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r=this._stack[n],i=[],o=0;o<e.length;o++){var a=r(e[o],o,e);if(void 0!==a&&""!==a)if(Array.isArray(a))for(var s=0;s<a.length;s++)i.push(a[s]);else i.push(a)}e=i}return e},o.Pipeline.prototype.runString=function(e,t){var n=new o.Token(e,t);return this.run([n]).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()||0},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)$/,d=/.$/,h=/(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)$/,_=/^(.+?)(s|t)(ion)$/,E=/^(.+?)e$/,x=/ll$/,b=new RegExp("^"+r+n+"[^aeiouwxy]$"),k=function(n){var r,k,T,S,L,C,M;if(n.length<3)return n;if(T=n.substr(0,1),"y"==T&&(n=T.toUpperCase()+n.substr(1)),S=c,L=u,S.test(n)?n=n.replace(S,"$1$2"):L.test(n)&&(n=n.replace(L,"$1$2")),S=l,L=f,S.test(n)){var O=S.exec(n);S=i,S.test(O[1])&&(S=d,n=n.replace(S,""))}else if(L.test(n)){var O=L.exec(n);r=O[1],L=s,L.test(r)&&(n=r,L=h,C=p,M=m,L.test(n)?n+="e":C.test(n)?(S=d,n=n.replace(S,"")):M.test(n)&&(n+="e"))}if(S=y,S.test(n)){var O=S.exec(n);r=O[1],n=r+"i"}if(S=v,S.test(n)){var O=S.exec(n);r=O[1],k=O[2],S=i,S.test(r)&&(n=r+e[k])}if(S=g,S.test(n)){var O=S.exec(n);r=O[1],k=O[2],S=i,S.test(r)&&(n=r+t[k])}if(S=w,L=_,S.test(n)){var O=S.exec(n);r=O[1],S=o,S.test(r)&&(n=r)}else if(L.test(n)){var O=L.exec(n);r=O[1]+O[2],L=o,L.test(r)&&(n=r)}if(S=E,S.test(n)){var O=S.exec(n);r=O[1],S=o,L=a,C=b,(S.test(r)||L.test(r)&&!C.test(r))&&(n=r)}return S=x,L=o,S.test(n)&&L.test(n)&&(S=d,n=n.replace(S,"")),"y"==T&&(n=T.toLowerCase()+n.substr(1)),n};return function(e){return e.update(k)}}(),o.Pipeline.registerFunction(o.stemmer,"stemmer"),o.generateStopWordFilter=function(e){var t=e.reduce(function(e,t){return e[t]=t,e},{});return function(e){if(e&&t[e.toString()]!==e.toString())return e}},o.stopWordFilter=o.generateStopWordFilter(["a","able","about","across","after","all","almost","also","am","among","an","and","any","are","as","at","be","because","been","but","by","can","cannot","could","dear","did","do","does","either","else","ever","every","for","from","get","got","had","has","have","he","her","hers","him","his","how","however","i","if","in","into","is","it","its","just","least","let","like","likely","may","me","might","most","must","my","neither","no","nor","not","of","off","often","on","only","or","other","our","own","rather","said","say","says","she","should","since","so","some","than","that","the","their","them","then","there","these","they","this","tis","to","too","twas","us","wants","was","we","were","what","when","where","which","while","who","whom","why","will","with","would","yet","you","your"]),o.Pipeline.registerFunction(o.stopWordFilter,"stopWordFilter"),o.trimmer=function(e){return e.update(function(e){return e.replace(/^\W+/,"").replace(/\W+$/,"")})},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,d=i.str.charAt(0),h=i.str.charAt(1);h in i.node.edges?f=i.node.edges[h]:(f=new o.TokenSet,i.node.edges[h]=f),1==i.str.length?f.final=!0:r.push({node:f,editsRemaining:i.editsRemaining-1,str:d+i.str.slice(2)})}}return n},o.TokenSet.fromString=function(e){for(var t=new o.TokenSet,n=t,r=0,i=e.length;r<i;r++){var a=e[r],s=r==i-1;if("*"==a)t.edges[a]=t,t.final=s;else{var c=new o.TokenSet;c.final=s,t.edges[a]=c,t=c}}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&&(n.prefix.charAt(0),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 d=s[f];if(d==l||"*"==l){var h=n.node.edges[d],p=n.qNode.edges[l],m=h.final&&p.final,y=void 0;d in n.output.edges?(y=n.output.edges[d],y.final=y.final||m):(y=new o.TokenSet,y.final=m,n.output.edges[d]=y),r.push({qNode:p,output:y,node:h})}}}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){for(var t=new o.Query(this.fields),n=Object.create(null),r=Object.create(null),i=Object.create(null),a=Object.create(null),s=Object.create(null),c=0;c<this.fields.length;c++)r[this.fields[c]]=new o.Vector;e.call(t,t);for(var c=0;c<t.clauses.length;c++){var u=t.clauses[c],l=null,f=o.Set.complete;l=u.usePipeline?this.pipeline.runString(u.term,{fields:u.fields}):[u.term];for(var d=0;d<l.length;d++){var h=l[d];u.term=h;var p=o.TokenSet.fromClause(u),m=this.tokenSet.intersect(p).toArray();if(0===m.length&&u.presence===o.Query.presence.REQUIRED){for(var y=0;y<u.fields.length;y++){var v=u.fields[y];a[v]=o.Set.empty}break}for(var g=0;g<m.length;g++)for(var w=m[g],_=this.invertedIndex[w],E=_._index,y=0;y<u.fields.length;y++){var v=u.fields[y],x=_[v],b=Object.keys(x),k=w+"/"+v,T=new o.Set(b);if(u.presence==o.Query.presence.REQUIRED&&(f=f.union(T),void 0===a[v]&&(a[v]=o.Set.complete)),u.presence!=o.Query.presence.PROHIBITED){if(r[v].upsert(E,u.boost,function(e,t){return e+t}),!i[k]){for(var S=0;S<b.length;S++){var L,C=b[S],M=new o.FieldRef(C,v),O=x[C];void 0===(L=n[M])?n[M]=new o.MatchData(w,v,O):L.add(w,v,O)}i[k]=!0}}else void 0===s[v]&&(s[v]=o.Set.empty),s[v]=s[v].union(T)}}if(u.presence===o.Query.presence.REQUIRED)for(var y=0;y<u.fields.length;y++){var v=u.fields[y];a[v]=a[v].intersect(f)}}for(var R=o.Set.complete,P=o.Set.empty,c=0;c<this.fields.length;c++){var v=this.fields[c];a[v]&&(R=R.intersect(a[v])),s[v]&&(P=P.union(s[v]))}var A=Object.keys(n),Q=[],I=Object.create(null);if(t.isNegated()){A=Object.keys(this.fieldVectors);for(var c=0;c<A.length;c++){var M=A[c],N=o.FieldRef.fromString(M);n[M]=new o.MatchData}}for(var c=0;c<A.length;c++){var N=o.FieldRef.fromString(A[c]),j=N.docRef;if(R.contains(j)&&!P.contains(j)){var F,H=this.fieldVectors[N],q=r[N.fieldName].similarity(H);if(void 0!==(F=I[j]))F.score+=q,F.matchData.combine(n[N]);else{var D={ref:j,score:q,matchData:n[N]};I[j]=D,Q.push(D)}}}return Q.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=Object.create(null),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],d=l[1];n[f]=new o.Vector(d)}for(var u=0;u<a.length;u++){var l=a[u],h=l[0],p=l[1];s.insert(h),i[h]=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=Object.create(null),this._documents=Object.create(null),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,t){if(/\//.test(e))throw new RangeError("Field '"+e+"' contains illegal character '/'");this._fields[e]=t||{}},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,t){var n=e[this._ref],r=Object.keys(this._fields);this._documents[n]=t||{},this.documentCount+=1;for(var i=0;i<r.length;i++){var a=r[i],s=this._fields[a].extractor,c=s?s(e):e[a],u=this.tokenizer(c,{fields:[a]}),l=this.pipeline.run(u),f=new o.FieldRef(n,a),d=Object.create(null);this.fieldTermFrequencies[f]=d,this.fieldLengths[f]=0,this.fieldLengths[f]+=l.length;for(var h=0;h<l.length;h++){var p=l[h];if(void 0==d[p]&&(d[p]=0),d[p]+=1,void 0==this.invertedIndex[p]){var m=Object.create(null);m._index=this.termIndex,this.termIndex+=1;for(var y=0;y<r.length;y++)m[r[y]]=Object.create(null);this.invertedIndex[p]=m}void 0==this.invertedIndex[p][a][n]&&(this.invertedIndex[p][a][n]=Object.create(null));for(var v=0;v<this.metadataWhitelist.length;v++){var g=this.metadataWhitelist[v],w=p.metadata[g];void 0==this.invertedIndex[p][a][n][g]&&(this.invertedIndex[p][a][n][g]=[]),this.invertedIndex[p][a][n][g].push(w)}}}},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 c=Object.keys(this._fields),i=0;i<c.length;i++){var u=c[i];n[u]=n[u]/r[u]}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),d=f.length,h=this._fields[s].boost||1,p=this._documents[a.docRef].boost||1,m=0;m<d;m++){var y,v,g,w=f[m],_=l[w],E=this.invertedIndex[w]._index;void 0===r[w]?(y=o.idf(this.invertedIndex[w],this.documentCount),r[w]=y):y=r[w],v=y*((this._k1+1)*_)/(this._k1*(1-this._b+this._b*(c/this.averageFieldLength[s]))+_),v*=h,v*=p,g=Math.round(1e3*v)/1e3,u.insert(E,g)}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:Object.keys(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),void 0!==e&&(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.presence={OPTIONAL:1,REQUIRED:2,PROHIBITED:3},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+"*"),"presence"in e||(e.presence=o.Query.presence.OPTIONAL),this.clauses.push(e),this},o.Query.prototype.isNegated=function(){for(var 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