86 lines
2.5 KiB
TypeScript
86 lines
2.5 KiB
TypeScript
import { PluggableList } from "unified"
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import { QuartzTransformerPlugin } from "../types"
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import { Root } 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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export interface Options {
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highlight: boolean
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wikilinks: 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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}
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export class ObsidianFlavoredMarkdown extends QuartzTransformerPlugin {
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name = "ObsidianFlavoredMarkdown"
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opts: Options
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constructor(opts?: Options) {
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super()
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this.opts = { ...defaultOptions, ...opts }
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}
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markdownPlugins(): PluggableList {
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const plugins: PluggableList = []
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if (this.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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if (value.startsWith("!")) {
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// TODO: handle embeds
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} else {
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const [path, rawHeader, rawAlias] = capture
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const anchor = rawHeader?.trim() ?? ""
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const alias = rawAlias?.slice(1).trim() ?? path
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const url = slugify(path.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
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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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if (this.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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return plugins
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}
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htmlPlugins(): PluggableList {
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return [rehypeRaw]
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}
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}
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