<div id="search-container">
|
<div id="search-space">
|
<input autoComplete="off" id="search-bar" name="search" type="text" aria-label="Search"
|
placeholder="Search for something...">
|
<div id="results-container">
|
</div>
|
</div>
|
</div>
|
<script src="https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.7.2/dist/flexsearch.bundle.js"></script>
|
<script>
|
// code from https://github.com/danestves/markdown-to-text
|
const removeMarkdown = (
|
markdown,
|
options = {
|
listUnicodeChar: false,
|
stripListLeaders: true,
|
gfm: true,
|
useImgAltText: false,
|
preserveLinks: false,
|
}
|
) => {
|
let output = markdown || "";
|
output = output.replace(/^(-\s*?|\*\s*?|_\s*?){3,}\s*$/gm, "");
|
|
try {
|
if (options.stripListLeaders) {
|
if (options.listUnicodeChar)
|
output = output.replace(
|
/^([\s\t]*)([\*\-\+]|\d+\.)\s+/gm,
|
options.listUnicodeChar + " $1"
|
);
|
else output = output.replace(/^([\s\t]*)([\*\-\+]|\d+\.)\s+/gm, "$1");
|
}
|
if (options.gfm) {
|
output = output
|
.replace(/\n={2,}/g, "\n")
|
.replace(/~{3}.*\n/g, "")
|
.replace(/~~/g, "")
|
.replace(/`{3}.*\n/g, "");
|
}
|
if (options.preserveLinks) {
|
output = output.replace(/\[(.*?)\][\[\(](.*?)[\]\)]/g, "$1 ($2)")
|
}
|
output = output
|
.replace(/<[^>]*>/g, "")
|
.replace(/^[=\-]{2,}\s*$/g, "")
|
.replace(/\[\^.+?\](\: .*?$)?/g, "")
|
.replace(/\s{0,2}\[.*?\]: .*?$/g, "")
|
.replace(/\!\[(.*?)\][\[\(].*?[\]\)]/g, options.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*$/g, "")
|
.replace(
|
/^(\n)?\s{0,}#{1,6}\s+| {0,}(\n)?\s{0,}#{0,} {0,}(\n)?\s{0,}$/gm,
|
"$1$2$3"
|
)
|
.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, "$1")
|
.replace(/\n{2,}/g, "\n\n");
|
} catch (e) {
|
console.error(e);
|
return markdown;
|
}
|
return output;
|
};
|
</script>
|
<script>
|
const contentIndex = new FlexSearch.Worker({
|
tokenize: "reverse",
|
charset: "latin:extra",
|
suggest: true,
|
})
|
|
const scrapedContent = {{$.Site.Data.contentIndex}}
|
for (const [key, value] of Object.entries(scrapedContent)) {
|
contentIndex.add(key, value.content)
|
}
|
|
const highlight = (content, term) => {
|
const highlightWindow = 15
|
const tokenizedTerm = term.split(/\s+/).filter(t => t !== "")
|
const splitText = content.split(/\s+/).filter(t => t !== "")
|
const includesCheck = (token) => tokenizedTerm.some(term => token.toLowerCase().includes(term.toLowerCase()))
|
|
const occurrencesIndices = splitText
|
.map(includesCheck)
|
|
// calculate best index
|
let bestSum = 0
|
let bestIndex = 0
|
for (let i = 0; i < Math.max(occurrencesIndices.length - highlightWindow, 0); i++) {
|
const window = occurrencesIndices.slice(i, i + highlightWindow)
|
const windowSum = window.reduce((total, cur) => total + cur, 0)
|
if (windowSum >= bestSum) {
|
bestSum = windowSum
|
bestIndex = i
|
}
|
}
|
|
const startIndex = Math.max(bestIndex - highlightWindow, 0)
|
const endIndex = Math.min(startIndex + 2 * highlightWindow, splitText.length)
|
const mappedText = splitText
|
.slice(startIndex, endIndex)
|
.map(token => {
|
if (includesCheck(token)) {
|
return `<span class="search-highlight">${token}</span>`
|
}
|
return token
|
})
|
.join(" ")
|
.replaceAll('</span> <span class="search-highlight">', " ")
|
return `${startIndex === 0 ? "" : "..."}${mappedText}${endIndex === splitText.length ? "" : "..."}`
|
}
|
|
const resultToHTML = ({url, title, content, term}) => {
|
const md = content.split("---")[2]
|
const text = removeMarkdown(md)
|
const resultTitle = highlight(title, term)
|
const resultText = highlight(text, term)
|
return `<button class="result-card" id="${url}">
|
<h3>${resultTitle}</h3>
|
<p>${resultText}</p>
|
</button>`
|
}
|
|
const source = document.getElementById('search-bar')
|
const results = document.getElementById("results-container")
|
let term
|
source.addEventListener("keyup", (e) => {
|
if (e.key === "Enter") {
|
const anchor = document.getElementsByClassName("result-card")[0]
|
window.location.href = `${anchor.id}#:~:text=${encodeURIComponent(term)}`
|
}
|
})
|
source.addEventListener('input', (e) => {
|
term = e.target.value
|
contentIndex.search(term, {
|
limit: 20,
|
depth: 3,
|
suggest: true,
|
}).then(searchResults => {
|
const resultIds = [...new Set(searchResults)]
|
const finalResults = resultIds.map(id => ({
|
url: id,
|
title: scrapedContent[id].title,
|
content: scrapedContent[id].content
|
}))
|
|
// display
|
if (finalResults.length === 0) {
|
results.innerHTML = `<div class="result-card">
|
<p>No results.</p>
|
</div>`
|
} else {
|
results.innerHTML = finalResults
|
.map(result => resultToHTML({
|
...result,
|
term,
|
}))
|
.join("\n")
|
const anchors = document.getElementsByClassName("result-card");
|
[...anchors].forEach(anchor => {
|
anchor.onclick = () => {
|
window.location.href = `${anchor.id}#:~:text=${encodeURIComponent(term)}`
|
}
|
})
|
}
|
})
|
})
|
|
|
const searchContainer = document.getElementById("search-container")
|
|
function openSearch() {
|
if (searchContainer.style.display === "none" || searchContainer.style.display === "") {
|
source.value = ""
|
results.innerHTML = ""
|
searchContainer.style.display = "block"
|
source.focus()
|
} else {
|
searchContainer.style.display = "none"
|
}
|
}
|
|
function closeSearch() {
|
searchContainer.style.display = "none"
|
}
|
|
document.addEventListener('keydown', (event) => {
|
if (event.key === "/") {
|
event.preventDefault()
|
openSearch()
|
}
|
if (event.key === "Escape") {
|
event.preventDefault()
|
closeSearch()
|
}
|
})
|
|
window.addEventListener('DOMContentLoaded', () => {
|
const searchButton = document.getElementById("search-icon")
|
searchButton.addEventListener('click', (evt) => {
|
openSearch()
|
})
|
searchButton.addEventListener('keydown', (evt) => {
|
openSearch()
|
})
|
searchContainer.addEventListener('click', (evt) => {
|
closeSearch()
|
})
|
document.getElementById("search-space").addEventListener('click', (evt) => {
|
evt.stopPropagation()
|
})
|
})
|
|
</script>
|
