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* Copyright(c) 2015 Tiancheng "Timothy" Gu
* MIT Licensed
*/var Ms=/["'&<>]/;Si.exports=Ls;function Ls(e){var t=""+e,r=Ms.exec(t);if(!r)return t;var n,o="",i=0,s=0;for(i=r.index;i0},enumerable:!1,configurable:!0}),t.prototype._trySubscribe=function(r){return this._throwIfClosed(),e.prototype._trySubscribe.call(this,r)},t.prototype._subscribe=function(r){return this._throwIfClosed(),this._checkFinalizedStatuses(r),this._innerSubscribe(r)},t.prototype._innerSubscribe=function(r){var n=this,o=this,i=o.hasError,s=o.isStopped,a=o.observers;return i||s?Tr:(this.currentObservers=null,a.push(r),new $e(function(){n.currentObservers=null,Ue(a,r)}))},t.prototype._checkFinalizedStatuses=function(r){var n=this,o=n.hasError,i=n.thrownError,s=n.isStopped;o?r.error(i):s&&r.complete()},t.prototype.asObservable=function(){var r=new F;return r.source=this,r},t.create=function(r,n){return new Qn(r,n)},t}(F);var Qn=function(e){ne(t,e);function t(r,n){var o=e.call(this)||this;return o.destination=r,o.source=n,o}return t.prototype.next=function(r){var n,o;(o=(n=this.destination)===null||n===void 0?void 0:n.next)===null||o===void 0||o.call(n,r)},t.prototype.error=function(r){var n,o;(o=(n=this.destination)===null||n===void 0?void 0:n.error)===null||o===void 0||o.call(n,r)},t.prototype.complete=function(){var r,n;(n=(r=this.destination)===null||r===void 0?void 0:r.complete)===null||n===void 0||n.call(r)},t.prototype._subscribe=function(r){var n,o;return(o=(n=this.source)===null||n===void 0?void 0:n.subscribe(r))!==null&&o!==void 0?o:Tr},t}(E);var wt={now:function(){return(wt.delegate||Date).now()},delegate:void 0};var Et=function(e){ne(t,e);function t(r,n,o){r===void 0&&(r=1/0),n===void 0&&(n=1/0),o===void 0&&(o=wt);var i=e.call(this)||this;return i._bufferSize=r,i._windowTime=n,i._timestampProvider=o,i._buffer=[],i._infiniteTimeWindow=!0,i._infiniteTimeWindow=n===1/0,i._bufferSize=Math.max(1,r),i._windowTime=Math.max(1,n),i}return t.prototype.next=function(r){var n=this,o=n.isStopped,i=n._buffer,s=n._infiniteTimeWindow,a=n._timestampProvider,c=n._windowTime;o||(i.push(r),!s&&i.push(a.now()+c)),this._trimBuffer(),e.prototype.next.call(this,r)},t.prototype._subscribe=function(r){this._throwIfClosed(),this._trimBuffer();for(var n=this._innerSubscribe(r),o=this,i=o._infiniteTimeWindow,s=o._buffer,a=s.slice(),c=0;c0?e.prototype.requestAsyncId.call(this,r,n,o):(r.actions.push(this),r._scheduled||(r._scheduled=at.requestAnimationFrame(function(){return r.flush(void 0)})))},t.prototype.recycleAsyncId=function(r,n,o){var i;if(o===void 0&&(o=0),o!=null?o>0:this.delay>0)return e.prototype.recycleAsyncId.call(this,r,n,o);var s=r.actions;n!=null&&((i=s[s.length-1])===null||i===void 0?void 0:i.id)!==n&&(at.cancelAnimationFrame(n),r._scheduled=void 0)},t}(zt);var Gn=function(e){ne(t,e);function t(){return e!==null&&e.apply(this,arguments)||this}return t.prototype.flush=function(r){this._active=!0;var n=this._scheduled;this._scheduled=void 0;var o=this.actions,i;r=r||o.shift();do if(i=r.execute(r.state,r.delay))break;while((r=o[0])&&r.id===n&&o.shift());if(this._active=!1,i){for(;(r=o[0])&&r.id===n&&o.shift();)r.unsubscribe();throw i}},t}(Nt);var xe=new Gn(Bn);var R=new F(function(e){return e.complete()});function qt(e){return e&&L(e.schedule)}function Hr(e){return e[e.length-1]}function Ve(e){return L(Hr(e))?e.pop():void 0}function Ee(e){return qt(Hr(e))?e.pop():void 0}function Kt(e,t){return typeof Hr(e)=="number"?e.pop():t}var st=function(e){return e&&typeof e.length=="number"&&typeof e!="function"};function Qt(e){return L(e==null?void 0:e.then)}function Yt(e){return L(e[it])}function Bt(e){return Symbol.asyncIterator&&L(e==null?void 0:e[Symbol.asyncIterator])}function Gt(e){return new TypeError("You provided "+(e!==null&&typeof e=="object"?"an invalid object":"'"+e+"'")+" where a stream was expected. 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r=e[it]();if(L(r.subscribe))return r.subscribe(t);throw new TypeError("Provided object does not correctly implement Symbol.observable")})}function wa(e){return new F(function(t){for(var r=0;r=2,!0))}function ie(e){e===void 0&&(e={});var t=e.connector,r=t===void 0?function(){return new E}:t,n=e.resetOnError,o=n===void 0?!0:n,i=e.resetOnComplete,s=i===void 0?!0:i,a=e.resetOnRefCountZero,c=a===void 0?!0:a;return function(f){var u,p,l,d=0,h=!1,b=!1,U=function(){p==null||p.unsubscribe(),p=void 0},G=function(){U(),u=l=void 0,h=b=!1},W=function(){var _=u;G(),_==null||_.unsubscribe()};return g(function(_,We){d++,!b&&!h&&U();var Fe=l=l!=null?l:r();We.add(function(){d--,d===0&&!b&&!h&&(p=Dr(W,c))}),Fe.subscribe(We),!u&&d>0&&(u=new Ge({next:function(Pe){return Fe.next(Pe)},error:function(Pe){b=!0,U(),p=Dr(G,o,Pe),Fe.error(Pe)},complete:function(){h=!0,U(),p=Dr(G,s),Fe.complete()}}),z(_).subscribe(u))})(f)}}function Dr(e,t){for(var r=[],n=2;ne.next(document)),e}function Q(e,t=document){return 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t(){this.__entries__=[]}return Object.defineProperty(t.prototype,"size",{get:function(){return this.__entries__.length},enumerable:!0,configurable:!0}),t.prototype.get=function(r){var n=e(this.__entries__,r),o=this.__entries__[n];return o&&o[1]},t.prototype.set=function(r,n){var o=e(this.__entries__,r);~o?this.__entries__[o][1]=n:this.__entries__.push([r,n])},t.prototype.delete=function(r){var n=this.__entries__,o=e(n,r);~o&&n.splice(o,1)},t.prototype.has=function(r){return!!~e(this.__entries__,r)},t.prototype.clear=function(){this.__entries__.splice(0)},t.prototype.forEach=function(r,n){n===void 0&&(n=null);for(var o=0,i=this.__entries__;o0},e.prototype.connect_=function(){!qr||this.connected_||(document.addEventListener("transitionend",this.onTransitionEnd_),window.addEventListener("resize",this.refresh),Ka?(this.mutationsObserver_=new 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t=e.parentElement;for(;t&&(e.scrollWidth<=t.scrollWidth&&e.scrollHeight<=t.scrollHeight);)t=(e=t).parentElement;return t?e:void 0}var Lo=new E,as=P(()=>I(new IntersectionObserver(e=>{for(let t of e)Lo.next(t)},{threshold:0}))).pipe(S(e=>A(Se,I(e)).pipe(C(()=>e.disconnect()))),X(1));function fr(e){return as.pipe(w(t=>t.observe(e)),S(t=>Lo.pipe(x(({target:r})=>r===e),C(()=>t.unobserve(e)),m(({isIntersecting:r})=>r))))}function Ao(e,t=16){return pt(e).pipe(m(({y:r})=>{let n=he(e),o=mt(e);return r>=o.height-n.height-t}),B())}var ur={drawer:K("[data-md-toggle=drawer]"),search:K("[data-md-toggle=search]")};function Co(e){return ur[e].checked}function Ke(e,t){ur[e].checked!==t&&ur[e].click()}function dt(e){let t=ur[e];return v(t,"change").pipe(m(()=>t.checked),N(t.checked))}function ss(e,t){switch(e.constructor){case HTMLInputElement:return e.type==="radio"?/^Arrow/.test(t):!0;case HTMLSelectElement:case HTMLTextAreaElement:return!0;default:return e.isContentEditable}}function Ro(){return v(window,"keydown").pipe(x(e=>!(e.metaKey||e.ctrlKey)),m(e=>({mode:Co("search")?"search":"global",type:e.key,claim(){e.preventDefault(),e.stopPropagation()}})),x(({mode:e,type:t})=>{if(e==="global"){let r=Ie();if(typeof r!="undefined")return!ss(r,t)}return!0}),ie())}function Oe(){return new URL(location.href)}function pr(e){location.href=e.href}function ko(){return new E}function Ho(e,t){if(typeof t=="string"||typeof t=="number")e.innerHTML+=t.toString();else if(t instanceof Node)e.appendChild(t);else if(Array.isArray(t))for(let r of t)Ho(e,r)}function M(e,t,...r){let n=document.createElement(e);if(t)for(let o of Object.keys(t))typeof t[o]!="undefined"&&(typeof t[o]!="boolean"?n.setAttribute(o,t[o]):n.setAttribute(o,""));for(let o of r)Ho(n,o);return n}function Po(e,t){let r=t;if(e.length>r){for(;e[r]!==" "&&--r>0;);return`${e.substring(0,r)}...`}return e}function lr(e){if(e>999){let t=+((e-950)%1e3>99);return`${((e+1e-6)/1e3).toFixed(t)}k`}else return e.toString()}function $o(){return location.hash.substring(1)}function Io(e){let t=M("a",{href:e});t.addEventListener("click",r=>r.stopPropagation()),t.click()}function cs(){return v(window,"hashchange").pipe(m($o),N($o()),x(e=>e.length>0),X(1))}function jo(){return cs().pipe(m(e=>pe(`[id="${e}"]`)),x(e=>typeof e!="undefined"))}function Kr(e){let t=matchMedia(e);return rr(r=>t.addListener(()=>r(t.matches))).pipe(N(t.matches))}function Fo(){let e=matchMedia("print");return A(v(window,"beforeprint").pipe(m(()=>!0)),v(window,"afterprint").pipe(m(()=>!1))).pipe(N(e.matches))}function Qr(e,t){return e.pipe(S(r=>r?t():R))}function mr(e,t={credentials:"same-origin"}){return ue(fetch(`${e}`,t)).pipe(ce(()=>R),S(r=>r.status!==200?Ot(()=>new Error(r.statusText)):I(r)))}function je(e,t){return mr(e,t).pipe(S(r=>r.json()),X(1))}function Uo(e,t){let r=new DOMParser;return mr(e,t).pipe(S(n=>n.text()),m(n=>r.parseFromString(n,"text/xml")),X(1))}function Do(e){let t=M("script",{src:e});return 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r.subscribe(({hidden:n})=>{e.hidden=n}),ps(e,t).pipe(w(n=>r.next(n)),C(()=>r.complete()),m(n=>H({ref:e},n)))}var ii=Ye(Br());function Gr(e){return M("div",{class:"md-tooltip",id:e},M("div",{class:"md-tooltip__inner md-typeset"}))}function Bo(e,t){if(t=t?`${t}_annotation_${e}`:void 0,t){let r=t?`#${t}`:void 0;return M("aside",{class:"md-annotation",tabIndex:0},Gr(t),M("a",{href:r,class:"md-annotation__index",tabIndex:-1},M("span",{"data-md-annotation-id":e})))}else return M("aside",{class:"md-annotation",tabIndex:0},Gr(t),M("span",{class:"md-annotation__index",tabIndex:-1},M("span",{"data-md-annotation-id":e})))}function Go(e){return M("button",{class:"md-clipboard md-icon",title:re("clipboard.copy"),"data-clipboard-target":`#${e} > code`})}function Jr(e,t){let r=t&2,n=t&1,o=Object.keys(e.terms).filter(a=>!e.terms[a]).reduce((a,c)=>[...a,M("del",null,c)," "],[]).slice(0,-1),i=new 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t=e[0].score,r=[...e],n=r.findIndex(f=>!f.location.includes("#")),[o]=r.splice(n,1),i=r.findIndex(f=>f.scoreJr(f,1)),...a.length?[M("details",{class:"md-search-result__more"},M("summary",{tabIndex:-1},a.length>0&&a.length===1?re("search.result.more.one"):re("search.result.more.other",a.length)),...a.map(f=>Jr(f,1)))]:[]];return M("li",{class:"md-search-result__item"},c)}function Xo(e){return M("ul",{class:"md-source__facts"},Object.entries(e).map(([t,r])=>M("li",{class:`md-source__fact md-source__fact--${t}`},typeof r=="number"?lr(r):r)))}function Xr(e){let t=`tabbed-control tabbed-control--${e}`;return M("div",{class:t,hidden:!0},M("button",{class:"tabbed-button",tabIndex:-1}))}function Zo(e){return M("div",{class:"md-typeset__scrollwrap"},M("div",{class:"md-typeset__table"},e))}function ls(e){let t=le(),r=new URL(`../${e.version}/`,t.base);return M("li",{class:"md-version__item"},M("a",{href:`${r}`,class:"md-version__link"},e.title))}function ei(e,t){return M("div",{class:"md-version"},M("button",{class:"md-version__current","aria-label":re("select.version.title")},t.title),M("ul",{class:"md-version__list"},e.map(ls)))}function ms(e,t){let r=P(()=>Y([yo(e),pt(t)])).pipe(m(([{x:n,y:o},i])=>{let{width:s,height:a}=he(e);return{x:n-i.x+s/2,y:o-i.y+a/2}}));return nr(e).pipe(S(n=>r.pipe(m(o=>({active:n,offset:o})),oe(+!n||1/0))))}function ti(e,t,{target$:r}){let[n,o]=Array.from(e.children);return P(()=>{let i=new E,s=i.pipe(de(1));return 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