lib/berkeley_library/tind/mapping/misc.rb
# get the 880 referred tag.
# An example $6 value: '650-05/$1', referred tag is 650
get the 880 referred tag.
get the 880 referred tag .
def referred_tag(field)
          return nil unless subfield6?(field)
          field['6'].strip.split('-')[0]
        end
def referred_tag ( field ) return nil unless subfield6? ( field ) field [ '6' ] . strip . split ( '-' ) [ 0 ] end
get the 880 referred tag.
get the 880 referred tag .
field
<not_specific>