Re: Callbacks and templates.

[davorg]

The Template Toolkit can use callbacks. I'm not sure exactly what you want to do, but this demonstrates the general idea.

#!/usr/bin/perl                                                       
+                         

use strict;
use warnings;
use Template;                                                         
+                       

my $tt = Template->new;                                               
+                                 

my $data = { word => 'callbacks',
             emphasise => \&emphasise };
                                                                      
+          
$tt->process(\*DATA, $data) || die $tt->error(), "\n";
                                                                      
+          
sub emphasise {
  return "** @_ **";
}
                                                                      
+          
__DATA__
This is a template.
It includes [% emphasise(word) %]

[LukeyBoy]

That looks great, thanks!

[bart]

I didn't know you could do it this way. Neat.

Anyway, TIMTOWTDI, even for Template-Toolkit. Here's the same demo modified to use a filter, which is like a "program" (thus, a sub) you pipe the data through.

#!/usr/bin/perl -w

use strict;
use warnings;
use Template;

my $tt = Template->new(FILTERS => { emphasise => \&emphasise });

my $data = { word => 'callbacks' };

$tt->process(\*DATA, $data) || die $tt->error(), "\n";

sub emphasise {
  return "** @_ **";
}

__DATA__
This is a template.
It includes [% word | emphasise %]