Path: utzoo!attcan!uunet!cs.utexas.edu!tut.cis.ohio-state.edu!ucbvax!moravian.EDU!nicholaA
From: nicholaA@moravian.EDU
Newsgroups: comp.sys.apple
Subject: P8, lowercase & Sys Disk 5.0
Message-ID: <8905121007.AA05776@batman.moravian.edu>
Date: 12 May 89 10:07:52 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 40


What follows is Matt Deatherage's message to me about ProDOS 8's handling
of lower-case text as of p8 1.8 and System Disk 5.0.

------- Forwarded Message

Date: Wed, 10 May 89 21:16:44 PDT
From: Matt Deatherage <mattd@apple.com>
To: mattd@apple.com, nicholaA%moravian.edu@RELAY.CS.NET
Subject: Re: AppleFest

The two bytes VERSION and MINVERSION in each directory entry have never been
used by ProDOS 8; these are now used to flag lower-case letters in a similar
method to the way AppleWorks uses the auxtype to keep lower-case in document
names.

The only time ProDOS 8 used those fields was in opening subdirectories; P8
v1.8 (on 5.0) no longer does this.  So anyone using lower-case letters in
subdirectory names will require the use of ProDOS 8 1.8 in the 8-bit world
to read them.

--Matt

------- End of Forwarded Message

Ok, this brings me to my next question: What does the 5.0 ProDOS FST do when
you request to create any file with the name "Help" as opposed to "HELP", which
might already exist in that directory?  Does the FST disallow that file
creation, reporting ProDOS/GSOS err $47 -- Duplicate Pathname?

Or, does the FST allow you to create "Help" even though "HELP" exists?  Assuming that the VERSION and MINVERSION fields use 1's to flag lowercase, the
actual directory entry would contain "HELP" and v/MINv of %0111000000000000
(lo/hi) -- so, if this second file is created, what's to tell ProDOS/8 that the
files are different if it doesn't read the v/MINv fields to check for
lowercase? Or does it? (from replies by Dave Lyons, it sounds like the former
rather than the latter).

andy

shrinkit@moravian.edu