Yes, one of XML's killer feature is that it can model rich text documents as much as ASTs. There's a reason why HTML never ever became JSON-ML, or why LibreOffi

Yes, one of XML's killer feature is that it can model rich text documents as much as ASTs. There's a reason why HTML never ever became JSON-ML, or why LibreOffice uses XML rather than JSON to save files. In a way, XML can be seen as a generalization of simpler formats such as markdown (for text) and JSON (for structured data). Yes, I'm oversymplifying it.