Re: RPGV?

On Tue, Jan 12, 2010 at 8:54 PM, Hans Boldt <hans@xxxxxxxxxx> wrote:

You want to see how to code this using a yield in Python? OK:

-----------
def getNum(line):
   for n in line.split(","):
       yield int(n) if n.isdigit() else None

line = "123,213,33,3534"
for num in getNum(line):
   if num:
       print num
   else:
       print "item could not be parsed"
-----------

Frankly, I think Python has spoiled me. I look at C# code and I see
ugliness and cruft.

I like that Python code. If we can't get a fully working, documented
pre compiler in ILE, sure IBM should add "yield" to the new RPG.

As I understand it the difference between C# and Python is due to
dynamic vs static typing. There certainly is a ton of stuff you need
to learn to work in C#. I think the objective is to be able to write
composable code. Where functions are "side effect free" And objects
are immutable. New applications can actually be composed from a
hierarchy of individual/unit tested objects and methods. As has been
promised from the days of the first procedure with parameters.

an excellent lecture series on functional programming on the MSFT
channel 9 site:
http://channel9.msdn.com/shows/Going+Deep/C9-Lectures-Dr-Erik-Meijer-Functional-Programming-Fundamentals-Chapter-13-of-13/