FileManipulation
- To: mathgroup at smc.vnet.net
- Subject: [mg14987] FileManipulation
- From: Jason Gill <jgill at vbimail.champlain.edu>
- Date: Wed, 2 Dec 1998 03:59:07 -0500
- Organization: IBM Microelectronics
- Sender: owner-wri-mathgroup at wolfram.com
I encountered an interesting behavior running 3.1 on Win 95. When using
the functions filenames to generate a list of files and then attempting
to use that list within a function results in a "out to lunch error".
The example I am using is
In:
all = FileNames[*,$HomeDirectory,1]; Out:
{c:\\95drive,c:\\autoexec.bat, etc.} However attempting to
Map[FileType,all]
sends the kernel out never to return.
On futher investigation,
In:
FullForm[all[[1]]]
Out:
"c:\\\\95drive"
It appears that Mathematica perpetually adds backslashes. That is if I
take the a original version of "all" and manually stirp away the second
backslash, Mapping FileType works as expected. I am not sure what is
causing this behavior, or how to correct it without manually removing
the extra backslash in FileNames.
I suspect I am not describing the problem very clearly, but the problem
is based on an example Given in the Mathematica book, page 15, where I
have substituted FileType for FileByteCount.
Anyways, It is not a very critical application, I was just wondering if
anyone else has encountered it, or more importantly why is it doing it?
Thanks,
Jason