<CODE>$N</CODE>
</STRONG></BLOCKQUOTE>
-(1 <= N <= 9) which provide access to the grouped parts (parenthesis!)
-of the
-pattern from the corresponding <CODE>RewriteRule</CODE> directive (the one
-following the current bunch of <CODE>RewriteCond</CODE> directives).
+(0 <= N <= 9) which provide access to the grouped parts (parenthesis!)
+of the pattern from the corresponding <CODE>RewriteRule</CODE> directive (the
+one following the current bunch of <CODE>RewriteCond</CODE> directives).
<P>
<LI><STRONG>RewriteCond backreferences</STRONG>: These are backreferences of
<LI><A HREF="#mapfunc">mapping-function</A> calls (<CODE>${mapname:key|default}</CODE>)
</OL>
-Back-references are <CODE>$</CODE><STRONG>N</STRONG> (<STRONG>N</STRONG>=1..9) identifiers which
+Back-references are <CODE>$</CODE><STRONG>N</STRONG> (<STRONG>N</STRONG>=0..9) identifiers which
will be replaced by the contents of the <STRONG>N</STRONG>th group of the matched
<EM>Pattern</EM>. The server-variables are the same as for the
<EM>TestString</EM> of a <CODE>RewriteCond</CODE> directive. The