en:user:browsing
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en:user:browsing [2018/07/31 01:55] – [Additional resources] kjdon | en:user:browsing [2018/07/31 02:16] – [The hierarchy classifier] kjdon | ||
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- | ===== <!-- id:610 -->List classifiers ===== | + | ===== List classifiers ===== |
<!-- id:611 -->The various flavours of list classifier are shown below. | <!-- id:611 -->The various flavours of list classifier are shown below. | ||
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* <!-- id:615 -->// | * <!-- id:615 -->// | ||
- | ===== <!-- id:616 -->The hierarchy classifier ===== | + | ===== The hierarchy classifier ===== |
<!-- id:617 -->All classifiers are hierarchical. | <!-- id:617 -->All classifiers are hierarchical. | ||
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Hierarchy classifiers are more complex to specify than list classifiers. | Hierarchy classifiers are more complex to specify than list classifiers. | ||
- | < | + | The hierarchy is predefined in a file such as this sub.txt: |
< | < | ||
1 | 1 | ||
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- | <!-- id:619 -->The //hfile// argument gives the name of a file, like that in Figure <imgref figure_part_of_the_file_sub> | + | <!-- id:619 -->The //hfile// argument gives the name of a file, like sub.txt, which defines the metadata hierarchy. Each line describes one classification, |
* <!-- id:620 --> | * <!-- id:620 --> | ||
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* <!-- id:622 -->The name of the classification. (If this contains spaces, it should be placed in quotation marks.) | * <!-- id:622 -->The name of the classification. (If this contains spaces, it should be placed in quotation marks.) | ||
- | <!-- id:623 -->Figure <imgref figure_part_of_the_file_sub> | + | <!-- id:623 -->The file contents above are part of the //sub.txt// file used to create the subject hierarchy in the Development Library (and the Demo collection). This example is a slightly confusing one because the number representing the hierarchy appears twice on each line. The metadata type // |
<!-- id:624 -->The // | <!-- id:624 -->The // |
en/user/browsing.txt · Last modified: 2023/03/13 01:46 by 127.0.0.1