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Prerender latex

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hugo
Aiden Bai 3 years ago
parent 84c6e1efed
commit a1293f820a
No known key found for this signature in database
GPG Key ID: D37584388675FF3A
3 changed files with 114 additions and 111 deletions
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30
assets/js/router.js
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@ -1,16 +1,26 @@
import { router, navigate, reload, prefetch } from "https://unpkg.com/million@1.9.6/dist/router.mjs" import {
apply,
navigate,
prefetch,
router,
} from "https://unpkg.com/million@1.9.8-0/dist/router.mjs"
export const attachSPARouting = (draw) => { export const attachSPARouting = (init, rerender) => {
// Attach SPA functions to the global Million namespace // Attach SPA functions to the global Million namespace
window.Million = { window.Million = {
router, apply,
navigate, navigate,
reload,
prefetch, prefetch,
}; router,
router(".singlePage") }
// We need on initial load, then subsequent redirs
// requestAnimationFrame() delays graph draw until SPA routing is finished const render = () => requestAnimationFrame(rerender)
reload(draw)
window.addEventListener("DOMContentLoaded", () => requestAnimationFrame(draw)) window.addEventListener("DOMContentLoaded", () => {
apply((doc) => init(doc))
init()
router(".singlePage")
render()
})
window.addEventListener("million:navigate", render)
} }

171
assets/js/search.js
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@ -7,47 +7,44 @@ const removeMarkdown = (
gfm: true, gfm: true,
useImgAltText: false, useImgAltText: false,
preserveLinks: false, preserveLinks: false,
} },
) => { ) => {
let output = markdown || '' let output = markdown || ""
output = output.replace(/^(-\s*?|\*\s*?|_\s*?){3,}\s*$/gm, '') output = output.replace(/^(-\s*?|\*\s*?|_\s*?){3,}\s*$/gm, "")
try { try {
if (options.stripListLeaders) { if (options.stripListLeaders) {
if (options.listUnicodeChar) if (options.listUnicodeChar)
output = output.replace( output = output.replace(/^([\s\t]*)([\*\-\+]|\d+\.)\s+/gm, options.listUnicodeChar + " $1")
/^([\s\t]*)([\*\-\+]|\d+\.)\s+/gm, else output = output.replace(/^([\s\t]*)([\*\-\+]|\d+\.)\s+/gm, "$1")
options.listUnicodeChar + ' $1'
)
else output = output.replace(/^([\s\t]*)([\*\-\+]|\d+\.)\s+/gm, '$1')
} }
if (options.gfm) { if (options.gfm) {
output = output output = output
.replace(/\n={2,}/g, '\n') .replace(/\n={2,}/g, "\n")
.replace(/~{3}.*\n/g, '') .replace(/~{3}.*\n/g, "")
.replace(/~~/g, '') .replace(/~~/g, "")
.replace(/`{3}.*\n/g, '') .replace(/`{3}.*\n/g, "")
} }
if (options.preserveLinks) { if (options.preserveLinks) {
output = output.replace(/\[(.*?)\][\[\(](.*?)[\]\)]/g, '$1 ($2)') output = output.replace(/\[(.*?)\][\[\(](.*?)[\]\)]/g, "$1 ($2)")
} }
output = output output = output
.replace(/<[^>]*>/g, '') .replace(/<[^>]*>/g, "")
.replace(/^[=\-]{2,}\s*$/g, '') .replace(/^[=\-]{2,}\s*$/g, "")
.replace(/\[\^.+?\](\: .*?$)?/g, '') .replace(/\[\^.+?\](\: .*?$)?/g, "")
.replace(/(#{1,6})\s+(.+)\1?/g, '<b>$2</b>') .replace(/(#{1,6})\s+(.+)\1?/g, "<b>$2</b>")
.replace(/\s{0,2}\[.*?\]: .*?$/g, '') .replace(/\s{0,2}\[.*?\]: .*?$/g, "")
.replace(/\!\[(.*?)\][\[\(].*?[\]\)]/g, options.useImgAltText ? '$1' : '') .replace(/\!\[(.*?)\][\[\(].*?[\]\)]/g, options.useImgAltText ? "$1" : "")
.replace(/\[(.*?)\][\[\(].*?[\]\)]/g, '<a>$1</a>') .replace(/\[(.*?)\][\[\(].*?[\]\)]/g, "<a>$1</a>")
.replace(/!?\[\[\S[^\[\]\|]*(?:\|([^\[\]]*))?\S\]\]/g, '<a>$1</a>') .replace(/!?\[\[\S[^\[\]\|]*(?:\|([^\[\]]*))?\S\]\]/g, "<a>$1</a>")
.replace(/^\s{0,3}>\s?/g, '') .replace(/^\s{0,3}>\s?/g, "")
.replace(/(^|\n)\s{0,3}>\s?/g, '\n\n') .replace(/(^|\n)\s{0,3}>\s?/g, "\n\n")
.replace(/^\s{1,2}\[(.*?)\]: (\S+)( ".*?")?\s*$/g, '') .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(/([\*_]{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(/(`{3,})(.*?)\1/gm, "$2")
.replace(/`(.+?)`/g, '$1') .replace(/`(.+?)`/g, "$1")
.replace(/\n{2,}/g, '\n\n') .replace(/\n{2,}/g, "\n\n")
} catch (e) { } catch (e) {
console.error(e) console.error(e)
return markdown return markdown
@ -64,27 +61,28 @@ const highlight = (content, term) => {
if (directMatchIdx !== -1) { if (directMatchIdx !== -1) {
const h = highlightWindow / 2 const h = highlightWindow / 2
const before = content.substring(0, directMatchIdx).split(" ").slice(-h) const before = content.substring(0, directMatchIdx).split(" ").slice(-h)
const after = content.substring(directMatchIdx + term.length, content.length - 1).split(" ").slice(0, h) const after = content
return (before.length == h ? `...${before.join(" ")}` : before.join(" ")) + `<span class="search-highlight">${term}</span>` + after.join(" ") .substring(directMatchIdx + term.length, content.length - 1)
.split(" ")
.slice(0, h)
return (
(before.length == h ? `...${before.join(" ")}` : before.join(" ")) +
`<span class="search-highlight">${term}</span>` +
after.join(" ")
)
} }
const tokenizedTerm = term.split(/\s+/).filter((t) => t !== '') const tokenizedTerm = term.split(/\s+/).filter((t) => t !== "")
const splitText = content.split(/\s+/).filter((t) => t !== '') const splitText = content.split(/\s+/).filter((t) => t !== "")
const includesCheck = (token) => const includesCheck = (token) =>
tokenizedTerm.some((term) => tokenizedTerm.some((term) => token.toLowerCase().startsWith(term.toLowerCase()))
token.toLowerCase().startsWith(term.toLowerCase())
)
const occurrencesIndices = splitText.map(includesCheck) const occurrencesIndices = splitText.map(includesCheck)
// calculate best index // calculate best index
let bestSum = 0 let bestSum = 0
let bestIndex = 0 let bestIndex = 0
for ( for (let i = 0; i < Math.max(occurrencesIndices.length - highlightWindow, 0); i++) {
let i = 0;
i < Math.max(occurrencesIndices.length - highlightWindow, 0);
i++
) {
const window = occurrencesIndices.slice(i, i + highlightWindow) const window = occurrencesIndices.slice(i, i + highlightWindow)
const windowSum = window.reduce((total, cur) => total + cur, 0) const windowSum = window.reduce((total, cur) => total + cur, 0)
if (windowSum >= bestSum) { if (windowSum >= bestSum) {
@ -94,10 +92,7 @@ const highlight = (content, term) => {
} }
const startIndex = Math.max(bestIndex - highlightWindow, 0) const startIndex = Math.max(bestIndex - highlightWindow, 0)
const endIndex = Math.min( const endIndex = Math.min(startIndex + 2 * highlightWindow, splitText.length)
startIndex + 2 * highlightWindow,
splitText.length
)
const mappedText = splitText const mappedText = splitText
.slice(startIndex, endIndex) .slice(startIndex, endIndex)
.map((token) => { .map((token) => {
@ -106,27 +101,28 @@ const highlight = (content, term) => {
} }
return token return token
}) })
.join(' ') .join(" ")
.replaceAll('</span> <span class="search-highlight">', ' ') .replaceAll('</span> <span class="search-highlight">', " ")
return `${startIndex === 0 ? '' : '...'}${mappedText}${endIndex === splitText.length ? '' : '...' return `${startIndex === 0 ? "" : "..."}${mappedText}${
}` endIndex === splitText.length ? "" : "..."
}; }`
}
(async function() { ;(async function () {
const encoder = (str) => str.toLowerCase().split(/([^a-z]|[^\x00-\x7F])+/) const encoder = (str) => str.toLowerCase().split(/([^a-z]|[^\x00-\x7F])+/)
const contentIndex = new FlexSearch.Document({ const contentIndex = new FlexSearch.Document({
cache: true, cache: true,
charset: 'latin:extra', charset: "latin:extra",
optimize: true, optimize: true,
index: [ index: [
{ {
field: 'content', field: "content",
tokenize: 'reverse', tokenize: "reverse",
encode: encoder, encode: encoder,
}, },
{ {
field: 'title', field: "title",
tokenize: 'forward', tokenize: "forward",
encode: encoder, encode: encoder,
}, },
], ],
@ -154,10 +150,8 @@ const highlight = (content, term) => {
const redir = (id, term) => { const redir = (id, term) => {
// SPA navigation // SPA navigation
window.Million.navigate( window.Million.navigate(
new URL( new URL(`${BASE_URL.replace(/\/$/g, "")}${id}#:~:text=${encodeURIComponent(term)}/`),
`${BASE_URL.replace(/\/$/g, "")}${id}#:~:text=${encodeURIComponent(term)}/` ".singlePage",
),
'.singlePage'
) )
closeSearch() closeSearch()
} }
@ -169,24 +163,24 @@ const highlight = (content, term) => {
content: content[id].content, content: content[id].content,
}) })
const source = document.getElementById('search-bar') const source = document.getElementById("search-bar")
const results = document.getElementById('results-container') const results = document.getElementById("results-container")
let term let term
source.addEventListener('keyup', (e) => { source.addEventListener("keyup", (e) => {
if (e.key === 'Enter') { if (e.key === "Enter") {
const anchor = document.getElementsByClassName('result-card')[0] const anchor = document.getElementsByClassName("result-card")[0]
redir(anchor.id, term) redir(anchor.id, term)
} }
}) })
source.addEventListener('input', (e) => { source.addEventListener("input", (e) => {
term = e.target.value term = e.target.value
const searchResults = contentIndex.search(term, [ const searchResults = contentIndex.search(term, [
{ {
field: 'content', field: "content",
limit: 10, limit: 10,
}, },
{ {
field: 'title', field: "title",
limit: 5, limit: 5,
}, },
]) ])
@ -198,7 +192,7 @@ const highlight = (content, term) => {
return [...results[0].result] return [...results[0].result]
} }
} }
const allIds = new Set([...getByField('title'), ...getByField('content')]) const allIds = new Set([...getByField("title"), ...getByField("content")])
const finalResults = [...allIds].map(formatForDisplay) const finalResults = [...allIds].map(formatForDisplay)
// display // display
@ -213,58 +207,55 @@ const highlight = (content, term) => {
resultToHTML({ resultToHTML({
...result, ...result,
term, term,
}) }),
) )
.join('\n') .join("\n")
const anchors = [...document.getElementsByClassName('result-card')] const anchors = [...document.getElementsByClassName("result-card")]
anchors.forEach((anchor) => { anchors.forEach((anchor) => {
anchor.onclick = () => redir(anchor.id, term) anchor.onclick = () => redir(anchor.id, term)
}) })
} }
}) })
const searchContainer = document.getElementById('search-container') const searchContainer = document.getElementById("search-container")
function openSearch() { function openSearch() {
if ( if (searchContainer.style.display === "none" || searchContainer.style.display === "") {
searchContainer.style.display === 'none' || source.value = ""
searchContainer.style.display === '' results.innerHTML = ""
) { searchContainer.style.display = "block"
source.value = ''
results.innerHTML = ''
searchContainer.style.display = 'block'
source.focus() source.focus()
} else { } else {
searchContainer.style.display = 'none' searchContainer.style.display = "none"
} }
} }
function closeSearch() { function closeSearch() {
searchContainer.style.display = 'none' searchContainer.style.display = "none"
} }
document.addEventListener('keydown', (event) => { document.addEventListener("keydown", (event) => {
if (event.key === 'k' && (event.ctrlKey || event.metaKey)) { if (event.key === "k" && (event.ctrlKey || event.metaKey)) {
event.preventDefault() event.preventDefault()
openSearch() openSearch()
} }
if (event.key === 'Escape') { if (event.key === "Escape") {
event.preventDefault() event.preventDefault()
closeSearch() closeSearch()
} }
}) })
const searchButton = document.getElementById('search-icon') const searchButton = document.getElementById("search-icon")
searchButton.addEventListener('click', (evt) => { searchButton.addEventListener("click", (evt) => {
openSearch() openSearch()
}) })
searchButton.addEventListener('keydown', (evt) => { searchButton.addEventListener("keydown", (evt) => {
openSearch() openSearch()
}) })
searchContainer.addEventListener('click', (evt) => { searchContainer.addEventListener("click", (evt) => {
closeSearch() closeSearch()
}) })
document.getElementById('search-space').addEventListener('click', (evt) => { document.getElementById("search-space").addEventListener("click", (evt) => {
evt.stopPropagation() evt.stopPropagation()
}) })
})() })()

24
layouts/partials/head.html
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@ -10,11 +10,7 @@
end }} end }}
</title> </title>
<meta name="viewport" content="width=device-width, initial-scale=1" /> <meta name="viewport" content="width=device-width, initial-scale=1" />
<link <link rel="shortcut icon" type="image/png" href="{{$.Site.BaseURL}}/icon.png" />
rel="shortcut icon"
type="image/png"
href="{{$.Site.BaseURL}}/icon.png"
/>
<!-- CSS Stylesheets and Fonts --> <!-- CSS Stylesheets and Fonts -->
<link <link
@ -61,12 +57,12 @@
content, content,
})) }))
const draw = () => { const render = () => {
// NOTE: everything within this callback will be executed for every page navigation. This is a good place to put JavaScript that loads or modifies data on the page. // NOTE: everything within this callback will be executed for every page navigation. This is a good place to put JavaScript that loads or modifies data on the page, adds event listeners, etc. If you are only dealing with basic DOM replacement, use the init function
{{if $.Site.Data.config.enableFooter}} {{if $.Site.Data.config.enableFooter}}
const container = document.getElementById("graph-container") const container = document.getElementById("graph-container")
// retry if the graph is not ready // retry if the graph is not ready
if (!container) return requestAnimationFrame(draw) if (!container) return requestAnimationFrame(render)
// clear the graph in case there is anything within it // clear the graph in case there is anything within it
container.textContent = "" container.textContent = ""
@ -79,6 +75,7 @@
{{$.Site.Data.graphConfig.enableZoom}} {{$.Site.Data.graphConfig.enableZoom}}
); );
{{end}} {{end}}
{{if $.Site.Data.config.enableLinkPreview}} {{if $.Site.Data.config.enableLinkPreview}}
initPopover( initPopover(
{{strings.TrimRight "/" .Site.BaseURL }}, {{strings.TrimRight "/" .Site.BaseURL }},
@ -86,8 +83,12 @@
{{$.Site.Data.config.enableLatex}} {{$.Site.Data.config.enableLatex}}
) )
{{end}} {{end}}
}
const init = (doc = document) => {
// NOTE: everything within this callback will be executed for initial page navigation. This is a good place to put JavaScript that only replaces DOM nodes.
{{if $.Site.Data.config.enableLatex}} {{if $.Site.Data.config.enableLatex}}
renderMathInElement(document.body, { renderMathInElement(doc.body, {
delimiters: [ delimiters: [
{left: '$$', right: '$$', display: true}, {left: '$$', right: '$$', display: true},
{left: '$', right: '$', display: false}, {left: '$', right: '$', display: false},
@ -102,7 +103,7 @@
resources.Minify }} resources.Minify }}
<script type="module"> <script type="module">
import { attachSPARouting } from "{{$router.Permalink}}" import { attachSPARouting } from "{{$router.Permalink}}"
attachSPARouting(draw) attachSPARouting(init, render)
</script> </script>
{{else}} {{else}}
<script> <script>
@ -110,7 +111,8 @@
navigate: (url) => (window.location.href = url), navigate: (url) => (window.location.href = url),
prefetch: () => {}, prefetch: () => {},
} }
draw() init()
render()
</script> </script>
{{end}} {{end}}
</head> </head>

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