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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.insert=function(e,t){if(this._magnitude=0,0==this.elements.length)return void this.elements.push(e,t);for(var n=0,r=this.elements.length,i=r-n,o=2*Math.floor(i/2/2),a=this.elements[o];i>2;){if(a==e)throw"duplicate index";e>a&&(n=o),e<a&&(r=o),i=r-n,o=n+2*Math.floor(i/2/2),a=this.elements[o]}a>e&&this.elements.splice(o,0,e,t),a<e&&this.elements.splice(o+2,0,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="[^aeiou]",r="[aeiouy]",i=n+"[^aeiouy]*",o=r+"[aeiou]*",a="^("+i+")?"+o+i,s="^("+i+")?"+o+i+"("+o+")?$",c="^("+i+")?"+o+i+o+i,u="^("+i+")?"+r,l=new RegExp(a),f=new RegExp(c),h=new RegExp(s),d=new RegExp(u),p=/^(.+?)(ss|i)es$/,m=/^(.+?)([^s])s$/,y=/^(.+?)eed$/,v=/^(.+?)(ed|ing)$/,g=/.$/,w=/(at|bl|iz)$/,b=new RegExp("([^aeiouylsz])\\1$"),x=new RegExp("^"+i+r+"[^aeiouwxy]$"),_=/^(.+?[^aeiou])y$/,E=/^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/,k=/^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/,S=/^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/,T=/^(.+?)(s|t)(ion)$/,L=/^(.+?)e$/,C=/ll$/,O=new RegExp("^"+i+r+"[^aeiouwxy]$"),P=function(n){var r,i,o,a,s,c,u;if(n.length<3)return n;if(o=n.substr(0,1),"y"==o&&(n=o.toUpperCase()+n.substr(1)),a=p,s=m,a.test(n)?n=n.replace(a,"$1$2"):s.test(n)&&(n=n.replace(s,"$1$2")),a=y,s=v,a.test(n)){var P=a.exec(n);a=l,a.test(P[1])&&(a=g,n=n.replace(a,""))}else if(s.test(n)){var P=s.exec(n);r=P[1],s=d,s.test(r)&&(n=r,s=w,c=b,u=x,s.test(n)?n+="e":c.test(n)?(a=g,n=n.replace(a,"")):u.test(n)&&(n+="e"))}if(a=_,a.test(n)){var P=a.exec(n);r=P[1],n=r+"i"}if(a=E,a.test(n)){var P=a.exec(n);r=P[1],i=P[2],a=l,a.test(r)&&(n=r+e[i])}if(a=k,a.test(n)){var P=a.exec(n);r=P[1],i=P[2],a=l,a.test(r)&&(n=r+t[i])}if(a=S,s=T,a.test(n)){var P=a.exec(n);r=P[1],a=f,a.test(r)&&(n=r)}else if(s.test(n)){var P=s.exec(n);r=P[1]+P[2],s=f,s.test(r)&&(n=r)}if(a=L,a.test(n)){var P=a.exec(n);r=P[1],a=f,s=h,c=O,(a.test(r)||s.test(r)&&!c.test(r))&&(n=r)}return a=C,s=f,a.test(n)&&s.test(n)&&(a=g,n=n.replace(a,"")),"y"==o&&(n=o.toLowerCase()+n.substr(1)),n};return function(e){return e.update(P)}}(),o.Pipeline.registerFunction(o.stemmer,"stemmer"),o.generateStopWordFilter=function(e){var t=e.reduce(function(e,t){return e[t]=t,e},{});return function(e){if(e&&t[e.toString()]!==e.toString())return e}},o.stopWordFilter=o.generateStopWordFilter(["a","able","about","across","after","all","almost","also","am","among","an","and","any","are","as","at","be","because","been","but","by","can","cannot","could","dear","did","do","does","either","else","ever","every","for","from","get","got","had","has","have","he","her","hers","him","his","how","however","i","if","in","into","is","it","its","just","least","let","like","likely","may","me","might","most","must","my","neither","no","nor","not","of","off","often","on","only","or","other","our","own","rather","said","say","says","she","should","since","so","some","than","that","the","their","them","then","there","these","they","this","tis","to","too","twas","us","wants","was","we","were","what","when","where","which","while","who","whom","why","will","with","would","yet","you","your"]),o.Pipeline.registerFunction(o.stopWordFilter,"stopWordFilter"),o.trimmer=function(e){return e.update(function(e){return e.replace(/^\W+/,"").replace(/\W+$/,"")})},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],o=this.edges[i];e=e+i+o.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.documentVectors=e.documentVectors,this.tokenSet=e.tokenSet,this.documentCount=e.documentCount,this.averageDocumentLength=e.averageDocumentLength,this.b=e.b,this.k1=e.k1,this.fields=e.fields,this.pipeline=e.pipeline},o.Index.prototype.search=function(e){return this.query(function(t){var n=new o.QueryParser(e,t);n.parse()})},o.Index.prototype.query=function(e){var t=new o.Query(this.fields),n=Object.create(null),r=new o.Vector;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++){var d=f[h],p=this.invertedIndex[d],m=p._index,y=o.idf(p,this.documentCount),v=1,g=y*((this.k1+1)*v)/(this.k1*(1-this.b+this.b*(t.clauses.length/this.averageDocumentLength))+v);r.insert(m,g*a.boost);for(var w=0;w<a.fields.length;w++)for(var b=a.fields[w],x=p[b],_=Object.keys(x),E=0;E<_.length;E++){var k,S,T=_[E];k=x[T],S=new o.MatchData(d,b,k),T in n?n[T].combine(S):n[T]=S}}}}for(var _=Object.keys(n),L=[],i=0;i<_.length;i++){var C=_[i],O=this.documentVectors[C],g=r.similarity(O);L.push({ref:C,score:g,matchData:n[C]})}return L.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.documentVectors).map(function(e){return[e,this.documentVectors[e].toJSON()]},this);return{version:o.version,averageDocumentLength:this.averageDocumentLength,b:this.b,k1:this.k1,fields:this.fields,documentVectors:t,invertedIndex:e,pipeline:this.pipeline.toJSON()}},o.Index.load=function(e){var t={},n={},r=e.documentVectors,i=0,a={},s=e.invertedIndex,c=new o.TokenSet.Builder,u=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 l=0;l<r.length;l++,i++){var f=r[l],h=f[0],d=f[1];n[h]=new o.Vector(d)}for(var l=0;l<s.length;l++){var f=s[l],p=f[0],m=f[1];c.insert(p),a[p]=m}return c.finish(),t.b=e.b,t.k1=e.k1,t.fields=e.fields,t.averageDocumentLength=e.averageDocumentLength,t.documentCount=i,t.documentVectors=n,t.invertedIndex=a,t.tokenSet=c.root,t.pipeline=u,new o.Index(t)},o.Builder=function(){this._ref="id",this._fields=[],this.invertedIndex=Object.create(null),this.documentTermFrequencies={},this.documentLengths={},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){e<0?this._b=0:e>1?this._b=1:this._b=e},o.Builder.prototype.k1=function(e){this._k1=e},o.Builder.prototype.add=function(e){var t=e[this._ref],n={};this.documentCount+=1,this.documentTermFrequencies[t]=n,this.documentLengths[t]=0;for(var r=0;r<this._fields.length;r++){var i=this._fields[r],o=e[i],a=this.tokenizer(o),s=this.pipeline.run(a);this.documentLengths[t]+=s.length;for(var c=0;c<s.length;c++){var u=s[c];if(void 0==n[u]&&(n[u]=0),n[u]+=1,void 0==this.invertedIndex[u]){var l=Object.create(null);l._index=this.termIndex,this.termIndex+=1;for(var f=0;f<this._fields.length;f++)l[this._fields[f]]=Object.create(null);this.invertedIndex[u]=l}void 0==this.invertedIndex[u][i][t]&&(this.invertedIndex[u][i][t]=Object.create(null));for(var h=0;h<this.metadataWhitelist.length;h++){var d=this.metadataWhitelist[h],p=u.metadata[d];void 0==this.invertedIndex[u][i][t][d]&&(this.invertedIndex[u][i][t][d]=[]),this.invertedIndex[u][i][t][d].push(p)}}}},o.Builder.prototype.calculateAverageDocumentLengths=function(){for(var e=Object.keys(this.documentLengths),t=e.length,n=0,r=0;r<t;r++){var i=e[r];n+=this.documentLengths[i]}this.averageDocumentLength=n/t},o.Builder.prototype.createDocumentVectors=function(){for(var e={},t=Object.keys(this.documentTermFrequencies),n=t.length,r=0;r<n;r++){for(var i=t[r],a=this.documentLengths[i],s=new o.Vector,c=this.documentTermFrequencies[i],u=Object.keys(c),l=u.length,f=0;f<l;f++){var h=u[f],d=c[h],p=this.invertedIndex[h]._index,m=o.idf(this.invertedIndex[h],this.documentCount),y=m*((this._k1+1)*d)/(this._k1*(1-this._b+this._b*(a/this.averageDocumentLength))+d),v=Math.round(1e3*y)/1e3;s.insert(p,v)}e[i]=s}this.documentVectors=e},o.Builder.prototype.createTokenSet=function(){this.tokenSet=o.TokenSet.fromArray(Object.keys(this.invertedIndex).sort())},o.Builder.prototype.build=function(){return this.calculateAverageDocumentLengths(),this.createDocumentVectors(),this.createTokenSet(),new o.Index({invertedIndex:this.invertedIndex,documentVectors:this.documentVectors,tokenSet:this.tokenSet,averageDocumentLength:this.averageDocumentLength,documentCount:this.documentCount,fields:this._fields,pipeline:this.searchPipeline,b:this._b,k1:this._k1})},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){this.metadata={},this.metadata[e]={},this.metadata[e][t]=n},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]={});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]={});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.prototype.clause=function(e){return"fields"in e||(e.fields=this.allFields),"boost"in e||(e.boost=1),"usePipeline"in e||(e.usePipeline=!0),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},o.QueryLexer.prototype.run=function(){for(var e=o.QueryLexer.lexText;e;)e=e(this)},o.QueryLexer.prototype.emit=function(e){this.lexemes.push({type:e,str:this.str.slice(this.start,this.pos),start:this.start,end:this.pos}),this.start=this.pos},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 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