Rubric or user-specified chunk types

[daviddalpiaz]

• rubric = TRUE to add comments that only appear in a *-rubric.pdf document.
• xyz = TRUE to add a user specified chunk and file type?

[coatless]

My thought on the next iteration is to define a custom markdown engine in a similar manner to how bookdown generates theorem, definition, lemma, et cetera environments. May be a bit more robust than the current approach.

We could still add a flag for "xyz" tagging. Likely need to figure out the best way to specify how the flag should propagate to the two output results. Maybe create a document object with the intended overflags for each one?

[daviddalpiaz]

The former is probably the way we should go. You raise a good point about tag propagation. Currently students are exposed to solution = TRUE.

[coatless]

So, I've toyed around with this. The issue we'll run into with going from:

```{asis, solution = TRUE}

to:

is this assumes only _text_ is being displayed. Having the `solution = TRUE` flag allows us to still use the `r` engine, e.g.

How would you feel if I just removed the tagging architecture on the rendered Rmd files? (e.g. delete `solution = TRUE`, et cetera.)

[daviddalpiaz]

Just removing the tagging in the output is what I had in mind.