El jue, 17-09-2009 a las 16:44 +0200, Bert Freudenberg escribió:
> On 17.09.2009, at 08:07, Miguel Enrique Cobá Martinez wrote:
> 
> > El mié, 16-09-2009 a las 22:49 -0700, Randal L. Schwartz escribió:
> >>>>>>> "Miguel" == Miguel Enrique Cobá Martinez  
> >>>>>>> <miguel.coba at gmail.com> writes:
> >>
> >> Miguel> Thanks Andreas, but this line outputs a string with the  
> >> resolved
> >> Miguel> absolute path. That is ok but not what I need. I need a  
> >> FileDirectory
> >> Miguel> object built from a string containing a relative unix path.
> >>
> >> The *real* question is are you dealing with abstract paths, or real
> >> disks that might have symlinks.
> >>
> >> The problem comes about when you ask to reduce:
> >>
> >>    /xxx/yyy/../zzz
> >>
> >> for which, if "yyy" was made with "ln -s /aaa/bbb /xxx/yyy",
> >> then the proper answer is:
> >>
> >>    /aaa/zzz
> >>
> >> Yeah.  You can't just look at the text of the string to reduce it.   
> >> You have
> >> to ask the operating system where the heck you are.
> >>
> >> So again, are you dealing with abstract paths that will *never* go  
> >> near
> >> a filesystem, or are you dealing with an *actual* filesystem?   And
> >> answer carefully, for if you answer wrong, you will be burned.
> >>
> >
> > Good points.
> > I didn't think about those factors. I just have a setup like this:
> >
> > dirA
> > |-->dirB/squeak.image
> > |-->dirC/directory
> >
> > and from squeak.image wanted to pass a FileDirectory parameter to a
> > method using the relative path:
> >
> > '../dirC/directory'
> >
> > and not having the image a hardcoded path to the dirC/directory.
> >
> > The lines that I found, and also the line that Andreas provided both
> > work. It is just that I wanted to know if there were a shorter, more
> > concise way, something along the lines:
> >
> > FileDirectory on: '../dirC/directory/'.
> >
> > But hey, the code works, it is just two lines instead of one.
> > Thanks
> 
> The canonical and portable way would be
> 
> (FileDirectory default containingDirectory directoryNamed: 'dirC')  
> directoryNamed: 'directory'
> 
> - Bert -

Thanks Bert


> 
> 
-- 
Miguel Cobá
http://miguel.leugim.com.mx