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r=this._stack[n];e=e.reduce(function(t,n,i){var o=r(n,i,e);return void 0===o||""===o?t:t.concat(o)},[])}return e},o.Pipeline.prototype.runString=function(e){var t=new o.Token(e);return this.run([t]).map(function(e){return e.toString()})},o.Pipeline.prototype.reset=function(){this._stack=[]},o.Pipeline.prototype.toJSON=function(){return this._stack.map(function(e){return o.Pipeline.warnIfFunctionNotRegistered(e),e.label})},o.Vector=function(e){this._magnitude=0,this.elements=e||[]},o.Vector.prototype.positionForIndex=function(e){if(0==this.elements.length)return 0;for(var t=0,n=this.elements.length/2,r=n-t,i=Math.floor(r/2),o=this.elements[2*i];r>1&&(o<e&&(t=i),o>e&&(n=i),o!=e);)r=n-t,i=t+Math.floor(r/2),o=this.elements[2*i];return o==e?2*i:o>e?2*i:o<e?2*(i+1):void 0},o.Vector.prototype.insert=function(e,t){this.upsert(e,t,function(){throw"duplicate index"})},o.Vector.prototype.upsert=function(e,t,n){this._magnitude=0;var 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$/,x=/ll$/,_=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$2")),T=l,L=f,T.test(n)){var P=T.exec(n);T=i,T.test(P[1])&&(T=h,n=n.replace(T,""))}else if(L.test(n)){var P=L.exec(n);r=P[1],L=s,L.test(r)&&(n=r,L=d,C=p,O=m,L.test(n)?n+="e":C.test(n)?(T=h,n=n.replace(T,"")):O.test(n)&&(n+="e"))}if(T=y,T.test(n)){var P=T.exec(n);r=P[1],n=r+"i"}if(T=v,T.test(n)){var P=T.exec(n);r=P[1],k=P[2],T=i,T.test(r)&&(n=r+e[k])}if(T=g,T.test(n)){var P=T.exec(n);r=P[1],k=P[2],T=i,T.test(r)&&(n=r+t[k])}if(T=w,L=b,T.test(n)){var P=T.exec(n);r=P[1],T=o,T.test(r)&&(n=r)}else if(L.test(n)){var P=L.exec(n);r=P[1]+P[2],L=o,L.test(r)&&(n=r)}if(T=E,T.test(n)){var P=T.exec(n);r=P[1],T=o,L=a,C=_,(T.test(r)||L.test(r)&&!C.test(r))&&(n=r)}return T=x,L=o,T.test(n)&&L.test(n)&&(T=h,n=n.replace(T,"")),"y"==S&&(n=S.toLowerCase()+n.substr(1)),n};return function(e){return e.update(k)}}(),o.Pipeline.registerFunction(o.stemmer,"stemmer"),o.generateStopWordFilter=function(e){var t=e.reduce(function(e,t){return e[t]=t,e},{});return function(e){if(e&&t[e.toString()]!==e.toString())return e}},o.stopWordFilter=o.generateStopWordFilter(["a","able","about","across","after","all","almost","also","am","among","an","and","any","are","as","at","be","because","been","but","by","can","cannot","could","dear","did","do","does","either","else","ever","every","for","from","get","got","had","has","have","he","her","hers","him","his","how","however","i","if","in","into","is","it","its","just","least","let","like","likely","may","me","might","most","must","my","neither","no","nor","not","of","off","often","on","only","or","other","our","own","rather","said","say","says","she","should","since","so","some","than","that","the","their","them","then","there","these","they","this","tis","to","too","twas","us","wants","was","we","were","what","when","where","which","while","who","whom","why","will","with","would","yet","you","your"]),o.Pipeline.registerFunction(o.stopWordFilter,"stopWordFilter"),o.trimmer=function(e){return e.update(function(e){return e.replace(/^\W+/,"").replace(/\W+$/,"")})},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),i=Object.create(null);e.call(t,t);for(var a=0;a<t.clauses.length;a++){var s=t.clauses[a],c=null;c=s.usePipeline?this.pipeline.runString(s.term):[s.term];for(var u=0;u<c.length;u++){var l=c[u];s.term=l;for(var f=o.TokenSet.fromClause(s),h=this.tokenSet.intersect(f).toArray(),d=0;d<h.length;d++)for(var p=h[d],m=this.invertedIndex[p],y=m._index,v=0;v<s.fields.length;v++){var g=s.fields[v],w=m[g],b=Object.keys(w),E=p+"/"+g;if(void 0===r[g]&&(r[g]=new o.Vector),r[g].upsert(y,1*s.boost,function(e,t){return e+t}),!i[E]){for(var x=0;x<b.length;x++){var _,k=b[x],S=new o.FieldRef(k,g),T=w[k];void 0===(_=n[S])?n[S]=new o.MatchData(p,g,T):_.add(p,l,T)}i[E]=!0}}}}for(var L=Object.keys(n),C=[],O=Object.create(null),a=0;a<L.length;a++){var P,A=o.FieldRef.fromString(L[a]),M=A.docRef,R=this.fieldVectors[A],j=r[A.fieldName].similarity(R);if(void 0!==(P=O[M]))P.score+=j,P.matchData.combine(n[A]);else{var I={ref:M,score:j,matchData:n[A]};O[M]=I,C.push(I)}}return C.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=Object.create(null),i=0;i<n;i++){for(var a=o.FieldRef.fromString(t[i]),s=a.fieldName,c=this.fieldLengths[a],u=new o.Vector,l=this.fieldTermFrequencies[a],f=Object.keys(l),h=f.length,d=0;d<h;d++){var p,m,y,v=f[d],g=l[v],w=this.invertedIndex[v]._index;void 0===r[v]?(p=o.idf(this.invertedIndex[v],this.documentCount),r[v]=p):p=r[v],m=p*((this._k1+1)*g)/(this._k1*(1-this._b+this._b*(c/this.averageFieldLength[s]))+g),y=Math.round(1e3*m)/1e3,u.insert(w,y)}e[a]=u}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.MatchData.prototype.add=function(e,t,n){if(!(e in this.metadata))return this.metadata[e]=Object.create(null),void(this.metadata[e][t]=n);if(!(t in this.metadata[e]))return void(this.metadata[e][t]=n);for(var r=Object.keys(n),i=0;i<r.length;i++){var o=r[i];o in this.metadata[e][t]?this.metadata[e][t][o]=this.metadata[e][t][o].concat(n[o]):this.metadata[e][t][o]=n[o]}},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 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