Fun with shifting bytes / Python translation

ruby-talk
1

Thanks for your help! That fixed it. The rest of the math was
straight-forward to port. Now back to the QWK/REP import routine…

Mark

···

-----Original Message-----
From: angus@quovadis.com.ar [mailto:angus@quovadis.com.ar]
Sent: 08 August 2002 10:50
To: ruby-talk@ruby-lang.org
Subject: Re: Fun with shifting bytes / Python translation

[…]

I don’t understand how lamba or reduce work, for instance.
[…]
L=map(lambda x: ord(x), L[0:4])
L.reverse()
n=reduce(lambda x,y: x*256+y, L, 0L)

I don’t know about the math, but with regard to the lambdas, I suppose the
first creates an array containing the byte values of the string:

l = l.split(//).map{ |c| c[0] }
l.reverse!

and the second could be something like this:

n = 0
l.each {|i| n = n*256+i }

But I really don’t know Python.

Good luck.

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2

Wow. Some people are actually still using QWK, or is that an effort in
retrocomputing? Have you also considered FTSC-1 NetMail? :wink: (my address
was 1:243/53 back then)

···

On Mon, 12 Aug 2002, Firestone, Mark - Technical Support wrote:

Thanks for your help! That fixed it. The rest of the math was
straight-forward to port. Now back to the QWK/REP import routine…

Mathieu Bouchard http://artengine.ca/matju