Add Formatter.

lib/pleroma/formatter.ex

@@ -0,0 +1,13 @@
+defmodule Pleroma.Formatter do
+
+  @link_regex ~r/https?:\/\/[\w\.\/?=\-#]+[\w]/
+  def linkify(text) do
+    Regex.replace(@link_regex, text, "<a href='\\0'>\\0</a>")
+  end
+
+  @tag_regex ~r/\#\w+/u
+  def parse_tags(text) do
+    Regex.scan(@tag_regex, text)
+    |> Enum.map(fn (["#" <> tag = full_tag]) -> {full_tag, tag} end)
+  end
+end