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r=this.positionForIndex(e);this.elements[r]==e?this.elements[r+1]=n(this.elements[r+1],t):this.elements.splice(r,0,e,t)},o.Vector.prototype.magnitude=function(){if(this._magnitude)return this._magnitude;for(var e=0,t=this.elements.length,n=1;n<t;n+=2){var r=this.elements[n];e+=r*r}return this._magnitude=Math.sqrt(e)},o.Vector.prototype.dot=function(e){for(var t=0,n=this.elements,r=e.elements,i=n.length,o=r.length,a=0,s=0,c=0,u=0;c<i&&u<o;)a=n[c],s=r[u],a<s?c+=2:a>s?u+=2:a==s&&(t+=n[c+1]*r[u+1],c+=2,u+=2);return t},o.Vector.prototype.similarity=function(e){return this.dot(e)/(this.magnitude()*e.magnitude())},o.Vector.prototype.toArray=function(){for(var e=new Array(this.elements.length/2),t=1,n=0;t<this.elements.length;t+=2,n++)e[n]=this.elements[t];return e},o.Vector.prototype.toJSON=function(){return this.elements},o.stemmer=function(){var e={ational:"ate",tional:"tion",enci:"ence",anci:"ance",izer:"ize",bli:"ble",alli:"al",entli:"ent",eli:"e",ousli:"ous",ization:"ize",ation:"ate",ator:"ate",alism:"al",iveness:"ive",fulness:"ful",ousness:"ous",aliti:"al",iviti:"ive",biliti:"ble",logi:"log"},t={icate:"ic",ative:"",alize:"al",iciti:"ic",ical:"ic",ful:"",ness:""},n="[aeiouy]",r="[^aeiou][^aeiouy]*",i=new RegExp("^([^aeiou][^aeiouy]*)?[aeiouy][aeiou]*[^aeiou][^aeiouy]*"),o=new RegExp("^([^aeiou][^aeiouy]*)?[aeiouy][aeiou]*[^aeiou][^aeiouy]*[aeiouy][aeiou]*[^aeiou][^aeiouy]*"),a=new RegExp("^([^aeiou][^aeiouy]*)?[aeiouy][aeiou]*[^aeiou][^aeiouy]*([aeiouy][aeiou]*)?$"),s=new RegExp("^([^aeiou][^aeiouy]*)?[aeiouy]"),c=/^(.+?)(ss|i)es$/,u=/^(.+?)([^s])s$/,l=/^(.+?)eed$/,f=/^(.+?)(ed|ing)$/,h=/.$/,d=/(at|bl|iz)$/,p=new RegExp("([^aeiouylsz])\\1$"),m=new RegExp("^"+r+n+"[^aeiouwxy]$"),y=/^(.+?[^aeiou])y$/,v=/^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/,g=/^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/,w=/^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/,b=/^(.+?)(s|t)(ion)$/,_=/^(.+?)e$/,E=/ll$/,x=new RegExp("^"+r+n+"[^aeiouwxy]$"),k=function(n){var r,k,S,T,L,C,O;if(n.length<3)return n;if(S=n.substr(0,1),"y"==S&&(n=S.toUpperCase()+n.substr(1)),T=c,L=u,T.test(n)?n=n.replace(T,"$1$2"):L.test(n)&&(n=n.replace(L,"$1$2")),T=l,L=f,T.test(n)){var P=T.exec(n);T=i,T.test(P[1])&&(T=h,n=n.replace(T,""))}else if(L.test(n)){var P=L.exec(n);r=P[1],L=s,L.test(r)&&(n=r,L=d,C=p,O=m,L.test(n)?n+="e":C.test(n)?(T=h,n=n.replace(T,"")):O.test(n)&&(n+="e"))}if(T=y,T.test(n)){var P=T.exec(n);r=P[1],n=r+"i"}if(T=v,T.test(n)){var P=T.exec(n);r=P[1],k=P[2],T=i,T.test(r)&&(n=r+e[k])}if(T=g,T.test(n)){var P=T.exec(n);r=P[1],k=P[2],T=i,T.test(r)&&(n=r+t[k])}if(T=w,L=b,T.test(n)){var P=T.exec(n);r=P[1],T=o,T.test(r)&&(n=r)}else if(L.test(n)){var P=L.exec(n);r=P[1]+P[2],L=o,L.test(r)&&(n=r)}if(T=_,T.test(n)){var P=T.exec(n);r=P[1],T=o,L=a,C=x,(T.test(r)||L.test(r)&&!C.test(r))&&(n=r)}return T=E,L=o,T.test(n)&&L.test(n)&&(T=h,n=n.replace(T,"")),"y"==S&&(n=S.toLowerCase()+n.substr(1)),n};return function(e){return e.update(k)}}(),o.Pipeline.registerFunction(o.stemmer,"stemmer"),o.generateStopWordFilter=function(e){var t=e.reduce(function(e,t){return e[t]=t,e},{});return function(e){if(e&&t[e.toString()]!==e.toString())return e}},o.stopWordFilter=o.generateStopWordFilter(["a","able","about","across","after","all","almost","also","am","among","an","and","any","are","as","at","be","because","been","but","by","can","cannot","could","dear","did","do","does","either","else","ever","every","for","from","get","got","had","has","have","he","her","hers","him","his","how","however","i","if","in","into","is","it","its","just","least","let","like","likely","may","me","might","most","must","my","neither","no","nor","not","of","off","often","on","only","or","other","our","own","rather","said","say","says","she","should","since","so","some","than","that","the","their","them","then","there","these","they","this","tis","to","too","twas","us","wants","was","we","were","what","when","where","which","while","who","whom","why","will","with","would","yet","you","your"]),o.Pipeline.registerFunction(o.stopWordFilter,"stopWordFilter"),o.trimmer=function(e){return e.update(function(e){return e.replace(/^\W+/,"").replace(/\W+$/,"")})},o.Pipeline.registerFunction(o.trimmer,"trimmer"),o.TokenSet=function(){this.final=!1,this.edges={},this.id=o.TokenSet._nextId,o.TokenSet._nextId+=1},o.TokenSet._nextId=1,o.TokenSet.fromArray=function(e){for(var t=new o.TokenSet.Builder,n=0,r=e.length;n<r;n++)t.insert(e[n]);return t.finish(),t.root},o.TokenSet.fromClause=function(e){return"editDistance"in e?o.TokenSet.fromFuzzyString(e.term,e.editDistance):o.TokenSet.fromString(e.term)},o.TokenSet.fromFuzzyString=function(e,t){for(var n=new o.TokenSet,r=[{node:n,editsRemaining:t,str:e}];r.length;){var i=r.pop();if(i.str.length>0){var a,s=i.str.charAt(0);s in i.node.edges?a=i.node.edges[s]:(a=new o.TokenSet,i.node.edges[s]=a),1==i.str.length?a.final=!0:r.push({node:a,editsRemaining:i.editsRemaining,str:i.str.slice(1)})}if(i.editsRemaining>0&&i.str.length>1){var c,s=i.str.charAt(1);s in i.node.edges?c=i.node.edges[s]:(c=new o.TokenSet,i.node.edges[s]=c),i.str.length<=2?c.final=!0:r.push({node:c,editsRemaining:i.editsRemaining-1,str:i.str.slice(2)})}if(i.editsRemaining>0&&1==i.str.length&&(i.node.final=!0),i.editsRemaining>0&&i.str.length>=1){if("*"in i.node.edges)var u=i.node.edges["*"];else{var u=new o.TokenSet;i.node.edges["*"]=u}1==i.str.length?u.final=!0:r.push({node:u,editsRemaining:i.editsRemaining-1,str:i.str.slice(1)})}if(i.editsRemaining>0){if("*"in i.node.edges)var l=i.node.edges["*"];else{var l=new o.TokenSet;i.node.edges["*"]=l}0==i.str.length?l.final=!0:r.push({node:l,editsRemaining:i.editsRemaining-1,str:i.str})}if(i.editsRemaining>0&&i.str.length>1){var f,h=i.str.charAt(0),d=i.str.charAt(1);d in i.node.edges?f=i.node.edges[d]:(f=new o.TokenSet,i.node.edges[d]=f),1==i.str.length?f.final=!0:r.push({node:f,editsRemaining:i.editsRemaining-1,str:h+i.str.slice(2)})}}return n},o.TokenSet.fromString=function(e){for(var t=new o.TokenSet,n=t,r=!1,i=0,a=e.length;i<a;i++){var s=e[i],c=i==a-1;if("*"==s)r=!0,t.edges[s]=t,t.final=c;else{var u=new o.TokenSet;u.final=c,t.edges[s]=u,t=u,r&&(t.edges["*"]=n)}}return n},o.TokenSet.prototype.toArray=function(){for(var e=[],t=[{prefix:"",node:this}];t.length;){var n=t.pop(),r=Object.keys(n.node.edges),i=r.length;n.node.final&&e.push(n.prefix);for(var o=0;o<i;o++){var a=r[o];t.push({prefix:n.prefix.concat(a),node:n.node.edges[a]})}}return e},o.TokenSet.prototype.toString=function(){if(this._str)return this._str;for(var e=this.final?"1":"0",t=Object.keys(this.edges).sort(),n=t.length,r=0;r<n;r++){var i=t[r];e=e+i+this.edges[i].id}return e},o.TokenSet.prototype.intersect=function(e){for(var t=new o.TokenSet,n=void 0,r=[{qNode:e,output:t,node:this}];r.length;){n=r.pop();for(var i=Object.keys(n.qNode.edges),a=i.length,s=Object.keys(n.node.edges),c=s.length,u=0;u<a;u++)for(var l=i[u],f=0;f<c;f++){var h=s[f];if(h==l||"*"==l){var d=n.node.edges[h],p=n.qNode.edges[l],m=d.final&&p.final,y=void 0;h in n.output.edges?(y=n.output.edges[h],y.final=y.final||m):(y=new o.TokenSet,y.final=m,n.output.edges[h]=y),r.push({qNode:p,output:y,node:d})}}}return t},o.TokenSet.Builder=function(){this.previousWord="",this.root=new o.TokenSet,this.uncheckedNodes=[],this.minimizedNodes={}},o.TokenSet.Builder.prototype.insert=function(e){var t,n=0;if(e<this.previousWord)throw new Error("Out of order word insertion");for(var r=0;r<e.length&&r<this.previousWord.length&&e[r]==this.previousWord[r];r++)n++;this.minimize(n),t=0==this.uncheckedNodes.length?this.root:this.uncheckedNodes[this.uncheckedNodes.length-1].child;for(var r=n;r<e.length;r++){var i=new o.TokenSet,a=e[r];t.edges[a]=i,this.uncheckedNodes.push({parent:t,char:a,child:i}),t=i}t.final=!0,this.previousWord=e},o.TokenSet.Builder.prototype.finish=function(){this.minimize(0)},o.TokenSet.Builder.prototype.minimize=function(e){for(var t=this.uncheckedNodes.length-1;t>=e;t--){var n=this.uncheckedNodes[t],r=n.child.toString();r in this.minimizedNodes?n.parent.edges[n.char]=this.minimizedNodes[r]:(n.child._str=r,this.minimizedNodes[r]=n.child),this.uncheckedNodes.pop()}},o.Index=function(e){this.invertedIndex=e.invertedIndex,this.fieldVectors=e.fieldVectors,this.tokenSet=e.tokenSet,this.fields=e.fields,this.pipeline=e.pipeline},o.Index.prototype.search=function(e){return this.query(function(t){new o.QueryParser(e,t).parse()})},o.Index.prototype.query=function(e){var t=new o.Query(this.fields),n=Object.create(null),r=Object.create(null);e.call(t,t);for(var i=0;i<t.clauses.length;i++){var a=t.clauses[i],s=null;s=a.usePipeline?this.pipeline.runString(a.term):[a.term];for(var c=0;c<s.length;c++){var u=s[c];a.term=u;for(var l=o.TokenSet.fromClause(a),f=this.tokenSet.intersect(l).toArray(),h=0;h<f.length;h++)for(var d=f[h],p=this.invertedIndex[d],m=p._index,y=0;y<a.fields.length;y++){var v=a.fields[y],g=p[v],w=Object.keys(g);v in r||(r[v]=new o.Vector),r[v].upsert(m,1*a.boost,function(e,t){return e+t});for(var b=0;b<w.length;b++){var _,E,x=w[b],k=new o.FieldRef(x,v);_=g[x],E=new o.MatchData(d,v,_),k in n?n[k].combine(E):n[k]=E}}}}for(var S=Object.keys(n),T={},i=0;i<S.length;i++){var L=o.FieldRef.fromString(S[i]),C=L.docRef,O=this.fieldVectors[L],P=r[L.fieldName].similarity(O);C in T?(T[C].score+=P,T[C].matchData.combine(n[L])):T[C]={ref:C,score:P,matchData:n[L]}}return Object.keys(T).map(function(e){return T[e]}).sort(function(e,t){return t.score-e.score})},o.Index.prototype.toJSON=function(){var e=Object.keys(this.invertedIndex).sort().map(function(e){return[e,this.invertedIndex[e]]},this),t=Object.keys(this.fieldVectors).map(function(e){return[e,this.fieldVectors[e].toJSON()]},this);return{version:o.version,fields:this.fields,fieldVectors:t,invertedIndex:e,pipeline:this.pipeline.toJSON()}},o.Index.load=function(e){var t={},n={},r=e.fieldVectors,i={},a=e.invertedIndex,s=new o.TokenSet.Builder,c=o.Pipeline.load(e.pipeline);e.version!=o.version&&o.utils.warn("Version mismatch when loading serialised index. Current version of lunr '"+o.version+"' does not match serialized index '"+e.version+"'");for(var u=0;u<r.length;u++){var l=r[u],f=l[0],h=l[1];n[f]=new o.Vector(h)}for(var u=0;u<a.length;u++){var l=a[u],d=l[0],p=l[1];s.insert(d),i[d]=p}return s.finish(),t.fields=e.fields,t.fieldVectors=n,t.invertedIndex=i,t.tokenSet=s.root,t.pipeline=c,new o.Index(t)},o.Builder=function(){this._ref="id",this._fields=[],this.invertedIndex=Object.create(null),this.fieldTermFrequencies={},this.fieldLengths={},this.tokenizer=o.tokenizer,this.pipeline=new o.Pipeline,this.searchPipeline=new o.Pipeline,this.documentCount=0,this._b=.75,this._k1=1.2,this.termIndex=0,this.metadataWhitelist=[]},o.Builder.prototype.ref=function(e){this._ref=e},o.Builder.prototype.field=function(e){this._fields.push(e)},o.Builder.prototype.b=function(e){this._b=e<0?0:e>1?1:e},o.Builder.prototype.k1=function(e){this._k1=e},o.Builder.prototype.add=function(e){var t=e[this._ref];this.documentCount+=1;for(var n=0;n<this._fields.length;n++){var r=this._fields[n],i=e[r],a=this.tokenizer(i),s=this.pipeline.run(a),c=new o.FieldRef(t,r),u=Object.create(null);this.fieldTermFrequencies[c]=u,this.fieldLengths[c]=0,this.fieldLengths[c]+=s.length;for(var l=0;l<s.length;l++){var f=s[l];if(void 0==u[f]&&(u[f]=0),u[f]+=1,void 0==this.invertedIndex[f]){var h=Object.create(null);h._index=this.termIndex,this.termIndex+=1;for(var d=0;d<this._fields.length;d++)h[this._fields[d]]=Object.create(null);this.invertedIndex[f]=h}void 0==this.invertedIndex[f][r][t]&&(this.invertedIndex[f][r][t]=Object.create(null));for(var p=0;p<this.metadataWhitelist.length;p++){var m=this.metadataWhitelist[p],y=f.metadata[m];void 0==this.invertedIndex[f][r][t][m]&&(this.invertedIndex[f][r][t][m]=[]),this.invertedIndex[f][r][t][m].push(y)}}}},o.Builder.prototype.calculateAverageFieldLengths=function(){for(var e=Object.keys(this.fieldLengths),t=e.length,n={},r={},i=0;i<t;i++){var a=o.FieldRef.fromString(e[i]),s=a.fieldName;r[s]||(r[s]=0),r[s]+=1,n[s]||(n[s]=0),n[s]+=this.fieldLengths[a]}for(var i=0;i<this._fields.length;i++){var s=this._fields[i];n[s]=n[s]/r[s]}this.averageFieldLength=n},o.Builder.prototype.createFieldVectors=function(){for(var e={},t=Object.keys(this.fieldTermFrequencies),n=t.length,r=0;r<n;r++){for(var i=o.FieldRef.fromString(t[r]),a=i.fieldName,s=this.fieldLengths[i],c=new o.Vector,u=this.fieldTermFrequencies[i],l=Object.keys(u),f=l.length,h=0;h<f;h++){var d=l[h],p=u[d],m=this.invertedIndex[d]._index,y=o.idf(this.invertedIndex[d],this.documentCount),v=y*((this._k1+1)*p)/(this._k1*(1-this._b+this._b*(s/this.averageFieldLength[a]))+p),g=Math.round(1e3*v)/1e3;c.insert(m,g)}e[i]=c}this.fieldVectors=e},o.Builder.prototype.createTokenSet=function(){this.tokenSet=o.TokenSet.fromArray(Object.keys(this.invertedIndex).sort())},o.Builder.prototype.build=function(){return this.calculateAverageFieldLengths(),this.createFieldVectors(),this.createTokenSet(),new o.Index({invertedIndex:this.invertedIndex,fieldVectors:this.fieldVectors,tokenSet:this.tokenSet,fields:this._fields,pipeline:this.searchPipeline})},o.Builder.prototype.use=function(e){var t=Array.prototype.slice.call(arguments,1);t.unshift(this),e.apply(this,t)},o.MatchData=function(e,t,n){for(var r=Object.create(null),i=Object.keys(n),o=0;o<i.length;o++){var a=i[o];r[a]=n[a].slice()}this.metadata=Object.create(null),this.metadata[e]=Object.create(null),this.metadata[e][t]=r},o.MatchData.prototype.combine=function(e){for(var t=Object.keys(e.metadata),n=0;n<t.length;n++){var r=t[n],i=Object.keys(e.metadata[r]);void 0==this.metadata[r]&&(this.metadata[r]=Object.create(null));for(var o=0;o<i.length;o++){var a=i[o],s=Object.keys(e.metadata[r][a]);void 0==this.metadata[r][a]&&(this.metadata[r][a]=Object.create(null));for(var c=0;c<s.length;c++){var u=s[c];void 0==this.metadata[r][a][u]?this.metadata[r][a][u]=e.metadata[r][a][u]:this.metadata[r][a][u]=this.metadata[r][a][u].concat(e.metadata[r][a][u])}}}},o.Query=function(e){this.clauses=[],this.allFields=e},o.Query.wildcard=new String("*"),o.Query.wildcard.NONE=0,o.Query.wildcard.LEADING=1,o.Query.wildcard.TRAILING=2,o.Query.prototype.clause=function(e){return"fields"in e||(e.fields=this.allFields),"boost"in e||(e.boost=1),"usePipeline"in e||(e.usePipeline=!0),"wildcard"in e||(e.wildcard=o.Query.wildcard.NONE),e.wildcard&o.Query.wildcard.LEADING&&e.term.charAt(0)!=o.Query.wildcard&&(e.term="*"+e.term),e.wildcard&o.Query.wildcard.TRAILING&&e.term.slice(-1)!=o.Query.wildcard&&(e.term=e.term+"*"),this.clauses.push(e),this},o.Query.prototype.term=function(e,t){var n=t||{};return n.term=e,this.clause(n),this},o.QueryParseError=function(e,t,n){this.name="QueryParseError",this.message=e,this.start=t,this.end=n},o.QueryParseError.prototype=new Error,o.QueryLexer=function(e){this.lexemes=[],this.str=e,this.length=e.length,this.pos=0,this.start=0,this.escapeCharPositions=[]},o.QueryLexer.prototype.run=function(){for(var e=o.QueryLexer.lexText;e;)e=e(this)},o.QueryLexer.prototype.sliceString=function(){for(var e=[],t=this.start,n=this.pos,r=0;r<this.escapeCharPositions.length;r++)n=this.escapeCharPositions[r],e.push(this.str.slice(t,n)),t=n+1;return e.push(this.str.slice(t,this.pos)),this.escapeCharPositions.length=0,e.join("")},o.QueryLexer.prototype.emit=function(e){this.lexemes.push({type:e,str:this.sliceString(),start:this.start,end:this.pos}),this.start=this.pos},o.QueryLexer.prototype.escapeCharacter=function(){this.escapeCharPositions.push(this.pos-1),this.pos+=1},o.QueryLexer.prototype.next=function(){if(this.pos>=this.length)return o.QueryLexer.EOS;var e=this.str.charAt(this.pos);return this.pos+=1,e},o.QueryLexer.prototype.width=function(){return this.pos-this.start},o.QueryLexer.prototype.ignore=function(){this.start==this.pos&&(this.pos+=1),this.start=this.pos},o.QueryLexer.prototype.backup=function(){this.pos-=1},o.QueryLexer.prototype.acceptDigitRun=function(){var e,t;do{e=this.next(),t=e.charCodeAt(0)}while(t>47&&t<58);e!=o.QueryLexer.EOS&&this.backup()},o.QueryLexer.prototype.more=function(){return this.pos<this.length},o.QueryLexer.EOS="EOS",o.QueryLexer.FIELD="FIELD",o.QueryLexer.TERM="TERM",o.QueryLexer.EDIT_DISTANCE="EDIT_DISTANCE",o.QueryLexer.BOOST="BOOST",o.QueryLexer.lexField=function(e){return e.backup(),e.emit(o.QueryLexer.FIELD),e.ignore(),o.QueryLexer.lexText},o.QueryLexer.lexTerm=function(e){if(e.width()>1&&(e.backup(),e.emit(o.QueryLexer.TERM)),e.ignore(),e.more())return o.QueryLexer.lexText},o.QueryLexer.lexEditDistance=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(o.QueryLexer.EDIT_DISTANCE),o.QueryLexer.lexText},o.QueryLexer.lexBoost=function(e){return 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