Hi, I have a code part that behaves different from what I expected. sub_expand returns a list of hash references. If it returns more than one hash reference, no problem, the template produces the expected output. If the array contains just one hash reference (hash #2 is removed), the TT2 assumes that every pair of the hash #1 becomes other hash refs, so 5 different records exist. If sub_expand() returns \@expand_result (reference to @expand_result), then everything is OK even with one hash ref. Is there anybody to able to explain me the difference of these two cases?

Thanks in advance,

regards.

#!/usr/bin/perl -w
use Template 2.22;
 
sub sub_expand()
{
  @expand_result = ();
 
  push(@expand_result,
     #hash #1
     {'item_name' => "item_name #1",
      'item_desc' => 'item description #1',
      'item_size' => 4,
      'item_kind' => 'item_kind #1',
      'item_type' => 'item_type #1'},
     #hash #2
     {'item_name' => "item_name #2",
      'item_desc' => 'item description #2',
      'item_size' => 4,
      'item_kind' => 'item_kind #2',
      'item_type' => 'item_type #2'} );
 
  return @expand_result;
}
 
my $tt = Template->new({ INCLUDE_PATH => "./",
                         VARIABLES => {
                                        EXP => \&sub_expand, #macro
                                        OUTPUT_PATH => "./",
                                       ABSOLUTE => 1 }
                         }) || die $tt->error, "\n";
 
$tt->process("template.txt", {}, "output.txt") || die $tt->error;

[download]
template.txt 
[%- FOREACH c =  EXP() %]
   [% loop.count %]/[% loop.size %] - its size is [% c.size %]
   [% c.item_name %]
   [% c.item_kind %]
[%- END %]

[download]

In reply to Template Toolkit 2 strange behaviour by Aramis

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