Re: RPGV?

[Steve Richter <stephenrichter@xxxxxxxxx>]

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/