Re: operations on path lists

[Emanuel Berg]

Jean Louis wrote:

>>> (cond ((file-directory-p file) (expand-file-name file))
>>>       (t nil))
>> 
>> (when (file-directory-p file)
>>   (expand-file-name file) )
>
> I am aware of it, I prefer using `cond' as I get
> more clarity.

The (t nil) part is of no use, even if you stick to `cond'.

  "If no clause succeeds, cond returns nil."

And: one COND, one branch or BODY - in idiomatic Lisp, that's
`when'.

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