NAME

MARC::Spec::Subspec - subspec specification

SYNOPSIS

    use MARC::Spec;
    use MARC::Spec::Subspec;
    use MARC::Spec::Comparisonstring;
    
    # create an empty subspec
    my $subspec = MARC::Spec::Subspec->new;
    
    # create the subterms
    my $ms  = MARC::Spec::parse('245$a')';
    my $cmp = MARC::Spec::Comparisonstring->new('Perl');
    
    # add subterms to subspec
    $subspec->left($ms);
    $subspec->right($cmp);
    $subspec->operator('=');
    
    say $subspec->subterms;     # '245$a=\Perl'

DESCRIPTION

MARC::Spec::Subspec is the subspec specification of a MARC::Spec.

See MARCspec - A common MARC record path language for further details on the syntax.

METHODS

new

Create a new MARC::Spec::Subspec instance.

to_string

Returns the spec as a string.

ATTRIBUTES

left

Obligatory. The left subterm: a MARCspec as a string.

right

Obligatory. The right subterm: a MARCspec as a string.

operator

One of "=", "!=", "~", "!~", "!", or "?". Default is "?".

AUTHOR

Carsten Klee <klee at cpan.org>

CONTRIBUTORS

• Johann Rolschewski, <jorol at cpan>

COPYRIGHT AND LICENSE

This software is copyright (c) 2016 by Carsten Klee.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

BUGS

Please report any bugs to https://github.com/MARCspec/MARC-Spec/issues

SEE ALSO

MARC::Spec, MARC::Spec::Field, MARC::Spec::Subfield, MARC::Spec::Structure, MARC::Spec::Comparisonstring, MARC::Spec::Parser