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/usr/bin/marclint is in libmarc-lint-perl 1.44-1.

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#!/usr/bin/perl -w

eval 'exec /usr/bin/perl -w -S $0 ${1+"$@"}'
    if 0; # not running under some shell



=head1 NAME



marclint - MARC record linting utility



=head1 SYNOPSIS



B<marclint> [options] file(s)



=over 4



=item options



=over 4



=item --help



Print a summary of commands



=item --[no]stats



Print a statistical summary by file at the end.  (Default: on)



=back



=back



=cut



use strict;

use integer;



use MARC::File::USMARC;

use MARC::Lint;

use Getopt::Long;



use constant USAGE => <<"END";

Usage: marclint [options] file(s)

    options

        --help

            Print a summary of commands

        --version

            Print version

        --[no]quiet

            Suppress status messages

        --[no]stats

            Print a statistical summary by file at the end

END



my $stats = 1;

my $help = 0;

my $quiet = 0;



my $rc = GetOptions(

    "stats!" => \$stats,

    "quiet!" => \$quiet,

    "help"   => \$help,

    "version"   => sub { print "$0, using MARC::Record v$MARC::Record::VERSION\n"; exit 1; },

    );



my @files = @ARGV;



die USAGE if $help or (not $rc) or (@files == 0);



my $linter = new MARC::Lint;

my %counts;

my %errors;



for my $filename ( @files ) {

    $counts{$filename} = 0;

    $errors{$filename} = 0;



    my $file = MARC::File::USMARC->in( $filename ) or die $MARC::File::ERROR;

    warn "$filename\n" unless $quiet;



    while ( my $marc = $file->next() ) {

        if ( not $marc ) {

            warn $MARC::Record::ERROR;

            ++$errors{$filename};

        } else {

            ++$counts{$filename};

        }



        #store warnings in @warningstoreturn

        my @warningstoreturn = ();



        #retrieve any decoding errors

        #get any warnings from decoding the raw MARC

        push @warningstoreturn, $marc->warnings();



        $linter->check_record( $marc );



        #add any warnings from MARC::Lint

        push @warningstoreturn, $linter->warnings;



        if ( @warningstoreturn ) {

            print join( "\n",

                $marc->title,

                @warningstoreturn,

                "",

                "",

            );

            ++$errors{$filename};

        }

    } # while

    $file->close();

} # for 



if ( $stats ) {

    print "\n\n";

    print " Recs  Errs Filename\n";

    print "----- ----- --------\n";

    for my $key ( sort keys %counts ) {

        printf( "%5d %5d %s\n", $counts{$key}, $errors{$key}, $key );

    } # for

} # if stats