[perl #71000] Wrong variable name in warning

[perl5.git] / pod / perldbmfilter.pod

diff --git a/pod/perldbmfilter.pod b/pod/perldbmfilter.pod
index f10bdd0..f145b8a 100644 (file)
--- a/pod/perldbmfilter.pod
+++ b/pod/perldbmfilter.pod
@@ -4,9 +4,8 @@ perldbmfilter - Perl DBM Filters
 
 =head1 SYNOPSIS
 
-    my $db = tie my %hash, 'DBM', ...;
+    $db = tie %hash, 'DBM', ...
 
-    my $old_filter;
     $old_filter = $db->filter_store_key  ( sub { ... } );
     $old_filter = $db->filter_store_value( sub { ... } );
     $old_filter = $db->filter_fetch_key  ( sub { ... } );
@@ -74,7 +73,7 @@ when Perl writes to DBM databases it doesn't use NULL termination, so
 your Perl application will have to manage NULL termination itself. When
 you write to the database you will have to use something like this:
 
-    $hash{"$key\0"} = "$value\0" ;
+    $hash{"$key\0"} = "$value\0";
 
 Similarly the NULL needs to be taken into account when you are considering
 the length of existing keys/values.
@@ -92,7 +91,7 @@ fix very easily.
     use Fcntl;
 
     my %hash;
-    my $filename = '/tmp/filt';
+    my $filename = "filt";
     unlink $filename;
 
     my $db = tie(%hash, 'SDBM_File', $filename, O_RDWR|O_CREAT, 0640)
@@ -105,8 +104,8 @@ fix very easily.
         sub { no warnings 'uninitialized'; s/\0$// } );
     $db->filter_store_value( sub { $_ .= "\0" } );
 
-    $hash{abc} = 'def';
-    my $a = $hash{ABC};
+    $hash{"abc"} = "def";
+    my $a = $hash{"ABC"};
     # ...
     undef $db;
     untie %hash;
@@ -125,7 +124,7 @@ Here is another real-life example. By default, whenever Perl writes to
 a DBM database it always writes the key and value as strings. So when
 you use this:
 
-    $hash{12345} = 'something';
+    $hash{12345} = "something";
 
 the key 12345 will get stored in the DBM database as the 5 byte string
 "12345". If you actually want the key to be stored in the DBM database
@@ -138,16 +137,16 @@ Here is a DBM Filter that does it:
     use warnings;
     use DB_File;
     my %hash;
-    my $filename = '/tmp/filt';
+    my $filename = "filt";
     unlink $filename;
 
 
     my $db = tie %hash, 'DB_File', $filename, O_CREAT|O_RDWR, 0666, $DB_HASH 
       or die "Cannot open $filename: $!\n";
 
-    $db->filter_fetch_key  ( sub { $_ = unpack('i', $_) } );
-    $db->filter_store_key  ( sub { $_ = pack  ('i', $_) } );
-    $hash{123} = 'def';
+    $db->filter_fetch_key  ( sub { $_ = unpack("i", $_) } );
+    $db->filter_store_key  ( sub { $_ = pack ("i", $_) } );
+    $hash{123} = "def";
     # ...
     undef $db;
     untie %hash;