is used, and so on).
This feature makes it possible to share a single <I>body</I> among
several patterns.
<P>
Beware of how you place comments in <B>switch</B> commands.  Comments
should only be placed <B>inside</B> the execution body of one of the
patterns, and not intermingled with the patterns.
<H3><A NAME="M12">EXAMPLES</A></H3>
The <B>switch</B> command can match against variables and not just
literals, as shown here (the result is <I>2</I>):
<P>
<PRE>set foo &quot;abc&quot;
<B>switch</B> abc a - b {ex