perl5.002beta3

[editor's note: no patch file was found for this release, so no
fine-grained changes]

I can't find the password for our ftp server, so I had to drop it into
ftp://ftp.sems.com/pub/incoming/perl5.002b3.tar.gz, which is a drop
directory you can't ls.

The current plan is that Andy is gonna whack on this a little more, and
then release a gamma in a few days when he's happy with it.  So don't get
carried away.  This is now *late* beta.

In other words, have less than the appropriate amount of fun.  :-)

Larry

1 files changed, 27 insertions, 0 deletions

diff --git a/pod/perltrap.pod b/pod/perltrap.pod
index 79e3ae5ca9..dd219c064b 100644
--- a/pod/perltrap.pod
+++ b/pod/perltrap.pod
@@ -324,6 +324,12 @@ Using local() actually gives a local value to a global
 variable, which leaves you open to unforeseen side-effects
 of dynamic scoping.
 
+=item *
+
+If you localize an exported variable in a module, its exported value will
+not change.  The local name becomes an alias to a new value but the
+external name is still an alias for the original.
+
 =back
 
 =head2 Perl4 Traps
@@ -486,6 +492,27 @@ works fine, however.
 
 =item *
 
+The meaning of foreach has changed slightly when it is iterating over a
+list which is not an array.  This used to assign the list to a
+temporary array, but no longer does so (for efficiency).  This means
+that you'll now be iterating over the actual values, not over copies of
+the values.  Modifications to the loop variable can change the original
+values.  To retain Perl 4 semantics you need to assign your list
+explicitly to a temporary array and then iterate over that.  For
+example, you might need to change
+
+    foreach $var (grep /x/, @list) { ... }
+
+to
+
+    foreach $var (my @tmp = grep /x/, @list) { ... }
+
+Otherwise changing C<$var> will clobber the values of @list.  (This most often
+happens when you use C<$_> for the loop variable, and call subroutines in
+the loop that don't properly localize C<$_>.)
+
+=item *
+
 Some error messages will be different.
 
 =item *