Convert a mastodon user link to handle

Convert a mastodon user link to handle

Usage

masto2user(x)

Arguments

x

Character. Link to user's profile

Value

Character user handle @user@instance

Examples

if (FALSE) { # local_eg()
masto2user("https://fosstodon.org/@steffilazerte")
masto2user("steffi")
masto2user("@steffilazerte@fosstodon.org")
masto2user(NA)
}