Ah, but you're thinking of someone who gets to choose what's installed on a machine, 
or used on a project.  When I referred to "someone for whom Perl wasn't an option", I 
was thinking of someone whose manager simply directed him or her to implement 
something in DCL.  

/ Tom Edelson

-----Original Message-----
From: Carl Friedberg [mailto:[EMAIL PROTECTED]] 
Sent: Wednesday, September 04, 2002 11:52 AM
To: Tom Edelson; Thomas R Wyant_III; [EMAIL PROTECTED]
Subject: RE: Perl vs. DCL (was RE: Set Default not Working)


Tom, 

I personally feel that logical names and name tables are among the most powerful 
features easily available to end users on VMS. However, I would not equate them with 
Perl hashes. There are overheads associated with logical names which could cause 
problems if they were used where Perl hashes would be a more appropriate (and 
efficient) mechanism.

As Perl is free software (although requiring ANSI C to compile), it can be installed 
on most modern VMS operating systems. For those who are stuck with a VAX730 or similar 
dinosaur, it probably is not an option. The hobbyist license makes DEC/Compaq C 
available to all interested home
(non-commercial) users.

Just my 2 cents.

-----Original Message-----
From: Tom Edelson [mailto:[EMAIL PROTECTED]] 
Sent: Wednesday, September 04, 2002 11:44 AM
To: Thomas R Wyant_III; [EMAIL PROTECTED]
Subject: RE: Perl vs. DCL (was RE: Set Default not Working)


You can create as many logical name tables as you want, and you can specify that a new 
one will have, as its parent table, another of the ones you created.  So you can build 
a tree structure of name tables.  I think this could be used to implement a hash of 
hashes, even one with multiple levels.  

However!  I never meant to suggest that anyone (except a masochist) would choose to do 
this in DCL, if they had the choice of doing it in Perl.  It's a curiousity, like a 
dog walking on its hind legs.  I was feeling pleased with myself for having noticed 
that it should be possible.  But its only practical importance would be to someone for 
whom Perl wasn't an option.  

/ Tom Edelson

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