NAME

       Catmandu::Fix::marc_set - set a marc value of one (sub)field to a new value

SYNOPSIS

           # Set a field in the leader
           if marc_match('LDR/6','c')
               marc_set('LDR/6','p')
           end

           # Set a control field
           marc_set('001',1234)

           # Set all the 650-p fields to 'test'
           marc_set('650p','test')

           # Set the 100-a subfield where indicator-1 is 3
           marc_set('100[3]a','Farquhar family.')

           # Copy data from another field in a subfield
           marc_set('100a','$.my.deep.field')

DESCRIPTION

       Set the value of a MARC subfield to a new value.

METHODS

   marc_set(MARC_PATH , VALUE)
       Set a MARC subfield to a particular new value. This value can be a literal or reference an
       existing field in the record using the dollar JSON_PATH syntax.

INLINE

       This Fix can be used inline in a Perl script:

           use Catmandu::Fix::marc_set as => 'marc_set';

           my $data = { record => [...] };

           $data = marc_set($data, '245a', 'test');

SEE ALSO

       Catmandu::Fix::marc_add, Catmandu::Fix::marc_copy, Catmandu::Fix::marc_cut,
       Catmandu::Fix::marc_paste