it also "...does not have all the legacy things like DTD."
Ok sure, but does it have schematron,rng, or some sort of validation? How about transformations? Xpath?
Ok sure, but does it have schematron,rng, or some sort of validation? How about transformations? Xpath?
There's already a transformation library - Mark Template (https://github.com/henry-luo/mark-template) in beta release.
Mark at the moment supports CSS selector. I'm also thinking about a new Mark-specific selector.
Mark is very new. A lot to be done!
FWIW, I would suggest avoiding the (IMO) mistake of using your markup language for the schema.
E.g. like json-schemas where we need a "properties" map, "type": "string" (how many times do I have to type "type"), all sorts of syntactical overhead.
Personally, I think IDLs are much cleaner, as you can design a purpose-specific grammar. More work up front, and you don't get a parser for free, but again personally I think it's more pleasant in the long-run for developers to read and write.
Granted, not sure how that jives with your lisp/etc. way of thinking, but my two cents.
Good luck!