+ return linkify(sanitize(simple_format(text)))
+ end
+
+ def linkify(text)
+ return auto_link(text, :link => :urls, :html => { :rel => "nofollow" })
+ end
+
+ def html_escape_unicode(text)
+ chars = ActiveSupport::Multibyte::Chars.u_unpack(text).map do |c|
+ c < 127 ? c.chr : "&##{c.to_s};"
+ end
+
+ return chars.join("")