+
+ def truncate(text, max_length \\ 200, omission \\ "...") do
+ # Remove trailing whitespace
+ text = Regex.replace(~r/([^ \t\r\n])([ \t]+$)/u, text, "\\g{1}")
+
+ if String.length(text) < max_length do
+ text
+ else
+ length_with_omission = max_length - String.length(omission)
+ String.slice(text, 0, length_with_omission) <> omission
+ end
+ end