| MARC::Spec::Subfield(3pm) | User Contributed Perl Documentation | MARC::Spec::Subfield(3pm) |
MARC::Spec::Subfield - subfield specification
use MARC::Spec;
my $ms = MARC::Spec->new('245$a/0-2);
say ref $ms->subfields; # ARRAY
say ref $ms->subfields->[0]; # MARC::Spec::Subfield
MARC::Spec::Subfield is the subfield specification of a MARC::Spec.
See MARCspec - A common MARC record path language <http://marcspec.github.io/MARCspec/> for further details on the syntax.
Some methods are inherited from MARC::Spec::Structure.
Create a new MARC::Spec::Subfield instance.
Appends a subspec to the array of the attribute subspecs. Parameter must be an instance of MARC::Spec::Subspec.
Inherited from MARC::Spec::Structure.
Appends subspecs to the array of the attribute subspecs. Parameter must be an ArrayRef and elements must be instances of MARC::Spec::Subspec.
Inherited from MARC::Spec::Structure.
Returns the spec as a string.
Inherited from MARC::Spec::Structure.
Some predicates are inherited from MARC::Spec::Structure.
True if attribute char_start has an value and false otherwise.
True if attribute char_end has an value and false otherwise.
True if attribute char_pos has an value and false otherwise.
Returns true if attribute subspecs has an value and false otherwise.
Some attributes are inherited from MARC::Spec::Structure.
Obligatory. The base Subfield spec without subspecs.
Obligatory. The subfield code.
If defined, the character position or range. Only present if MARC::Spec::Subfield::$char_start is defined.
If defined, the beginning character position of a character position or range.
If defined, the ending character position of a character position or range. Only present if MARC::Spec::Subfield::$char_start is defined.
The difference of MARC::Spec::Subfield::$char_start and MARC::Spec::Field::$char_end if both are numeric (or else -1). Only present if MARC::Spec::Subfield::$char_start is defined.
Obligatory. The beginning index of subfield repetitions. Maybe a positiv integer or the character '#'. Default is 0.
Obligatory. The ending index of subfield repetitions. Maybe a positiv integer or the character '#'. Default is '#'.
Obligatory. The difference of MARC::Spec::Subfield::$index_start and MARC::Spec::Subfield::$index_end if both are numeric. Default is -1.
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.
Carsten Klee "<klee at cpan.org>"
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.
Please report any bugs to <https://github.com/MARCspec/MARC-Spec/issues>
| 2022-06-15 | perl v5.34.0 |