From:	"Gary Hubbard" <me AT lbl DOT gov>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Command line wildcard expansion under Win2K
Date:	Wed, 29 Jan 2003 09:50:16 -0800
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To:	djgpp AT delorie DOT com
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Reply-To:	djgpp AT delorie DOT com

The wildcard expansion is certainly not doing what I would expect.  I tried
looking at the source and in the few minutes I have at the moment could not
really make sense of the case sensitivity logic. Clearly the environment
variable FNCASE is involved somehow.  As near as I can determine
empirically, setting FNCASE=N (the defaults neems to be Y), cause the
matches to be case insensitive at the price of returning the names converted
to upper case.

Somehow all of this seems to be strange to me.  Since all Microsoft
operating systems have case preserved but insensitive filenames, it seems
like the glob function should effectively convert the pattern each
prospective filename match to lower case and then if fnmatch() succeeds, the
original (un-lower cased) filename should be returned.  In the ideal world,
this would not occur for non-Microsoft filesystems.

Gary


"Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il> wrote in message
news:Pine DOT SUN DOT 3 DOT 91 DOT 1030129080002 DOT 11962C AT is...
>
> On Tue, 28 Jan 2003, Charles Sandmann wrote:
>
> > I see this behavior.  For example, "A.vec" exists (A upper case):
> >
> > C:\>djecho a*.vec A*.vec A*.VEC a*.VEC
> > a.vec A.vec A*.VEC a*.VEC
> >
> > This behavior is not Win2K specific - it also happens on Win98
> >
> > "B.VEC" exists (all upper case):
> >
> > C:\>djecho b*.vec B*.vec b*.VEC B*.VEC
> > b.VEC B*.vec b*.VEC B.VEC                    (on Win98, either build)
> > B.VEC B*.vec b*.VEC B.VEC                    (Win2K, v2.03 refresh)
> > b.vec B*.vec b*.VEC B.VEC                    (Win2K, CVS build)
>
> I think this is the intended behavior.  The docs of `glob' should
> describe it.  In particular, file names that fit 8+3 DOS limits (like
> B.VEC in this case) are downcased by default.
>
> > It is certainly not what I would expect.
>
> Even after reading the docs?  If so, why not?  Does setting "FNCASE=y"
> change the behavior to something that you like better?

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