Possible formatting bug?

[maxdrohde]

There is some strange formatting in this part of the Evaluation chapter (see below image). I think it is due to the sidebar styling.

adv-r/Evaluation.Rmd

Lines 150 to 165 in 714f95f

	::: sidebar
	**Expression vectors**
	\index{expression vectors}
	`base::eval()` has special behaviour for expression _vectors_, evaluating each component in turn. This makes for a very compact implementation of `source2()` because `base::parse()` also returns an expression object:
	```{r}
	source3 <- function(file, env = parent.frame()) {
	lines <- parse(file)
	res <- eval(lines, envir = env)
	invisible(res)
	}
	```
	While `source3()` is considerably more concise than `source2()`, this is the only advantage to expression vectors. Overall I don't believe this benefit outweighs the cost of introducing a new data structure, and hence this book avoids the use of expression vectors.
	:::