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package Text::Handlebars;
use strict;
use warnings;
use base 'Text::Xslate';
use Scalar::Util 'weaken';
sub default_functions {
my $class = shift;
return {
%{ $class->SUPER::default_functions(@_) },
'(is_array)' => sub {
my ($val) = @_;
return ref($val) && ref($val) eq 'ARRAY';
},
'(is_empty_array)' => sub {
my ($val) = @_;
return @$val == 0;
},
'(make_array)' => sub {
my ($length) = @_;
return [(undef) x $length];
},
'(is_code)' => sub {
my ($val) = @_;
return ref($val) && ref($val) eq 'CODE';
},
'(new_vars_for)' => sub {
my ($vars, $value, $i) = @_;
$i = 0 unless defined $i; # XXX
if (my $ref = ref($value)) {
if (defined $ref && $ref eq 'ARRAY') {
die "no iterator cycle provided?"
unless defined $i;
$value = ref($value->[$i])
? $value->[$i]
: { '.' => $value->[$i] };
$ref = ref($value);
}
return $vars unless $ref && $ref eq 'HASH';
weaken(my $vars_copy = $vars);
return {
%$vars,
%$value,
'..' => $vars_copy,
};
}
else {
return $vars;
}
},
};
}
sub options {
my $class = shift;
my $options = $class->SUPER::options(@_);
$options->{compiler} = 'Text::Handlebars::Compiler';
return $options;
}
sub _register_builtin_methods {
my $self = shift;
my ($funcs) = @_;
weaken(my $weakself = $self);
$funcs->{'(run_code)'} = sub {
my ($code, $vars) = @_;
return $self->render_string($code->(), $vars);
};
}
1;
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