Explain CTRL-META chars and how to use ESC for them.

diff --git a/etc/TUTORIAL b/etc/TUTORIAL
index 3a76a966daaec037d5a3983f8ce3ee9b2380304f..a387dcae00eb34937775c4271761824e2fdef70e 100644 (file)
--- a/etc/TUTORIAL
+++ b/etc/TUTORIAL
@@ -3,14 +3,14 @@ Copyright (c) 1985 Free Software Foundation, Inc;  See end for conditions.
 You are looking at the Emacs tutorial.
 
 Emacs commands generally involve the CONTROL key (sometimes labelled
-CTRL or CTL) or the META key (sometimes labelled EDIT).  Rather than
+CTRL or CTL) or the META key (sometimes labelled EDIT or ALT).  Rather than
 write out META or CONTROL each time we want you to prefix a character,
 we'll use the following abbreviations:
 
  C-<chr>  means hold the CONTROL key while typing the character <chr>
          Thus, C-f would be: hold the CONTROL key and type f.
- M-<chr>  means hold the META or EDIT key down while typing <chr>.
-         If there is no META or EDIT key, type <ESC>, release it,
+ M-<chr>  means hold the META or EDIT or ALT key down while typing <chr>.
+         If there is no META key or equivalent, type <ESC>, release it,
          then type the character <chr>.  "<ESC>" stands for the
          key labelled "ESC".
 
@@ -753,6 +753,16 @@ window and using the other window just for reference.  You can keep
 the cursor always in the window where you are editing, and edit
 there as you advance through the other window.
 
+C-M-v is an example of a CONTROL-META character.  If you have a real
+META key, you can type C-M-v by holding down both CTRL and META while
+typing v.
+
+It doesn't matter whether CTRL or META "comes first," because both of
+these keys act by modifying the characters you type.  But if you don't
+have a real META key, and you use ESC instead, the order does matter:
+you must type ESC followed by CTRL-v; CTRL-ESC v will not work.  This
+is because ESC is a character in its own right, not a modifier key.
+
 >> Type C-x 1 (in the top window) to get rid of the bottom window.
 
 (If you had typed C-x 1 in the bottom window, that would get rid