58a59,62
> 	
> 	my $builder = $ctx->stash('builder');
> 	my $tokens = $ctx->stash('tokens');
>     		
59a64,69
> 		# expand embeded expressions that may be in the year argument
> 		if ($year =~ s/\[(\/?MT[^\]]+)\]/\<$1\>/g) {
> 				my $tok = $builder->compile($ctx, $year);
> 				defined ($year = $builder->build($ctx, $tok)) or return $ctx->error($builder->errstr);
>     	}
> 
79,80d88
< 	my $builder = $ctx->stash('builder');
< 	my $tokens = $ctx->stash('tokens');