hugo-theme-relearn/static/js/lunr.min.js

/**
 * lunr - http://lunrjs.com - A bit like Solr, but much smaller and not as bright - 2.3.5
 * Copyright (C) 2018 Oliver Nightingale
 * @license MIT
 */
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Current version of lunr '"+z.version+"' does not match serialized index '"+e.version+"'");for(var u=0;u<i.length;u++){var l=(h=i[u])[0],c=h[1];r[l]=new z.Vector(c)}for(u=0;u<s.length;u++){var h,d=(h=s[u])[0],f=h[1];o.insert(d),n[d]=f}return o.finish(),t.fields=e.fields,t.fieldVectors=r,t.invertedIndex=n,t.tokenSet=o.root,t.pipeline=a,new z.Index(t)},z.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=z.tokenizer,this.pipeline=new z.Pipeline,this.searchPipeline=new z.Pipeline,this.documentCount=0,this._b=.75,this._k1=1.2,this.termIndex=0,this.metadataWhitelist=[]},z.Builder.prototype.ref=function(e){this._ref=e},z.Builder.prototype.field=function(e,t){if(/\//.test(e))throw new RangeError("Field '"+e+"' contains illegal character '/'");this._fields[e]=t||{}},z.Builder.prototype.b=function(e){this._b=e<0?0:1<e?1:e},z.Builder.prototype.k1=function(e){this._k1=e},z.Builder.prototype.add=function(e,t){var r=e[this._ref],i=Object.keys(this._fields);this._documents[r]=t||{},this.documentCount+=1;for(var n=0;n<i.length;n++){var s=i[n],o=this._fields[s].extractor,a=o?o(e):e[s],u=this.tokenizer(a,{fields:[s]}),l=this.pipeline.run(u),c=new z.FieldRef(r,s),h=Object.create(null);this.fieldTermFrequencies[c]=h,this.fieldLengths[c]=0,this.fieldLengths[c]+=l.length;for(var d=0;d<l.length;d++){var f=l[d];if(null==h[f]&&(h[f]=0),h[f]+=1,null==this.invertedIndex[f]){var p=Object.create(null);p._index=this.termIndex,this.termIndex+=1;for(var y=0;y<i.length;y++)p[i[y]]=Object.create(null);this.invertedIndex[f]=p}null==this.invertedIndex[f][s][r]&&(this.invertedIndex[f][s][r]=Object.create(null));for(var m=0;m<this.metadataWhitelist.length;m++){var g=this.metadataWhitelist[m],x=f.metadata[g];null==this.invertedIndex[f][s][r][g]&&(this.invertedIndex[f][s][r][g]=[]),this.invertedIndex[f][s][r][g].push(x)}}}},z.Builder.prototype.calculateAverageFieldLengths=function(){for(var e=Object.keys(this.fieldLengths),t=e.length,r={},i={},n=0;n<t;n++){var s=z.FieldRef.fromString(e[n]),o=s.fieldName;i[o]||(i[o]=0),i[o]+=1,r[o]||(r[o]=0),r[o]+=this.fieldLengths[s]}var a=Object.keys(this._fields);for(n=0;n<a.length;n++){var u=a[n];r[u]=r[u]/i[u]}this.averageFieldLength=r},z.Builder.prototype.createFieldVectors=function(){for(var e={},t=Object.keys(this.fieldTermFrequencies),r=t.length,i=Object.create(null),n=0;n<r;n++){for(var s=z.FieldRef.fromString(t[n]),o=s.fieldName,a=this.fieldLengths[s],u=new z.Vector,l=this.fieldTermFrequencies[s],c=Object.keys(l),h=c.length,d=this._fields[o].boost||1,f=this._documents[s.docRef].boost||1,p=0;p<h;p++){var y,m,g,x=c[p],v=l[x],w=this.invertedIndex[x]._index;void 0===i[x]?(y=z.idf(this.invertedIndex[x],this.documentCount),i[x]=y):y=i[x],m=y*((this._k1+1)*v)/(this._k1*(1-this._b+this._b*(a/this.averageFieldLength[o]))+v),m*=d,m*=f,g=Math.round(1e3*m)/1e3,u.insert(w,g)}e[s]=u}this.fieldVectors=e},z.Builder.prototype.createTokenSet=function(){this.tokenSet=z.TokenSet.fromArray(Object.keys(this.invertedIndex).sort())},z.Builder.prototype.build=function(){return this.calculateAverageFieldLengths(),this.createFieldVectors(),this.createTokenSet(),new z.Index({invertedIndex:this.invertedIndex,fieldVectors:this.fieldVectors,tokenSet:this.tokenSet,fields:Object.keys(this._fields),pipeline:this.searchPipeline})},z.Builder.prototype.use=function(e){var t=Array.prototype.slice.call(arguments,1);t.unshift(this),e.apply(this,t)},z.MatchData=function(e,t,r){for(var i=Object.create(null),n=Object.keys(r||{}),s=0;s<n.length;s++){var o=n[s];i[o]=r[o].slice()}this.metadata=Object.create(null),void 0!==e&&(this.metadata[e]=Object.create(null),this.metadata[e][t]=i)},z.MatchData.prototype.combine=function(e){for(var t=Object.keys(e.metadata),r=0;r<t.length;r++){var i=t[r],n=Object.keys(e.metadata[i]);null==this.metadata[i]&&(this.metadata[i]=Object.create(null));for(var s=0;s<n.length;s++){var o=n[s],a=Object.keys(e.metadata[i][o]);null==this.metadata[i][o]&&(this.metadata[i][o]=Object.create(null));for(var u=0;u<a.length;u++){var l=a[u];null==this.metadata[i][o][l]?this.metadata[i][o][l]=e.metadata[i][o][l]:this.metadata[i][o][l]=this.metadata[i][o][l].concat(e.metadata[i][o][l])}}}},z.MatchData.prototype.add=function(e,t,r){if(!(e in this.metadata))return this.metadata[e]=Object.create(null),void(this.metadata[e][t]=r);if(t in this.metadata[e])for(var i=Object.keys(r),n=0;n<i.length;n++){var s=i[n];s in this.metadata[e][t]?this.metadata[e][t][s]=this.metadata[e][t][s].concat(r[s]):this.metadata[e][t][s]=r[s]}else this.metadata[e][t]=r},z.Query=function(e){this.clauses=[],this.allFields=e},z.Query.wildcard=new String("*"),z.Query.wildcard.NONE=0,z.Query.wildcard.LEADING=1,z.Query.wildcard.TRAILING=2,z.Query.presence={OPTIONAL:1,REQUIRED:2,PROHIBITED:3},z.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=z.Query.wildcard.NONE),e.wildcard&z.Query.wildcard.LEADING&&e.term.charAt(0)!=z.Query.wildcard&&(e.term="*"+e.term),e.wildcard&z.Query.wildcard.TRAILING&&e.term.slice(-1)!=z.Query.wildcard&&(e.term=e.term+"*"),"presence"in e||(e.presence=z.Query.presence.OPTIONAL),this.clauses.push(e),this},z.Query.prototype.isNegated=function(){for(var e=0;e<this.clauses.length;e++)if(this.clauses[e].presence!=z.Query.presence.PROHIBITED)return!1;return!0},z.Query.prototype.term=function(e,t){if(Array.isArray(e))return e.forEach(function(e){this.term(e,z.utils.clone(t))},this),this;var r=t||{};return r.term=e.toString(),this.clause(r),this},z.QueryParseError=function(e,t,r){this.name="QueryParseError",this.message=e,this.start=t,this.end=r},z.QueryParseError.prototype=new Error,z.QueryLexer=function(e){this.lexemes=[],this.str=e,this.length=e.length,this.pos=0,this.start=0,this.escapeCharPositions=[]},z.QueryLexer.prototype.run=function(){for(var e=z.QueryLexer.lexText;e;)e=e(this)},z.QueryLexer.prototype.sliceString=function(){for(var e=[],t=this.start,r=this.pos,i=0;i<this.escapeCharPositions.length;i++)r=this.escapeCharPositions[i],e.push(this.str.slice(t,r)),t=r+1;return e.push(this.str.slice(t,this.pos)),this.escapeCharPositions.length=0,e.join("")},z.QueryLexer.prototype.emit=function(e){this.lexemes.push({type:e,str:this.sliceString(),start:this.start,end:this.pos}),this.start=this.pos},z.QueryLexer.prototype.escapeCharacter=function(){this.escapeCharPositions.push(this.pos-1),this.pos+=1},z.QueryLexer.prototype.next=function(){if(this.pos>=this.length)return z.QueryLexer.EOS;var e=this.str.charAt(this.pos);return this.pos+=1,e},z.QueryLexer.prototype.width=function(){return this.pos-this.start},z.QueryLexer.prototype.ignore=function(){this.start==this.pos&&(this.pos+=1),this.start=this.pos},z.QueryLexer.prototype.backup=function(){this.pos-=1},z.QueryLexer.prototype.acceptDigitRun=function(){for(var e,t;47<(t=(e=this.next()).charCodeAt(0))&&t<58;);e!=z.QueryLexer.EOS&&this.backup()},z.QueryLexer.prototype.more=function(){return this.pos<this.length},z.QueryLexer.EOS="EOS",z.QueryLexer.FIELD="FIELD",z.QueryLexer.TERM="TERM",z.QueryLexer.EDIT_DISTANCE="EDIT_DISTANCE",z.QueryLexer.BOOST="BOOST",z.QueryLexer.PRESENCE="PRESENCE",z.QueryLexer.lexField=function(e){return e.backup(),e.emit(z.QueryLexer.FIELD),e.ignore(),z.QueryLexer.lexText},z.QueryLexer.lexTerm=function(e){if(1<e.width()&&(e.backup(),e.emit(z.QueryLexer.TERM)),e.ignore(),e.more())return z.QueryLexer.lexText},z.QueryLexer.lexEditDistance=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(z.QueryLexer.EDIT_DISTANCE),z.QueryLexer.lexText},z.QueryLexer.lexBoost=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(z.QueryLexer.BOOST),z.QueryLexer.lexText},z.QueryLexer.lexEOS=function(e){0<e.width()&&e.emit(z.QueryLexer.TERM)},z.QueryLexer.termSeparator=z.tokenizer.separator,z.QueryLexer.lexText=function(e){for(;;){var t=e.next();if(t==z.QueryLexer.EOS)return z.QueryLexer.lexEOS;if(92!=t.charCodeAt(0)){if(":"==t)return z.QueryLexer.lexField;if("~"==t)return e.backup(),0<e.width()&&e.emit(z.QueryLexer.TERM),z.QueryLexer.lexEditDistance;if("^"==t)return e.backup(),0<e.width()&&e.emit(z.QueryLexer.TERM),z.QueryLexer.lexBoost;if("+"==t&&1===e.width())return e.emit(z.QueryLexer.PRESENCE),z.QueryLexer.lexText;if("-"==t&&1===e.width())return e.emit(z.QueryLexer.PRESENCE),z.QueryLexer.lexText;if(t.match(z.QueryLexer.termSeparator))return z.QueryLexer.lexTerm}else e.escapeCharacter()}},z.QueryParser=function(e,t){this.lexer=new z.QueryLexer(e),this.query=t,this.currentClause={},this.lexemeIdx=0},z.QueryParser.prototype.parse=function(){this.lexer.run(),this.lexemes=this.lexer.lexemes;for(var e=z.QueryParser.parseClause;e;)e=e(this);return this.query},z.QueryParser.prototype.peekLexeme=function(){return this.lexemes[this.lexemeIdx]},z.QueryParser.prototype.consumeLexeme=function(){var e=this.peekLexeme();return this.lexemeIdx+=1,e},z.QueryParser.prototype.nextClause=function(){var e=this.currentClause;this.query.clause(e),this.currentClause={}},z.QueryParser.parseClause=function(e){var t=e.peekLexeme();if(null!=t)switch(t.type){case z.QueryLexer.PRESENCE:return z.QueryParser.parsePresence;case z.QueryLexer.FIELD:return z.QueryParser.parseField;case z.QueryLexer.TERM:return z.QueryParser.parseTerm;default:var r="expected either a field or a term, found "+t.type;throw 1<=t.str.length&&(r+=" with value '"+t.str+"'"),new z.QueryParseError(r,t.start,t.end)}},z.QueryParser.parsePresence=function(e){var t=e.consumeLexeme();if(null!=t){switch(t.str){case"-":e.currentClause.presence=z.Query.presence.PROHIBITED;break;case"+":e.currentClause.presence=z.Query.presence.REQUIRED;break;default:var r="unrecognised presence operator'"+t.str+"'";throw new z.QueryParseError(r,t.start,t.end)}var i=e.peekLexeme();if(null==i){r="expecting term or field, found nothing";throw new z.QueryParseError(r,t.start,t.end)}switch(i.type){case z.QueryLexer.FIELD:return z.QueryParser.parseField;case z.QueryLexer.TERM:return z.QueryParser.parseTerm;default:r="expecting term or field, found '"+i.type+"'";throw new z.QueryParseError(r,i.start,i.end)}}},z.QueryParser.parseField=function(e){var t=e.consumeLexeme();if(null!=t){if(-1==e.query.allFields.indexOf(t.str)){var r=e.query.allFields.map(function(e){return"'"+e+"'"}).join(", "),i="unrecognised field '"+t.str+"', possible fields: "+r;throw new z.QueryParseError(i,t.start,t.end)}e.currentClause.fields=[t.str];var n=e.peekLexeme();if(null==n){i="expecting term, found nothing";throw new z.QueryParseError(i,t.start,t.end)}switch(n.type){case z.QueryLexer.TERM:return z.QueryParser.parseTerm;default:i="expecting term, found '"+n.type+"'";throw new z.QueryParseError(i,n.start,n.end)}}},z.QueryParser.parseTerm=function(e){var t=e.consumeLexeme();if(null!=t){e.currentClause.term=t.str.toLowerCase(),-1!=t.str.indexOf("*")&&(e.currentClause.usePipeline=!1);var r=e.peekLexeme();if(null!=r)switch(r.type){case z.QueryLexer.TERM:return e.nextClause(),z.QueryParser.parseTerm;case z.QueryLexer.FIELD:return e.nextClause(),z.QueryParser.parseField;case z.QueryLexer.EDIT_DISTANCE:return z.QueryParser.parseEditDistance;case z.QueryLexer.BOOST:return z.QueryParser.parseBoost;case z.QueryLexer.PRESENCE:return e.nextClause(),z.QueryParser.parsePresence;default:var i="Unexpected lexeme type '"+r.type+"'";throw new z.QueryParseError(i,r.start,r.end)}else e.nextClause()}},z.QueryParser.parseEditDistance=function(e){var t=e.consumeLexeme();if(null!=t){var r=parseInt(t.str,10);if(isNaN(r)){var i="edit distance must be numeric";throw new z.QueryParseError(i,t.start,t.end)}e.currentClause.editDistance=r;var n=e.peekLexeme();if(null!=n)switch(n.type){case z.QueryLexer.TERM:return e.nextClause(),z.QueryParser.parseTerm;case z.QueryLexer.FIELD:return e.nextClause(),z.QueryParser.parseField;case z.QueryLexer.EDIT_DISTANCE:return z.QueryParser.parseEditDistance;case z.QueryLexer.BOOST:return z.QueryParser.parseBoost;case z.QueryLexer.PRESENCE:return e.nextClause(),z.QueryParser.parsePresence;default:i="Unexpected lexeme type '"+n.type+"'";throw new z.QueryParseError(i,n.start,n.end)}else e.nextClause()}},z.QueryParser.parseBoost=function(e){var t=e.consumeLexeme();if(null!=t){var r=parseInt(t.str,10);if(isNaN(r)){var i="boost must be numeric";throw new z.QueryParseError(i,t.start,t.end)}e.currentClause.boost=r;var n=e.peekLexeme();if(null!=n)switch(n.type){case z.QueryLexer.TERM:return e.nextClause(),z.QueryParser.parseTerm;case z.QueryLexer.FIELD:return e.nextClause(),z.QueryParser.parseField;case z.QueryLexer.EDIT_DISTANCE:return z.QueryParser.parseEditDistance;case z.QueryLexer.BOOST:return z.QueryParser.parseBoost;case z.QueryLexer.PRESENCE:return e.nextClause(),z.QueryParser.parsePresence;default:i="Unexpected lexeme type '"+n.type+"'";throw new z.QueryParseError(i,n.start,n.end)}else e.nextClause()}},n=this,s=function(){return z},"function"==typeof define&&define.amd?define(s):"object"==typeof exports?module.exports=s():n.lunr=s()}();