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