MARC::File - Base class for files of MARC records
use MARC::File::USMARC;
# If you have weird control fields...
use MARC::Field;
MARC::Field->allow_controlfield_tags('FMT', 'LDX');
my $file = MARC::File::USMARC->in( $filename );
while ( my $marc = $file->next() ) {
# Do something
}
$file->close();
undef $file;
None.
Opens a file for import. Ordinarily you will use MARC::File::USMARC
or MARC::File::MicroLIF to do this.
my $file = MARC::File::USMARC->in( 'file.marc' );
Returns a MARC::File object, or undef on failure. If you
encountered an error the error message will be stored in
$MARC::File::ERROR.
Optionally you can also pass in a filehandle, and MARC::File.
will ``do the right thing''.
my $handle = IO::File->new( 'gunzip -c file.marc.gz |' );
my $file = MARC::File::USMARC->in( $handle );
Reads the next record from the file handle passed in.
The $filter_func is a reference to a filtering function. Currently,
only USMARC records support this. See the MARC::File::USMARC manpage's decode()
function for details.
Returns a MARC::Record reference, or undef on error.
Skips over the next record in the file. Same as next(),
without the overhead of parsing a record you're going to throw away
anyway.
Returns 1 or undef.
Simlilar to the methods in the MARC::Record manpage and the MARC::Batch manpage,
warnings() will return any warnings that have accumulated while
processing this file; and as a side-effect will clear the warnings buffer.
Closes the file, both from the object's point of view, and the actual file.
Writes a record to the output file. This method must be overridden
in your subclass.
Decodes a record into a USMARC format. This method must be overridden
in your subclass.
the MARC::Record manpage
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.
Andy Lester, <andy@petdance.com>
|