Highlight syntax in shell blocks as bash

[ivan-aksamentov]

Currently shell blocks are treated as strings. Would be nice if they could have syntax highlighting for shell scripts instead. Bash is probably the most common.

rule:
    shell:
       """
       what="world"
       echo "Hello ${what}"
       """

rule:
    run: shell("echo Hello world")

[alpha-beta-soup]

As in the linked issue, snakefmt enforces a linebreak preceding these codeblocks. This removes syntax highlighting that otherwise works. It would be good to have syntax highlighting in both cases.

[Hocnonsense]

I link another issue that want to bring color into the shell part, and these feature requests can be different, for example, which highlight format is expected, the code-block-style in or assignment style in python?

[Hocnonsense]

The highlight issue of so-called docstring can be fixed via PR #44

I've try to add syntax highlighting for shell scripts. It is very hard in vscode.
The problem is that snakemake use textmate to render and highlight.
That means It is nearly impossible to correcly mark the string is just inside the shell block.