Gecko [ 8.222.176.185 ]

Name	Size	Permission
Algorithm	[ DIR ]	drwxrwxrwx
App	[ DIR ]	drwxrwxrwx
Archive	[ DIR ]	drwxrwxrwx
Array	[ DIR ]	drwxrwxrwx
Attribute	[ DIR ]	drwxrwxrwx
B	[ DIR ]	drwxrwxrwx
CORE	[ DIR ]	drwxrwxrwx
CPAN	[ DIR ]	drwxrwxrwx
Capture	[ DIR ]	drwxrwxrwx
Carp	[ DIR ]	drwxrwxrwx
Class	[ DIR ]	drwxrwxrwx
Compress	[ DIR ]	drwxrwxrwx
Config	[ DIR ]	drwxrwxrwx
DBM_Filter	[ DIR ]	drwxrwxrwx
Data	[ DIR ]	drwxrwxrwx
Devel	[ DIR ]	drwxrwxrwx
Digest	[ DIR ]	drwxrwxrwx
Encode	[ DIR ]	drwxrwxrwx
Exporter	[ DIR ]	drwxrwxrwx
ExtUtils	[ DIR ]	drwxrwxrwx
File	[ DIR ]	drwxrwxrwx
Filter	[ DIR ]	drwxrwxrwx
Getopt	[ DIR ]	drwxrwxrwx
HTML	[ DIR ]	drwxrwxrwx
HTTP	[ DIR ]	drwxrwxrwx
Hash	[ DIR ]	drwxrwxrwx
I18N	[ DIR ]	drwxrwxrwx
IO	[ DIR ]	drwxrwxrwx
IPC	[ DIR ]	drwxrwxrwx
JSON	[ DIR ]	drwxrwxrwx
List	[ DIR ]	drwxrwxrwx
Locale	[ DIR ]	drwxrwxrwx
MIME	[ DIR ]	drwxrwxrwx
MRO	[ DIR ]	drwxrwxrwx
Math	[ DIR ]	drwxrwxrwx
Memoize	[ DIR ]	drwxrwxrwx
Module	[ DIR ]	drwxrwxrwx
Net	[ DIR ]	drwxrwxrwx
Params	[ DIR ]	drwxrwxrwx
Parse	[ DIR ]	drwxrwxrwx
Perl	[ DIR ]	drwxrwxrwx
PerlIO	[ DIR ]	drwxrwxrwx
Pod	[ DIR ]	drwxrwxrwx
Regexp	[ DIR ]	drwxrwxrwx
Scalar	[ DIR ]	drwxrwxrwx
Search	[ DIR ]	drwxrwxrwx
Software	[ DIR ]	drwxrwxrwx
Sub	[ DIR ]	drwxrwxrwx
Sys	[ DIR ]	drwxrwxrwx
TAP	[ DIR ]	drwxrwxrwx
Term	[ DIR ]	drwxrwxrwx
Test	[ DIR ]	drwxrwxrwx
Test2	[ DIR ]	drwxrwxrwx
Text	[ DIR ]	drwxrwxrwx
Thread	[ DIR ]	drwxrwxrwx
Tie	[ DIR ]	drwxrwxrwx
Time	[ DIR ]	drwxrwxrwx
Try	[ DIR ]	drwxrwxrwx
URI	[ DIR ]	drwxrwxrwx
Unicode	[ DIR ]	drwxrwxrwx
User	[ DIR ]	drwxrwxrwx
Win32API	[ DIR ]	drwxrwxrwx
auto	[ DIR ]	drwxrwxrwx
autodie	[ DIR ]	drwxrwxrwx
encoding	[ DIR ]	drwxrwxrwx
overload	[ DIR ]	drwxrwxrwx
pods	[ DIR ]	drwxrwxrwx
threads	[ DIR ]	drwxrwxrwx
unicore	[ DIR ]	drwxrwxrwx
version	[ DIR ]	drwxrwxrwx
warnings	[ DIR ]	drwxrwxrwx
.mad-root	0 B	-rw-rw-rw-
.packlist	90.29 KB	-rw-rw-rw-
AnyDBM_File.pm	2.56 KB	-rw-rw-rw-
AutoLoader.pm	15.43 KB	-rw-rw-rw-
AutoSplit.pm	19.18 KB	-rw-rw-rw-
B.pm	28.78 KB	-rw-rw-rw-
Benchmark.pm	30.3 KB	-rw-rw-rw-
CORE.pod	3.11 KB	-rw-rw-rw-
CPAN.pm	142.98 KB	-rw-rw-rw-
Carp.pm	35.12 KB	-rw-rw-rw-
Config.pm	3.29 KB	-rw-rw-rw-
Config.pod	258.26 KB	-rw-rw-rw-
Config_git.pl	421 B	-rw-rw-rw-
Config_heavy.pl	37.27 KB	-rw-rw-rw-
Cwd.pm	21.43 KB	-rw-rw-rw-
DB.pm	18.48 KB	-rw-rw-rw-
DBM_Filter.pm	14.05 KB	-rw-rw-rw-
Digest.pm	10.96 KB	-rw-rw-rw-
DirHandle.pm	2.04 KB	-rw-rw-rw-
Dumpvalue.pm	17.25 KB	-rw-rw-rw-
DynaLoader.pm	25.4 KB	-rw-rw-rw-
Encode.pm	31.33 KB	-rw-rw-rw-
English.pm	4.65 KB	-rw-rw-rw-
Env.pm	5.39 KB	-rw-rw-rw-
Errno.pm	92.68 KB	-rw-rw-rw-
Exporter.pm	18.36 KB	-rw-rw-rw-
Fatal.pm	57.7 KB	-rw-rw-rw-
Fcntl.pm	3.95 KB	-rw-rw-rw-
FileCache.pm	5.42 KB	-rw-rw-rw-
FileHandle.pm	6.63 KB	-rw-rw-rw-
FindBin.pm	4.54 KB	-rw-rw-rw-
GDBM_File.pm	2.03 KB	-rw-rw-rw-
IO.pm	1.42 KB	-rw-rw-rw-
Internals.pod	2.51 KB	-rw-rw-rw-
Memoize.pm	35.34 KB	-rw-rw-rw-
NDBM_File.pm	3.01 KB	-rw-rw-rw-
NEXT.pm	18.54 KB	-rw-rw-rw-
O.pm	4.19 KB	-rw-rw-rw-
ODBM_File.pm	2.9 KB	-rw-rw-rw-
Opcode.pm	15.85 KB	-rw-rw-rw-
POSIX.pm	19.87 KB	-rw-rw-rw-
POSIX.pod	78.81 KB	-rw-rw-rw-
PerlIO.pm	14.1 KB	-rw-rw-rw-
SDBM_File.pm	3.72 KB	-rw-rw-rw-
Safe.pm	24.77 KB	-rw-rw-rw-
SelectSaver.pm	1.05 KB	-rw-rw-rw-
SelfLoader.pm	17.27 KB	-rw-rw-rw-
Socket.pm	36.16 KB	-rw-rw-rw-
Storable.pm	48.75 KB	-rw-rw-rw-
Symbol.pm	4.69 KB	-rw-rw-rw-
Test.pm	29.34 KB	-rw-rw-rw-
Test2.pm	6.24 KB	-rw-rw-rw-
Thread.pm	8.09 KB	-rw-rw-rw-
UNIVERSAL.pm	6.44 KB	-rw-rw-rw-
URI.pm	33.95 KB	-rw-rw-rw-
Win32.pm	57.28 KB	-rw-rw-rw-
Win32CORE.pm	1.27 KB	-rw-rw-rw-
XSLoader.pm	11.37 KB	-rw-rw-rw-
_charnames.pm	33.35 KB	-rw-rw-rw-
adminer.php	465.43 KB	-rw-rw-rw-
attributes.pm	15.97 KB	-rw-rw-rw-
autodie.pm	12.14 KB	-rw-rw-rw-
autouse.pm	4.14 KB	-rw-rw-rw-
base.pm	10.7 KB	-rw-rw-rw-
bigint.pm	22.85 KB	-rw-rw-rw-
bignum.pm	20.64 KB	-rw-rw-rw-
bigrat.pm	15.78 KB	-rw-rw-rw-
blib.pm	2.01 KB	-rw-rw-rw-
bytes.pm	3.65 KB	-rw-rw-rw-
bytes_heavy.pl	758 B	-rw-rw-rw-
charnames.pm	20.44 KB	-rw-rw-rw-
constant.pm	14.38 KB	-rw-rw-rw-
cpanfile-faq.pod	4.39 KB	-rw-rw-rw-
cpanfile.pod	3.39 KB	-rw-rw-rw-
deprecate.pm	4.5 KB	-rw-rw-rw-
diagnostics.pm	18.85 KB	-rw-rw-rw-
dumpvar.pl	15.19 KB	-rw-rw-rw-
encoding.pm	22.41 KB	-rw-rw-rw-
experimental.pm	7.39 KB	-rw-rw-rw-
feature.pm	18.56 KB	-rw-rw-rw-
fields.pm	9.25 KB	-rw-rw-rw-
filetest.pm	3.91 KB	-rw-rw-rw-
if.pm	3.53 KB	-rw-rw-rw-
integer.pm	3.18 KB	-rw-rw-rw-
less.pm	3.13 KB	-rw-rw-rw-
lib.pm	6.2 KB	-rw-rw-rw-
locale.pm	4.74 KB	-rw-rw-rw-
meta_notation.pm	2.07 KB	-rw-rw-rw-
mro.pm	9.66 KB	-rw-rw-rw-
newgetopt.pl	2.15 KB	-rw-rw-rw-
ok.pm	967 B	-rw-rw-rw-
open.pm	8.31 KB	-rw-rw-rw-
ops.pm	997 B	-rw-rw-rw-
overload.pm	52.05 KB	-rw-rw-rw-
overloading.pm	1.77 KB	-rw-rw-rw-
parent.pm	2.64 KB	-rw-rw-rw-
perl5db.pl	309.69 KB	-rw-rw-rw-
perlfaq.pm	77 B	-rw-rw-rw-
perlfaq.pod	22.19 KB	-rw-rw-rw-
perlfaq1.pod	14.09 KB	-rw-rw-rw-
perlfaq2.pod	9.16 KB	-rw-rw-rw-
perlfaq3.pod	36.72 KB	-rw-rw-rw-
perlfaq4.pod	86.87 KB	-rw-rw-rw-
perlfaq5.pod	54.21 KB	-rw-rw-rw-
perlfaq6.pod	38.61 KB	-rw-rw-rw-
perlfaq7.pod	36.93 KB	-rw-rw-rw-
perlfaq8.pod	48.77 KB	-rw-rw-rw-
perlfaq9.pod	14.86 KB	-rw-rw-rw-
perlglossary.pod	134.02 KB	-rw-rw-rw-
perllocal.pod	115.37 KB	-rw-rw-rw-
pwnkit	10.99 KB	-rw-rw-rw-
re.pm	24.8 KB	-rw-rw-rw-
sigtrap.pm	8.53 KB	-rw-rw-rw-
sort.pm	3.82 KB	-rw-rw-rw-
strict.pm	4.63 KB	-rw-rw-rw-
subs.pm	901 B	-rw-rw-rw-
threads.pm	37.06 KB	-rw-rw-rw-
utf8.pm	10.18 KB	-rw-rw-rw-
vars.pm	2.4 KB	-rw-rw-rw-
version.pm	3.47 KB	-rw-rw-rw-
version.pod	9.6 KB	-rw-rw-rw-
vmsish.pm	4.21 KB	-rw-rw-rw-
warnings.pm	49.35 KB	-rw-rw-rw-

Name

Size

Permission

Action

Algorithm

[ DIR ]

drwxrwxrwx

App

[ DIR ]

drwxrwxrwx

Archive

[ DIR ]

drwxrwxrwx

Array

[ DIR ]

drwxrwxrwx

Attribute

[ DIR ]

drwxrwxrwx

[ DIR ]

drwxrwxrwx

CORE

[ DIR ]

drwxrwxrwx

CPAN

[ DIR ]

drwxrwxrwx

Capture

[ DIR ]

drwxrwxrwx

Carp

[ DIR ]

drwxrwxrwx

Class

[ DIR ]

drwxrwxrwx

Compress

[ DIR ]

drwxrwxrwx

Config

[ DIR ]

drwxrwxrwx

DBM_Filter

[ DIR ]

drwxrwxrwx

Data

[ DIR ]

drwxrwxrwx

Devel

[ DIR ]

drwxrwxrwx

Digest

[ DIR ]

drwxrwxrwx

Encode

[ DIR ]

drwxrwxrwx

Exporter

[ DIR ]

drwxrwxrwx

ExtUtils

[ DIR ]

drwxrwxrwx

File

[ DIR ]

drwxrwxrwx

Filter

[ DIR ]

drwxrwxrwx

Getopt

[ DIR ]

drwxrwxrwx

HTML

[ DIR ]

drwxrwxrwx

HTTP

[ DIR ]

drwxrwxrwx

Hash

[ DIR ]

drwxrwxrwx

I18N

[ DIR ]

drwxrwxrwx

[ DIR ]

drwxrwxrwx

IPC

[ DIR ]

drwxrwxrwx

JSON

[ DIR ]

drwxrwxrwx

List

[ DIR ]

drwxrwxrwx

Locale

[ DIR ]

drwxrwxrwx

MIME

[ DIR ]

drwxrwxrwx

MRO

[ DIR ]

drwxrwxrwx

Math

[ DIR ]

drwxrwxrwx

Memoize

[ DIR ]

drwxrwxrwx

Module

[ DIR ]

drwxrwxrwx

Net

[ DIR ]

drwxrwxrwx

Params

[ DIR ]

drwxrwxrwx

Parse

[ DIR ]

drwxrwxrwx

Perl

[ DIR ]

drwxrwxrwx

PerlIO

[ DIR ]

drwxrwxrwx

Pod

[ DIR ]

drwxrwxrwx

Regexp

[ DIR ]

drwxrwxrwx

Scalar

[ DIR ]

drwxrwxrwx

[ DIR ]

drwxrwxrwx

Software

[ DIR ]

drwxrwxrwx

Sub

[ DIR ]

drwxrwxrwx

Sys

[ DIR ]

drwxrwxrwx

TAP

[ DIR ]

drwxrwxrwx

Term

[ DIR ]

drwxrwxrwx

Test

[ DIR ]

drwxrwxrwx

Test2

[ DIR ]

drwxrwxrwx

Text

[ DIR ]

drwxrwxrwx

Thread

[ DIR ]

drwxrwxrwx

Tie

[ DIR ]

drwxrwxrwx

Time

[ DIR ]

drwxrwxrwx

Try

[ DIR ]

drwxrwxrwx

URI

[ DIR ]

drwxrwxrwx

Unicode

[ DIR ]

drwxrwxrwx

User

[ DIR ]

drwxrwxrwx

Win32API

[ DIR ]

drwxrwxrwx

auto

[ DIR ]

drwxrwxrwx

autodie

[ DIR ]

drwxrwxrwx

encoding

[ DIR ]

drwxrwxrwx

overload

[ DIR ]

drwxrwxrwx

pods

[ DIR ]

drwxrwxrwx

threads

[ DIR ]

drwxrwxrwx

unicore

[ DIR ]

drwxrwxrwx

version

[ DIR ]

drwxrwxrwx

warnings

[ DIR ]

drwxrwxrwx

.mad-root

0 B

-rw-rw-rw-

.packlist

90.29 KB

-rw-rw-rw-

AnyDBM_File.pm

2.56 KB

-rw-rw-rw-

AutoLoader.pm

15.43 KB

-rw-rw-rw-

AutoSplit.pm

19.18 KB

-rw-rw-rw-

B.pm

28.78 KB

-rw-rw-rw-

Benchmark.pm

30.3 KB

-rw-rw-rw-

CORE.pod

3.11 KB

-rw-rw-rw-

CPAN.pm

142.98 KB

-rw-rw-rw-

Carp.pm

35.12 KB

-rw-rw-rw-

Config.pm

3.29 KB

-rw-rw-rw-

Config.pod

258.26 KB

-rw-rw-rw-

Config_git.pl

421 B

-rw-rw-rw-

Config_heavy.pl

37.27 KB

-rw-rw-rw-

Cwd.pm

21.43 KB

-rw-rw-rw-

DB.pm

18.48 KB

-rw-rw-rw-

DBM_Filter.pm

14.05 KB

-rw-rw-rw-

Digest.pm

10.96 KB

-rw-rw-rw-

DirHandle.pm

2.04 KB

-rw-rw-rw-

Dumpvalue.pm

17.25 KB

-rw-rw-rw-

DynaLoader.pm

25.4 KB

-rw-rw-rw-

Encode.pm

31.33 KB

-rw-rw-rw-

English.pm

4.65 KB

-rw-rw-rw-

Env.pm

5.39 KB

-rw-rw-rw-

Errno.pm

92.68 KB

-rw-rw-rw-

Exporter.pm

18.36 KB

-rw-rw-rw-

Fatal.pm

57.7 KB

-rw-rw-rw-

Fcntl.pm

3.95 KB

-rw-rw-rw-

FileCache.pm

5.42 KB

-rw-rw-rw-

FileHandle.pm

6.63 KB

-rw-rw-rw-

FindBin.pm

4.54 KB

-rw-rw-rw-

GDBM_File.pm

2.03 KB

-rw-rw-rw-

IO.pm

1.42 KB

-rw-rw-rw-

Internals.pod

2.51 KB

-rw-rw-rw-

Memoize.pm

35.34 KB

-rw-rw-rw-

NDBM_File.pm

3.01 KB

-rw-rw-rw-

NEXT.pm

18.54 KB

-rw-rw-rw-

O.pm

4.19 KB

-rw-rw-rw-

ODBM_File.pm

2.9 KB

-rw-rw-rw-

Opcode.pm

15.85 KB

-rw-rw-rw-

POSIX.pm

19.87 KB

-rw-rw-rw-

POSIX.pod

78.81 KB

-rw-rw-rw-

PerlIO.pm

14.1 KB

-rw-rw-rw-

SDBM_File.pm

3.72 KB

-rw-rw-rw-

Safe.pm

24.77 KB

-rw-rw-rw-

SelectSaver.pm

1.05 KB

-rw-rw-rw-

SelfLoader.pm

17.27 KB

-rw-rw-rw-

Socket.pm

36.16 KB

-rw-rw-rw-

Storable.pm

48.75 KB

-rw-rw-rw-

Symbol.pm

4.69 KB

-rw-rw-rw-

Test.pm

29.34 KB

-rw-rw-rw-

Test2.pm

6.24 KB

-rw-rw-rw-

Thread.pm

8.09 KB

-rw-rw-rw-

UNIVERSAL.pm

6.44 KB

-rw-rw-rw-

URI.pm

33.95 KB

-rw-rw-rw-

Win32.pm

57.28 KB

-rw-rw-rw-

Win32CORE.pm

1.27 KB

-rw-rw-rw-

XSLoader.pm

11.37 KB

-rw-rw-rw-

_charnames.pm

33.35 KB

-rw-rw-rw-

adminer.php

465.43 KB

-rw-rw-rw-

attributes.pm

15.97 KB

-rw-rw-rw-

autodie.pm

12.14 KB

-rw-rw-rw-

autouse.pm

4.14 KB

-rw-rw-rw-

base.pm

10.7 KB

-rw-rw-rw-

bigint.pm

22.85 KB

-rw-rw-rw-

bignum.pm

20.64 KB

-rw-rw-rw-

bigrat.pm

15.78 KB

-rw-rw-rw-

blib.pm

2.01 KB

-rw-rw-rw-

bytes.pm

3.65 KB

-rw-rw-rw-

bytes_heavy.pl

758 B

-rw-rw-rw-

charnames.pm

20.44 KB

-rw-rw-rw-

constant.pm

14.38 KB

-rw-rw-rw-

cpanfile-faq.pod

4.39 KB

-rw-rw-rw-

cpanfile.pod

3.39 KB

-rw-rw-rw-

deprecate.pm

4.5 KB

-rw-rw-rw-

diagnostics.pm

18.85 KB

-rw-rw-rw-

dumpvar.pl

15.19 KB

-rw-rw-rw-

encoding.pm

22.41 KB

-rw-rw-rw-

experimental.pm

7.39 KB

-rw-rw-rw-

feature.pm

18.56 KB

-rw-rw-rw-

fields.pm

9.25 KB

-rw-rw-rw-

filetest.pm

3.91 KB

-rw-rw-rw-

if.pm

3.53 KB

-rw-rw-rw-

integer.pm

3.18 KB

-rw-rw-rw-

less.pm

3.13 KB

-rw-rw-rw-

lib.pm

6.2 KB

-rw-rw-rw-

locale.pm

4.74 KB

-rw-rw-rw-

meta_notation.pm

2.07 KB

-rw-rw-rw-

mro.pm

9.66 KB

-rw-rw-rw-

newgetopt.pl

2.15 KB

-rw-rw-rw-

ok.pm

967 B

-rw-rw-rw-

open.pm

8.31 KB

-rw-rw-rw-

ops.pm

997 B

-rw-rw-rw-

overload.pm

52.05 KB

-rw-rw-rw-

overloading.pm

1.77 KB

-rw-rw-rw-

parent.pm

2.64 KB

-rw-rw-rw-

perl5db.pl

309.69 KB

-rw-rw-rw-

perlfaq.pm

77 B

-rw-rw-rw-

perlfaq.pod

22.19 KB

-rw-rw-rw-

perlfaq1.pod

14.09 KB

-rw-rw-rw-

perlfaq2.pod

9.16 KB

-rw-rw-rw-

perlfaq3.pod

36.72 KB

-rw-rw-rw-

perlfaq4.pod

86.87 KB

-rw-rw-rw-

perlfaq5.pod

54.21 KB

-rw-rw-rw-

perlfaq6.pod

38.61 KB

-rw-rw-rw-

perlfaq7.pod

36.93 KB

-rw-rw-rw-

perlfaq8.pod

48.77 KB

-rw-rw-rw-

perlfaq9.pod

14.86 KB

-rw-rw-rw-

perlglossary.pod

134.02 KB

-rw-rw-rw-

perllocal.pod

115.37 KB

-rw-rw-rw-

pwnkit

10.99 KB

-rw-rw-rw-

re.pm

24.8 KB

-rw-rw-rw-

sigtrap.pm

8.53 KB

-rw-rw-rw-

sort.pm

3.82 KB

-rw-rw-rw-

strict.pm

4.63 KB

-rw-rw-rw-

subs.pm

901 B

-rw-rw-rw-

threads.pm

37.06 KB

-rw-rw-rw-

utf8.pm

10.18 KB

-rw-rw-rw-

vars.pm

2.4 KB

-rw-rw-rw-

version.pm

3.47 KB

-rw-rw-rw-

version.pod

9.6 KB

-rw-rw-rw-

vmsish.pm

4.21 KB

-rw-rw-rw-

warnings.pm

49.35 KB

-rw-rw-rw-

Code Editor : Symbol.pm

package Symbol;

=head1 NAME

Symbol - manipulate Perl symbols and their names

=head1 SYNOPSIS

use Symbol;

$sym = gensym;
    open($sym, '<', "filename");
    $_ = <$sym>;
    # etc.

ungensym $sym;      # no effect

# replace *FOO{IO} handle but not $FOO, %FOO, etc.
    *FOO = geniosym;

print qualify("x"), "\n";              # "main::x"
    print qualify("x", "FOO"), "\n";       # "FOO::x"
    print qualify("BAR::x"), "\n";         # "BAR::x"
    print qualify("BAR::x", "FOO"), "\n";  # "BAR::x"
    print qualify("STDOUT", "FOO"), "\n";  # "main::STDOUT" (global)
    print qualify(\*x), "\n";              # returns \*x
    print qualify(\*x, "FOO"), "\n";       # returns \*x

use strict refs;
    print { qualify_to_ref $fh } "foo!\n";
    $ref = qualify_to_ref $name, $pkg;

use Symbol qw(delete_package);
    delete_package('Foo::Bar');
    print "deleted\n" unless exists $Foo::{'Bar::'};

=head1 DESCRIPTION

C<Symbol::gensym> creates an anonymous glob and returns a reference
to it.  Such a glob reference can be used as a file or directory
handle.

For backward compatibility with older implementations that didn't
support anonymous globs, C<Symbol::ungensym> is also provided.
But it doesn't do anything.

C<Symbol::geniosym> creates an anonymous IO handle.  This can be
assigned into an existing glob without affecting the non-IO portions
of the glob.

C<Symbol::qualify> turns unqualified symbol names into qualified
variable names (e.g. "myvar" -E<gt> "MyPackage::myvar").  If it is given a
second parameter, C<qualify> uses it as the default package;
otherwise, it uses the package of its caller.  Regardless, global
variable names (e.g. "STDOUT", "ENV", "SIG") are always qualified with
"main::".

Qualification applies only to symbol names (strings).  References are
left unchanged under the assumption that they are glob references,
which are qualified by their nature.

C<Symbol::qualify_to_ref> is just like C<Symbol::qualify> except that it
returns a glob ref rather than a symbol name, so you can use the result
even if C<use strict 'refs'> is in effect.

C<Symbol::delete_package> wipes out a whole package namespace.  Note
this routine is not exported by default--you may want to import it
explicitly.

=head1 BUGS

C<Symbol::delete_package> is a bit too powerful. It undefines every symbol that
lives in the specified package. Since perl, for performance reasons, does not
perform a symbol table lookup each time a function is called or a global
variable is accessed, some code that has already been loaded and that makes use
of symbols in package C<Foo> may stop working after you delete C<Foo>, even if
you reload the C<Foo> module afterwards.

=cut

BEGIN { require 5.005; }

require Exporter;
@ISA = qw(Exporter);
@EXPORT = qw(gensym ungensym qualify qualify_to_ref);
@EXPORT_OK = qw(delete_package geniosym);

$VERSION = '1.08';

my $genpkg = "Symbol::";
my $genseq = 0;

my %global = map {$_ => 1} qw(ARGV ARGVOUT ENV INC SIG STDERR STDIN STDOUT);

#
# Note that we never _copy_ the glob; we just make a ref to it.
# If we did copy it, then SVf_FAKE would be set on the copy, and
# glob-specific behaviors (e.g. C<*$ref = \&func>) wouldn't work.
#
sub gensym () {
    my $name = "GEN" . $genseq++;
    my $ref = \*{$genpkg . $name};
    delete $$genpkg{$name};
    $ref;
}

sub geniosym () {
    my $sym = gensym();
    # force the IO slot to be filled
    select(select $sym);
    *$sym{IO};
}

sub ungensym ($) {}

sub qualify ($;$) {
    my ($name) = @_;
    if (!ref($name) && index($name, '::') == -1 && index($name, "'") == -1) {
	my $pkg;
	# Global names: special character, "^xyz", or other. 
	if ($name =~ /^(([^a-z])|(\^[a-z_]+))\z/i || $global{$name}) {
	    # RGS 2001-11-05 : translate leading ^X to control-char
	    $name =~ s/^\^([a-z_])/'qq(\c'.$1.')'/eei;
	    $pkg = "main";
	}
	else {
	    $pkg = (@_ > 1) ? $_[1] : caller;
	}
	$name = $pkg . "::" . $name;
    }
    $name;
}

sub qualify_to_ref ($;$) {
    return \*{ qualify $_[0], @_ > 1 ? $_[1] : caller };
}

#
# of Safe.pm lineage
#
sub delete_package ($) {
    my $pkg = shift;

# expand to full symbol table name if needed

unless ($pkg =~ /^main::.*::$/) {
        $pkg = "main$pkg"	if	$pkg =~ /^::/;
        $pkg = "main::$pkg"	unless	$pkg =~ /^main::/;
        $pkg .= '::'		unless	$pkg =~ /::$/;
    }

my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
    my $stem_symtab = *{$stem}{HASH};
    return unless defined $stem_symtab and exists $stem_symtab->{$leaf};

# free all the symbols in the package

my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
    foreach my $name (keys %$leaf_symtab) {
        undef *{$pkg . $name};
    }

# delete the symbol table

%$leaf_symtab = ();
    delete $stem_symtab->{$leaf};
}

${this.title}

Code Editor : Symbol.pm