<!DOCTYPE class>
<class name='IOSource' extends='Source'>
   A Source that wraps an IO.  See the Source class for method documentation
  <method name='initialize'>
    <argument name='arg'/>
  </method>
  <method name='scan'>
    <argument name='pattern'/>
    <argument default='false' name='consume'/>
  </method>
  <method name='match'>
    <argument name='pattern'/>
    <argument default='false' name='consume'/>
  </method>
  <method name='empty'/>
</class>