NAME

       Catmandu::Validator::MARC - Validate MARC records against a MARC21 Schema

SYNOPSIS

       In Perl code:

           use Catmandu::Validator::MARC;
           Catmandu::Validator::MARC;
           use DDP;

           # load default MARC schema
           my $validator = Catmandu::Validator::MARC->new();

           # ... or load custom MARC schema
           my $validator = Catmandu::Validator::MARC->new( schema => 'schema.json' );

           my $importer = Catmandu::Importer::MARC->new(
               file => 't/camel.mrc',
               type => "ISO"
           );

           $importer->each( sub {
               my $record = shift;
               unless($validator->validate($record)){
                   p $_ for @{$validator->last_errors()};
               }
           });

       In Catmandu Fix language:

           # reject all items not conforming to the default MARC schema
           select valid(., MARC)
           # reject all items not conforming to a custom MARC schema
           select valid(., MARC, schema: 'schema.json')

DESCRIPTION

       This Catmandu::Validator can be used to check MARC records against an MARC21 schema. For
       more information see MARC::Schema and "MARC21 structure in JSON"
       <https://pkiraly.github.io/2018/01/28/marc21-in-json/>.

       See also Catmandu::Fix::validate, and Catmandu::Fix::Condition::valid for usage of
       validators in Catmandu Fix language.

CONFIGURATION

       schema
           MARC Schema given as filename (JSON) or instance of MARC::Schema.

       ignore_unknown_fields
           Don't report fields not included in the schema.

       ignore_unknown_subfields
           Don't report subfields not included in the schema.

AUTHOR

       Johann Rolschewski,  <jorol at cpan>