I will be voting this up. I honestly believe that this
post makes one of the most fundamental points about good
programming technique that I have seen merlyn
you read books on programming you will hear it echoed again
and again in many different ways.
The point is that the key to maintainability is to have each
thing done in one place. You want to avoid using two
parallel efforts. Not only is it duplicated effort, both
originally and ongoing, but it is a significant
The easiest route to code-sharing in the short-term is
called cut-and-paste. However if you stay aware of where
your energy is going and work to get to code-sharing through
having any particular task done once in your code-base, you
will find that decision paying you back time after time
For more on this I recommend virtually any classic, starting
with The Pragmatic Programmer because it is not only
classic, but also mentions Perl quite a few times. :-)
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