class Sprockets::SafetyColons

def evaluate(context, locals, &block)
  # If the file is blank or ends in a semicolon, leave it as is
  if data =~ /\A\s*\Z/m || data =~ /;\s*\Z/m
    data
  else
    # Otherwise, append a semicolon and newline
    "#{data};\n"
  end
end