Old school - New school?

cdarke has asked for the wisdom of the Perl Monks concerning the following question:

In Mastering Perl, brian d foy uses the term 'Old School Perl' (in the context of using dbmopen). Is this the preferred phrase?
Would '20th Century Perl' vs '21st Century Perl' be more apt?
Do you have a better one?

How would monks define Old School and New School? Here is the start of my list:

Old School         New School
pre-5.6            5.8 or later
use CGI;           catalyst;
-w                 use warnings;
fingers crossed    use strict;
use vars;          my, our
Perl as shell      Perl as Perl
Perl as C          Perl as Perl
@ISA               use base (or parent)
bless {}           use Moose;
[download]

and so on...

update:I notice that the Moose::Manual uses the term Old School as well.

Comment on Old school - New school? Select or Download Code

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Re: Old school - New school? by jethro (Monsignor) on Oct 20, 2009 at 08:58 UTC
`F as filehandle $f as filehandle one argument open three argument open print "..." print Dumper(...) - create tests` [download] You could also just list all those modules in heavy use now that were not available in the olde tymes (like Log::Log4perl, Storable, WWW::Mechanize, Devel::NYTProf), but that would be a rather trivial answer to your question	[reply] [d/l]
Re^2: Old school - New school? by CountZero (Bishop) on Oct 20, 2009 at 18:03 UTC
`my $f` as filehandle? CountZero A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James	[reply] [d/l]
Re^3: Old school - New school? by jethro (Monsignor) on Oct 20, 2009 at 18:38 UTC
"use strict" was already mentioned by cdarke	[reply]
Re^4: Old school - New school? by CountZero (Bishop) on Oct 20, 2009 at 18:49 UTC
Re^2: Old school - New school? by Limbic~Region (Chancellor) on Oct 20, 2009 at 18:57 UTC
jethro, ~~Can you give me an example of a 1 argument open that isn't new school? I think you meant 2 arg open but perhaps not.~~ I am not overly familiar with 1 arg open but certainly 2 arg is old school as well. I initially thought 1 arg open would be used to open a scalar reference for reading/writing but perhaps you could show other forms so I know what to look out for. Cheers - L~R	[reply]
Re^3: Old school - New school? by jethro (Monsignor) on Oct 20, 2009 at 23:15 UTC
Actually the '1' was a mistake and it was just coincidence that there really is a 1 arg open.	[reply]
Re: Old school - New school? by moritz (Cardinal) on Oct 20, 2009 at 08:49 UTC
chromatic calls the "New School" Modern Perl. I'd also say it implies perl 5.10 or newer, instead of catalyst CGI::Application is fine. Perl 6 - links to (nearly) everything that is Perl 6.	[reply]
Re: Old school - New school? by ikegami (Patriarch) on Oct 21, 2009 at 01:43 UTC
Both `use warnings;` and `-w` have merits. "5.8 or later" should be "5.8.8 or later", in my opinion. I'd add DBI ⇒ DBI and ORMs. (Some things are complemented rather than replaced.)	[reply] [d/l] [select]