Document, in the Elisp manual, how to get a character's raw syntax descriptor

* doc/lispref/syntax.texi (Syntax Table internals): mention the use of `aref'
to get a character's raw syntax descriptor.

diff --git a/doc/lispref/syntax.texi b/doc/lispref/syntax.texi
index fd461b755c0a6f0e650e9e3572c68fb553f4b8ad..3327d7855c4fee3c88e180ff804e5b186978b09e 100644 (file)
--- a/doc/lispref/syntax.texi
+++ b/doc/lispref/syntax.texi
@@ -972,6 +972,10 @@ encodes the syntax class and syntax flags, according to the table
 below.  @var{matching-char}, if non-@code{nil}, specifies a matching
 character (similar to the second character in a syntax descriptor).
 
+@cindex syntax tables (accessing elements of)
+Use @code{aref} (@pxref{Array Functions}) to get the raw syntax
+descriptor of a character, e.g. @w{@code{(aref (syntax-table) ch)}}.
+
   Here are the syntax codes corresponding to the various syntax
 classes: