535 lines
22 KiB
TypeScript
535 lines
22 KiB
TypeScript
import { PluggableList } from "unified"
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import { QuartzTransformerPlugin } from "../types"
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import { Root, HTML, BlockContent, DefinitionContent, Code, Paragraph } from "mdast"
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import { Element, Literal, Root as HtmlRoot } from "hast"
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import { Replace, 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 { 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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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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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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parseBlockReferences: boolean
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enableInHtmlEmbed: 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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parseBlockReferences: true,
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enableInHtmlEmbed: false,
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}
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const icons = {
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infoIcon: `<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="10"></circle><line x1="12" y1="16" x2="12" y2="12"></line><line x1="12" y1="8" x2="12.01" y2="8"></line></svg>`,
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pencilIcon: `<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><line x1="18" y1="2" x2="22" y2="6"></line><path d="M7.5 20.5 19 9l-4-4L3.5 16.5 2 22z"></path></svg>`,
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clipboardListIcon: `<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><rect x="8" y="2" width="8" height="4" rx="1" ry="1"></rect><path d="M16 4h2a2 2 0 0 1 2 2v14a2 2 0 0 1-2 2H6a2 2 0 0 1-2-2V6a2 2 0 0 1 2-2h2"></path><path d="M12 11h4"></path><path d="M12 16h4"></path><path d="M8 11h.01"></path><path d="M8 16h.01"></path></svg>`,
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checkCircleIcon: `<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M12 22c5.523 0 10-4.477 10-10S17.523 2 12 2 2 6.477 2 12s4.477 10 10 10z"></path><path d="m9 12 2 2 4-4"></path></svg>`,
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flameIcon: `<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M8.5 14.5A2.5 2.5 0 0 0 11 12c0-1.38-.5-2-1-3-1.072-2.143-.224-4.054 2-6 .5 2.5 2 4.9 4 6.5 2 1.6 3 3.5 3 5.5a7 7 0 1 1-14 0c0-1.153.433-2.294 1-3a2.5 2.5 0 0 0 2.5 2.5z"></path></svg>`,
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checkIcon: `<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="20 6 9 17 4 12"></polyline></svg>`,
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helpCircleIcon: `<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="10"></circle><path d="M9.09 9a3 3 0 0 1 5.83 1c0 2-3 3-3 3"></path><line x1="12" y1="17" x2="12.01" y2="17"></line></svg>`,
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alertTriangleIcon: `<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="m21.73 18-8-14a2 2 0 0 0-3.48 0l-8 14A2 2 0 0 0 4 21h16a2 2 0 0 0 1.73-3Z"></path><line x1="12" y1="9" x2="12" y2="13"></line><line x1="12" y1="17" x2="12.01" y2="17"></line></svg>`,
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xIcon: `<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><line x1="18" y1="6" x2="6" y2="18"></line><line x1="6" y1="6" x2="18" y2="18"></line></svg>`,
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zapIcon: `<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polygon points="13 2 3 14 12 14 11 22 21 10 12 10 13 2"></polygon></svg>`,
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bugIcon: `<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><rect width="8" height="14" x="8" y="6" rx="4"></rect><path d="m19 7-3 2"></path><path d="m5 7 3 2"></path><path d="m19 19-3-2"></path><path d="m5 19 3-2"></path><path d="M20 13h-4"></path><path d="M4 13h4"></path><path d="m10 4 1 2"></path><path d="m14 4-1 2"></path></svg>`,
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listIcon: `<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><line x1="8" y1="6" x2="21" y2="6"></line><line x1="8" y1="12" x2="21" y2="12"></line><line x1="8" y1="18" x2="21" y2="18"></line><line x1="3" y1="6" x2="3.01" y2="6"></line><line x1="3" y1="12" x2="3.01" y2="12"></line><line x1="3" y1="18" x2="3.01" y2="18"></line></svg>`,
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quoteIcon: `<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M3 21c3 0 7-1 7-8V5c0-1.25-.756-2.017-2-2H4c-1.25 0-2 .75-2 1.972V11c0 1.25.75 2 2 2 1 0 1 0 1 1v1c0 1-1 2-2 2s-1 .008-1 1.031V20c0 1 0 1 1 1z"></path><path d="M15 21c3 0 7-1 7-8V5c0-1.25-.757-2.017-2-2h-4c-1.25 0-2 .75-2 1.972V11c0 1.25.75 2 2 2h.75c0 2.25.25 4-2.75 4v3c0 1 0 1 1 1z"></path></svg>`,
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}
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const callouts = {
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note: icons.pencilIcon,
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abstract: icons.clipboardListIcon,
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info: icons.infoIcon,
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todo: icons.checkCircleIcon,
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tip: icons.flameIcon,
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success: icons.checkIcon,
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question: icons.helpCircleIcon,
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warning: icons.alertTriangleIcon,
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failure: icons.xIcon,
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danger: icons.zapIcon,
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bug: icons.bugIcon,
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example: icons.listIcon,
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quote: icons.quoteIcon,
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}
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const calloutMapping: Record<string, keyof typeof callouts> = {
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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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}
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function canonicalizeCallout(calloutName: string): keyof typeof callouts {
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let callout = calloutName.toLowerCase() as keyof typeof calloutMapping
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return calloutMapping[callout] ?? "note"
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}
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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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// (|[^\[\]\|\#]+)? -> | 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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const highlightRegex = new RegExp(/==([^=]+)==/, "g")
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const commentRegex = new RegExp(/%%(.+)%%/, "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(/^> *\[\!\w+\][+-]?.*$/, "gm")
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// (?:^| ) -> non-capturing group, tag should start be separated by a space or be the start of the line
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// #(...) -> capturing group, tag itself must start with #
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// (?:[-_\p{L}])+ -> non-capturing group, non-empty string of (Unicode-aware) alpha-numeric characters, hyphens and/or underscores
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// (?:\/[-_\p{L}]+)*) -> non-capturing group, matches an arbitrary number of tag strings separated by "/"
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const tagRegex = new RegExp(/(?:^| )#((?:[-_\p{L}\d])+(?:\/[-_\p{L}\d]+)*)/, "gu")
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const blockReferenceRegex = new RegExp(/\^([A-Za-z0-9]+)$/, "g")
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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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const findAndReplace = opts.enableInHtmlEmbed
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? (tree: Root, regex: RegExp, replace?: Replace | null | undefined) => {
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if (replace) {
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visit(tree, "html", (node: HTML) => {
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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.replaceAll(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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mdastFindReplace(tree, regex, replace)
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}
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: mdastFindReplace
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return {
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name: "ObsidianFlavoredMarkdown",
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textTransform(_ctx, src) {
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// pre-transform blockquotes
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if (opts.callouts) {
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src = src.toString()
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src = src.replaceAll(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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src = src.toString()
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src = src.replaceAll(wikilinkRegex, (value, ...capture) => {
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const [rawFp, rawHeader, rawAlias] = capture
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const fp = rawFp ?? ""
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const anchor = rawHeader?.trim().replace(/^#+/, "")
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const displayAnchor = anchor ? `#${slugAnchor(anchor)}` : ""
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const displayAlias = rawAlias ?? anchor ?? ""
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const embedDisplay = value.startsWith("!") ? "!" : ""
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return `${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() {
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const plugins: PluggableList = []
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if (opts.wikilinks) {
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plugins.push(() => {
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return (tree: Root, _file) => {
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findAndReplace(tree, wikilinkRegex, (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"].includes(ext)) {
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const dims = alias ?? ""
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let [width, height] = dims.split("x", 2)
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width ||= "auto"
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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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},
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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 if (ext === "") {
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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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}
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if (opts.highlight) {
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plugins.push(() => {
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return (tree: Root, _file) => {
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findAndReplace(tree, highlightRegex, (_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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}
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if (opts.comments) {
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plugins.push(() => {
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return (tree: Root, _file) => {
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findAndReplace(tree, commentRegex, (_value: string, ..._capture: string[]) => {
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return {
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type: "text",
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value: "",
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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 restChildren = 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, collapseChar] = match
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const calloutType = canonicalizeCallout(
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typeString.toLowerCase() as keyof typeof calloutMapping,
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)
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const collapse = collapseChar === "+" || collapseChar === "-"
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const defaultState = collapseChar === "-" ? "collapsed" : "expanded"
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const titleContent =
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match.input.slice(calloutDirective.length).trim() || capitalize(calloutType)
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const titleNode: Paragraph = {
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type: "paragraph",
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children: [{ type: "text", value: titleContent + " " }, ...restChildren],
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}
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const title = mdastToHtml(titleNode)
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const toggleIcon = `<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="fold">
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<polyline points="6 9 12 15 18 9"></polyline>
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</svg>`
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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">${callouts[calloutType]}</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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// 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: `callout ${collapse ? "is-collapsible" : ""} ${
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defaultState === "collapsed" ? "is-collapsed" : ""
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}`,
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"data-callout": calloutType,
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"data-callout-fold": collapse,
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},
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}
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}
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})
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}
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})
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}
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if (opts.mermaid) {
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plugins.push(() => {
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return (tree: Root, _file) => {
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visit(tree, "code", (node: Code) => {
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if (node.lang === "mermaid") {
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node.data = {
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hProperties: {
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className: ["mermaid"],
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},
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}
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}
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})
|
|
}
|
|
})
|
|
}
|
|
|
|
if (opts.parseTags) {
|
|
plugins.push(() => {
|
|
return (tree: Root, file) => {
|
|
const base = pathToRoot(file.data.slug!)
|
|
findAndReplace(tree, tagRegex, (_value: string, tag: string) => {
|
|
// Check if the tag only includes numbers
|
|
if (/^\d+$/.test(tag)) {
|
|
return false
|
|
}
|
|
tag = slugTag(tag)
|
|
if (file.data.frontmatter && !file.data.frontmatter.tags.includes(tag)) {
|
|
file.data.frontmatter.tags.push(tag)
|
|
}
|
|
|
|
return {
|
|
type: "link",
|
|
url: base + `/tags/${tag}`,
|
|
data: {
|
|
hProperties: {
|
|
className: ["tag-link"],
|
|
},
|
|
},
|
|
children: [
|
|
{
|
|
type: "text",
|
|
value: `#${tag}`,
|
|
},
|
|
],
|
|
}
|
|
})
|
|
}
|
|
})
|
|
}
|
|
return plugins
|
|
},
|
|
htmlPlugins() {
|
|
const plugins = [rehypeRaw]
|
|
|
|
if (opts.parseBlockReferences) {
|
|
plugins.push(() => {
|
|
const inlineTagTypes = new Set(["p", "li"])
|
|
const blockTagTypes = new Set(["blockquote"])
|
|
return (tree, 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 (!Object.keys(file.data.blocks!).includes(block)) {
|
|
node.properties = {
|
|
...node.properties,
|
|
id: block,
|
|
}
|
|
file.data.blocks![block] = node
|
|
}
|
|
}
|
|
}
|
|
}
|
|
})
|
|
|
|
file.data.htmlAst = tree
|
|
}
|
|
})
|
|
}
|
|
|
|
return plugins
|
|
},
|
|
externalResources() {
|
|
const js: JSResource[] = []
|
|
|
|
if (opts.callouts) {
|
|
js.push({
|
|
script: calloutScript,
|
|
loadTime: "afterDOMReady",
|
|
contentType: "inline",
|
|
})
|
|
}
|
|
|
|
if (opts.mermaid) {
|
|
js.push({
|
|
script: `
|
|
import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid/dist/mermaid.esm.min.mjs';
|
|
const darkMode = document.documentElement.getAttribute('saved-theme') === 'dark'
|
|
mermaid.initialize({
|
|
startOnLoad: false,
|
|
securityLevel: 'loose',
|
|
theme: darkMode ? 'dark' : 'default'
|
|
});
|
|
document.addEventListener('nav', async () => {
|
|
await mermaid.run({
|
|
querySelector: '.mermaid'
|
|
})
|
|
});
|
|
`,
|
|
loadTime: "afterDOMReady",
|
|
moduleType: "module",
|
|
contentType: "inline",
|
|
})
|
|
}
|
|
|
|
return { js }
|
|
},
|
|
}
|
|
}
|
|
|
|
declare module "vfile" {
|
|
interface DataMap {
|
|
blocks: Record<string, Element>
|
|
htmlAst: HtmlRoot
|
|
}
|
|
}
|