--- code/trunk/doc/pcrepattern.3	2011/07/20 18:03:20	628
+++ code/trunk/doc/pcrepattern.3	2011/07/22 10:00:10	630
@@ -2492,8 +2492,10 @@
 .P
 If any of these verbs are used in an assertion or subroutine subpattern
 (including recursive subpatterns), their effect is confined to that subpattern;
-it does not extend to the surrounding pattern. Note that such subpatterns are
-processed as anchored at the point where they are tested.
+it does not extend to the surrounding pattern, with one exception: a *MARK that
+is encountered in a positive assertion \fIis\fP passed back (compare capturing
+parentheses in assertions). Note that such subpatterns are processed as
+anchored at the point where they are tested.
 .P
 The new verbs make use of what was previously invalid syntax: an opening
 parenthesis followed by an asterisk. They are generally of the form
@@ -2584,6 +2586,10 @@
 of obtaining this information than putting each alternative in its own
 capturing parentheses.
 .P
+If (*MARK) is encountered in a positive assertion, its name is recorded and 
+passed back if it is the last-encountered. This does not happen for negative 
+assetions.
+.P
 A name may also be returned after a failed match if the final path through the
 pattern involves (*MARK). However, unless (*MARK) used in conjunction with
 (*COMMIT), this is unlikely to happen for an unanchored pattern because, as the
@@ -2755,6 +2761,6 @@
 .rs
 .sp
 .nf
-Last updated: 20 July 2011
+Last updated: 22 July 2011
 Copyright (c) 1997-2011 University of Cambridge.
 .fi