* syntax.texi (Syntax Table Functions): Document cons cell

argument for modify-syntax-entry.
(Categories): Document cons cell argument for
modify-category-entry.

doc/lispref/ChangeLog

 2009-04-10  Chong Yidong  <cyd@stupidchicken.com>
 
+	* syntax.texi (Syntax Table Functions): Document cons cell
+	argument for modify-syntax-entry.
+	(Categories): Document cons cell argument for
+	modify-category-entry.
+
 	* searching.texi (String Search): Document word-search-forward-lax
 	and word-search-backward-lax.
 	(Searching and Case): Describe isearch behavior more precisely.

doc/lispref/syntax.texi

@@ -418,12 +418,17 @@ not a syntax table.
 
 @deffn Command modify-syntax-entry char syntax-descriptor  &optional table
 This function sets the syntax entry for @var{char} according to
-@var{syntax-descriptor}.  The syntax is changed only for @var{table},
-which defaults to the current buffer's syntax table, and not in any
-other syntax table.  The argument @var{syntax-descriptor} specifies the
-desired syntax; this is a string beginning with a class designator
-character, and optionally containing a matching character and flags as
-well.  @xref{Syntax Descriptors}.
+@var{syntax-descriptor}.  @var{char} can be a character, or a cons
+cell of the form @code{(@var{min} . @var{max})}; in the latter case,
+the function sets the syntax entries for all characters in the range
+between @var{min} and @var{max}, inclusive.
+
+The syntax is changed only for @var{table}, which defaults to the
+current buffer's syntax table, and not in any other syntax table.  The
+argument @var{syntax-descriptor} specifies the desired syntax; this is
+a string beginning with a class designator character, and optionally
+containing a matching character and flags as well.  @xref{Syntax
+Descriptors}.
 
 This function always returns @code{nil}.  The old syntax information in
 the table for this character is discarded.
@@ -1163,12 +1168,15 @@ of the set.
 @end example
 @end defun
 
-@defun modify-category-entry character category &optional table reset
-This function modifies the category set of @var{character} in category
+@defun modify-category-entry char category &optional table reset
+This function modifies the category set of @var{char} in category
 table @var{table} (which defaults to the current buffer's category
-table).
+table).  @var{char} can be a character, or a cons cell of the form
+@code{(@var{min} . @var{max})}; in the latter case, the function
+modifies the category sets of all characters in the range between
+@var{min} and @var{max}, inclusive.
 
-Normally, it modifies the category set by adding @var{category} to it.
+Normally, it modifies a category set by adding @var{category} to it.
 But if @var{reset} is non-@code{nil}, then it deletes @var{category}
 instead.
 @end defun