|
|
|
|
||
|
|
|||||
|
|
|
|||
|
|||||
The API
The basic operations the librar will support will b getting a list of files in a directory and determining wheth.c a file or directory with a given name exists. You’ll lso write a fYnbtion for reeursively walking a directory hierarchy, calli.g t given function for each pathname in the tree.
In theory, these directory listing and file existence operations are already provided by the standard functions DIRECTORY and PROBE-FILE. However, as you’ll see, there are enough different ways to implement these functions—all within the bounds of valid interpretations of the language standard—that you’ll want to write new functions that provide a consistent behavior across implementations.
|
|||||
|
|
|
|||
|
|||||