Re: [FWP] string increment

[Ken Scott <kscott-list@pcisys.net>]

On Thu, 27 Apr 2000, Ronald J Kimball wrote:

> On Thu, Apr 27, 2000 at 07:48:32PM +0100, BAZLEY, Sebastian wrote:
> > VMS also does not mind if the trailing " is omitted.
> > 
> > But it gives:
> > 
> > $ perl -le"map/^a*.z*$/&&print,aaaa..zzzz
> > aaaa
> > aaab
> > ....
> > aaaz
> > aabz
> > ....
> > aazz
> > ....
> > wzzz
> > xzzz
> > yzzz
> > zzzz
> 
> Please review the earlier messages in this thread.  That is the desired
> output.
> 
> 
> > whereas
> > 
> > $ perl -le"map/^a*.z*$/&print,aaaa..zzzz
> > 
> > seems to give the correct output.
> 
> No, it does not, as has already been explained several times.  That code is
> functionally equivalent to:
> 
> perl -le'map print,aaaa..zzzz'
> 
> and does not produce the desired output.
> 

Not trying to start any arguments, or prolong them, but I tried both of
the bits of code quoted above, on Win NT 4.0, using ActiveState Perl 5.6.

The first (which is purported to give correct output), gave me output
which went through the first iteration correctly, but then started jumping
around and skipping a lot of values. I wound up with about 50 lines of
output.

When I entered the second bit of code (the 'incorrect' version), it
started streaming strings down my screen, and I could watch the
progression of the values.

So, I don't understand what it means, or why it is, but it is a point of
data in the quest for fun.

Ken

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-- 
><>   Ken Scott   kscott@pcisys.net   http://www.pcisys.net/~kscott   
                                                                      
              This is the day that the Lord has made;             
              I will rejoice and be glad in it!          -- Psalm 118:24  



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