Pathnames allow you to work with hierarchical, structured pathnames in
a reasonably portable fashion.
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pathname-to-components | (pathname|<str> => <lst>) | M |
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| given a pathname, split it into a list of individual directories, etc.
Three special values are returned as symbols:
- root -> This path starts in the root directory
- up -> Go up a directory
- current -> Remain in the current directory
Volume labels, drive letters, and other non-path information should
be stored in a single tagged list at the head.
Note that the hierarchical portion of this pathname (everything but the
label) must be non-empty at all times. | |
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components-to-pathname | (components|<lst> => <str>) | M |
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| reassemble components created by the above function. | |
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label-components | (components|<lst> => <lst>) | M |
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| get any leading directory label. | |
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hierarchical-components | (components|<lst> => <lst>) | M |
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| get rid of any leading directory label, etc. | |
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components-last | (components|<lst> => <any>) | M |
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| return the last item in a list of components. | |
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components-basename | (components|<lst> => <lst>) | M |
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| return all but the last item of a bunch of components.
Do some magic to handle cases like 'foo.txt' => './'
If you call this function enough times, you are eventually
guaranteed to get components list ending in root, up or current.
Requires the last item to be a string. | |
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components-parent-directory | (components|<lst> => <lst>) | M |
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| calculate the parent directory of a pathname. | |
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