B::clearsym

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

diff --git a/pod/perlvar.pod b/pod/perlvar.pod
index cb41c96..d38bc49 100644 (file)
--- a/pod/perlvar.pod
+++ b/pod/perlvar.pod
@@ -45,9 +45,7 @@ you try to assign to this variable, either directly or indirectly through
 a reference, you'll raise a run-time exception.
 
 The following list is ordered by scalar variables first, then the
-arrays, then the hashes (except $^M was added in the wrong place).
-This is somewhat obscured because %ENV and %SIG are listed as
-$ENV{expr} and $SIG{expr}.
+arrays, then the hashes.
 
 =over 8
 
@@ -220,8 +218,10 @@ to change that.  An explicit close on a filehandle resets the line
 number.  Because C<E<lt>E<gt>> never does an explicit close, line
 numbers increase across ARGV files (but see examples in L<perlfunc/eof>).
 Consider this variable read-only: setting it does not reposition
-the seek pointer; you'll have to do that on your own.  (Mnemonic:
-many programs use "." to mean the current line number.)  
+the seek pointer; you'll have to do that on your own.  Localizing C<$.>
+has the effect of also localizing Perl's notion of "the last read
+filehandle".  (Mnemonic: many programs use "." to mean the current line
+number.)
 
 =item input_record_separator HANDLE EXPR
 
@@ -814,7 +814,12 @@ and B<-C> filetests are based on this value.
 
 The current value of the warning switch, initially true if B<-w>
 was used, false otherwise, but directly modifiable.  (Mnemonic:
-related to the B<-w> switch.)  See also L<warning>.
+related to the B<-w> switch.)  See also L<warnings>.
+
+=item ${^Warnings}
+
+The current set of warning checks enabled by the C<use warnings> pragma.
+See the documentation of C<warnings> for more details.
 
 =item $EXECUTABLE_NAME
 
@@ -859,7 +864,7 @@ The hash %INC contains entries for each filename included via the
 C<do>, C<require>, or C<use> operators.  The key is the filename
 you specified (with module names converted to pathnames), and the
 value is the location of the file found.  The C<require>
-operator uses this array to determine whether a particular file has
+operator uses this hash to determine whether a particular file has
 already been included.
 
 =item %ENV
@@ -963,7 +968,7 @@ Carp was available.  The third line will be executed only if Carp was
 not available.
 
 See L<perlfunc/die>, L<perlfunc/warn>, L<perlfunc/eval>, and
-L<warning> for additional information.
+L<warnings> for additional information.
 
 =back
 
@@ -1038,7 +1043,7 @@ C<W>) is the scalar variable whose name is the single character
 control-C<W>.  This is better than typing a literal control-C<W>
 into your program.
 
-Finally, new in Perl 5.006, Perl variable names may be alphanumeric
+Finally, new in Perl 5.6, Perl variable names may be alphanumeric
 strings that begin with control characters (or better yet, a caret).
 These variables must be written in the form C<${^Foo}>; the braces
 are not optional.  C<${^Foo}> denotes the scalar variable whose