Similar to perls qw(), however, in R spaces between args in function call
always cause an error, so qw(foo bar) wouldn't work. Workaround is either a
single string split at spaces, or unquoted elements, separated by commas.
qw(x)
qc(...)A single string of elements to be split at whitespace chars.
Unquated words, separated by comma.
A vector of quoted words.
Took inspiration from stackoverflow/qw and github/Jarrett Byrnes
qw("foo bar") # with a strsplit
#> [1] "foo" "bar"
qc(foo, bar) # or unquoted, but with commas
#> [1] "foo" "bar"