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!function(a,b){"function"==typeof define&&define.amd?define("sifter",b):"object"==typeof exports?module.exports=b():a.Sifter=b()}(this,function(){var a=function(a,b){this.items=a,this.settings=b||{diacritics:!0}};a.prototype.tokenize=function(a){if(!(a=e(String(a||"").toLowerCase()))||!a.length)return[];var b,c,d,g,i=[],j=a.split(/ +/);for(b=0,c=j.length;b<c;b++){if(d=f(j[b]),this.settings.diacritics)for(g in h)h.hasOwnProperty(g)&&(d=d.replace(new RegExp(g,"g"),h[g]));i.push({string:j[b],regex:new RegExp(d,"i")})}return i},a.prototype.iterator=function(a,b){var c;c=g(a)?Array.prototype.forEach||function(a){for(var b=0,c=this.length;b<c;b++)a(this[b],b,this)}:function(a){for(var b in this)this.hasOwnProperty(b)&&a(this[b],b,this)},c.apply(a,[b])},a.prototype.getScoreFunction=function(a,b){var c,e,f,g,h;c=this,a=c.prepareSearch(a,b),f=a.tokens,e=a.options.fields,g=f.length,h=a.options.nesting;var i=function(a,b){var c,d;return a?(a=String(a||""),-1===(d=a.search(b.regex))?0:(c=b.string.length/a.length,0===d&&(c+=.5),c)):0},j=function(){var a=e.length;return a?1===a?function(a,b){return i(d(b,e[0],h),a)}:function(b,c){for(var f=0,g=0;f<a;f++)g+=i(d(c,e[f],h),b);return g/a}:function(){return 0}}();return g?1===g?function(a){return j(f[0],a)}:"and"===a.options.conjunction?function(a){for(var b,c=0,d=0;c<g;c++){if((b=j(f[c],a))<=0)return 0;d+=b}return d/g}:function(a){for(var b=0,c=0;b<g;b++)c+=j(f[b],a);return c/g}:function(){return 0}},a.prototype.getSortFunction=function(a,c){var e,f,g,h,i,j,k,l,m,n,o;if(g=this,a=g.prepareSearch(a,c),o=!a.query&&c.sort_empty||c.sort,m=function(a,b){return"$score"===a?b.score:d(g.items[b.id],a,c.nesting)},i=[],o)for(e=0,f=o.length;e<f;e++)(a.query||"$score"!==o[e].field)&&i.push(o[e]);if(a.query){for(n=!0,e=0,f=i.length;e<f;e++)if("$score"===i[e].field){n=!1;break}n&&i.unshift({field:"$score",direction:"desc"})}else for(e=0,f=i.length;e<f;e++)if("$score"===i[e].field){i.splice(e,1);break}for(l=[],e=0,f=i.length;e<f;e++)l.push("desc"===i[e].direction?-1:1);return j=i.length,j?1===j?(h=i[0].field,k=l[0],function(a,c){return k*b(m(h,a),m(h,c))}):function(a,c){var d,e,f;for(d=0;d<j;d++)if(f=i[d].field,e=l[d]*b(m(f,a),m(f,c)))return e;return 0}:null},a.prototype.prepareSearch=function(a,b){if("object"==typeof a)return a;b=c({},b);var d=b.fields,e=b.sort,f=b.sort_empty;return d&&!g(d)&&(b.fields=[d]),e&&!g(e)&&(b.sort=[e]),f&&!g(f)&&(b.sort_empty=[f]),{options:b,query:String(a||"").toLowerCase(),tokens:this.tokenize(a),total:0,items:[]}},a.prototype.search=function(a,b){var c,d,e,f,g=this;return d=this.prepareSearch(a,b),b=d.options,a=d.query,f=b.score||g.getScoreFunction(d),a.length?g.iterator(g.items,function(a,e){c=f(a),(!1===b.filter||c>0)&&d.items.push({score:c,id:e})}):g.iterator(g.items,function(a,b){d.items.push({score:1,id:b})}),e=g.getSortFunction(d,b),e&&d.items.sort(e),d.total=d.items.length,"number"==typeof b.limit&&(d.items=d.items.slice(0,b.limit)),d};var b=function(a,b){return"number"==typeof a&&"number"==typeof b?a>b?1:a<b?-1:0:(a=i(String(a||"")),b=i(String(b||"")),a>b?1:b>a?-1:0)},c=function(a,b){var c,d,e,f;for(c=1,d=arguments.length;c<d;c++)if(f=arguments[c])for(e in f)f.hasOwnProperty(e)&&(a[e]=f[e]);return a},d=function(a,b,c){if(a&&b){if(!c)return a[b];for(var d=b.split(".");d.length&&(a=a[d.shift()]););return a}},e=function(a){return(a+"").replace(/^\s+|\s+$|/g,"")},f=function(a){return(a+"").replace(/([.?*+^$[\]\\(){}|-])/g,"\\$1")},g=Array.isArray||"undefined"!=typeof $&&$.isArray||function(a){return"[object Array]"===Object.prototype.toString.call(a)},h={a:"[aḀḁĂăÂâǍǎȺⱥȦȧẠạÄäÀàÁáĀāÃãÅåąĄÃąĄ]",b:"[b␢βΒB฿𐌁ᛒ]",c:"[cĆćĈĉČčĊċC̄c̄ÇçḈḉȻȼƇƈɕᴄＣｃ]",d:"[dĎďḊḋḐḑḌḍḒḓḎḏĐđD̦d̦ƉɖƊɗƋƌᵭᶁᶑȡᴅＤｄð]",e:"[eÉéÈèÊêḘḙĚěĔĕẼẽḚḛẺẻĖėËëĒēȨȩĘęᶒɆɇȄȅẾếỀềỄễỂểḜḝḖḗḔḕȆȇẸẹỆệⱸᴇＥｅɘǝƏƐε]",f:"[fƑƒḞḟ]",g:"[gɢ₲ǤǥĜĝĞğĢģƓɠĠġ]",h:"[hĤĥĦħḨḩẖẖḤḥḢḣɦʰǶƕ]",i:"[iÍíÌ
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return null!==this.settings.maxItems&&this.items.length>=this.settings.maxItems},updateOriginalInput:function(a){var b,c,d,e,f=this;if(a=a||{},1===f.tagType){for(d=[],b=0,c=f.items.length;b<c;b++)e=f.options[f.items[b]][f.settings.labelField]||"",d.push('<option value="'+l(f.items[b])+'" selected="selected">'+l(e)+"</option>");d.length||this.$input.attr("multiple")||d.push('<option value="" selected="selected"></option>'),f.$input.html(d.join(""))}else f.$input.val(f.getValue()),f.$input.attr("value",f.$input.val());f.isSetup&&(a.silent||f.trigger("change",f.$input.val()))},updatePlaceholder:function(){if(this.settings.placeholder){var a=this.$control_input;this.items.length?a.removeAttr("placeholder"):a.attr("placeholder",this.settings.placeholder),a.triggerHandler("update",{force:!0})}},open:function(){var a=this;a.isLocked||a.isOpen||"multi"===a.settings.mode&&a.isFull()||(a.focus(),a.isOpen=!0,a.refreshState(),a.$dropdown.css({visibility:"hidden",display:"block"}),a.positionDropdown(),a.$dropdown.css({visibility:"visible"}),a.trigger("dropdown_open",a.$dropdown))},close:function(){var a=this,b=a.isOpen;"single"===a.settings.mode&&a.items.length&&(a.hideInput(),a.isBlurring||a.$control_input.blur()),a.isOpen=!1,a.$dropdown.hide(),a.setActiveOption(null),a.refreshState(),b&&a.trigger("dropdown_close",a.$dropdown)},positionDropdown:function(){var a=this.$control,b="body"===this.settings.dropdownParent?a.offset():a.position();b.top+=a.outerHeight(!0),this.$dropdown.css({width:a[0].getBoundingClientRect().width,top:b.top,left:b.left})},clear:function(a){var b=this;b.items.length&&(b.$control.children(":not(input)").remove(),b.items=[],b.lastQuery=null,b.setCaret(0),b.setActiveItem(null),b.updatePlaceholder(),b.updateOriginalInput({silent:a}),b.refreshState(),b.showInput(),b.trigger("clear"))},insertAtCaret:function(a){var b=Math.min(this.caretPos,this.items.length),c=a[0],d=this.buffer||this.$control[0];0===b?d.insertBefore(c,d.firstChild):d.insertBefore(c,d.childNodes[b]),this.setCaret(b+1)},deleteSelection:function(b){var c,d,e,f,g,h,i,j,k,l=this;if(e=b&&8===b.keyCode?-1:1,f=r(l.$control_input[0]),l.$activeOption&&!l.settings.hideSelected&&(i=l.getAdjacentOption(l.$activeOption,-1).attr("data-value")),g=[],l.$activeItems.length){for(k=l.$control.children(".active:"+(e>0?"last":"first")),h=l.$control.children(":not(input)").index(k),e>0&&h++,c=0,d=l.$activeItems.length;c<d;c++)g.push(a(l.$activeItems[c]).attr("data-value"));b&&(b.preventDefault(),b.stopPropagation())}else(l.isFocused||"single"===l.settings.mode)&&l.items.length&&(e<0&&0===f.start&&0===f.length?g.push(l.items[l.caretPos-1]):e>0&&f.start===l.$control_input.val().length&&g.push(l.items[l.caretPos]));if(!g.length||"function"==typeof l.settings.onDelete&&!1===l.settings.onDelete.apply(l,[g]))return!1;for(void 0!==h&&l.setCaret(h);g.length;)l.removeItem(g.pop());return l.showInput(),l.positionDropdown(),l.refreshOptions(!0),i&&(j=l.getOption(i),j.length&&l.setActiveOption(j)),!0},advanceSelection:function(a,b){var c,d,e,f,g,h=this;0!==a&&(h.rtl&&(a*=-1),c=a>0?"last":"first",d=r(h.$control_input[0]),h.isFocused&&!h.isInputHidden?(f=h.$control_input.val().length,(a<0?0===d.start&&0===d.length:d.start===f)&&!f&&h.advanceCaret(a,b)):(g=h.$control.children(".active:"+c),g.length&&(e=h.$control.children(":not(input)").index(g),h.setActiveItem(null),h.setCaret(a>0?e+1:e))))},advanceCaret:function(a,b){var c,d,e=this;0!==a&&(c=a>0?"next":"prev",e.isShiftDown?(d=e.$control_input[c](),d.length&&(e.hideInput(),e.setActiveItem(d),b&&b.preventDefault())):e.setCaret(e.caretPos+a))},setCaret:function(b){var c=this;if(b="single"===c.settings.mode?c.items.length:Math.max(0,Math.min(c.items.length,b)),!c.isPending){var d,e,f,g;for(f=c.$control.children(":not(input)"),d=0,e=f.length;d<e;d++)g=a(f[d]).detach(),d<b?c.$control_input.before(g):c.$control.append(g)}c.caretPos=b},lock:function(){this.close(),this.isLocked=!0,this.refreshState()},unlock:function(){this.isLocked=!1,this.refreshState()},disable:function(){var a=this;a.$input.prop("disabled",!0),a.$control_input.prop("di
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