From dff5ae0d4debfdb2de226984e86a987d99d039ad Mon Sep 17 00:00:00 2001
From: Jacky Zhao <j.zhao2k19@gmail.com>
Date: Thu, 14 Jul 2022 20:09:21 +0000
Subject: [PATCH] style: improve header anchor styling
---
assets/js/search.js | 233 +++++++++++++++++++++++++++++----------------------------
1 files changed, 118 insertions(+), 115 deletions(-)
diff --git a/assets/js/search.js b/assets/js/search.js
index 56ce1b0..5896061 100644
--- a/assets/js/search.js
+++ b/assets/js/search.js
@@ -7,68 +7,122 @@
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')
+ 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, '')
+ .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, "$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(/([\*_]{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, '$1')
- .replace(/\n{2,}/g, '\n\n')
+ .replace(/<[^>]*>/g, "")
+ .replace(/^[=\-]{2,}\s*$/g, "")
+ .replace(/\[\^.+?\](\: .*?$)?/g, "")
+ .replace(/(#{1,6})\s+(.+)\1?/g, "<b>$2</b>")
+ .replace(/\s{0,2}\[.*?\]: .*?$/g, "")
+ .replace(/\!\[(.*?)\][\[\(].*?[\]\)]/g, options.useImgAltText ? "$1" : "")
+ .replace(/\[(.*?)\][\[\(].*?[\]\)]/g, "<a>$1</a>")
+ .replace(/!?\[\[\S[^\[\]\|]*(?:\|([^\[\]]*))?\S\]\]/g, "<a>$1</a>")
+ .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, "$1")
+ .replace(/\n{2,}/g, "\n\n")
} catch (e) {
console.error(e)
return markdown
}
return output
-};
+}
// -----
-(async function() {
+const highlight = (content, term) => {
+ const highlightWindow = 20
+
+ // try to find direct match first
+ const directMatchIdx = content.indexOf(term)
+ if (directMatchIdx !== -1) {
+ const h = highlightWindow / 2
+ const before = content.substring(0, directMatchIdx).split(" ").slice(-h)
+ const after = content
+ .substring(directMatchIdx + term.length, content.length - 1)
+ .split(" ")
+ .slice(0, h)
+ return (
+ (before.length == h ? `...${before.join(" ")}` : before.join(" ")) +
+ `<span class="search-highlight">${term}</span>` +
+ after.join(" ")
+ )
+ }
+
+ const tokenizedTerm = term.split(/\s+/).filter((t) => t !== "")
+ const splitText = content.split(/\s+/).filter((t) => t !== "")
+ const includesCheck = (token) =>
+ tokenizedTerm.some((term) => token.toLowerCase().startsWith(term.toLowerCase()))
+
+ const occurrencesIndices = splitText.map(includesCheck)
+
+ // calculate best index
+ let bestSum = 0
+ let bestIndex = 0
+ for (let i = 0; i < Math.max(occurrencesIndices.length - highlightWindow, 0); i++) {
+ const window = occurrencesIndices.slice(i, i + highlightWindow)
+ const windowSum = window.reduce((total, cur) => total + cur, 0)
+ if (windowSum >= bestSum) {
+ bestSum = windowSum
+ bestIndex = i
+ }
+ }
+
+ const startIndex = Math.max(bestIndex - highlightWindow, 0)
+ const endIndex = Math.min(startIndex + 2 * highlightWindow, splitText.length)
+ const mappedText = splitText
+ .slice(startIndex, endIndex)
+ .map((token) => {
+ if (includesCheck(token)) {
+ return `<span class="search-highlight">${token}</span>`
+ }
+ return token
+ })
+ .join(" ")
+ .replaceAll('</span> <span class="search-highlight">', " ")
+ return `${startIndex === 0 ? "" : "..."}${mappedText}${
+ endIndex === splitText.length ? "" : "..."
+ }`
+}
+
+;(async function () {
const encoder = (str) => str.toLowerCase().split(/([^a-z]|[^\x00-\x7F])+/)
const contentIndex = new FlexSearch.Document({
cache: true,
- charset: 'latin:extra',
+ charset: "latin:extra",
optimize: true,
index: [
{
- field: 'content',
- tokenize: 'reverse',
+ field: "content",
+ tokenize: "reverse",
encode: encoder,
},
{
- field: 'title',
- tokenize: 'forward',
+ field: "title",
+ tokenize: "forward",
encode: encoder,
},
],
@@ -83,52 +137,6 @@
})
}
- const highlight = (content, term) => {
- const highlightWindow = 20
- const tokenizedTerm = term.split(/\s+/).filter((t) => t !== '')
- const splitText = content.split(/\s+/).filter((t) => t !== '')
- const includesCheck = (token) =>
- tokenizedTerm.some((term) =>
- token.toLowerCase().startsWith(term.toLowerCase())
- )
-
- const occurrencesIndices = splitText.map(includesCheck)
-
- // calculate best index
- let bestSum = 0
- let bestIndex = 0
- for (
- let i = 0;
- i < Math.max(occurrencesIndices.length - highlightWindow, 0);
- i++
- ) {
- const window = occurrencesIndices.slice(i, i + highlightWindow)
- const windowSum = window.reduce((total, cur) => total + cur, 0)
- if (windowSum >= bestSum) {
- bestSum = windowSum
- bestIndex = i
- }
- }
-
- const startIndex = Math.max(bestIndex - highlightWindow, 0)
- const endIndex = Math.min(
- startIndex + 2 * highlightWindow,
- splitText.length
- )
- const mappedText = splitText
- .slice(startIndex, endIndex)
- .map((token) => {
- if (includesCheck(token)) {
- return `<span class="search-highlight">${token}</span>`
- }
- return token
- })
- .join(' ')
- .replaceAll('</span> <span class="search-highlight">', ' ')
- return `${startIndex === 0 ? '' : '...'}${mappedText}${endIndex === splitText.length ? '' : '...'
- }`
- }
-
const resultToHTML = ({ url, title, content, term }) => {
const text = removeMarkdown(content)
const resultTitle = highlight(title, term)
@@ -141,11 +149,9 @@
const redir = (id, term) => {
// SPA navigation
- window.navigate(
- new URL(
- `${BASE_URL.slice(0, -1)}${id}#:~:text=${encodeURIComponent(term)}/`
- ),
- '.singlePage'
+ window.Million.navigate(
+ new URL(`${BASE_URL.replace(/\/$/g, "")}${id}#:~:text=${encodeURIComponent(term)}/`),
+ ".singlePage",
)
closeSearch()
}
@@ -157,24 +163,24 @@
content: content[id].content,
})
- const source = document.getElementById('search-bar')
- const results = document.getElementById('results-container')
+ 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]
+ 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
const searchResults = contentIndex.search(term, [
{
- field: 'content',
+ field: "content",
limit: 10,
},
{
- field: 'title',
+ field: "title",
limit: 5,
},
])
@@ -186,7 +192,7 @@
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)
// display
@@ -201,58 +207,55 @@
resultToHTML({
...result,
term,
- })
+ }),
)
- .join('\n')
- const anchors = [...document.getElementsByClassName('result-card')]
+ .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'
+ 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'
+ searchContainer.style.display = "none"
}
- document.addEventListener('keydown', (event) => {
- if (event.key === 'k' && (event.ctrlKey || event.metaKey)) {
+ document.addEventListener("keydown", (event) => {
+ if (event.key === "k" && (event.ctrlKey || event.metaKey)) {
event.preventDefault()
openSearch()
}
- if (event.key === 'Escape') {
+ if (event.key === "Escape") {
event.preventDefault()
closeSearch()
}
})
- const searchButton = document.getElementById('search-icon')
- searchButton.addEventListener('click', (evt) => {
+ const searchButton = document.getElementById("search-icon")
+ searchButton.addEventListener("click", (evt) => {
openSearch()
})
- searchButton.addEventListener('keydown', (evt) => {
+ searchButton.addEventListener("keydown", (evt) => {
openSearch()
})
- searchContainer.addEventListener('click', (evt) => {
+ searchContainer.addEventListener("click", (evt) => {
closeSearch()
})
- document.getElementById('search-space').addEventListener('click', (evt) => {
+ document.getElementById("search-space").addEventListener("click", (evt) => {
evt.stopPropagation()
})
})()
--
Gitblit v1.10.0