=head1 NAME
MARC::Errorchecks -- Collection of MARC 21/AACR2 error checks
=head1 DESCRIPTION
Module for storing MARC error checking subroutines,
based on MARC21, AACR2, and LCRIs.
These are used to find errors not easily checked by
the MARC::Lint and MARC::Lintadditions modules,
such as those that cross field boundaries.
Each subroutine should generally be passed a MARC::Record object.
Returned warnings/errors are generated as follows:
push @warningstoreturn, join '', ($field->tag(), ": [ERROR TEXT]\t");
return \@warningstoreturn;
=head1 SYNOPSIS
use MARC::Batch;
use MARC::Errorchecks;
#See also MARC::Lintadditions for more checks
#use MARC::Lintadditions;
#change file names as desired
my $inputfile = 'marcfile.mrc';
my $errorfilename = 'errors.txt';
my $errorcount = 0;
open (OUT, ">$errorfilename");
#initialize $infile as new MARC::Batch object
my $batch = MARC::Batch->new('USMARC', "$inputfile");
my $errorcount = 0;
#loop through batch file of records
while (my $record = $batch->next()) {
#if $record->field('001') #add this if some records in file do not contain an '001' field
my $controlno = $record->field('001')->as_string(); #call MARC::Errorchecks subroutines
my @errorstoreturn = ();
# check everything
push @errorstoreturn, (@{MARC::Errorchecks::check_all_subs($record)});
# or only a few
push @errorstoreturn, (@{MARC::Errorchecks::check_010($record)});
push @errorstoreturn, (@{MARC::Errorchecks::check_bk008_vs_bibrefandindex($record)});
# report results
if (@errorstoreturn){
#########################################
print OUT join( "\t", "$controlno", @errorstoreturn, "\t\n");
$errorcount++;
}
} #while
=head1 SEE ALSO
MARC::Record -- Required for this module to work.
MARC::Lint -- In the MARC::Record distribution and basis for this module.
MARC::Lintadditons -- Extension of MARC::Lint for checks involving individual tags.
(vs. cross-field checking covered in this module).
Available at
http://home.inwave.com/eija (and may be merged into MARC::Lint).
MARC pages at the Library of Congress (
http://www.loc.gov/marc)
Anglo-American Cataloging Rules, 2nd ed., 2002 revision, plus updates.
Library of Congress Rule Interpretations to AACR2R.
MARC Report (
http://www.marcofquality.com) -- More full-featured commercial program for validating MARC records.
=head1 LICENSE
This code may be distributed under the same terms as Perl itself.
Please note that this module is not a product of or supported by the
employers of the various contributors to the code.
=head1 AUTHOR
Bryan Baldus
[email protected]
Copyright (c) 2003-2012
=cut
