Gecko [ georgetownmover.com ]

Name	Size	Permission	Date
App	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Archive	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Attribute	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
B	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
CPAN	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Carp	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Class	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Compress	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Config	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
DBM_Filter	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Devel	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Digest	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Encode	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Exporter	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
ExtUtils	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
File	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Filter	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Getopt	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
HTTP	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
I18N	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
IO	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
IPC	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
JSON	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Locale	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Math	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Memoize	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Module	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Net	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Params	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Parse	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Perl	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
PerlIO	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Pod	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Search	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
TAP	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Term	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Test	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Test2	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Text	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Thread	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Tie	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Time	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Unicode	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
User	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
autodie	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
encoding	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
overload	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
pod	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
unicore	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
version	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
warnings	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
x86_64-linux	[ DIR ]	drwxr-xr-x	2019-05-31 11:40
AnyDBM_File.pm	2.56 KB	-r--r--r--	2019-05-31 11:39
AutoLoader.pm	15.43 KB	-r--r--r--	2019-05-31 11:39
AutoSplit.pm	19.18 KB	-r--r--r--	2019-05-31 11:39
Benchmark.pm	30.3 KB	-r--r--r--	2019-05-31 11:39
CORE.pod	3.11 KB	-r--r--r--	2019-05-31 11:39
CPAN.pm	138.65 KB	-r--r--r--	2019-05-31 11:39
Carp.pm	35.12 KB	-r--r--r--	2019-05-31 11:39
DB.pm	18.48 KB	-r--r--r--	2019-05-31 11:39
DBM_Filter.pm	14.05 KB	-r--r--r--	2019-05-31 11:39
Digest.pm	10.45 KB	-r--r--r--	2019-05-31 11:39
DirHandle.pm	2.04 KB	-r--r--r--	2019-05-31 11:39
Dumpvalue.pm	17.14 KB	-r--r--r--	2019-05-31 11:39
English.pm	4.65 KB	-r--r--r--	2019-05-31 11:39
Env.pm	5.39 KB	-r--r--r--	2019-05-31 11:39
Exporter.pm	18.36 KB	-r--r--r--	2019-05-31 11:39
Fatal.pm	56.81 KB	-r--r--r--	2019-05-31 11:39
FileCache.pm	5.42 KB	-r--r--r--	2019-05-31 11:39
FileHandle.pm	6.63 KB	-r--r--r--	2019-05-31 11:39
FindBin.pm	4.45 KB	-r--r--r--	2019-05-31 11:39
Internals.pod	2.51 KB	-r--r--r--	2019-05-31 11:39
Memoize.pm	35.34 KB	-r--r--r--	2019-05-31 11:39
NEXT.pm	18.54 KB	-r--r--r--	2019-05-31 11:39
PerlIO.pm	10.21 KB	-r--r--r--	2019-05-31 11:39
Safe.pm	24.49 KB	-r--r--r--	2019-05-31 11:39
SelectSaver.pm	1.05 KB	-r--r--r--	2019-05-31 11:39
SelfLoader.pm	17.27 KB	-r--r--r--	2019-05-31 11:39
Symbol.pm	4.69 KB	-r--r--r--	2019-05-31 11:39
Test.pm	29.34 KB	-r--r--r--	2019-05-31 11:39
Test2.pm	6.24 KB	-r--r--r--	2019-05-31 11:39
Thread.pm	8.09 KB	-r--r--r--	2019-05-31 11:39
UNIVERSAL.pm	6.44 KB	-r--r--r--	2019-05-31 11:39
XSLoader.pm	10.99 KB	-r--r--r--	2019-05-31 11:39
_charnames.pm	32.39 KB	-r--r--r--	2019-05-31 11:39
autodie.pm	12.58 KB	-r--r--r--	2019-05-31 11:39
autouse.pm	4.14 KB	-r--r--r--	2019-05-31 11:39
base.pm	10.7 KB	-r--r--r--	2019-05-31 11:39
bigint.pm	22.85 KB	-r--r--r--	2019-05-31 11:39
bignum.pm	20.64 KB	-r--r--r--	2019-05-31 11:39
bigrat.pm	15.78 KB	-r--r--r--	2019-05-31 11:39
blib.pm	2.01 KB	-r--r--r--	2019-05-31 11:39
bytes.pm	3.65 KB	-r--r--r--	2019-05-31 11:39
bytes_heavy.pl	758 B	-r--r--r--	2019-05-31 11:39
charnames.pm	20.38 KB	-r--r--r--	2019-05-31 11:39
constant.pm	14.38 KB	-r--r--r--	2019-05-31 11:39
deprecate.pm	4.5 KB	-r--r--r--	2019-05-31 11:39
diagnostics.pm	18.59 KB	-r--r--r--	2019-05-31 11:39
dumpvar.pl	15.19 KB	-r--r--r--	2019-05-31 11:39
experimental.pm	6.9 KB	-r--r--r--	2019-05-31 11:39
feature.pm	17.28 KB	-r--r--r--	2019-05-31 11:39
fields.pm	9.25 KB	-r--r--r--	2019-05-31 11:39
filetest.pm	3.91 KB	-r--r--r--	2019-05-31 11:39
if.pm	3.53 KB	-r--r--r--	2019-05-31 11:39
integer.pm	3.18 KB	-r--r--r--	2019-05-31 11:39
less.pm	3.13 KB	-r--r--r--	2019-05-31 11:39
locale.pm	4.74 KB	-r--r--r--	2019-05-31 11:39
meta_notation.pm	2.07 KB	-r--r--r--	2019-05-31 11:39
ok.pm	967 B	-r--r--r--	2019-05-31 11:39
open.pm	7.83 KB	-r--r--r--	2019-05-31 11:39
overload.pm	52.04 KB	-r--r--r--	2019-05-31 11:39
overloading.pm	1.77 KB	-r--r--r--	2019-05-31 11:39
parent.pm	2.51 KB	-r--r--r--	2019-05-31 11:39
perl5db.pl	309.68 KB	-r--r--r--	2019-05-31 11:39
perlfaq.pm	77 B	-r--r--r--	2019-05-31 11:39
sigtrap.pm	8.53 KB	-r--r--r--	2019-05-31 11:39
sort.pm	3.82 KB	-r--r--r--	2019-05-31 11:39
strict.pm	4.63 KB	-r--r--r--	2019-05-31 11:39
subs.pm	901 B	-r--r--r--	2019-05-31 11:39
utf8.pm	10.18 KB	-r--r--r--	2019-05-31 11:39
utf8_heavy.pl	26.66 KB	-r--r--r--	2019-05-31 11:39
vars.pm	2.4 KB	-r--r--r--	2019-05-31 11:39
version.pm	1.93 KB	-r--r--r--	2019-05-31 11:39
version.pod	9.6 KB	-r--r--r--	2019-05-31 11:39
vmsish.pm	4.21 KB	-r--r--r--	2019-05-31 11:39
warnings.pm	48.82 KB	-r--r--r--	2019-05-31 11:39

Rename

package AnyDBM_File;
use warnings;
use strict;

use 5.006_001;
our $VERSION = '1.01';
our @ISA = qw(NDBM_File DB_File GDBM_File SDBM_File ODBM_File) unless @ISA;

my $mod;
for $mod (@ISA) {
    if (eval "require $mod") {
	@ISA = ($mod);	# if we leave @ISA alone, warnings abound
	return 1;
    }
}

die "No DBM package was successfully found or installed";

__END__

=head1 NAME

AnyDBM_File - provide framework for multiple DBMs

NDBM_File, DB_File, GDBM_File, SDBM_File, ODBM_File - various DBM implementations

=head1 SYNOPSIS

use AnyDBM_File;

=head1 DESCRIPTION

This module is a "pure virtual base class"--it has nothing of its own.
It's just there to inherit from one of the various DBM packages.  It
prefers ndbm for compatibility reasons with Perl 4, then Berkeley DB (See
L<DB_File>), GDBM, SDBM (which is always there--it comes with Perl), and
finally ODBM.   This way old programs that used to use NDBM via dbmopen()
can still do so, but new ones can reorder @ISA:

BEGIN { @AnyDBM_File::ISA = qw(DB_File GDBM_File NDBM_File) }
    use AnyDBM_File;

Having multiple DBM implementations makes it trivial to copy database formats:

use Fcntl; use NDBM_File; use DB_File;
    tie %newhash,  'DB_File', $new_filename, O_CREAT|O_RDWR;
    tie %oldhash,  'NDBM_File', $old_filename, 1, 0;
    %newhash = %oldhash;

=head2 DBM Comparisons

Here's a partial table of features the different packages offer:

odbm    ndbm    sdbm    gdbm    bsd-db
			 ----	 ----    ----    ----    ------
 Linkage comes w/ perl   yes     yes     yes     yes     yes
 Src comes w/ perl       no      no      yes     no      no
 Comes w/ many unix os   yes     yes[0]  no      no      no
 Builds ok on !unix      ?       ?       yes     yes     ?
 Code Size               ?       ?       small   big     big
 Database Size           ?       ?       small   big?    ok[1]
 Speed                   ?       ?       slow    ok      fast
 FTPable                 no      no      yes     yes     yes
 Easy to build          N/A     N/A      yes     yes     ok[2]
 Size limits             1k      4k      1k[3]   none    none
 Byte-order independent  no      no      no      no      yes
 Licensing restrictions  ?       ?       no      yes     no

=over 4

=item [0]

on mixed universe machines, may be in the bsd compat library,
which is often shunned.

=item [1]

Can be trimmed if you compile for one access method.

=item [2]

See L<DB_File>. 
Requires symbolic links.

=item [3]

By default, but can be redefined.

=back

=head1 SEE ALSO

dbm(3), ndbm(3), DB_File(3), L<perldbmfilter>

=cut