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From: Richard Stallman <rms@gnu.org>
Newsgroups: gmane.emacs.help,gmane.emacs.bugs,gmane.emacs.devel
Subject: Re: read-key-sequence(-vector) on Shift left/right
	gives[left]/[right], not [S-left]/[S-right] ?
Date: Tue, 07 Sep 2004 20:22:05 -0400
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    2) Shouldn't it at least be documented in the doc strings of
    read-key-sequence and read-key-sequence-vector?

It already is:

The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not
convert the last event to lower case.  (Normally any upper case event
is converted to lower case if the original event is undefined and the lower
case equivalent is defined.)

    6) This is inconsistent (also) with read-event, which DTRT in this regard.

They are different for good reason.

    7) If this is for the convenience of being able to use the keys with
    caps-lock on, as the manual says, then why not just pre-bind shift-* to the
    same binding as * (*= any key)?

That would be obviously inconvenient if the user rebinds such a key.