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e=this._undoIndex,t=this._undoStackLength;if(e+1c&&h.splitText(c),h===s&&l&&(h=h.splitText(l),d===s&&(d=h,c-=l),s=h,l=0),j(h,o=this.createElement(e,t)),o.appendChild(h))}while(r.nextNode());d.nodeType!==i&&(h.nodeType===i?(d=h,c=h.length):(d=h.parentNode,c=1)),n=this.createRange(s,l,d,c)}return n},Qe._removeFormat=function(e,t,n,o){this._saveRangeToBookmark(n);var r,a=this._doc;n.collapsed&&(C?(r=a.createTextNode(s),this._didAddZWS()):r=a.createTextNode(""),ae(n,r));for(var d=n.commonAncestorContainer;I(d);)d=d.parentNode;var l=n.startContainer,c=n.startOffset,h=n.endContainer,u=n.endOffset,f=[],p=function(e,t){if(!ce(n,e,!1)){var o,r,a=e.nodeType===i;if(ce(n,e,!0))if(a)e===h&&u!==e.length&&f.push([t,e.splitText(u)]),e===l&&c&&(e.splitText(c),f.push([t,e]));else for(o=e.firstChild;o;o=r)r=o.nextSibling,p(o,t);else"INPUT"===e.nodeName||a&&!e.data||f.push([t,e])}},g=Array.prototype.filter.call(d.getElementsByTagName(e),function(i){return ce(n,i,!0)&&K(i,e,t)});return 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t&&(this.setSelection(n),this._updatePath(n,!0),N||this._docWasChanged()),this},Qe.modifyBlocks=function(e,t){if(!t&&!(t=this.getSelection()))return this;this._recordUndoState(t,this._isInUndoState);var n,i=this._root;return _e(t,i),ue(t,i,i,i),n=se(t,i,i),ae(t,e.call(this,n)),t.endOffset]+|\([^\s()<>]+\))+(?:[^\s?&`!()\[\]{};:'".,<>«»“”‘’]|\([^\s()<>]+\)))|([\w\-.%+]+@(?:[\w\-]+\.)+[a-z]{2,}\b(?:[?][^&?\s]+=[^\s?&`!()\[\]{};:'".,<>«»“”‘’]+(?:&[^&?\s]+=[^\s?&`!()\[\]{};:'".,<>«»“”‘’]+)*)?))/i;var dt=function(e,t,n){var i,o,r,a,s,d,l,c=e.ownerDocument,h=new 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a&&a.nodeType===i||(o=this._doc.createTextNode(""),a.insertBefore(o,a.childNodes[s]),a=o,s=0),r={text:e,preventDefault:function(){this.defaultPrevented=!0},defaultPrevented:!1},t&&this.fireEvent("willPaste",r),r.defaultPrevented||(e=r.text,a.insertData(s,e),n.setStart(a,s+e.length),n.collapse(!0)),this.setSelection(n),this}var d,l,c,h,u=e.split("\n"),f=this._config,p=f.blockTag,g=f.blockAttributes,m="",v="<"+p;for(d in g)v+=" "+d+'="'+lt(g[d])+'"';for(v+=">",l=0,c=u.length;l")+m),u[l]=h;return this.insertHTML(u.join(""),t)};var ct=function(e,t,n){return function(){return this[e](t,n),this.focus()}};Qe.addStyles=function(e){if(e){var t=this._doc.documentElement.firstChild,n=this.createElement("STYLE",{type:"text/css"});n.appendChild(this._doc.createTextNode(e)),t.appendChild(n)}return this},Qe.bold=ct("changeFormat",{tag:"B"}),Qe.italic=ct("changeFormat",{tag:"I"}),Qe.underline=ct("changeFormat",{tag:"U"}),Qe.strikethrough=ct("changeFormat",{tag:"S"}),Qe.subscript=ct("changeFormat",{tag:"SUB"},{tag:"SUP"}),Qe.superscript=ct("changeFormat",{tag:"SUP"},{tag:"SUB"}),Qe.removeBold=ct("changeFormat",null,{tag:"B"}),Qe.removeItalic=ct("changeFormat",null,{tag:"I"}),Qe.removeUnderline=ct("changeFormat",null,{tag:"U"}),Qe.removeStrikethrough=ct("changeFormat",null,{tag:"S"}),Qe.removeSubscript=ct("changeFormat",null,{tag:"SUB"}),Qe.removeSuperscript=ct("changeFormat",null,{tag:"SUP"}),Qe.makeLink=function(e,t){var n=this.getSelection();if(n.collapsed){var i=e.indexOf(":")+1;if(i)for(;"/"===e[i];)i+=1;ae(n,this._doc.createTextNode(e.slice(i)))}return t=Ge(Ge({href:e},t,!0),this._config.tagAttributes.a,!1),this.changeFormat({tag:"A",attributes:t},{tag:"A"},n),this.focus()},Qe.removeLink=function(){return this.changeFormat(null,{tag:"A"},this.getSelection(),!0),this.focus()},Qe.setFontFace=function(e){var t=this._config.classNames.fontFamily;return this.changeFormat(e?{tag:"SPAN",attributes:{class:t,style:"font-family: "+e+", sans-serif;"}}:null,{tag:"SPAN",attributes:{class:t}}),this.focus()},Qe.setFontSize=function(e){var t=this._config.classNames.fontSize;return this.changeFormat(e?{tag:"SPAN",attributes:{class:t,style:"font-size: "+("number"==typeof e?e+"px":e)}}:null,{tag:"SPAN",attributes:{class:t}}),this.focus()},Qe.setTextColour=function(e){var t=this._config.classNames.colour;return this.changeFormat(e?{tag:"SPAN",attributes:{class:t,style:"color:"+e}}:null,{tag:"SPAN",attributes:{class:t}}),this.focus()},Qe.setHighlightColour=function(e){var t=this._config.classNames.highlight;return this.changeFormat(e?{tag:"SPAN",attributes:{class:t,style:"background-color:"+e}}:e,{tag:"SPAN",attributes:{class:t}}),this.focus()},Qe.setTextAlignment=function(e){return this.forEachBlock(function(t){var n=t.className.split(/\s+/).filter(function(e){return!!e&&!/^align/.test(e)}).join(" ");e?(t.className=n+" align-"+e,t.style.textAlign=e):(t.className=n,t.style.textAlign="")},!0),this.focus()},Qe.setTextDirection=function(e){return this.forEachBlock(function(t){e?t.dir=e:t.removeAttribute("dir")},!0),this.focus()};var ht=function(e){for(var t,n=this._root,i=this._doc,o=i.createDocumentFragment(),r=M(e,n);t=r.nextNode();){var a,s,d=t.querySelectorAll("BR"),l=[],c=d.length;for(a=0;a-1;)r.appendChild(s.createTextNode(o.slice(0,a))),r.appendChild(s.createElement("BR")),o=o.slice(a+1);i.parentNode.insertBefore(r,i),i.data=o}J(t,d),j(t,V(t))}return e};Qe.code=function(){var e=this.getSelection();return e.collapsed||w(e.commonAncestorContainer)?this.modifyBlocks(ht,e):this.changeFormat({tag:"CODE",attributes:this._config.tagAttributes.code},null,e),this.focus()},Qe.removeCode=function(){var e=this.getSelection();return G(e.commonAncestorContainer,this._root,"PRE")?this.modifyBlocks(ut,e):this.changeFormat(null,{tag:"CODE"},e),this.focus()},Qe.toggleCode=function(){return this.hasFormat("PRE")||this.hasFormat("CODE")?this.removeCode():this.code(),this},Qe.removeAllFormatting=function(e){if(!e&&!(e=this.getSelection())||e.collapsed)return this;for(var t=this._root,n=e.commonAncestorContainer;n&&!F(n);)n=n.parentNode;if(n||(_e(e,t),n=t),n.nodeType===i)return this;this.saveUndoState(e),ue(e,n,n,t);for(var o,r,a=n.ownerDocument,s=e.startContainer,d=e.startOffset,l=e.endContainer,c=e.endOffset,h=a.createDocumentFragment(),u=a.createDocumentFragment(),f=ee(l,c,n,t),p=ee(s,d,n,t);p!==f;)o=p.nextSibling,h.appendChild(p),p=o;return function e(t,n,o){var r,a;for(r=n.firstChild;r;r=a){if(a=r.nextSibling,I(r)){if(r.nodeType===i||"BR"===r.nodeName||"IMG"===r.nodeName){o.appendChild(r);continue}}else if(F(r)){o.appendChild(t.createDefaultBlock([e(t,r,t._doc.createDocumentFragment())]));continue}e(t,r,o)}return o}(this,h,u),u.normalize(),p=u.firstChild,o=u.lastChild,r=n.childNodes,p?(n.insertBefore(u,f),d=T.call(r,p),c=T.call(r,o)+1):c=d=T.call(r,f),e.setStart(n,d),e.setEnd(n,c),te(n,e),he(e),this.setSelection(e),this._updatePath(e,!0),this.focus()},Qe.increaseQuoteLevel=ct("modifyBlocks",function(e){return this.createElement("BLOCKQUOTE",this._config.tagAttributes.blockquote,[e])}),Qe.decreaseQuoteLevel=ct("modifyBlocks",ot),Qe.makeUnorderedList=ct("modifyBlocks",function(e){return at(this,e,"UL"),e}),Qe.makeOrderedList=ct("modifyBlocks",function(e){return at(this,e,"OL"),e}),Qe.removeList=ct("modifyBlocks",function(e){var t,n,i,o,r,a=e.querySelectorAll("UL, OL"),s=e.querySelectorAll("LI"),d=this._root;for(t=0,n=a.length;t