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Re: Re: Command to get a notebook's directory?

• To: mathgroup at smc.vnet.net
• Subject: [mg23011] Re: [mg22978] Re: [mg22927] Command to get a notebook's directory?
• From: "Jordan Rosenthal" <jr at ece.gatech.edu>
• Date: Tue, 11 Apr 2000 23:18:29 -0400 (EDT)
• Organization: Georgia Institute of Technology, Atlanta GA, USA
• References: <8crruh$1vt@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

John,

Thanks for the clear explanation.  In light of your comments, I will stick
to using NotebookInformation (and I'll never wind up using it in an unsaved
notebook so that is not a problem for me.)

Thanks,

Jordan


"John Fultz" <jfultz at wolfram.com> wrote in message
news:8crruh$1vt at smc.vnet.net...
> Yes, an approach using NotebookDirectory is incorrect and would cause
> bugs with certain usage patterns.
>
> NotebookDirectory gets a global option in the front end.  This global
> option is set every time you use the File->Open... command to open
> a notebook and happens to be set to the directory to which you last
> opened (or saved using Save As...) a notebook file.  This, however, is
> not necessarily the same thing as the directory in which a particular
> notebook exists.
>
> Example...
>   You open up c:\dir1\notebook1.nb using File->Open...
> NotebookDirectory will be set to c:\dir1
>   You open up c:\dir2\notebook2.nb using File->Open...
> NotebookDirectory will be set to c:\dir2
>
> Now, you want to know the notebook that notebook1.nb (still open) resides
> in.  You can only get that information via NotebookInformation.
>
> Note that you can also open up a notebook in such a way as to not even
> set the NotebookDirectory option.  For example, if you open a notebook
> in the File->Notebooks menu (which records recently opened notebooks),
> the NotebookDirectory option will not be set.
>
> Now, on the other hand, you have to keep in mind that
> NotebookInformation[] will not always return a "FileName" option.  It will
> only do so if the notebook has been given a name (i.e. saved to disk).
> If you evaluate NotebookInformation[] in a new notebook, no "FileName"
> option will be returned.
>
> Sincerely,
>
> John Fultz
> jfultz at wolfram.com
> User Interface Group
> Wolfram Research, Inc.
>
>
> > Adalbert/John,
> >
> > Thanks to both of you for your reply.   Between the time I wrote my
message
> > and the time you replied I also (after quite a bit of time!) came up
with
> > the following
> >
> >   ToFileName[ NotebookDirectory /. Options[$FrontEnd,
> > NotebookDirectory][[1]] ]
> >
> > Since you both used the NotebookInformation[] function, I am wondering
if
> > there is any reason my approach may be buggy.  Is there any hidden
problems
> > in doing it my way?
> >
> > Thanks,
> >
> > Jordan
> >
> > "Adalbert Hanssen" <hanssen at zeiss.de> wrote in message
> > news:8ck0rd$g59 at smc.vnet.net...
> > > Hi,
> > >
> > > according to [mg20941], the solution is
> > >
> > > ToFileName[First["FileName" /.
> > >                   NotebookInformation[EvaluationNotebook[]]
> > >                 ] /. $RootDirectory->""
> > >           ]
> > >
> > > greetings
> > >
> > > Adalbert
> > >
> >
> >
> >
>
>