Author: larry
Date: Wed Jun 11 17:53:27 2008
New Revision: 14551
Modified:
doc/trunk/design/syn/S05.pod
Log:
added <...> et al. as suggested by ruoso++
Modified: doc/trunk/design/syn/S05.pod
==============================================================================
--- doc/trunk/design/syn/S05.pod (original)
+++ doc/trunk/design/syn/S05.pod Wed Jun 11 17:53:27 2008
@@ -16,7 +16,7 @@
Date: 24 Jun 2002
Last Modified: 11 Jun 2008
Number: 5
- Version: 80
+ Version: 81
This document summarizes Apocalypse 5, which is about the new regex
syntax. We now try to call them I<regex> rather than "regular
@@ -1410,6 +1410,15 @@
=item *
+The C<< <...> >>, C<< <???> >>, and C<< <!!!> >> special tokens
+have the same "not-defined-yet" meanings within regexes that the bare
+elipses have in ordinary code. (However, by the recursive rules above,
+C<< <!!> >> is equivalent to C<< <?> >>, which matches the null string.
+Likewise C<< <!!before x> >> is just like C<< <?before x> >>, except
+that it is ignored by the longest-token matcher.)
+
+=item *
+
A leading C<*> indicates that the following pattern allows a
partial match. It always succeeds after matching as many characters
as possible. (It is not zero-width unless 0 characters match.)
