feat: resolve block references in obsidian markdown
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@ -1,6 +1,7 @@
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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 } 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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@ -21,6 +22,7 @@ export interface Options {
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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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@ -31,6 +33,7 @@ const defaultOptions: Options = {
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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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@ -121,6 +124,7 @@ const calloutLineRegex = new RegExp(/^> *\[\!\w+\][+-]?.*$/, "gm")
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// (?:[-_\p{L}])+ -> non-capturing group, non-empty string of (Unicode-aware) alpha-numeric characters, hyphens and/or underscores
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// (?:\/[-_\p{L}]+)*) -> non-capturing group, matches an arbitrary number of tag strings separated by "/"
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const tagRegex = new RegExp(/(?:^| )#((?:[-_\p{L}\d])+(?:\/[-_\p{L}\d]+)*)/, "gu")
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const blockReferenceRegex = new RegExp(/\^([A-Za-z0-9]+)$/, "g")
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export const ObsidianFlavoredMarkdown: QuartzTransformerPlugin<Partial<Options> | undefined> = (
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userOpts,
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@ -133,29 +137,29 @@ export const ObsidianFlavoredMarkdown: QuartzTransformerPlugin<Partial<Options>
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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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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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@ -353,9 +357,8 @@ export const ObsidianFlavoredMarkdown: QuartzTransformerPlugin<Partial<Options>
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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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className: `callout ${collapse ? "is-collapsible" : ""} ${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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@ -411,11 +414,38 @@ export const ObsidianFlavoredMarkdown: QuartzTransformerPlugin<Partial<Options>
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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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const plugins = [rehypeRaw]
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if (opts.parseBlockReferences) {
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plugins.push(() => {
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return (tree, file) => {
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file.data.blocks = {}
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const validTagTypes = new Set(["blockquote", "p", "li"])
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visit(tree, "element", (node, _index, _parent) => {
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if (validTagTypes.has(node.tagName)) {
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const last = node.children.at(-1) as Literal
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if (last.value && typeof last.value === 'string') {
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const matches = last.value.match(blockReferenceRegex)
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if (matches && matches.length >= 1) {
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last.value = last.value.slice(0, -matches[0].length)
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const block = matches[0].slice(1)
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node.properties = {
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...node.properties,
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id: block
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}
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file.data.blocks![block] = node
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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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externalResources() {
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const js: JSResource[] = []
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@ -454,3 +484,10 @@ export const ObsidianFlavoredMarkdown: QuartzTransformerPlugin<Partial<Options>
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},
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}
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}
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declare module "vfile" {
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interface DataMap {
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blocks: Record<string, Element>
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}
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}
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