Andy Lester > MARC-Record-1.39_02 > MARC::File::MicroLIF

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Source   Latest Release: MARC-Record-2.0.6

NAME ^

MARC::File::MicroLIF - MicroLIF-specific file handling

SYNOPSIS ^

    use MARC::File::MicroLIF;

    my $file = MARC::File::MicroLIF->in( $filename );

    while ( my $marc = $file->next() ) {
        # Do something
    }
    $file->close();
    undef $file;

EXPORT ^

None.

The buffer must be large enough to handle any valid record because we don't check for cases like a CR/LF pair or an end-of-record/CR/LF trio being only partially in the buffer.

The max valid record is the max MARC record size (99999) plus one or two characters per tag (CR, LF, or CR/LF). It's hard to say what the max number of tags is, so here we use 6000. (6000 tags can be squeezed into a MARC record only if every tag has only one subfield containing a maximum of one character, or if data from multiple tags overlaps in the MARC record body. We're pretty safe.)

METHODS ^

in()

Opens a MicroLIF file for reading.

Gets the next chunk of data. If $want_line is true then you get the next chunk ending with any combination of \r and \n of any length. If it is false or not passed then you get the next chunk ending with \x60 followed by any combination of \r and \n of any length.

All trailing \r and \n are stripped.

header()

If the MicroLIF file has a file header then the header is returned. If the file has no header or the file has not yet been opened then undef is returned.

decode()

Decodes a MicroLIF record and returns a USMARC record.

Can be called in one of three different ways:

    $object->decode( $lif )
    MARC::File::MicroLIF->decode( $lif )
    MARC::File::MicroLIF::decode( $lif )

TODO ^

RELATED MODULES ^

MARC::File

LICENSE ^

This code may be distributed under the same terms as Perl itself.

Please note that these modules are not products of or supported by the employers of the various contributors to the code.

AUTHOR ^

Andy Lester, <andy@petdance.com>

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