Is there currently a way to get the previous heading of the current paragraph in markdown?

[luyangliuable]

I am attempting to transform markdown into HTML using the marked renderer.

const renderer = new marked.Renderer();
let renderedHtml: string = marked.parse(markdown, { renderer });

I want to adapt the paragraph rendering so that the class names of the sections match the preceding headings. Can this be achieved?

renderer.paragraph = (text) => {
    return `<section>${text}</section>`;
}

I am using marked and dompurify but i heard you could also to create an AST using the following syntax

const file = await unified()
    .use(remarkParse)
    .use(remarkRehype)

My goal is to build a table of content section that indicates when section of the markdown is currently being observed. Without a way to correlate the paragraph to the previous heading would be hard.

[ChristianMurphy]

Yes, see https://www.npmjs.com/package/remark-sectionize and https://www.npmjs.com/package/@hbsnow/rehype-sectionize as an examples of how to do this.