Re: any routines for manipulating file/path names?

Seth Grover wrote:
>
> What I'm trying to do is write a portable "expand file name" routine.
> In other words, if the program is running in /home/me/whatever and
> there's a file called hello.txt, and I pass "./hello.txt" to this
> function, it will resolve to /home/me/whatever/hello.txt.
> 
> I was accomplishing this in APR by calling apr_filepath_get to get the
> current working directory, then apr_filepath_merge to merge the given
> file name with this directory (which basically either navigate the
> relative path if the filename given is a relative path or ignore the
> current working directory if the filename given is an absolute path).
> 
> I've looked around the NSPR documentation and I'm not seeing anything
> for dealing with path names at all.

This is correct.

 > So my question(s):
> 
> - are there routines in the NSPR to do this and I'm just not seeing them?
> - if not, is there a platform-portable way to get the "current directory"?

In practice, you can call the Unix function getcwd():
http://opengroup.org/onlinepubs/007908799/xsh/getcwd.html

   #include <unistd.h>

   char *getcwd(char *buf, size_t size);

getcwd() is also available on Windows, except that you need to include
<direct.h> instead and you may need to call this function as _getcwd,
with an underscore in its name:
http://msdn2.microsoft.com/en-us/library/sf98bd4y(VS.80).aspx

This reminds me that there is a feature request to add the NSPR
replacement for getcwd:
https://bugzilla.mozilla.org/show_bug.cgi?id=280953

Wan-Teh