import matter from "gray-matter" import remarkFrontmatter from 'remark-frontmatter' import { QuartzTransformerPlugin } from "../types" export interface Options { language: 'yaml' | 'toml', delims: string | string[] } const defaultOptions: Options = { language: 'yaml', delims: '---' } export const FrontMatter: QuartzTransformerPlugin | undefined> = (userOpts) => { const opts = { ...defaultOptions, ...userOpts } return { name: "FrontMatter", markdownPlugins() { return [ remarkFrontmatter, () => { return (_, file) => { const { data } = matter(file.value, opts) // fill in frontmatter file.data.frontmatter = { title: file.stem ?? "Untitled", tags: [], ...data } } } ] }, } } declare module 'vfile' { interface DataMap { frontmatter: { [key: string]: any } & { title: string tags: string[] } } }