home *** CD-ROM | disk | FTP | other *** search
- From: mcvax!axis!philip (Philip Peake)
- Organization: Axis Digital, 135 rue d'Aguesseau, Boulogne, 92100, FRANCE
-
- >OK, here's a new topic. File names.
- >
- >UNIX is the only major operating system
- >that treats things like file names, logins, host names, and commands
- >as case sensitive. The net effect of this is that users get
- >confused, since they have to get the capitalization right every time.
-
- This is mainly because such users move from restrictive environments
- where they are forced to use a single case. if you look at the problems
- of *NEW* users - those not having been crippled by having already worked
- in a single case environment, the natural method of working is in
- two cases. I have never found anyone incapable of understanding that
- upper and lowwer case letters are different.
-
- >To avoid confusion, everybody always just uses lower case.
-
- Maybe you do, but, there are many people who don't.
-
- >there are few, if any, benefits from a two-case system, and any time
- >anyone tries to do something that isn't pure lower case, it causes
- >confusion for somebody and often breaks some program.
-
- This is mainly bad software engineering. Taken to its logical conclusion
- one could say that letting users get at programs often breaks them
- (the programs that it, (usually)) so let's ban users.
-
- >Another problem is that emulations on other operating systems,
- >such as VMS or MS DOS, will become impossible without drastic
- >changes to their file systems. Given the problems in the above
- >paragraph, plus politics as usual, I think it is unlikely that
- >other systems will be changed to have case sensitive file systems.
- >After all, it's not like it was easiest to make the VMS filesystem
- >case insensitive - that took extra effort on their part.
-
- It seems to me that this extra effort was needed to circumvent the
- extra effort needed in making their system work correctly with
- all the legal ascii characters - it was designed by a team of
- people who had been mentaly crippled by using such a one-case
- system.
-
- >I think it's a mistake to move in the direction of requiring other
- >operating systems to become case sensitive. If anything, motion in
- >the other direction might be of more benefit.
-
- This seems like a retrograde step.
-
- >Note: I am NOT suggesting that UNIX should have a case insensitive
- >filesystem that maps everything to UPPER CASE like MS DOS. There is
- >nothing wrong with mapping everything to lower case, for example.
- >It's also reasonable to leave the case alone, but ignore case in
- >comparisons. There is also probably a good argument for keeping
- >it case sensitive (after all, there are probably 5 or 6 people out
- >there who really need both makefile and Makefile, or both mail and
- >Mail, for some reason that escapes me at the moment.)
-
- Here we have a typing error, I think that you really meant 5*10^4 or
- 6*10^4, didn't you Mark ?
-
- This seems to be a logical extention to the ridiculous proposal
- for command names and options which came from Bell Labs. some time
- ago - all lower case, single letter options etc.
-
- If you want to use upper and lowwer case for login names, it is a simple
- matter to re-write login to be case insensitive.
-
- If you want the same for file name handling in the shell, again it is
- fairly simple to add a test for some environment variable, which
- would force upper-lower case equivalence. Exactly what happens then
- if you have both Makefile and makefile (which is another case of bad
- software enginering - that make accepts both) you get both files,
- or maybe an error. That's your problem, but I want to keep the ability
- to use both cases.
-
- In a more general case, are you suggesting that UNIX is going to be
- forever tied to ASCII - what about internationalisation issues - how
- do you handle non-english alphabets where case may be CRITICALLY
- important.
-
- I would propose that the current scheme is a good one - allow file names
- to be composed of any characters in the base character set.
-
- Philip Peake
-
- Volume-Number: Volume 7, Number 56
-
-