Catman...r::MARC(3pm)

💅 NAME 💅

Catmandu::Validator::MARC — bestie, this is the validator that checks your MARC records against a MARC21 Schema ✨

(also hi, this is the manual page for Catmandu::Validator::MARC, living in section 3pm of the User Contributed Perl Documentation, and it's giving very much "let's validate some records" energy 🎀)

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🌸 SYNOPSIS 🌸

Ok so first, the Perl code way:

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()};
    }
});

And then, the Catmandu Fix language way (iykyk 🫶):

# 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')

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🦋 DESCRIPTION 🦋

So this Catmandu::Validator is literally here to check MARC records against an MARC21 schema. Obsessed, honestly. 💖

If you want more info, go look at MARC::Schema and the writeup "MARC21 structure in JSON" at <https://pkiraly.github.io/2018/01/28/marc21-in-json/>.

Also!! If you're wondering how to actually use validators in Catmandu Fix language, check out Catmandu::Fix::validate and Catmandu::Fix::Condition::valid — those are your girls 💅

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🎀 CONFIGURATION 🎀

• schema — the MARC Schema, bestie! You can pass it as a filename (JSON) or as an instance of MARC::Schema. Your choice, both slay ✨
• ignore_unknown_fields — don't report fields that aren't included in the schema. Live your truth, ignore them 🙈
• ignore_unknown_subfields — don't report subfields that aren't included in the schema. Same vibe, but subfields 💜

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👑 AUTHOR 👑

Johann Rolschewski, <jorol at cpan> 🫶

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okay and that's the whole page, no cap — written by perl v5.38.2, dated 2024-08-03, from the Catmandu::Validator::MARC(3pm) page in the User Contributed Perl Documentation. validate responsibly, bestie 💖✨