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From: Kilgallen@SpamCop.net (Larry Kilgallen)
Newsgroups: comp.lang.ada
Subject: Re: Modern languages are case sensitive?
Date: 18 Oct 2001 06:32:09 -0500
Organization: LJK Software
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In article <3BCE3F38.7C0B44FD@san.rr.com>, Darren New <dnew@san.rr.com> writes:
> Larry Kilgallen wrote:
>> 
>> In article <4a885870.0110171600.4c22aa7c@posting.google.com>, wv9557@yahoo.com (Will) writes:
>> 
>> > This is not really accurate. If you try to login into AIX with your cap
>> > lock down, it will actually prompt you in capital letters.
>> 
>> I don't see how that is possible over a serial line.
>> 
>> What do you mean by "try to login" ?
> 
> OT, but...
> 
> The way UNIX works is it prompts you for your username, then for your
> password. If you type your user name in all caps, the login program
> assumes you only have all-caps on your keyboard, and switches the
> terminal driver to a mode in which caps map to lowercase unless
> preceeded by an escape character (backslash, IIRC).

I had presumed from the original description that somehow it prompted
for username based on the settings of your keyboards.  I am accustomed
to VMS, where the initiation of a login sequence is a carriage return.
The resulting Username: prompt cannot be based on the keyboard mode
over a serial line, since there is no "case" to carriage return.

So how about the _initial_ login prompt from Unix ?

> It's actually quite the opposite of case insensitive.

Yes, it is closer to (but not an exact match for) case-preserving.