I'm pasting a text diff in standard format in a comment. I would like to highlight it as a diff (adds/removes different colors).
When viewing other files, I can do Highlight As -> Diff, but when pasting my block comment, nothing seems to happen if I do lang=Diff. Is there any way to make that block render as a diff.
97c82,83 < a --- > b
Summary: it actually is highlighting the --- section marker, which I didn't notice. It's just a mostly useless highlight.
According to the Remarkup Reference to use syntax highlighting you need to have Pygments enabled along with using the syntax:
```lang=diff 97c82,83 < a --- > b ```
I tried this on my system and it appears to highlight, as it does in the example you have above (the three hyphens appear red).