<div dir="ltr"><div class="gmail_extra">I guess I'm confused.  What is the difference between:</div><div class="gmail_extra"><br></div><div class="gmail_extra"><span style="font-size:12.8px">while true do this then that</span><br></div><div class="gmail_extra"><span style="font-size:12.8px"><br></span></div><div class="gmail_extra"><span style="font-size:12.8px">and:</span></div><div class="gmail_extra"><br></div><div class="gmail_extra">while true do this</div><div class="gmail_extra">that</div><div class="gmail_extra"><br></div><div class="gmail_extra">And what is better about:</div><div class="gmail_extra"><br></div><div class="gmail_extra">while true do this otherwise/else that</div><div class="gmail_extra"><br></div><div class="gmail_extra">and:</div><div class="gmail_extra"><br></div><div class="gmail_extra">if true</div><div class="gmail_extra">  while true do this</div><div class="gmail_extra">else</div><div class="gmail_extra">  that</div><div class="gmail_extra"><br></div><div class="gmail_extra">The latter may have a difference if the thing that returns true for the "if" could be false by the time the "while" is executed, I suppose.</div><div class="gmail_extra"><br></div><div class="gmail_extra">Jeff.</div></div>