29 lines
933 B
Text
29 lines
933 B
Text
|
#--------------------------------------------
|
||
|
|
# marc21: file(1) magic for MARC 21 Format
|
||
|
|
#
|
||
|
|
# Kevin Ford (kefo@loc.gov)
|
||
|
|
#
|
||
|
|
# MARC21 formats are for the representation and communication
|
||
|
|
# of bibliographic and related information in machine-readable
|
||
|
|
# form. For more info, see http://www.loc.gov/marc/
|
||
|
|
|
||
|
|
|
||
|
|
# leader position 20-21 must be 45
|
||
|
|
20 string 45
|
||
|
|
|
||
|
|
# leader starts with 5 digits, followed by codes specific to MARC format
|
||
|
|
>0 regex/1 (^[0-9]{5})[acdnp][^bhlnqsu-z] MARC21 Bibliographic
|
||
|
|
!:mime application/marc
|
||
|
|
>0 regex/1 (^[0-9]{5})[acdnosx][z] MARC21 Authority
|
||
|
|
!:mime application/marc
|
||
|
|
>0 regex/1 (^[0-9]{5})[cdn][uvxy] MARC21 Holdings
|
||
|
|
!:mime application/marc
|
||
|
|
0 regex/1 (^[0-9]{5})[acdn][w] MARC21 Classification
|
||
|
|
!:mime application/marc
|
||
|
|
>0 regex/1 (^[0-9]{5})[cdn][q] MARC21 Community
|
||
|
|
!:mime application/marc
|
||
|
|
|
||
|
|
# leader position 22-23, should be "00" but is it?
|
||
|
|
>0 regex/1 (^.{21})([^0]{2}) (non-conforming)
|
||
|
|
!:mime application/marc
|