Jenn, that's a misapplication of the fieldaddtobeg function. Here's the
definition for that function:
fieldaddtobeg | field | data
field 3 digits specify the field
data new field data added to the beginning of the field
(only for fields without indicators (001-009)
It adds data to the beginning of those sub-010 fields. It does not add a
new field.
To add a field, use the ADD stanza; from the documentation:
[ADD]
field | L1 | L2 | # | subfield | data
field
3 digits specify which field to add
L1
the first indicator character; space if empty
L2
the second indicator character; space if empty
#
the number of subfield+data pairings following
subfield
1 character denoting the subfield
data
the subfield data
In each case, the field, with specified indicators, if any, subfield,
and data
is added as a complete field, whether or not such a field already exists.
If you're adding a fixed field, leave L1, L2, "#", and subfield blank,
empty,
i.e., not even a space; to wit: 009|||||this is 009 stuff
I hope this helps.
Roy
On 5/12/2011 12:48 PM, Bryan Baldus wrote:
On Thursday, May 12, 2011 10:58 AM, Jenn Nolte wrote:
I am working on a shell script that will process the MARC records that
represent items from our e-serials management database, and the thing I am
stuck on is adding brand new 006 and 007 fixed field tags to each record. I am
using the marcedit.pl fieldaddtobeg function, but it corrupts the records and
makes them unparseable.
Is there a quick and easy way to do this within a script? (I know Perl works
best with MARC but I am open to any suggestions).
I'm not familiar with marcedit.pl. I'd use MARC::Batch and its related modules,
similar to the mock-up listed below (which assumes the 008 to be present to
insert the new field(s) in the proper order; I've thrown the code together
haphazardly, so it may contain errors). Of course with 006 and 007, you also
run into length issues--006 is always 18 bytes; 007's length depends on the
category of material. If the fields don't have the correct length, some systems
may reject the records.
##############
use MARC::Batch;
#$inputfile = "path_to_your_file_however_you_get_it";
my $batch = MARC::Batch->new('USMARC', "$inputfile");
#$exportfile = "path_to_your_file_however_you_get_it";
open(OUT, ">$exportfile") or die "Can not open $exportfile, $!";
RECORD: while (my $record = $batch->next()) {
# $field006 = ''; #string of valid 006 characters (change 006 to 007 for
007)
my $new006 = MARC::Field->new( '006', $field006);
$record->insert_fields_before($record->field('008'), ($new006));
print OUT $record->as_usmarc();
}# while records
#################
I hope this helps,
Bryan Baldus
Cataloger
Quality Books Inc.
The Best of America's Independent Presses
1-800-323-4241x402
bryan.bal...@quality-books.com
eij...@cpan.org
http://home.comcast.net/~eijabb/
