Hi Mark,<br><br><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div link="blue" vlink="purple" lang="EN-AU"><div>Because Haskell is not OO, it is functional, I was wondering
if there is some kind of analogous “design pattern”/”template”
type concept that describe commonly used functions that can be “factored
out” in a general sense to provide the same kind of usefulness that
Design Patterns do for OOP. Basically I’m asking if there are any kinds
of “common denominator”  function compositions that are used
again and again to solve problems. If so, what are they called?</div></div></blockquote></div><br>Look at Jeremy Gibbons&#39; publications. All of the ones that have &quot;pattern&quot; or &quot;origami&quot; in the title describe design patterns in Haskell. Some of them relate to the translation of Gang-of-Four patterns.<br>
<br>  <a href="http://www.comlab.ox.ac.uk/people/publications/date/Jeremy.Gibbons.html">http://www.comlab.ox.ac.uk/people/publications/date/Jeremy.Gibbons.html</a><br><br>Regards,<br>Sean<br>