Text::PDF::Null - PDF Null type object. This is a subclass of

Text-PDF documentation Contained in the Text-PDF distribution.

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NAME

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Text::PDF::Null - PDF Null type object. This is a subclass of Text::PDF::Objind and cannot be subclassed.

METHODS

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Text::PDF::Null->new

Returns the null object. There is only one null object.

$s->realise

Pretends to finish reading the object.

$s->outobjdeep

Output the object in PDF format.

$s->is_obj

Returns false because null is not a full object.

$s->copy

Another no-op.

$s->val

Return undef.

Text-PDF documentation Contained in the Text-PDF distribution. 
package Text::PDF::Null;


  
use strict;

use vars qw(@ISA);
@ISA = qw(Text::PDF::Objind);

# There is only one null object  (section 3.2.8).
my ($null_obj) = {};
bless $null_obj, "Text::PDF::Null";



  
sub new {
    return $null_obj;
}


sub realise {
    return $null_obj;
}


sub outobjdeep
{
    my ($self, $fh, $pdf) = @_;
    $fh->print ("null");
}


sub is_obj {
    return 0;
}


  
sub copy {
    return $null_obj;
}


  
sub val
{
    return undef;
}

1;