DBM_Filter::null - filter for DBM_Filter


perl documentation Contained in the perl distribution.

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NAME

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DBM_Filter::null - filter for DBM_Filter

SYNOPSIS

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    use SDBM_File; # or DB_File, or GDBM_File, or NDBM_File, or ODBM_File
    use DBM_Filter ;

    $db = tie %hash, ...
    $db->Filter_Push('null');

DESCRIPTION

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This filter ensures that all data written to the DBM file is null terminated. This is useful when you have a perl script that needs to interoperate with a DBM file that a C program also uses. A fairly common issue is for the C application to include the terminating null in a string when it writes to the DBM file. This filter will ensure that all data written to the DBM file can be read by the C application.

SEE ALSO

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DBM_Filter, perldbmfilter

AUTHOR

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Paul Marquess pmqs@cpan.org


perl documentation Contained in the perl distribution.

package DBM_Filter::null ;

use strict;
use warnings;

our $VERSION = '0.02';

sub Store
{
    no warnings 'uninitialized';
    $_ .= "\x00" ;
}

sub Fetch
{
    no warnings 'uninitialized';
    s/\x00$// ;
}

1;

__END__