document regex capturing

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/APACHE_2_0_BRANCH@104676 13f79535-47bb-0310-9956-ffa450edef68

diff --git a/docs/manual/mod/mod_setenvif.xml b/docs/manual/mod/mod_setenvif.xml
index 73507583fee68ee9b4578a3bea2ffab24ae56147..79f6e79bef622ca77fc1a94a47d1b83dff79947b 100644 (file)
--- a/docs/manual/mod/mod_setenvif.xml
+++ b/docs/manual/mod/mod_setenvif.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!DOCTYPE modulesynopsis SYSTEM "../style/modulesynopsis.dtd">
 <?xml-stylesheet type="text/xsl" href="../style/manual.en.xsl"?>
-<!-- $Revision: 1.7.2.4 $ -->
+<!-- $Revision: 1.7.2.5 $ -->
 
 <!--
  Copyright 2002-2004 The Apache Software Foundation
@@ -207,7 +207,10 @@ of</p>
     <p>In the first form, the value will be set to "1". The second
     will remove the given variable if already defined, and the
     third will set the variable to the literal value given by
-    <code><em>value</em></code>.</p>
+    <code><em>value</em></code>. Since version 2.0.51 Apache will
+    recognize occurrences of <code>$1</code>..<code>$9</code> within
+    <var>value</var> and replace them by parenthesized subexpressions
+    of <var>regex</var>.</p>
 
 <example>
 <title>Example:</title>