Author: larry
Date: Tue Oct 10 12:16:52 2006
New Revision: 13016
Modified:
doc/trunk/design/syn/S03.pod
Log:
Clarified dwimminess relationship to * list extension.
Modified: doc/trunk/design/syn/S03.pod
==============================================================================
--- doc/trunk/design/syn/S03.pod (original)
+++ doc/trunk/design/syn/S03.pod Tue Oct 10 12:16:52 2006
@@ -14,7 +14,7 @@
Date: 8 Mar 2004
Last Modified: 10 Oct 2006
Number: 3
- Version: 70
+ Version: 71
=head1 Changes to Perl 5 operators
@@ -775,11 +775,15 @@
$bigger «*« $smaller
$smaller »*» $bigger
-and exception is thrown, and if you write
+an exception is thrown, and if you write
$foo »*« $bar
you are requiring the shapes to be identical, or an exception will be thrown.
+By default this dwimmery only upgrades whole dimensions, not short lists.
+However, any list ending with C<*> can also be arbitrarily extended as if
+the last element of the list were arbitrarily replicated C<*> times. But
+this happens only on the "dwimmy" side.
When using a unary operator, you always aim the blunt end at the
single operand, because no dwimmery every happens:
