Gecko [ emad.team ]

Name	Size	Permission	Date
App	[ DIR ]	drwxr-xr-x	2021-08-18 16:17
Archive	[ DIR ]	drwxr-xr-x	2021-02-02 20:02
Attribute	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
B	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
CPAN	[ DIR ]	drwxr-xr-x	2021-08-18 16:18
Class	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
Compress	[ DIR ]	drwxr-xr-x	2021-08-18 16:17
Config	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
DBM_Filter	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
Devel	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
Encode	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
ExtUtils	[ DIR ]	drwxr-xr-x	2021-08-18 16:17
File	[ DIR ]	drwxr-xr-x	2021-08-18 16:17
Filter	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
Getopt	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
HTTP	[ DIR ]	drwxr-xr-x	2021-02-02 20:02
I18N	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
IO	[ DIR ]	drwxr-xr-x	2021-08-18 16:17
IPC	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
JSON	[ DIR ]	drwxr-xr-x	2021-02-02 20:02
LWP	[ DIR ]	drwxr-xr-x	2021-08-18 16:17
Locale	[ DIR ]	drwxr-xr-x	2021-08-18 16:17
Log	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
Math	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
Memoize	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
Module	[ DIR ]	drwxr-xr-x	2021-08-18 16:17
Net	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
Object	[ DIR ]	drwxr-xr-x	2021-08-18 16:17
Package	[ DIR ]	drwxr-xr-x	2021-08-18 16:17
Perl	[ DIR ]	drwxr-xr-x	2021-02-02 20:02
PerlIO	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
Pod	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
Search	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
Term	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
Test	[ DIR ]	drwxr-xr-x	2021-02-02 20:02
Text	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
Thread	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
Tie	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
Time	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
URI	[ DIR ]	drwxr-xr-x	2021-08-18 16:17
Unicode	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
User	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
Version	[ DIR ]	drwxr-xr-x	2021-02-02 20:02
encoding	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
overload	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
pod	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
unicore	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
vendor_perl	[ DIR ]	drwxr-xr-x	2025-11-19 21:35
warnings	[ DIR ]	drwxr-xr-x	2021-08-18 16:07
AnyDBM_File.pm	2.56 KB	-rw-r--r--	2021-02-02 20:02
AutoLoader.pm	14.66 KB	-rw-r--r--	2021-02-02 20:02
AutoSplit.pm	19.18 KB	-rw-r--r--	2021-02-02 20:02
Benchmark.pm	27.87 KB	-rw-r--r--	2021-02-02 20:02
CORE.pod	2.7 KB	-rw-r--r--	2021-02-02 20:02
CPAN.pm	142.98 KB	-r--r--r--	2020-06-13 09:17
DB.pm	18.43 KB	-rw-r--r--	2021-02-02 20:02
DBM_Filter.pm	14.06 KB	-rw-r--r--	2021-02-02 20:02
DirHandle.pm	1.52 KB	-rw-r--r--	2021-02-02 20:02
Dumpvalue.pm	16.5 KB	-rw-r--r--	2021-02-02 20:02
English.pm	4.34 KB	-rw-r--r--	2021-02-02 20:02
FileCache.pm	5.44 KB	-rw-r--r--	2021-02-02 20:02
FileHandle.pm	6.62 KB	-rw-r--r--	2021-02-02 20:02
FindBin.pm	4.45 KB	-rw-r--r--	2021-02-02 20:02
LWP.pm	21.15 KB	-rw-r--r--	2013-03-12 01:03
Memoize.pm	34.4 KB	-rw-r--r--	2021-02-02 20:02
NEXT.pm	18.05 KB	-rw-r--r--	2021-02-02 20:02
PerlIO.pm	10.19 KB	-rw-r--r--	2021-02-02 20:02
Safe.pm	24.03 KB	-rw-r--r--	2021-02-02 20:02
SelectSaver.pm	1.05 KB	-rw-r--r--	2021-02-02 20:02
SelfLoader.pm	16.97 KB	-rw-r--r--	2021-02-02 20:02
Symbol.pm	4.68 KB	-rw-r--r--	2021-02-02 20:02
Test.pm	28.13 KB	-rw-r--r--	2021-02-02 20:02
Thread.pm	8.09 KB	-rw-r--r--	2021-02-02 20:02
UNIVERSAL.pm	6.97 KB	-rw-r--r--	2021-02-02 20:02
URI.pm	33.01 KB	-rw-r--r--	2012-03-26 01:17
XSLoader.pm	9.99 KB	-rw-r--r--	2021-02-02 20:02
_charnames.pm	29.8 KB	-rw-r--r--	2021-02-02 20:02
autouse.pm	4.14 KB	-rw-r--r--	2021-02-02 20:02
base.pm	6.37 KB	-rw-r--r--	2021-02-02 20:02
bigint.pm	17.44 KB	-rw-r--r--	2021-02-02 20:02
bignum.pm	18.23 KB	-rw-r--r--	2021-02-02 20:02
bigrat.pm	14.11 KB	-rw-r--r--	2021-02-02 20:02
blib.pm	2.04 KB	-rw-r--r--	2021-02-02 20:02
bytes.pm	2.96 KB	-rw-r--r--	2021-02-02 20:02
bytes_heavy.pl	758 B	-rw-r--r--	2021-02-02 20:02
charnames.pm	19.22 KB	-rw-r--r--	2021-02-02 20:02
deprecate.pm	3.01 KB	-rw-r--r--	2021-02-02 20:02
diagnostics.pm	17.96 KB	-rw-r--r--	2021-02-02 20:02
dumpvar.pl	14.96 KB	-rw-r--r--	2021-02-02 20:02
feature.pm	11.06 KB	-rw-r--r--	2021-02-02 20:02
fields.pm	9.28 KB	-rw-r--r--	2021-02-02 20:02
filetest.pm	3.91 KB	-rw-r--r--	2021-02-02 20:02
if.pm	1.13 KB	-rw-r--r--	2021-02-02 20:02
integer.pm	3.19 KB	-rw-r--r--	2021-02-02 20:02
less.pm	3.13 KB	-rw-r--r--	2021-02-02 20:02
locale.pm	2.72 KB	-rw-r--r--	2021-02-02 20:02
lwpcook.pod	9.05 KB	-rw-r--r--	2012-02-11 18:32
lwptut.pod	24.89 KB	-rw-r--r--	2012-02-11 18:32
open.pm	7.83 KB	-rw-r--r--	2021-02-02 20:02
overload.pm	52.66 KB	-rw-r--r--	2021-02-02 20:02
overloading.pm	1.77 KB	-rw-r--r--	2021-02-02 20:02
perl5db.pl	302.79 KB	-rw-r--r--	2021-02-02 20:02
perlfaq.pm	94 B	-rw-r--r--	2021-02-02 20:02
sigtrap.pm	7.46 KB	-rw-r--r--	2021-02-02 20:02
sort.pm	5.95 KB	-rw-r--r--	2021-02-02 20:02
strict.pm	3.84 KB	-rw-r--r--	2021-02-02 20:02
subs.pm	845 B	-rw-r--r--	2021-02-02 20:02
utf8.pm	7.6 KB	-rw-r--r--	2021-02-02 20:02
utf8_heavy.pl	30.1 KB	-rw-r--r--	2021-02-02 20:02
vars.pm	2.3 KB	-rw-r--r--	2021-02-02 20:02
vmsish.pm	4.22 KB	-rw-r--r--	2021-02-02 20:02
warnings.pm	18.34 KB	-rw-r--r--	2021-02-02 20:02

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