add a way to declare a cell and a command run cell

[stevenlis]

Please considering add a way to declare a cell like #%% so that users can run code from cell to cell without selecting multiple lines of code.

example:
https://code.visualstudio.com/docs/python/jupyter-support-py#_jupyter-code-cells
https://nteract.gitbooks.io/hydrogen/

[andycraig]

Hi @StevenLi-DS, thank you for the suggestion. Using Ctrl-Enter sends multiple lines of code if they’re linked together by brackets or pipes etc. but being able to declare cells would enable more control over what constitutes a sendable block of code.

I’ll put this as ‘help wanted’.

[assignUser]

I would suggest implementing this in a way that makes it compatible with rstudio sections: https://support.rstudio.com/hc/en-us/articles/200484568-Code-Folding-and-Sections
e.g. # Section ----
To allwo easier conversion from rstudio to vsc :)

This would also make it possible to add a code navigation feature from rstudio that generates a "table of contents" via the code sections.
Latex-Workshop does the same in the sidebar:

Maybe it is possible to use some of their code?

[renkun-ken]

@assignUser

Code section is already implemented in languageserver by REditorSupport/languageserver#163 and folding by REditorSupport/languageserver#294.

[renkun-ken]

Regarding the original request here, cell-based approach is more supported by the Notebook API to have code cells suggested at #378 and being implemented at #394.

It is also possible to support in-document cells similar with vscode-python's. It looks like we might need to take a look at the APIs of editor decoration and code actions.

[assignUser]

@renkun-ken Oh that's cool! Sorry for my superflous comment, vsc-r/lsp can do so much I am still learning everyday. Thank you for your work on these projects.

[renkun-ken]

With rmarkdown code chunks support implemented, this code chunk in R script should be straightforward.

[ElianHugh]

If this is something people are still interested in, I have this working by piggybacking on rmarkdown.ts like @renkun-ken suggested:

Still needs a little polishing, but is functioning as expected

[renkun-ken]

@ElianHugh Thanks for working on this. I believe it is still quite useful. It would be nice for you to put it into a PR anytime you like.