'~~' is not a feature [repost]

[p5sagit/p5-mst-13.2.git] / pod / perltodo.pod

diff --git a/pod/perltodo.pod b/pod/perltodo.pod
index d869b67..c6ab065 100644 (file)
--- a/pod/perltodo.pod
+++ b/pod/perltodo.pod
@@ -365,11 +365,6 @@ Make F<pod/roffitall> be updated by F<pod/buildtoc>.
 These tasks would need a little C knowledge, but don't need any specific
 background or experience with XS, or how the Perl interpreter works
 
-=head2 Exterminate PL_na!
-
-C<PL_na> festers still in the darkest corners of various typemap files.
-It needs to be exterminated, replaced by a local variable of type C<STRLEN>.
-
 =head2 Modernize the order of directories in @INC
 
 The way @INC is laid out by default, one cannot upgrade core (dual-life)
@@ -667,6 +662,21 @@ also the warning messages (see L<perllexwarn>, C<warnings.pl>).
 These tasks would need C knowledge, and knowledge of how the interpreter works,
 or a willingness to learn.
 
+=head2 lexicals used only once
+
+This warns:
+
+    $ perl -we '$pie = 42'
+    Name "main::pie" used only once: possible typo at -e line 1.
+
+This does not:
+
+    $ perl -we 'my $pie = 42'
+
+Logically all lexicals used only once should warn, if the user asks for
+warnings.  An unworked RT ticket (#5087) has been open for almost seven
+years for this discrepancy.
+
 =head2 UTF-8 revamp
 
 The handling of Unicode is unclean in many places. For example, the regexp