291 lines
14 KiB
TypeScript
291 lines
14 KiB
TypeScript
import { PluggableList } from "unified"
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import { QuartzTransformerPlugin } from "../types"
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import { Root, HTML, BlockContent, DefinitionContent, Code } from 'mdast'
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import { findAndReplace } from "mdast-util-find-and-replace"
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import { slugify } from "../../path"
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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 "../../resources"
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export interface Options {
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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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}
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const defaultOptions: Options = {
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highlight: true,
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wikilinks: true,
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callouts: true,
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mermaid: 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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function canonicalizeCallout(calloutName: string): keyof typeof callouts {
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let callout = calloutName.toLowerCase() as keyof typeof calloutMapping
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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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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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return calloutMapping[callout]
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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 capitalize = (s: string): string => {
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return s.substring(0, 1).toUpperCase() + s.substring(1);
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}
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export const ObsidianFlavoredMarkdown: QuartzTransformerPlugin<Partial<Options> | undefined> = (userOpts) => {
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const opts = { ...defaultOptions, ...userOpts }
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return {
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name: "ObsidianFlavoredMarkdown",
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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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// Match wikilinks
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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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const backlinkRegex = new RegExp(/!?\[\[([^\[\]\|\#]+)(#[^\[\]\|\#]+)?(\|[^\[\]\|\#]+)?\]\]/, "g")
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return (tree: Root, _file) => {
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findAndReplace(tree, backlinkRegex, (value: string, ...capture: string[]) => {
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const [fp, rawHeader, rawAlias] = capture
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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 = path.extname(fp).toLowerCase()
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const url = slugify(fp.trim()) + ext
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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, 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="${url}" controls></video>`
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}
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} else if ([".mp3", ".webm", ".wav", ".m4a", ".ogg", ".3gp", ".flac"].includes(ext)) {
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return {
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type: 'html',
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value: `<audio src="${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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}
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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 = slugify(fp.trim() + 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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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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// Match highlights
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const highlightRegex = new RegExp(/==(.+)==/, "g")
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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.callouts) {
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plugins.push(() => {
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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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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 [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 = typeString.toLowerCase() as keyof typeof callouts
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const collapse = collapseChar === "+" || collapseChar === "-"
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const defaultState = collapseChar === "-" ? "collapsed" : "expanded"
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const title = match.input.slice(calloutDirective.length).trim() || capitalize(calloutType)
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const titleNode: 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">${callouts[canonicalizeCallout(calloutType)]}</div>
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<div class="callout-title-inner">${title}</div>
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</div>`
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}
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const blockquoteContent: (BlockContent | DefinitionContent)[] = [titleNode]
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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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type: 'text',
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value: remainingText,
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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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// TODO: add the js to actually support collapsing callout
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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" : ""} ${defaultState === "collapsed" ? "is-collapsed" : ""}`,
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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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})
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}
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})
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}
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return plugins
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},
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htmlPlugins() {
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return [rehypeRaw]
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},
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externalResources() {
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const mermaidScript: JSResource = {
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script: `
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import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid/dist/mermaid.esm.min.mjs';
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mermaid.initialize({ startOnLoad: true });
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`,
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loadTime: 'afterDOMReady',
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moduleType: 'module',
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contentType: 'inline'
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}
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return {
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js: opts.mermaid ? [mermaidScript] : []
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}
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}
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}
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}
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