delete-file ??

delete-file ??

[Bruce Korb]

Hi,

Programming successfully is a task involving keeping track of
a myriad of minutia and fitting all the little pieces together.
Anything that reduces the amount of information that one needs
to track is a good thing.  The Guile library supports POSIX
calls with POSIX-ly named functions.  Excellent.  I only need
to learn one set of names and figure out some mostly obvious
permutations to use the Guile function for the POSIX call.
So, despite the fact that "delete-file" is far more obvious
than "unlink", the rename increases the complexity of my
programming life.  I had to find "delete-file" by grepping
the source for "unlink *\(".  Ick.  Please consider adding
"unlink" and any other POSIX calls that got renamed.
Thanks.

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Re: delete-file ??

[Rob Browning]

Bruce Korb <bkorb@pacbell.net> writes:

> Programming successfully is a task involving keeping track of
> a myriad of minutia and fitting all the little pieces together.
> Anything that reduces the amount of information that one needs
> to track is a good thing.  The Guile library supports POSIX
> calls with POSIX-ly named functions.  Excellent.  I only need
> to learn one set of names and figure out some mostly obvious
> permutations to use the Guile function for the POSIX call.
> So, despite the fact that "delete-file" is far more obvious
> than "unlink", the rename increases the complexity of my
> programming life.  I had to find "delete-file" by grepping
> the source for "unlink *\(".  Ick.  Please consider adding
> "unlink" and any other POSIX calls that got renamed.

That sounds like a good idea to me, though we might need another
function.  I'm not sure what the error/return semantics of delete-file
are -- docs don't say, and whatever's bound to unlink should follow
the current guile posix conventions...

-- 
Rob Browning
rlb @defaultvalue.org, @linuxdevel.com, and @debian.org
Previously @cs.utexas.edu
GPG=1C58 8B2C FB5E 3F64 EA5C  64AE 78FE E5FE F0CB A0AD

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Re: delete-file ??

[Bruce Korb]

Rob Browning wrote:

> That sounds like a good idea to me, though we might need another
> function.  I'm not sure what the error/return semantics of delete-file...

Read the source, Luke :-(

> SCM_DEFINE (scm_delete_file, "delete-file", 1, 0, 0, 
>            (SCM str),
>   "Deletes (or \"unlinks\") the file specified by @var{path}.")
> #define FUNC_NAME s_scm_delete_file
> {
>   int ans;
>   SCM_VALIDATE_STRING (1, str);
>   SCM_SYSCALL (ans = unlink (SCM_STRING_CHARS (str)));
>   if (ans != 0)
>     SCM_SYSERROR;
>   return SCM_UNSPECIFIED;
> }
> #undef FUNC_NAME

You're right:

> SCM_DEFINE (scm_unlink, "unlink", 1, 0, 0, 
>            (SCM path),
>   "Unlinks (or \"deletes\") the file specified by @var{path}.")
> #define FUNC_NAME s_scm_unlink
> {
>   int ans;
>   SCM_VALIDATE_STRING (1, path);
>   SCM_SYSCALL (ans = unlink (SCM_STRING_CHARS (path)));
>   return gh_int2scm( ans );
> }
> #undef FUNC_NAME
>
> SCM_DEFINE (scm_delete_file, "delete-file", 1, 0, 0, 
>            (SCM path),
>   "Deletes (or \"unlinks\") the file specified by @var{path}.")
> #define FUNC_NAME s_scm_delete_file
> {
>   SCM res = scm_unlink( path );
>   return (gh_scm2int( res ) != 0) ? SCM_SYSERROR : SCM_UNSPECIFIED;
> }
> #undef FUNC_NAME

And, yes, I know "gh_*" is deprecated.  I'm sure you can fix it.

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Re: delete-file ??

[Rob Browning]

Bruce Korb <bkorb@pacbell.net> writes:

>> That sounds like a good idea to me, though we might need another
>> function.  I'm not sure what the error/return semantics of
>> delete-file...
>
> Read the source, Luke :-(

Umm.  I would have except that it was 1AM here, and I was kinda tired,
having been working since the previous morning.  I made that comment
intending it to be a heads up for anyone else who felt like looking in
to the issue sooner.

-- 
Rob Browning
rlb @defaultvalue.org, @linuxdevel.com, and @debian.org
Previously @cs.utexas.edu
GPG=1C58 8B2C FB5E 3F64 EA5C  64AE 78FE E5FE F0CB A0AD

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