+ def parse_mentions(text) do
+ # Modified from https://www.w3.org/TR/html5/forms.html#valid-e-mail-address
+ regex = ~r/@[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@?[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*/
+
+ Regex.scan(regex, text)
+ |> List.flatten
+ |> Enum.uniq
+ |> Enum.map(fn ("@" <> match = full_match) -> {full_match, Repo.get_by(User, nickname: match)} end)
+ |> Enum.filter(fn ({_match, user}) -> user end)
+ end
+
+ def add_user_links(text, mentions) do
+ Enum.reduce(mentions, text, fn ({match, %User{ap_id: ap_id}}, text) -> String.replace(text, match, "<a href='#{ap_id}'>#{match}</a>") end)
+ end
+