Add launch.json and prettify

[fredrik-bakke]

Summary

• Define the "Literate rzk Markdown" format for .rzk.md files. This is useful, as having a separate "Literate rzk Markdown" format allows users to define settings for .rzk.md files apart from their .md settings.
• Add a .vscode/launch.json file for convenient debugging.
• Some scope changes

[fredrik-bakke]

Ah, shoot! I see you've just pushed this yourself 🤦‍♂️

[fredrik-bakke]

There are some other additions in this PR as well, however. Maybe have a look and see if you find anything useful?

[fredrik-bakke]

Also, while I'm here: in my VSCode Agda syntax highlighting extension, I found using YAML instead of JSON grammar files to be most helpful, as they require about half as many lines of code, and also you can usually get away with fewer escaped characters in your regexes. Moreover, I use Jinja2 templates to reduce code duplication. I would be happy to submit a PR adding this functionality to your extension as well if you want.

[fizruk]

Thank you and sorry for being slightly faster, I did not think someone else would try to do it :)

I will check current version of your PR and merge it.

There is one thing that I don't know yet how to fix: *.md files have Markdown Preview, but *.rzk.md do not anymore. Markdown Preview is useful when I insert SVG diagrams in the markdown files (e.g. see Associativity section for Segal Types). If you have ideas or you would like to submit a PR — it would be most welcome! :)

Also, it would be nice to have literate Rzk LaTeX support. Although rzk does not support literate *.rzk.tex files yet (but it's not difficult to add), I've used it already with the minted package (see here).

Regarding YAML — I do not have a strong opinion here, I will get back to you about it a bit later.

[fredrik-bakke]

Ah, I have some code for literate latex that I can copy over! Also, regarding YAML+Jinja2 vs. JSON, it may be instructive to compare these two files: agda.tmLanguage.j2.yml and agda.tmLanguage.json.
Regarding Markdown preview, I don't know how to make this work with the built-in preview function. There is however a "Markdown Preview Enhanced" extension that works just fine. Though this isn't the cleanest solution...

[fizruk]

I have installed Markdown Preview Enhanced (this one), but it does not seem to work for .rzk.md files on my machine.

[fredrik-bakke]

Sorry, I'll be on vacation for the next week. But I'll be back the week after that and pull the latex highlighting code! (And hopefully learn a bit of rzk)

[fredrik-bakke]

Maybe we can talk a bit then?

[fizruk]

Absolutely! I haven't merged this PR yet, because I get a weird error locally, but I'm unsure if it's actually related to the PR. I will double check soon and merge.