* feature request: realpath
@ 2017-06-03 17:20 j kalbhenn
2017-06-04 20:00 ` Alex Kost
0 siblings, 1 reply; 6+ messages in thread
From: j kalbhenn @ 2017-06-03 17:20 UTC (permalink / raw)
To: guile-devel
guile does not offer "realpath", which is part of the posix standard as far as i can tell. http://pubs.opengroup.org/onlinepubs/9699919799/
i think this would be useful to have and it does not seem trivial to re-implement in scheme.
one of my use cases would be finding the first matching load path for a full path which might not contain any of the load paths exactly.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: feature request: realpath
2017-06-03 17:20 feature request: realpath j kalbhenn
@ 2017-06-04 20:00 ` Alex Kost
2017-06-04 21:36 ` j kalbhenn
0 siblings, 1 reply; 6+ messages in thread
From: Alex Kost @ 2017-06-04 20:00 UTC (permalink / raw)
To: j kalbhenn; +Cc: guile-devel
j kalbhenn (2017-06-03 17:20 +0000) wrote:
> guile does not offer "realpath", which is part of the posix standard as
> far as i can tell. http://pubs.opengroup.org/onlinepubs/9699919799/
Guile provides "readlink". Isn't it the thing you need?
--
Alex
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: feature request: realpath
2017-06-04 20:00 ` Alex Kost
@ 2017-06-04 21:36 ` j kalbhenn
2017-06-05 19:47 ` Alex Kost
0 siblings, 1 reply; 6+ messages in thread
From: j kalbhenn @ 2017-06-04 21:36 UTC (permalink / raw)
To: Alex Kost; +Cc: guile-devel
> Guile provides "readlink". Isn't it the thing you need?
no, i am afraid not. readlink returns the target of a symbolic link. realpath resolves all directory references like ".." and "." and all symbolic links in a path and returns a path that does not include those things.
i have now implemented my own version of realpath in scheme (could have used the ffi probably), but since it is a standard lib function in C and guile offers many other posix functions, i thought it would be well suited for inclusion.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: feature request: realpath
2017-06-04 21:36 ` j kalbhenn
@ 2017-06-05 19:47 ` Alex Kost
2017-06-06 13:33 ` J. Kalbhenn
0 siblings, 1 reply; 6+ messages in thread
From: Alex Kost @ 2017-06-05 19:47 UTC (permalink / raw)
To: j kalbhenn; +Cc: guile-devel
j kalbhenn (2017-06-04 21:36 +0000) wrote:
>> Guile provides "readlink". Isn't it the thing you need?
>
> no, i am afraid not. readlink returns the target of a symbolic
> link. realpath resolves all directory references like ".." and "." and
> all symbolic links in a path and returns a path that does not include
> those things.
Oh, I see. There is 'canonicalize-path' that can handle ".." and "."
> i have now implemented my own version of realpath in scheme (could have
> used the ffi probably), but since it is a standard lib function in C and
> guile offers many other posix functions, i thought it would be well
> suited for inclusion.
Yeah, I agree, I also expected to see 'realpath' in Guile :-)
--
Alex
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2017-06-06 17:48 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
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2017-06-03 17:20 feature request: realpath j kalbhenn
2017-06-04 20:00 ` Alex Kost
2017-06-04 21:36 ` j kalbhenn
2017-06-05 19:47 ` Alex Kost
2017-06-06 13:33 ` J. Kalbhenn
2017-06-06 17:48 ` Alex Kost
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