Blog/public/pagefind/pagefind.js

const pagefind_version="1.2.0";let wasm_bindgen;(function(){const __exports={};let script_src;if(typeof document!=='undefined'&&document.currentScript!==null){script_src=new URL("UNHANDLED",location.href).toString()}let wasm=undefined;let cachedUint8Memory0=null;function getUint8Memory0(){if(cachedUint8Memory0===null||cachedUint8Memory0.byteLength===0){cachedUint8Memory0=new Uint8Array(wasm.memory.buffer)}return cachedUint8Memory0}let WASM_VECTOR_LEN=0;function passArray8ToWasm0(arg,malloc){const ptr=malloc(arg.length*1,1)>>>0;getUint8Memory0().set(arg,ptr/1);WASM_VECTOR_LEN=arg.length;return ptr}__exports.init_pagefind=function(metadata_bytes){const ptr0=passArray8ToWasm0(metadata_bytes,wasm.__wbindgen_malloc);const len0=WASM_VECTOR_LEN;const ret=wasm.init_pagefind(ptr0,len0);return ret>>>0};const cachedTextEncoder=(typeof TextEncoder!=='undefined'?new TextEncoder('utf-8'):{encode:()=>{throw Error('TextEncoder not available')}});const encodeString=(typeof cachedTextEncoder.encodeInto==='function'?function(arg,view){return cachedTextEncoder.encodeInto(arg,view)}:function(arg,view){const buf=cachedTextEncoder.encode(arg);view.set(buf);return{read:arg.length,written:buf.length}});function passStringToWasm0(arg,malloc,realloc){if(realloc===undefined){const buf=cachedTextEncoder.encode(arg);const ptr=malloc(buf.length,1)>>>0;getUint8Memory0().subarray(ptr,ptr+buf.length).set(buf);WASM_VECTOR_LEN=buf.length;return ptr}let len=arg.length;let ptr=malloc(len,1)>>>0;const mem=getUint8Memory0();let offset=0;for(;offset<len;offset++){const code=arg.charCodeAt(offset);if(code>0x7F)break;mem[ptr+offset]=code}if(offset!==len){if(offset!==0){arg=arg.slice(offset)}ptr=realloc(ptr,len,len=offset+arg.length*3,1)>>>0;const view=getUint8Memory0().subarray(ptr+offset,ptr+len);const ret=encodeString(arg,view);offset+=ret.written;ptr=realloc(ptr,len,offset,1)>>>0}WASM_VECTOR_LEN=offset;return ptr}__exports.set_ranking_weights=function(ptr,weights){const ptr0=passStringToWasm0(weights,wasm.__wbindgen_malloc,wasm.__wbindgen_realloc);const len0=WASM_VECTOR_LEN;const ret=wasm.set_ranking_weights(ptr,ptr0,len0);return ret>>>0};__exports.load_index_chunk=function(ptr,chunk_bytes){const ptr0=passArray8ToWasm0(chunk_bytes,wasm.__wbindgen_malloc);const len0=WASM_VECTOR_LEN;const ret=wasm.load_index_chunk(ptr,ptr0,len0);return ret>>>0};__exports.load_filter_chunk=function(ptr,chunk_bytes){const ptr0=passArray8ToWasm0(chunk_bytes,wasm.__wbindgen_malloc);const len0=WASM_VECTOR_LEN;const ret=wasm.load_filter_chunk(ptr,ptr0,len0);return ret>>>0};__exports.add_synthetic_filter=function(ptr,filter){const ptr0=passStringToWasm0(filter,wasm.__wbindgen_malloc,wasm.__wbindgen_realloc);const len0=WASM_VECTOR_LEN;const ret=wasm.add_synthetic_filter(ptr,ptr0,len0);return ret>>>0};let cachedInt32Memory0=null;function getInt32Memory0(){if(cachedInt32Memory0===null||cachedInt32Memory0.byteLength===0){cachedInt32Memory0=new Int32Array(wasm.memory.buffer)}return cachedInt32Memory0}const cachedTextDecoder=(typeof TextDecoder!=='undefined'?new TextDecoder('utf-8',{ignoreBOM:true,fatal:true}):{decode:()=>{throw Error('TextDecoder not available')}});if(typeof TextDecoder!=='undefined'){cachedTextDecoder.decode()};function getStringFromWasm0(ptr,len){ptr=ptr>>>0;return cachedTextDecoder.decode(getUint8Memory0().subarray(ptr,ptr+len))}__exports.request_indexes=function(ptr,query){let deferred2_0;let deferred2_1;try{const retptr=wasm.__wbindgen_add_to_stack_pointer(-16);const ptr0=passStringToWasm0(query,wasm.__wbindgen_malloc,wasm.__wbindgen_realloc);const len0=WASM_VECTOR_LEN;wasm.request_indexes(retptr,ptr,ptr0,len0);var r0=getInt32Memory0()[retptr/4+0];var r1=getInt32Memory0()[retptr/4+1];deferred2_0=r0;deferred2_1=r1;return getStringFromWasm0(r0,r1)}finally{wasm.__wbindgen_add_to_stack_pointer(16);wasm.__wbindgen_free(deferred2_0,deferred2_1,1)}};__exports.request_filter_indexes=function(ptr,filters){let deferred2_0;let deferred2_1;try{const retptr=wasm.__wbindgen_add_to_stack_pointer(-16);const ptr0=passStringToWasm0(filters,wasm.__wbindgen_malloc,wasm.__wbindgen_realloc
${e?.toString()}`);throw new Error("Failed to load Pagefind metadata")}}findIndex(language){if(this.languages){let index=this.languages[language];if(index)return index;index=this.languages[language.split("-")[0]];if(index)return index;let topLang=Object.values(this.languages).sort((a,b)=>b.page_count-a.page_count);if(topLang[0])return topLang[0]}throw new Error("Pagefind Error: No language indexes found.")}async loadMeta(index){try{let compressed_resp=await fetch(`${this.basePath}pagefind.${index}.pf_meta`);let compressed_meta=await compressed_resp.arrayBuffer();this.searchMeta=this.decompress(new Uint8Array(compressed_meta),"Pagefind metadata")}catch(e){console.error(`Failed to load the meta index:
${e?.toString()}`)}}async loadWasm(language){try{const wasm_url=`${this.basePath}wasm.${language}.pagefind`;let compressed_resp=await fetch(wasm_url);let compressed_wasm=await compressed_resp.arrayBuffer();const final_wasm=this.decompress(new Uint8Array(compressed_wasm),"Pagefind WebAssembly");if(!final_wasm){throw new Error("No WASM after decompression")}this.wasm=await this.backend(final_wasm)}catch(e){console.error(`Failed to load the Pagefind WASM:
${e?.toString()}`);throw new Error(`Failed to load the Pagefind WASM:
${e?.toString()}`)}}async _loadGenericChunk(url,method){try{let compressed_resp=await fetch(url);let compressed_chunk=await compressed_resp.arrayBuffer();let chunk=this.decompress(new Uint8Array(compressed_chunk),url);let ptr=await this.getPtr();this.raw_ptr=this.backend[method](ptr,chunk)}catch(e){console.error(`Failed to load the index chunk ${url}:
${e?.toString()}`)}}async loadChunk(hash){if(!this.loaded_chunks[hash]){const url=`${this.basePath}index/${hash}.pf_index`;this.loaded_chunks[hash]=this._loadGenericChunk(url,"load_index_chunk")}return await this.loaded_chunks[hash]}async loadFilterChunk(hash){if(!this.loaded_filters[hash]){const url=`${this.basePath}filter/${hash}.pf_filter`;this.loaded_filters[hash]=this._loadGenericChunk(url,"load_filter_chunk")}return await this.loaded_filters[hash]}async _loadFragment(hash){let compressed_resp=await fetch(`${this.basePath}fragment/${hash}.pf_fragment`);let compressed_fragment=await compressed_resp.arrayBuffer();let fragment=this.decompress(new Uint8Array(compressed_fragment),`Fragment ${hash}`);return JSON.parse(new TextDecoder().decode(fragment))}async loadFragment(hash,weighted_locations=[],search_term){if(!this.loaded_fragments[hash]){this.loaded_fragments[hash]=this._loadFragment(hash)}let fragment=await this.loaded_fragments[hash];fragment.weighted_locations=weighted_locations;fragment.locations=weighted_locations.map((l)=>l.location);if(!fragment.raw_content){fragment.raw_content=fragment.content.replace(/</g,"&lt;").replace(/>/g,"&gt;");fragment.content=fragment.content.replace(/\u200B/g,"")}if(!fragment.raw_url){fragment.raw_url=fragment.url}fragment.url=this.processedUrl(fragment.raw_url,search_term);const excerpt_start=calculate_excerpt_region(weighted_locations,this.excerptLength);fragment.excerpt=build_excerpt(fragment.raw_content,excerpt_start,this.excerptLength,fragment.locations);fragment.sub_results=calculate_sub_results(fragment,this.excerptLength);return fragment}fullUrl(raw){if(/^(https?:)?\/\//.test(raw)){return raw}return`${this.baseUrl}/${raw}`.replace(/\/+/g,"/").replace(/^(https?:\/)/,"$1/")}processedUrl(url,search_term){const normalized=this.fullUrl(url);if(this.highlightParam===null){return normalized}let individual_terms=search_term.split(/\s+/);try{let processed=new URL(normalized);for(const term of individual_terms){processed.searchParams.append(this.highlightParam,term)}return processed.toString()}catch(e){try{let processed=new URL(`https://example.com${normalized}`);for(const term of individual_terms){processed.searchParams.append(this.highlightParam,term)}return processed.toString().replace(/^https:\/\/example\.com/,"")}catch(e2){return normalized}}}async getPtr(){while(this.raw_ptr===null){await asyncSleep(50)}if(!this.raw_ptr){console.error("Pagefind: WASM Error (No pointer)");throw new Error("Pagefind: WASM Error (No pointer)")}return this.raw_ptr}parseFilters(str){let output={};if(!str)return output;for(const block of str.split("__PF_FILTER_DELIM__")){let[filter,values]=block.split(/:(.*)$/);output[filter]={};if(values){for(const valueBlock of values.split("__PF_VALUE_DELIM__")){if(valueBlock){let extract=valueBlock.match(/^(.*):(\d+)$/);if(extract){let[,value,count]=extract;output[filter][value]=parseInt(count)??count}}}}}return output}stringifyFilters(obj={}){return JSON.stringify(obj)}stringifySorts(obj={}){let sorts=Object.entries(obj);for(let[sort,direction]of sorts){if(sorts.length>1){console.warn(`Pagefind was provided multiple sort options in this search, but can only operate on one. Using the ${sort} sort.`)}if(direction!=="asc"&&direction!=="desc"){console.warn(`Pagefind was provided a sort with unknown direction ${direction}. Supported: [asc, desc]`)}return`${sort}:${direction}`}return``}async filters(){let ptr=await this.getPtr();let filters2=this.backend.request_all_filter_indexes(ptr);let filter_chunks=filters2.split(" ").filter((v)=>v).map((chunk)=>this.loadFilterChunk(chunk));await Promise.all([...filter_chunks]);ptr=await this.getPtr();let results=this.backend.filters(ptr);return this.parseFilters(results)}async preload(term,options2={}){await this.search(term,{...options2,preload:true})}async search(term,options2={}){options2={verbose:false,filters:{},sort:{},...options2};const log=(str)=>{if(options2.verbose)console.log(str)};log(`Starting search on ${this.basePath}`);let start=Date.now();let ptr=await this.getPtr();let filter_only=term===null;term=term??"";let
  hash:${hash}
  score:${score}
  locations:${all_locations}`);let weighted_locations=all_locations.length?all_locations.split(",").map((l)=>{let[weight,balanced_score,location]=l.split(">");return{weight:parseInt(weight)/24,balanced_score:parseFloat(balanced_score),location:parseInt(location)}}):[];let locations=weighted_locations.map((l)=>l.location);return{id:hash,score:parseFloat(score)*this.indexWeight,words:locations,data:async()=>await this.loadFragment(hash,weighted_locations,term)}});const searchTime=Date.now()-searchStart;const realTime=Date.now()-start;log(`Found ${results.length} result${results.length == 1 ? "" : "s"} for "${term}" in ${Date.now() - searchStart}ms (${Date.now() - start}ms realtime)`);return{results:resultsInterface,unfilteredResultCount:parseInt(unfilteredResultCount),filters:filterObj,totalFilters:totalFilterObj,timings:{preload:realTime-searchTime,search:searchTime,total:realTime}}}};var Pagefind=class{constructor(options2={}){this.backend=wasm_bindgen;this.primaryLanguage="unknown";this.searchID=0;this.primary=new PagefindInstance({...options2,primary:true});this.instances=[this.primary];this.init(options2?.language)}async options(options2){await this.primary.options(options2)}async init(overrideLanguage){if(document?.querySelector){const langCode=document.querySelector("html")?.getAttribute("lang")||"unknown";this.primaryLanguage=langCode.toLocaleLowerCase()}await this.primary.init(overrideLanguage?overrideLanguage:this.primaryLanguage,{load_wasm:true})}async mergeIndex(indexPath,options2={}){if(this.primary.basePath.startsWith(indexPath)){console.warn(`Skipping mergeIndex ${indexPath} that appears to be the same as the primary index (${this.primary.basePath})`);return}let newInstance=new PagefindInstance({primary:false,basePath:indexPath});this.instances.push(newInstance);while(this.primary.wasm===null){await asyncSleep(50)}await newInstance.init(options2.language||this.primaryLanguage,{load_wasm:false});delete options2["language"];await newInstance.options(options2)}mergeFilters(filters2){const merged={};for(const searchFilter of filters2){for(const[filterKey,values]of Object.entries(searchFilter)){if(!merged[filterKey]){merged[filterKey]=values;continue}else{const filter=merged[filterKey];for(const[valueKey,count]of Object.entries(values)){filter[valueKey]=(filter[valueKey]||0)+count}}}}return merged}async filters(){let filters2=await Promise.all(this.instances.map((i2)=>i2.filters()));return this.mergeFilters(filters2)}async preload(term,options2={}){await Promise.all(this.instances.map((i2)=>i2.preload(term,options2)))}async debouncedSearch(term,options2,debounceTimeoutMs){const thisSearchID=++this.searchID;this.preload(term,options2);await asyncSleep(debounceTimeoutMs);if(thisSearchID!==this.searchID){return null}const searchResult=await this.search(term,options2);if(thisSearchID!==this.searchID){return null}return searchResult}async search(term,options2={}){let search2=await Promise.all(this.instances.map((i2)=>i2.search(term,options2)));const filters2=this.mergeFilters(search2.map((s)=>s.filters));const totalFilters=this.mergeFilters(search2.map((s)=>s.totalFilters));const results=search2.map((s)=>s.results).flat().sort((a,b)=>b.score-a.score);const timings=search2.map((s)=>s.timings);const unfilteredResultCount=search2.reduce((sum,s)=>sum+s.unfilteredResultCount,0);return{results,unfilteredResultCount,filters:filters2,totalFilters,timings}}};var pagefind=void 0;var initial_options=void 0;var init_pagefind=()=>{if(!pagefind){pagefind=new Pagefind(initial_options??{})}};var options=async(new_options)=>{if(pagefind){await pagefind.options(new_options)}else{initial_options=new_options}};var init=async()=>{init_pagefind()};var destroy=async()=>{pagefind=void 0;initial_options=void 0};var mergeIndex=async(indexPath,options2)=>{init_pagefind();return await pagefind.mergeIndex(indexPath,options2)};var search=async(term,options2)=>{init_pagefind();return await pagefind.search(term,options2)};var debouncedSearch=async(term,options2,debounceTimeoutMs=300)=>{init_pagefind();return await pagefind.debouncedSearch(term,opti