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Re: what key is "s-u"?

From: Kevin Rodgers
Subject: Re: what key is "s-u"?
Date: Tue, 01 Jul 2003 10:44:56 -0600
User-agent: Mozilla/5.0 (X11; U; SunOS i86pc; en-US; rv: Gecko/20020406 Netscape6/6.2.2

Dan Jacobson wrote:

In the Help produced by (describe-function (quote view-lossage))
do add that "C-" means Control, M- means... etc.
In particular I see C-h l says I hit a "s-u" which I don't know means
what key.  C-h b shows no "s-" keys too.

From the Keys node of the Emacs Manual:

| Kinds of User Input
| ===================
|    Some terminals have a <META> key, and allow you to type Meta
| characters by holding this key down.  Thus, `Meta-a' is typed by
| holding down <META> and pressing `a'.  The <META> key works much like
| the <SHIFT> key.  Such a key is not always labeled <META>, however, as
| this function is often a special option for a key with some other
| primary purpose.  Sometimes it is labeled <ALT> or <EDIT>; on a Sun
| keyboard, it may have a diamond on it.
|    The X Window System provides several other modifier keys that can be
| applied to any input character.  These are called <SUPER>, <HYPER> and
| <ALT>.  We write `s-', `H-' and `A-' to say that a character uses these
| modifiers.  Thus, `s-H-C-x' is short for `Super-Hyper-Control-x'.  Not
| all X terminals actually provide keys for these modifier flags--in
| fact, many terminals have a key labeled <ALT> which is really a <META>
| key.  The standard key bindings of Emacs do not include any characters
| with these modifiers.  But you can assign them meanings of your own by
| customizing Emacs.

<a href="mailto:&lt;kevin.rodgers&#64;ihs.com&gt;";>Kevin Rodgers</a>

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