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html-XN2TSG4M.js (59951B)

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n},e.TokenSet.Builder=function(){this.previousWord="",this.root=new e.TokenSet,this.uncheckedNodes=[],this.minimizedNodes={}},e.TokenSet.Builder.prototype.insert=function(t){var n,i=0;if(t<this.previousWord)throw new Error("Out of order word insertion");for(var r=0;r<t.length&&r<this.previousWord.length&&t[r]==this.previousWord[r];r++)i++;this.minimize(i),this.uncheckedNodes.length==0?n=this.root:n=this.uncheckedNodes[this.uncheckedNodes.length-1].child;for(var r=i;r<t.length;r++){var s=new e.TokenSet,o=t[r];n.edges[o]=s,this.uncheckedNodes.push({parent:n,char:o,child:s}),n=s}n.final=!0,this.previousWord=t},e.TokenSet.Builder.prototype.finish=function(){this.minimize(0)},e.TokenSet.Builder.prototype.minimize=function(t){for(var n=this.uncheckedNodes.length-1;n>=t;n--){var i=this.uncheckedNodes[n],r=i.child.toString();r in this.minimizedNodes?i.parent.edges[i.char]=this.minimizedNodes[r]:(i.child._str=r,this.minimizedNodes[r]=i.child),this.uncheckedNodes.pop()}};e.Index=function(t){this.invertedIndex=t.invertedIndex,this.fieldVectors=t.fieldVectors,this.tokenSet=t.tokenSet,this.fields=t.fields,this.pipeline=t.pipeline},e.Index.prototype.search=function(t){return this.query(function(n){var i=new e.QueryParser(t,n);i.parse()})},e.Index.prototype.query=function(t){for(var n=new e.Query(this.fields),i=Object.create(null),r=Object.create(null),s=Object.create(null),o=Object.create(null),a=Object.create(null),u=0;u<this.fields.length;u++)r[this.fields[u]]=new e.Vector;t.call(n,n);for(var u=0;u<n.clauses.length;u++){var l=n.clauses[u],f=null,y=e.Set.empty;l.usePipeline?f=this.pipeline.runString(l.term,{fields:l.fields}):f=[l.term];for(var g=0;g<f.length;g++){var L=f[g];l.term=L;var S=e.TokenSet.fromClause(l),T=this.tokenSet.intersect(S).toArray();if(T.length===0&&l.presence===e.Query.presence.REQUIRED){for(var m=0;m<l.fields.length;m++){var p=l.fields[m];o[p]=e.Set.empty}break}for(var _=0;_<T.length;_++)for(var w=T[_],Q=this.invertedIndex[w],N=Q._index,m=0;m<l.fields.length;m++){var p=l.fields[m],x=Q[p],C=Object.keys(x),D=w+"/"+p,V=new e.Set(C);if(l.presence==e.Query.presence.REQUIRED&&(y=y.union(V),o[p]===void 0&&(o[p]=e.Set.complete)),l.presence==e.Query.presence.PROHIBITED){a[p]===void 0&&(a[p]=e.Set.empty),a[p]=a[p].union(V);continue}if(r[p].upsert(N,l.boost,function(On,In){return On+In}),!s[D]){for(var ne=0;ne<C.length;ne++){var ce=C[ne],j=new e.FieldRef(ce,p),le=x[ce],ue;(ue=i[j])===void 0?i[j]=new e.MatchData(w,p,le):ue.add(w,p,le)}s[D]=!0}}}if(l.presence===e.Query.presence.REQUIRED)for(var m=0;m<l.fields.length;m++){var p=l.fields[m];o[p]=o[p].intersect(y)}}for(var ie=e.Set.complete,W=e.Set.empty,u=0;u<this.fields.length;u++){var p=this.fields[u];o[p]&&(ie=ie.intersect(o[p])),a[p]&&(W=W.union(a[p]))}var d=Object.keys(i),v=[],q=Object.create(null);if(n.isNegated()){d=Object.keys(this.fieldVectors);for(var u=0;u<d.length;u++){var j=d[u],A=e.FieldRef.fromString(j);i[j]=new e.MatchData}}for(var u=0;u<d.length;u++){var A=e.FieldRef.fromString(d[u]),h=A.docRef;if(!!ie.contains(h)&&!W.contains(h)){var E=this.fieldVectors[A],z=r[A.fieldName].similarity(E),G;if((G=q[h])!==void 0)G.score+=z,G.matchData.combine(i[A]);else{var b={ref:h,score:z,matchData:i[A]};q[h]=b,v.push(b)}}}return v.sort(function(kn,_n){return _n.score-kn.score})},e.Index.prototype.toJSON=function(){var t=Object.keys(this.invertedIndex).sort().map(function(i){return[i,this.invertedIndex[i]]},this),n=Object.keys(this.fieldVectors).map(function(i){return[i,this.fieldVectors[i].toJSON()]},this);return{version:e.version,fields:this.fields,fieldVectors:n,invertedIndex:t,pipeline:this.pipeline.toJSON()}},e.Index.load=function(t){var n={},i={},r=t.fieldVectors,s=Object.create(null),o=t.invertedIndex,a=new e.TokenSet.Builder,u=e.Pipeline.load(t.pipeline);t.version!=e.version&&e.utils.warn("Version mismatch when loading serialised index. Current version of lunr '"+e.version+"' does not match serialized index '"+t.version+"'");for(var l=0;l<r.length;l++){var f=r[l],y=f[0],g=f[1];i[y]=new e.Vector(g)}for(var l=0;l<o.length;l++){var f=o[l],L=f[0],S=f[1];a.insert(L),s[L]=S}return a.finish(),n.fields=t.fields,n.fieldVectors=i,n.invertedIndex=s,n.tokenSet=a.root,n.pipeline=u,new e.Index(n)};e.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=e.tokenizer,this.pipeline=new e.Pipeline,this.searchPipeline=new e.Pipeline,this.documentCount=0,this._b=.75,this._k1=1.2,this.termIndex=0,this.metadataWhitelist=[]},e.Builder.prototype.ref=function(t){this._ref=t},e.Builder.prototype.field=function(t,n){if(/\//.test(t))throw new RangeError("Field '"+t+"' contains illegal character '/'");this._fields[t]=n||{}},e.Builder.prototype.b=function(t){t<0?this._b=0:t>1?this._b=1:this._b=t},e.Builder.prototype.k1=function(t){this._k1=t},e.Builder.prototype.add=function(t,n){var i=t[this._ref],r=Object.keys(this._fields);this._documents[i]=n||{},this.documentCount+=1;for(var s=0;s<r.length;s++){var o=r[s],a=this._fields[o].extractor,u=a?a(t):t[o],l=this.tokenizer(u,{fields:[o]}),f=this.pipeline.run(l),y=new e.FieldRef(i,o),g=Object.create(null);this.fieldTermFrequencies[y]=g,this.fieldLengths[y]=0,this.fieldLengths[y]+=f.length;for(var L=0;L<f.length;L++){var S=f[L];if(g[S]==null&&(g[S]=0),g[S]+=1,this.invertedIndex[S]==null){var T=Object.create(null);T._index=this.termIndex,this.termIndex+=1;for(var m=0;m<r.length;m++)T[r[m]]=Object.create(null);this.invertedIndex[S]=T}this.invertedIndex[S][o][i]==null&&(this.invertedIndex[S][o][i]=Object.create(null));for(var p=0;p<this.metadataWhitelist.length;p++){var _=this.metadataWhitelist[p],w=S.metadata[_];this.invertedIndex[S][o][i][_]==null&&(this.invertedIndex[S][o][i][_]=[]),this.invertedIndex[S][o][i][_].push(w)}}}},e.Builder.prototype.calculateAverageFieldLengths=function(){for(var t=Object.keys(this.fieldLengths),n=t.length,i={},r={},s=0;s<n;s++){var o=e.FieldRef.fromString(t[s]),a=o.fieldName;r[a]||(r[a]=0),r[a]+=1,i[a]||(i[a]=0),i[a]+=this.fieldLengths[o]}for(var u=Object.keys(this._fields),s=0;s<u.length;s++){var l=u[s];i[l]=i[l]/r[l]}this.averageFieldLength=i},e.Builder.prototype.createFieldVectors=function(){for(var t={},n=Object.keys(this.fieldTermFrequencies),i=n.length,r=Object.create(null),s=0;s<i;s++){for(var o=e.FieldRef.fromString(n[s]),a=o.fieldName,u=this.fieldLengths[o],l=new e.Vector,f=this.fieldTermFrequencies[o],y=Object.keys(f),g=y.length,L=this._fields[a].boost||1,S=this._documents[o.docRef].boost||1,T=0;T<g;T++){var m=y[T],p=f[m],_=this.invertedIndex[m]._index,w,Q,N;r[m]===void 0?(w=e.idf(this.invertedIndex[m],this.documentCount),r[m]=w):w=r[m],Q=w*((this._k1+1)*p)/(this._k1*(1-this._b+this._b*(u/this.averageFieldLength[a]))+p),Q*=L,Q*=S,N=Math.round(Q*1e3)/1e3,l.insert(_,N)}t[o]=l}this.fieldVectors=t},e.Builder.prototype.createTokenSet=function(){this.tokenSet=e.TokenSet.fromArray(Object.keys(this.invertedIndex).sort())},e.Builder.prototype.build=function(){return this.calculateAverageFieldLengths(),this.createFieldVectors(),this.createTokenSet(),new e.Index({invertedIndex:this.invertedIndex,fieldVectors:this.fieldVectors,tokenSet:this.tokenSet,fields:Object.keys(this._fields),pipeline:this.searchPipeline})},e.Builder.prototype.use=function(t){var n=Array.prototype.slice.call(arguments,1);n.unshift(this),t.apply(this,n)},e.MatchData=function(t,n,i){for(var r=Object.create(null),s=Object.keys(i||{}),o=0;o<s.length;o++){var a=s[o];r[a]=i[a].slice()}this.metadata=Object.create(null),t!==void 0&&(this.metadata[t]=Object.create(null),this.metadata[t][n]=r)},e.MatchData.prototype.combine=function(t){for(var n=Object.keys(t.metadata),i=0;i<n.length;i++){var r=n[i],s=Object.keys(t.metadata[r]);this.metadata[r]==null&&(this.metadata[r]=Object.create(null));for(var o=0;o<s.length;o++){var a=s[o],u=Object.keys(t.metadata[r][a]);this.metadata[r][a]==null&&(this.metadata[r][a]=Object.create(null));for(var l=0;l<u.length;l++){var f=u[l];this.metadata[r][a][f]==null?this.metadata[r][a][f]=t.metadata[r][a][f]:this.metadata[r][a][f]=this.metadata[r][a][f].concat(t.metadata[r][a][f])}}}},e.MatchData.prototype.add=function(t,n,i){if(!(t in this.metadata)){this.metadata[t]=Object.create(null),this.metadata[t][n]=i;return}if(!(n in this.metadata[t])){this.metadata[t][n]=i;return}for(var r=Object.keys(i),s=0;s<r.length;s++){var o=r[s];o in this.metadata[t][n]?this.metadata[t][n][o]=this.metadata[t][n][o].concat(i[o]):this.metadata[t][n][o]=i[o]}},e.Query=function(t){this.clauses=[],this.allFields=t},e.Query.wildcard=new String("*"),e.Query.wildcard.NONE=0,e.Query.wildcard.LEADING=1,e.Query.wildcard.TRAILING=2,e.Query.presence={OPTIONAL:1,REQUIRED:2,PROHIBITED:3},e.Query.prototype.clause=function(t){return"fields"in t||(t.fields=this.allFields),"boost"in t||(t.boost=1),"usePipeline"in t||(t.usePipeline=!0),"wildcard"in t||(t.wildcard=e.Query.wildcard.NONE),t.wildcard&e.Query.wildcard.LEADING&&t.term.charAt(0)!=e.Query.wildcard&&(t.term="*"+t.term),t.wildcard&e.Query.wildcard.TRAILING&&t.term.slice(-1)!=e.Query.wildcard&&(t.term=""+t.term+"*"),"presence"in t||(t.presence=e.Query.presence.OPTIONAL),this.clauses.push(t),this},e.Query.prototype.isNegated=function(){for(var t=0;t<this.clauses.length;t++)if(this.clauses[t].presence!=e.Query.presence.PROHIBITED)return!1;return!0},e.Query.prototype.term=function(t,n){if(Array.isArray(t))return t.forEach(function(r){this.term(r,e.utils.clone(n))},this),this;var i=n||{};return i.term=t.toString(),this.clause(i),this},e.QueryParseError=function(t,n,i){this.name="QueryParseError",this.message=t,this.start=n,this.end=i},e.QueryParseError.prototype=new Error,e.QueryLexer=function(t){this.lexemes=[],this.str=t,this.length=t.length,this.pos=0,this.start=0,this.escapeCharPositions=[]},e.QueryLexer.prototype.run=function(){for(var t=e.QueryLexer.lexText;t;)t=t(this)},e.QueryLexer.prototype.sliceString=function(){for(var t=[],n=this.start,i=this.pos,r=0;r<this.escapeCharPositions.length;r++)i=this.escapeCharPositions[r],t.push(this.str.slice(n,i)),n=i+1;return t.push(this.str.slice(n,this.pos)),this.escapeCharPositions.length=0,t.join("")},e.QueryLexer.prototype.emit=function(t){this.lexemes.push({type:t,str:this.sliceString(),start:this.start,end:this.pos}),this.start=this.pos},e.QueryLexer.prototype.escapeCharacter=function(){this.escapeCharPositions.push(this.pos-1),this.pos+=1},e.QueryLexer.prototype.next=function(){if(this.pos>=this.length)return e.QueryLexer.EOS;var t=this.str.charAt(this.pos);return this.pos+=1,t},e.QueryLexer.prototype.width=function(){return this.pos-this.start},e.QueryLexer.prototype.ignore=function(){this.start==this.pos&&(this.pos+=1),this.start=this.pos},e.QueryLexer.prototype.backup=function(){this.pos-=1},e.QueryLexer.prototype.acceptDigitRun=function(){var t,n;do t=this.next(),n=t.charCodeAt(0);while(n>47&&n<58);t!=e.QueryLexer.EOS&&this.backup()},e.QueryLexer.prototype.more=function(){return this.pos<this.length},e.QueryLexer.EOS="EOS",e.QueryLexer.FIELD="FIELD",e.QueryLexer.TERM="TERM",e.QueryLexer.EDIT_DISTANCE="EDIT_DISTANCE",e.QueryLexer.BOOST="BOOST",e.QueryLexer.PRESENCE="PRESENCE",e.QueryLexer.lexField=function(t){return t.backup(),t.emit(e.QueryLexer.FIELD),t.ignore(),e.QueryLexer.lexText},e.QueryLexer.lexTerm=function(t){if(t.width()>1&&(t.backup(),t.emit(e.QueryLexer.TERM)),t.ignore(),t.more())return e.QueryLexer.lexText},e.QueryLexer.lexEditDistance=function(t){return t.ignore(),t.acceptDigitRun(),t.emit(e.QueryLexer.EDIT_DISTANCE),e.QueryLexer.lexText},e.QueryLexer.lexBoost=function(t){return t.ignore(),t.acceptDigitRun(),t.emit(e.QueryLexer.BOOST),e.QueryLexer.lexText},e.QueryLexer.lexEOS=function(t){t.width()>0&&t.emit(e.QueryLexer.TERM)},e.QueryLexer.termSeparator=e.tokenizer.separator,e.QueryLexer.lexText=function(t){for(;;){var n=t.next();if(n==e.QueryLexer.EOS)return e.QueryLexer.lexEOS;if(n.charCodeAt(0)==92){t.escapeCharacter();continue}if(n==":")return e.QueryLexer.lexField;if(n=="~")return t.backup(),t.width()>0&&t.emit(e.QueryLexer.TERM),e.QueryLexer.lexEditDistance;if(n=="^")return t.backup(),t.width()>0&&t.emit(e.QueryLexer.TERM),e.QueryLexer.lexBoost;if(n=="+"&&t.width()===1||n=="-"&&t.width()===1)return t.emit(e.QueryLexer.PRESENCE),e.QueryLexer.lexText;if(n.match(e.QueryLexer.termSeparator))return e.QueryLexer.lexTerm}},e.QueryParser=function(t,n){this.lexer=new e.QueryLexer(t),this.query=n,this.currentClause={},this.lexemeIdx=0},e.QueryParser.prototype.parse=function(){this.lexer.run(),this.lexemes=this.lexer.lexemes;for(var t=e.QueryParser.parseClause;t;)t=t(this);return this.query},e.QueryParser.prototype.peekLexeme=function(){return this.lexemes[this.lexemeIdx]},e.QueryParser.prototype.consumeLexeme=function(){var t=this.peekLexeme();return this.lexemeIdx+=1,t},e.QueryParser.prototype.nextClause=function(){var t=this.currentClause;this.query.clause(t),this.currentClause={}},e.QueryParser.parseClause=function(t){var n=t.peekLexeme();if(n!=null)switch(n.type){case e.QueryLexer.PRESENCE:return e.QueryParser.parsePresence;case e.QueryLexer.FIELD:return e.QueryParser.parseField;case e.QueryLexer.TERM:return e.QueryParser.parseTerm;default:var i="expected either a field or a term, found "+n.type;throw n.str.length>=1&&(i+=" with value '"+n.str+"'"),new e.QueryParseError(i,n.start,n.end)}},e.QueryParser.parsePresence=function(t){var n=t.consumeLexeme();if(n!=null){switch(n.str){case"-":t.currentClause.presence=e.Query.presence.PROHIBITED;break;case"+":t.currentClause.presence=e.Query.presence.REQUIRED;break;default:var i="unrecognised presence operator'"+n.str+"'";throw new e.QueryParseError(i,n.start,n.end)}var r=t.peekLexeme();if(r==null){var i="expecting term or field, found nothing";throw new e.QueryParseError(i,n.start,n.end)}switch(r.type){case e.QueryLexer.FIELD:return e.QueryParser.parseField;case e.QueryLexer.TERM:return e.QueryParser.parseTerm;default:var i="expecting term or field, found '"+r.type+"'";throw new e.QueryParseError(i,r.start,r.end)}}},e.QueryParser.parseField=function(t){var n=t.consumeLexeme();if(n!=null){if(t.query.allFields.indexOf(n.str)==-1){var i=t.query.allFields.map(function(o){return"'"+o+"'"}).join(", "),r="unrecognised field '"+n.str+"', possible fields: "+i;throw new e.QueryParseError(r,n.start,n.end)}t.currentClause.fields=[n.str];var s=t.peekLexeme();if(s==null){var r="expecting term, found nothing";throw new e.QueryParseError(r,n.start,n.end)}switch(s.type){case e.QueryLexer.TERM:return e.QueryParser.parseTerm;default:var r="expecting term, found '"+s.type+"'";throw new e.QueryParseError(r,s.start,s.end)}}},e.QueryParser.parseTerm=function(t){var n=t.consumeLexeme();if(n!=null){t.currentClause.term=n.str.toLowerCase(),n.str.indexOf("*")!=-1&&(t.currentClause.usePipeline=!1);var i=t.peekLexeme();if(i==null){t.nextClause();return}switch(i.type){case e.QueryLexer.TERM:return t.nextClause(),e.QueryParser.parseTerm;case e.QueryLexer.FIELD:return t.nextClause(),e.QueryParser.parseField;case e.QueryLexer.EDIT_DISTANCE:return e.QueryParser.parseEditDistance;case e.QueryLexer.BOOST:return e.QueryParser.parseBoost;case e.QueryLexer.PRESENCE:return t.nextClause(),e.QueryParser.parsePresence;default:var r="Unexpected lexeme type '"+i.type+"'";throw new e.QueryParseError(r,i.start,i.end)}}},e.QueryParser.parseEditDistance=function(t){var n=t.consumeLexeme();if(n!=null){var i=parseInt(n.str,10);if(isNaN(i)){var r="edit distance must be numeric";throw new e.QueryParseError(r,n.start,n.end)}t.currentClause.editDistance=i;var s=t.peekLexeme();if(s==null){t.nextClause();return}switch(s.type){case e.QueryLexer.TERM:return t.nextClause(),e.QueryParser.parseTerm;case e.QueryLexer.FIELD:return t.nextClause(),e.QueryParser.parseField;case e.QueryLexer.EDIT_DISTANCE:return e.QueryParser.parseEditDistance;case e.QueryLexer.BOOST:return e.QueryParser.parseBoost;case e.QueryLexer.PRESENCE:return t.nextClause(),e.QueryParser.parsePresence;default:var r="Unexpected lexeme type '"+s.type+"'";throw new e.QueryParseError(r,s.start,s.end)}}},e.QueryParser.parseBoost=function(t){var n=t.consumeLexeme();if(n!=null){var i=parseInt(n.str,10);if(isNaN(i)){var r="boost must be numeric";throw new e.QueryParseError(r,n.start,n.end)}t.currentClause.boost=i;var s=t.peekLexeme();if(s==null){t.nextClause();return}switch(s.type){case e.QueryLexer.TERM:return t.nextClause(),e.QueryParser.parseTerm;case e.QueryLexer.FIELD:return t.nextClause(),e.QueryParser.parseField;case e.QueryLexer.EDIT_DISTANCE:return e.QueryParser.parseEditDistance;case e.QueryLexer.BOOST:return e.QueryParser.parseBoost;case e.QueryLexer.PRESENCE:return t.nextClause(),e.QueryParser.parsePresence;default:var r="Unexpected lexeme type '"+s.type+"'";throw new e.QueryParseError(r,s.start,s.end)}}},function(t,n){typeof define=="function"&&define.amd?define(n):typeof Mt=="object"?Bt.exports=n():t.lunr=n()}(this,function(){return 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 /*!
  * lunr.Builder
  * Copyright (C) 2020 Oliver Nightingale
  */
 /*!
  * lunr.Index
  * Copyright (C) 2020 Oliver Nightingale
  */
 /*!
  * lunr.Pipeline
  * Copyright (C) 2020 Oliver Nightingale
  */
 /*!
  * lunr.Set
  * Copyright (C) 2020 Oliver Nightingale
  */
 /*!
  * lunr.TokenSet
  * Copyright (C) 2020 Oliver Nightingale
  */
 /*!
  * lunr.Vector
  * Copyright (C) 2020 Oliver Nightingale
  */
 /*!
  * lunr.stemmer
  * Copyright (C) 2020 Oliver Nightingale
  * Includes code from - http://tartarus.org/~martin/PorterStemmer/js.txt
  */
 /*!
  * lunr.stopWordFilter
  * Copyright (C) 2020 Oliver Nightingale
  */
 /*!
  * lunr.tokenizer
  * Copyright (C) 2020 Oliver Nightingale
  */
 /*!
  * lunr.trimmer
  * Copyright (C) 2020 Oliver Nightingale
  */
 /*!
  * lunr.utils
  * Copyright (C) 2020 Oliver Nightingale
  */
 /**
  * lunr - http://lunrjs.com - A bit like Solr, but much smaller and not as bright - 2.3.9
  * Copyright (C) 2020 Oliver Nightingale
  * @license MIT
  */