Unused 'cv'

[perl5.git] / pod / perldata.pod

diff --git a/pod/perldata.pod b/pod/perldata.pod
index cbfe070..8f0feb7 100644 (file)
--- a/pod/perldata.pod
+++ b/pod/perldata.pod
@@ -385,15 +385,14 @@ Unicode strings, and for comparing version "numbers" using the string
 comparison operators, C<cmp>, C<gt>, C<lt> etc.  If there are two or
 more dots in the literal, the leading C<v> may be omitted.
 
-    print v9786;              # prints UTF-8 encoded SMILEY, "\x{263a}"
+    print v9786;              # prints SMILEY, "\x{263a}"
     print v102.111.111;       # prints "foo"
     print 102.111.111;        # same
 
 Such literals are accepted by both C<require> and C<use> for
-doing a version check.  The C<$^V> special variable also contains the
-running Perl interpreter's version in this form.  See L<perlvar/$^V>.
-Note that using the v-strings for IPv4 addresses is not portable unless
-you also use the inet_aton()/inet_ntoa() routines of the Socket package.
+doing a version check.  Note that using the v-strings for IPv4
+addresses is not portable unless you also use the
+inet_aton()/inet_ntoa() routines of the Socket package.
 
 Note that since Perl 5.8.1 the single-number v-strings (like C<v65>)
 are not v-strings before the C<< => >> operator (which is usually used
@@ -419,13 +418,13 @@ The two control characters ^D and ^Z, and the tokens __END__ and __DATA__
 may be used to indicate the logical end of the script before the actual
 end of file.  Any following text is ignored.
 
-Text after __DATA__ but may be read via the filehandle C<PACKNAME::DATA>,
+Text after __DATA__ may be read via the filehandle C<PACKNAME::DATA>,
 where C<PACKNAME> is the package that was current when the __DATA__
 token was encountered.  The filehandle is left open pointing to the
 contents after __DATA__.  It is the program's responsibility to
 C<close DATA> when it is done reading from it.  For compatibility with
 older scripts written before __DATA__ was introduced, __END__ behaves
-like __DATA__ in the toplevel script (but not in files loaded with
+like __DATA__ in the top level script (but not in files loaded with
 C<require> or C<do>) and leaves the remaining contents of the
 file accessible via C<main::DATA>.
 
@@ -443,8 +442,11 @@ be treated as if it were a quoted string.  These are known as
 "barewords".  As with filehandles and labels, a bareword that consists
 entirely of lowercase letters risks conflict with future reserved
 words, and if you use the C<use warnings> pragma or the B<-w> switch, 
-Perl will warn you about any
-such words.  Some people may wish to outlaw barewords entirely.  If you
+Perl will warn you about any such words.  Perl limits barewords (like
+identifiers) to about 250 characters.  Future versions of Perl are likely
+to eliminate these arbitrary limitations.
+
+Some people may wish to outlaw barewords entirely.  If you
 say
 
     use strict 'subs';
@@ -675,7 +677,7 @@ name of the array (without the leading C<@>), then the subscript inside
 square brackets.  For example:
 
     @myarray = (5, 50, 500, 5000);
-    print "Element Number 2 is", $myarray[2], "\n";
+    print "The Third Element is", $myarray[2], "\n";
 
 The array indices start with 0. A negative subscript retrieves its 
 value from the end.  In our example, C<$myarray[-1]> would have been