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MARC::Spec::Indicator(3pm) User Contributed Perl Documentation MARC::Spec::Indicator(3pm)

NAME

MARC::Spec::Indicator - indicator specification

SYNOPSIS

    use MARC::Spec::Indicator;
    
    my $indicator = MARC::Spec::Indicator->new('2');
    say ref $indicator;           # MARC::Spec::Indicator
    say $field->position;         # 2

DESCRIPTION

MARC::Spec::Indicator is the indicator specification of a MARC::Spec.

See MARCspec - A common MARC record path language <http://marcspec.github.io/MARCspec/> for further details on the syntax.

METHODS

new(Str)

Create a new MARC::Spec::Indicator instance. Parameter must be a valid MARCspec indicatorPosition.

add_subspec(MARC::Spec::Subspec)

Appends a subspec to the array of the attribute subspecs. Parameter must be an instance of MARC::Spec::Subspec.

add_subspecs(ArrayRef[MARC::Spec::Subspec])

Appends subspecs to the array of the attribute subspecs. Parameter must be an ArrayRef and elements must be instances of MARC::Spec::Subspec.

to_string

Returns the spec as a string.

PREDICATES

has_position

True if attribute position has an value and false otherwise.

has_subspecs

Returns true if attribute subspecs has an value and false otherwise.

ATTRIBUTES

Some attributes are inherited from MARC::Spec::Structure.

base

Obligatory. Scalar. The base Field spec without subspecs.

position

Obligatory. The indicator position.

subspecs

Optional. An array of instances of MARC::Spec::Subspec, thus all subspecs in this array MUST be validated as a combination with the boolean 'AND', and/or an array of arrays (AoA) of instances of MARC::Spec::Subspec, thus all subspecs in this AoA must be validated as a combination with the boolean 'OR'.

See MARC::Spec::Subspec for description of attributes of MARC::Spec::Subspec.

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::Subspec
  • MARC::Spec::Structure
  • MARC::Spec::Comparisonstring
  • MARC::Spec::Parser
2022-06-15 perl v5.34.0