shikijs
Adding language ID to the `class` attribute
👋 Hello. Firstly, thank you for shiki-twoslash. It's amazing.
I'd like to post this as a humble feature request.
Problem
Knowing the language of the code snippet in CSS may be quite useful in a few cases.
AFAIK it's not possible right now with remark-shiki-twoslash without a second pass with a rehype plugin?
Possible Solution
The remark plugin could accept a configuration option to set attributes of the pre element at the root of the code block.
This would later be used in preOpenerFromRenderingOptsWithExtras in shiki-twoslash.
Workaround
I used pnpm patch to quickly add opts.langId to the classList in preOpenerFromRenderingOptsWithExtras.
https://github.com/shikijs/twoslash/blob/eb286da4548f964a800bde1dc6c2051993b2cafc/packages/shiki-twoslash/src/renderers/plain.ts#L12-L18
