in reply to Control break with Template::Toolkit

It's possible, but I'm not sure the template is the best place to put logic into: 
#!/usr/bin/perl
use warnings;
use strict;

use Template;

my $template = 'Template'->new;

my @reclist = ([1, 2, 'A', 4],
               [3, 4, 'A', 5],
               [5, 5, 'B', 2],
               [6, 2, 'B', 3],
               [1, 2, 'C', 2],
               [2, 3, 'C', 2],
               [1, 3, 'C', 1]);

$template->process(\( join "", <DATA>),
                   {reclist => \@reclist});

__DATA__
[% lastcat = "" %]
[% FOREACH catrec IN reclist %]
   [% IF lastcat != catrec.2 %][% catrec.2 %][% lastcat = catrec.2 %][
+% END %]
   [% FOREACH rec IN catrec %]
      [% rec %]
   [% END %]
[% END %]

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map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]

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Re^2: Control break with Template::Toolkit
by haj (Vicar) on Nov 14, 2019 at 01:02 UTC
    ...but I'm not sure the template is the best place to put logic into:
    MVC enthusiasts may enjoy heated debates about this, but in my opinion those doubts aren't worth their time. I'd easily argue that the desired output is a matter of data presentation and not a matter of logic, so a template is a quite appropriate place. We both have demonstrated that TT is quite capable of doing the transformation :)
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