Date: Mon Jul 7 21:40:33 2008
New Revision: 14558
more clarifications and remember to thank cjfields++ this time :)
--- doc/trunk/design/syn/S05.pod (original)
+++ doc/trunk/design/syn/S05.pod Mon Jul 7 21:40:33 2008
@@ -3692,6 +3692,9 @@
the longest one wins. In the case of two identical sequences the
first in order wins.
+As with the string form, missing righthand elements replicate the
+final element, and a null array results in deletion instead.
The recognition done by the string and array forms is very basic.
@@ -3703,7 +3706,8 @@
$str.=trans( [/ \h /, '<', '>', '&' ] =>
[' ', '<', '>', '&' ]);
- $str.=trans( / \s+ /, ' ' ); # squash all whitespace to one space
+ $str.=trans( / \s+ / => ' ' ); # squash all whitespace to one space
+ $str.=trans( / <!alpha> / => '' ); # delete all non-alpha
These submatches are mixed into the overall match in exactly the same way that
they are mixed into parallel alternation in ordinary regex processing, so