# should be parsed as dependencies (use only lower-case letters for package names)
library(a)
library("b")
base::library(c)
base::library("d", character.only = TRUE)
requireNamespace("e")
base::requireNamespace("f", quietly = TRUE)
xfun::pkg_attach(c("g", "h"))
pkg_attach2("i", "j")
k::foo()
l:::bar()
"m"::baz()

# should NOT be parsed as dependencies (use only upper-case names for package names)
library(A, character.only = TRUE)