Release v2.2.4 #692
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Release v2.2.4 #692
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![github-advanced-security[bot]](https://avatars.githubusercontent.com/in/57789?s=60&v=4){kind=small}
| `,e)},t.Pipeline.load=function(e){var n=new t.Pipeline;return e.forEach(function(r){var i=t.Pipeline.registeredFunctions[r];if(i)n.add(i);else throw new Error("Cannot load unregistered function: "+r)}),n},t.Pipeline.prototype.add=function(){var e=Array.prototype.slice.call(arguments);e.forEach(function(n){t.Pipeline.warnIfFunctionNotRegistered(n),this._stack.push(n)},this)},t.Pipeline.prototype.after=function(e,n){t.Pipeline.warnIfFunctionNotRegistered(n);var r=this._stack.indexOf(e);if(r==-1)throw new Error("Cannot find existingFn");r=r+1,this._stack.splice(r,0,n)},t.Pipeline.prototype.before=function(e,n){t.Pipeline.warnIfFunctionNotRegistered(n);var r=this._stack.indexOf(e);if(r==-1)throw new Error("Cannot find existingFn");this._stack.splice(r,0,n)},t.Pipeline.prototype.remove=function(e){var n=this._stack.indexOf(e);n!=-1&&this._stack.splice(n,1)},t.Pipeline.prototype.run=function(e){for(var n=this._stack.length,r=0;r<n;r++){for(var i=this._stack[r],s=[],o=0;o<e.length;o++){var a=i(e[o],o,e);if(!(a==null||a===""))if(Array.isArray(a))for(var u=0;u<a.length;u++)s.push(a[u]);else s.push(a)}e=s}return e},t.Pipeline.prototype.runString=function(e,n){var r=new t.Token(e,n);return this.run([r]).map(function(i){return i.toString()})},t.Pipeline.prototype.reset=function(){this._stack=[]},t.Pipeline.prototype.toJSON=function(){return this._stack.map(function(e){return t.Pipeline.warnIfFunctionNotRegistered(e),e.label})};t.Vector=function(e){this._magnitude=0,this.elements=e||[]},t.Vector.prototype.positionForIndex=function(e){if(this.elements.length==0)return 0;for(var n=0,r=this.elements.length/2,i=r-n,s=Math.floor(i/2),o=this.elements[s*2];i>1&&(o<e&&(n=s),o>e&&(r=s),o!=e);)i=r-n,s=n+Math.floor(i/2),o=this.elements[s*2];if(o==e||o>e)return s*2;if(o<e)return(s+1)*2},t.Vector.prototype.insert=function(e,n){this.upsert(e,n,function(){throw"duplicate index"})},t.Vector.prototype.upsert=function(e,n,r){this._magnitude=0;var i=this.positionForIndex(e);this.elements[i]==e?this.elements[i+1]=r(this.elements[i+1],n):this.elements.splice(i,0,e,n)},t.Vector.prototype.magnitude=function(){if(this._magnitude)return this._magnitude;for(var e=0,n=this.elements.length,r=1;r<n;r+=2){var i=this.elements[r];e+=i*i}return this._magnitude=Math.sqrt(e)},t.Vector.prototype.dot=function(e){for(var n=0,r=this.elements,i=e.elements,s=r.length,o=i.length,a=0,u=0,l=0,h=0;l<s&&h<o;)a=r[l],u=i[h],a<u?l+=2:a>u?h+=2:a==u&&(n+=r[l+1]*i[h+1],l+=2,h+=2);return n},t.Vector.prototype.similarity=function(e){return this.dot(e)/this.magnitude()||0},t.Vector.prototype.toArray=function(){for(var e=new Array(this.elements.length/2),n=1,r=0;n<this.elements.length;n+=2,r++)e[r]=this.elements[n];return e},t.Vector.prototype.toJSON=function(){return this.elements};t.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"},n={icate:"ic",ative:"",alize:"al",iciti:"ic",ical:"ic",ful:"",ness:""},r="[^aeiou]",i="[aeiouy]",s=r+"[^aeiouy]*",o=i+"[aeiou]*",a="^("+s+")?"+o+s,u="^("+s+")?"+o+s+"("+o+")?$",l="^("+s+")?"+o+s+o+s,h="^("+s+")?"+i,m=new RegExp(a),v=new RegExp(l),b=new RegExp(u),y=new RegExp(h),E=/^(.+?)(ss|i)es$/,p=/^(.+?)([^s])s$/,f=/^(.+?)eed$/,S=/^(.+?)(ed|ing)$/,w=/.$/,k=/(at|bl|iz)$/,_=new RegExp("([^aeiouylsz])\\1$"),z=new RegExp("^"+s+i+"[^aeiouwxy]$"),H=/^(.+?[^aeiou])y$/,q=/^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/,$=/^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/,V=/^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/,W=/^(.+?)(s|t)(ion)$/,P=/^(.+?)e$/,U=/ll$/,G=new RegExp("^"+s+i+"[^aeiouwxy]$"),N=function(c){var g,C,T,d,x,O,D;if(c.length<3)return c;if(T=c.substr(0,1),T=="y"&&(c=T.toUpperCase()+c.substr(1)),d=E,x=p,d.test(c)?c=c.replace(d,"$1$2"):x.test(c)&&(c=c.replace(x,"$1$2")),d=f,x=S,d.test(c)){var L=d.exec(c);d=m,d.test(L[1])&&(d=w,c=c.replace(d,""))}else if(x.test(c)){var L=x.exec(c);g=L[1],x=y,x.test(g)&&(c=g,x=k,O=_,D=z,x.test(c)?c=c+"e":O.test(c)?(d=w,c=c.replace(d,"")):D.test(c)&&(c=c+"e"))}if(d=H,d.test(c)){var L=d.exec(c);g=L[1],c=g+"i"}if(d=q,d.test(c)){var L=d.exec(c);g=L[1],C=L[2],d=m,d.test(g)&&(c=g+e[C])}if(d=$,d.test(c)){var L=d.exec(c);g=L[1],C=L[2],d=m,d.test(g)&&(c=g+n[C])}if(d=V,x=W,d.test(c)){var L=d.exec(c);g=L[1],d=v,d.test(g)&&(c=g)}else if(x.test(c)){var L=x.exec(c);g=L[1]+L[2],x=v,x.test(g)&&(c=g)}if(d=P,d.test(c)){var L=d.exec(c);g=L[1],d=v,x=b,O=G,(d.test(g)||x.test(g)&&!O.test(g))&&(c=g)}return d=U,x=v,d.test(c)&&x.test(c)&&(d=w,c=c.replace(d,"")),T=="y"&&(c=T.toLowerCase()+c.substr(1)),c};return function(M){return M.update(N)}}(),t.Pipeline.registerFunction(t.stemmer,"stemmer");t.generateStopWordFilter=function(e){var n=e.reduce(function(r,i){return r[i]=i,r},{});return function(r){if(r&&n[r.toString()]!==r.toString())return r}},t.stopWordFilter=t.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"]),t.Pipeline.registerFunction(t.stopWordFilter,"stopWordFilter");t.trimmer=function(e){return e.update(function(n){return n.replace(/^\W+/,"").replace(/\W+$/,"")})},t.Pipeline.registerFunction(t.trimmer,"trimmer");t.TokenSet=function(){this.final=!1,this.edges={},this.id=t.TokenSet._nextId,t.TokenSet._nextId+=1},t.TokenSet._nextId=1,t.TokenSet.fromArray=function(e){for(var n=new t.TokenSet.Builder,r=0,i=e.length;r<i;r++)n.insert(e[r]);return n.finish(),n.root},t.TokenSet.fromClause=function(e){return"editDistance"in e?t.TokenSet.fromFuzzyString(e.term,e.editDistance):t.TokenSet.fromString(e.term)},t.TokenSet.fromFuzzyString=function(e,n){for(var r=new t.TokenSet,i=[{node:r,editsRemaining:n,str:e}];i.length;){var s=i.pop();if(s.str.length>0){var o=s.str.charAt(0),a;o in s.node.edges?a=s.node.edges[o]:(a=new t.TokenSet,s.node.edges[o]=a),s.str.length==1&&(a.final=!0),i.push({node:a,editsRemaining:s.editsRemaining,str:s.str.slice(1)})}if(s.editsRemaining!=0){if("*"in s.node.edges)var u=s.node.edges["*"];else{var u=new t.TokenSet;s.node.edges["*"]=u}if(s.str.length==0&&(u.final=!0),i.push({node:u,editsRemaining:s.editsRemaining-1,str:s.str}),s.str.length>1&&i.push({node:s.node,editsRemaining:s.editsRemaining-1,str:s.str.slice(1)}),s.str.length==1&&(s.node.final=!0),s.str.length>=1){if("*"in s.node.edges)var l=s.node.edges["*"];else{var l=new t.TokenSet;s.node.edges["*"]=l}s.str.length==1&&(l.final=!0),i.push({node:l,editsRemaining:s.editsRemaining-1,str:s.str.slice(1)})}if(s.str.length>1){var h=s.str.charAt(0),m=s.str.charAt(1),v;m in s.node.edges?v=s.node.edges[m]:(v=new t.TokenSet,s.node.edges[m]=v),s.str.length==1&&(v.final=!0),i.push({node:v,editsRemaining:s.editsRemaining-1,str:h+s.str.slice(2)})}}}return r},t.TokenSet.fromString=function(e){for(var n=new t.TokenSet,r=n,i=0,s=e.length;i<s;i++){var o=e[i],a=i==s-1;if(o=="*")n.edges[o]=n,n.final=a;else{var u=new t.TokenSet;u.final=a,n.edges[o]=u,n=u}}return r},t.TokenSet.prototype.toArray=function(){for(var e=[],n=[{prefix:"",node:this}];n.length;){var r=n.pop(),i=Object.keys(r.node.edges),s=i.length;r.node.final&&(r.prefix.charAt(0),e.push(r.prefix));for(var o=0;o<s;o++){var a=i[o];n.push({prefix:r.prefix.concat(a),node:r.node.edges[a]})}}return e},t.TokenSet.prototype.toString=function(){if(this._str)return this._str;for(var e=this.final?"1":"0",n=Object.keys(this.edges).sort(),r=n.length,i=0;i<r;i++){var s=n[i],o=this.edges[s];e=e+s+o.id}return e},t.TokenSet.prototype.intersect=function(e){for(var n=new t.TokenSet,r=void 0,i=[{qNode:e,output:n,node:this}];i.length;){r=i.pop();for(var s=Object.keys(r.qNode.edges),o=s.length,a=Object.keys(r.node.edges),u=a.length,l=0;l<o;l++)for(var h=s[l],m=0;m<u;m++){var v=a[m];if(v==h||h=="*"){var b=r.node.edges[v],y=r.qNode.edges[h],E=b.final&&y.final,p=void 0;v in r.output.edges?(p=r.output.edges[v],p.final=p.final||E):(p=new t.TokenSet,p.final=E,r.output.edges[v]=p),i.push({qNode:y,output:p,node:b})}}}return n},t.TokenSet.Builder=function(){this.previousWord="",this.root=new t.TokenSet,this.uncheckedNodes=[],this.minimizedNodes={}},t.TokenSet.Builder.prototype.insert=function(e){var n,r=0;if(e<this.previousWord)throw new Error("Out of order word insertion");for(var i=0;i<e.length&&i<this.previousWord.length&&e[i]==this.previousWord[i];i++)r++;this.minimize(r),this.uncheckedNodes.length==0?n=this.root:n=this.uncheckedNodes[this.uncheckedNodes.length-1].child;for(var i=r;i<e.length;i++){var s=new t.TokenSet,o=e[i];n.edges[o]=s,this.uncheckedNodes.push({parent:n,char:o,child:s}),n=s}n.final=!0,this.previousWord=e},t.TokenSet.Builder.prototype.finish=function(){this.minimize(0)},t.TokenSet.Builder.prototype.minimize=function(e){for(var n=this.uncheckedNodes.length-1;n>=e;n--){var r=this.uncheckedNodes[n],i=r.child.toString();i in this.minimizedNodes?r.parent.edges[r.char]=this.minimizedNodes[i]:(r.child._str=i,this.minimizedNodes[i]=r.child),this.uncheckedNodes.pop()}};t.Index=function(e){this.invertedIndex=e.invertedIndex,this.fieldVectors=e.fieldVectors,this.tokenSet=e.tokenSet,this.fields=e.fields,this.pipeline=e.pipeline},t.Index.prototype.search=function(e){return this.query(function(n){var r=new t.QueryParser(e,n);r.parse()})},t.Index.prototype.query=function(e){for(var n=new t.Query(this.fields),r=Object.create(null),i=Object.create(null),s=Object.create(null),o=Object.create(null),a=Object.create(null),u=0;u<this.fields.length;u++)i[this.fields[u]]=new t.Vector;e.call(n,n);for(var u=0;u<n.clauses.length;u++){var l=n.clauses[u],h=null,m=t.Set.empty;l.usePipeline?h=this.pipeline.runString(l.term,{fields:l.fields}):h=[l.term];for(var v=0;v<h.length;v++){var b=h[v];l.term=b;var y=t.TokenSet.fromClause(l),E=this.tokenSet.intersect(y).toArray();if(E.length===0&&l.presence===t.Query.presence.REQUIRED){for(var p=0;p<l.fields.length;p++){var f=l.fields[p];o[f]=t.Set.empty}break}for(var S=0;S<E.length;S++)for(var w=E[S],k=this.invertedIndex[w],_=k._index,p=0;p<l.fields.length;p++){var f=l.fields[p],z=k[f],H=Object.keys(z),q=w+"/"+f,$=new t.Set(H);if(l.presence==t.Query.presence.REQUIRED&&(m=m.union($),o[f]===void 0&&(o[f]=t.Set.complete)),l.presence==t.Query.presence.PROHIBITED){a[f]===void 0&&(a[f]=t.Set.empty),a[f]=a[f].union($);continue}if(i[f].upsert(_,l.boost,function(Ie,ke){return Ie+ke}),!s[q]){for(var V=0;V<H.length;V++){var W=H[V],P=new t.FieldRef(W,f),U=z[W],G;(G=r[P])===void 0?r[P]=new t.MatchData(w,f,U):G.add(w,f,U)}s[q]=!0}}}if(l.presence===t.Query.presence.REQUIRED)for(var p=0;p<l.fields.length;p++){var f=l.fields[p];o[f]=o[f].intersect(m)}}for(var N=t.Set.complete,M=t.Set.empty,u=0;u<this.fields.length;u++){var f=this.fields[u];o[f]&&(N=N.intersect(o[f])),a[f]&&(M=M.union(a[f]))}var c=Object.keys(r),g=[],C=Object.create(null);if(n.isNegated()){c=Object.keys(this.fieldVectors);for(var u=0;u<c.length;u++){var P=c[u],T=t.FieldRef.fromString(P);r[P]=new t.MatchData}}for(var u=0;u<c.length;u++){var T=t.FieldRef.fromString(c[u]),d=T.docRef;if(N.contains(d)&&!M.contains(d)){var x=this.fieldVectors[T],O=i[T.fieldName].similarity(x),D;if((D=C[d])!==void 0)D.score+=O,D.matchData.combine(r[T]);else{var L={ref:d,score:O,matchData:r[T]};C[d]=L,g.push(L)}}}return g.sort(function(Se,Te){return Te.score-Se.score})},t.Index.prototype.toJSON=function(){var e=Object.keys(this.invertedIndex).sort().map(function(r){return[r,this.invertedIndex[r]]},this),n=Object.keys(this.fieldVectors).map(function(r){return[r,this.fieldVectors[r].toJSON()]},this);return{version:t.version,fields:this.fields,fieldVectors:n,invertedIndex:e,pipeline:this.pipeline.toJSON()}},t.Index.load=function(e){var n={},r={},i=e.fieldVectors,s=Object.create(null),o=e.invertedIndex,a=new t.TokenSet.Builder,u=t.Pipeline.load(e.pipeline);e.version!=t.version&&t.utils.warn("Version mismatch when loading serialised index. Current version of lunr '"+t.version+"' does not match serialized index '"+e.version+"'");for(var l=0;l<i.length;l++){var h=i[l],m=h[0],v=h[1];r[m]=new t.Vector(v)}for(var l=0;l<o.length;l++){var h=o[l],b=h[0],y=h[1];a.insert(b),s[b]=y}return a.finish(),n.fields=e.fields,n.fieldVectors=r,n.invertedIndex=s,n.tokenSet=a.root,n.pipeline=u,new t.Index(n)};t.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=t.tokenizer,this.pipeline=new t.Pipeline,this.searchPipeline=new t.Pipeline,this.documentCount=0,this._b=.75,this._k1=1.2,this.termIndex=0,this.metadataWhitelist=[]},t.Builder.prototype.ref=function(e){this._ref=e},t.Builder.prototype.field=function(e,n){if(/\//.test(e))throw new RangeError("Field '"+e+"' contains illegal character '/'");this._fields[e]=n||{}},t.Builder.prototype.b=function(e){e<0?this._b=0:e>1?this._b=1:this._b=e},t.Builder.prototype.k1=function(e){this._k1=e},t.Builder.prototype.add=function(e,n){var r=e[this._ref],i=Object.keys(this._fields);this._documents[r]=n||{},this.documentCount+=1;for(var s=0;s<i.length;s++){var o=i[s],a=this._fields[o].extractor,u=a?a(e):e[o],l=this.tokenizer(u,{fields:[o]}),h=this.pipeline.run(l),m=new t.FieldRef(r,o),v=Object.create(null);this.fieldTermFrequencies[m]=v,this.fieldLengths[m]=0,this.fieldLengths[m]+=h.length;for(var b=0;b<h.length;b++){var y=h[b];if(v[y]==null&&(v[y]=0),v[y]+=1,this.invertedIndex[y]==null){var E=Object.create(null);E._index=this.termIndex,this.termIndex+=1;for(var p=0;p<i.length;p++)E[i[p]]=Object.create(null);this.invertedIndex[y]=E}this.invertedIndex[y][o][r]==null&&(this.invertedIndex[y][o][r]=Object.create(null));for(var f=0;f<this.metadataWhitelist.length;f++){var S=this.metadataWhitelist[f],w=y.metadata[S];this.invertedIndex[y][o][r][S]==null&&(this.invertedIndex[y][o][r][S]=[]),this.invertedIndex[y][o][r][S].push(w)}}}},t.Builder.prototype.calculateAverageFieldLengths=function(){for(var e=Object.keys(this.fieldLengths),n=e.length,r={},i={},s=0;s<n;s++){var o=t.FieldRef.fromString(e[s]),a=o.fieldName;i[a]||(i[a]=0),i[a]+=1,r[a]||(r[a]=0),r[a]+=this.fieldLengths[o]}for(var u=Object.keys(this._fields),s=0;s<u.length;s++){var l=u[s];r[l]=r[l]/i[l]}this.averageFieldLength=r},t.Builder.prototype.createFieldVectors=function(){for(var e={},n=Object.keys(this.fieldTermFrequencies),r=n.length,i=Object.create(null),s=0;s<r;s++){for(var o=t.FieldRef.fromString(n[s]),a=o.fieldName,u=this.fieldLengths[o],l=new t.Vector,h=this.fieldTermFrequencies[o],m=Object.keys(h),v=m.length,b=this._fields[a].boost||1,y=this._documents[o.docRef].boost||1,E=0;E<v;E++){var p=m[E],f=h[p],S=this.invertedIndex[p]._index,w,k,_;i[p]===void 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p=0;p<u.fields.length;p++){var m=u.fields[p];o[m]=t.Set.empty}break}for(var S=0;S<L.length;S++)for(var w=L[S],k=this.invertedIndex[w],_=k._index,p=0;p<u.fields.length;p++){var m=u.fields[p],H=k[m],A=Object.keys(H),j=w+"/"+m,$=new t.Set(A);if(u.presence==t.Query.presence.REQUIRED&&(v=v.union($),o[m]===void 0&&(o[m]=t.Set.complete)),u.presence==t.Query.presence.PROHIBITED){a[m]===void 0&&(a[m]=t.Set.empty),a[m]=a[m].union($);continue}if(i[m].upsert(_,u.boost,function(Qe,Ce){return Qe+Ce}),!s[j]){for(var N=0;N<A.length;N++){var q=A[N],P=new t.FieldRef(q,m),z=H[q],W;(W=r[P])===void 0?r[P]=new t.MatchData(w,m,z):W.add(w,m,z)}s[j]=!0}}}if(u.presence===t.Query.presence.REQUIRED)for(var p=0;p<u.fields.length;p++){var m=u.fields[p];o[m]=o[m].intersect(v)}}for(var V=t.Set.complete,R=t.Set.empty,l=0;l<this.fields.length;l++){var m=this.fields[l];o[m]&&(V=V.intersect(o[m])),a[m]&&(R=R.union(a[m]))}var c=Object.keys(r),y=[],I=Object.create(null);if(n.isNegated()){c=Object.keys(this.fieldVectors);for(var l=0;l<c.length;l++){var P=c[l],T=t.FieldRef.fromString(P);r[P]=new t.MatchData}}for(var l=0;l<c.length;l++){var T=t.FieldRef.fromString(c[l]),h=T.docRef;if(V.contains(h)&&!R.contains(h)){var x=this.fieldVectors[T],O=i[T.fieldName].similarity(x),M;if((M=I[h])!==void 0)M.score+=O,M.matchData.combine(r[T]);else{var E={ref:h,score:O,matchData:r[T]};I[h]=E,y.push(E)}}}return y.sort(function(Te,ke){return ke.score-Te.score})},t.Index.prototype.toJSON=function(){var e=Object.keys(this.invertedIndex).sort().map(function(r){return[r,this.invertedIndex[r]]},this),n=Object.keys(this.fieldVectors).map(function(r){return[r,this.fieldVectors[r].toJSON()]},this);return{version:t.version,fields:this.fields,fieldVectors:n,invertedIndex:e,pipeline:this.pipeline.toJSON()}},t.Index.load=function(e){var n={},r={},i=e.fieldVectors,s=Object.create(null),o=e.invertedIndex,a=new t.TokenSet.Builder,l=t.Pipeline.load(e.pipeline);e.version!=t.version&&t.utils.warn("Version mismatch when loading serialised index. Current version of lunr '"+t.version+"' does not match serialized index '"+e.version+"'");for(var u=0;u<i.length;u++){var d=i[u],v=d[0],f=d[1];r[v]=new t.Vector(f)}for(var u=0;u<o.length;u++){var d=o[u],b=d[0],g=d[1];a.insert(b),s[b]=g}return a.finish(),n.fields=e.fields,n.fieldVectors=r,n.invertedIndex=s,n.tokenSet=a.root,n.pipeline=l,new t.Index(n)};t.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=t.tokenizer,this.pipeline=new t.Pipeline,this.searchPipeline=new t.Pipeline,this.documentCount=0,this._b=.75,this._k1=1.2,this.termIndex=0,this.metadataWhitelist=[]},t.Builder.prototype.ref=function(e){this._ref=e},t.Builder.prototype.field=function(e,n){if(/\//.test(e))throw new RangeError("Field '"+e+"' contains illegal character '/'");this._fields[e]=n||{}},t.Builder.prototype.b=function(e){e<0?this._b=0:e>1?this._b=1:this._b=e},t.Builder.prototype.k1=function(e){this._k1=e},t.Builder.prototype.add=function(e,n){var r=e[this._ref],i=Object.keys(this._fields);this._documents[r]=n||{},this.documentCount+=1;for(var s=0;s<i.length;s++){var o=i[s],a=this._fields[o].extractor,l=a?a(e):e[o],u=this.tokenizer(l,{fields:[o]}),d=this.pipeline.run(u),v=new t.FieldRef(r,o),f=Object.create(null);this.fieldTermFrequencies[v]=f,this.fieldLengths[v]=0,this.fieldLengths[v]+=d.length;for(var b=0;b<d.length;b++){var g=d[b];if(f[g]==null&&(f[g]=0),f[g]+=1,this.invertedIndex[g]==null){var L=Object.create(null);L._index=this.termIndex,this.termIndex+=1;for(var p=0;p<i.length;p++)L[i[p]]=Object.create(null);this.invertedIndex[g]=L}this.invertedIndex[g][o][r]==null&&(this.invertedIndex[g][o][r]=Object.create(null));for(var m=0;m<this.metadataWhitelist.length;m++){var S=this.metadataWhitelist[m],w=g.metadata[S];this.invertedIndex[g][o][r][S]==null&&(this.invertedIndex[g][o][r][S]=[]),this.invertedIndex[g][o][r][S].push(w)}}}},t.Builder.prototype.calculateAverageFieldLengths=function(){for(var e=Object.keys(this.fieldLengths),n=e.length,r={},i={},s=0;s<n;s++){var o=t.FieldRef.fromString(e[s]),a=o.fieldName;i[a]||(i[a]=0),i[a]+=1,r[a]||(r[a]=0),r[a]+=this.fieldLengths[o]}for(var l=Object.keys(this._fields),s=0;s<l.length;s++){var u=l[s];r[u]=r[u]/i[u]}this.averageFieldLength=r},t.Builder.prototype.createFieldVectors=function(){for(var e={},n=Object.keys(this.fieldTermFrequencies),r=n.length,i=Object.create(null),s=0;s<r;s++){for(var o=t.FieldRef.fromString(n[s]),a=o.fieldName,l=this.fieldLengths[o],u=new t.Vector,d=this.fieldTermFrequencies[o],v=Object.keys(d),f=v.length,b=this._fields[a].boost||1,g=this._documents[o.docRef].boost||1,L=0;L<f;L++){var p=v[L],m=d[p],S=this.invertedIndex[p]._index,w,k,_;i[p]===void 0?(w=t.idf(this.invertedIndex[p],this.documentCount),i[p]=w):w=i[p],k=w*((this._k1+1)*m)/(this._k1*(1-this._b+this._b*(l/this.averageFieldLength[a]))+m),k*=b,k*=g,_=Math.round(k*1e3)/1e3,u.insert(S,_)}e[o]=u}this.fieldVectors=e},t.Builder.prototype.createTokenSet=function(){this.tokenSet=t.TokenSet.fromArray(Object.keys(this.invertedIndex).sort())},t.Builder.prototype.build=function(){return this.calculateAverageFieldLengths(),this.createFieldVectors(),this.createTokenSet(),new t.Index({invertedIndex:this.invertedIndex,fieldVectors:this.fieldVectors,tokenSet:this.tokenSet,fields:Object.keys(this._fields),pipeline:this.searchPipeline})},t.Builder.prototype.use=function(e){var n=Array.prototype.slice.call(arguments,1);n.unshift(this),e.apply(this,n)},t.MatchData=function(e,n,r){for(var i=Object.create(null),s=Object.keys(r||{}),o=0;o<s.length;o++){var a=s[o];i[a]=r[a].slice()}this.metadata=Object.create(null),e!==void 0&&(this.metadata[e]=Object.create(null),this.metadata[e][n]=i)},t.MatchData.prototype.combine=function(e){for(var n=Object.keys(e.metadata),r=0;r<n.length;r++){var i=n[r],s=Object.keys(e.metadata[i]);this.metadata[i]==null&&(this.metadata[i]=Object.create(null));for(var o=0;o<s.length;o++){var a=s[o],l=Object.keys(e.metadata[i][a]);this.metadata[i][a]==null&&(this.metadata[i][a]=Object.create(null));for(var u=0;u<l.length;u++){var d=l[u];this.metadata[i][a][d]==null?this.metadata[i][a][d]=e.metadata[i][a][d]:this.metadata[i][a][d]=this.metadata[i][a][d].concat(e.metadata[i][a][d])}}}},t.MatchData.prototype.add=function(e,n,r){if(!(e in this.metadata)){this.metadata[e]=Object.create(null),this.metadata[e][n]=r;return}if(!(n in this.metadata[e])){this.metadata[e][n]=r;return}for(var i=Object.keys(r),s=0;s<i.length;s++){var o=i[s];o in this.metadata[e][n]?this.metadata[e][n][o]=this.metadata[e][n][o].concat(r[o]):this.metadata[e][n][o]=r[o]}},t.Query=function(e){this.clauses=[],this.allFields=e},t.Query.wildcard=new String("*"),t.Query.wildcard.NONE=0,t.Query.wildcard.LEADING=1,t.Query.wildcard.TRAILING=2,t.Query.presence={OPTIONAL:1,REQUIRED:2,PROHIBITED:3},t.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=t.Query.wildcard.NONE),e.wildcard&t.Query.wildcard.LEADING&&e.term.charAt(0)!=t.Query.wildcard&&(e.term="*"+e.term),e.wildcard&t.Query.wildcard.TRAILING&&e.term.slice(-1)!=t.Query.wildcard&&(e.term=""+e.term+"*"),"presence"in e||(e.presence=t.Query.presence.OPTIONAL),this.clauses.push(e),this},t.Query.prototype.isNegated=function(){for(var e=0;e<this.clauses.length;e++)if(this.clauses[e].presence!=t.Query.presence.PROHIBITED)return!1;return!0},t.Query.prototype.term=function(e,n){if(Array.isArray(e))return e.forEach(function(i){this.term(i,t.utils.clone(n))},this),this;var r=n||{};return r.term=e.toString(),this.clause(r),this},t.QueryParseError=function(e,n,r){this.name="QueryParseError",this.message=e,this.start=n,this.end=r},t.QueryParseError.prototype=new Error,t.QueryLexer=function(e){this.lexemes=[],this.str=e,this.length=e.length,this.pos=0,this.start=0,this.escapeCharPositions=[]},t.QueryLexer.prototype.run=function(){for(var e=t.QueryLexer.lexText;e;)e=e(this)},t.QueryLexer.prototype.sliceString=function(){for(var e=[],n=this.start,r=this.pos,i=0;i<this.escapeCharPositions.length;i++)r=this.escapeCharPositions[i],e.push(this.str.slice(n,r)),n=r+1;return e.push(this.str.slice(n,this.pos)),this.escapeCharPositions.length=0,e.join("")},t.QueryLexer.prototype.emit=function(e){this.lexemes.push({type:e,str:this.sliceString(),start:this.start,end:this.pos}),this.start=this.pos},t.QueryLexer.prototype.escapeCharacter=function(){this.escapeCharPositions.push(this.pos-1),this.pos+=1},t.QueryLexer.prototype.next=function(){if(this.pos>=this.length)return t.QueryLexer.EOS;var e=this.str.charAt(this.pos);return this.pos+=1,e},t.QueryLexer.prototype.width=function(){return this.pos-this.start},t.QueryLexer.prototype.ignore=function(){this.start==this.pos&&(this.pos+=1),this.start=this.pos},t.QueryLexer.prototype.backup=function(){this.pos-=1},t.QueryLexer.prototype.acceptDigitRun=function(){var e,n;do e=this.next(),n=e.charCodeAt(0);while(n>47&&n<58);e!=t.QueryLexer.EOS&&this.backup()},t.QueryLexer.prototype.more=function(){return this.pos<this.length},t.QueryLexer.EOS="EOS",t.QueryLexer.FIELD="FIELD",t.QueryLexer.TERM="TERM",t.QueryLexer.EDIT_DISTANCE="EDIT_DISTANCE",t.QueryLexer.BOOST="BOOST",t.QueryLexer.PRESENCE="PRESENCE",t.QueryLexer.lexField=function(e){return e.backup(),e.emit(t.QueryLexer.FIELD),e.ignore(),t.QueryLexer.lexText},t.QueryLexer.lexTerm=function(e){if(e.width()>1&&(e.backup(),e.emit(t.QueryLexer.TERM)),e.ignore(),e.more())return t.QueryLexer.lexText},t.QueryLexer.lexEditDistance=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(t.QueryLexer.EDIT_DISTANCE),t.QueryLexer.lexText},t.QueryLexer.lexBoost=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(t.QueryLexer.BOOST),t.QueryLexer.lexText},t.QueryLexer.lexEOS=function(e){e.width()>0&&e.emit(t.QueryLexer.TERM)},t.QueryLexer.termSeparator=t.tokenizer.separator,t.QueryLexer.lexText=function(e){for(;;){var n=e.next();if(n==t.QueryLexer.EOS)return t.QueryLexer.lexEOS;if(n.charCodeAt(0)==92){e.escapeCharacter();continue}if(n==":")return t.QueryLexer.lexField;if(n=="~")return e.backup(),e.width()>0&&e.emit(t.QueryLexer.TERM),t.QueryLexer.lexEditDistance;if(n=="^")return e.backup(),e.width()>0&&e.emit(t.QueryLexer.TERM),t.QueryLexer.lexBoost;if(n=="+"&&e.width()===1||n=="-"&&e.width()===1)return e.emit(t.QueryLexer.PRESENCE),t.QueryLexer.lexText;if(n.match(t.QueryLexer.termSeparator))return t.QueryLexer.lexTerm}},t.QueryParser=function(e,n){this.lexer=new t.QueryLexer(e),this.query=n,this.currentClause={},this.lexemeIdx=0},t.QueryParser.prototype.parse=function(){this.lexer.run(),this.lexemes=this.lexer.lexemes;for(var e=t.QueryParser.parseClause;e;)e=e(this);return this.query},t.QueryParser.prototype.peekLexeme=function(){return this.lexemes[this.lexemeIdx]},t.QueryParser.prototype.consumeLexeme=function(){var e=this.peekLexeme();return this.lexemeIdx+=1,e},t.QueryParser.prototype.nextClause=function(){var e=this.currentClause;this.query.clause(e),this.currentClause={}},t.QueryParser.parseClause=function(e){var n=e.peekLexeme();if(n!=null)switch(n.type){case t.QueryLexer.PRESENCE:return t.QueryParser.parsePresence;case t.QueryLexer.FIELD:return t.QueryParser.parseField;case t.QueryLexer.TERM:return t.QueryParser.parseTerm;default:var r="expected either a field or a term, found "+n.type;throw n.str.length>=1&&(r+=" with value '"+n.str+"'"),new t.QueryParseError(r,n.start,n.end)}},t.QueryParser.parsePresence=function(e){var n=e.consumeLexeme();if(n!=null){switch(n.str){case"-":e.currentClause.presence=t.Query.presence.PROHIBITED;break;case"+":e.currentClause.presence=t.Query.presence.REQUIRED;break;default:var r="unrecognised presence operator'"+n.str+"'";throw new t.QueryParseError(r,n.start,n.end)}var i=e.peekLexeme();if(i==null){var r="expecting term or field, found nothing";throw new t.QueryParseError(r,n.start,n.end)}switch(i.type){case t.QueryLexer.FIELD:return t.QueryParser.parseField;case t.QueryLexer.TERM:return t.QueryParser.parseTerm;default:var r="expecting term or field, found '"+i.type+"'";throw new t.QueryParseError(r,i.start,i.end)}}},t.QueryParser.parseField=function(e){var n=e.consumeLexeme();if(n!=null){if(e.query.allFields.indexOf(n.str)==-1){var r=e.query.allFields.map(function(o){return"'"+o+"'"}).join(", "),i="unrecognised field '"+n.str+"', possible fields: "+r;throw new t.QueryParseError(i,n.start,n.end)}e.currentClause.fields=[n.str];var s=e.peekLexeme();if(s==null){var i="expecting term, found nothing";throw new t.QueryParseError(i,n.start,n.end)}switch(s.type){case t.QueryLexer.TERM:return t.QueryParser.parseTerm;default:var i="expecting term, found '"+s.type+"'";throw new t.QueryParseError(i,s.start,s.end)}}},t.QueryParser.parseTerm=function(e){var n=e.consumeLexeme();if(n!=null){e.currentClause.term=n.str.toLowerCase(),n.str.indexOf("*")!=-1&&(e.currentClause.usePipeline=!1);var r=e.peekLexeme();if(r==null){e.nextClause();return}switch(r.type){case t.QueryLexer.TERM:return e.nextClause(),t.QueryParser.parseTerm;case t.QueryLexer.FIELD:return e.nextClause(),t.QueryParser.parseField;case t.QueryLexer.EDIT_DISTANCE:return t.QueryParser.parseEditDistance;case t.QueryLexer.BOOST:return t.QueryParser.parseBoost;case t.QueryLexer.PRESENCE:return e.nextClause(),t.QueryParser.parsePresence;default:var i="Unexpected lexeme type '"+r.type+"'";throw new t.QueryParseError(i,r.start,r.end)}}},t.QueryParser.parseEditDistance=function(e){var n=e.consumeLexeme();if(n!=null){var r=parseInt(n.str,10);if(isNaN(r)){var i="edit distance must be numeric";throw new t.QueryParseError(i,n.start,n.end)}e.currentClause.editDistance=r;var s=e.peekLexeme();if(s==null){e.nextClause();return}switch(s.type){case t.QueryLexer.TERM:return e.nextClause(),t.QueryParser.parseTerm;case t.QueryLexer.FIELD:return e.nextClause(),t.QueryParser.parseField;case t.QueryLexer.EDIT_DISTANCE:return t.QueryParser.parseEditDistance;case t.QueryLexer.BOOST:return t.QueryParser.parseBoost;case t.QueryLexer.PRESENCE:return 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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"},n={icate:"ic",ative:"",alize:"al",iciti:"ic",ical:"ic",ful:"",ness:""},r="[^aeiou]",i="[aeiouy]",s=r+"[^aeiouy]*",o=i+"[aeiou]*",a="^("+s+")?"+o+s,u="^("+s+")?"+o+s+"("+o+")?$",l="^("+s+")?"+o+s+o+s,h="^("+s+")?"+i,m=new RegExp(a),v=new RegExp(l),b=new RegExp(u),y=new RegExp(h),E=/^(.+?)(ss|i)es$/,p=/^(.+?)([^s])s$/,f=/^(.+?)eed$/,S=/^(.+?)(ed|ing)$/,w=/.$/,k=/(at|bl|iz)$/,_=new RegExp("([^aeiouylsz])\\1$"),z=new 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L=d.exec(c);g=L[1],C=L[2],d=m,d.test(g)&&(c=g+n[C])}if(d=V,x=W,d.test(c)){var L=d.exec(c);g=L[1],d=v,d.test(g)&&(c=g)}else if(x.test(c)){var L=x.exec(c);g=L[1]+L[2],x=v,x.test(g)&&(c=g)}if(d=P,d.test(c)){var L=d.exec(c);g=L[1],d=v,x=b,O=G,(d.test(g)||x.test(g)&&!O.test(g))&&(c=g)}return d=U,x=v,d.test(c)&&x.test(c)&&(d=w,c=c.replace(d,"")),T=="y"&&(c=T.toLowerCase()+c.substr(1)),c};return function(M){return M.update(N)}}(),t.Pipeline.registerFunction(t.stemmer,"stemmer");t.generateStopWordFilter=function(e){var n=e.reduce(function(r,i){return r[i]=i,r},{});return function(r){if(r&&n[r.toString()]!==r.toString())return 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n.replace(/^\W+/,"").replace(/\W+$/,"")})},t.Pipeline.registerFunction(t.trimmer,"trimmer");t.TokenSet=function(){this.final=!1,this.edges={},this.id=t.TokenSet._nextId,t.TokenSet._nextId+=1},t.TokenSet._nextId=1,t.TokenSet.fromArray=function(e){for(var n=new t.TokenSet.Builder,r=0,i=e.length;r<i;r++)n.insert(e[r]);return n.finish(),n.root},t.TokenSet.fromClause=function(e){return"editDistance"in e?t.TokenSet.fromFuzzyString(e.term,e.editDistance):t.TokenSet.fromString(e.term)},t.TokenSet.fromFuzzyString=function(e,n){for(var r=new t.TokenSet,i=[{node:r,editsRemaining:n,str:e}];i.length;){var s=i.pop();if(s.str.length>0){var o=s.str.charAt(0),a;o in s.node.edges?a=s.node.edges[o]:(a=new t.TokenSet,s.node.edges[o]=a),s.str.length==1&&(a.final=!0),i.push({node:a,editsRemaining:s.editsRemaining,str:s.str.slice(1)})}if(s.editsRemaining!=0){if("*"in s.node.edges)var u=s.node.edges["*"];else{var u=new t.TokenSet;s.node.edges["*"]=u}if(s.str.length==0&&(u.final=!0),i.push({node:u,editsRemaining:s.editsRemaining-1,str:s.str}),s.str.length>1&&i.push({node:s.node,editsRemaining:s.editsRemaining-1,str:s.str.slice(1)}),s.str.length==1&&(s.node.final=!0),s.str.length>=1){if("*"in s.node.edges)var l=s.node.edges["*"];else{var l=new t.TokenSet;s.node.edges["*"]=l}s.str.length==1&&(l.final=!0),i.push({node:l,editsRemaining:s.editsRemaining-1,str:s.str.slice(1)})}if(s.str.length>1){var h=s.str.charAt(0),m=s.str.charAt(1),v;m in s.node.edges?v=s.node.edges[m]:(v=new t.TokenSet,s.node.edges[m]=v),s.str.length==1&&(v.final=!0),i.push({node:v,editsRemaining:s.editsRemaining-1,str:h+s.str.slice(2)})}}}return r},t.TokenSet.fromString=function(e){for(var n=new t.TokenSet,r=n,i=0,s=e.length;i<s;i++){var o=e[i],a=i==s-1;if(o=="*")n.edges[o]=n,n.final=a;else{var u=new t.TokenSet;u.final=a,n.edges[o]=u,n=u}}return r},t.TokenSet.prototype.toArray=function(){for(var e=[],n=[{prefix:"",node:this}];n.length;){var r=n.pop(),i=Object.keys(r.node.edges),s=i.length;r.node.final&&(r.prefix.charAt(0),e.push(r.prefix));for(var o=0;o<s;o++){var a=i[o];n.push({prefix:r.prefix.concat(a),node:r.node.edges[a]})}}return e},t.TokenSet.prototype.toString=function(){if(this._str)return this._str;for(var e=this.final?"1":"0",n=Object.keys(this.edges).sort(),r=n.length,i=0;i<r;i++){var s=n[i],o=this.edges[s];e=e+s+o.id}return e},t.TokenSet.prototype.intersect=function(e){for(var n=new t.TokenSet,r=void 0,i=[{qNode:e,output:n,node:this}];i.length;){r=i.pop();for(var s=Object.keys(r.qNode.edges),o=s.length,a=Object.keys(r.node.edges),u=a.length,l=0;l<o;l++)for(var h=s[l],m=0;m<u;m++){var v=a[m];if(v==h||h=="*"){var b=r.node.edges[v],y=r.qNode.edges[h],E=b.final&&y.final,p=void 0;v in r.output.edges?(p=r.output.edges[v],p.final=p.final||E):(p=new t.TokenSet,p.final=E,r.output.edges[v]=p),i.push({qNode:y,output:p,node:b})}}}return n},t.TokenSet.Builder=function(){this.previousWord="",this.root=new t.TokenSet,this.uncheckedNodes=[],this.minimizedNodes={}},t.TokenSet.Builder.prototype.insert=function(e){var n,r=0;if(e<this.previousWord)throw new Error("Out of order word insertion");for(var i=0;i<e.length&&i<this.previousWord.length&&e[i]==this.previousWord[i];i++)r++;this.minimize(r),this.uncheckedNodes.length==0?n=this.root:n=this.uncheckedNodes[this.uncheckedNodes.length-1].child;for(var i=r;i<e.length;i++){var s=new t.TokenSet,o=e[i];n.edges[o]=s,this.uncheckedNodes.push({parent:n,char:o,child:s}),n=s}n.final=!0,this.previousWord=e},t.TokenSet.Builder.prototype.finish=function(){this.minimize(0)},t.TokenSet.Builder.prototype.minimize=function(e){for(var n=this.uncheckedNodes.length-1;n>=e;n--){var r=this.uncheckedNodes[n],i=r.child.toString();i in this.minimizedNodes?r.parent.edges[r.char]=this.minimizedNodes[i]:(r.child._str=i,this.minimizedNodes[i]=r.child),this.uncheckedNodes.pop()}};t.Index=function(e){this.invertedIndex=e.invertedIndex,this.fieldVectors=e.fieldVectors,this.tokenSet=e.tokenSet,this.fields=e.fields,this.pipeline=e.pipeline},t.Index.prototype.search=function(e){return this.query(function(n){var r=new t.QueryParser(e,n);r.parse()})},t.Index.prototype.query=function(e){for(var n=new t.Query(this.fields),r=Object.create(null),i=Object.create(null),s=Object.create(null),o=Object.create(null),a=Object.create(null),u=0;u<this.fields.length;u++)i[this.fields[u]]=new t.Vector;e.call(n,n);for(var u=0;u<n.clauses.length;u++){var l=n.clauses[u],h=null,m=t.Set.empty;l.usePipeline?h=this.pipeline.runString(l.term,{fields:l.fields}):h=[l.term];for(var v=0;v<h.length;v++){var b=h[v];l.term=b;var y=t.TokenSet.fromClause(l),E=this.tokenSet.intersect(y).toArray();if(E.length===0&&l.presence===t.Query.presence.REQUIRED){for(var p=0;p<l.fields.length;p++){var f=l.fields[p];o[f]=t.Set.empty}break}for(var S=0;S<E.length;S++)for(var w=E[S],k=this.invertedIndex[w],_=k._index,p=0;p<l.fields.length;p++){var f=l.fields[p],z=k[f],H=Object.keys(z),q=w+"/"+f,$=new t.Set(H);if(l.presence==t.Query.presence.REQUIRED&&(m=m.union($),o[f]===void 0&&(o[f]=t.Set.complete)),l.presence==t.Query.presence.PROHIBITED){a[f]===void 0&&(a[f]=t.Set.empty),a[f]=a[f].union($);continue}if(i[f].upsert(_,l.boost,function(Ie,ke){return Ie+ke}),!s[q]){for(var V=0;V<H.length;V++){var W=H[V],P=new t.FieldRef(W,f),U=z[W],G;(G=r[P])===void 0?r[P]=new t.MatchData(w,f,U):G.add(w,f,U)}s[q]=!0}}}if(l.presence===t.Query.presence.REQUIRED)for(var p=0;p<l.fields.length;p++){var f=l.fields[p];o[f]=o[f].intersect(m)}}for(var N=t.Set.complete,M=t.Set.empty,u=0;u<this.fields.length;u++){var f=this.fields[u];o[f]&&(N=N.intersect(o[f])),a[f]&&(M=M.union(a[f]))}var c=Object.keys(r),g=[],C=Object.create(null);if(n.isNegated()){c=Object.keys(this.fieldVectors);for(var u=0;u<c.length;u++){var P=c[u],T=t.FieldRef.fromString(P);r[P]=new t.MatchData}}for(var u=0;u<c.length;u++){var T=t.FieldRef.fromString(c[u]),d=T.docRef;if(N.contains(d)&&!M.contains(d)){var x=this.fieldVectors[T],O=i[T.fieldName].similarity(x),D;if((D=C[d])!==void 0)D.score+=O,D.matchData.combine(r[T]);else{var L={ref:d,score:O,matchData:r[T]};C[d]=L,g.push(L)}}}return g.sort(function(Se,Te){return Te.score-Se.score})},t.Index.prototype.toJSON=function(){var e=Object.keys(this.invertedIndex).sort().map(function(r){return[r,this.invertedIndex[r]]},this),n=Object.keys(this.fieldVectors).map(function(r){return[r,this.fieldVectors[r].toJSON()]},this);return{version:t.version,fields:this.fields,fieldVectors:n,invertedIndex:e,pipeline:this.pipeline.toJSON()}},t.Index.load=function(e){var n={},r={},i=e.fieldVectors,s=Object.create(null),o=e.invertedIndex,a=new t.TokenSet.Builder,u=t.Pipeline.load(e.pipeline);e.version!=t.version&&t.utils.warn("Version mismatch when loading serialised index. Current version of lunr '"+t.version+"' does not match serialized index '"+e.version+"'");for(var l=0;l<i.length;l++){var h=i[l],m=h[0],v=h[1];r[m]=new t.Vector(v)}for(var l=0;l<o.length;l++){var h=o[l],b=h[0],y=h[1];a.insert(b),s[b]=y}return a.finish(),n.fields=e.fields,n.fieldVectors=r,n.invertedIndex=s,n.tokenSet=a.root,n.pipeline=u,new t.Index(n)};t.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=t.tokenizer,this.pipeline=new t.Pipeline,this.searchPipeline=new t.Pipeline,this.documentCount=0,this._b=.75,this._k1=1.2,this.termIndex=0,this.metadataWhitelist=[]},t.Builder.prototype.ref=function(e){this._ref=e},t.Builder.prototype.field=function(e,n){if(/\//.test(e))throw new RangeError("Field '"+e+"' contains illegal character 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S=this.metadataWhitelist[f],w=y.metadata[S];this.invertedIndex[y][o][r][S]==null&&(this.invertedIndex[y][o][r][S]=[]),this.invertedIndex[y][o][r][S].push(w)}}}},t.Builder.prototype.calculateAverageFieldLengths=function(){for(var e=Object.keys(this.fieldLengths),n=e.length,r={},i={},s=0;s<n;s++){var o=t.FieldRef.fromString(e[s]),a=o.fieldName;i[a]||(i[a]=0),i[a]+=1,r[a]||(r[a]=0),r[a]+=this.fieldLengths[o]}for(var u=Object.keys(this._fields),s=0;s<u.length;s++){var l=u[s];r[l]=r[l]/i[l]}this.averageFieldLength=r},t.Builder.prototype.createFieldVectors=function(){for(var e={},n=Object.keys(this.fieldTermFrequencies),r=n.length,i=Object.create(null),s=0;s<r;s++){for(var o=t.FieldRef.fromString(n[s]),a=o.fieldName,u=this.fieldLengths[o],l=new t.Vector,h=this.fieldTermFrequencies[o],m=Object.keys(h),v=m.length,b=this._fields[a].boost||1,y=this._documents[o.docRef].boost||1,E=0;E<v;E++){var p=m[E],f=h[p],S=this.invertedIndex[p]._index,w,k,_;i[p]===void 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t.TokenSet;s.node.edges["*"]=l}if(s.str.length==0&&(l.final=!0),i.push({node:l,editsRemaining:s.editsRemaining-1,str:s.str}),s.str.length>1&&i.push({node:s.node,editsRemaining:s.editsRemaining-1,str:s.str.slice(1)}),s.str.length==1&&(s.node.final=!0),s.str.length>=1){if("*"in s.node.edges)var u=s.node.edges["*"];else{var u=new t.TokenSet;s.node.edges["*"]=u}s.str.length==1&&(u.final=!0),i.push({node:u,editsRemaining:s.editsRemaining-1,str:s.str.slice(1)})}if(s.str.length>1){var d=s.str.charAt(0),v=s.str.charAt(1),f;v in s.node.edges?f=s.node.edges[v]:(f=new t.TokenSet,s.node.edges[v]=f),s.str.length==1&&(f.final=!0),i.push({node:f,editsRemaining:s.editsRemaining-1,str:d+s.str.slice(2)})}}}return r},t.TokenSet.fromString=function(e){for(var n=new t.TokenSet,r=n,i=0,s=e.length;i<s;i++){var o=e[i],a=i==s-1;if(o=="*")n.edges[o]=n,n.final=a;else{var l=new t.TokenSet;l.final=a,n.edges[o]=l,n=l}}return r},t.TokenSet.prototype.toArray=function(){for(var e=[],n=[{prefix:"",node:this}];n.length;){var r=n.pop(),i=Object.keys(r.node.edges),s=i.length;r.node.final&&(r.prefix.charAt(0),e.push(r.prefix));for(var o=0;o<s;o++){var a=i[o];n.push({prefix:r.prefix.concat(a),node:r.node.edges[a]})}}return e},t.TokenSet.prototype.toString=function(){if(this._str)return this._str;for(var e=this.final?"1":"0",n=Object.keys(this.edges).sort(),r=n.length,i=0;i<r;i++){var s=n[i],o=this.edges[s];e=e+s+o.id}return e},t.TokenSet.prototype.intersect=function(e){for(var n=new t.TokenSet,r=void 0,i=[{qNode:e,output:n,node:this}];i.length;){r=i.pop();for(var s=Object.keys(r.qNode.edges),o=s.length,a=Object.keys(r.node.edges),l=a.length,u=0;u<o;u++)for(var d=s[u],v=0;v<l;v++){var f=a[v];if(f==d||d=="*"){var b=r.node.edges[f],g=r.qNode.edges[d],L=b.final&&g.final,p=void 0;f in r.output.edges?(p=r.output.edges[f],p.final=p.final||L):(p=new t.TokenSet,p.final=L,r.output.edges[f]=p),i.push({qNode:g,output:p,node:b})}}}return n},t.TokenSet.Builder=function(){this.previousWord="",this.root=new t.TokenSet,this.uncheckedNodes=[],this.minimizedNodes={}},t.TokenSet.Builder.prototype.insert=function(e){var n,r=0;if(e<this.previousWord)throw new Error("Out of order word insertion");for(var i=0;i<e.length&&i<this.previousWord.length&&e[i]==this.previousWord[i];i++)r++;this.minimize(r),this.uncheckedNodes.length==0?n=this.root:n=this.uncheckedNodes[this.uncheckedNodes.length-1].child;for(var i=r;i<e.length;i++){var s=new t.TokenSet,o=e[i];n.edges[o]=s,this.uncheckedNodes.push({parent:n,char:o,child:s}),n=s}n.final=!0,this.previousWord=e},t.TokenSet.Builder.prototype.finish=function(){this.minimize(0)},t.TokenSet.Builder.prototype.minimize=function(e){for(var n=this.uncheckedNodes.length-1;n>=e;n--){var r=this.uncheckedNodes[n],i=r.child.toString();i in this.minimizedNodes?r.parent.edges[r.char]=this.minimizedNodes[i]:(r.child._str=i,this.minimizedNodes[i]=r.child),this.uncheckedNodes.pop()}};t.Index=function(e){this.invertedIndex=e.invertedIndex,this.fieldVectors=e.fieldVectors,this.tokenSet=e.tokenSet,this.fields=e.fields,this.pipeline=e.pipeline},t.Index.prototype.search=function(e){return this.query(function(n){var r=new t.QueryParser(e,n);r.parse()})},t.Index.prototype.query=function(e){for(var n=new t.Query(this.fields),r=Object.create(null),i=Object.create(null),s=Object.create(null),o=Object.create(null),a=Object.create(null),l=0;l<this.fields.length;l++)i[this.fields[l]]=new t.Vector;e.call(n,n);for(var l=0;l<n.clauses.length;l++){var u=n.clauses[l],d=null,v=t.Set.empty;u.usePipeline?d=this.pipeline.runString(u.term,{fields:u.fields}):d=[u.term];for(var f=0;f<d.length;f++){var b=d[f];u.term=b;var g=t.TokenSet.fromClause(u),L=this.tokenSet.intersect(g).toArray();if(L.length===0&&u.presence===t.Query.presence.REQUIRED){for(var p=0;p<u.fields.length;p++){var m=u.fields[p];o[m]=t.Set.empty}break}for(var S=0;S<L.length;S++)for(var w=L[S],k=this.invertedIndex[w],_=k._index,p=0;p<u.fields.length;p++){var m=u.fields[p],H=k[m],A=Object.keys(H),j=w+"/"+m,$=new t.Set(A);if(u.presence==t.Query.presence.REQUIRED&&(v=v.union($),o[m]===void 0&&(o[m]=t.Set.complete)),u.presence==t.Query.presence.PROHIBITED){a[m]===void 0&&(a[m]=t.Set.empty),a[m]=a[m].union($);continue}if(i[m].upsert(_,u.boost,function(Qe,Ce){return Qe+Ce}),!s[j]){for(var N=0;N<A.length;N++){var q=A[N],P=new t.FieldRef(q,m),z=H[q],W;(W=r[P])===void 0?r[P]=new t.MatchData(w,m,z):W.add(w,m,z)}s[j]=!0}}}if(u.presence===t.Query.presence.REQUIRED)for(var p=0;p<u.fields.length;p++){var m=u.fields[p];o[m]=o[m].intersect(v)}}for(var V=t.Set.complete,R=t.Set.empty,l=0;l<this.fields.length;l++){var m=this.fields[l];o[m]&&(V=V.intersect(o[m])),a[m]&&(R=R.union(a[m]))}var c=Object.keys(r),y=[],I=Object.create(null);if(n.isNegated()){c=Object.keys(this.fieldVectors);for(var l=0;l<c.length;l++){var P=c[l],T=t.FieldRef.fromString(P);r[P]=new t.MatchData}}for(var l=0;l<c.length;l++){var T=t.FieldRef.fromString(c[l]),h=T.docRef;if(V.contains(h)&&!R.contains(h)){var x=this.fieldVectors[T],O=i[T.fieldName].similarity(x),M;if((M=I[h])!==void 0)M.score+=O,M.matchData.combine(r[T]);else{var E={ref:h,score:O,matchData:r[T]};I[h]=E,y.push(E)}}}return y.sort(function(Te,ke){return ke.score-Te.score})},t.Index.prototype.toJSON=function(){var e=Object.keys(this.invertedIndex).sort().map(function(r){return[r,this.invertedIndex[r]]},this),n=Object.keys(this.fieldVectors).map(function(r){return[r,this.fieldVectors[r].toJSON()]},this);return{version:t.version,fields:this.fields,fieldVectors:n,invertedIndex:e,pipeline:this.pipeline.toJSON()}},t.Index.load=function(e){var n={},r={},i=e.fieldVectors,s=Object.create(null),o=e.invertedIndex,a=new t.TokenSet.Builder,l=t.Pipeline.load(e.pipeline);e.version!=t.version&&t.utils.warn("Version mismatch when loading serialised index. Current version of lunr '"+t.version+"' does not match serialized index '"+e.version+"'");for(var u=0;u<i.length;u++){var d=i[u],v=d[0],f=d[1];r[v]=new t.Vector(f)}for(var u=0;u<o.length;u++){var d=o[u],b=d[0],g=d[1];a.insert(b),s[b]=g}return a.finish(),n.fields=e.fields,n.fieldVectors=r,n.invertedIndex=s,n.tokenSet=a.root,n.pipeline=l,new t.Index(n)};t.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=t.tokenizer,this.pipeline=new t.Pipeline,this.searchPipeline=new t.Pipeline,this.documentCount=0,this._b=.75,this._k1=1.2,this.termIndex=0,this.metadataWhitelist=[]},t.Builder.prototype.ref=function(e){this._ref=e},t.Builder.prototype.field=function(e,n){if(/\//.test(e))throw new RangeError("Field '"+e+"' contains illegal character '/'");this._fields[e]=n||{}},t.Builder.prototype.b=function(e){e<0?this._b=0:e>1?this._b=1:this._b=e},t.Builder.prototype.k1=function(e){this._k1=e},t.Builder.prototype.add=function(e,n){var r=e[this._ref],i=Object.keys(this._fields);this._documents[r]=n||{},this.documentCount+=1;for(var s=0;s<i.length;s++){var o=i[s],a=this._fields[o].extractor,l=a?a(e):e[o],u=this.tokenizer(l,{fields:[o]}),d=this.pipeline.run(u),v=new t.FieldRef(r,o),f=Object.create(null);this.fieldTermFrequencies[v]=f,this.fieldLengths[v]=0,this.fieldLengths[v]+=d.length;for(var b=0;b<d.length;b++){var g=d[b];if(f[g]==null&&(f[g]=0),f[g]+=1,this.invertedIndex[g]==null){var L=Object.create(null);L._index=this.termIndex,this.termIndex+=1;for(var p=0;p<i.length;p++)L[i[p]]=Object.create(null);this.invertedIndex[g]=L}this.invertedIndex[g][o][r]==null&&(this.invertedIndex[g][o][r]=Object.create(null));for(var m=0;m<this.metadataWhitelist.length;m++){var S=this.metadataWhitelist[m],w=g.metadata[S];this.invertedIndex[g][o][r][S]==null&&(this.invertedIndex[g][o][r][S]=[]),this.invertedIndex[g][o][r][S].push(w)}}}},t.Builder.prototype.calculateAverageFieldLengths=function(){for(var e=Object.keys(this.fieldLengths),n=e.length,r={},i={},s=0;s<n;s++){var o=t.FieldRef.fromString(e[s]),a=o.fieldName;i[a]||(i[a]=0),i[a]+=1,r[a]||(r[a]=0),r[a]+=this.fieldLengths[o]}for(var l=Object.keys(this._fields),s=0;s<l.length;s++){var u=l[s];r[u]=r[u]/i[u]}this.averageFieldLength=r},t.Builder.prototype.createFieldVectors=function(){for(var e={},n=Object.keys(this.fieldTermFrequencies),r=n.length,i=Object.create(null),s=0;s<r;s++){for(var o=t.FieldRef.fromString(n[s]),a=o.fieldName,l=this.fieldLengths[o],u=new t.Vector,d=this.fieldTermFrequencies[o],v=Object.keys(d),f=v.length,b=this._fields[a].boost||1,g=this._documents[o.docRef].boost||1,L=0;L<f;L++){var p=v[L],m=d[p],S=this.invertedIndex[p]._index,w,k,_;i[p]===void 0?(w=t.idf(this.invertedIndex[p],this.documentCount),i[p]=w):w=i[p],k=w*((this._k1+1)*m)/(this._k1*(1-this._b+this._b*(l/this.averageFieldLength[a]))+m),k*=b,k*=g,_=Math.round(k*1e3)/1e3,u.insert(S,_)}e[o]=u}this.fieldVectors=e},t.Builder.prototype.createTokenSet=function(){this.tokenSet=t.TokenSet.fromArray(Object.keys(this.invertedIndex).sort())},t.Builder.prototype.build=function(){return this.calculateAverageFieldLengths(),this.createFieldVectors(),this.createTokenSet(),new t.Index({invertedIndex:this.invertedIndex,fieldVectors:this.fieldVectors,tokenSet:this.tokenSet,fields:Object.keys(this._fields),pipeline:this.searchPipeline})},t.Builder.prototype.use=function(e){var n=Array.prototype.slice.call(arguments,1);n.unshift(this),e.apply(this,n)},t.MatchData=function(e,n,r){for(var i=Object.create(null),s=Object.keys(r||{}),o=0;o<s.length;o++){var a=s[o];i[a]=r[a].slice()}this.metadata=Object.create(null),e!==void 0&&(this.metadata[e]=Object.create(null),this.metadata[e][n]=i)},t.MatchData.prototype.combine=function(e){for(var n=Object.keys(e.metadata),r=0;r<n.length;r++){var i=n[r],s=Object.keys(e.metadata[i]);this.metadata[i]==null&&(this.metadata[i]=Object.create(null));for(var o=0;o<s.length;o++){var a=s[o],l=Object.keys(e.metadata[i][a]);this.metadata[i][a]==null&&(this.metadata[i][a]=Object.create(null));for(var u=0;u<l.length;u++){var d=l[u];this.metadata[i][a][d]==null?this.metadata[i][a][d]=e.metadata[i][a][d]:this.metadata[i][a][d]=this.metadata[i][a][d].concat(e.metadata[i][a][d])}}}},t.MatchData.prototype.add=function(e,n,r){if(!(e in this.metadata)){this.metadata[e]=Object.create(null),this.metadata[e][n]=r;return}if(!(n in this.metadata[e])){this.metadata[e][n]=r;return}for(var i=Object.keys(r),s=0;s<i.length;s++){var o=i[s];o in this.metadata[e][n]?this.metadata[e][n][o]=this.metadata[e][n][o].concat(r[o]):this.metadata[e][n][o]=r[o]}},t.Query=function(e){this.clauses=[],this.allFields=e},t.Query.wildcard=new String("*"),t.Query.wildcard.NONE=0,t.Query.wildcard.LEADING=1,t.Query.wildcard.TRAILING=2,t.Query.presence={OPTIONAL:1,REQUIRED:2,PROHIBITED:3},t.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=t.Query.wildcard.NONE),e.wildcard&t.Query.wildcard.LEADING&&e.term.charAt(0)!=t.Query.wildcard&&(e.term="*"+e.term),e.wildcard&t.Query.wildcard.TRAILING&&e.term.slice(-1)!=t.Query.wildcard&&(e.term=""+e.term+"*"),"presence"in e||(e.presence=t.Query.presence.OPTIONAL),this.clauses.push(e),this},t.Query.prototype.isNegated=function(){for(var e=0;e<this.clauses.length;e++)if(this.clauses[e].presence!=t.Query.presence.PROHIBITED)return!1;return!0},t.Query.prototype.term=function(e,n){if(Array.isArray(e))return e.forEach(function(i){this.term(i,t.utils.clone(n))},this),this;var r=n||{};return r.term=e.toString(),this.clause(r),this},t.QueryParseError=function(e,n,r){this.name="QueryParseError",this.message=e,this.start=n,this.end=r},t.QueryParseError.prototype=new Error,t.QueryLexer=function(e){this.lexemes=[],this.str=e,this.length=e.length,this.pos=0,this.start=0,this.escapeCharPositions=[]},t.QueryLexer.prototype.run=function(){for(var e=t.QueryLexer.lexText;e;)e=e(this)},t.QueryLexer.prototype.sliceString=function(){for(var e=[],n=this.start,r=this.pos,i=0;i<this.escapeCharPositions.length;i++)r=this.escapeCharPositions[i],e.push(this.str.slice(n,r)),n=r+1;return e.push(this.str.slice(n,this.pos)),this.escapeCharPositions.length=0,e.join("")},t.QueryLexer.prototype.emit=function(e){this.lexemes.push({type:e,str:this.sliceString(),start:this.start,end:this.pos}),this.start=this.pos},t.QueryLexer.prototype.escapeCharacter=function(){this.escapeCharPositions.push(this.pos-1),this.pos+=1},t.QueryLexer.prototype.next=function(){if(this.pos>=this.length)return t.QueryLexer.EOS;var e=this.str.charAt(this.pos);return this.pos+=1,e},t.QueryLexer.prototype.width=function(){return this.pos-this.start},t.QueryLexer.prototype.ignore=function(){this.start==this.pos&&(this.pos+=1),this.start=this.pos},t.QueryLexer.prototype.backup=function(){this.pos-=1},t.QueryLexer.prototype.acceptDigitRun=function(){var e,n;do e=this.next(),n=e.charCodeAt(0);while(n>47&&n<58);e!=t.QueryLexer.EOS&&this.backup()},t.QueryLexer.prototype.more=function(){return this.pos<this.length},t.QueryLexer.EOS="EOS",t.QueryLexer.FIELD="FIELD",t.QueryLexer.TERM="TERM",t.QueryLexer.EDIT_DISTANCE="EDIT_DISTANCE",t.QueryLexer.BOOST="BOOST",t.QueryLexer.PRESENCE="PRESENCE",t.QueryLexer.lexField=function(e){return e.backup(),e.emit(t.QueryLexer.FIELD),e.ignore(),t.QueryLexer.lexText},t.QueryLexer.lexTerm=function(e){if(e.width()>1&&(e.backup(),e.emit(t.QueryLexer.TERM)),e.ignore(),e.more())return t.QueryLexer.lexText},t.QueryLexer.lexEditDistance=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(t.QueryLexer.EDIT_DISTANCE),t.QueryLexer.lexText},t.QueryLexer.lexBoost=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(t.QueryLexer.BOOST),t.QueryLexer.lexText},t.QueryLexer.lexEOS=function(e){e.width()>0&&e.emit(t.QueryLexer.TERM)},t.QueryLexer.termSeparator=t.tokenizer.separator,t.QueryLexer.lexText=function(e){for(;;){var n=e.next();if(n==t.QueryLexer.EOS)return t.QueryLexer.lexEOS;if(n.charCodeAt(0)==92){e.escapeCharacter();continue}if(n==":")return t.QueryLexer.lexField;if(n=="~")return e.backup(),e.width()>0&&e.emit(t.QueryLexer.TERM),t.QueryLexer.lexEditDistance;if(n=="^")return e.backup(),e.width()>0&&e.emit(t.QueryLexer.TERM),t.QueryLexer.lexBoost;if(n=="+"&&e.width()===1||n=="-"&&e.width()===1)return e.emit(t.QueryLexer.PRESENCE),t.QueryLexer.lexText;if(n.match(t.QueryLexer.termSeparator))return t.QueryLexer.lexTerm}},t.QueryParser=function(e,n){this.lexer=new t.QueryLexer(e),this.query=n,this.currentClause={},this.lexemeIdx=0},t.QueryParser.prototype.parse=function(){this.lexer.run(),this.lexemes=this.lexer.lexemes;for(var e=t.QueryParser.parseClause;e;)e=e(this);return this.query},t.QueryParser.prototype.peekLexeme=function(){return this.lexemes[this.lexemeIdx]},t.QueryParser.prototype.consumeLexeme=function(){var e=this.peekLexeme();return this.lexemeIdx+=1,e},t.QueryParser.prototype.nextClause=function(){var e=this.currentClause;this.query.clause(e),this.currentClause={}},t.QueryParser.parseClause=function(e){var n=e.peekLexeme();if(n!=null)switch(n.type){case t.QueryLexer.PRESENCE:return t.QueryParser.parsePresence;case t.QueryLexer.FIELD:return t.QueryParser.parseField;case t.QueryLexer.TERM:return t.QueryParser.parseTerm;default:var r="expected either a field or a term, found "+n.type;throw n.str.length>=1&&(r+=" with value '"+n.str+"'"),new t.QueryParseError(r,n.start,n.end)}},t.QueryParser.parsePresence=function(e){var n=e.consumeLexeme();if(n!=null){switch(n.str){case"-":e.currentClause.presence=t.Query.presence.PROHIBITED;break;case"+":e.currentClause.presence=t.Query.presence.REQUIRED;break;default:var r="unrecognised presence operator'"+n.str+"'";throw new t.QueryParseError(r,n.start,n.end)}var i=e.peekLexeme();if(i==null){var r="expecting term or field, found nothing";throw new t.QueryParseError(r,n.start,n.end)}switch(i.type){case t.QueryLexer.FIELD:return t.QueryParser.parseField;case t.QueryLexer.TERM:return t.QueryParser.parseTerm;default:var r="expecting term or field, found '"+i.type+"'";throw new t.QueryParseError(r,i.start,i.end)}}},t.QueryParser.parseField=function(e){var n=e.consumeLexeme();if(n!=null){if(e.query.allFields.indexOf(n.str)==-1){var r=e.query.allFields.map(function(o){return"'"+o+"'"}).join(", "),i="unrecognised field '"+n.str+"', possible fields: "+r;throw new t.QueryParseError(i,n.start,n.end)}e.currentClause.fields=[n.str];var s=e.peekLexeme();if(s==null){var i="expecting term, found nothing";throw new t.QueryParseError(i,n.start,n.end)}switch(s.type){case t.QueryLexer.TERM:return t.QueryParser.parseTerm;default:var i="expecting term, found '"+s.type+"'";throw new t.QueryParseError(i,s.start,s.end)}}},t.QueryParser.parseTerm=function(e){var n=e.consumeLexeme();if(n!=null){e.currentClause.term=n.str.toLowerCase(),n.str.indexOf("*")!=-1&&(e.currentClause.usePipeline=!1);var r=e.peekLexeme();if(r==null){e.nextClause();return}switch(r.type){case t.QueryLexer.TERM:return e.nextClause(),t.QueryParser.parseTerm;case t.QueryLexer.FIELD:return e.nextClause(),t.QueryParser.parseField;case t.QueryLexer.EDIT_DISTANCE:return t.QueryParser.parseEditDistance;case t.QueryLexer.BOOST:return t.QueryParser.parseBoost;case t.QueryLexer.PRESENCE:return e.nextClause(),t.QueryParser.parsePresence;default:var i="Unexpected lexeme type '"+r.type+"'";throw new t.QueryParseError(i,r.start,r.end)}}},t.QueryParser.parseEditDistance=function(e){var n=e.consumeLexeme();if(n!=null){var r=parseInt(n.str,10);if(isNaN(r)){var i="edit distance must be numeric";throw new t.QueryParseError(i,n.start,n.end)}e.currentClause.editDistance=r;var s=e.peekLexeme();if(s==null){e.nextClause();return}switch(s.type){case t.QueryLexer.TERM:return e.nextClause(),t.QueryParser.parseTerm;case t.QueryLexer.FIELD:return e.nextClause(),t.QueryParser.parseField;case t.QueryLexer.EDIT_DISTANCE:return t.QueryParser.parseEditDistance;case t.QueryLexer.BOOST:return t.QueryParser.parseBoost;case t.QueryLexer.PRESENCE:return 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e=[],n=[{prefix:"",node:this}];n.length;){var r=n.pop(),i=Object.keys(r.node.edges),s=i.length;r.node.final&&(r.prefix.charAt(0),e.push(r.prefix));for(var o=0;o<s;o++){var a=i[o];n.push({prefix:r.prefix.concat(a),node:r.node.edges[a]})}}return e},t.TokenSet.prototype.toString=function(){if(this._str)return this._str;for(var e=this.final?"1":"0",n=Object.keys(this.edges).sort(),r=n.length,i=0;i<r;i++){var s=n[i],o=this.edges[s];e=e+s+o.id}return e},t.TokenSet.prototype.intersect=function(e){for(var n=new t.TokenSet,r=void 0,i=[{qNode:e,output:n,node:this}];i.length;){r=i.pop();for(var s=Object.keys(r.qNode.edges),o=s.length,a=Object.keys(r.node.edges),u=a.length,l=0;l<o;l++)for(var h=s[l],m=0;m<u;m++){var v=a[m];if(v==h||h=="*"){var b=r.node.edges[v],y=r.qNode.edges[h],E=b.final&&y.final,p=void 0;v in r.output.edges?(p=r.output.edges[v],p.final=p.final||E):(p=new t.TokenSet,p.final=E,r.output.edges[v]=p),i.push({qNode:y,output:p,node:b})}}}return n},t.TokenSet.Builder=function(){this.previousWord="",this.root=new t.TokenSet,this.uncheckedNodes=[],this.minimizedNodes={}},t.TokenSet.Builder.prototype.insert=function(e){var n,r=0;if(e<this.previousWord)throw new Error("Out of order word insertion");for(var i=0;i<e.length&&i<this.previousWord.length&&e[i]==this.previousWord[i];i++)r++;this.minimize(r),this.uncheckedNodes.length==0?n=this.root:n=this.uncheckedNodes[this.uncheckedNodes.length-1].child;for(var i=r;i<e.length;i++){var s=new t.TokenSet,o=e[i];n.edges[o]=s,this.uncheckedNodes.push({parent:n,char:o,child:s}),n=s}n.final=!0,this.previousWord=e},t.TokenSet.Builder.prototype.finish=function(){this.minimize(0)},t.TokenSet.Builder.prototype.minimize=function(e){for(var n=this.uncheckedNodes.length-1;n>=e;n--){var r=this.uncheckedNodes[n],i=r.child.toString();i in this.minimizedNodes?r.parent.edges[r.char]=this.minimizedNodes[i]:(r.child._str=i,this.minimizedNodes[i]=r.child),this.uncheckedNodes.pop()}};t.Index=function(e){this.invertedIndex=e.invertedIndex,this.fieldVectors=e.fieldVectors,this.tokenSet=e.tokenSet,this.fields=e.fields,this.pipeline=e.pipeline},t.Index.prototype.search=function(e){return this.query(function(n){var r=new t.QueryParser(e,n);r.parse()})},t.Index.prototype.query=function(e){for(var n=new t.Query(this.fields),r=Object.create(null),i=Object.create(null),s=Object.create(null),o=Object.create(null),a=Object.create(null),u=0;u<this.fields.length;u++)i[this.fields[u]]=new t.Vector;e.call(n,n);for(var u=0;u<n.clauses.length;u++){var l=n.clauses[u],h=null,m=t.Set.empty;l.usePipeline?h=this.pipeline.runString(l.term,{fields:l.fields}):h=[l.term];for(var v=0;v<h.length;v++){var b=h[v];l.term=b;var y=t.TokenSet.fromClause(l),E=this.tokenSet.intersect(y).toArray();if(E.length===0&&l.presence===t.Query.presence.REQUIRED){for(var p=0;p<l.fields.length;p++){var f=l.fields[p];o[f]=t.Set.empty}break}for(var S=0;S<E.length;S++)for(var w=E[S],k=this.invertedIndex[w],_=k._index,p=0;p<l.fields.length;p++){var f=l.fields[p],z=k[f],H=Object.keys(z),q=w+"/"+f,$=new t.Set(H);if(l.presence==t.Query.presence.REQUIRED&&(m=m.union($),o[f]===void 0&&(o[f]=t.Set.complete)),l.presence==t.Query.presence.PROHIBITED){a[f]===void 0&&(a[f]=t.Set.empty),a[f]=a[f].union($);continue}if(i[f].upsert(_,l.boost,function(Ie,ke){return Ie+ke}),!s[q]){for(var V=0;V<H.length;V++){var W=H[V],P=new t.FieldRef(W,f),U=z[W],G;(G=r[P])===void 0?r[P]=new t.MatchData(w,f,U):G.add(w,f,U)}s[q]=!0}}}if(l.presence===t.Query.presence.REQUIRED)for(var p=0;p<l.fields.length;p++){var f=l.fields[p];o[f]=o[f].intersect(m)}}for(var N=t.Set.complete,M=t.Set.empty,u=0;u<this.fields.length;u++){var f=this.fields[u];o[f]&&(N=N.intersect(o[f])),a[f]&&(M=M.union(a[f]))}var c=Object.keys(r),g=[],C=Object.create(null);if(n.isNegated()){c=Object.keys(this.fieldVectors);for(var u=0;u<c.length;u++){var P=c[u],T=t.FieldRef.fromString(P);r[P]=new t.MatchData}}for(var u=0;u<c.length;u++){var T=t.FieldRef.fromString(c[u]),d=T.docRef;if(N.contains(d)&&!M.contains(d)){var x=this.fieldVectors[T],O=i[T.fieldName].similarity(x),D;if((D=C[d])!==void 0)D.score+=O,D.matchData.combine(r[T]);else{var L={ref:d,score:O,matchData:r[T]};C[d]=L,g.push(L)}}}return g.sort(function(Se,Te){return Te.score-Se.score})},t.Index.prototype.toJSON=function(){var e=Object.keys(this.invertedIndex).sort().map(function(r){return[r,this.invertedIndex[r]]},this),n=Object.keys(this.fieldVectors).map(function(r){return[r,this.fieldVectors[r].toJSON()]},this);return{version:t.version,fields:this.fields,fieldVectors:n,invertedIndex:e,pipeline:this.pipeline.toJSON()}},t.Index.load=function(e){var n={},r={},i=e.fieldVectors,s=Object.create(null),o=e.invertedIndex,a=new t.TokenSet.Builder,u=t.Pipeline.load(e.pipeline);e.version!=t.version&&t.utils.warn("Version mismatch when loading serialised index. Current version of lunr '"+t.version+"' does not match serialized index '"+e.version+"'");for(var l=0;l<i.length;l++){var h=i[l],m=h[0],v=h[1];r[m]=new t.Vector(v)}for(var l=0;l<o.length;l++){var h=o[l],b=h[0],y=h[1];a.insert(b),s[b]=y}return a.finish(),n.fields=e.fields,n.fieldVectors=r,n.invertedIndex=s,n.tokenSet=a.root,n.pipeline=u,new t.Index(n)};t.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=t.tokenizer,this.pipeline=new t.Pipeline,this.searchPipeline=new t.Pipeline,this.documentCount=0,this._b=.75,this._k1=1.2,this.termIndex=0,this.metadataWhitelist=[]},t.Builder.prototype.ref=function(e){this._ref=e},t.Builder.prototype.field=function(e,n){if(/\//.test(e))throw new RangeError("Field '"+e+"' contains illegal character '/'");this._fields[e]=n||{}},t.Builder.prototype.b=function(e){e<0?this._b=0:e>1?this._b=1:this._b=e},t.Builder.prototype.k1=function(e){this._k1=e},t.Builder.prototype.add=function(e,n){var r=e[this._ref],i=Object.keys(this._fields);this._documents[r]=n||{},this.documentCount+=1;for(var s=0;s<i.length;s++){var o=i[s],a=this._fields[o].extractor,u=a?a(e):e[o],l=this.tokenizer(u,{fields:[o]}),h=this.pipeline.run(l),m=new t.FieldRef(r,o),v=Object.create(null);this.fieldTermFrequencies[m]=v,this.fieldLengths[m]=0,this.fieldLengths[m]+=h.length;for(var b=0;b<h.length;b++){var y=h[b];if(v[y]==null&&(v[y]=0),v[y]+=1,this.invertedIndex[y]==null){var E=Object.create(null);E._index=this.termIndex,this.termIndex+=1;for(var p=0;p<i.length;p++)E[i[p]]=Object.create(null);this.invertedIndex[y]=E}this.invertedIndex[y][o][r]==null&&(this.invertedIndex[y][o][r]=Object.create(null));for(var f=0;f<this.metadataWhitelist.length;f++){var S=this.metadataWhitelist[f],w=y.metadata[S];this.invertedIndex[y][o][r][S]==null&&(this.invertedIndex[y][o][r][S]=[]),this.invertedIndex[y][o][r][S].push(w)}}}},t.Builder.prototype.calculateAverageFieldLengths=function(){for(var e=Object.keys(this.fieldLengths),n=e.length,r={},i={},s=0;s<n;s++){var o=t.FieldRef.fromString(e[s]),a=o.fieldName;i[a]||(i[a]=0),i[a]+=1,r[a]||(r[a]=0),r[a]+=this.fieldLengths[o]}for(var u=Object.keys(this._fields),s=0;s<u.length;s++){var l=u[s];r[l]=r[l]/i[l]}this.averageFieldLength=r},t.Builder.prototype.createFieldVectors=function(){for(var e={},n=Object.keys(this.fieldTermFrequencies),r=n.length,i=Object.create(null),s=0;s<r;s++){for(var o=t.FieldRef.fromString(n[s]),a=o.fieldName,u=this.fieldLengths[o],l=new t.Vector,h=this.fieldTermFrequencies[o],m=Object.keys(h),v=m.length,b=this._fields[a].boost||1,y=this._documents[o.docRef].boost||1,E=0;E<v;E++){var p=m[E],f=h[p],S=this.invertedIndex[p]._index,w,k,_;i[p]===void 0?(w=t.idf(this.invertedIndex[p],this.documentCount),i[p]=w):w=i[p],k=w*((this._k1+1)*f)/(this._k1*(1-this._b+this._b*(u/this.averageFieldLength[a]))+f),k*=b,k*=y,_=Math.round(k*1e3)/1e3,l.insert(S,_)}e[o]=l}this.fieldVectors=e},t.Builder.prototype.createTokenSet=function(){this.tokenSet=t.TokenSet.fromArray(Object.keys(this.invertedIndex).sort())},t.Builder.prototype.build=function(){return this.calculateAverageFieldLengths(),this.createFieldVectors(),this.createTokenSet(),new t.Index({invertedIndex:this.invertedIndex,fieldVectors:this.fieldVectors,tokenSet:this.tokenSet,fields:Object.keys(this._fields),pipeline:this.searchPipeline})},t.Builder.prototype.use=function(e){var n=Array.prototype.slice.call(arguments,1);n.unshift(this),e.apply(this,n)},t.MatchData=function(e,n,r){for(var i=Object.create(null),s=Object.keys(r||{}),o=0;o<s.length;o++){var a=s[o];i[a]=r[a].slice()}this.metadata=Object.create(null),e!==void 0&&(this.metadata[e]=Object.create(null),this.metadata[e][n]=i)},t.MatchData.prototype.combine=function(e){for(var n=Object.keys(e.metadata),r=0;r<n.length;r++){var i=n[r],s=Object.keys(e.metadata[i]);this.metadata[i]==null&&(this.metadata[i]=Object.create(null));for(var o=0;o<s.length;o++){var a=s[o],u=Object.keys(e.metadata[i][a]);this.metadata[i][a]==null&&(this.metadata[i][a]=Object.create(null));for(var l=0;l<u.length;l++){var h=u[l];this.metadata[i][a][h]==null?this.metadata[i][a][h]=e.metadata[i][a][h]:this.metadata[i][a][h]=this.metadata[i][a][h].concat(e.metadata[i][a][h])}}}},t.MatchData.prototype.add=function(e,n,r){if(!(e in this.metadata)){this.metadata[e]=Object.create(null),this.metadata[e][n]=r;return}if(!(n in this.metadata[e])){this.metadata[e][n]=r;return}for(var i=Object.keys(r),s=0;s<i.length;s++){var o=i[s];o in this.metadata[e][n]?this.metadata[e][n][o]=this.metadata[e][n][o].concat(r[o]):this.metadata[e][n][o]=r[o]}},t.Query=function(e){this.clauses=[],this.allFields=e},t.Query.wildcard=new String("*"),t.Query.wildcard.NONE=0,t.Query.wildcard.LEADING=1,t.Query.wildcard.TRAILING=2,t.Query.presence={OPTIONAL:1,REQUIRED:2,PROHIBITED:3},t.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=t.Query.wildcard.NONE),e.wildcard&t.Query.wildcard.LEADING&&e.term.charAt(0)!=t.Query.wildcard&&(e.term="*"+e.term),e.wildcard&t.Query.wildcard.TRAILING&&e.term.slice(-1)!=t.Query.wildcard&&(e.term=""+e.term+"*"),"presence"in e||(e.presence=t.Query.presence.OPTIONAL),this.clauses.push(e),this},t.Query.prototype.isNegated=function(){for(var e=0;e<this.clauses.length;e++)if(this.clauses[e].presence!=t.Query.presence.PROHIBITED)return!1;return!0},t.Query.prototype.term=function(e,n){if(Array.isArray(e))return e.forEach(function(i){this.term(i,t.utils.clone(n))},this),this;var r=n||{};return r.term=e.toString(),this.clause(r),this},t.QueryParseError=function(e,n,r){this.name="QueryParseError",this.message=e,this.start=n,this.end=r},t.QueryParseError.prototype=new Error,t.QueryLexer=function(e){this.lexemes=[],this.str=e,this.length=e.length,this.pos=0,this.start=0,this.escapeCharPositions=[]},t.QueryLexer.prototype.run=function(){for(var e=t.QueryLexer.lexText;e;)e=e(this)},t.QueryLexer.prototype.sliceString=function(){for(var e=[],n=this.start,r=this.pos,i=0;i<this.escapeCharPositions.length;i++)r=this.escapeCharPositions[i],e.push(this.str.slice(n,r)),n=r+1;return e.push(this.str.slice(n,this.pos)),this.escapeCharPositions.length=0,e.join("")},t.QueryLexer.prototype.emit=function(e){this.lexemes.push({type:e,str:this.sliceString(),start:this.start,end:this.pos}),this.start=this.pos},t.QueryLexer.prototype.escapeCharacter=function(){this.escapeCharPositions.push(this.pos-1),this.pos+=1},t.QueryLexer.prototype.next=function(){if(this.pos>=this.length)return t.QueryLexer.EOS;var e=this.str.charAt(this.pos);return this.pos+=1,e},t.QueryLexer.prototype.width=function(){return this.pos-this.start},t.QueryLexer.prototype.ignore=function(){this.start==this.pos&&(this.pos+=1),this.start=this.pos},t.QueryLexer.prototype.backup=function(){this.pos-=1},t.QueryLexer.prototype.acceptDigitRun=function(){var e,n;do e=this.next(),n=e.charCodeAt(0);while(n>47&&n<58);e!=t.QueryLexer.EOS&&this.backup()},t.QueryLexer.prototype.more=function(){return this.pos<this.length},t.QueryLexer.EOS="EOS",t.QueryLexer.FIELD="FIELD",t.QueryLexer.TERM="TERM",t.QueryLexer.EDIT_DISTANCE="EDIT_DISTANCE",t.QueryLexer.BOOST="BOOST",t.QueryLexer.PRESENCE="PRESENCE",t.QueryLexer.lexField=function(e){return e.backup(),e.emit(t.QueryLexer.FIELD),e.ignore(),t.QueryLexer.lexText},t.QueryLexer.lexTerm=function(e){if(e.width()>1&&(e.backup(),e.emit(t.QueryLexer.TERM)),e.ignore(),e.more())return t.QueryLexer.lexText},t.QueryLexer.lexEditDistance=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(t.QueryLexer.EDIT_DISTANCE),t.QueryLexer.lexText},t.QueryLexer.lexBoost=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(t.QueryLexer.BOOST),t.QueryLexer.lexText},t.QueryLexer.lexEOS=function(e){e.width()>0&&e.emit(t.QueryLexer.TERM)},t.QueryLexer.termSeparator=t.tokenizer.separator,t.QueryLexer.lexText=function(e){for(;;){var n=e.next();if(n==t.QueryLexer.EOS)return t.QueryLexer.lexEOS;if(n.charCodeAt(0)==92){e.escapeCharacter();continue}if(n==":")return t.QueryLexer.lexField;if(n=="~")return e.backup(),e.width()>0&&e.emit(t.QueryLexer.TERM),t.QueryLexer.lexEditDistance;if(n=="^")return e.backup(),e.width()>0&&e.emit(t.QueryLexer.TERM),t.QueryLexer.lexBoost;if(n=="+"&&e.width()===1||n=="-"&&e.width()===1)return e.emit(t.QueryLexer.PRESENCE),t.QueryLexer.lexText;if(n.match(t.QueryLexer.termSeparator))return t.QueryLexer.lexTerm}},t.QueryParser=function(e,n){this.lexer=new t.QueryLexer(e),this.query=n,this.currentClause={},this.lexemeIdx=0},t.QueryParser.prototype.parse=function(){this.lexer.run(),this.lexemes=this.lexer.lexemes;for(var e=t.QueryParser.parseClause;e;)e=e(this);return this.query},t.QueryParser.prototype.peekLexeme=function(){return this.lexemes[this.lexemeIdx]},t.QueryParser.prototype.consumeLexeme=function(){var e=this.peekLexeme();return this.lexemeIdx+=1,e},t.QueryParser.prototype.nextClause=function(){var e=this.currentClause;this.query.clause(e),this.currentClause={}},t.QueryParser.parseClause=function(e){var n=e.peekLexeme();if(n!=null)switch(n.type){case t.QueryLexer.PRESENCE:return t.QueryParser.parsePresence;case t.QueryLexer.FIELD:return t.QueryParser.parseField;case t.QueryLexer.TERM:return t.QueryParser.parseTerm;default:var r="expected either a field or a term, found "+n.type;throw n.str.length>=1&&(r+=" with value '"+n.str+"'"),new t.QueryParseError(r,n.start,n.end)}},t.QueryParser.parsePresence=function(e){var n=e.consumeLexeme();if(n!=null){switch(n.str){case"-":e.currentClause.presence=t.Query.presence.PROHIBITED;break;case"+":e.currentClause.presence=t.Query.presence.REQUIRED;break;default:var r="unrecognised presence operator'"+n.str+"'";throw new t.QueryParseError(r,n.start,n.end)}var i=e.peekLexeme();if(i==null){var r="expecting term or field, found nothing";throw new t.QueryParseError(r,n.start,n.end)}switch(i.type){case t.QueryLexer.FIELD:return t.QueryParser.parseField;case t.QueryLexer.TERM:return t.QueryParser.parseTerm;default:var r="expecting term or field, found '"+i.type+"'";throw new t.QueryParseError(r,i.start,i.end)}}},t.QueryParser.parseField=function(e){var n=e.consumeLexeme();if(n!=null){if(e.query.allFields.indexOf(n.str)==-1){var r=e.query.allFields.map(function(o){return"'"+o+"'"}).join(", "),i="unrecognised field '"+n.str+"', possible fields: "+r;throw new t.QueryParseError(i,n.start,n.end)}e.currentClause.fields=[n.str];var s=e.peekLexeme();if(s==null){var i="expecting term, found nothing";throw new t.QueryParseError(i,n.start,n.end)}switch(s.type){case t.QueryLexer.TERM:return t.QueryParser.parseTerm;default:var i="expecting term, found '"+s.type+"'";throw new t.QueryParseError(i,s.start,s.end)}}},t.QueryParser.parseTerm=function(e){var n=e.consumeLexeme();if(n!=null){e.currentClause.term=n.str.toLowerCase(),n.str.indexOf("*")!=-1&&(e.currentClause.usePipeline=!1);var r=e.peekLexeme();if(r==null){e.nextClause();return}switch(r.type){case t.QueryLexer.TERM:return e.nextClause(),t.QueryParser.parseTerm;case t.QueryLexer.FIELD:return e.nextClause(),t.QueryParser.parseField;case t.QueryLexer.EDIT_DISTANCE:return t.QueryParser.parseEditDistance;case t.QueryLexer.BOOST:return t.QueryParser.parseBoost;case t.QueryLexer.PRESENCE:return e.nextClause(),t.QueryParser.parsePresence;default:var i="Unexpected lexeme type '"+r.type+"'";throw new t.QueryParseError(i,r.start,r.end)}}},t.QueryParser.parseEditDistance=function(e){var n=e.consumeLexeme();if(n!=null){var r=parseInt(n.str,10);if(isNaN(r)){var i="edit distance must be numeric";throw new t.QueryParseError(i,n.start,n.end)}e.currentClause.editDistance=r;var s=e.peekLexeme();if(s==null){e.nextClause();return}switch(s.type){case t.QueryLexer.TERM:return e.nextClause(),t.QueryParser.parseTerm;case t.QueryLexer.FIELD:return e.nextClause(),t.QueryParser.parseField;case t.QueryLexer.EDIT_DISTANCE:return t.QueryParser.parseEditDistance;case t.QueryLexer.BOOST:return t.QueryParser.parseBoost;case t.QueryLexer.PRESENCE:return e.nextClause(),t.QueryParser.parsePresence;default:var i="Unexpected lexeme type '"+s.type+"'";throw new t.QueryParseError(i,s.start,s.end)}}},t.QueryParser.parseBoost=function(e){var n=e.consumeLexeme();if(n!=null){var r=parseInt(n.str,10);if(isNaN(r)){var i="boost must be numeric";throw new t.QueryParseError(i,n.start,n.end)}e.currentClause.boost=r;var s=e.peekLexeme();if(s==null){e.nextClause();return}switch(s.type){case t.QueryLexer.TERM:return e.nextClause(),t.QueryParser.parseTerm;case t.QueryLexer.FIELD:return e.nextClause(),t.QueryParser.parseField;case t.QueryLexer.EDIT_DISTANCE:return t.QueryParser.parseEditDistance;case t.QueryLexer.BOOST:return t.QueryParser.parseBoost;case t.QueryLexer.PRESENCE:return e.nextClause(),t.QueryParser.parsePresence;default:var i="Unexpected lexeme type '"+s.type+"'";throw new t.QueryParseError(i,s.start,s.end)}}},function(e,n){typeof define=="function"&&define.amd?define(n):typeof ce=="object"?he.exports=n():e.lunr=n()}(this,function(){return 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Identical operands Warning documentation
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c=Object.keys(r),y=[],I=Object.create(null);if(n.isNegated()){c=Object.keys(this.fieldVectors);for(var l=0;l<c.length;l++){var P=c[l],T=t.FieldRef.fromString(P);r[P]=new t.MatchData}}for(var l=0;l<c.length;l++){var T=t.FieldRef.fromString(c[l]),h=T.docRef;if(V.contains(h)&&!R.contains(h)){var x=this.fieldVectors[T],O=i[T.fieldName].similarity(x),M;if((M=I[h])!==void 0)M.score+=O,M.matchData.combine(r[T]);else{var E={ref:h,score:O,matchData:r[T]};I[h]=E,y.push(E)}}}return y.sort(function(Te,ke){return ke.score-Te.score})},t.Index.prototype.toJSON=function(){var e=Object.keys(this.invertedIndex).sort().map(function(r){return[r,this.invertedIndex[r]]},this),n=Object.keys(this.fieldVectors).map(function(r){return[r,this.fieldVectors[r].toJSON()]},this);return{version:t.version,fields:this.fields,fieldVectors:n,invertedIndex:e,pipeline:this.pipeline.toJSON()}},t.Index.load=function(e){var n={},r={},i=e.fieldVectors,s=Object.create(null),o=e.invertedIndex,a=new t.TokenSet.Builder,l=t.Pipeline.load(e.pipeline);e.version!=t.version&&t.utils.warn("Version mismatch when loading serialised index. Current version of lunr '"+t.version+"' does not match serialized index '"+e.version+"'");for(var u=0;u<i.length;u++){var d=i[u],v=d[0],f=d[1];r[v]=new t.Vector(f)}for(var u=0;u<o.length;u++){var d=o[u],b=d[0],g=d[1];a.insert(b),s[b]=g}return a.finish(),n.fields=e.fields,n.fieldVectors=r,n.invertedIndex=s,n.tokenSet=a.root,n.pipeline=l,new t.Index(n)};t.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=t.tokenizer,this.pipeline=new t.Pipeline,this.searchPipeline=new t.Pipeline,this.documentCount=0,this._b=.75,this._k1=1.2,this.termIndex=0,this.metadataWhitelist=[]},t.Builder.prototype.ref=function(e){this._ref=e},t.Builder.prototype.field=function(e,n){if(/\//.test(e))throw new RangeError("Field '"+e+"' contains illegal character '/'");this._fields[e]=n||{}},t.Builder.prototype.b=function(e){e<0?this._b=0:e>1?this._b=1:this._b=e},t.Builder.prototype.k1=function(e){this._k1=e},t.Builder.prototype.add=function(e,n){var r=e[this._ref],i=Object.keys(this._fields);this._documents[r]=n||{},this.documentCount+=1;for(var s=0;s<i.length;s++){var o=i[s],a=this._fields[o].extractor,l=a?a(e):e[o],u=this.tokenizer(l,{fields:[o]}),d=this.pipeline.run(u),v=new t.FieldRef(r,o),f=Object.create(null);this.fieldTermFrequencies[v]=f,this.fieldLengths[v]=0,this.fieldLengths[v]+=d.length;for(var b=0;b<d.length;b++){var g=d[b];if(f[g]==null&&(f[g]=0),f[g]+=1,this.invertedIndex[g]==null){var L=Object.create(null);L._index=this.termIndex,this.termIndex+=1;for(var p=0;p<i.length;p++)L[i[p]]=Object.create(null);this.invertedIndex[g]=L}this.invertedIndex[g][o][r]==null&&(this.invertedIndex[g][o][r]=Object.create(null));for(var m=0;m<this.metadataWhitelist.length;m++){var S=this.metadataWhitelist[m],w=g.metadata[S];this.invertedIndex[g][o][r][S]==null&&(this.invertedIndex[g][o][r][S]=[]),this.invertedIndex[g][o][r][S].push(w)}}}},t.Builder.prototype.calculateAverageFieldLengths=function(){for(var e=Object.keys(this.fieldLengths),n=e.length,r={},i={},s=0;s<n;s++){var o=t.FieldRef.fromString(e[s]),a=o.fieldName;i[a]||(i[a]=0),i[a]+=1,r[a]||(r[a]=0),r[a]+=this.fieldLengths[o]}for(var l=Object.keys(this._fields),s=0;s<l.length;s++){var u=l[s];r[u]=r[u]/i[u]}this.averageFieldLength=r},t.Builder.prototype.createFieldVectors=function(){for(var e={},n=Object.keys(this.fieldTermFrequencies),r=n.length,i=Object.create(null),s=0;s<r;s++){for(var o=t.FieldRef.fromString(n[s]),a=o.fieldName,l=this.fieldLengths[o],u=new t.Vector,d=this.fieldTermFrequencies[o],v=Object.keys(d),f=v.length,b=this._fields[a].boost||1,g=this._documents[o.docRef].boost||1,L=0;L<f;L++){var p=v[L],m=d[p],S=this.invertedIndex[p]._index,w,k,_;i[p]===void 0?(w=t.idf(this.invertedIndex[p],this.documentCount),i[p]=w):w=i[p],k=w*((this._k1+1)*m)/(this._k1*(1-this._b+this._b*(l/this.averageFieldLength[a]))+m),k*=b,k*=g,_=Math.round(k*1e3)/1e3,u.insert(S,_)}e[o]=u}this.fieldVectors=e},t.Builder.prototype.createTokenSet=function(){this.tokenSet=t.TokenSet.fromArray(Object.keys(this.invertedIndex).sort())},t.Builder.prototype.build=function(){return this.calculateAverageFieldLengths(),this.createFieldVectors(),this.createTokenSet(),new t.Index({invertedIndex:this.invertedIndex,fieldVectors:this.fieldVectors,tokenSet:this.tokenSet,fields:Object.keys(this._fields),pipeline:this.searchPipeline})},t.Builder.prototype.use=function(e){var n=Array.prototype.slice.call(arguments,1);n.unshift(this),e.apply(this,n)},t.MatchData=function(e,n,r){for(var i=Object.create(null),s=Object.keys(r||{}),o=0;o<s.length;o++){var a=s[o];i[a]=r[a].slice()}this.metadata=Object.create(null),e!==void 0&&(this.metadata[e]=Object.create(null),this.metadata[e][n]=i)},t.MatchData.prototype.combine=function(e){for(var n=Object.keys(e.metadata),r=0;r<n.length;r++){var i=n[r],s=Object.keys(e.metadata[i]);this.metadata[i]==null&&(this.metadata[i]=Object.create(null));for(var o=0;o<s.length;o++){var a=s[o],l=Object.keys(e.metadata[i][a]);this.metadata[i][a]==null&&(this.metadata[i][a]=Object.create(null));for(var u=0;u<l.length;u++){var d=l[u];this.metadata[i][a][d]==null?this.metadata[i][a][d]=e.metadata[i][a][d]:this.metadata[i][a][d]=this.metadata[i][a][d].concat(e.metadata[i][a][d])}}}},t.MatchData.prototype.add=function(e,n,r){if(!(e in this.metadata)){this.metadata[e]=Object.create(null),this.metadata[e][n]=r;return}if(!(n in this.metadata[e])){this.metadata[e][n]=r;return}for(var i=Object.keys(r),s=0;s<i.length;s++){var o=i[s];o in this.metadata[e][n]?this.metadata[e][n][o]=this.metadata[e][n][o].concat(r[o]):this.metadata[e][n][o]=r[o]}},t.Query=function(e){this.clauses=[],this.allFields=e},t.Query.wildcard=new String("*"),t.Query.wildcard.NONE=0,t.Query.wildcard.LEADING=1,t.Query.wildcard.TRAILING=2,t.Query.presence={OPTIONAL:1,REQUIRED:2,PROHIBITED:3},t.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=t.Query.wildcard.NONE),e.wildcard&t.Query.wildcard.LEADING&&e.term.charAt(0)!=t.Query.wildcard&&(e.term="*"+e.term),e.wildcard&t.Query.wildcard.TRAILING&&e.term.slice(-1)!=t.Query.wildcard&&(e.term=""+e.term+"*"),"presence"in e||(e.presence=t.Query.presence.OPTIONAL),this.clauses.push(e),this},t.Query.prototype.isNegated=function(){for(var e=0;e<this.clauses.length;e++)if(this.clauses[e].presence!=t.Query.presence.PROHIBITED)return!1;return!0},t.Query.prototype.term=function(e,n){if(Array.isArray(e))return e.forEach(function(i){this.term(i,t.utils.clone(n))},this),this;var r=n||{};return r.term=e.toString(),this.clause(r),this},t.QueryParseError=function(e,n,r){this.name="QueryParseError",this.message=e,this.start=n,this.end=r},t.QueryParseError.prototype=new Error,t.QueryLexer=function(e){this.lexemes=[],this.str=e,this.length=e.length,this.pos=0,this.start=0,this.escapeCharPositions=[]},t.QueryLexer.prototype.run=function(){for(var e=t.QueryLexer.lexText;e;)e=e(this)},t.QueryLexer.prototype.sliceString=function(){for(var e=[],n=this.start,r=this.pos,i=0;i<this.escapeCharPositions.length;i++)r=this.escapeCharPositions[i],e.push(this.str.slice(n,r)),n=r+1;return e.push(this.str.slice(n,this.pos)),this.escapeCharPositions.length=0,e.join("")},t.QueryLexer.prototype.emit=function(e){this.lexemes.push({type:e,str:this.sliceString(),start:this.start,end:this.pos}),this.start=this.pos},t.QueryLexer.prototype.escapeCharacter=function(){this.escapeCharPositions.push(this.pos-1),this.pos+=1},t.QueryLexer.prototype.next=function(){if(this.pos>=this.length)return t.QueryLexer.EOS;var e=this.str.charAt(this.pos);return this.pos+=1,e},t.QueryLexer.prototype.width=function(){return this.pos-this.start},t.QueryLexer.prototype.ignore=function(){this.start==this.pos&&(this.pos+=1),this.start=this.pos},t.QueryLexer.prototype.backup=function(){this.pos-=1},t.QueryLexer.prototype.acceptDigitRun=function(){var e,n;do e=this.next(),n=e.charCodeAt(0);while(n>47&&n<58);e!=t.QueryLexer.EOS&&this.backup()},t.QueryLexer.prototype.more=function(){return this.pos<this.length},t.QueryLexer.EOS="EOS",t.QueryLexer.FIELD="FIELD",t.QueryLexer.TERM="TERM",t.QueryLexer.EDIT_DISTANCE="EDIT_DISTANCE",t.QueryLexer.BOOST="BOOST",t.QueryLexer.PRESENCE="PRESENCE",t.QueryLexer.lexField=function(e){return e.backup(),e.emit(t.QueryLexer.FIELD),e.ignore(),t.QueryLexer.lexText},t.QueryLexer.lexTerm=function(e){if(e.width()>1&&(e.backup(),e.emit(t.QueryLexer.TERM)),e.ignore(),e.more())return t.QueryLexer.lexText},t.QueryLexer.lexEditDistance=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(t.QueryLexer.EDIT_DISTANCE),t.QueryLexer.lexText},t.QueryLexer.lexBoost=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(t.QueryLexer.BOOST),t.QueryLexer.lexText},t.QueryLexer.lexEOS=function(e){e.width()>0&&e.emit(t.QueryLexer.TERM)},t.QueryLexer.termSeparator=t.tokenizer.separator,t.QueryLexer.lexText=function(e){for(;;){var n=e.next();if(n==t.QueryLexer.EOS)return t.QueryLexer.lexEOS;if(n.charCodeAt(0)==92){e.escapeCharacter();continue}if(n==":")return t.QueryLexer.lexField;if(n=="~")return e.backup(),e.width()>0&&e.emit(t.QueryLexer.TERM),t.QueryLexer.lexEditDistance;if(n=="^")return e.backup(),e.width()>0&&e.emit(t.QueryLexer.TERM),t.QueryLexer.lexBoost;if(n=="+"&&e.width()===1||n=="-"&&e.width()===1)return e.emit(t.QueryLexer.PRESENCE),t.QueryLexer.lexText;if(n.match(t.QueryLexer.termSeparator))return t.QueryLexer.lexTerm}},t.QueryParser=function(e,n){this.lexer=new t.QueryLexer(e),this.query=n,this.currentClause={},this.lexemeIdx=0},t.QueryParser.prototype.parse=function(){this.lexer.run(),this.lexemes=this.lexer.lexemes;for(var e=t.QueryParser.parseClause;e;)e=e(this);return this.query},t.QueryParser.prototype.peekLexeme=function(){return this.lexemes[this.lexemeIdx]},t.QueryParser.prototype.consumeLexeme=function(){var e=this.peekLexeme();return this.lexemeIdx+=1,e},t.QueryParser.prototype.nextClause=function(){var e=this.currentClause;this.query.clause(e),this.currentClause={}},t.QueryParser.parseClause=function(e){var n=e.peekLexeme();if(n!=null)switch(n.type){case t.QueryLexer.PRESENCE:return t.QueryParser.parsePresence;case t.QueryLexer.FIELD:return t.QueryParser.parseField;case t.QueryLexer.TERM:return t.QueryParser.parseTerm;default:var r="expected either a field or a term, found "+n.type;throw n.str.length>=1&&(r+=" with value '"+n.str+"'"),new t.QueryParseError(r,n.start,n.end)}},t.QueryParser.parsePresence=function(e){var n=e.consumeLexeme();if(n!=null){switch(n.str){case"-":e.currentClause.presence=t.Query.presence.PROHIBITED;break;case"+":e.currentClause.presence=t.Query.presence.REQUIRED;break;default:var r="unrecognised presence operator'"+n.str+"'";throw new t.QueryParseError(r,n.start,n.end)}var i=e.peekLexeme();if(i==null){var r="expecting term or field, found nothing";throw new t.QueryParseError(r,n.start,n.end)}switch(i.type){case t.QueryLexer.FIELD:return t.QueryParser.parseField;case t.QueryLexer.TERM:return t.QueryParser.parseTerm;default:var r="expecting term or field, found '"+i.type+"'";throw new t.QueryParseError(r,i.start,i.end)}}},t.QueryParser.parseField=function(e){var n=e.consumeLexeme();if(n!=null){if(e.query.allFields.indexOf(n.str)==-1){var r=e.query.allFields.map(function(o){return"'"+o+"'"}).join(", "),i="unrecognised field '"+n.str+"', possible fields: "+r;throw new t.QueryParseError(i,n.start,n.end)}e.currentClause.fields=[n.str];var s=e.peekLexeme();if(s==null){var i="expecting term, found nothing";throw new t.QueryParseError(i,n.start,n.end)}switch(s.type){case t.QueryLexer.TERM:return t.QueryParser.parseTerm;default:var i="expecting term, found '"+s.type+"'";throw new t.QueryParseError(i,s.start,s.end)}}},t.QueryParser.parseTerm=function(e){var n=e.consumeLexeme();if(n!=null){e.currentClause.term=n.str.toLowerCase(),n.str.indexOf("*")!=-1&&(e.currentClause.usePipeline=!1);var r=e.peekLexeme();if(r==null){e.nextClause();return}switch(r.type){case t.QueryLexer.TERM:return e.nextClause(),t.QueryParser.parseTerm;case t.QueryLexer.FIELD:return e.nextClause(),t.QueryParser.parseField;case t.QueryLexer.EDIT_DISTANCE:return t.QueryParser.parseEditDistance;case t.QueryLexer.BOOST:return t.QueryParser.parseBoost;case t.QueryLexer.PRESENCE:return e.nextClause(),t.QueryParser.parsePresence;default:var i="Unexpected lexeme type '"+r.type+"'";throw new t.QueryParseError(i,r.start,r.end)}}},t.QueryParser.parseEditDistance=function(e){var n=e.consumeLexeme();if(n!=null){var r=parseInt(n.str,10);if(isNaN(r)){var i="edit distance must be numeric";throw new t.QueryParseError(i,n.start,n.end)}e.currentClause.editDistance=r;var s=e.peekLexeme();if(s==null){e.nextClause();return}switch(s.type){case t.QueryLexer.TERM:return e.nextClause(),t.QueryParser.parseTerm;case t.QueryLexer.FIELD:return e.nextClause(),t.QueryParser.parseField;case t.QueryLexer.EDIT_DISTANCE:return t.QueryParser.parseEditDistance;case t.QueryLexer.BOOST:return t.QueryParser.parseBoost;case t.QueryLexer.PRESENCE:return e.nextClause(),t.QueryParser.parsePresence;default:var i="Unexpected lexeme type '"+s.type+"'";throw new t.QueryParseError(i,s.start,s.end)}}},t.QueryParser.parseBoost=function(e){var n=e.consumeLexeme();if(n!=null){var r=parseInt(n.str,10);if(isNaN(r)){var i="boost must be numeric";throw new t.QueryParseError(i,n.start,n.end)}e.currentClause.boost=r;var s=e.peekLexeme();if(s==null){e.nextClause();return}switch(s.type){case t.QueryLexer.TERM:return e.nextClause(),t.QueryParser.parseTerm;case t.QueryLexer.FIELD:return e.nextClause(),t.QueryParser.parseField;case t.QueryLexer.EDIT_DISTANCE:return t.QueryParser.parseEditDistance;case t.QueryLexer.BOOST:return t.QueryParser.parseBoost;case t.QueryLexer.PRESENCE:return e.nextClause(),t.QueryParser.parsePresence;default:var i="Unexpected lexeme type '"+s.type+"'";throw new t.QueryParseError(i,s.start,s.end)}}},function(e,n){typeof define=="function"&&define.amd?define(n):typeof se=="object"?oe.exports=n():e.lunr=n()}(this,function(){return 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ewanharris
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Dec 11, 2023
frederikprijck
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