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Re: [PATCH] Add "scandir" procedure
From: |
Ludovic Courtès |
Subject: |
Re: [PATCH] Add "scandir" procedure |
Date: |
Sat, 10 Dec 2011 15:52:46 +0100 |
User-agent: |
Gnus/5.110018 (No Gnus v0.18) Emacs/24.0.90 (gnu/linux) |
Hi,
Andy Wingo <address@hidden> skribis:
> On Tue 30 Aug 2011 18:06, address@hidden (Ludovic Courtès) writes:
>
>> I was actually planning to push ‘file-system-fold’, a functional
>> alternative to ‘ftw’, which would be along the lines of this (from
>> <http://git.savannah.gnu.org/cgit/libchop.git/tree/utils/chop-backup#n46>):
>>
>> (define (file-system-fold enter? leaf down up skip init file-name)
>> "Traverse the directory at FILE-NAME, recursively. Enter sub-directories
>> only when (ENTER? PATH STAT RESULT) returns true. When a sub-directory is
>> entered, call (DOWN PATH STAT RESULT), where PATH is the path of the
>> sub-directory and STAT the result of (lstat PATH); when it is left, call
>> (UP
>> PATH STAT RESULT). For each file in a directory, call (LEAF PATH STAT
>> RESULT). Return the result of these successive applications. When ENTER?
>> returns no, call (SKIP PATH STAT RESULT)."
>>
>> ...)
>
> I see that you haven't pushed this yet. Want to do so?
Yes, I’m looking into this now.
I was planning to make it part of (ice-9 ftw); WDYT?
If there’s anything else you’d like to discuss about the API or
implementation, please let me know.
> I would be happy with a `scandir' implementation on top of this
> interface.
Yes. The mixture of concerns in that function is not brilliant, but
OTOH it’s probably good to have a function people are familiar with.
Thanks,
Ludo’.