docs: add hast-util-to-babel-ast

[stefanprobst]

this adds hast-util-to-babel-ast by the svgr project to the hast utils list.

they also use svg-parser to parse svgs to hast, but i wasn't sure where this should be added (or how it compares to rehype-parse with scope: 'svg')

[wooorm]

Hmm, unfortunately I believe SVGRs internal hast format doesn’t comply with hast.
Have you tried this out?

[stefanprobst]

i have, but only for simple stuff. i'll investigate! svg-parser does explicitly state that they parse to unified hast: https://github.com/Rich-Harris/svg-parser#svg-parser

[wooorm]

They indeed do say that, but it is incorrect. I let them know here.

It’s a cool idea, but it’s made for them and to be used internally. It won’t work with other hast utilities. So I’d rather not include it here!

[stefanprobst]

ok cool. personally i haven't used svg-parser, but only hast-util-to-babel-ast together with rehype-parse in svg space. do you have any pointers as to what is missing wrt to full hast compatibility in hast-util-to-babel-ast?

[wooorm]

hast is more than settings keys/values from an XML parser on an object. Notably, the way properties and their values are handled (Element). This whole mapping is and these changes are done by hast already. I believe having them in there interfere with hast!

[stefanprobst]

thanks, that's super helpful!