Doc updates re filter-buffer-substring

[gnu-emacs] / doc / lispref / functions.texi

diff --git a/doc/lispref/functions.texi b/doc/lispref/functions.texi
index 460736778817a137d26f4ca682c7c344d47397eb..019c75ba021a5629d58242f17246c3aa129c0ee1 100644 (file)
--- a/doc/lispref/functions.texi
+++ b/doc/lispref/functions.texi
@@ -1207,10 +1207,10 @@ specify how the two functions are composed, since there are many different
 ways to do it.  The added function is also called an @emph{advice}.
 
 @menu
-* Core Advising Primitives::    Primitives to Manipulate Advices
-* Advising Named Functions::    Advising Named Functions
-* Advice combinators::         Ways to compose advices
-* Porting old advices::         Adapting code using the old defadvice
+* Core Advising Primitives::    Primitives to manipulate advice.
+* Advising Named Functions::    Advising named functions.
+* Advice combinators::          Ways to compose advices.
+* Porting old advices::         Adapting code using the old defadvice.
 @end menu
 
 @node Core Advising Primitives
@@ -1240,7 +1240,8 @@ buffer: if @var{place} is just a symbol, then @var{function} is added to the
 global value of @var{place}.  Whereas if @var{place} is of the form
 @code{(local @var{symbol})}, where @var{symbol} is an expression which returns
 the variable name, then @var{function} will only be added in the
-current buffer.
+current buffer.  Finally, if you want to modify a lexical variable, you will
+have to use @code{(var @var{VARIABLE})}.
 
 Every function added with @code{add-function} can be accompanied by an
 association list of properties @var{props}.  Currently only two of those