From e4cc625c33ecd2992dcf60f408417c3067b4fa2b Mon Sep 17 00:00:00 2001
From: Aiden Bai <aiden.bai05@gmail.com>
Date: Tue, 03 May 2022 16:34:27 +0000
Subject: [PATCH] Add future note about init function
---
assets/js/search.js | 358 ++++++++++++++++++++++++++++++----------------------------
1 files changed, 185 insertions(+), 173 deletions(-)
diff --git a/assets/js/search.js b/assets/js/search.js
index 592d859..f124d58 100644
--- a/assets/js/search.js
+++ b/assets/js/search.js
@@ -1,132 +1,136 @@
// code from https://github.com/danestves/markdown-to-text
const removeMarkdown = (
- markdown,
- options = {
- listUnicodeChar: false,
- stripListLeaders: true,
- gfm: true,
- useImgAltText: false,
- preserveLinks: false,
- }
+ markdown,
+ options = {
+ listUnicodeChar: false,
+ stripListLeaders: true,
+ gfm: true,
+ useImgAltText: false,
+ preserveLinks: false,
+ }
) => {
- let output = markdown || "";
- output = output.replace(/^(-\s*?|\*\s*?|_\s*?){3,}\s*$/gm, "");
+ let output = markdown || ''
+ output = output.replace(/^(-\s*?|\*\s*?|_\s*?){3,}\s*$/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;
+ 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')
}
- return output;
+ 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(/(#{1,6})\s+(.+)\1?/g, '<b>$2</b>')
+ .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(/([\*_]{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
};
// -----
(async function() {
- const contentIndex = new FlexSearch.Document({
+ const encoder = (str) => str.toLowerCase().split(/([^a-z]|[^\x00-\x7F])+/)
+ const contentIndex = new FlexSearch.Document({
cache: true,
- charset: "latin:extra",
+ charset: 'latin:extra',
optimize: true,
- worker: true,
- document: {
- index: [{
- field: "content",
- tokenize: "strict",
- context: {
- resolution: 5,
- depth: 3,
- bidirectional: true
- },
- suggest: true,
- }, {
- field: "title",
- tokenize: "forward",
- }]
- }
- })
+ index: [
+ {
+ field: 'content',
+ tokenize: 'reverse',
+ encode: encoder,
+ },
+ {
+ field: 'title',
+ tokenize: 'forward',
+ encode: encoder,
+ },
+ ],
+ })
- const { content } = await fetchData
- for (const [key, value] of Object.entries(content)) {
+ const { content } = await fetchData
+ for (const [key, value] of Object.entries(content)) {
contentIndex.add({
- id: key,
- title: value.title,
- content: removeMarkdown(value.content),
+ id: key,
+ title: value.title,
+ content: removeMarkdown(value.content),
})
- }
+ }
- const highlight = (content, term) => {
+ const highlight = (content, term) => {
const highlightWindow = 20
- const tokenizedTerm = term.split(/\s+/).filter(t => t !== "")
- const splitText = content.split(/\s+/).filter(t => t !== "")
- const includesCheck = (token) => tokenizedTerm.some(term => token.toLowerCase().startsWith(term.toLowerCase()))
+ const tokenizedTerm = term.split(/\s+/).filter((t) => t !== '')
+ const splitText = content.split(/\s+/).filter((t) => t !== '')
+ const includesCheck = (token) =>
+ tokenizedTerm.some((term) =>
+ token.toLowerCase().startsWith(term.toLowerCase())
+ )
- const occurrencesIndices = splitText
- .map(includesCheck)
+ 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) {
+ 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 endIndex = Math.min(
+ startIndex + 2 * highlightWindow,
+ splitText.length
+ )
const mappedText = splitText
- .slice(startIndex, endIndex)
- .map(token => {
+ .slice(startIndex, endIndex)
+ .map((token) => {
if (includesCheck(token)) {
- return `<span class="search-highlight">${token}</span>`
+ return `<span class="search-highlight">${token}</span>`
}
return token
- })
- .join(" ")
- .replaceAll('</span> <span class="search-highlight">', " ")
- return `${startIndex === 0 ? "" : "..."}${mappedText}${endIndex === splitText.length ? "" : "..."}`
- }
+ })
+ .join(' ')
+ .replaceAll('</span> <span class="search-highlight">', ' ')
+ return `${startIndex === 0 ? '' : '...'}${mappedText}${endIndex === splitText.length ? '' : '...'
+ }`
+ }
- const resultToHTML = ({url, title, content, term}) => {
+ const resultToHTML = ({ url, title, content, term }) => {
const text = removeMarkdown(content)
const resultTitle = highlight(title, term)
const resultText = highlight(text, term)
@@ -134,114 +138,122 @@
<h3>${resultTitle}</h3>
<p>${resultText}</p>
</button>`
- }
+ }
- const redir = (id, term) => {
- window.location.href = BASE_URL + `${id}#:~:text=${encodeURIComponent(term)}`
- }
+ const redir = (id, term) => {
+ // SPA navigation
+ window.navigate(
+ new URL(
+ `${BASE_URL}${id}#:~:text=${encodeURIComponent(term)}/`
+ ),
+ '.singlePage'
+ )
+ closeSearch()
+ }
- const formatForDisplay = id => ({
+ const formatForDisplay = (id) => ({
id,
url: id,
title: content[id].title,
- content: content[id].content
- })
+ content: content[id].content,
+ })
- 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]
- redir(anchor.id, term)
+ 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]
+ redir(anchor.id, term)
}
- })
- source.addEventListener('input', (e) => {
+ })
+ source.addEventListener('input', (e) => {
term = e.target.value
- contentIndex.search(term, [
- {
- field: "content",
+ const searchResults = contentIndex.search(term, [
+ {
+ field: 'content',
limit: 10,
- suggest: true,
- },
- {
- field: "title",
+ },
+ {
+ field: 'title',
limit: 5,
- }
- ]).then(searchResults => {
- const getByField = field => {
- const results = searchResults.filter(x => x.field === field)
- if (results.length === 0) {
+ },
+ ])
+ const getByField = (field) => {
+ const results = searchResults.filter((x) => x.field === field)
+ if (results.length === 0) {
return []
- } else {
+ } else {
return [...results[0].result]
- }
+ }
}
const allIds = new Set([...getByField('title'), ...getByField('content')])
const finalResults = [...allIds].map(formatForDisplay)
// display
if (finalResults.length === 0) {
- results.innerHTML = `<button class="result-card">
+ results.innerHTML = `<button class="result-card">
<h3>No results.</h3>
<p>Try another search term?</p>
</button>`
} else {
- results.innerHTML = finalResults
- .map(result => resultToHTML({
+ results.innerHTML = finalResults
+ .map((result) =>
+ resultToHTML({
...result,
term,
- }))
- .join("\n")
- const anchors = document.getElementsByClassName("result-card");
- [...anchors].forEach(anchor => {
+ })
+ )
+ .join('\n')
+ const anchors = [...document.getElementsByClassName('result-card')]
+ anchors.forEach((anchor) => {
anchor.onclick = () => redir(anchor.id, term)
- })
+ })
}
- })
- })
+ })
+ const searchContainer = document.getElementById('search-container')
- 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()
+ 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"
+ searchContainer.style.display = 'none'
}
- }
+ }
- function closeSearch() {
- searchContainer.style.display = "none"
- }
+ function closeSearch() {
+ searchContainer.style.display = 'none'
+ }
- document.addEventListener('keydown', (event) => {
- if (event.key === "/") {
- event.preventDefault()
+ document.addEventListener('keydown', (event) => {
+ if (event.key === 'k' && (event.ctrlKey || event.metaKey)) {
+ event.preventDefault()
+ openSearch()
+ }
+ if (event.key === 'Escape') {
+ event.preventDefault()
+ closeSearch()
+ }
+ })
+
+ const searchButton = document.getElementById('search-icon')
+ searchButton.addEventListener('click', (evt) => {
openSearch()
- }
- if (event.key === "Escape") {
- event.preventDefault()
+ })
+ searchButton.addEventListener('keydown', (evt) => {
+ openSearch()
+ })
+ searchContainer.addEventListener('click', (evt) => {
closeSearch()
- }
- })
-
- 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) => {
+ })
+ document.getElementById('search-space').addEventListener('click', (evt) => {
evt.stopPropagation()
- })
+ })
})()
-
--
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