mirror of
https://github.com/alrayyes/wiki.git
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9ff4626d25
* fix: change callout metadata regex to include non-letter characters * fix: make metadata regex non-greedy This allows for users to have callouts such as > [!NOTE|left foo-bar 123] a ]+ title with square brackets [s] a > Contents
713 lines
25 KiB
TypeScript
713 lines
25 KiB
TypeScript
import { QuartzTransformerPlugin } from "../types"
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import { Root, Html, BlockContent, DefinitionContent, Paragraph, Code } from "mdast"
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import { Element, Literal, Root as HtmlRoot } from "hast"
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import { ReplaceFunction, findAndReplace as mdastFindReplace } from "mdast-util-find-and-replace"
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import { slug as slugAnchor } from "github-slugger"
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import rehypeRaw from "rehype-raw"
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import { SKIP, visit } from "unist-util-visit"
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import path from "path"
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import { JSResource } from "../../util/resources"
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// @ts-ignore
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import calloutScript from "../../components/scripts/callout.inline.ts"
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// @ts-ignore
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import checkboxScript from "../../components/scripts/checkbox.inline.ts"
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import { FilePath, pathToRoot, slugTag, slugifyFilePath } from "../../util/path"
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import { toHast } from "mdast-util-to-hast"
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import { toHtml } from "hast-util-to-html"
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import { PhrasingContent } from "mdast-util-find-and-replace/lib"
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import { capitalize } from "../../util/lang"
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import { PluggableList } from "unified"
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export interface Options {
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comments: boolean
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highlight: boolean
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wikilinks: boolean
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callouts: boolean
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mermaid: boolean
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parseTags: boolean
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parseArrows: boolean
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parseBlockReferences: boolean
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enableInHtmlEmbed: boolean
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enableYouTubeEmbed: boolean
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enableVideoEmbed: boolean
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enableCheckbox: boolean
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}
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const defaultOptions: Options = {
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comments: true,
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highlight: true,
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wikilinks: true,
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callouts: true,
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mermaid: true,
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parseTags: true,
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parseArrows: true,
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parseBlockReferences: true,
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enableInHtmlEmbed: false,
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enableYouTubeEmbed: true,
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enableVideoEmbed: true,
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enableCheckbox: false,
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}
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const calloutMapping = {
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note: "note",
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abstract: "abstract",
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summary: "abstract",
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tldr: "abstract",
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info: "info",
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todo: "todo",
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tip: "tip",
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hint: "tip",
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important: "tip",
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success: "success",
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check: "success",
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done: "success",
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question: "question",
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help: "question",
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faq: "question",
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warning: "warning",
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attention: "warning",
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caution: "warning",
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failure: "failure",
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missing: "failure",
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fail: "failure",
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danger: "danger",
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error: "danger",
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bug: "bug",
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example: "example",
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quote: "quote",
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cite: "quote",
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} as const
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const arrowMapping: Record<string, string> = {
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"->": "→",
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"-->": "⇒",
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"=>": "⇒",
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"==>": "⇒",
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"<-": "←",
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"<--": "⇐",
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"<=": "⇐",
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"<==": "⇐",
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}
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function canonicalizeCallout(calloutName: string): keyof typeof calloutMapping {
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const normalizedCallout = calloutName.toLowerCase() as keyof typeof calloutMapping
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// if callout is not recognized, make it a custom one
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return calloutMapping[normalizedCallout] ?? calloutName
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}
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export const externalLinkRegex = /^https?:\/\//i
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export const arrowRegex = new RegExp(/(-{1,2}>|={1,2}>|<-{1,2}|<={1,2})/, "g")
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// !? -> optional embedding
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// \[\[ -> open brace
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// ([^\[\]\|\#]+) -> one or more non-special characters ([,],|, or #) (name)
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// (#[^\[\]\|\#]+)? -> # then one or more non-special characters (heading link)
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// (\\?\|[^\[\]\#]+)? -> optional escape \ then | then one or more non-special characters (alias)
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export const wikilinkRegex = new RegExp(
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/!?\[\[([^\[\]\|\#\\]+)?(#+[^\[\]\|\#\\]+)?(\\?\|[^\[\]\#]+)?\]\]/,
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"g",
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)
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// ^\|([^\n])+\|\n(\|) -> matches the header row
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// ( ?:?-{3,}:? ?\|)+ -> matches the header row separator
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// (\|([^\n])+\|\n)+ -> matches the body rows
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export const tableRegex = new RegExp(
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/^\|([^\n])+\|\n(\|)( ?:?-{3,}:? ?\|)+\n(\|([^\n])+\|\n?)+/,
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"gm",
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)
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// matches any wikilink, only used for escaping wikilinks inside tables
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export const tableWikilinkRegex = new RegExp(/(!?\[\[[^\]]*?\]\])/, "g")
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const highlightRegex = new RegExp(/==([^=]+)==/, "g")
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const commentRegex = new RegExp(/%%[\s\S]*?%%/, "g")
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// from https://github.com/escwxyz/remark-obsidian-callout/blob/main/src/index.ts
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const calloutRegex = new RegExp(/^\[\!(\w+)\|?(.+?)?\]([+-]?)/)
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const calloutLineRegex = new RegExp(/^> *\[\!\w+\|?.*?\][+-]?.*$/, "gm")
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// (?:^| ) -> non-capturing group, tag should start be separated by a space or be the start of the line
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// #(...) -> capturing group, tag itself must start with #
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// (?:[-_\p{L}\d\p{Z}])+ -> non-capturing group, non-empty string of (Unicode-aware) alpha-numeric characters and symbols, hyphens and/or underscores
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// (?:\/[-_\p{L}\d\p{Z}]+)*) -> non-capturing group, matches an arbitrary number of tag strings separated by "/"
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const tagRegex = new RegExp(
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/(?:^| )#((?:[-_\p{L}\p{Emoji}\p{M}\d])+(?:\/[-_\p{L}\p{Emoji}\p{M}\d]+)*)/,
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"gu",
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)
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const blockReferenceRegex = new RegExp(/\^([-_A-Za-z0-9]+)$/, "g")
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const ytLinkRegex = /^.*(youtu.be\/|v\/|u\/\w\/|embed\/|watch\?v=|\&v=)([^#\&\?]*).*/
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const ytPlaylistLinkRegex = /[?&]list=([^#?&]*)/
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const videoExtensionRegex = new RegExp(/\.(mp4|webm|ogg|avi|mov|flv|wmv|mkv|mpg|mpeg|3gp|m4v)$/)
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const wikilinkImageEmbedRegex = new RegExp(
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/^(?<alt>(?!^\d*x?\d*$).*?)?(\|?\s*?(?<width>\d+)(x(?<height>\d+))?)?$/,
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)
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export const ObsidianFlavoredMarkdown: QuartzTransformerPlugin<Partial<Options> | undefined> = (
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userOpts,
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) => {
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const opts = { ...defaultOptions, ...userOpts }
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const mdastToHtml = (ast: PhrasingContent | Paragraph) => {
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const hast = toHast(ast, { allowDangerousHtml: true })!
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return toHtml(hast, { allowDangerousHtml: true })
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}
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return {
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name: "ObsidianFlavoredMarkdown",
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textTransform(_ctx, src) {
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// do comments at text level
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if (opts.comments) {
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if (src instanceof Buffer) {
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src = src.toString()
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}
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src = src.replace(commentRegex, "")
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}
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// pre-transform blockquotes
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if (opts.callouts) {
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if (src instanceof Buffer) {
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src = src.toString()
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}
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src = src.replace(calloutLineRegex, (value) => {
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// force newline after title of callout
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return value + "\n> "
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})
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}
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// pre-transform wikilinks (fix anchors to things that may contain illegal syntax e.g. codeblocks, latex)
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if (opts.wikilinks) {
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if (src instanceof Buffer) {
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src = src.toString()
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}
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// replace all wikilinks inside a table first
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src = src.replace(tableRegex, (value) => {
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// escape all aliases and headers in wikilinks inside a table
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return value.replace(tableWikilinkRegex, (value, ...capture) => {
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const [raw]: (string | undefined)[] = capture
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let escaped = raw ?? ""
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escaped = escaped.replace("#", "\\#")
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// escape pipe characters if they are not already escaped
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escaped = escaped.replace(/((^|[^\\])(\\\\)*)\|/g, "$1\\|")
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return escaped
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})
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})
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// replace all other wikilinks
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src = src.replace(wikilinkRegex, (value, ...capture) => {
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const [rawFp, rawHeader, rawAlias]: (string | undefined)[] = capture
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const fp = rawFp ?? ""
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const anchor = rawHeader?.trim().replace(/^#+/, "")
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const blockRef = Boolean(anchor?.startsWith("^")) ? "^" : ""
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const displayAnchor = anchor ? `#${blockRef}${slugAnchor(anchor)}` : ""
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const displayAlias = rawAlias ?? rawHeader?.replace("#", "|") ?? ""
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const embedDisplay = value.startsWith("!") ? "!" : ""
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if (rawFp?.match(externalLinkRegex)) {
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return `${embedDisplay}[${displayAlias.replace(/^\|/, "")}](${rawFp})`
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}
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return `${embedDisplay}[[${fp}${displayAnchor}${displayAlias}]]`
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})
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}
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return src
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},
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markdownPlugins(_ctx) {
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const plugins: PluggableList = []
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// regex replacements
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plugins.push(() => {
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return (tree: Root, file) => {
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const replacements: [RegExp, string | ReplaceFunction][] = []
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const base = pathToRoot(file.data.slug!)
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if (opts.wikilinks) {
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replacements.push([
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wikilinkRegex,
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(value: string, ...capture: string[]) => {
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let [rawFp, rawHeader, rawAlias] = capture
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const fp = rawFp?.trim() ?? ""
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const anchor = rawHeader?.trim() ?? ""
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const alias = rawAlias?.slice(1).trim()
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// embed cases
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if (value.startsWith("!")) {
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const ext: string = path.extname(fp).toLowerCase()
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const url = slugifyFilePath(fp as FilePath)
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if ([".png", ".jpg", ".jpeg", ".gif", ".bmp", ".svg", ".webp"].includes(ext)) {
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const match = wikilinkImageEmbedRegex.exec(alias ?? "")
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const alt = match?.groups?.alt ?? ""
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const width = match?.groups?.width ?? "auto"
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const height = match?.groups?.height ?? "auto"
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return {
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type: "image",
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url,
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data: {
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hProperties: {
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width,
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height,
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alt,
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},
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},
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}
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} else if ([".mp4", ".webm", ".ogv", ".mov", ".mkv"].includes(ext)) {
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return {
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type: "html",
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value: `<video src="${url}" controls></video>`,
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}
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} else if (
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[".mp3", ".webm", ".wav", ".m4a", ".ogg", ".3gp", ".flac"].includes(ext)
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) {
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return {
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type: "html",
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value: `<audio src="${url}" controls></audio>`,
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}
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} else if ([".pdf"].includes(ext)) {
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return {
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type: "html",
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value: `<iframe src="${url}"></iframe>`,
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}
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} else {
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const block = anchor
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return {
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type: "html",
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data: { hProperties: { transclude: true } },
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value: `<blockquote class="transclude" data-url="${url}" data-block="${block}"><a href="${
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url + anchor
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}" class="transclude-inner">Transclude of ${url}${block}</a></blockquote>`,
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}
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}
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// otherwise, fall through to regular link
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}
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// internal link
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const url = fp + anchor
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return {
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type: "link",
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url,
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children: [
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{
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type: "text",
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value: alias ?? fp,
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},
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],
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}
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},
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])
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}
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if (opts.highlight) {
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replacements.push([
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highlightRegex,
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(_value: string, ...capture: string[]) => {
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const [inner] = capture
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return {
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type: "html",
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value: `<span class="text-highlight">${inner}</span>`,
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}
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},
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])
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}
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if (opts.parseArrows) {
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replacements.push([
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arrowRegex,
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(value: string, ..._capture: string[]) => {
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const maybeArrow = arrowMapping[value]
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if (maybeArrow === undefined) return SKIP
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return {
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type: "html",
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value: `<span>${maybeArrow}</span>`,
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}
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},
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])
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}
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if (opts.parseTags) {
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replacements.push([
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tagRegex,
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(_value: string, tag: string) => {
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// Check if the tag only includes numbers
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if (/^\d+$/.test(tag)) {
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return false
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}
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tag = slugTag(tag)
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if (file.data.frontmatter) {
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const noteTags = file.data.frontmatter.tags ?? []
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file.data.frontmatter.tags = [...new Set([...noteTags, tag])]
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}
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return {
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type: "link",
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url: base + `/tags/${tag}`,
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data: {
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hProperties: {
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className: ["tag-link"],
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},
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},
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children: [
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{
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type: "text",
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value: tag,
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},
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],
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}
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},
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])
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}
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if (opts.enableInHtmlEmbed) {
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visit(tree, "html", (node: Html) => {
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for (const [regex, replace] of replacements) {
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if (typeof replace === "string") {
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node.value = node.value.replace(regex, replace)
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} else {
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node.value = node.value.replace(regex, (substring: string, ...args) => {
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const replaceValue = replace(substring, ...args)
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if (typeof replaceValue === "string") {
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return replaceValue
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} else if (Array.isArray(replaceValue)) {
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return replaceValue.map(mdastToHtml).join("")
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} else if (typeof replaceValue === "object" && replaceValue !== null) {
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return mdastToHtml(replaceValue)
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} else {
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return substring
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}
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})
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}
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}
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})
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}
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mdastFindReplace(tree, replacements)
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}
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})
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if (opts.enableVideoEmbed) {
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plugins.push(() => {
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return (tree: Root, _file) => {
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visit(tree, "image", (node, index, parent) => {
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if (parent && index != undefined && videoExtensionRegex.test(node.url)) {
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const newNode: Html = {
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type: "html",
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value: `<video controls src="${node.url}"></video>`,
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}
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parent.children.splice(index, 1, newNode)
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return SKIP
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}
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})
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}
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})
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}
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if (opts.callouts) {
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plugins.push(() => {
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return (tree: Root, _file) => {
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visit(tree, "blockquote", (node) => {
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if (node.children.length === 0) {
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return
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}
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// find first line
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const firstChild = node.children[0]
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if (firstChild.type !== "paragraph" || firstChild.children[0]?.type !== "text") {
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return
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}
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const text = firstChild.children[0].value
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const restOfTitle = firstChild.children.slice(1)
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const [firstLine, ...remainingLines] = text.split("\n")
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const remainingText = remainingLines.join("\n")
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const match = firstLine.match(calloutRegex)
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if (match && match.input) {
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const [calloutDirective, typeString, calloutMetaData, collapseChar] = match
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const calloutType = canonicalizeCallout(typeString.toLowerCase())
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const collapse = collapseChar === "+" || collapseChar === "-"
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const defaultState = collapseChar === "-" ? "collapsed" : "expanded"
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const titleContent = match.input.slice(calloutDirective.length).trim()
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const useDefaultTitle = titleContent === "" && restOfTitle.length === 0
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const titleNode: Paragraph = {
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type: "paragraph",
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children: [
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{
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type: "text",
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value: useDefaultTitle ? capitalize(typeString) : titleContent + " ",
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},
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...restOfTitle,
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],
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}
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const title = mdastToHtml(titleNode)
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const toggleIcon = `<div class="fold-callout-icon"></div>`
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const titleHtml: Html = {
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type: "html",
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value: `<div
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class="callout-title"
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>
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<div class="callout-icon"></div>
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<div class="callout-title-inner">${title}</div>
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${collapse ? toggleIcon : ""}
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</div>`,
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}
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const blockquoteContent: (BlockContent | DefinitionContent)[] = [titleHtml]
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if (remainingText.length > 0) {
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blockquoteContent.push({
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type: "paragraph",
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children: [
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{
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type: "text",
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value: remainingText,
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},
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],
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})
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}
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// replace first line of blockquote with title and rest of the paragraph text
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node.children.splice(0, 1, ...blockquoteContent)
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const classNames = ["callout", calloutType]
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if (collapse) {
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classNames.push("is-collapsible")
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}
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if (defaultState === "collapsed") {
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classNames.push("is-collapsed")
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}
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// add properties to base blockquote
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node.data = {
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hProperties: {
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...(node.data?.hProperties ?? {}),
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className: classNames.join(" "),
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"data-callout": calloutType,
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"data-callout-fold": collapse,
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"data-callout-metadata": calloutMetaData,
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},
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}
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}
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})
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}
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})
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}
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if (opts.mermaid) {
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plugins.push(() => {
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return (tree: Root, _file) => {
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visit(tree, "code", (node: Code) => {
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if (node.lang === "mermaid") {
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node.data = {
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hProperties: {
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className: ["mermaid"],
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},
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}
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}
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})
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}
|
|
})
|
|
}
|
|
|
|
return plugins
|
|
},
|
|
htmlPlugins() {
|
|
const plugins: PluggableList = [rehypeRaw]
|
|
|
|
if (opts.parseBlockReferences) {
|
|
plugins.push(() => {
|
|
const inlineTagTypes = new Set(["p", "li"])
|
|
const blockTagTypes = new Set(["blockquote"])
|
|
return (tree: HtmlRoot, file) => {
|
|
file.data.blocks = {}
|
|
|
|
visit(tree, "element", (node, index, parent) => {
|
|
if (blockTagTypes.has(node.tagName)) {
|
|
const nextChild = parent?.children.at(index! + 2) as Element
|
|
if (nextChild && nextChild.tagName === "p") {
|
|
const text = nextChild.children.at(0) as Literal
|
|
if (text && text.value && text.type === "text") {
|
|
const matches = text.value.match(blockReferenceRegex)
|
|
if (matches && matches.length >= 1) {
|
|
parent!.children.splice(index! + 2, 1)
|
|
const block = matches[0].slice(1)
|
|
|
|
if (!Object.keys(file.data.blocks!).includes(block)) {
|
|
node.properties = {
|
|
...node.properties,
|
|
id: block,
|
|
}
|
|
file.data.blocks![block] = node
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} else if (inlineTagTypes.has(node.tagName)) {
|
|
const last = node.children.at(-1) as Literal
|
|
if (last && last.value && typeof last.value === "string") {
|
|
const matches = last.value.match(blockReferenceRegex)
|
|
if (matches && matches.length >= 1) {
|
|
last.value = last.value.slice(0, -matches[0].length)
|
|
const block = matches[0].slice(1)
|
|
|
|
if (last.value === "") {
|
|
// this is an inline block ref but the actual block
|
|
// is the previous element above it
|
|
let idx = (index ?? 1) - 1
|
|
while (idx >= 0) {
|
|
const element = parent?.children.at(idx)
|
|
if (!element) break
|
|
if (element.type !== "element") {
|
|
idx -= 1
|
|
} else {
|
|
if (!Object.keys(file.data.blocks!).includes(block)) {
|
|
element.properties = {
|
|
...element.properties,
|
|
id: block,
|
|
}
|
|
file.data.blocks![block] = element
|
|
}
|
|
return
|
|
}
|
|
}
|
|
} else {
|
|
// normal paragraph transclude
|
|
if (!Object.keys(file.data.blocks!).includes(block)) {
|
|
node.properties = {
|
|
...node.properties,
|
|
id: block,
|
|
}
|
|
file.data.blocks![block] = node
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
})
|
|
|
|
file.data.htmlAst = tree
|
|
}
|
|
})
|
|
}
|
|
|
|
if (opts.enableYouTubeEmbed) {
|
|
plugins.push(() => {
|
|
return (tree: HtmlRoot) => {
|
|
visit(tree, "element", (node) => {
|
|
if (node.tagName === "img" && typeof node.properties.src === "string") {
|
|
const match = node.properties.src.match(ytLinkRegex)
|
|
const videoId = match && match[2].length == 11 ? match[2] : null
|
|
const playlistId = node.properties.src.match(ytPlaylistLinkRegex)?.[1]
|
|
if (videoId) {
|
|
// YouTube video (with optional playlist)
|
|
node.tagName = "iframe"
|
|
node.properties = {
|
|
class: "external-embed",
|
|
allow: "fullscreen",
|
|
frameborder: 0,
|
|
width: "600px",
|
|
height: "350px",
|
|
src: playlistId
|
|
? `https://www.youtube.com/embed/${videoId}?list=${playlistId}`
|
|
: `https://www.youtube.com/embed/${videoId}`,
|
|
}
|
|
} else if (playlistId) {
|
|
// YouTube playlist only.
|
|
node.tagName = "iframe"
|
|
node.properties = {
|
|
class: "external-embed",
|
|
allow: "fullscreen",
|
|
frameborder: 0,
|
|
width: "600px",
|
|
height: "350px",
|
|
src: `https://www.youtube.com/embed/videoseries?list=${playlistId}`,
|
|
}
|
|
}
|
|
}
|
|
})
|
|
}
|
|
})
|
|
}
|
|
|
|
if (opts.enableCheckbox) {
|
|
plugins.push(() => {
|
|
return (tree: HtmlRoot, _file) => {
|
|
visit(tree, "element", (node) => {
|
|
if (node.tagName === "input" && node.properties.type === "checkbox") {
|
|
const isChecked = node.properties?.checked ?? false
|
|
node.properties = {
|
|
type: "checkbox",
|
|
disabled: false,
|
|
checked: isChecked,
|
|
class: "checkbox-toggle",
|
|
}
|
|
}
|
|
})
|
|
}
|
|
})
|
|
}
|
|
|
|
return plugins
|
|
},
|
|
externalResources() {
|
|
const js: JSResource[] = []
|
|
|
|
if (opts.enableCheckbox) {
|
|
js.push({
|
|
script: checkboxScript,
|
|
loadTime: "afterDOMReady",
|
|
contentType: "inline",
|
|
})
|
|
}
|
|
|
|
if (opts.callouts) {
|
|
js.push({
|
|
script: calloutScript,
|
|
loadTime: "afterDOMReady",
|
|
contentType: "inline",
|
|
})
|
|
}
|
|
|
|
if (opts.mermaid) {
|
|
js.push({
|
|
script: `
|
|
let mermaidImport = undefined
|
|
document.addEventListener('nav', async () => {
|
|
if (document.querySelector("code.mermaid")) {
|
|
mermaidImport ||= await import('https://cdnjs.cloudflare.com/ajax/libs/mermaid/10.7.0/mermaid.esm.min.mjs')
|
|
const mermaid = mermaidImport.default
|
|
const darkMode = document.documentElement.getAttribute('saved-theme') === 'dark'
|
|
mermaid.initialize({
|
|
startOnLoad: false,
|
|
securityLevel: 'loose',
|
|
theme: darkMode ? 'dark' : 'default'
|
|
})
|
|
|
|
await mermaid.run({
|
|
querySelector: '.mermaid'
|
|
})
|
|
}
|
|
});
|
|
`,
|
|
loadTime: "afterDOMReady",
|
|
moduleType: "module",
|
|
contentType: "inline",
|
|
})
|
|
}
|
|
|
|
return { js }
|
|
},
|
|
}
|
|
}
|
|
|
|
declare module "vfile" {
|
|
interface DataMap {
|
|
blocks: Record<string, Element>
|
|
htmlAst: HtmlRoot
|
|
}
|
|
}
|