# year
i <- regexpr("(?<=\\s{1})\\d{4}(?=-{1})", meta$Built, perl = TRUE)
year <- substring(meta$Built, i, i + 3)

# version
pkg <- meta$Package
vers <- meta$Version
title <- meta$Title
if(is.null(vers))
  vers <- packageVersion(pkg)
note <- paste("R package version", vers)

citHeader(paste("To cite ", pkg, "in publications, please use:"))

bibentry(
  bibtype = "Manual",
  title   = paste0("{", pkg, "}: ", title),
  author  = as.person("Johan Larsson"),
  year    = year,
  note    = note,
  url     = paste0("https://cran.r-project.org/package=", pkg)
)
