Could hx-target querySelector syntax become public?

[imbolc]

Could hx-target extended selector syntax (with closest, find, etc) be exposed as part of the public API? It would help with writing extensions, as correctly splitting sub-selectors by commas isn't trivial.

So htmx.splitExtendedSelector("this, closest input") would produce [["this"], ["closest", "input"]].

Another option would be changing the APIs of htmx.find and htmx.findAll methods to accept the extended selector, though I'm not sure it would cover all possible cases of using the splitter.