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#-------------------------------------------- |
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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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# and 22-23 also 00 so far, but we check that later. |
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20 string 45 |
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>0 search/2048 \x1e |
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|
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# leader starts with 5 digits, followed by codes specific to MARC format |
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>>0 regex/1l (^[0-9]{5})[acdnp][^bhlnqsu-z] MARC21 Bibliographic |
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!:mime application/marc |
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>>0 regex/1l (^[0-9]{5})[acdnosx][z] MARC21 Authority |
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!:mime application/marc |
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>>0 regex/1l (^[0-9]{5})[cdn][uvxy] MARC21 Holdings |
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!:mime application/marc |
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>>0 regex/1l (^[0-9]{5})[acdn][w] MARC21 Classification |
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!:mime application/marc |
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>>0 regex/1l (^[0-9]{5})[cdn][q] MARC21 Community |
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!:mime application/marc |
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|
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# leader position 22-23, should be "00" but is it? |
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>>0 regex/1l (^.{21})([^0]{2}) (non-conforming) |
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!:mime application/marc |
