The unified.js ecosystem

Basics

	Markdown	HTML	XML	Natural language	JavaScript
Syntax (`unist`)	`mdast`	`hast`	`xast`	`nlcst`	`esast`
Parser	`remark-parse`	`rehype-parse`	?	?	?
Stringifier	`remark-stringify`	`rehype-stringify`	?	`retext-stringify`	?

Transforming between AST types

From ↓ to →	Markdown	HTML	XML	Natural language	JavaScript
Markdown	–	`remark-rehype`	?	?	?
HTML	`rehype-remark`	—	?	?	?
XML	?	?	—	?	?
Natural language	?	?	?	—	?
JavaScript	?	?	?	?	—

mdast can store hast-specific fields in data.hProperties, data.hName, and data.hChildren.