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.\" ========================================================================
.\"
.IX Title "MARC::Spec 3pm"
.TH MARC::Spec 3pm "2018-01-12" "perl v5.26.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
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.SH "NAME"
MARC::Spec \- A MARCspec parser and builder
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& use MARC::Spec;
\&
\& # Parsing MARCspec from a string
\& my $ms = MARC::Spec::parse(\*(Aq246[0\-1]$f{245$h~\e[microform\e]|245$h~\emicrofilm}\*(Aq);
\&
\& # Structure
\& say ref $ms; # MARC::Spec
\& say ref $ms\->field; # MARC::Spec::Field
\& say ref $ms\->subfields; # ARRAY
\& say ref $ms\->subfields\->[0]; # MARC::Spec::Subfield
\& say ref $ms\->subfields\->[0]\->subspecs; # ARRAY
\& say ref $ms\->subfields\->[0]\->subspecs\->[0]; # ARRAY
\& say ref $ms\->subfields\->[0]\->subspecs\->[0]\->[1]; # MARC::Spec::Subspec
\& say ref $ms\->subfields\->[0]\->subspecs\->[0]\->[1]\->left; # MARC::Spec
\& say ref $ms\->subfields\->[0]\->subspecs\->[0]\->[1]\->right; # MARC::Spec::Comparisonstring
\&
\& # Access to attributes
\& say $ms\->field\->base; # 246[0\-1]
\& say $ms\->field\->tag; # 246
\& say $ms\->field\->index_start; # 0
\& say $ms\->field\->index_end; # 1
\& say $ms\->field\->index_length; # 2
\& say $ms\->subfields\->[0]\->base; # \*(Aqf[0\-#]\*(Aq
\& say $ms\->subfields\->[0]\->code; # \*(Aqf\*(Aq
\& say $ms\->subfields\->[0]\->index_start; # 0
\& say $ms\->subfields\->[0]\->index_end; # \*(Aq#\*(Aq
\& say $ms\->subfields\->[0]\->subspecs\->[0]\->[0]\->subterms; # \*(Aq245$h~\e[microform\e]\*(Aq
\& say $ms\->subfields\->[0]\->subspecs\->[0]\->[0]\->left\->field\->tag; # 245
\& say $ms\->subfields\->[0]\->subspecs\->[0]\->[0]\->left\->field\->index_length; # \-1
\& say $ms\->subfields\->[0]\->subspecs\->[0]\->[0]\->left\->subfields\->[0]\->code; # \*(Aqh\*(Aq
\& say $ms\->subfields\->[0]\->subspecs\->[0]\->[0]\->right\->comparable; # \*(Aq[microform]\*(Aq
\& say $ms\->subfields\->[0]\->subspecs\->[0]\->[1]\->right\->comparable; # \*(Aqmicrofilm\*(Aq
\&
\& # creating MARCspec from scratch
\& my $field = MARC::Spec::Field\->new(\*(Aq245\*(Aq);
\& my $subfield = MARC::Spec::Subfield\->new(\*(Aqa\*(Aq);
\& my $spec = MARC::Spec\->new($field);
\& $spec\->add_subfield($subfield);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
MARC::Spec is a MARCspec \- A common \s-1MARC\s0 record path language parser and builder.
.SH "FUNCTIONS"
.IX Header "FUNCTIONS"
.SS "parse(Str)"
.IX Subsection "parse(Str)"
Parses a MARCspec as string and returns an instance of MARC::Spec.
.SH "METHODS"
.IX Header "METHODS"
.SS "new(MARC::Spec::Field)"
.IX Subsection "new(MARC::Spec::Field)"
Create a new MARC::Spec instance. Parameter must be an instance of MARC::Spec::Field.
.SS "add_subfield(MARC::Spec::Subfield)"
.IX Subsection "add_subfield(MARC::Spec::Subfield)"
Appends a subfield to the array of the attribute subfields. Parameter must be an instance of
MARC::Spec::Subfield.
.SS "add_subfields(ArrayRef[MARC::Spec::Subfield])"
.IX Subsection "add_subfields(ArrayRef[MARC::Spec::Subfield])"
Appends subfields to the array of the attribute subfields. Parameter must be an ArrayRef and
elements must be instances of MARC::Spec::Subfield.
.SH "PREDICATES"
.IX Header "PREDICATES"
.SS "has_subfields"
.IX Subsection "has_subfields"
Returns true if attribute subfields has an value and false otherwise.
.SS "has_indicator"
.IX Subsection "has_indicator"
Returns true if attribute indicator has an value and false otherwise.
.SH "ATTRIBUTES"
.IX Header "ATTRIBUTES"
.SS "field"
.IX Subsection "field"
Obligatory. Attribute field is an instance of MARC::Spec::Field.
.SS "subfields"
.IX Subsection "subfields"
If defined, subfields is an array of instances of MARC::Spec::Subfield.
.SS "indicator"
.IX Subsection "indicator"
If defined, indicator is an instance of MARC::Spec::Indicator.
.SH "AUTHOR"
.IX Header "AUTHOR"
Carsten Klee \f(CW\*(C`\*(C'\fR
.SH "CONTRIBUTORS"
.IX Header "CONTRIBUTORS"
.IP "\(bu" 4
Johann Rolschewski, \f(CW\*(C`\*(C'\fR
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
This software is copyright (c) 2016 by Carsten Klee.
.PP
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
.SH "BUGS"
.IX Header "BUGS"
Please report any bugs to
.SH "SEE ALSO"
.IX Header "SEE ALSO"
.IP "\(bu" 4
MARC::Spec::Field
.IP "\(bu" 4
MARC::Spec::Subfield
.IP "\(bu" 4
MARC::Spec::Indicator
.IP "\(bu" 4
MARC::Spec::Subspec
.IP "\(bu" 4
MARC::Spec::Structure
.IP "\(bu" 4
MARC::Spec::Comparisonstring
.IP "\(bu" 4
MARC::Spec::Parser