(group x) tries laying out
x into a single
line by removing the contained line breaks; if this does not fit the
page, or when a
hardline within
x prevents it from
being flattened,
x is laid out without any changes.
The
group function is key to layouts that adapt to available
space nicely.
See
vcat,
line, or
flatAlt for examples that are
related, or make good use of it.