(Character Type): New \s escape for space.

1 files changed, 9 insertions, 5 deletions

diff --git a/lispref/objects.texi b/lispref/objects.texi
index 66c4f74ae2e..50f568cdbba 100644
--- a/lispref/objects.texi
+++ b/lispref/objects.texi
@@ -279,10 +279,12 @@ way to write the space character.  If the character is @samp{\}, you
 @cindex @samp{\r}
 @cindex escape
 @cindex @samp{\e}
+@cindex space
+@cindex @samp{\s}
   You can express the characters Control-g, backspace, tab, newline,
-vertical tab, formfeed, return, del, and escape as @samp{?\a},
+vertical tab, formfeed, space, return, del, and escape as @samp{?\a},
 @samp{?\b}, @samp{?\t}, @samp{?\n}, @samp{?\v}, @samp{?\f},
-@samp{?\r}, @samp{?\d}, and @samp{?\e}, respectively.  Thus,
+@samp{?\r}, @samp{?\d}, @samp{?\e}, and @samp{?\s}, respectively.  Thus,
 
 @example
 ?\a @result{} 7                 ; @r{@kbd{C-g}}
@@ -293,6 +295,7 @@ vertical tab, formfeed, return, del, and escape as @samp{?\a},
 ?\f @result{} 12                ; @r{formfeed character, @kbd{C-l}}
 ?\r @result{} 13                ; @r{carriage return, @key{RET}, @kbd{C-m}}
 ?\e @result{} 27                ; @r{escape character, @key{ESC}, @kbd{C-[}}
+?\s @result{} 32                ; @r{space character, @key{SPC}}
 ?\\ @result{} 92                ; @r{backslash character, @kbd{\}}
 ?\d @result{} 127               ; @r{delete character, @key{DEL}}
 @end example
@@ -407,7 +410,8 @@ represents the shifted-control-o character.
 in a character: @dfn{hyper}, @dfn{super} and @dfn{alt}.  The syntaxes
 for these bits are @samp{\H-}, @samp{\s-} and @samp{\A-}.  (Case is
 significant in these prefixes.)  Thus, @samp{?\H-\M-\A-x} represents
-@kbd{Alt-Hyper-Meta-x}.
+@kbd{Alt-Hyper-Meta-x}.  Note that @samp{\s} (without the @samp{-})
+represents the space character.
 @tex
 Numerically, the
 bit values are @math{2^{22}} for alt, @math{2^{23}} for super and @math{2^{24}} for hyper.
@@ -455,8 +459,8 @@ you should add a backslash before any of the characters
 @samp{()\|;'`"#.,} to avoid confusing the Emacs commands for editing
 Lisp code.  Also add a backslash before whitespace characters such as
 space, tab, newline and formfeed.  However, it is cleaner to use one of
-the easily readable escape sequences, such as @samp{\t}, instead of an
-actual whitespace character such as a tab.
+the easily readable escape sequences, such as @samp{\t} or @samp{\s},
+instead of an actual whitespace character such as a tab or a space.
 
 @node Symbol Type
 @subsection Symbol Type