1 line
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15 KiB
JavaScript
Executable file
1 line
No EOL
15 KiB
JavaScript
Executable file
!function(t){var e=function(t){var n=new e.Index;return n.pipeline.add(e.stopWordFilter,e.stemmer),t&&t.call(n,n),n};e.version="0.4.3","undefined"!=typeof module&&(module.exports=e),e.utils={},e.utils.warn=function(t){return function(e){t.console&&console.warn&&console.warn(e)}}(this),e.utils.zeroFillArray=function(){var t=[0];return function(e){for(;e>t.length;)t=t.concat(t);return t.slice(0,e)}}(),e.EventEmitter=function(){this.events={}},e.EventEmitter.prototype.addListener=function(){var t=Array.prototype.slice.call(arguments),e=t.pop(),n=t;if("function"!=typeof e)throw new TypeError("last argument must be a function");n.forEach(function(t){this.hasHandler(t)||(this.events[t]=[]),this.events[t].push(e)},this)},e.EventEmitter.prototype.removeListener=function(t,e){if(this.hasHandler(t)){var n=this.events[t].indexOf(e);this.events[t].splice(n,1),this.events[t].length||delete this.events[t]}},e.EventEmitter.prototype.emit=function(t){if(this.hasHandler(t)){var e=Array.prototype.slice.call(arguments,1);this.events[t].forEach(function(t){t.apply(void 0,e)})}},e.EventEmitter.prototype.hasHandler=function(t){return t in this.events},e.tokenizer=function(t){if(!arguments.length||null==t||void 0==t)return[];if(Array.isArray(t))return t.map(function(t){return t.toLowerCase()});for(var e=(""+t).replace(/^\s+/,""),n=e.length-1;n>=0;n--)if(/\S/.test(e.charAt(n))){e=e.substring(0,n+1);break}return e.split(/\s+/).map(function(t){return t.replace(/^\W+/,"").replace(/\W+$/,"").toLowerCase()})},e.Pipeline=function(){this._stack=[]},e.Pipeline.registeredFunctions={},e.Pipeline.registerFunction=function(t,n){n in this.registeredFunctions&&e.utils.warn("Overwriting existing registered function: "+n),t.label=n,e.Pipeline.registeredFunctions[t.label]=t},e.Pipeline.warnIfFunctionNotRegistered=function(t){var n=t.label&&t.label in this.registeredFunctions;n||e.utils.warn("Function is not registered with pipeline. This may cause problems when serialising the index.\n",t)},e.Pipeline.load=function(t){var n=new e.Pipeline;return t.forEach(function(t){var i=e.Pipeline.registeredFunctions[t];if(!i)throw Error("Cannot load un-registered function: "+t);n.add(i)}),n},e.Pipeline.prototype.add=function(){var t=Array.prototype.slice.call(arguments);t.forEach(function(t){e.Pipeline.warnIfFunctionNotRegistered(t),this._stack.push(t)},this)},e.Pipeline.prototype.after=function(t,n){e.Pipeline.warnIfFunctionNotRegistered(n);var i=this._stack.indexOf(t)+1;this._stack.splice(i,0,n)},e.Pipeline.prototype.before=function(t,n){e.Pipeline.warnIfFunctionNotRegistered(n);var i=this._stack.indexOf(t);this._stack.splice(i,0,n)},e.Pipeline.prototype.remove=function(t){var e=this._stack.indexOf(t);this._stack.splice(e,1)},e.Pipeline.prototype.run=function(t){for(var e=[],n=t.length,i=this._stack.length,o=0;n>o;o++){for(var r=t[o],s=0;i>s&&(r=this._stack[s](r,o,t),void 0!==r);s++);void 0!==r&&e.push(r)}return e},e.Pipeline.prototype.toJSON=function(){return this._stack.map(function(t){return e.Pipeline.warnIfFunctionNotRegistered(t),t.label})},e.Vector=function(t){this.elements=t},e.Vector.prototype.magnitude=function(){if(this._magnitude)return this._magnitude;for(var t,e=0,n=this.elements,i=n.length,o=0;i>o;o++)t=n[o],e+=t*t;return this._magnitude=Math.sqrt(e)},e.Vector.prototype.dot=function(t){for(var e=this.elements,n=t.elements,i=e.length,o=0,r=0;i>r;r++)o+=e[r]*n[r];return o},e.Vector.prototype.similarity=function(t){return this.dot(t)/(this.magnitude()*t.magnitude())},e.Vector.prototype.toArray=function(){return this.elements},e.SortedSet=function(){this.length=0,this.elements=[]},e.SortedSet.load=function(t){var e=new this;return e.elements=t,e.length=t.length,e},e.SortedSet.prototype.add=function(){Array.prototype.slice.call(arguments).forEach(function(t){~this.indexOf(t)||this.elements.splice(this.locationFor(t),0,t)},this),this.length=this.elements.length},e.SortedSet.prototype.toArray=function(){return this.elements.slice()},e.SortedSet.prototype.map=function(t,e){return this.elements.map(t,e)},e.SortedSet.prototype.forEach=function(t,e){return this.elements.forEach(t,e)},e.SortedSet.prototype.indexOf=function(t,e,n){var e=e||0,n=n||this.elements.length,i=n-e,o=e+Math.floor(i/2),r=this.elements[o];return 1>=i?r===t?o:-1:t>r?this.indexOf(t,o,n):r>t?this.indexOf(t,e,o):r===t?o:void 0},e.SortedSet.prototype.locationFor=function(t,e,n){var e=e||0,n=n||this.elements.length,i=n-e,o=e+Math.floor(i/2),r=this.elements[o];if(1>=i){if(r>t)return o;if(t>r)return o+1}return t>r?this.locationFor(t,o,n):r>t?this.locationFor(t,e,o):void 0},e.SortedSet.prototype.intersect=function(t){for(var n=new e.SortedSet,i=0,o=0,r=this.length,s=t.length,a=this.elements,l=t.elements;!(i>r-1||o>s-1);)a[i]!==l[o]?a[i]<l[o]?i++:a[i]>l[o]&&o++:(n.add(a[i]),i++,o++);return n},e.SortedSet.prototype.clone=function(){var t=new e.SortedSet;return t.elements=this.toArray(),t.length=t.elements.length,t},e.SortedSet.prototype.union=function(t){var e,n,i;return this.length>=t.length?(e=this,n=t):(e=t,n=this),i=e.clone(),i.add.apply(i,n.toArray()),i},e.SortedSet.prototype.toJSON=function(){return this.toArray()},e.Index=function(){this._fields=[],this._ref="id",this.pipeline=new e.Pipeline,this.documentStore=new e.Store,this.tokenStore=new e.TokenStore,this.corpusTokens=new e.SortedSet,this.eventEmitter=new e.EventEmitter,this._idfCache={},this.on("add","remove","update",function(){this._idfCache={}}.bind(this))},e.Index.prototype.on=function(){var t=Array.prototype.slice.call(arguments);return this.eventEmitter.addListener.apply(this.eventEmitter,t)},e.Index.prototype.off=function(t,e){return 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n=i[e.name].length;if(!n)return t;var o=i[e.name].filter(function(t){return t===a}).length;return t+o/n*e.boost},0);this.tokenStore.add(a,{ref:r,tf:l})}n&&this.eventEmitter.emit("add",t,this)},e.Index.prototype.remove=function(t,e){var n=t[this._ref],e=void 0===e?!0:e;if(this.documentStore.has(n)){var i=this.documentStore.get(n);this.documentStore.remove(n),i.forEach(function(t){this.tokenStore.remove(t,n)},this),e&&this.eventEmitter.emit("remove",t,this)}},e.Index.prototype.update=function(t,e){var e=void 0===e?!0:e;this.remove(t,!1),this.add(t,!1),e&&this.eventEmitter.emit("update",t,this)},e.Index.prototype.idf=function(t){if(this._idfCache[t])return this._idfCache[t];var e=this.tokenStore.count(t),n=1;return e>0&&(n=1+Math.log(this.tokenStore.length/e)),this._idfCache[t]=n},e.Index.prototype.search=function(t){var n=this.pipeline.run(e.tokenizer(t)),i=e.utils.zeroFillArray(this.corpusTokens.length),o=[],r=this._fields.reduce(function(t,e){return t+e.boost},0),s=n.some(function(t){return this.tokenStore.has(t)},this);if(!s)return[];n.forEach(function(t,n,s){var a=1/s.length*this._fields.length*r,l=this,h=this.tokenStore.expand(t).reduce(function(n,o){var r=l.corpusTokens.indexOf(o),s=l.idf(o),h=1,u=new e.SortedSet;if(o!==t){var c=Math.max(3,o.length-t.length);h=1/Math.log(c)}return r>-1&&(i[r]=a*s*h),Object.keys(l.tokenStore.get(o)).forEach(function(t){u.add(t)}),n.union(u)},new e.SortedSet);o.push(h)},this);var a=o.reduce(function(t,e){return t.intersect(e)}),l=new e.Vector(i);return a.map(function(t){return{ref:t,score:l.similarity(this.documentVector(t))}},this).sort(function(t,e){return e.score-t.score})},e.Index.prototype.documentVector=function(t){for(var n=this.documentStore.get(t),i=n.length,o=e.utils.zeroFillArray(this.corpusTokens.length),r=0;i>r;r++){var s=n.elements[r],a=this.tokenStore.get(s)[t].tf,l=this.idf(s);o[this.corpusTokens.indexOf(s)]=a*l}return new e.Vector(o)},e.Index.prototype.toJSON=function(){return{version:e.version,fields:this._fields,ref:this._ref,documentStore:this.documentStore.toJSON(),tokenStore:this.tokenStore.toJSON(),corpusTokens:this.corpusTokens.toJSON(),pipeline:this.pipeline.toJSON()}},e.Store=function(){this.store={},this.length=0},e.Store.load=function(t){var n=new this;return n.length=t.length,n.store=Object.keys(t.store).reduce(function(n,i){return n[i]=e.SortedSet.load(t.store[i]),n},{}),n},e.Store.prototype.set=function(t,e){this.store[t]=e,this.length=Object.keys(this.store).length},e.Store.prototype.get=function(t){return this.store[t]},e.Store.prototype.has=function(t){return t in this.store},e.Store.prototype.remove=function(t){this.has(t)&&(delete this.store[t],this.length--)},e.Store.prototype.toJSON=function(){return{store:this.store,length:this.length}},e.stemmer=function(){var t={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"},e={icate:"ic",ative:"",alize:"al",iciti:"ic",ical:"ic",ful:"",ness:""},n="[^aeiou]",i="[aeiouy]",o=n+"[^aeiouy]*",r=i+"[aeiou]*",s="^("+o+")?"+r+o,a="^("+o+")?"+r+o+"("+r+")?$",l="^("+o+")?"+r+o+r+o,h="^("+o+")?"+i;return function(n){var r,u,c,f,p,d,m;if(3>n.length)return n;if(c=n.substr(0,1),"y"==c&&(n=c.toUpperCase()+n.substr(1)),f=/^(.+?)(ss|i)es$/,p=/^(.+?)([^s])s$/,f.test(n)?n=n.replace(f,"$1$2"):p.test(n)&&(n=n.replace(p,"$1$2")),f=/^(.+?)eed$/,p=/^(.+?)(ed|ing)$/,f.test(n)){var v=f.exec(n);f=RegExp(s),f.test(v[1])&&(f=/.$/,n=n.replace(f,""))}else if(p.test(n)){var v=p.exec(n);r=v[1],p=RegExp(h),p.test(r)&&(n=r,p=/(at|bl|iz)$/,d=RegExp("([^aeiouylsz])\\1$"),m=RegExp("^"+o+i+"[^aeiouwxy]$"),p.test(n)?n+="e":d.test(n)?(f=/.$/,n=n.replace(f,"")):m.test(n)&&(n+="e"))}if(f=/^(.+?)y$/,f.test(n)){var v=f.exec(n);r=v[1],f=RegExp(h),f.test(r)&&(n=r+"i")}if(f=/^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/,f.test(n)){var v=f.exec(n);r=v[1],u=v[2],f=RegExp(s),f.test(r)&&(n=r+t[u])}if(f=/^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/,f.test(n)){var v=f.exec(n);r=v[1],u=v[2],f=RegExp(s),f.test(r)&&(n=r+e[u])}if(f=/^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/,p=/^(.+?)(s|t)(ion)$/,f.test(n)){var v=f.exec(n);r=v[1],f=RegExp(l),f.test(r)&&(n=r)}else if(p.test(n)){var v=p.exec(n);r=v[1]+v[2],p=RegExp(l),p.test(r)&&(n=r)}if(f=/^(.+?)e$/,f.test(n)){var v=f.exec(n);r=v[1],f=RegExp(l),p=RegExp(a),d=RegExp("^"+o+i+"[^aeiouwxy]$"),(f.test(r)||p.test(r)&&!d.test(r))&&(n=r)}return f=/ll$/,p=RegExp(l),f.test(n)&&p.test(n)&&(f=/.$/,n=n.replace(f,"")),"y"==c&&(n=c.toLowerCase()+n.substr(1)),n}}(),e.Pipeline.registerFunction(e.stemmer,"stemmer"),e.stopWordFilter=function(t){return-1===e.stopWordFilter.stopWords.indexOf(t)?t:void 0},e.stopWordFilter.stopWords=new e.SortedSet,e.stopWordFilter.stopWords.length=119,e.stopWordFilter.stopWords.elements=["","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"],e.Pipeline.registerFunction(e.stopWordFilter,"stopWordFilter"),e.TokenStore=function(){this.root={docs:{}},this.length=0},e.TokenStore.load=function(t){var e=new this;return e.root=t.root,e.length=t.length,e},e.TokenStore.prototype.add=function(t,e,n){var n=n||this.root,i=t[0],o=t.slice(1);return i in n||(n[i]={docs:{}}),0===o.length?(n[i].docs[e.ref]=e,void(this.length+=1)):this.add(o,e,n[i])},e.TokenStore.prototype.has=function(t){if(!t)return!1;for(var e=this.root,n=0;t.length>n;n++){if(!e[t[n]])return!1;e=e[t[n]]}return!0},e.TokenStore.prototype.getNode=function(t){if(!t)return{};for(var e=this.root,n=0;t.length>n;n++){if(!e[t[n]])return{};e=e[t[n]]}return e},e.TokenStore.prototype.get=function(t,e){return this.getNode(t,e).docs||{}},e.TokenStore.prototype.count=function(t,e){return Object.keys(this.get(t,e)).length},e.TokenStore.prototype.remove=function(t,e){if(t){for(var n=this.root,i=0;t.length>i;i++){if(!(t[i]in n))return;n=n[t[i]]}delete n.docs[e]}},e.TokenStore.prototype.expand=function(t,e){var n=this.getNode(t),i=n.docs||{},e=e||[];return Object.keys(i).length&&e.push(t),Object.keys(n).forEach(function(n){"docs"!==n&&e.concat(this.expand(t+n,e))},this),e},e.TokenStore.prototype.toJSON=function(){return{root:this.root,length:this.length}},t.fn.ghostHunter=function(e){var i=t.extend({},t.fn.ghostHunter.defaults,e);return i.results?(n.init(this,i),n):void 0},t.fn.ghostHunter.defaults={results:!1,rss:"/rss",onKeyUp:!1,result_template:"<a href='{{link}}'><p><h2>{{title}}</h2><h4>{{pubDate}}</h4></p></a>",info_template:"<p>Number of posts found: {{amount}}</p>",displaySearchInfo:!0,zeroResultsInfo:!0};var n={isInit:!1,init:function(t,n){var i=this;this.target=t,this.rss=n.rss,this.results=n.results,this.blogData=[],this.result_template=n.result_template,this.info_template=n.info_template,this.zeroResultsInfo=n.zeroResultsInfo,this.displaySearchInfo=n.displaySearchInfo,this.index=e(function(){this.field("title",{boost:10}),this.field("description"),this.field("link"),this.field("pubDate"),this.ref("id")}),t.focus(function(){i.loadRSS()}),t.closest("form").submit(function(e){e.preventDefault(),i.find(t.val())}),n.onKeyUp&&(i.loadRSS(),t.keyup(function(){i.find(t.val())}))},loadRSS:function(){if(this.isInit)return!1;var e=this.index,n=this.rss,i=this.blogData;t.get(n,function(n){for(var o=t(n).find("item"),r=0;o&&r<o.length;r++){var s=o.eq(r),a={id:r+1,title:s.find("title").text(),description:s.find("description").text(),pubDate:s.find("pubDate").text(),link:s.find("link").text()};e.add(a),i.push(a)}}),this.isInit=!0},find:function(e){var n=this.index.search(e),i=t(this.results);i.empty(),(this.zeroResultsInfo||n.length>0)&&this.displaySearchInfo&&i.append(this.format(this.info_template,{amount:n.length}));for(var o=0;o<n.length;o++){var r=this.blogData[n[o].ref-1];i.append(this.format(this.result_template,r))}},clear:function(){t(this.results).empty(),this.target.val("")},format:function(t,e){return t.replace(/{{([^{}]*)}}/g,function(t,n){var i=e[n];return"string"==typeof i||"number"==typeof i?i:t})}}}(jQuery); |