("move"):this.setSelection(this.anchorOffset()+o.length)}else"before"===e.selectionMode||("after"===e.selectionMode?this.setSelection(this.anchorOffset()+o.length):"item"===e.selectionMode&&this.setSelection(this.anchorOffset(),o.length));this.contentDidChange(),this.suppressChangeNotifications=i},Fe.prototype._insertSmartFence=function(t,e){const i=this.parent();if("leftright"===i.type&&"|"!==i.leftDelim&&/\||\\vert|\\Vert|\\mvert|\\mid/.test(t))return this.insert("\\,\\middle"+t+"\\, ",{mode:"math",format:"latex",style:e}),!0;"{"!==t&&"\\{"!==t||(t="\\lbrace"),"}"!==t&&"\\}"!==t||(t="\\rbrace"),"["!==t&&"\\["!==t||(t="\\lbrack"),"]"!==t&&"\\]"!==t||(t="\\rbrack");const s=Pt.RIGHT_DELIM[t];if(s&&("leftright"!==i.type||"|"!==i.leftDelim)){let i="";const a=this.isCollapsed()||"placeholder"===this.anchor().type;i=this.sibling(0).isFunction?"\\mleft"+t+"\\mright":"\\left"+t+"\\right",i+=a?"?":s;let o=[];return a&&(o=this.siblings().splice(this.anchorOffset()+1,this.siblings().length)),this.insert(i,{mode:"math",format:"latex",style:e}),a&&(this.sibling(0).body=o,this.move(-1)),!0}let a;for(const e in Pt.RIGHT_DELIM)Pt.RIGHT_DELIM.hasOwnProperty(e)&&t===Pt.RIGHT_DELIM[e]&&(a=e);if(a){if(i&&"leftright"===i.type&&this.endOffset()===this.siblings().length-1)return this.contentWillChange(),i.rightDelim=t,this.move(1),this.contentDidChange(),!0;const s=this.siblings();let a;for(a=this.endOffset();a>=0&&("leftright"!==s[a].type||"?"!==s[a].rightDelim);a--);if(a>=0)return this.contentWillChange(),s[a].rightDelim=t,s[a].body=s[a].body.concat(s.slice(a+1,this.endOffset()+1)),s.splice(a+1,this.endOffset()-a),this.setSelection(a),this.contentDidChange(),!0;if(i&&"leftright"===i.type&&"?"===i.rightDelim){this.contentWillChange(),i.rightDelim=t;const e=s.slice(this.endOffset()+1);return s.splice(this.endOffset()+1),this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.endOffset()+1,0].concat(e)),this.contentDidChange(),!0}const o=this.ancestor(2);return o&&"leftright"===o.type&&"?"===o.rightDelim&&this.endOffset()===s.length-1?(this.move(1),this._insertSmartFence(t,e)):(this.insert(t,{mode:"math",format:"latex",style:e}),!0)}return!1},Fe.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let i=e.start;for(;i<e.end&&!t[i].suggestion;)i++;this.setSelection(i-1)},Fe.prototype.removeSuggestion=function(){const t=this.siblings();for(let e=t.length-1;e>=0;e--)t[e].suggestion&&t.splice(e,1)},Fe.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const i=[],s=t.substr(e);for(const t of s){const e=new de.MathAtom("command","command",t);e.suggestion=!0,i.push(e)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(i))},Fe.prototype._deleteAtoms=function(t){t>0?this.siblings().splice(this.anchorOffset()+1,t):(this.siblings().splice(this.anchorOffset()+t+1,-t),this.setSelection(this.anchorOffset()+t))},Fe.prototype.delete=function(t){if(0===(t=t||0))this.delete_(0);else if(t>0)for(;t>0;)this.delete_(1),t--;else for(;t<0;)this.delete_(-1),t++},Fe.prototype.delete_=function(t){this.contentWillChange(),this.selectionWillChange();const e=this.suppressChangeNotifications;if(this.suppressChangeNotifications=!0,t=(t=t||0)<0?-1:t>0?1:t,this.removeSuggestion(),this.parent().array&&t<0&&0===this.startOffset()){const t=this.parent().array;if(function(t){const e={col:0,row:0};for(;e.row<t.length&&!qe(t,e);)e.row+=1;return qe(t,e)?"cell"+De(t,e):""}(t)===this.relation()){const e=function(t,e,i){e||(e=[";",","]);let s,a=[];for(const i of t)s?a.push(s):s=new de.MathAtom("math","mpunct",e[0],void 0),a=a.concat(Ie(i,e[1]));return a}(t);this.path.pop(),this.siblings().splice(this.anchorOffset(),1,...e),this.setSelection(this.anchorOffset()-1,e.length)}else{const e=Ee(t,this.relation());if(0===e.col){const i=Be(t,e,-1);i.col=t[i.row].length-1,this.path[this.path.length-1].relation="cell"+De(t,i);const s=t[i.row][i.col].length,a=Ie(t[e.row]);t[i.row][i.col]=t[i.row][i.col].concat(a),this.setSelection(s-1,a.length),function(t,e){t.splice(e,1)}(t,e.row)}else if(0===function(t,e){let i=0;const s={col:e,row:0};for(;s.row<t.length;){const e=qe(t,s);if(e&&e.length>0){let t=e.length;"first"===e[0].type&&(t-=1),t>0&&(i+=1)}s.row+=1}return i}(t,e.col)){!function(t,e){let i=0;for(;i<t.length;)t[i][e]&&t[i].splice(e,1),i+=1}(t,e.col),e.col-=1,this.path[this.path.length-1].relation="cell"+De(t,e);const i=t[e.row][e.col];this.setSelection(i.length-1,0)}}return this.suppressChangeNotifications=e,this.selectionDidChange(),void this.contentDidChange()}const i=this.siblings();if(this.isCollapsed()){const e=this.anchorOffset();if(t<0)if(0!==e){const t=this.sibling(0);"leftright"===t.type?(t.rightDelim="?",this.move(-1)):!t.captureSelection&&/^(group|array|genfrac|surd|leftright|overlap|overunder|box|mathstyle|sizing)$/.test(t.type)?this.move(-1):(this._announce("delete",null,i.slice(e,e+1)),i.splice(e,1),this.setSelection(e-1))}else{const t=this.relation();if("superscript"===t||"subscript"===t){const e=this.parent()[t].filter(t=>"placeholder"!==t.type&&"first"!==t.type);this.parent()[t]=null,this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),0].concat(e)),this.setSelection(this.anchorOffset()-1),this._announce("deleted: "+t)}else if("denom"===t){const t=this.parent().numer.filter(t=>"placeholder"!==t.type&&"first"!==t.type),e=this.parent().denom.filter(t=>"placeholder"!==t.type&&"first"!==t.type);this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),1].concat(e)),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),0].concat(t)),this.setSelection(this.anchorOffset()+t.length-1),this._announce("deleted: denominator")}else if("body"===t){const t=this.siblings().filter(t=>"placeholder"!==t.type);this.path.length>1&&(t.shift(),this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),1].concat(t)),this.setSelection(this.anchorOffset()-1),this._announce("deleted: root"))}else this.move(-1),this.delete(-1)}else if(t>0)if(e!==i.length-1)/^(group|array|genfrac|surd|leftright|overlap|overunder|box|mathstyle|sizing)$/.test(this.sibling(1).type)?this.move(1):(this._announce("delete",null,i.slice(e+1,e+2)),i.splice(e+1,1));else 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li={numeric:{tooltip:"keyboard.tooltip.numeric",layer:"math",label:"123",layers:["math"]},roman:{tooltip:"keyboard.tooltip.roman",layer:"lower-roman",label:"ABC",layers:["lower-roman","upper-roman","symbols"]},greek:{tooltip:"keyboard.tooltip.greek",layer:"lower-greek",label:"&alpha;&beta;&gamma;",classes:"tex-math",layers:["lower-greek","upper-greek"]},functions:{tooltip:"keyboard.tooltip.functions",layer:"functions",label:"<i>f</i>&thinsp;()",classes:"tex",layers:["functions"]},command:{tooltip:"keyboard.tooltip.command",command:"enterCommandMode",label:"<svg><use xlink:href='#svg-command' /></svg>",layers:["lower-command","upper-command","symbols-command"]},style:{tooltip:"keyboard.tooltip.style",layer:"style",label:"<b>b</b><i>i</i>𝔹"}},ci={"\\varphi ":{label:"&Phi;",insert:"\\Phi "},"\\varsigma ":{label:"&Sigma;",insert:"\\Sigma "},"\\epsilon ":{label:"&#x0190;",insert:'{\\char"0190}'},"\\rho ":{label:"&#x3A1",insert:'{\\char"3A1}'},"\\tau ":{label:"&#x3A4;",insert:'{\\char"3A4}'},"\\upsilon ":{label:"&Upsilon;",insert:"\\Upsilon "},"\\theta ":{label:"&Theta;",insert:"\\Theta "},"\\iota ":{label:"&Iota;",insert:'{\\char"399}'},"\\omicron ":{label:"&#x039F;",insert:'{\\char"39F}'},"\\pi ":{label:"&Pi;",insert:"\\Pi "},"\\alpha ":{label:"&Alpha;",insert:'{\\char"391}'},"\\sigma ":{label:"&Sigma;",insert:"\\Sigma "},"\\delta ":{label:"&Delta;",insert:"\\Delta "},"\\phi ":{label:"&#x03a6;",insert:"\\Phi "},"\\gamma ":{label:"&Gamma;",insert:"\\Gamma "},"\\eta ":{label:"&Eta;",insert:'{\\char"397}'},"\\xi ":{label:"&Xi;",insert:"\\Xi "},"\\kappa ":{label:"&Kappa;",insert:'{\\char"39A}'},"\\lambda ":{label:"&Lambda;",insert:"\\Lambda "},"\\zeta ":{label:"&Zeta;",insert:'{\\char"396}'},"\\chi ":{label:"&Chi;",insert:'{\\char"3A7}'},"\\psi ":{label:"&Psi;",insert:"\\Psi "},"\\omega ":{label:"&Omega;",insert:"\\Omega "},"\\beta ":{label:"&Beta;",insert:'{\\char"392}'},"\\nu ":{label:"&Nu;",insert:'{\\char"39D}'},"\\mu ":{label:"&Mu;",insert:'{\\char"39C}'}},hi={0:["\\emptyset","\\varnothing","\\infty",{latex:"#?_0",insert:"#@_0"},"\\circ","\\bigcirc","\\bullet"],2:["\\frac{1}{2}",{latex:"#?^2",insert:"#@^2"}],3:["\\frac{1}{3}",{latex:"#?^3",insert:"#@^3"}],".":[",",";","\\colon",{latex:":",aside:"ratio"},{latex:"\\cdotp",aside:"center dot",classes:"box"},{latex:"\\cdots",aside:"center ellipsis",classes:"box"},{latex:"\\ldotp",aside:"low dot",classes:"box"},{latex:"\\ldots",aside:"low ellipsis",classes:"box"},{latex:"\\vdots",aside:"",classes:"box"},{latex:"\\ddots",aside:"",classes:"box"},"\\odot","\\oslash","\\circledcirc"],"*":["\\cdot","\\ast","\\star","\\bigstar","\\ltimes","\\rtimes","\\rightthreetimes","\\leftthreetimes","\\intercal","\\prod",{latex:"\\prod_{n\\mathop=0}^{\\infty}",classes:"small"}],"+":["\\pm","\\mp","\\sum",{latex:"\\sum_{n\\mathop=0}^{\\infty}",classes:"small"},"\\dotplus","\\oplus"],"-":["\\pm","\\mp","\\ominus","\\vert #0  \\vert"],"/":["\\divideontimes","/","\\div"],"(":["\\left( #0\\right)","\\left[ #0\\right]","\\left\\{ #0\\right\\}","\\left\\langle #0\\right\\rangle","\\lfloor","\\llcorner","(","\\lbrack","\\lvert","\\lVert","\\lgroup","\\langle","\\lceil","\\ulcorner","\\lmoustache","\\lbrace"],")":["\\rfloor","\\lrcorner",")","\\rbrack","\\rvert","\\rVert","\\rgroup","\\rangle","\\rceil","\\urcorner","\\rmoustache","\\rbrace"],"=":["\\cong","\\asymp","\\equiv","\\differencedelta","\\varpropto","\\thickapprox","\\approxeq","\\thicksim","\\backsim","\\eqsim","\\simeq","\\Bumpeq","\\bumpeq","\\doteq","\\Doteq","\\fallingdotseq","\\risingdotseq","\\coloneq","\\eqcirc","\\circeq","\\triangleq","\\between"],"!=":["\\neq","\\ncong","","\\nsim"],"<":["\\leq","\\leqq","\\lneqq","\\ll","\\nless","\\nleq","\\precsim","\\lesssim","\\lessgtr","\\prec","\\preccurlyeq","\\lessdot","\\nprec"],">":["\\geq","\\geqq","\\gneqq","\\gg","\\ngtr","\\ngeq","\\succsim","\\gtrsim","\\gtrless","\\succ","\\succcurlyeq","\\gtrdot","\\nsucc"],set:["\\in","\\owns","\\subset","\\nsubset","\\supset","\\nsupset"],"!set":["\\notin","\\backepsilon"],subset:[],supset:[],infinity:["\\aleph_0","\\aleph_1","\\omega","\\mathfrak{m}"],"numeric-pi":["\\prod","\\theta","\\rho","\\sin","\\cos","\\tan"],ee:["\\times 10^{#?}","\\ln","\\ln_{10}","\\log"],"^":["_{#?}"],int:[{latex:"\\int_{#?}^{#?}",classes:"small"},{latex:"\\int",classes:"small"},{latex:"\\smallint",classes:"small"},{latex:"\\iint",classes:"small"},{latex:"\\iiint",classes:"small"},{latex:"\\oint",classes:"small"},{latex:"\\dfrac{\\rd}{\\rd x}",classes:"small"},{latex:"\\frac{\\partial}{\\partial x}",classes:"small"},"\\capitalDifferentialD","\\rd","\\partial"],nabla:["\\nabla\\times","\\nabla\\cdot","\\nabla^{2}"],"!":["!!","\\Gamma","\\Pi"],accents:["\\bar{#@}","\\vec{#@}","\\hat{#@}","\\check{#@}","\\dot{#@}","\\ddot{#@}","\\mathring{#@}","\\breve{#@}","\\acute{#@}","\\tilde{#@}","\\grave{#@}"],A:[{latex:"\\aleph",aside:"aleph"},{latex:"\\forall",aside:"for all"}],a:[{latex:"\\aleph",aside:"aleph"},{latex:"\\forall",aside:"for all"}],b:[{latex:"\\beth",aside:"beth"}],B:[{latex:"\\beth",aside:"beth"}],c:[{latex:"\\C",aside:"set of complex numbers"}],d:[{latex:"\\daleth",aside:"daleth"}],D:[{latex:"\\daleth",aside:"daleth"}],e:[{latex:"\\exponentialE",aside:"exponential e"},{latex:"\\exists",aside:"there is"},{latex:"\\nexists",aside:"there isn’t"}],g:[{latex:"\\gimel",aside:"gimel"}],G:[{latex:"\\gimel",aside:"gimel"}],h:[{latex:"\\hbar",aside:"h bar"},{latex:"\\hslash",aside:"h slash"}],i:[{latex:"\\imaginaryI",aside:"imaginary i"}],j:[{latex:"\\imaginaryJ",aside:"imaginary j"}],l:[{latex:"\\ell",aside:"ell"}],n:[{latex:"\\N",aside:"set of natural numbers"}],p:[{latex:"\\P",aside:"set of primes"}],q:[{latex:"\\Q",aside:"set of rational numbers"}],r:[{latex:"\\R",aside:"set of real numbers"}],z:[{latex:"\\Z",aside:"set of integers"}],"x-var":["y","z","t","r",{latex:"f(#?)",classes:"small"},{latex:"g(#?)",classes:"small"},"x^2","x^n","x_n","x_{n+1}","x_i","x_{i+1}"],"n-var":["i","j","p","k","a","u"],ii:["\\Re","\\Im","\\imaginaryJ","\\Vert #0 \\Vert"],logic:[{latex:"\\exists",aside:"there is"},{latex:"\\nexists",aside:"there isn’t"},{latex:"\\ni",aside:"such that"},{latex:"\\Colon",aside:"such that"},{latex:"\\implies",aside:"implies"},{latex:"\\impliedby",aside:"implied by"},{latex:"\\iff",aside:"if and only if"},{latex:"\\land",aside:"and"},{latex:"\\lor",aside:"or"},{latex:"\\oplus",aside:"xor"},{latex:"\\lnot",aside:"not"},{latex:"\\downarrow",aside:"nor"},{latex:"\\uparrow",aside:"nand"},{latex:"\\curlywedge",aside:"nor"},{latex:"\\bar\\curlywedge",aside:"nand"},{latex:"\\therefore",aside:"therefore"},{latex:"\\because",aside:"because"},{latex:"^\\biconditional",aside:"biconditional"},"\\leftrightarrow","\\Leftrightarrow","\\to","\\models","\\vdash","\\gets","\\dashv","\\roundimplies"],"set-operators":["\\cap","\\cup","\\setminus","\\smallsetminus","\\complement"],"set-relations":["\\in","\\notin","\\ni","\\owns","\\subset","\\supset","\\subseteq","\\supseteq","\\subsetneq","\\supsetneq","\\varsubsetneq","\\subsetneqq","\\nsubset","\\nsupset","\\nsubseteq","\\nsupseteq"],space:[{latex:'\\char"203A\\!\\char"2039',insert:"\\!",aside:"negative thin space<br>⁻³⧸₁₈ em"},{latex:'\\unicode{"203A}\\,\\unicode{"2039}',insert:"\\,",aside:"thin space<br>³⧸₁₈ em"},{latex:'\\unicode{"203A}\\:\\unicode{"2039}',insert:"\\:",aside:"medium space<br>⁴⧸₁₈ em"},{latex:'\\unicode{"203A}\\;\\unicode{"2039}',insert:"\\;",aside:"thick space<br>⁵⧸₁₈ em"},{latex:'\\unicode{"203A}\\ \\unicode{"2039}',insert:"\\ ",aside:"⅓ em"},{latex:'\\unicode{"203A}\\enspace\\unicode{"2039}',insert:"\\enspace",aside:"½ em"},{latex:'\\unicode{"203A}\\quad\\unicode{"2039}',insert:"\\quad",aside:"1 em"},{latex:'\\unicode{"203A}\\qquad\\unicode{"2039}',insert:"\\qquad",aside:"2 em"}],delete:[{label:'<span class="warning"><svg><use xlink:href="#svg-trash" /></svg></span>',command:'"deleteAll"'}],"->|":[]};let di={};const pi={math:"\n        <div class='rows'>\n            <ul>\n                <li class='keycap tex' data-alt-keys='x-var'><i>x</i></li>\n                <li class='keycap tex' data-alt-keys='n-var'><i>n</i></li>\n                <li class='separator w5'></li>\n                <row name='numpad-1'/>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-key='ee' data-alt-keys='ee'>e</li>\n                <li class='keycap tex' data-key='ii' data-alt-keys='ii'>i</li>\n                <li class='keycap tex' data-latex='\\pi' data-alt-keys='numeric-pi'></li>\n            </ul>\n            <ul>\n                <li class='keycap tex' data-key='<' data-alt-keys='<'>&lt;</li>\n                <li class='keycap tex' data-key='>' data-alt-keys='>'>&gt;</li>\n                <li class='separator w5'></li>\n                <row name='numpad-2'/>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-alt-keys='x2' data-insert='#@^{2}'><span><i>x</i>&thinsp;²</span></li>\n                <li class='keycap tex' data-alt-keys='^' data-insert='#@^{#?}'><span><i>x</i><sup>&thinsp;<small>&#x2b1a;</small></sup></span></li>\n                <li class='keycap tex' data-alt-keys='sqrt' data-insert='\\sqrt{#0}' data-latex='\\sqrt{#0}'></li>\n            </ul>\n            <ul>\n                <li class='keycap tex' data-alt-keys='(' >(</li>\n                <li class='keycap tex' data-alt-keys=')' >)</li>\n                <li class='separator w5'></li>\n                <row name='numpad-3'/>\n                <li class='separator w5'></li>\n                <li class='keycap tex small' data-alt-keys='int' data-latex='\\int_0^\\infty'><span></span></li>\n                <li class='keycap tex' data-latex='\\forall' data-alt-keys='logic' ></li>\n                <li class='action font-glyph bottom right' data-alt-keys='delete' data-command='[\"performWithFeedback\",\"deletePreviousChar\"]'>&#x232b;</li></ul>\n            </ul>\n            <ul>\n                <li class='keycap' data-alt-keys='foreground-color' data-command='[\"applyStyle\",{\"color\":\"#cc2428\"}]'><span style='border-radius: 50%;width:22px;height:22px; border: 3px solid #cc2428; box-sizing: border-box'></span></li>\n                <li class='keycap' data-alt-keys='background-color' data-command='[\"applyStyle\",{\"backgroundColor\":\"#fff590\"}]'><span style='border-radius: 50%;width:22px;height:22px; background:#fff590; box-sizing: border-box'></span></li>\n                <li class='separator w5'></li>\n                <row name='numpad-4'/>\n                <li class='separator w5'></li>\n                <arrows/>\n            </ul>\n        </div>\n    ","lower-roman":"\n        <div class='rows'>\n            <ul>\n                <row name='numpad-1' class='if-wide'/>\n                <row name='lower-1' shift-layer='upper-roman'/>\n            </ul>\n            <ul>\n                <row name='numpad-2' class='if-wide'/>\n                <row name='lower-2'  shift-layer='upper-roman''/>\n            </ul>\n            <ul>\n                <row name='numpad-3' class='if-wide'/>\n                <row name='lower-3'  shift-layer='upper-roman''/>\n            </ul>\n            <ul>\n                <row name='numpad-4' class='if-wide'/>\n                <li class='layer-switch font-glyph modifier bottom left' data-layer='symbols'>&infin;≠</li>\n                <li class='keycap' data-alt-keys=','>,</li>\n                <li class='keycap w50' data-key=' ' data-alt-keys='space'>&nbsp;</li>\n                <arrows/>\n            </ul>\n        </div>","upper-roman":"\n        <div class='rows'>\n            <ul>\n                <row name='numpad-1' class='if-wide'/>\n                <row name='upper-1'  shift-layer='lower-roman'/>\n            </ul>\n            <ul>\n                <row name='numpad-2' class='if-wide'/>\n                <row name='upper-2' shift-layer='lower-roman'/>\n            </ul>\n            <ul>\n                <row name='numpad-3' class='if-wide'/>\n                <row name='upper-3' shift-layer='lower-roman'/>\n            </ul>\n            <ul>\n                <row name='numpad-4' class='if-wide'/>\n                <li class='layer-switch font-glyph modifier bottom left' data-layer='symbols'>&infin;≠</li>\n                <li class='keycap' data-alt-keys='.'>;</li>\n                <li class='keycap w50' data-key=' '>&nbsp;</li>\n                <arrows/>\n            </ul>\n        </div>",symbols:"\n        <div class='rows'>\n            <ul>\n                <row name='numpad-1' class='if-wide'/>\n                <li class='keycap tex' data-alt-keys='(' data-insert='\\lbrace '>{</li>\n                <li class='keycap tex' data-alt-keys=')' data-insert='\\rbrace '>}</li>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-alt-keys='set' data-insert='\\in '>&#x2208;</li>\n                <li class='keycap tex' data-alt-keys='!set' data-insert='\\notin '>&#x2209;</li>\n                <li class='keycap tex' data-insert='\\Re '>&#x211c;<aside>Real</aside></li>\n                <li class='keycap tex' data-insert='\\Im '>&#x2111;<aside>Imaginary</aside></li>\n                <li class='keycap w15' data-insert='\\ulcorner#0\\urcorner '><span><sup>&#x250c;</sup><span><span style='color:#ddd'>o</span><sup>&#x2510;</sup></span><aside>ceil</aside></li>\n                <li class='keycap tex' data-alt-keys='nabla' data-insert='\\nabla '>&#x2207;<aside>nabla</aside></li>\n                <li class='keycap tex' data-alt-keys='infinity' data-insert='\\infty '>&#x221e;</li>\n\n            </ul>\n            <ul>\n                <row name='numpad-2' class='if-wide'/>\n                <li class='keycap tex' data-alt-keys='(' data-insert='\\lbrack '>[</li>\n                <li class='keycap tex' data-alt-keys=')' data-insert='\\rbrack '>]</li>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-alt-keys='subset' data-insert='\\subset '>&#x2282;</li>\n                <li class='keycap tex' data-alt-keys='supset' data-insert='\\supset '>&#x2283;</li>\n                <li class='keycap tex' data-key='!' data-alt-keys='!'>!<aside>factorial</aside></li>\n                <li class='keycap' data-insert='^{\\prime} '><span><sup><span><span style='color:#ddd'>o</span>&#x2032</sup></span><aside>prime</aside></li>\n                <li class='keycap w15' data-insert='\\llcorner#0\\lrcorner '><span><sub>&#x2514;</sub><span style='color:#ddd'>o</span><sub>&#x2518;</sub></span><aside>floor</aside></li>\n                <li class='keycap tex' data-insert='\\partial '>&#x2202;<aside>partial<br>derivative</aside></li>\n                <li class='keycap tex' data-insert='\\emptyset '>&#x2205;<aside>empty set</aside></li>\n\n            </ul>\n            <ul>\n                <row name='numpad-3' class='if-wide'/>\n                <li class='keycap tex' data-alt-keys='(' data-insert='\\langle '>&#x27e8;</li>\n                <li class='keycap tex' data-alt-keys=')' data-insert='\\rangle '>&#x27e9;</li>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-insert='\\subseteq '>&#x2286;</li>\n                <li class='keycap tex' data-insert='\\supseteq '>&#x2287;</li>\n                <li class='keycap tex' data-alt-keys='accents' data-insert='\\vec{#@}' data-latex='\\vec{#?}' data-aside='vector'></li>\n                <li class='keycap tex' data-alt-keys='accents' data-insert='\\bar{#@}' data-latex='\\bar{#?}' data-aside='bar'></li>\n                <li class='keycap tex' data-alt-keys='absnorm' data-insert='\\lvert #@ \\rvert ' data-latex='\\lvert #? \\rvert' data-aside='abs'></li>\n                <li class='keycap tex' data-insert='\\ast '>&#x2217;<aside>asterisk</aside></li>\n\n                <li class='action font-glyph bottom right w15'\n                    data-shifted='<span class=\"warning\"><svg><use xlink:href=\"#svg-trash\" /></svg></span>'\n                    data-shifted-command='\"deleteAll\"'\n                    data-alt-keys='delete' data-command='[\"performWithFeedback\",\"deletePreviousChar\"]'\n                >&#x232b;</li>\n            </ul>\n            <ul>\n                <row name='numpad-4' class='if-wide'/>\n                <li class='layer-switch font-glyph modifier bottom left' data-layer='lower-roman'>abc</li>\n                <li class='keycap tex' data-insert='\\cdot '>&#x22c5;<aside>centered dot</aside></li>\n                <li class='keycap tex' data-insert='\\colon '>:<aside>colon</aside></li>\n                <li class='keycap tex' data-insert='\\circ '>&#x2218;<aside>circle</aside></li>\n                <li class='keycap tex' data-insert='\\approx '>&#x2248;<aside>approx.</aside></li>\n                <li class='keycap tex' data-insert='\\ne '>&#x2260;</li>\n                <li class='keycap tex' data-insert='\\pm '>&#x00b1;</li>\n                <arrows/>\n            </ul>\n        </div>","lower-greek":"\n        <div class='rows'>\n            <ul><li class='keycap tex' data-insert='\\varphi '><i>&#x03c6;</i><aside>phi var.</aside></li>\n                <li class='keycap tex' data-insert='\\varsigma '><i>&#x03c2;</i><aside>sigma var.</aside></li>\n                <li class='keycap tex' data-insert='\\epsilon '><i>&#x03f5;</i></li>\n                <li class='keycap tex' data-insert='\\rho '><i>&rho;</i></li>\n                <li class='keycap tex' data-insert='\\tau '><i>&tau;</i></li>\n                <li class='keycap tex' data-insert='\\upsilon '><i>&upsilon;</i></li>\n                <li class='keycap tex' data-insert='\\theta '><i>&theta;</i></li>\n                <li class='keycap tex' data-insert='\\iota '><i>&iota;</i></li>\n                <li class='keycap tex' data-insert='\\omicron '>&omicron;</i></li>\n                <li class='keycap tex' data-insert='\\pi '><i>&pi;</i></li>\n            </ul>\n            <ul><li class='keycap tex' data-insert='\\alpha ' data-shifted='&Alpha;' data-shifted-command='[\"insert\",\"{\\\\char\\\"391}\"]'><i>&alpha;</i></li>\n                <li class='keycap tex' data-insert='\\sigma '><i>&sigma;</i></li>\n                <li class='keycap tex' data-insert='\\delta '><i>&delta;</i></li>\n                <li class='keycap tex' data-insert='\\phi '><i>&#x03d5;</i></i></li>\n                <li class='keycap tex' data-insert='\\gamma '><i>&gamma;</i></li>\n                <li class='keycap tex' data-insert='\\eta '><i>&eta;</i></li>\n                <li class='keycap tex' data-insert='\\xi '><i>&xi;</i></li>\n                <li class='keycap tex' data-insert='\\kappa '><i>&kappa;</i></li>\n                <li class='keycap tex' data-insert='\\lambda '><i>&lambda;</i></li>\n            </ul>\n            <ul><li class='shift modifier font-glyph bottom left w15 layer-switch' data-layer='upper-greek'>&#x21e7;</li>\n                <li class='keycap tex' data-insert='\\zeta '><i>&zeta;</i></li>\n                <li class='keycap tex' data-insert='\\chi '><i>&chi;</i></li>\n                <li class='keycap tex' data-insert='\\psi '><i>&psi;</i></li>\n                <li class='keycap tex' data-insert='\\omega '><i>&omega;</i></li>\n                <li class='keycap tex' data-insert='\\beta '><i>&beta;</i></li>\n                <li class='keycap tex' data-insert='\\nu '><i>&nu;</i></li>\n                <li class='keycap tex' data-insert='\\mu '><i>&mu;</i></li>\n                <li class='action font-glyph bottom right w15'\n                    data-shifted='<span class=\"warning\"><svg><use xlink:href=\"#svg-trash\" /></svg></span>'\n                    data-shifted-command='\"deleteAll\"'\n                    data-alt-keys='delete' data-command='[\"performWithFeedback\",\"deletePreviousChar\"]'\n                >&#x232b;</li>\n            </ul>\n            <ul>\n                <li class='keycap ' data-key=' '>&nbsp;</li>\n                <li class='keycap'>,</li>\n                <li class='keycap tex' data-insert='\\varepsilon '><i>&#x03b5;</i><aside>epsilon var.</aside></li>\n                <li class='keycap tex' data-insert='\\vartheta '><i>&#x03d1;</i><aside>theta var.</aside></li>\n                <li class='keycap tex' data-insert='\\varkappa '><i>&#x3f0;</i><aside>kappa var.</aside></li>\n                <li class='keycap tex' data-insert='\\varpi '><i>&#x03d6;<aside>pi var.</aside></i></li>\n                <li class='keycap tex' data-insert='\\varrho '><i>&#x03f1;</i><aside>rho var.</aside></li>\n                <arrows/>\n            </ul>\n        </div>","upper-greek":"\n        <div class='rows'>\n            <ul><li class='keycap tex' data-insert='\\Phi '>&Phi;<aside>phi</aside></li>\n                <li class='keycap tex' data-insert='\\Sigma '>&Sigma;<aside>sigma</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"0190}'>&#x0190;<aside>epsilon</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"3A1}'>&#x3A1;<aside>rho</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"3A4}'>&#x3A4;<aside>tau</aside></li>\n                <li class='keycap tex' 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if(t.subscript){let i=de.toSpeakableFragment(t.subscript,e);s+=' the product from <break time="200ms"/>'+(i=i.trim())+'<break time="200ms"/> of <break time="150ms"/>',r=!0}else s+=" the product  of ";else if("\\int"===a)if(t.superscript&&t.subscript){let a=de.toSpeakableFragment(t.superscript,e);a=a.trim();let o=de.toSpeakableFragment(t.subscript,e);s+=' the integral from <break time="200ms"/>'+i(o=o.trim())+'<break time="200ms"/> to <break time="200ms"/>'+i(a)+' <break time="200ms"/> of ',r=!0}else s+=' the integral of <break time="200ms"/> ';else if("string"==typeof t.body){s+=fs[t.body]||fs[t.latex.trim()]||" "+t.body}else t.latex&&t.latex.length>0&&("\\"===t.latex[0]?s+=" "+t.latex.substr(1):s+=" "+t.latex)}break;case"enclose":n=de.toSpeakableFragment(t.body,e),gs(t.body)?s+=" crossed out "+n+" , ":s+=" crossed out "+n+". 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i},ws.prototype.handleEvent=function(t){switch(t.type){case"focus":this._onFocus(t);break;case"blur":this._onBlur(t);break;case"touchstart":case"mousedown":case"pointerdown":this._onPointerDown(t);break;case"resize":this._resizeTimer&&window.cancelAnimationFrame(this._resizeTimer),this._resizeTimer=window.requestAnimationFrame(()=>this._onResize());break;case"cut":this._onCut(t);break;case"copy":this._onCopy(t);break;case"paste":this._onPaste(t)}},ws.prototype.revertToOriginalContent=ws.prototype.$revertToOriginalContent=function(){this.element.innerHTML=this.originalContent,this.element.mathfield=null,delete this.accessibleNode,delete this.ariaLiveText,delete this.field,xs(this.textarea,"cut",this),xs(this.textarea,"copy",this),xs(this.textarea,"paste",this),this.textarea.remove(),delete this.textarea,this.virtualKeyboardToggleDOMNode.remove(),delete 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e=this.mathlist.filter(function(t,e){return e.captureSelection?e.filter(t=>t.id===o).length>0:e.id===o});if(e&&e.length>0)if(s=ve.pathFromString(e[0]).path,0===i.bias){const e=a.getBoundingClientRect();t<e.left+e.width/2&&!a.classList.contains("ML__placeholder")&&(s[s.length-1].offset=Math.max(0,s[s.length-1].offset-1))}else i.bias<0&&(s[s.length-1].offset=Math.min(this.mathlist.siblings().length-1,Math.max(0,s[s.length-1].offset+i.bias)))}return s};let As=0;function Cs(t,e,i){const s=Object.assign({},t.config);return s.textToSpeechMarkup="",e+de.toSpeakableText(i,s)}function Ms(t,e,i,s){let a="";"plonk"===e?(t.plonkSound&&(t.plonkSound.load(),t.plonkSound.play().catch(t=>void 0)),t._resetKeystrokeBuffer()):"delete"===e?a=Cs(t,"deleted: ",s):"focus"===e||/move/.test(e)?a=(t.mathlist.isCollapsed()?"":"selected: ")+t._nextAtomSpeechText(i):"replacement"===e?a=Cs(t,"",t.mathlist.sibling(0)):"line"===e?(a=Cs(t,"",t.mathlist.root),t.accessibleNode.innerHTML='<math xmlns="http://www.w3.org/1998/Math/MathML">'+de.toMathML(t.mathlist.root,t.config)+"</math>",t.textarea.setAttribute("aria-label","after: "+a)):a=s?Cs(t,e+" ",s):e;const o=/\u00a0/.test(t.ariaLiveText.textContent)?"   ":"   ";t.ariaLiveText.textContent=a+o}ws.prototype._onPointerDown=function(t){const e=this;let i,s=!1,a=!1,o=!1;if(1!==t.buttons)return;function n(t){window.PointerEvent?(xs(e.field,"pointermove",h),xs(e.field,"pointerend pointerleave pointercancel",n),e.field.releasePointerCapture(t.pointerId)):(xs(e.field,"touchmove",h),xs(e.field,"touchend touchleave",n),xs(window,"mousemove",h),xs(window,"mouseup blur",n)),s=!1,clearInterval(c),e.element.querySelectorAll(".ML__scroller").forEach(t=>t.parentNode.removeChild(t)),t.preventDefault(),t.stopPropagation()}let r=!1,l=!1;const c=setInterval(()=>{r?e.field.scroll({top:0,left:e.field.scrollLeft-16}):l&&e.field.scroll({top:0,left:e.field.scrollLeft+16})},32);function h(t){const s=t.touches?t.touches[0].clientX:t.clientX,o=t.touches?t.touches[0].clientY:t.clientY,n="touch"===t.pointerType?20:5;if(Date.now()<m+500&&Math.abs(d-s)<n&&Math.abs(p-o)<n)return t.preventDefault(),void t.stopPropagation();const c=e.field.getBoundingClientRect();l=s>c.right,r=s<c.left;let h=i;window.PointerEvent?t.isPrimary||(h=e._pathFromPoint(t.clientX,t.clientY,{bias:0})):t.touches&&2===t.touches.length&&(h=e._pathFromPoint(t.touches[1].clientX,t.touches[1].clientY,{bias:0}));const u=e._pathFromPoint(s,o,{bias:s<=d?s===d?0:-1:1});u&&e.mathlist.setRange(h,u,{extendToWordBoundary:a})&&e._requestUpdate(),t.preventDefault(),t.stopPropagation()}const d=t.touches?t.touches[0].clientX:t.clientX,p=t.touches?t.touches[0].clientY:t.clientY,m=Date.now();Ss&&Math.abs(Ss.x-d)<5&&Math.abs(Ss.y-p)<5&&Date.now()<Ss.time+500?(As+=1,Ss.time=m):(Ss={x:d,y:p,time:m},As=1);const u=this.field.getBoundingClientRect();if(d>=u.left&&d<=u.right&&p>=u.top&&p<=u.bottom){let r=document.createElement("div");r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.left-200+"px",(r=document.createElement("div")).className="ML__scroller",this.element.appendChild(r),r.style.left=u.right+"px",this.hasFocus()||(o=!0,this.textarea.focus&&this.textarea.focus()),this._resetKeystrokeBuffer(),this.smartModeSuppressed=!1,(i=this._pathFromPoint(d,p,{bias:0}))&&(t.shiftKey?(this.mathlist.setRange(this.mathlist.path,i),(i=ve.clone(this.mathlist.path))[i.length-1].offset-=1):this.mathlist.setPath(i,0),o=!0,this.style={},3===t.detail||As>2?(n(t),3!==t.detail&&3!==As||this.mathlist.selectAll_()):s||(s=!0,window.PointerEvent?(bs(e.field,"pointermove",h),bs(e.field,"pointerend pointercancel pointerup",n),e.field.setPointerCapture(t.pointerId)):(bs(window,"blur",n),t.touches?(bs(t.target,"touchmove",h),bs(t.target,"touchend",n)):(bs(window,"mousemove",h),bs(window,"mouseup",n))),2!==t.detail&&2!==As||(a=!0,this.mathlist.selectGroup_())))}else Ss=null;o&&this._requestUpdate(),t.preventDefault()},ws.prototype._onSelectionDidChange=function(){this.mathlist.commitCommandStringBeforeInsertionPoint();let t="";this.mathlist.forEachSelected(e=>{t+=e.toLatex()}),t?(this.textarea.value=t,this.hasFocus()&&this.textarea.select&&this.textarea.select()):(this.textarea.value="",this.textarea.setAttribute("aria-label",""));{const t=this.mode;this.mode=this.mathlist.anchorMode()||this.config.defaultMode,this.mode!==t&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),"command"===t&&"command"!==this.mode&&(oi.hidePopover(this),this.mathlist.removeCommandString())}oi.updatePopoverPosition(this,{deferred:!0}),"function"==typeof this.config.onSelectionDidChange&&this.config.onSelectionDidChange(this)},ws.prototype._onContentDidChange=function(){this.undoManager.canRedo()?this.element.classList.add("can-redo"):this.element.classList.remove("can-redo"),this.undoManager.canUndo()?this.element.classList.add("can-undo"):this.element.classList.remove("can-undo"),"function"==typeof this.config.onContentDidChange&&this.config.onContentDidChange(this)},ws.prototype._nextAtomSpeechText=function(t){function e(t,e){return"body"===e.relation?{enclose:"cross out",leftright:"fence",surd:"square root",root:"math field"}[t.type]:{numer:"numerator",denom:"denominator",index:"index",body:"parent",subscript:"subscript",superscript:"superscript"}[e.relation]}const i=t?t.path:[],s=this.mathlist.path,a=s[s.length-1];let o="";for(;i.length>s.length;)o+="out of "+e(t.parent(),i[i.length-1])+"; ",i.pop();if(!this.mathlist.isCollapsed())return Cs(this,"",this.mathlist.getSelectedAtoms());const n=e(this.mathlist.parent(),a);0===a.offset&&(o+=(n?"start of "+n:"unknown")+": ");const r=this.mathlist.sibling(Math.max(1,this.mathlist.extent));return r?o+=Cs(this,"",r):0!==a.offset&&(o+=n?"end of "+n:"unknown"),o},ws.prototype._announce=function(t,e,i){"function"==typeof this.config.onAnnounce&&this.config.onAnnounce(this,t,e,i)},ws.prototype._onFocus=function(){this.blurred&&(this.blurred=!1,this.textarea.focus&&this.textarea.focus(),"onfocus"===this.config.virtualKeyboardMode&&this.showVirtualKeyboard_(),oi.updatePopoverPosition(this),this.config.onFocus&&this.config.onFocus(this),this._requestUpdate())},ws.prototype._onBlur=function(){this.blurred||(this.blurred=!0,this.ariaLiveText.textContent="","onfocus"===this.config.virtualKeyboardMode&&this.hideVirtualKeyboard_(),this.complete_({discard:!0}),this._requestUpdate(),this.config.onBlur&&this.config.onBlur(this))},ws.prototype._onResize=function(){this.element.classList.remove("ML__isNarrowWidth","ML__isWideWidth","ML__isExtendedWidth"),window.innerWidth>=1024?this.element.classList.add("ML__isExtendedWidth"):window.innerWidth>=768?this.element.classList.add("ML__isWideWidth"):this.element.classList.add("ML__isNarrowWidth"),oi.updatePopoverPosition(this)},ws.prototype.toggleKeystrokeCaption_=function(){this.keystrokeCaptionVisible=!this.keystrokeCaptionVisible,this.keystrokeCaption.innerHTML="",this.keystrokeCaptionVisible||(this.keystrokeCaption.style.visibility="hidden")},ws.prototype._showKeystroke=function(t){const e=this.keystrokeCaption;if(e&&this.keystrokeCaptionVisible){const i=this.element.getBoundingClientRect();e.style.left=i.left+"px",e.style.top=i.top-64+"px",e.innerHTML="<span>"+(Le.stringify(t)||t)+"</span>"+e.innerHTML,e.style.visibility="visible",setTimeout(function(){e.childNodes.length>0&&e.removeChild(e.childNodes[e.childNodes.length-1]),0===e.childNodes.length&&(e.style.visibility="hidden")},3e3)}},ws.prototype.perform=ws.prototype.$perform=function(t){if(!t)return!1;let e,i=!1,s=[],a=!1;if(Array.isArray(t)?(e=t[0],s=t.slice(1)):e=t,e=e.replace(/-\w/g,t=>t[1].toUpperCase()),e+="_","function"==typeof this.mathlist[e]){if(/^(delete|transpose|add)/.test(e)&&this._resetKeystrokeBuffer(),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&(this.undoManager.pop(),this.undoManager.snapshot(this.config)),this.mathlist[e](...s),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&this.undoManager.snapshot(this.config),/^(delete)/.test(e)&&"command"===this.mode){const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=Pt.suggest(t);0===e.length?oi.hidePopover(this):oi.showPopoverWithLatex(this,e[0].match,e.length>1)}a=!0,i=!0}else"function"==typeof this[e]&&(a=this[e](...s),i=!0);return this.mathlist.isCollapsed()&&!/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),i},ws.prototype.performWithFeedback_=function(t){return this.focus(),this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),"moveToNextPlaceholder"===(t=t.replace(/-\w/g,t=>t[1].toUpperCase()))||"moveToPreviousPlaceholder"===t||"complete"===t?this.returnKeypressSound?(this.returnKeypressSound.load(),this.returnKeypressSound.play().catch(t=>void 0)):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>void 0)):"deletePreviousChar"!==t&&"deleteNextChar"!==t&&"deletePreviousWord"!==t&&"deleteNextWord"!==t&&"deleteToGroupStart"!==t&&"deleteToGroupEnd"!==t&&"deleteToMathFieldStart"!==t&&"deleteToMathFieldEnd"!==t||!this.deleteKeypressSound?this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>void 0)):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>void 0)),this.perform(t)},ws.prototype.convertLastAtomsToText_=function(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0);let i=0,s=!1;for(this.mathlist.contentWillChange();!s;){const a=this.mathlist.sibling(i);(s=0===t||!a||"math"!==a.mode||!(/mord|textord|mpunct/.test(a.type)||"mop"===a.type&&/[a-zA-Z]+/.test(a.body))||a.superscript||a.subscript||e&&!e(a))||(a.applyStyle({mode:"text"}),a.latex=a.body),i-=1,t-=1}this.mathlist.contentDidChange()},ws.prototype.convertLastAtomsToMath_=function(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0),this.mathlist.contentWillChange();let i=0,s=!1;for(;!s;){const a=this.mathlist.sibling(i);(s=0===t||!a||"text"!==a.mode||" "===a.body||e&&!e(a))||a.applyStyle({mode:"math",type:"mord"}),i-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()},ws.prototype.removeIsolatedSpace_=function(){let t=0;for(;this.mathlist.sibling(t)&&"math"===this.mathlist.sibling(t).mode;)t-=1;if(this.mathlist.sibling(t)&&"text"===this.mathlist.sibling(t).mode&&" "===this.mathlist.sibling(t).body&&(!this.mathlist.sibling(t-1)||"math"===this.mathlist.sibling(t-1).mode)){this.mathlist.contentWillChange(),this.mathlist.siblings().splice(t-1,1),this.mathlist.contentDidChange();const e=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0,this.mathlist.setSelection(this.mathlist.anchorOffset()-1),this.mathlist.suppressChangeNotifications=e}},ws.prototype.getTextBeforeAnchor_=function(){let t="",e=0,i=!1;for(;!i;){const s=this.mathlist.sibling(e);(i=!(s&&("text"===s.mode&&!s.type||"math"===s.mode&&/mord|textord|mpunct/.test(s.type))))||(t=s.body+t),e-=1}return t},ws.prototype.smartMode_=function(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()<this.mathlist.siblings().length-1)return!1;if(!e||e.ctrlKey||e.metaKey)return!1;const i=Ye.eventToChar(e);if(i.length>1)return!1;if(!this.mathlist.isCollapsed())return!("text"!==this.mode||!/[\/_^]/.test(i));const s=this.getTextBeforeAnchor_()+i;if("text"===this.mode){if("Esc"===t||/[\/\\]/.test(i))return!0;if(/[\^_]/.test(i))return/(^|\s)[a-zA-Z][^_]$/.test(s)&&this.convertLastAtomsToMath_(1),!0;const e={")":"(","}":"{","]":"["}[i];if(e&&this.mathlist.parent()&&"leftright"===this.mathlist.parent().type&&this.mathlist.parent().leftDelim===e)return!0;if(/(^|[^a-zA-Z])(a|I)[ ]$/.test(s))return!1;if(/[$€£₤₺¥¤฿¢₡₧₨₹₩₱]/u.test(i))return!0;if(/(^|[^a-zA-Z'’])[a-zA-Z][ ]$/.test(s))return this.convertLastAtomsToMath_(1),!1;if(/[^0-9]\.[^0-9\s]$/.test(s)){this.convertLastAtomsToMath_(1);const t=this.mathlist.sibling(0);return t.body="⋅",t.autoFontFamily="cmr",t.latex="\\cdot",!0}if(/(^|\s)[a-zA-Z][^a-zA-Z]$/.test(s))return this.convertLastAtomsToMath_(1),!0;if(/\.[0-9]$/.test(s))return this.convertLastAtomsToMath_(1),!0;if(/[(][0-9+\-.]$/.test(s))return this.convertLastAtomsToMath_(1),!0;if(/[(][a-z][,;]$/.test(s))return this.convertLastAtomsToMath_(2),!0;if(/[0-9+\-=><*|]$/.test(i))return this.removeIsolatedSpace_(),!0}else{if("Spacebar"===t)return this.convertLastAtomsToText_(t=>/[a-z][:,;.]$/.test(t.body)),!0;if(/[a-zA-Z]{3,}$/.test(s)&&!/(dxd|abc|xyz|uvw)$/.test(s))return this.convertLastAtomsToText_(t=>/[a-zA-Z:,;.]/.test(t.body)),!0;if(/(^|\W)(if|If)$/i.test(s))return this.convertLastAtomsToText_(1),!0;if(/\?|\./.test(i))return!0}return!1},ws.prototype._onKeystroke=function(t,e){if(this._showKeystroke(t),clearTimeout(this.keystrokeBufferResetTimer),this.config.onKeystroke&&!this.config.onKeystroke(this,t,e))return e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1;let i,s,a,o=!1;if("command"!==this.mode&&(!e||!e.ctrlKey&&!e.metaKey)){const t=Ye.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!i&&a<e.length;){let t;if(this.keystrokeBufferStates[a]){const e=new Ue.EditableMathlist;e.root=de.makeRoot("math",be.parseTokens(x.tokenize(this.keystrokeBufferStates[a].latex),this.config.default,null,this.config.macros)),e.setPath(this.keystrokeBufferStates[a].selection),t=e.siblings()}else t=this.mathlist.siblings();i=Le.forString(this.mode,t,e.slice(a),this.config),a+=1}s=a-1,this.keystrokeBuffer+=t,this.keystrokeBufferStates.push(this.undoManager.save()),Le.startsWithString(e,this.config).length<=1?o=!0:this.config.inlineShortcutTimeout&&(this.keystrokeBufferResetTimer=setTimeout(()=>{this._resetKeystrokeBuffer()},this.config.inlineShortcutTimeout))}}if(this.config.smartMode){const s=this.mode;i?this.mode="math":this.smartMode_(t,e)&&(this.mode={math:"text",text:"math"}[this.mode],a=""),this.mode!==s&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode)}if(i||a||(a=Le.selectorForKeystroke(this.mode,t)),!i&&!a)return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const n=this.mathlist.parent();if("moveAfterParent"===a&&n&&"leftright"===n.type&&this.mathlist.endOffset()===this.mathlist.siblings().length-1&&this.config.smartFence&&this.mathlist._insertSmartFence(".")&&(a="",this._requestUpdate()),"math"===this.mode&&"Spacebar"===t&&!i){const t=this.mathlist.sibling(1),e=this.mathlist.sibling(-1);(t&&"text"===t.mode||e&&"text"===e.mode)&&this.mathlist.insert(" ",{mode:"text"})}if((a&&!this.perform(a)||i)&&i){if(!/^(\\{|\\}|\\[|\\]|\\@|\\#|\\$|\\%|\\^|\\_|\\backslash)$/.test(i)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(Ye.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const i=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[s],{...this.config,suppressChangeNotifications:!0}),this.mode=i}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(i,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),i.endsWith(" ")&&(this.mode="text",this.mathlist.insert(" ",{mode:"text",style:a})),this.mathlist.suppressChangeNotifications=t,this.mathlist.contentDidChange(),this.undoManager.snapshot(this.config),this._requestUpdate(),this._announce("replacement"),o&&this._resetKeystrokeBuffer()}return this.scrollIntoView(),e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1},ws.prototype._onTypedText=function(t,e){if((e=e||{}).focus&&this.focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>void 0))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),i=Ye.charToEvent(e);if(!this.$keystroke(Ye.keyboardEventToString(i),i))return}let i="",s=!1;if(this.pasteInProgress)this.pasteInProgress=!1,this.mathlist.insert(t,{smartFence:this.config.smartFence,mode:"math"});else{const e={...this.mathlist.anchorStyle(),...this.style},a=g.splitGraphemes(t);for(const t of a)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),a=Pt.suggest(e+t);s=a.length>1,0===a.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),oi.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),a[0].match!==e+t&&this.mathlist.insertSuggestion(a[0].match,-a[0].match.length+e.length+1),i=a[0].match)}else if("math"===this.mode){const i={"^":"moveToSuperscript",_:"moveToSubscript"," ":"moveAfterParent"}[t];if(i){if("moveToSuperscript"===i){if(this._superscriptDepth()>=this.config.scriptDepth[1])return void this._announce("plonk")}else if("moveToSubscript"===i&&this._subscriptDepth()>=this.config.scriptDepth[0])return void this._announce("plonk");this.perform(i)}else this.config.smartSuperscript&&"superscript"===this.mathlist.relation()&&/[0-9]/.test(t)&&0===this.mathlist.siblings().filter(t=>"first"!==t.type).length?(this.mathlist.insert(t,{mode:"math",style:e}),this.mathlist.moveAfterParent_()):this.mathlist.insert(t,{mode:"math",style:e,smartFence:this.config.smartFence})}else"text"===this.mode&&this.mathlist.insert(t,{mode:"text",style:e})}"command"!==this.mode&&this.undoManager.snapshotAndCoalesce(this.config),this._requestUpdate(),this.scrollIntoView(),oi.showPopoverWithLatex(this,i,s)},ws.prototype._hash=function(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let i=0;i<e.length;i++)t=31*t+e.charCodeAt(i),t|=0;return Math.abs(t)},ws.prototype._requestUpdate=function(){this.dirty||(this.dirty=!0,requestAnimationFrame(t=>this._render()))},ws.prototype._render=function(t){t=t||{},this.dirty=!1,window.mathlive||(window.mathlive={}),this.mathlist.anchor()||(this.mathlist.path=[{relation:"body",offset:0}]),this.mathlist.forEach(t=>{t.caret="",t.isSelected=!1});const e=this.hasFocus();this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0});const i=de.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),s=et.makeSpan(i,"ML__base");s.attributes={translate:"no","aria-hidden":"true"};const a=et.makeSpan("","ML__strut");a.setStyle("height",s.height,"em");const o=[a];if(0!==s.depth){const t=et.makeSpan("","ML__strut--bottom");t.setStyle("height",s.height+s.depth,"em"),t.setStyle("vertical-align",-s.depth,"em"),o.push(t)}o.push(s);const n=et.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e),this.accessibleNode.innerHTML="<math xmlns='http://www.w3.org/1998/Math/MathML'>"+de.toMathML(this.mathlist.root,this.config)+"</math>";const r=this._getSelectionBounds();if(r){const t=document.createElement("div");t.classList.add("ML__selection"),t.style.position="absolute",t.style.left=r.left+"px",t.style.top=r.top+"px",t.style.width=Math.ceil(r.right-r.left)+"px",t.style.height=Math.ceil(r.bottom-r.top-1)+"px",this.field.insertBefore(t,this.field.childNodes[0])}},ws.prototype._onPaste=function(){return this.pasteInProgress=!0,!0},ws.prototype._onCut=function(){return setTimeout(function(){this.clearSelection(),this._requestUpdate()}.bind(this),0),!0},ws.prototype._onCopy=function(t){this.mathlist.isCollapsed()?(t.clipboardData.setData("text/plain",this.$text("latex-expanded")),t.clipboardData.setData("application/json",this.$text("json")),t.clipboardData.setData("application/xml",this.$text("mathML"))):(t.clipboardData.setData("text/plain",this.$selectedText("latex-expanded")),t.clipboardData.setData("application/json",this.$selectedText("json")),t.clipboardData.setData("application/xml",this.$selectedText("mathML"))),t.preventDefault()},ws.prototype.formatMathlist=function(t,e){let i="";if("latex"===(e=e||"latex")||"latex-expanded"===e)i=t.toLatex("latex-expanded"===e);else if("mathML"===e)i=t.toMathML(this.config);else if("spoken"===e)i=de.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",i=de.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="ssml",i=de.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("json"===e){const e=de.toAST(t,this.config);i=JSON.stringify(e)}else"ASCIIMath"===e&&(i=function t(e,i){if(!e)return"";if(Array.isArray(e)){let s="";if(0===e.length)return"";if("first"===e[0].type&&e.shift(),"text"===e[0].mode){let a=0;for(s='"';e[a]&&"text"===e[a].mode;)s+=e[a].body,a++;s+='"'+t(e.slice(a),i)}else{let a=0;for(;e[a]&&"math"===e[a].mode;)s+=t(e[a],i),a++;s+=t(e.slice(a),i)}return s.trim()}let s="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":s=t(e.body,i);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(s+="(",s+=t(e.numer,i),s+=")/(",s+=t(e.denom,i),s+=")"):(s+="("+t(e.numer,i)+"),",s+="("+t(e.denom,i)+")"),(e.leftDelim||e.rightDelim)&&(s+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?s+="root("+t(e.index,i)+")("+t(e.body,i)+")":s+="sqrt("+t(e.body,i)+")";break;case"leftright":s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",s+=t(e.body,i),s+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:";break;case"sizeddelim":case"delim":case"accent":break;case"line":case"overlap":case"overunder":break;case"mord":"\\"===(s=bi[a]||a||("string"==typeof e.body?e.body:""))[0]&&(s+=""),(o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null)?s=String.fromCharCode(parseInt("0x"+o[1])):s.length>0&&"\\"===s.charAt(0)&&(s="string"==typeof e.body?e.body.charAt(0):e.latex);break;case"mbin":case"mrel":case"textord":case"minner":s=a&&bi[a]?bi[a]:a&&xi[a]?xi[a]:e.body;break;case"mopen":case"mclose":s+=e.body;break;case"mpunct":s=xi[a]||a;break;case"mop":"​"!==e.body&&(s="",s+="\\operatorname"===a?e.body:e.body||a,s+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":s=" "}if(e.subscript){s+="_";const a=t(e.subscript,i);a.length>1&&!/^(-)?\d+(\.\d*)?$/.test(a)?s+="("+a+")":s+=a}if(e.superscript){s+="^";const a=t(e.superscript,i);a.length>1&&!/^(-)?\d+(\.\d*)?$/.test(a)?s+="("+a+")":s+=a}return s}(t,this.config));return i},ws.prototype.text=ws.prototype.$text=function(t){return this.formatMathlist(this.mathlist.root,t)},ws.prototype.selectedText=ws.prototype.$selectedText=function(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const i=de.makeRoot("math",e);return this.formatMathlist(i,t)},ws.prototype.selectionIsCollapsed=ws.prototype.$selectionIsCollapsed=function(){return this.mathlist.isCollapsed()},ws.prototype.selectionDepth=ws.prototype.$selectionDepth=function(){return this.mathlist.path.length},ws.prototype._superscriptDepth=function(){let t=0,e=0,i=this.mathlist.ancestor(e),s=!1;for(;i;)(i.superscript||i.subscript)&&(t+=1),i.superscript?s=!0:i.subscript&&(s=!1),e+=1,i=this.mathlist.ancestor(e);return s?t:0},ws.prototype._subscriptDepth=function(){let t=0,e=0,i=this.mathlist.ancestor(e),s=!1;for(;i;)(i.superscript||i.subscript)&&(t+=1),i.superscript?s=!1:i.subscript&&(s=!0),e+=1,i=this.mathlist.ancestor(e);return s?t:0},ws.prototype.selectionAtStart=ws.prototype.$selectionAtStart=function(){return 0===this.mathlist.startOffset()},ws.prototype.selectionAtEnd=ws.prototype.$selectionAtEnd=function(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1},ws.prototype.groupIsSelected=function(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1},ws.prototype.latex=ws.prototype.$latex=function(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()},ws.prototype.el=ws.prototype.$el=function(){return this.element},ws.prototype.undo_=ws.prototype.undo=function(){return this.complete_(),this.undoManager.undo(this.config),!0},ws.prototype.redo_=ws.prototype.redo=function(){return this.complete_(),this.undoManager.redo(this.config),!0},ws.prototype.scrollIntoView_=ws.prototype.scrollIntoView=function(){this.dirty&&this._render();let t=this._getCaretPosition();const e=this.field.getBoundingClientRect();if(!t){const i=this._getSelectionBounds();i&&(t={x:i.right+e.left-this.field.scrollLeft,y:i.top+e.top-this.field.scrollTop})}if(t){const i=t.x-window.scrollX;i<e.left?this.field.scroll({top:0,left:i-e.left+this.field.scrollLeft-20,behavior:"smooth"}):i>e.right&&this.field.scroll({top:0,left:i-e.right+this.field.scrollLeft+20,behavior:"smooth"})}},ws.prototype.scrollToStart_=ws.prototype.scrollToStart=function(){this.field.scroll(0,0)},ws.prototype.scrollToEnd_=ws.prototype.scrollToEnd=function(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)},ws.prototype.enterCommandMode_=function(){this.switchMode_("command")},ws.prototype.copyToClipboard_=function(){return this.focus(),this.mathlist.isCollapsed()&&this.select(),document.execCommand("copy"),!1},ws.prototype.cutToClipboard_=function(){return this.focus(),document.execCommand("cut"),!0},ws.prototype.pasteFromClipboard_=function(){return this.focus(),document.execCommand("paste"),!0},ws.prototype.insert_=ws.prototype.insert=ws.prototype.$insert=function(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play())),"\\\\"===t)this.mathlist.addRowAfter_();else if("&"===t)this.mathlist.addColumnAfter_();else{const i=this.style;this.mathlist.insert(t,{mode:this.mode,style:this.mathlist.anchorStyle(),...e}),e.resetStyle&&(this.style=i)}return this.undoManager.snapshot(this.config),this._requestUpdate(),!0}return!1},ws.prototype.switchMode_=function(t,e,i){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),oi.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,i&&this.insert(i,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()},ws.prototype.complete_=function(t){if(t=t||{},oi.hidePopover(this),t.discard)return this.mathlist.spliceCommandStringAroundInsertionPoint(null),this.switchMode_("math"),!0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(!t.acceptSuggestion);if(e){if("\\("===e||"\\)"===e)this.mathlist.spliceCommandStringAroundInsertionPoint([]),this.mathlist.insert(e.slice(1),{mode:this.mode});else{const t="math";if(Pt.commandAllowed(t,e)){const i=be.parseTokens(x.tokenize(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(i)}else{const i=be.parseTokens(x.tokenize(e),t,null,this.config.macros);i?this.mathlist.spliceCommandStringAroundInsertionPoint(i):this.mathlist.decorateCommandStringAroundInsertionPoint(!0)}}return this.undoManager.snapshot(this.config),this._announce("replacement"),!0}return!1},ws.prototype._updateSuggestion=function(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=Pt.suggest(t);if(0===e.length)oi.hidePopover(this),this.mathlist.decorateCommandStringAroundInsertionPoint(!0);else{const i=this.suggestionIndex%e.length,s=t.length-e[i].match.length;0!==s&&this.mathlist.insertSuggestion(e[i].match,s),oi.showPopoverWithLatex(this,e[i].match,e.length>1)}this._requestUpdate()},ws.prototype.nextSuggestion_=function(){return this.suggestionIndex+=1,this._updateSuggestion(),!1},ws.prototype.previousSuggestion_=function(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=Pt.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1},ws.prototype._attachButtonHandlers=function(t,e){const i=this;let s,a,o,n,r;"object"==typeof e&&(e.default||e.pressed)?(e.default&&t.setAttribute("data-"+this.config.namespace+"command",JSON.stringify(e.default)),e.alt&&t.setAttribute("data-"+this.config.namespace+"command-alt",JSON.stringify(e.alt)),e.altshift&&t.setAttribute("data-"+this.config.namespace+"command-altshift",JSON.stringify(e.altshift)),e.shift&&t.setAttribute("data-"+this.config.namespace+"command-shift",JSON.stringify(e.shift)),e.pressed&&t.setAttribute("data-"+this.config.namespace+"command-pressed",JSON.stringify(e.pressed)),e.pressAndHoldStart&&t.setAttribute("data-"+this.config.namespace+"command-pressAndHoldStart",JSON.stringify(e.pressAndHoldStart)),e.pressAndHoldEnd&&t.setAttribute("data-"+this.config.namespace+"command-pressAndHoldEnd",JSON.stringify(e.pressAndHoldEnd))):t.setAttribute("data-"+this.config.namespace+"command",JSON.stringify(e)),bs(t,"mousedown touchstart:passive",function(e){if("mousedown"!==e.type||1===e.buttons){e.stopPropagation(),e.preventDefault(),t.classList.add("pressed"),s=Date.now(),"touchstart"===e.type&&(o=e.changedTouches[0].identifier);const n=t.getAttribute("data-"+i.config.namespace+"command-pressed");n&&i.perform(JSON.parse(n));const l=t.getAttribute("data-"+i.config.namespace+"command-pressAndHoldStart");l&&(a=t,r&&clearTimeout(r),r=window.setTimeout(function(){t.classList.contains("pressed")&&i.perform(JSON.parse(l))},300))}}),bs(t,"mouseleave touchcancel",function(){t.classList.remove("pressed")}),bs(t,"touchmove:passive",function(t){t.preventDefault();for(let e=0;e<t.changedTouches.length;e++)if(t.changedTouches[e].identifier===o){const i=document.elementFromPoint(t.changedTouches[e].clientX,t.changedTouches[e].clientY);i!==n&&n&&(n.dispatchEvent(new MouseEvent("mouseleave"),{bubbles:!0}),n=null),i&&(n=i,i.dispatchEvent(new MouseEvent("mouseenter",{bubbles:!0,buttons:1})))}}),bs(t,"mouseenter",function(e){1===e.buttons&&t.classList.add("pressed")}),bs(t,"mouseup touchend click",function(e){if(n){e.stopPropagation(),e.preventDefault();const t=n;return n=null,void t.dispatchEvent(new MouseEvent("mouseup",{bubbles:!0}))}if(t.classList.remove("pressed"),t.classList.add("active"),"click"===e.type&&0!==e.detail)return e.stopPropagation(),void e.preventDefault();window.setTimeout(function(){t.classList.remove("active")},150);let o=t.getAttribute("data-"+i.config.namespace+"command-pressAndHoldEnd");const r=Date.now();(t!==a||r<s+300)&&(o=void 0),!o&&e.altKey&&e.shiftKey&&(o=t.getAttribute("data-"+i.config.namespace+"command-altshift")),!o&&e.altKey&&(o=t.getAttribute("data-"+i.config.namespace+"command-alt")),!o&&e.shiftKey&&(o=t.getAttribute("data-"+i.config.namespace+"command-shift")),o||(o=t.getAttribute("data-"+i.config.namespace+"command")),o&&i.perform(JSON.parse(o)),e.stopPropagation(),e.preventDefault()})},ws.prototype._makeButton=function(t,e,i,s){const a=document.createElement("span");return a.innerHTML=t,e&&a.classList.add([].slice.call(e.split(" "))),i&&a.setAttribute("aria-label",i),this._attachButtonHandlers(a,s),a},ws.prototype.showAlternateKeys_=function(t,e){const i=ks("mathlive-alternate-keys-panel","ML__keyboard alternate-keys");this.virtualKeyboard.classList.contains("material")&&i.classList.add("material"),e.length>=7?i.style.width="286px":4===e.length||2===e.length?i.style.width="146px":1===e.length?i.style.width="86px":i.style.width="146px",i.style.height="auto";let s="";for(const t of e)s+="<li","string"==typeof t?s+=' data-latex="'+t.replace(/"/g,"&quot;")+'"':(t.latex&&(s+=' data-latex="'+t.latex.replace(/"/g,"&quot;")+'"'),t.content&&(s+=' data-content="'+t.content.replace(/"/g,"&quot;")+'"'),t.insert&&(s+=' data-insert="'+t.insert.replace(/"/g,"&quot;")+'"'),t.command&&(s+=" data-command='"+t.command.replace(/"/g,"&quot;")+"'"),t.aside&&(s+=' data-aside="'+t.aside.replace(/"/g,"&quot;")+'"'),t.classes&&(s+=' data-classes="'+t.classes+'"')),s+=">",s+=t.label||"",s+="</li>";s="<ul>"+s+"</ul>",i.innerHTML=s,yi.makeKeycap(this,i.getElementsByTagName("li"),"performAlternateKeys");const a=this.virtualKeyboard.querySelector('div.keyboard-layer.is-visible div.rows ul li[data-alt-keys="'+t+'"]').getBoundingClientRect();if(a){a.top-i.clientHeight<0&&(i.style.width="auto",e.length<=6?i.style.height="56px":e.length<=12?i.style.height="108px":i.style.height="205px");const t=(a.top-i.clientHeight+5).toString()+"px",s=Math.max(0,Math.min(window.innerWidth-i.offsetWidth,(a.left+a.right-i.offsetWidth)/2))+"px";i.style.transform="translate("+s+","+t+")",i.classList.add("is-visible")}return!1},ws.prototype.hideAlternateKeys_=function(){const t=document.getElementById("mathlive-alternate-keys-panel");return t&&(t.classList.remove("is-visible"),t.innerHTML="",vs(t)),!1},ws.prototype.performAlternateKeys_=function(t){return this.hideAlternateKeys_(),this.perform(t)},ws.prototype.switchKeyboardLayer_=function(t){if("off"!==this.config.virtualKeyboardMode){"lower-command"!==t&&"upper-command"!==t&&"symbols-command"!==t&&this.complete_(),this.showVirtualKeyboard_(),this.hideAlternateKeys_(),this.unshiftKeyboardLayer_();const e=this.virtualKeyboard.getElementsByClassName("keyboard-layer");let i=!1;for(let s=0;s<e.length;s++)if(e[s].id===t){i=!0;break}if(i)for(let i=0;i<e.length;i++)e[i].id===t?e[i].classList.add("is-visible"):e[i].classList.remove("is-visible");this.focus()}return!0},ws.prototype.shiftKeyboardLayer_=function(){const t=this.virtualKeyboard.querySelectorAll("div.keyboard-layer.is-visible .rows .keycap, div.keyboard-layer.is-visible .rows .action");if(t)for(let e=0;e<t.length;e++){const i=t[e];let s=i.getAttribute("data-shifted");if(s||/^[a-z]$/.test(i.innerHTML)){i.setAttribute("data-unshifted-content",i.innerHTML),s||(s=i.innerHTML.toUpperCase()),i.innerHTML=s;const t=i.getAttribute("data-"+this.config.namespace+"command");if(t){i.setAttribute("data-unshifted-command",t);const e=i.getAttribute("data-shifted-command");if(e)i.setAttribute("data-"+this.config.namespace+"command",e);else{const e=JSON.parse(t);Array.isArray(e)&&(e[1]=e[1].toUpperCase()),i.setAttribute("data-"+this.config.namespace+"command",JSON.stringify(e))}}}}return!1},ws.prototype.unshiftKeyboardLayer_=function(){const t=this.virtualKeyboard.querySelectorAll("div.keyboard-layer.is-visible .rows .keycap, div.keyboard-layer.is-visible .rows .action");if(t)for(let e=0;e<t.length;e++){const i=t[e],s=i.getAttribute("data-unshifted-content");s&&(i.innerHTML=s);const a=i.getAttribute("data-unshifted-command");a&&i.setAttribute("data-"+this.config.namespace+"command",a)}return!1},ws.prototype.insertAndUnshiftKeyboardLayer_=function(t){return this.insert_(t),this.unshiftKeyboardLayer_(),!0},ws.prototype.toggleVirtualKeyboardAlt_=function(){let t=!1;return this.virtualKeyboard&&(t=this.virtualKeyboard.classList.contains("material"),this.virtualKeyboard.remove(),delete this.virtualKeyboard,this.virtualKeyboard=null),this.showVirtualKeyboard_(t?"":"material"),!1},ws.prototype.toggleVirtualKeyboardShift_=function(){this.config.virtualKeyboardLayout={qwerty:"azerty",azerty:"qwertz",qwertz:"dvorak",dvorak:"colemak",colemak:"qwerty"}[this.config.virtualKeyboardLayout];let t=this.virtualKeyboard?this.virtualKeyboard.querySelector("div.keyboard-layer.is-visible"):null;return t=t?t.id:"",this.virtualKeyboard&&(this.virtualKeyboard.remove(),delete this.virtualKeyboard,this.virtualKeyboard=null),this.showVirtualKeyboard_(),t&&this.switchKeyboardLayer_(t),!1},ws.prototype.showVirtualKeyboard_=function(t){return this.virtualKeyboardVisible=!1,this.toggleVirtualKeyboard_(t),!1},ws.prototype.hideVirtualKeyboard_=function(){return this.virtualKeyboardVisible=!0,this.toggleVirtualKeyboard_(),!1},ws.prototype.toggleVirtualKeyboard_=function(t){if(this.virtualKeyboardVisible=!this.virtualKeyboardVisible,this.virtualKeyboardVisible){this.virtualKeyboard?this.virtualKeyboard.classList.add("is-visible"):(this.virtualKeyboard=yi.make(this,t),bs(this.virtualKeyboard,"touchstart:passive mousedown",function(){e.focus()}),document.body.appendChild(this.virtualKeyboard));const e=this;window.setTimeout(function(){e.virtualKeyboard.classList.add("is-visible")},1)}else this.virtualKeyboard&&this.virtualKeyboard.classList.remove("is-visible");return"function"==typeof this.config.onVirtualKeyboardToggle&&this.config.onVirtualKeyboardToggle(this,this.virtualKeyboardVisible,this.virtualKeyboard),!1},ws.prototype.$applyStyle=ws.prototype.applyStyle_=function(t){if(this._resetKeystrokeBuffer(),(t=function(t){const e={};return"string"==typeof t.mode&&(e.mode=t.mode.toLowerCase()),"string"==typeof t.color&&(e.color=t.color),"string"==typeof t.backgroundColor&&(e.backgroundColor=t.backgroundColor),"string"==typeof t.fontFamily&&(e.fontFamily=t.fontFamily),"string"==typeof t.series&&(e.fontSeries=t.series),"string"==typeof t.fontSeries&&(e.fontSeries=t.fontSeries.toLowerCase()),e.fontSeries&&(e.fontSeries={bold:"b",medium:"m",normal:"mn"}[e.fontSeries]||e.fontSeries),"string"==typeof t.shape&&(e.fontShape=t.shape),"string"==typeof t.fontShape&&(e.fontShape=t.fontShape.toLowerCase()),e.fontShape&&(e.fontShape={italic:"it",up:"n",upright:"n",normal:"n"}[e.fontShape]||e.fontShape),"string"==typeof t.size?e.fontSize=t.size:"number"==typeof t.size&&(e.fontSize="size"+Math.min(0,Math.max(10,t.size))),"string"==typeof t.fontSize&&(e.fontSize=t.fontSize.toLowerCase()),e.fontSize&&(e.fontSize={tiny:"size1",scriptsize:"size2",footnotesize:"size3",small:"size4",normal:"size5",normalsize:"size5",large:"size6",Large:"size7",LARGE:"size8",huge:"size9",Huge:"size10"}[e.fontSize]||e.fontSize),e}(t)).mode){if(this.mathlist.isCollapsed())this.switchMode_(t.mode);else{const t=this.mode,e="math"===(this.mathlist.anchorMode()||this.config.default)?"text":"math";let i=this.$selectedText("ASCIIMath");if("math"===e&&/^"[^"]+"$/.test(i)&&(i=i.slice(1,-1)),this.insert(i,{mode:e,selectionMode:"item",format:"text"===e?"text":"ASCIIMath"}),this.mode=e,this.groupIsSelected()){const t=this.mathlist.parent();!t||"group"!==t.type&&"root"!==t.type||(t.mode=e)}this.mode!==t&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode)}delete t.mode}return this.mathlist.isCollapsed()?(this.style.fontSeries&&t.fontSeries===this.style.fontSeries&&(t.fontSeries="auto"),t.fontShape&&t.fontShape===this.style.fontShape&&(t.fontShape="auto"),t.color&&t.color===this.style.color&&(t.color="none"),t.backgroundColor&&t.backgroundColor===this.style.backgroundColor&&(t.backgroundColor="none"),t.fontSize&&t.fontSize===this.style.fontSize&&(t.fontSize="auto"),this.style={...this.style,...t}):(this.mathlist._applyStyle(t),this.undoManager.snapshot(this.config)),!0},ws.prototype.hasFocus=ws.prototype.$hasFocus=function(){return document.hasFocus()&&document.activeElement===this.textarea},ws.prototype.focus=ws.prototype.$focus=function(){this.hasFocus()||(this.textarea.focus&&this.textarea.focus(),this._announce("line"))},ws.prototype.blur=ws.prototype.$blur=function(){this.hasFocus()&&this.textarea.blur&&this.textarea.blur()},ws.prototype.select=ws.prototype.$select=function(){this.mathlist.selectAll_()},ws.prototype.clearSelection=ws.prototype.$clearSelection=function(){this.mathlist.delete_()},ws.prototype.keystroke=ws.prototype.$keystroke=function(t,e){return this._onKeystroke(t,e)},ws.prototype.typedText=ws.prototype.$typedText=function(t){this._onTypedText(t)},ws.prototype.typedText_=function(t,e){return this._onTypedText(t,e)},ws.prototype.setConfig=ws.prototype.$setConfig=function(t){if(this.config||(this.config={smartFence:!0,smartSuperscript:!0,scriptDepth:[1/0,1/0],removeExtraneousParentheses:!0,overrideDefaultInlineShortcuts:!1,virtualKeyboard:"",virtualKeyboardLayout:"qwerty",namespace:""}),this.config={...this.config,...t},!Array.isArray(this.config.scriptDepth)){const t=parseInt(this.config.scriptDepth);this.config.scriptDepth=[t,t]}if(void 0===this.config.removeExtraneousParentheses&&(this.config.removeExtraneousParentheses=!0),this.config.onAnnounce=t.onAnnounce||Ms,this.config.macros=Object.assign({},Pt.MACROS,this.config.macros),!/^[a-z]*[-]?$/.test(this.config.namespace))throw Error("options.namespace must be a string of lowercase characters only");/-$/.test(this.config.namespace)||(this.config.namespace+="-"),ri.locale=this.config.locale||ri.locale,ri.merge(this.config.strings),this.config.virtualKeyboardLayout=t.virtualKeyboardLayout||{fr:"azerty",be:"azerty",al:"qwertz",ba:"qwertz",cz:"qwertz",de:"qwertz",hu:"qwertz",sk:"qwertz",ch:"qwertz"}[ri.locale.substring(0,2)]||"qwerty",this.keypressSound=void 0,this.spacebarKeypressSound=void 0,this.returnKeypressSound=void 0,this.deleteKeypressSound=void 0,this.config.keypressSound&&("string"==typeof this.config.keypressSound?(this.keypressSound=new Audio,this.keypressSound.preload="none",this.keypressSound.src=this.config.keypressSound,this.keypressSound.volume=.5,this.spacebarKeypressSound=this.keypressSound,this.returnKeypressSound=this.keypressSound,this.deleteKeypressSound=this.keypressSound):(this.keypressSound=new Audio,this.keypressSound.preload="none",this.keypressSound.src=this.config.keypressSound.default,this.keypressSound.volume=.5,this.spacebarKeypressSound=this.keypressSound,this.returnKeypressSound=this.keypressSound,this.deleteKeypressSound=this.keypressSound,this.config.keypressSound.spacebar&&(this.spacebarKeypressSound=new Audio,this.spacebarKeypressSound.preload="none",this.spacebarKeypressSound.src=this.config.keypressSound.spacebar,this.spacebarKeypressSound.volume=.5),this.config.keypressSound.return&&(this.returnKeypressSound=new Audio,this.returnKeypressSound.preload="none",this.returnKeypressSound.src=this.config.keypressSound.return,this.returnKeypressSound.volume=.5),this.config.keypressSound.delete&&(this.deleteKeypressSound=new Audio,this.deleteKeypressSound.preload="none",this.deleteKeypressSound.src=this.config.keypressSound.delete,this.deleteKeypressSound.volume=.5))),this.config.plonkSound&&(this.plonkSound=new Audio,this.plonkSound.preload="none",this.plonkSound.src=this.config.plonkSound,this.plonkSound.volume=.5)},ws.prototype.speak_=function(t,e){e=e||{withHighlighting:!1};const i=function(t,e){let i=null;switch(e){case"all":i=t.mathlist.root;break;case"selection":t.mathlist.isCollapsed()||(i=t.mathlist.getSelectedAtoms());break;case"left":{const e=t.mathlist.siblings(),s=t.mathlist.startOffset();if(s>=1){i=[];for(let t=1;t<=s;t++)i.push(e[t])}break}case"right":{const e=t.mathlist.siblings(),s=t.mathlist.endOffset()+1;if(s<=e.length-1){i=[];for(let t=s;t<=e.length-1;t++)i.push(e[t])}break}case"start":case"end":break;case"group":i=t.mathlist.siblings();break;case"parent":{const e=t.mathlist.parent();e&&"root"!==e.type&&(i=t.mathlist.parent());break}}return i}(this,t);if(null===i)return this.config.handleSpeak(function(t){let e="";switch(t){case"all":break;case"selection":e="no selection";break;case"left":e="at start";break;case"right":e="at end";break;case"group":break;case"parent":e="no parent"}return e}(t)),!1;const s=this.config;e.withHighlighting|"amazon"===s.speechEngine&&(s.textToSpeechMarkup=window.sre&&"sre"===s.textToSpeechRules?"ssml_step":"ssml");const a=de.toSpeakableText(i,s);return e.withHighlighting?(window.mathlive.readAloudMathField=this,this._render({forHighlighting:!0}),this.config.handleReadAloud&&this.config.handleReadAloud(this.field,a,this.config)):this.config.handleSpeak&&this.config.handleSpeak(a,s),!1};var _s={MathField:ws};function Ts(t,e,i){let s=i,a=0;const o=t.length;for(;s<e.length;){const i=e[s];if(a<=0&&e.slice(s,s+o)===t)return s;"\\"===i?s++:"{"===i?a++:"}"===i&&a--,s++}return-1}function Ls(t,e,i,s){const a=[];for(let o=0;o<t.length;o++)if("text"===t[o].type){const n=t[o].data;let r,l=!0,c=0;-1!==(r=n.indexOf(e))&&((c=r)>0&&a.push({type:"text",data:n.slice(0,c)}),l=!1);let h=!1;for(;!h;){if(l){if(-1===(r=n.indexOf(e,c))){h=!0;break}c!==r&&a.push({type:"text",data:n.slice(c,r)}),c=r}else{if(-1===(r=Ts(i,n,c+e.length))){h=!0;break}a.push({type:"math",data:n.slice(c+e.length,r),rawData:n.slice(c,r+i.length),mathstyle:s}),c=r+i.length}l=!l}c<n.length&&a.push({type:"text",data:n.slice(c)})}else a.push(t[o]);return a}function Fs(t,e){let i=[{type:"text",data:t}];for(let t=0;t<e.inline.length;t++){const s=e.inline[t];i=Ls(i,s[0],s[1],"textstyle")}for(let t=0;t<e.display.length;t++){const s=e.display[t];i=Ls(i,s[0],s[1],"displaystyle")}return i}function zs(t,e,i,s){const a=function(t,e,i,s){let a=document.createElement("span");a.setAttribute("aria-hidden","true"),e.preserveOriginalContent&&(a.setAttribute("data-"+e.namespace+"original-content",t),i&&a.setAttribute("data-"+e.namespace+"original-mathstyle",i));try{a.innerHTML=e.renderToMarkup(t,i||"displaystyle","html",e.macros)}catch(e){if(!s)return null;a=document.createTextNode(t)}return a}(t,i,e,s);if(a&&/\b(mathml|speakable-text)\b/i.test(i.renderAccessibleContent)){const e=document.createDocumentFragment();if(/\bmathml\b/i.test(i.renderAccessibleContent)&&i.renderToMathML&&e.appendChild(function(t,e){const i=document.createElement("span");try{i.innerHTML="<math xmlns='http://www.w3.org/1998/Math/MathML'>"+e.renderToMathML(t,e)+"</math>"}catch(e){i.textContent=t}return i.className="sr-only",i}(t,i)),/\bspeakable-text\b/i.test(i.renderAccessibleContent)&&i.renderToSpeakableText){const s=document.createElement("span");s.innerHTML=i.renderToSpeakableText(t,i),s.className="sr-only",e.appendChild(s)}return e.appendChild(a),e}return a}function Ds(t,e){let i=null;if(e.TeX.processEnvironments&&/^\s*\\begin/.test(t))(i=document.createDocumentFragment()).appendChild(zs(t,void 0,e,!0));else{const s=Fs(t,e.TeX.delimiters);if(1===s.length&&"text"===s[0].type)return null;i=document.createDocumentFragment();for(let t=0;t<s.length;t++)"text"===s[t].type?i.appendChild(document.createTextNode(s[t].data)):i.appendChild(zs(s[t].data,s[t].mathstyle,e,!0))}return i}const Es={namespace:"",skipTags:["noscript","style","textarea","pre","code","annotation","annotation-xml"],processScriptType:"math/tex",ignoreClass:"tex2jax_ignore",processClass:"tex2jax_process",preserveOriginalContent:!0,renderAccessibleContent:"mathml",TeX:{disabled:!1,processEnvironments:!0,delimiters:{inline:[["\\(","\\)"]],display:[["$$","$$"],["\\[","\\]"]]}}};var qs={renderMathInElement:function(t,e){try{if((e=Object.assign({},Es,e)).ignoreClassPattern=new RegExp(e.ignoreClass),e.processClassPattern=new RegExp(e.processClass),e.processScriptTypePattern=new RegExp(e.processScriptType),e.macros=Pt.MACROS,e.namespace){if(!/^[a-z]+[-]?$/.test(e.namespace))throw Error("options.namespace must be a string of lowercase characters only");/-$/.test(e.namespace)||(e.namespace+="-")}!function t(e,i){const s=e.getAttribute("data-"+i.namespace+"original-content");if(s){const t=zs(s,e.getAttribute("data-"+i.namespace+"mathstyle"),i,!1);null!=t&&(e.textContent="",e.appendChild(t))}else{if(1===e.childNodes.length&&3===e.childNodes[0].nodeType){const t=e.childNodes[0].textContent;if(i.TeX.processEnvironments&&/^\s*\\begin/.test(t))return e.textContent="",void e.appendChild(zs(t,void 0,i,!0));const s=Fs(t,i.TeX.delimiters);if(1===s.length&&"math"===s[0].type)return e.textContent="",void e.appendChild(zs(s[0].data,s[0].mathstyle,i,!0));if(1===s.length&&"text"===s[0].type)return}for(let s=0;s<e.childNodes.length;s++){const a=e.childNodes[s];if(3===a.nodeType){const t=Ds(a.textContent,i);t&&(s+=t.childNodes.length-1,e.replaceChild(t,a))}else if(1===a.nodeType){const e=a.nodeName.toLowerCase();if("script"===e&&i.processScriptTypePattern.test(a.type)){let t="displaystyle";for(const e of a.type.split(";")){const i=e.split("=");"mode"===i[0].toLowerCase()&&(t="display"===i[1].toLoweCase()?"displaystyle":"textstyle")}const e=zs(a.textContent,t,i,!0);a.parentNode.replaceChild(e,a)}else(i.processClassPattern.test(a.className)||!i.skipTags.includes(e)&&!i.ignoreClassPattern.test(a.className))&&t(a,i)}}}}(t,e)}catch(t){Error}}};function Ps(t,e,i,s){e=e||"displaystyle";const a=x.tokenize(t),o=be.parseTokens(a,"math",null,s);if("mathlist"===i)return o;let n=de.decompose({mathstyle:e},o);if(n=et.coalesce(n),"span"===i)return n;const r=et.makeSpan(n,"ML__base"),l=et.makeSpan("","ML__strut");l.setStyle("height",r.height,"em");const c=[l];if(0!==r.depth){const t=et.makeSpan("","ML__strut--bottom");t.setStyle("height",r.height+r.depth,"em"),t.setStyle("vertical-align",-r.depth,"em"),c.push(t)}return c.push(r),et.makeSpan(c,"ML__mathlive").toMarkup()}function Is(t,e){if(!de.toMathML)return"";(e=e||{}).macros=e.macros||{},Object.assign(e.macros,Pt.MACROS);const i=be.parseTokens(x.tokenize(t),"math",null,e.macros);return de.toMathML(i,e)}function Bs(t,e){if(!de.toSpeakableText)return"";(e=e||{}).macros=e.macros||{},Object.assign(e.macros,Pt.MACROS);const i=be.parseTokens(x.tokenize(t),"math",null,e.macros);return de.toSpeakableText(i,e)}function Os(t,e){if(!e&&window&&window.mathlive&&(e=window.mathlive.config),(e=e||{}).speechEngine&&"local"!==e.speechEngine)if("amazon"===e.speechEngine){if(window&&window.AWS){const i=new window.AWS.Polly({apiVersion:"2016-06-10"}),s={OutputFormat:"mp3",VoiceId:e.speechEngineVoice||"Joanna",Text:t,TextType:"ssml"};i.synthesizeSpeech(s,function(t,e){if(t);else if(e&&e.AudioStream){const t=new Uint8Array(e.AudioStream),i=new Blob([t.buffer],{type:"audio/mpeg"}),s=URL.createObjectURL(i);new Audio(s).play().catch(t=>void 0)}})}}else e.speechEngine;else{const e=new SpeechSynthesisUtterance(t);window&&window.speechSynthesis.speak(e)}}function Rs(t,e,i){if(!window)return;if(!i&&window.mathlive&&(i=window.mathlive.config),"amazon"!==(i=i||{}).speechEngine)return void(i.handleSpeak&&i.handleSpeak(e));if(!window.AWS)return;const s=new window.AWS.Polly({apiVersion:"2016-06-10"}),a={OutputFormat:"json",VoiceId:i.speechEngineVoice||"Joanna",Text:e,TextType:"ssml",SpeechMarkTypes:["ssml"]};window.mathlive=window.mathlive||{},window.mathlive.readAloudElement=t;const o=i.onReadAloudStatus||window.mathlive.onReadAloudStatus;s.synthesizeSpeech(a,function(t,e){if(t);else if(e&&e.AudioStream){const t=new TextDecoder("utf-8").decode(new Uint8Array(e.AudioStream));window.mathlive.readAloudMarks=t.split("\n").map(t=>t?JSON.parse(t):{}),window.mathlive.readAloudTokens=[];for(const t of window.mathlive.readAloudMarks)t.value&&window.mathlive.readAloudTokens.push(t.value);window.mathlive.readAloudCurrentMark="",a.OutputFormat="mp3",a.SpeechMarkTypes=[],s.synthesizeSpeech(a,function(t,e){if(t);else if(e&&e.AudioStream){const t=new Uint8Array(e.AudioStream),i=new Blob([t.buffer],{type:"audio/mpeg"}),s=URL.createObjectURL(i);window.mathlive.readAloudAudio?window.mathlive.readAloudAudio.pause():(window.mathlive.readAloudAudio=new Audio,window.mathlive.readAloudAudio.addEventListener("ended",()=>{o&&o(window.mathlive.readAloudMathField,"ended"),window.mathlive.readAloudMathField?(window.mathlive.readAloudMathField._render(),window.mathlive.readAloudElement=null,window.mathlive.readAloudMathField=null,window.mathlive.readAloudTokens=[],window.mathlive.readAloudMarks=[],window.mathlive.readAloudCurrentMark=""):function t(e){e.classList.remove("highlight"),e.children&&Array.from(e.children).forEach(e=>{t(e)})}(window.mathlive.readAloudElement)}),window.mathlive.readAloudAudio.addEventListener("timeupdate",()=>{let t="";const e=1e3*window.mathlive.readAloudAudio.currentTime+100;for(const i of window.mathlive.readAloudMarks)i.time<e&&(t=i.value);window.mathlive.readAloudCurrentMark!==t&&(window.mathlive.readAloudCurrentToken=t,t&&t===window.mathlive.readAloudFinalToken?window.mathlive.readAloudAudio.pause():(window.mathlive.readAloudCurrentMark=t,function t(e,i){i&&e.dataset.atomId!==i?(e.classList.remove("highlight"),e.children&&e.children.length>0&&Array.from(e.children).forEach(e=>{t(e,i)})):(e.classList.add("highlight"),e.children&&e.children.length>0&&Array.from(e.children).forEach(e=>{t(e)}))}(window.mathlive.readAloudElement,window.mathlive.readAloudCurrentMark)))})),window.mathlive.readAloudAudio.src=s,o&&o(window.mathlive.readAloudMathField,"playing"),window.mathlive.readAloudAudio.play()}})}})}function Ks(t){let e=t;if("string"==typeof t&&!(e=document.getElementById(t)))throw Error(`The element with ID "${t}" could not be found.`);return e}function Ns(t,e){qs&&((e=e||{}).renderToMarkup=e.renderToMarkup||Ps,e.renderToMathML=e.renderToMathML||Is,e.renderToSpeakableText=e.renderToSpeakableText||Bs,e.macros=e.macros||Pt.MACROS,qs.renderMathInElement(Ks(t),e))}function $s(t){if(t.namespace){if(!/^[a-z]+[-]?$/.test(t.namespace))throw Error("options.namespace must be a string of lowercase characters only");/-$/.test(t.namespace)||(t.namespace+="-")}}return{latexToMarkup:Ps,latexToMathML:Is,latexToSpeakableText:Bs,latexToAST:function(t,e){if(!de.toAST)return{};(e=e||{}).macros=e.macros||{},Object.assign(e.macros,Pt.MACROS);const i=be.parseTokens(x.tokenize(t),"math",null,e.macros);return de.toAST(i,e)},makeMathField:function(t,e){if(!_s)throw Error("The MathField module is not loaded.");return(e=e||{}).handleSpeak=e.handleSpeak||Os,e.handleReadAloud=e.handleReadAloud||Rs,new _s.MathField(Ks(t),e)},renderMathInDocument:function(t){Ns(document.body,t)},renderMathInElement:Ns,revertToOriginalContent:function(t,e){(t=(t=Ks(t)).children[1])instanceof _s.MathField?t.revertToOriginalContent():($s(e=e||{}),t.innerHTML=t.getAttribute("data-"+(e.namespace||"")+"original-content"))},getOriginalContent:function(t,e){return(t=(t=Ks(t)).children[1])instanceof _s.MathField?t.originalContent:($s(e=e||{}),t.getAttribute("data-"+(e.namespace||"")+"original-content"))},readAloud:Rs,readAloudStatus:function(){return window?(window.mathlive=window.mathlive||{},window.mathlive.readAloudAudio?window.mathlive.readAloudAudio.paused?"paused":window.mathlive.readAloudAudio.ended?"ready":"playing":"ready"):"unavailable"},pauseReadAloud:function(){window&&(window.mathlive=window.mathlive||{},window.mathlive.readAloudAudio&&(window.mathlive.onReadAloudStatus&&window.mathlive.onReadAloudStatus(window.mathlive.readAloudMathField,"paused"),window.mathlive.readAloudAudio.pause()))},resumeReadAloud:function(){window&&(window.mathlive=window.mathlive||{},window.mathlive.readAloudAudio&&(window.mathlive.onReadAloudStatus&&window.mathlive.onReadAloudStatus(window.mathlive.readAloudMathField,"playing"),window.mathlive.readAloudAudio.play()))},playReadAloud:function(t,e){if(window&&(window.mathlive=window.mathlive||{},window.mathlive.readAloudAudio)){let i=0;if(window.mathlive.readAloudFinalToken=null,t){window.mathlive.readAloudMarks=window.mathlive.readAloudMarks||[];for(const e of window.mathlive.readAloudMarks)e.value===t&&(i=e.time/1e3);let s=window.mathlive.readAloudTokens.indexOf(t);s>=0&&(s+=e)<window.mathlive.readAloudTokens.length&&(window.mathlive.readAloudFinalToken=s)}window.mathlive.readAloudAudio.currentTime=i,window.mathlive.onReadAloudStatus&&window.mathlive.onReadAloudStatus(window.mathlive.readAloudMathField,"playing"),window.mathlive.readAloudAudio.play()}}}},"object"==typeof exports&&"undefined"!=typeof module?module.exports=factory():"function"==typeof define&&define.amd?define(factory):(global=global||self).MathLive=factory();
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _lexer = _interopRequireDefault(require("./core/lexer.js"));
+
+var _mathAtom = _interopRequireDefault(require("./core/mathAtom.js"));
+
+var _parser = _interopRequireDefault(require("./core/parser.js"));
+
+var _span = _interopRequireDefault(require("./core/span.js"));
+
+var _definitions = _interopRequireDefault(require("./core/definitions.js"));
+
+var _editorMathfield = _interopRequireDefault(require("./editor/editor-mathfield.js"));
+
+var _autoRender = _interopRequireDefault(require("./addons/auto-render.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ *
+ * This modules exports the MathLive entry points.
+ *
+ * @module mathlive
+ * @example
+ * // To invoke the functions in this module, import the MathLive module. 
+ * 
+ * import MathLive from 'dist/mathlive.mjs';
+ * 
+ * const markup = MathLive.latexToMarkup('e^{i\\pi}+1=0');
+ * 
+ */
+
+/**
+ * Convert a LaTeX string to a string of HTML markup.
+ *
+ * @param {string} text A string of valid LaTeX. It does not have to start
+ * with a mode token such as `$$` or `\(`.
+ *
+ * @param {string} mathstyle If `'displaystyle'` the "display" mode of TeX
+ * is used to typeset the formula, which is most appropriate for formulas that are
+ * displayed in a standalone block. If `'textstyle'` is used, the "text" mode
+ * of TeX is used, which is most appropriate when displaying math "inline"
+ * with other text (on the same line).
+ *
+ * @param {string} [format='html'] For debugging purposes, this function
+ * can also return a text representation of internal data structures
+ * used to construct the markup. Valid values include `'mathlist'` and `'span'`
+ *
+ * @return {string}
+ * @function module:mathlive#latexToMarkup
+ */
+function toMarkup(text, mathstyle, format, macros) {
+  mathstyle = mathstyle || 'displaystyle';
+  console.assert(/displaystyle|textstyle|scriptstyle|scriptscriptstyle/.test(mathstyle), "Invalid style:", mathstyle); //
+  // 1. Tokenize the text
+  //
+
+  var tokens = _lexer.default.tokenize(text); //
+  // 2. Parse each token in the formula
+  //    Turn the list of tokens in the formula into
+  //    a tree of high-level MathAtom, e.g. 'genfrac'.
+  //
+
+
+  var mathlist = _parser.default.parseTokens(tokens, 'math', null, macros);
+
+  if (format === 'mathlist') return mathlist; //
+  // 3. Transform the math atoms into elementary spans
+  //    for example from genfrac to vlist.
+  //
+
+  var spans = _mathAtom.default.decompose({
+    mathstyle: mathstyle
+  }, mathlist); //
+  // 4. Simplify by coalescing adjacent nodes
+  //    for example, from <span>1</span><span>2</span>
+  //    to <span>12</span>
+  //
+
+
+  spans = _span.default.coalesce(spans);
+  if (format === 'span') return spans; //
+  // 5. Wrap the expression with struts
+  //
+
+  var base = _span.default.makeSpan(spans, 'ML__base');
+
+  var topStrut = _span.default.makeSpan('', 'ML__strut');
+
+  topStrut.setStyle('height', base.height, 'em');
+  var struts = [topStrut];
+
+  if (base.depth !== 0) {
+    var bottomStrut = _span.default.makeSpan('', 'ML__strut--bottom');
+
+    bottomStrut.setStyle('height', base.height + base.depth, 'em');
+    bottomStrut.setStyle('vertical-align', -base.depth, 'em');
+    struts.push(bottomStrut);
+  }
+
+  struts.push(base);
+
+  var wrapper = _span.default.makeSpan(struts, 'ML__mathlive'); //
+  // 6. Generate markup
+  //
+
+
+  return wrapper.toMarkup();
+}
+/**
+ * Convert a DOM element into an editable math field.
+ * 
+ * After the DOM element has been created, the value `element.mathfield` will 
+ * return a reference to the mathfield object. This value is also returned 
+ * by `makeMathField`
+ * 
+ * @param {Element|string} element A DOM element, for example as obtained 
+ * by `document.getElementById()`, or the ID of a DOM element as a string.
+ * 
+ * @param {Object<string, any>} [config={}] See {@tutorial CONFIG} for details.
+ *
+ *
+ * @return {MathField}
+ * 
+ * Given the HTML markup:
+ * ```html
+ * <span id='equation'>$f(x)=sin(x)$</span>
+ * ```
+ * The following code will turn the span into an editable mathfield.
+ * ```
+ * import MathLive from 'dist/mathlive.mjs';
+ * MathLive.makeMathField('equation');
+ * ```
+ * 
+ * @function module:mathlive#makeMathField
+ */
+
+
+function makeMathField(element, config) {
+  if (!_editorMathfield.default) {
+    throw Error('The MathField module is not loaded.');
+  }
+
+  config = config || {};
+  config.handleSpeak = config.handleSpeak || speak;
+  config.handleReadAloud = config.handleReadAloud || readAloud;
+  return new _editorMathfield.default.MathField(getElement(element), config);
+}
+/**
+ * Convert a LaTeX string to a string of MathML markup.
+ *
+ * @param {string} latex A string of valid LaTeX. It does not have to start
+ * with a mode token such as a `$$` or `\(`.
+ * @param {object} options
+ * @param {boolean} [options.generateID=false] - If true, add an `extid` attribute
+ * to the MathML nodes with a value matching the `atomID`.
+ * @return {string}
+ * @function module:mathlive#latexToMathML
+ */
+
+
+function toMathML(latex, options) {
+  if (!_mathAtom.default.toMathML) {
+    console.warn('The MathML module is not loaded.');
+    return '';
+  }
+
+  options = options || {};
+  options.macros = options.macros || {};
+  Object.assign(options.macros, _definitions.default.MACROS);
+
+  var mathlist = _parser.default.parseTokens(_lexer.default.tokenize(latex), 'math', null, options.macros);
+
+  return _mathAtom.default.toMathML(mathlist, options);
+}
+/**
+ * Convert a LaTeX string to an Abstract Syntax Tree
+ *
+ * **See:** {@tutorial MASTON}
+ *
+ * @param {string} latex A string of valid LaTeX. It does not have to start
+ * with a mode token such as a `$$` or `\(`.
+ *
+ * @return {object} The Abstract Syntax Tree as a JavaScript object.
+ * @function module:mathlive#latexToAST
+ */
+
+
+function latexToAST(latex, options) {
+  if (!_mathAtom.default.toAST) {
+    console.warn('The AST module is not loaded.');
+    return {};
+  }
+
+  options = options || {};
+  options.macros = options.macros || {};
+  Object.assign(options.macros, _definitions.default.MACROS);
+
+  var mathlist = _parser.default.parseTokens(_lexer.default.tokenize(latex), 'math', null, options.macros);
+
+  return _mathAtom.default.toAST(mathlist, options);
+}
+/**
+ * Convert a LaTeX string to a textual representation ready to be spoken
+ *
+ * @param {string} latex A string of valid LaTeX. It does not have to start
+ * with a mode token such as a `$$` or `\(`.
+ * 
+ * @param {Object.<string, any>} options -
+ * 
+ * @param {string} [options.textToSpeechRules='mathlive'] Specify which
+ * set of text to speech rules to use. 
+ * 
+ * A value of `mathlive` indicates that
+ * the simple rules built into MathLive should be used. A value of `sre`
+ * indicates that the Speech Rule Engine from Volker Sorge should be used.
+ * Note that SRE is not included or loaded by MathLive and for this option to
+ * work SRE should be loaded separately.
+ * 
+ * @param {string} [options.textToSpeechMarkup=''] The markup syntax to use 
+ * for the output of conversion to spoken text. 
+ * 
+ * Possible values are `ssml` for 
+ * the SSML markup or `mac` for the MacOS markup (e.g. `[[ltr]]`)
+ *
+ * @param {Object.<string, any>} [options.textToSpeechRulesOptions={}] A set of 
+ * key/value pairs that can be used to configure the speech rule engine. 
+ * 
+ * Which options are available depends on the speech rule engine in use. There 
+ * are no options available with MathLive's built-in engine. The options for 
+ * the SRE engine are documented [here]{@link:https://github.com/zorkow/speech-rule-engine}
+ * @return {string} The spoken representation of the input LaTeX.
+ * @example
+ * console.log(MathLive.latexToSpeakableText('\\frac{1}{2}'));
+ * // ➡︎'half'
+ * @function module:mathlive#latexToSpeakableText
+ */
+
+
+function latexToSpeakableText(latex, options) {
+  if (!_mathAtom.default.toSpeakableText) {
+    console.warn('The outputSpokenText module is not loaded.');
+    return "";
+  }
+
+  options = options || {};
+  options.macros = options.macros || {};
+  Object.assign(options.macros, _definitions.default.MACROS);
+
+  var mathlist = _parser.default.parseTokens(_lexer.default.tokenize(latex), 'math', null, options.macros);
+
+  return _mathAtom.default.toSpeakableText(mathlist, options);
+}
+
+function removeHighlight(node) {
+  node.classList.remove('highlight');
+
+  if (node.children) {
+    Array.from(node.children).forEach(function (x) {
+      removeHighlight(x);
+    });
+  }
+}
+/**
+ * Highlight the span corresponding to the specified atomID
+ * This is used for TTS with synchronized highlighting (read aloud)
+ *
+ * @param {string} atomID
+ *
+ */
+
+
+function highlightAtomID(node, atomID) {
+  if (!atomID || node.dataset.atomId === atomID) {
+    node.classList.add('highlight');
+
+    if (node.children && node.children.length > 0) {
+      Array.from(node.children).forEach(function (x) {
+        highlightAtomID(x);
+      });
+    }
+  } else {
+    node.classList.remove('highlight');
+
+    if (node.children && node.children.length > 0) {
+      Array.from(node.children).forEach(function (x) {
+        highlightAtomID(x, atomID);
+      });
+    }
+  }
+}
+
+function speak(text, config) {
+  if (!config && window && window.mathlive) {
+    config = window.mathlive.config;
+  }
+
+  config = config || {};
+
+  if (!config.speechEngine || config.speechEngine === 'local') {
+    // On ChromeOS: chrome.accessibilityFeatures.spokenFeedback
+    // See also https://developer.chrome.com/apps/tts
+    var utterance = new SpeechSynthesisUtterance(text);
+
+    if (window) {
+      window.speechSynthesis.speak(utterance);
+    } else {
+      console.log('Speak: ', text);
+    }
+  } else if (config.speechEngine === 'amazon') {
+    if (!window || !window.AWS) {
+      console.warn('AWS SDK not loaded. See https://www.npmjs.com/package/aws-sdk');
+    } else {
+      var polly = new window.AWS.Polly({
+        apiVersion: '2016-06-10'
+      });
+      var params = {
+        OutputFormat: 'mp3',
+        VoiceId: config.speechEngineVoice || 'Joanna',
+        // SampleRate: '16000',
+        Text: text,
+        TextType: 'ssml' // SpeechMarkTypes: ['ssml]'
+
+      };
+      polly.synthesizeSpeech(params, function (err, data) {
+        if (err) {
+          console.warn('polly.synthesizeSpeech() error:', err, err.stack);
+        } else {
+          if (data && data.AudioStream) {
+            var uInt8Array = new Uint8Array(data.AudioStream);
+            var blob = new Blob([uInt8Array.buffer], {
+              type: 'audio/mpeg'
+            });
+            var url = URL.createObjectURL(blob);
+            var audioElement = new Audio(url);
+            audioElement.play().catch(function (err) {
+              return console.log(err);
+            });
+          } else {
+            console.log('polly.synthesizeSpeech():' + data);
+          }
+        }
+      }); // Can call AWS.Request() on the result of synthesizeSpeech()
+    }
+  } else if (config.speechEngine === 'google') {
+    console.warn('The Google speech engine is not supported yet. Please come again.'); // @todo: implement support for Google Text-to-Speech API,
+    // using config.speechEngineToken, config.speechEngineVoice and
+    // config.speechEngineAudioConfig
+    // curl -H "Authorization: Bearer "$(gcloud auth application-default print-access-token) \
+    //   -H "Content-Type: application/json; charset=utf-8" \
+    //   --data "{
+    //     'input':{
+    //       'text':'Android is a mobile operating system developed by Google,
+    //          based on the Linux kernel and designed primarily for
+    //          touchscreen mobile devices such as smartphones and tablets.'
+    //     },
+    //     'voice':{
+    //       'languageCode':'en-gb',
+    //       'name':'en-GB-Standard-A',
+    //       'ssmlGender':'FEMALE'
+    //     },
+    //     'audioConfig':{
+    //       'audioEncoding':'MP3'
+    //     }
+    //   }" "https://texttospeech.googleapis.com/v1beta1/text:synthesize" > synthesize-text.txt
+  }
+}
+/**
+ * "Read Aloud" is an asynchronous operation that reads the 
+ * reading with synchronized highlighting
+ * 
+ * @param {DOMElement} element - The DOM element to highlight
+ * @param {string} text - The text to speak
+ * @param {object} config
+ * @private
+ * @function module:mathlive#readAloud
+ */
+
+
+function readAloud(element, text, config) {
+  if (!window) {
+    return;
+  }
+
+  if (!config && window.mathlive) {
+    config = window.mathlive.config;
+  }
+
+  config = config || {};
+
+  if (config.speechEngine !== 'amazon') {
+    console.warn('Use Amazon TTS Engine for synchronized highlighting');
+    if (config.handleSpeak) config.handleSpeak(text);
+    return;
+  }
+
+  if (!window.AWS) {
+    console.warn('AWS SDK not loaded. See https://www.npmjs.com/package/aws-sdk');
+    return;
+  }
+
+  var polly = new window.AWS.Polly({
+    apiVersion: '2016-06-10'
+  });
+  var params = {
+    OutputFormat: 'json',
+    VoiceId: config.speechEngineVoice || 'Joanna',
+    Text: text,
+    TextType: 'ssml',
+    SpeechMarkTypes: ['ssml']
+  };
+  window.mathlive = window.mathlive || {};
+  window.mathlive.readAloudElement = element;
+  var status = config.onReadAloudStatus || window.mathlive.onReadAloudStatus; // Request the mark points
+
+  polly.synthesizeSpeech(params, function (err, data) {
+    if (err) {
+      console.warn('polly.synthesizeSpeech() error:', err, err.stack);
+    } else {
+      if (data && data.AudioStream) {
+        var response = new TextDecoder('utf-8').decode(new Uint8Array(data.AudioStream));
+        window.mathlive.readAloudMarks = response.split('\n').map(function (x) {
+          return x ? JSON.parse(x) : {};
+        });
+        window.mathlive.readAloudTokens = [];
+        var _iteratorNormalCompletion = true;
+        var _didIteratorError = false;
+        var _iteratorError = undefined;
+
+        try {
+          for (var _iterator = window.mathlive.readAloudMarks[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+            var mark = _step.value;
+
+            if (mark.value) {
+              window.mathlive.readAloudTokens.push(mark.value);
+            }
+          }
+        } catch (err) {
+          _didIteratorError = true;
+          _iteratorError = err;
+        } finally {
+          try {
+            if (!_iteratorNormalCompletion && _iterator.return != null) {
+              _iterator.return();
+            }
+          } finally {
+            if (_didIteratorError) {
+              throw _iteratorError;
+            }
+          }
+        }
+
+        window.mathlive.readAloudCurrentMark = ''; // Request the audio
+
+        params.OutputFormat = 'mp3';
+        params.SpeechMarkTypes = [];
+        polly.synthesizeSpeech(params, function (err, data) {
+          if (err) {
+            console.warn('polly.synthesizeSpeech(', text, ') error:', err, err.stack);
+          } else {
+            if (data && data.AudioStream) {
+              var uInt8Array = new Uint8Array(data.AudioStream);
+              var blob = new Blob([uInt8Array.buffer], {
+                type: 'audio/mpeg'
+              });
+              var url = URL.createObjectURL(blob);
+
+              if (!window.mathlive.readAloudAudio) {
+                window.mathlive.readAloudAudio = new Audio();
+                window.mathlive.readAloudAudio.addEventListener('ended', function () {
+                  if (status) status(window.mathlive.readAloudMathField, 'ended');
+
+                  if (window.mathlive.readAloudMathField) {
+                    window.mathlive.readAloudMathField._render();
+
+                    window.mathlive.readAloudElement = null;
+                    window.mathlive.readAloudMathField = null;
+                    window.mathlive.readAloudTokens = [];
+                    window.mathlive.readAloudMarks = [];
+                    window.mathlive.readAloudCurrentMark = '';
+                  } else {
+                    removeHighlight(window.mathlive.readAloudElement);
+                  }
+                });
+                window.mathlive.readAloudAudio.addEventListener('timeupdate', function () {
+                  var value = ''; // The target, the atom we're looking for, is the one matching the current audio
+                  // plus 100 ms. By anticipating it a little bit, it feels more natural, otherwise it
+                  // feels like the highlighting is trailing the audio.
+
+                  var target = window.mathlive.readAloudAudio.currentTime * 1000 + 100; // Find the smallest element which is bigger than the target time
+
+                  var _iteratorNormalCompletion2 = true;
+                  var _didIteratorError2 = false;
+                  var _iteratorError2 = undefined;
+
+                  try {
+                    for (var _iterator2 = window.mathlive.readAloudMarks[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
+                      var mark = _step2.value;
+
+                      if (mark.time < target) {
+                        value = mark.value;
+                      }
+                    }
+                  } catch (err) {
+                    _didIteratorError2 = true;
+                    _iteratorError2 = err;
+                  } finally {
+                    try {
+                      if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
+                        _iterator2.return();
+                      }
+                    } finally {
+                      if (_didIteratorError2) {
+                        throw _iteratorError2;
+                      }
+                    }
+                  }
+
+                  if (window.mathlive.readAloudCurrentMark !== value) {
+                    window.mathlive.readAloudCurrentToken = value;
+
+                    if (value && value === window.mathlive.readAloudFinalToken) {
+                      window.mathlive.readAloudAudio.pause();
+                    } else {
+                      window.mathlive.readAloudCurrentMark = value;
+                      highlightAtomID(window.mathlive.readAloudElement, window.mathlive.readAloudCurrentMark);
+                    }
+                  }
+                });
+              } else {
+                window.mathlive.readAloudAudio.pause();
+              }
+
+              window.mathlive.readAloudAudio.src = url;
+
+              if (status) {
+                status(window.mathlive.readAloudMathField, 'playing');
+              }
+
+              window.mathlive.readAloudAudio.play();
+            } else {// console.log('polly.synthesizeSpeech():' + data);
+            }
+          }
+        });
+      } else {
+        console.log('polly.synthesizeSpeech():' + data);
+      }
+    }
+  });
+}
+/**
+ * Return the status of a Read Aloud operation (reading with synchronized
+ * highlighting). 
+ * 
+ * Possible values include:
+ * - `ready`
+ * - `playing`
+ * - `paused`
+ * - `unavailable`
+ * 
+ * **See** {@linkcode module:editor-mathfield#speakAllWithSynchronizedHighlighting speakAllWithSynchronizedHighlighting}
+ * @return {string}
+ * @function module:mathlive#readAloudStatus
+ */
+
+
+function readAloudStatus() {
+  if (!window) return 'unavailable';
+  window.mathlive = window.mathlive || {};
+  if (!window.mathlive.readAloudAudio) return 'ready';
+  if (window.mathlive.readAloudAudio.paused) return 'paused';
+  if (!window.mathlive.readAloudAudio.ended) return 'playing';
+  return 'ready';
+}
+/**
+ * If a Read Aloud operation is in progress, stop it.
+ * 
+ * **See** {@linkcode module:editor/mathfield#speakAllWithSynchronizedHighlighting speakAllWithSynchronizedHighlighting}
+ * @function module:mathlive#pauseReadAloud
+ */
+
+
+function pauseReadAloud() {
+  if (!window) return;
+  window.mathlive = window.mathlive || {};
+
+  if (window.mathlive.readAloudAudio) {
+    if (window.mathlive.onReadAloudStatus) {
+      window.mathlive.onReadAloudStatus(window.mathlive.readAloudMathField, 'paused');
+    }
+
+    window.mathlive.readAloudAudio.pause();
+  }
+}
+/**
+ * If a Read Aloud operation is paused, resume it
+ * 
+ * **See** {@linkcode module:editor-mathfield#speakAllWithSynchronizedHighlighting speakAllWithSynchronizedHighlighting}
+ * @function module:mathlive#resumeReadAloud
+ */
+
+
+function resumeReadAloud() {
+  if (!window) return;
+  window.mathlive = window.mathlive || {};
+
+  if (window.mathlive.readAloudAudio) {
+    if (window.mathlive.onReadAloudStatus) {
+      window.mathlive.onReadAloudStatus(window.mathlive.readAloudMathField, 'playing');
+    }
+
+    window.mathlive.readAloudAudio.play();
+  }
+}
+/**
+ * If a Read Aloud operation is in progress, read from a specified token
+ * 
+ * **See** {@linkcode module:editor-mathfield#speakAllWithSynchronizedHighlighting speakAllWithSynchronizedHighlighting}
+ *
+ * @param {string} token
+ * @param {number} [count]
+ * @function module:mathlive#playReadAloud
+ */
+
+
+function playReadAloud(token, count) {
+  if (!window) return;
+  window.mathlive = window.mathlive || {};
+
+  if (window.mathlive.readAloudAudio) {
+    var timeIndex = 0;
+    window.mathlive.readAloudFinalToken = null;
+
+    if (token) {
+      window.mathlive.readAloudMarks = window.mathlive.readAloudMarks || [];
+      var _iteratorNormalCompletion3 = true;
+      var _didIteratorError3 = false;
+      var _iteratorError3 = undefined;
+
+      try {
+        for (var _iterator3 = window.mathlive.readAloudMarks[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
+          var mark = _step3.value;
+
+          if (mark.value === token) {
+            timeIndex = mark.time / 1000;
+          }
+        }
+      } catch (err) {
+        _didIteratorError3 = true;
+        _iteratorError3 = err;
+      } finally {
+        try {
+          if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
+            _iterator3.return();
+          }
+        } finally {
+          if (_didIteratorError3) {
+            throw _iteratorError3;
+          }
+        }
+      }
+
+      var tokenIndex = window.mathlive.readAloudTokens.indexOf(token);
+
+      if (tokenIndex >= 0) {
+        tokenIndex += count;
+
+        if (tokenIndex < window.mathlive.readAloudTokens.length) {
+          window.mathlive.readAloudFinalToken = tokenIndex;
+        }
+      }
+    }
+
+    window.mathlive.readAloudAudio.currentTime = timeIndex;
+
+    if (window.mathlive.onReadAloudStatus) {
+      window.mathlive.onReadAloudStatus(window.mathlive.readAloudMathField, 'playing');
+    }
+
+    window.mathlive.readAloudAudio.play();
+  }
+}
+/**
+ * Transform all the elements in the document body that contain LaTeX code
+ * into typeset math.
+ * 
+ * **Note:** This is a very expensive call, as it needs to parse the entire 
+ * DOM tree to determine which elements need to be processed. In most cases 
+ * this should only be called once per document, once the DOM has been loaded.
+ * To render a specific element, use {@linkcode module:mathlive#renderMathInElement renderMathInElement()}
+ *
+ * **See:** {@tutorial USAGE_GUIDE}
+ *
+ * @param {object} [options={}] See {@linkcode module:mathlive#renderMathInElement renderMathInElement()}
+ * for details
+ * @example
+ * import MathLive from 'dist/mathlive.mjs';
+ * document.addEventListener("load", () => { 
+ *     MathLive.renderMathInDocument();
+ * });
+ * 
+ */
+
+
+function renderMathInDocument(options) {
+  renderMathInElement(document.body, options);
+}
+
+function getElement(element) {
+  var result = element;
+
+  if (typeof element === 'string') {
+    result = document.getElementById(element);
+
+    if (!result) {
+      throw Error("The element with ID \"".concat(element, "\" could not be found."));
+    }
+  }
+
+  return result;
+}
+/**
+ * Transform all the children of `element`, recursively, that contain LaTeX code
+ * into typeset math.
+ *
+ * **See:** {@tutorial USAGE_GUIDE}
+ *
+ * @param {Element|string} element An HTML DOM element, or a string containing
+ * the ID of an element.
+ * @param {object} [options={}]
+ *
+ * @param {string} [options.namespace=''] - Namespace that is added to `data-`
+ * attributes to avoid collisions with other libraries. 
+ * 
+ * It is empty by default.
+ * 
+ * The namespace should be a string of lowercase letters.
+ * 
+ * @param {object[]} [options.macros={}] - Custom LaTeX macros
+ * 
+ * @param {string[]} [options.skipTags=['noscript', 'style', 'textarea', 'pre', 'code', 'annotation', 'annotation-xml'] ] 
+ * an array of tag names whose content will
+ *  not be scanned for delimiters (unless their class matches the `processClass`
+ * pattern below.
+ * 
+ * @param {string} [options.ignoreClass='tex2jax_ignore'] a string used as a
+ * regular expression of class names of elements whose content will not be
+ * scanned for delimiters
+
+ * @param {string} [options.processClass='tex2jax_process']   a string used as a
+ * regular expression of class names of elements whose content **will** be
+ * scanned for delimiters,  even if their tag name or parent class name would
+ * have prevented them from doing so.
+ * 
+ * @param {string} [options.processScriptType="math/tex"] `<script>` tags of the 
+ * indicated type will be processed while others will be ignored.
+
+ * 
+ * @param {string} [options.renderAccessibleContent='mathml'] The format(s) in 
+ * which to render the math for screen readers:
+ * - `'mathml'` MathML
+ * - `'speakable-text'` Spoken representation
+ * 
+ * You can pass an empty string to turn off the rendering of accessible content.
+ * 
+ * You can pass multiple values separated by spaces, e.g `'mathml speakable-text'`
+ * 
+ * @param {boolean} [options.preserveOriginalContent=true] if true, store the
+ * original textual content of the element in a `data-original-content`
+ * attribute. This value can be accessed for example to restore the element to
+ * its original value:
+ * ```javascript
+ *      elem.innerHTML = elem.dataset.originalContent;
+ * ```
+ * @param {boolean} [options.readAloud=false] if true, generate markup that can
+ * be read aloud later using {@linkcode module:editor-mathfield#speakAllWithSynchronizedHighlighting speakAllWithSynchronizedHighlighting}
+ * 
+ * @param {boolean} [options.TeX.processEnvironments=true] if false, math expression
+ * that start with `\begin{` will not automatically be rendered.
+ * 
+ * @param {string[][]} [options.TeX.delimiters.inline=[['\\(','\\)']] ] arrays
+ * of delimiter pairs that will trigger a render of the content in 'textstyle'
+ *
+ * @param {string[][]} [options.TeX.delimiters.display=[['$$', '$$'], ['\\[', '\\]']] ] arrays
+ * of delimiter pairs that will trigger a render of the content in
+ * 'displaystyle'.
+ * 
+ * @param {function} [renderToMarkup] a function that will convert any LaTeX found to
+ * HTML markup. This is only useful to override the default MathLive renderer
+ * 
+ * @param {function} [renderToMathML] a function that will convert any LaTeX found to
+ * MathML markup.
+ * 
+ * @param {function} [renderToSpeakableText] a function that will convert any LaTeX found to
+ * speakable text markup.
+ * 
+ * @function module:mathlive#renderMathInElement
+ */
+
+
+function renderMathInElement(element, options) {
+  if (!_autoRender.default) {
+    console.warn('The AutoRender module is not loaded.');
+    return;
+  }
+
+  options = options || {};
+  options.renderToMarkup = options.renderToMarkup || toMarkup;
+  options.renderToMathML = options.renderToMathML || toMathML;
+  options.renderToSpeakableText = options.renderToSpeakableText || latexToSpeakableText;
+  options.macros = options.macros || _definitions.default.MACROS;
+
+  _autoRender.default.renderMathInElement(getElement(element), options);
+}
+
+function validateNamespace(options) {
+  if (options.namespace) {
+    if (!/^[a-z]+[-]?$/.test(options.namespace)) {
+      throw Error('options.namespace must be a string of lowercase characters only');
+    }
+
+    if (!/-$/.test(options.namespace)) {
+      options.namespace += '-';
+    }
+  }
+}
+/**
+ *
+ * @param {string|Element|MathField} element
+ * @param {Object.<string, any>} [options={}]
+ * @param {string} options.namespace The namespace used for the `data-`
+ * attributes. If you used a namespace with `renderMathInElement`, you must
+ * use the same namespace here.
+ * @function module:mathlive#revertToOriginalContent
+ */
+
+
+function revertToOriginalContent(element, options) {
+  element = getElement(element); // element is a pair: accessible span, math -- set it to the math part
+
+  element = element.children[1];
+
+  if (element instanceof _editorMathfield.default.MathField) {
+    element.revertToOriginalContent();
+  } else {
+    options = options || {};
+    validateNamespace(options);
+    element.innerHTML = element.getAttribute('data-' + (options.namespace || '') + 'original-content');
+  }
+}
+/**
+ * After calling {@linkcode module:mathlive#renderMathInElement renderMathInElement}
+ * or {@linkcode module:mathlive#makeMathField makeMathField} the original content
+ * can be retrived by calling this function.
+ * 
+ * Given the following markup:
+ * ```html
+ * <span id='equation'>$$f(x)=sin(x)$$</span>
+ * ```
+ * The following code:
+ * ```javascript
+ * MathLive.renderMathInElement('equation');
+ * console.log(MathLive.getOriginalContent('equation'));
+ * ```
+ * will output:
+ * ```
+ * $$f(x)=sin(x)$$
+ * ```
+ * @param {string | Element | MathField} element - A DOM element ID, a DOM 
+ * element or a MathField.
+ * @param {object} [options={}]
+ * @param {string} [options.namespace=""] The namespace used for the `data-`
+ * attributes. 
+ * If you used a namespace with `renderMathInElement`, you must
+ * use the same namespace here.
+ * @return {string} the original content of the element.
+ * @function module:mathlive#getOriginalContent
+ */
+
+
+function getOriginalContent(element, options) {
+  element = getElement(element); // element is a pair: accessible span, math -- set it to the math part
+
+  element = element.children[1];
+
+  if (element instanceof _editorMathfield.default.MathField) {
+    return element.originalContent;
+  }
+
+  options = options || {};
+  validateNamespace(options);
+  return element.getAttribute('data-' + (options.namespace || '') + 'original-content');
+}
+
+var MathLive = {
+  latexToMarkup: toMarkup,
+  latexToMathML: toMathML,
+  latexToSpeakableText: latexToSpeakableText,
+  latexToAST: latexToAST,
+  makeMathField: makeMathField,
+  renderMathInDocument: renderMathInDocument,
+  renderMathInElement: renderMathInElement,
+  revertToOriginalContent: revertToOriginalContent,
+  getOriginalContent: getOriginalContent,
+  readAloud: readAloud,
+  readAloudStatus: readAloudStatus,
+  pauseReadAloud: pauseReadAloud,
+  resumeReadAloud: resumeReadAloud,
+  playReadAloud: playReadAloud
+};
+var _default = MathLive;
+exports.default = _default;
\ No newline at end of file
diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json
index 39410dc60..2d8534575 100644
--- a/npm-shrinkwrap.json
+++ b/npm-shrinkwrap.json
@@ -1,5 +1,5 @@
 {
-  "name": "mathlive",
+  "name": "@lls/mathlive",
   "version": "0.29.0",
   "lockfileVersion": 1,
   "requires": true,
diff --git a/package.json b/package.json
index df00cafdb..29283ad17 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@lls/mathlive",
-  "version": "0.29.0",
+  "version": "0.29.1",
   "description": "Render and edit beautifully typeset math",
   "license": "MIT",
   "repository": {
@@ -44,7 +44,7 @@
     "watch-test": "chokidar \"src/*.js\" -c \"npm run test -s\" ",
     "coverage": "nyc npm run babel-node ./test/test.js && nyc report",
     "coverage:report": "nyc report",
-    "prepare": "npm run dist",
+    "prepare": "npm-run-all -s dist babel",
     "predocs": "echo Build docs...",
     "docs": "jsdoc -c ./jsdoc.conf.json && echo docs.mathlive.io > docs/CNAME",
     "watch-docs": "chokidar \"src/*.js\" \"tutorials/*.md\" \"examples/*.md\" -c \"npm run docs -s\"",
@@ -52,7 +52,7 @@
     "rollup": "rollup --config",
     "watch-rollup": "rollup --config --watch",
     "dist": "npm-run-all -s clean build docs test",
-    "babel": "rm -rf dist && npm run rollup && npx babel src --out-dir dist"
+    "babel": "npx babel src --out-dir dist"
   },
   "nyc": {
     "exclude": [