NAME

Catmandu::Fix::perlcode - execute Perl code as fix function

DESCRIPTION

Use this fix in the Catmandu fix language to make use of a Perl script:

perlcode(myscript.pl)

The script (here myscript.pl) must return a code reference:

sub {
    my $data = shift;
    ...
    return $data;
}

When not using the fix language this

my $fixer = Catmandu::Fix->new( fixes => [ do 'myscript.pl' ] );
$fixer->fix( $item ); 

is roughly equivalent to:

my $code = do 'myscript.pl';
$item = $code->( $item )

All scripts are cached based on their filename, so using this fix multiple times will only load each given script once.

The code reference gets passed a second value to reject selected items such as possible with see Catmandu::Fix::reject:

sub {
    my ($data, $reject) = @_;
    return rejection_criteria($data) ? $reject : $data;
}

To indicate the end processing, return undef.

SEE ALSO

Catmandu::Fix::code, Catmandu::Fix::cmd