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- Path: sparky!uunet!utcsri!utcs.toronto.edu!cks
- Newsgroups: comp.unix.questions
- From: cks@hawkwind.utcs.toronto.edu (Chris Siebenmann)
- Subject: Re: IS UNIX DEAD (long)
- Message-ID: <1992Nov12.231311.19926@jarvis.csri.toronto.edu>
- Organization: Ziebmef home away from home
- References: <sf0Rr2q00iUy4_zx4l@andrew.cmu.edu>
- Date: 13 Nov 92 04:13:12 GMT
- Lines: 34
-
- Nicholas Kramer <nk24+@andrew.cmu.edu> writes:
- | Even though I'm a Unix person, I kinda like the idea of OS/2's case
- | preservation but non-case sensitive. [...] I gotta admit I haven't
- | found a whole lot of instances of case sensitivity being useful in file
- | names.
-
- It isn't a question of preservation of case sensetivity; it is a
- question of teaching the kernel about case insensetivity. Right now,
- the kernel doesn't know anything about the character set you (or
- anyone else on the system) is using; all it knows about are two
- special 8-bit blobs, one for 'end of filepath' and another for
- 'filepath sepperator'. If you teach it about case insensetivity,
- it is now working in whatever character set you chose, and people
- who wish to use it with other ones are out of luck.
-
- This is not academic; people use non-ASCII character sets on
- Unix today (either augmented with extra characters or completely
- replaced; JIS, for example). If you must do this, you had better
- think *very* carefully about what character set you are going
- to use and how much you are going to have to change. There are
- some interesting Plan 9 papers that touch on this issue; interested
- people are directed to /dist/plan9man on research.att.com for
- more information.
-
- I am dubious that you could make the change to case sensetivity on a
- system today and really be able to call the end result 'Unix'. Does
- anyone know if POSIX.1 mandates the current Unix behavior?
-
- --
- When we get calls from faculty and staff regarding problematic
- software, we always ask if they have a backup. We got this
- *classic* response today "Well, I thought I had a backup, but
- she refused to type it in again..." - Lou Anschuetz
- cks@hawkwind.utcs.toronto.edu ...!{utgpu,utzoo,watmath}!utgpu!cks
-