Hello,
I want to support syntax like "vfield(name);" in templates but
the vfield code also needs access to the template context, which I
think excludes adding it to VARIABLES. If I add "vfield" to BLOCKS
then it needs to be called with PROCESS. To support the syntax
I prefer I've added a macro which calls PROCESS to the PRE_PROCESS
list. This description isn't very clear, hopefully the code
shows what I'm doing
Is there a better way to support this simpler syntax?
The only other feature that seemed to fit the syntax and has
context access is a plugin. I suspect there are other
techniques lurking around.
#!/usr/bin/perl
use Template;
sub vfield {
my $context = shift;
my $stash = $context->stash();
my $fq_vfield = $stash->get('fq_vfield');
my $line = $stash->get('line');
# ... do stuff
return "$fq_vfield @ $line";
}
$blocks{vfield} = \&vfield; # allow [% PROCESS vfield ... %]
$blocks{vfield_macro} = # allow [% vfield(name) %]
'[% MACRO vfield(vf1) PROCESS vfield fq_vfield=vf1 %]'; # INCLUDE?
my $tt = Template->new(
BLOCKS => \%blocks,
PRE_PROCESS => [ 'vfield_macro' ],
);
$tt->process(\'[% vfield("test") %]', { line => 123 } );
__END__
test @ 123
The reason I'm concerned about the syntax is that the templates
are for error messages which I prefer to be intelligible to my users
and clients in unprocessed form.
Brad
--
... But in the end, the details of a matter are important. The right
or wrong of one's way of doing thing is found are trivial matters.
-- Hagakure http://bereft.net/hagakure/
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