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 * Vditor v3.10.8 - A markdown editor written in TypeScript.
 *
 * MIT License
 *
 * Copyright (c) 2018-present B3log 开源, b3log.org
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 */(function(xe,Me){(function(je,te){xe.exports=te()})(Jn,()=>(()=>{var Ee={192:se=>{var E=function(){this.Diff_Timeout=1,this.Diff_EditCost=4,this.Match_Threshold=.5,this.Match_Distance=1e3,this.Patch_DeleteThreshold=.5,this.Patch_Margin=4,this.Match_MaxBits=32},x=-1,V=1,j=0;E.Diff=function(c,l){return[c,l]},E.prototype.diff_main=function(c,l,g,p){typeof p=="undefined"&&(this.Diff_Timeout<=0?p=Number.MAX_VALUE:p=new Date().getTime()+this.Diff_Timeout*1e3);var m=p;if(c==null||l==null)throw new Error("Null input. (diff_main)");if(c==l)return c?[new E.Diff(j,c)]:[];typeof g=="undefined"&&(g=!0);var u=g,S=this.diff_commonPrefix(c,l),b=c.substring(0,S);c=c.substring(S),l=l.substring(S),S=this.diff_commonSuffix(c,l);var y=c.substring(c.length-S);c=c.substring(0,c.length-S),l=l.substring(0,l.length-S);var w=this.diff_compute_(c,l,u,m);return b&&w.unshift(new E.Diff(j,b)),y&&w.push(new E.Diff(j,y)),this.diff_cleanupMerge(w),w},E.prototype.diff_compute_=function(c,l,g,p){var m;if(!c)return[new E.Diff(V,l)];if(!l)return[new E.Diff(x,c)];var u=c.length>l.length?c:l,S=c.length>l.length?l:c,b=u.indexOf(S);if(b!=-1)return m=[new E.Diff(V,u.substring(0,b)),new E.Diff(j,S),new E.Diff(V,u.substring(b+S.length))],c.length>l.length&&(m[0][0]=m[2][0]=x),m;if(S.length==1)return[new E.Diff(x,c),new E.Diff(V,l)];var y=this.diff_halfMatch_(c,l);if(y){var w=y[0],s=y[1],L=y[2],U=y[3],Y=y[4],H=this.diff_main(w,L,g,p),Q=this.diff_main(s,U,g,p);return H.concat([new E.Diff(j,Y)],Q)}return g&&c.length>100&&l.length>100?this.diff_lineMode_(c,l,p):this.diff_bisect_(c,l,p)},E.prototype.diff_lineMode_=function(c,l,g){var p=this.diff_linesToChars_(c,l);c=p.chars1,l=p.chars2;var m=p.lineArray,u=this.diff_main(c,l,!1,g);this.diff_charsToLines_(u,m),this.diff_cleanupSemantic(u),u.push(new E.Diff(j,""));for(var S=0,b=0,y=0,w="",s="";S<u.length;){switch(u[S][0]){case V:y++,s+=u[S][1];break;case x:b++,w+=u[S][1];break;case j:if(b>=1&&y>=1){u.splice(S-b-y,b+y),S=S-b-y;for(var L=this.diff_main(w,s,!1,g),U=L.length-1;U>=0;U--)u.splice(S,0,L[U]);S=S+L.length}y=0,b=0,w="",s="";break}S++}return u.pop(),u},E.prototype.diff_bisect_=function(c,l,g){for(var p=c.length,m=l.length,u=Math.ceil((p+m)/2),S=u,b=2*u,y=new Array(b),w=new Array(b),s=0;s<b;s++)y[s]=-1,w[s]=-1;y[S+1]=0,w[S+1]=0;for(var L=p-m,U=L%2!=0,Y=0,H=0,Q=0,ne=0,oe=0;oe<u&&!(new Date().getTime()>g);oe++){for(var pe=-oe+Y;pe<=oe-H;pe+=2){var ye=S+pe,ve;pe==-oe||pe!=oe&&y[ye-1]<y[ye+1]?ve=y[ye+1]:ve=y[ye-1]+1;for(var Ce=ve-pe;ve<p&&Ce<m&&c.charAt(ve)==l.charAt(Ce);)ve++,Ce++;if(y[ye]=ve,ve>p)H+=2;else if(Ce>m)Y+=2;else if(U){var ke=S+L-pe;if(ke>=0&&ke<b&&w[ke]!=-1){var Te=p-w[ke];if(ve>=Te)return this.diff_bisectSplit_(c,l,ve,Ce,g)}}}for(var De=-oe+Q;De<=oe-ne;De+=2){var ke=S+De,Te;De==-oe||De!=oe&&w[ke-1]<w[ke+1]?Te=w[ke+1]:Te=w[ke-1]+1;for(var Be=Te-De;Te<p&&Be<m&&c.charAt(p-Te-1)==l.charAt(m-Be-1);)Te++,Be++;if(w[ke]=Te,Te>p)ne+=2;else if(Be>m)Q+=2;else if(!U){var ye=S+L-De;if(ye>=0&&ye<b&&y[ye]!=-1){var ve=y[ye],Ce=S+ve-ye;if(Te=p-Te,ve>=Te)return this.diff_bisectSplit_(c,l,ve,Ce,g)}}}}return[new E.Diff(x,c),new E.Diff(V,l)]},E.prototype.diff_bisectSplit_=function(c,l,g,p,m){var u=c.substring(0,g),S=l.substring(0,p),b=c.substring(g),y=l.substring(p),w=this.diff_main(u,S,!1,m),s=this.diff_main(b,y,!1,m);return w.concat(s)},E.prototype.diff_linesToChars_=function(c,l){var g=[],p={};g[0]="";function m(y){for(var w="",s=0,L=-1,U=g.length;L<y.length-1;){L=y.indexOf(`
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m},E.prototype.diff_commonOverlap_=function(c,l){var g=c.length,p=l.length;if(g==0||p==0)return 0;g>p?c=c.substring(g-p):g<p&&(l=l.substring(0,g));var m=Math.min(g,p);if(c==l)return m;for(var u=0,S=1;;){var b=c.substring(m-S),y=l.indexOf(b);if(y==-1)return u;S+=y,(y==0||c.substring(m-S)==l.substring(0,S))&&(u=S,S++)}},E.prototype.diff_halfMatch_=function(c,l){if(this.Diff_Timeout<=0)return null;var g=c.length>l.length?c:l,p=c.length>l.length?l:c;if(g.length<4||p.length*2<g.length)return null;var m=this;function u(H,Q,ne){for(var oe=H.substring(ne,ne+Math.floor(H.length/4)),pe=-1,ye="",ve,Ce,ke,Te;(pe=Q.indexOf(oe,pe+1))!=-1;){var De=m.diff_commonPrefix(H.substring(ne),Q.substring(pe)),Be=m.diff_commonSuffix(H.substring(0,ne),Q.substring(0,pe));ye.length<Be+De&&(ye=Q.substring(pe-Be,pe)+Q.substring(pe,pe+De),ve=H.substring(0,ne-Be),Ce=H.substring(ne+De),ke=Q.substring(0,pe-Be),Te=Q.substring(pe+De))}return ye.length*2>=H.length?[ve,Ce,ke,Te,ye]:null}var S=u(g,p,Math.ceil(g.length/4)),b=u(g,p,Math.ceil(g.length/2)),y;if(!S&&!b)return null;b?S?y=S[4].length>b[4].length?S:b:y=b:y=S;var w,s,L,U;c.length>l.length?(w=y[0],s=y[1],L=y[2],U=y[3]):(L=y[0],U=y[1],w=y[2],s=y[3]);var Y=y[4];return[w,s,L,U,Y]},E.prototype.diff_cleanupSemantic=function(c){for(var l=!1,g=[],p=0,m=null,u=0,S=0,b=0,y=0,w=0;u<c.length;)c[u][0]==j?(g[p++]=u,S=y,b=w,y=0,w=0,m=c[u][1]):(c[u][0]==V?y+=c[u][1].length:w+=c[u][1].length,m&&m.length<=Math.max(S,b)&&m.length<=Math.max(y,w)&&(c.splice(g[p-1],0,new E.Diff(x,m)),c[g[p-1]+1][0]=V,p--,p--,u=p>0?g[p-1]:-1,S=0,b=0,y=0,w=0,m=null,l=!0)),u++;for(l&&this.diff_cleanupMerge(c),this.diff_cleanupSemanticLossless(c),u=1;u<c.length;){if(c[u-1][0]==x&&c[u][0]==V){var s=c[u-1][1],L=c[u][1],U=this.diff_commonOverlap_(s,L),Y=this.diff_commonOverlap_(L,s);U>=Y?(U>=s.length/2||U>=L.length/2)&&(c.splice(u,0,new E.Diff(j,L.substring(0,U))),c[u-1][1]=s.substring(0,s.length-U),c[u+1][1]=L.substring(U),u++):(Y>=s.length/2||Y>=L.length/2)&&(c.splice(u,0,new E.Diff(j,s.substring(0,Y))),c[u-1][0]=V,c[u-1][1]=L.substring(0,L.length-Y),c[u+1][0]=x,c[u+1][1]=s.substring(Y),u++),u++}u++}},E.prototype.diff_cleanupSemanticLossless=function(c){function l(Y,H){if(!Y||!H)return 6;var Q=Y.charAt(Y.length-1),ne=H.charAt(0),oe=Q.match(E.nonAlphaNumericRegex_),pe=ne.match(E.nonAlphaNumericRegex_),ye=oe&&Q.match(E.whitespaceRegex_),ve=pe&&ne.match(E.whitespaceRegex_),Ce=ye&&Q.match(E.linebreakRegex_),ke=ve&&ne.match(E.linebreakRegex_),Te=Ce&&Y.match(E.blanklineEndRegex_),De=ke&&H.match(E.blanklineStartRegex_);return Te||De?5:Ce||ke?4:oe&&!ye&&ve?3:ye||ve?2:oe||pe?1:0}for(var g=1;g<c.length-1;){if(c[g-1][0]==j&&c[g+1][0]==j){var p=c[g-1][1],m=c[g][1],u=c[g+1][1],S=this.diff_commonSuffix(p,m);if(S){var b=m.substring(m.length-S);p=p.substring(0,p.length-S),m=b+m.substring(0,m.length-S),u=b+u}for(var y=p,w=m,s=u,L=l(p,m)+l(m,u);m.charAt(0)===u.charAt(0);){p+=m.charAt(0),m=m.substring(1)+u.charAt(0),u=u.substring(1);var U=l(p,m)+l(m,u);U>=L&&(L=U,y=p,w=m,s=u)}c[g-1][1]!=y&&(y?c[g-1][1]=y:(c.splice(g-1,1),g--),c[g][1]=w,s?c[g+1][1]=s:(c.splice(g+1,1),g--))}g++}},E.nonAlphaNumericRegex_=/[^a-zA-Z0-9]/,E.whitespaceRegex_=/\s/,E.linebreakRegex_=/[\r\n]/,E.blanklineEndRegex_=/\n\r?\n$/,E.blanklineStartRegex_=/^\r?\n\r?\n/,E.prototype.diff_cleanupEfficiency=function(c){for(var l=!1,g=[],p=0,m=null,u=0,S=!1,b=!1,y=!1,w=!1;u<c.length;)c[u][0]==j?(c[u][1].length<this.Diff_EditCost&&(y||w)?(g[p++]=u,S=y,b=w,m=c[u][1]):(p=0,m=null),y=w=!1):(c[u][0]==x?w=!0:y=!0,m&&(S&&b&&y&&w||m.length<this.Diff_EditCost/2&&S+b+y+w==3)&&(c.splice(g[p-1],0,new E.Diff(x,m)),c[g[p-1]+1][0]=V,p--,m=null,S&&b?(y=w=!0,p=0):(p--,u=p>0?g[p-1]:-1,y=w=!1),l=!0)),u++;l&&this.diff_cleanupMerge(c)},E.prototype.diff_cleanupMerge=function(c){c.push(new E.Diff(j,""));for(var l=0,g=0,p=0,m="",u="",S;l<c.length;)switch(c[l][0]){case V:p++,u+=c[l][1],l++;break;case x:g++,m+=c[l][1],l++;break;case j:g+p>1?(g!==0&&p!==0&&(S=this.diff_commonPrefix(u,m),S!==0&&(l-g-p>0&&c[l-g-p-1][0]==j?c[l-g-p-1][1]+=u.substring(0,S):(c.splice(0,0,new E.Diff(j,u.substring(0,S))),l++),u=u.substring(S),m=m.substring(S)),S=this.diff_commonSuffix(u,m),S!==0&&(c[l][1]=u.substring(u.length-S)+c[l][1],u=u.substring(0,u.length-S),m=m.substring(0,m.length-S))),l-=g+p,c.splice(l,g+p),m.length&&(c.splice(l,0,new E.Diff(x,m)),l++),u.length&&(c.splice(l,0,new E.Diff(V,u)),l++),l++):l!==0&&c[l-1][0]==j?(c[l-1][1]+=c[l][1],c.splice(l,1)):l++,p=0,g=0,m="",u="";break}c[c.length-1][1]===""&&c.pop();var b=!1;for(l=1;l<c.length-1;)c[l-1][0]==j&&c[l+1][0]==j&&(c[l][1].substring(c[l][1].length-c[l-1][1].length)==c[l-1][1]?(c[l][1]=c[l-1][1]+c[l][1].substring(0,c[l][1].length-c[l-1][1].length),c[l+1][1]=c[l-1][1]+c[l+1][1],c.splice(l-1,1),b=!0):c[l][1].substring(0,c[l+1][1].length)==c[l+1][1]&&(c[l-1][1]+=c[l+1][1],c[l][1]=c[l][1].substring(c[l+1][1].length)+c[l+1][1],c.splice(l+1,1),b=!0)),l++;b&&this.diff_cleanupMerge(c)},E.prototype.diff_xIndex=function(c,l){var g=0,p=0,m=0,u=0,S;for(S=0;S<c.length&&(c[S][0]!==V&&(g+=c[S][1].length),c[S][0]!==x&&(p+=c[S][1].length),!(g>l));S++)m=g,u=p;return c.length!=S&&c[S][0]===x?u:u+(l-m)},E.prototype.diff_prettyHtml=function(c){for(var l=[],g=/&/g,p=/</g,m=/>/g,u=/\n/g,S=0;S<c.length;S++){var b=c[S][0],y=c[S][1],w=y.replace(g,"&amp;").replace(p,"&lt;").replace(m,"&gt;").replace(u,"&para;<br>");switch(b){case V:l[S]='<ins style="background:#e6ffe6;">'+w+"</ins>";break;case x:l[S]='<del style="background:#ffe6e6;">'+w+"</del>";break;case j:l[S]="<span>"+w+"</span>";break}}return l.join("")},E.prototype.diff_text1=function(c){for(var l=[],g=0;g<c.length;g++)c[g][0]!==V&&(l[g]=c[g][1]);return l.join("")},E.prototype.diff_text2=function(c){for(var l=[],g=0;g<c.length;g++)c[g][0]!==x&&(l[g]=c[g][1]);return l.join("")},E.prototype.diff_levenshtein=function(c){for(var l=0,g=0,p=0,m=0;m<c.length;m++){var u=c[m][0],S=c[m][1];switch(u){case V:g+=S.length;break;case x:p+=S.length;break;case j:l+=Math.max(g,p),g=0,p=0;break}}return l+=Math.max(g,p),l},E.prototype.diff_toDelta=function(c){for(var l=[],g=0;g<c.length;g++)switch(c[g][0]){case V:l[g]="+"+encodeURI(c[g][1]);break;case x:l[g]="-"+c[g][1].length;break;case j:l[g]="="+c[g][1].length;break}return l.join("	").replace(/%20/g," ")},E.prototype.diff_fromDelta=function(c,l){for(var g=[],p=0,m=0,u=l.split(/\t/g),S=0;S<u.length;S++){var b=u[S].substring(1);switch(u[S].charAt(0)){case"+":try{g[p++]=new E.Diff(V,decodeURI(b))}catch(s){throw new Error("Illegal escape in diff_fromDelta: "+b)}break;case"-":case"=":var y=parseInt(b,10);if(isNaN(y)||y<0)throw new Error("Invalid number in diff_fromDelta: "+b);var w=c.substring(m,m+=y);u[S].charAt(0)=="="?g[p++]=new E.Diff(j,w):g[p++]=new E.Diff(x,w);break;default:if(u[S])throw new Error("Invalid diff operation in diff_fromDelta: "+u[S])}}if(m!=c.length)throw new Error("Delta length ("+m+") does not equal source text length ("+c.length+").");return g},E.prototype.match_main=function(c,l,g){if(c==null||l==null||g==null)throw new Error("Null input. 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</div></div>`,0)}),i}return t}(Ae),si=function(){var e=function(t,n){return e=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(r,i){r.__proto__=i}||function(r,i){for(var a in i)Object.prototype.hasOwnProperty.call(i,a)&&(r[a]=i[a])},e(t,n)};return function(t,n){if(typeof n!="function"&&n!==null)throw new TypeError("Class extends value "+String(n)+" is not a constructor or null");e(t,n);function r(){this.constructor=t}t.prototype=n===null?Object.create(n):(r.prototype=n.prototype,new r)}}(),li=function(e){si(t,e);function t(n,r){var i=e.call(this,n,r)||this;return i.element.children[0].addEventListener((0,l.y3)(),function(a){if(a.preventDefault(),!(i.element.firstElementChild.classList.contains(E.Y.CLASS_MENU_DISABLED)||n.currentMode==="sv")){var o=(0,v.RN)(n),f=(0,s._Y)(o.startContainer,"LI");f&&wn(n,f,o)}}),i}return t}(Ae),ci=function(){var e=function(t,n){return e=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(r,i){r.__proto__=i}||function(r,i){for(var a in i)Object.prototype.hasOwnProperty.call(i,a)&&(r[a]=i[a])},e(t,n)};return function(t,n){if(typeof n!="function"&&n!==null)throw new TypeError("Class extends value "+String(n)+" is not a constructor or null");e(t,n);function r(){this.constructor=t}t.prototype=n===null?Object.create(n):(r.prototype=n.prototype,new r)}}(),ui=function(e){ci(t,e);function t(n,r){var i=e.call(this,n,r)||this;return i.element.children[0].addEventListener((0,l.y3)(),function(a){a.preventDefault(),n.tip.show(`<div style="max-width: 520px; font-size: 14px;line-height: 22px;margin-bottom: 14px;">
<p style="text-align: center;margin: 14px 0">
    <em>下一代的 Markdown 编辑器，为未来而构建</em>
</p>
<div style="display: flex;margin-bottom: 14px;flex-wrap: wrap;align-items: center">
    <img src="https://unpkg.com/vditor/dist/images/logo.png" style="margin: 0 auto;height: 68px"/>
    <div>&nbsp;&nbsp;</div>
    <div style="flex: 1;min-width: 250px">
        Vditor 是一款浏览器端的 Markdown 编辑器，支持所见即所得、即时渲染（类似 Typora）和分屏预览模式。
        它使用 TypeScript 实现，支持原生 JavaScript 以及 Vue、React、Angular 和 Svelte 等框架。
    </div>
</div>
<div style="display: flex;flex-wrap: wrap;">
    <ul style="list-style: none;flex: 1;min-width:148px">
        <li>
        项目地址：<a href="https://b3log.org/vditor" target="_blank">b3log.org/vditor</a>
        </li>
        <li>
        开源协议：MIT
        </li>
    </ul>
    <ul style="list-style: none;margin-right: 18px">
        <li>
        组件版本：Vditor v`.concat(E.g," / Lute v").concat(Lute.Version,`
        </li>
        <li>
        赞助捐赠：<a href="https://ld246.com/sponsor" target="_blank">https://ld246.com/sponsor</a>
        </li>
    </ul>
</div>
</div>`),0)}),i}return t}(Ae),fi=function(){var e=function(t,n){return e=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(r,i){r.__proto__=i}||function(r,i){for(var a in i)Object.prototype.hasOwnProperty.call(i,a)&&(r[a]=i[a])},e(t,n)};return function(t,n){if(typeof n!="function"&&n!==null)throw new TypeError("Class extends value "+String(n)+" is not a constructor or null");e(t,n);function r(){this.constructor=t}t.prototype=n===null?Object.create(n):(r.prototype=n.prototype,new r)}}(),di=function(e){fi(t,e);function t(n,r){var i=e.call(this,n,r)||this;return i.element.children[0].addEventListener((0,l.y3)(),function(a){a.preventDefault(),!(i.element.firstElementChild.classList.contains(E.Y.CLASS_MENU_DISABLED)||n.currentMode==="sv")&&Dt(n,"afterend")}),i}return t}(Ae),pi=function(){var e=function(t,n){return e=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(r,i){r.__proto__=i}||function(r,i){for(var a in 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i=e.call(this,n,r)||this;return i._bindEvent(n),i}return t.prototype._bindEvent=function(n){var r=this;this.element.children[0].addEventListener((0,l.y3)(),function(i){i.preventDefault();var a=r.element.firstElementChild;if(!a.classList.contains(E.Y.CLASS_MENU_DISABLED)){var 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Kr(t,n);break}if(i){var a=n.name;return(a==="br"||a==="|")&&(a=a+r),this.elements[a]=i.element,i.element}},e}(),Di=te(192),Hi=function(){function e(){this.stackSize=50,this.resetStack(),this.dmp=new Di}return e.prototype.clearStack=function(t){this.resetStack(),this.resetIcon(t)},e.prototype.resetIcon=function(t){t.toolbar&&(this[t.currentMode].undoStack.length>1?m(t.toolbar.elements,["undo"]):u(t.toolbar.elements,["undo"]),this[t.currentMode].redoStack.length!==0?m(t.toolbar.elements,["redo"]):u(t.toolbar.elements,["redo"]))},e.prototype.undo=function(t){if(t[t.currentMode].element.getAttribute("contenteditable")!=="false"&&!(this[t.currentMode].undoStack.length<2)){var n=this[t.currentMode].undoStack.pop();n&&(this[t.currentMode].redoStack.push(n),this.renderDiff(n,t),this[t.currentMode].hasUndo=!0,y(t,["hint"]))}},e.prototype.redo=function(t){if(t[t.currentMode].element.getAttribute("contenteditable")!=="false"){var n=this[t.currentMode].redoStack.pop();n&&(this[t.currentMode].undoStack.push(n),this.renderDiff(n,t,!0))}},e.prototype.recordFirstPosition=function(t,n){if(getSelection().rangeCount!==0&&!(this[t.currentMode].undoStack.length!==1||this[t.currentMode].undoStack[0].length===0||this[t.currentMode].redoStack.length>0)&&!((0,l.gm)()&&n.key==="Backspace")&&!(0,l.nr)()){var r=this.addCaret(t);r.replace("<wbr>","").replace(" vditor-ir__node--expand","")===this[t.currentMode].undoStack[0][0].diffs[0][1].replace("<wbr>","")&&(this[t.currentMode].undoStack[0][0].diffs[0][1]=r,this[t.currentMode].lastText=r)}},e.prototype.addToUndoStack=function(t){var 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| --- | --- | --- |
|  |  |  |
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