Feat: syntax highlighting in markdown code blocks

[LoicRiegel]

Feature: add syntax highlighting inside nushell codeblocks in markdown files

Issue #192

Adds syntax highlighting for nushell code blocks when editing markdown files inside VS code

The code is very inspired from this repo.

⚠️ The syntax highlighting still is not available when opening the Preview of the md files in VS code. VS code uses something else (highlight.js) so that will be done and somewhere else I guess.

How to test

1. Clone the branch
2. Start debugging (F5) in VS Code
3. Open a md files, create a nushell code block and start typing nushell code

Result

[fdncred]

I don't understand. What's the point of this PR if it doesn't highlight the text in markdown?

[LoicRiegel]

It does while editing markdown files (left part of the screenshot). Currently we don't have syntax highlighting injected here, only while editing .nu files.

What still does not work is the right of the screenshot, the preview mode.

[LoicRiegel]

Yes, it will require some more work to have syntax highlighting in preview mode: see on discord.

I think this PR is independent and can be merged. Also I don't know if you saw it but I opened 2 more PRs in this repo :)

[fdncred]

ok, let's give it a try. thanks!

[LoicRiegel]

You're welcome, thx for merging that!

In the meantime, I started to work on a nushell's highlightjs plugin: it's far from ready yet, but you can have a look if you want: https://github.com/LoicRiegel/highlightjs-nushell

But yeah this PR was independent, and I think it's already nice to have the syntax highlighting while editing .nu files.

How does the release process work here? Is there some more testing involved before publishing? Also when do you decide to do a release? I see that the last version was published a long time ago: sept 2024, but maybe there hasn't been much changes since then

[fdncred]

How does the release process work here?

it's a pain. i do the release. it's kind of documented, or it was somewhere in this repo.

Is there some more testing involved before publishing?

nope.

Also when do you decide to do a release?

whenever there's enough prs or the nushell language has changed enough