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7 lines
3.7 KiB
JavaScript
7 lines
3.7 KiB
JavaScript
const removeMarkdown=(n,t={listUnicodeChar:!1,stripListLeaders:!0,gfm:!0,useImgAltText:!1,preserveLinks:!1})=>{let e=n||'';e=e.replace(/^(-\s*?|\*\s*?|_\s*?){3,}\s*$/gm,'');try{t.stripListLeaders&&(t.listUnicodeChar?e=e.replace(/^([\s\t]*)([*\-+]|\d+\.)\s+/gm,t.listUnicodeChar+" $1"):e=e.replace(/^([\s\t]*)([*\-+]|\d+\.)\s+/gm,"$1")),t.gfm&&(e=e.replace(/\n={2,}/g,"\n").replace(/~{3}.*\n/g,'').replace(/~~/g,'').replace(/`{3}.*\n/g,'')),t.preserveLinks&&(e=e.replace(/\[(.*?)\][[(](.*?)[\])]/g,"$1 ($2)")),e=e.replace(/<[^>]*>/g,'').replace(/^[=-]{2,}\s*$/g,'').replace(/\[\^.+?\](: .*?$)?/g,'').replace(/\s{0,2}\[.*?\]: .*?$/g,'').replace(/!\[(.*?)\][[(].*?[\])]/g,t.useImgAltText?"$1":'').replace(/\[(.*?)\][[(].*?[\])]/g,"$1").replace(/^\s{0,3}>\s?/g,'').replace(/(^|\n)\s{0,3}>\s?/g,"\n\n").replace(/^\s{1,2}\[(.*?)\]: (\S+)( ".*?")?\s*$/g,'').replace(/([*_]{1,3})(\S.*?\S{0,1})\1/g,"$2").replace(/([*_]{1,3})(\S.*?\S{0,1})\1/g,"$2").replace(/(`{3,})(.*?)\1/gm,"$2").replace(/`(.+?)`/g,"$1").replace(/\n{2,}/g,"\n\n")}catch(e){return console.error(e),n}return e};(async function(){const r=e=>e.toLowerCase().split(/([^a-z]|[^\x00-\x7F])+/),d=new FlexSearch.Document({cache:!0,charset:"latin:extra",optimize:!0,index:[{field:"content",tokenize:"reverse",encode:r},{field:"title",tokenize:"forward",encode:r}]}),{content:s}=await fetchData;for(const[t,e]of Object.entries(s))d.add({id:t,title:e.title,content:removeMarkdown(e.content)});const l=(c,l)=>{const e=20,d=l.split(/\s+/).filter(e=>e!==''),t=c.split(/\s+/).filter(e=>e!==''),i=e=>d.some(t=>e.toLowerCase().startsWith(t.toLowerCase())),s=t.map(i);let o=0,a=0;for(let t=0;t<Math.max(s.length-e,0);t++){const i=s.slice(t,t+e),n=i.reduce((e,t)=>e+t,0);n>=o&&(o=n,a=t)}const n=Math.max(a-e,0),r=Math.min(n+2*e,t.length),u=t.slice(n,r).map(e=>i(e)?`<span class="search-highlight">${e}</span>`:e).join(" ").replaceAll('</span> <span class="search-highlight">'," ");return`${n===0?'':"..."}${u}${r===t.length?'':"..."}`},m=({url:t,title:n,content:s,term:e})=>{const o=removeMarkdown(s),i=l(n,e),a=l(o,e);return`<button class="result-card" id="${t}">
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<h3>${i}</h3>
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<p>${a}</p>
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</button>`},c=(e,t)=>{window.navigate(new URL(`${BASE_URL.slice(0,-1)}${e}#:~:text=${encodeURIComponent(t)}/`),".singlePage"),o()},h=e=>({id:e,url:e,title:s[e].title,content:s[e].content}),n=document.getElementById("search-bar"),i=document.getElementById("results-container");let t;n.addEventListener("keyup",e=>{if(e.key==="Enter"){const e=document.getElementsByClassName("result-card")[0];c(e.id,t)}}),n.addEventListener("input",s=>{t=s.target.value;const o=d.search(t,[{field:"content",limit:10},{field:"title",limit:5}]),e=t=>{const e=o.filter(e=>e.field===t);return e.length===0?[]:[...e[0].result]},a=new Set([...e("title"),...e("content")]),n=[...a].map(h);if(n.length===0)i.innerHTML=`<button class="result-card">
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<h3>No results.</h3>
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<p>Try another search term?</p>
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</button>`;else{i.innerHTML=n.map(e=>m({...e,term:t})).join("\n");const e=[...document.getElementsByClassName("result-card")];e.forEach(e=>{e.onclick=()=>c(e.id,t)})}});const e=document.getElementById("search-container");function a(){e.style.display==="none"||e.style.display===''?(n.value='',i.innerHTML='',e.style.display="block",n.focus()):e.style.display="none"}function o(){e.style.display="none"}document.addEventListener("keydown",e=>{e.key==="k"&&(e.ctrlKey||e.metaKey)&&(e.preventDefault(),a()),e.key==="Escape"&&(e.preventDefault(),o())});const u=document.getElementById("search-icon");u.addEventListener("click",e=>{a()}),u.addEventListener("keydown",e=>{a()}),e.addEventListener("click",e=>{o()}),document.getElementById("search-space").addEventListener("click",e=>{e.stopPropagation()})})() |