Auto closing tags trigger on any greater than sign about sites HOT 1 OPEN

I think this is going to require a new CodeMirror Mode for Svelte, which seems worth it anyway. I do not see a way to override the existing add-ons/mode config to handle this logic, but it's very possible I'm just missing something.

It would require overlaying or reusing parts of the existing Handlebars/JSX modes (jsx already handles the auto closing issue when {} is inside an xml open tag) on top of HTML.

In addition, the Vue mode has a good example for handling different languages in script/style/markup blocks so a Svelte specific mode would have other benefits along the lines of supporting preprocessors.

1. Does a Svelte Mode already exist somewhere that I'm missing?
2. If not, would that belong here with the REPL, in the svelte-language repo, or in a separate repo?
3. There's an existing TM grammar in the language repo and a Svelte Prism definition somewhere. Does anybody know if it's worth trying to reuse any of that for CodeMirror specifically? Should we try to keep all the editor integrations together?

from sites.