<div class="gmail_quote">On Sun, Jun 10, 2012 at 11:47 AM, Mark F. Adams <span dir="ltr"><<a href="mailto:mark.adams@columbia.edu" target="_blank">mark.adams@columbia.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I can have two sets of ISs and avoid the reverse flag. I was avoiding that option but now that I think about it it simplifies the control code.</blockquote></div><br><div>There is already an API for specifying forward and reverse, so I don't see a problem with using it.</div>