url_unikn removes various patterns (e.g.,
"http", "https", "://", "www.") from the
front of a given URL and returns the remaining character string
with an n-dash (Unicode \u2013) prefix,
rather than the former figure dash (\u2012) prefix
(as the latter created issues on Fedora Linux systems).
url_unikn(url = "https://www.uni-konstanz.de/")The url to be written (as copied from a web browser).
url_unikn("https://www.uni-konstanz.de/")
#> [1] "– uni-konstanz.de"