/
usr
/
local
/
share
/
man
/
man3
/
/usr/local/share/man/man3
mkdir
upload
Name
Size
Mode
Actions
App::Prove.3pm
10508
0444
edit
dl
rm
App::Prove::State.3pm
6005
0444
edit
dl
rm
App::Prove::State::Result.3pm
5619
0444
edit
dl
rm
App::Prove::State::Result::Test.3pm
5051
0444
edit
dl
rm
AppConfig.3pm
35289
0444
edit
dl
rm
AppConfig::Args.3pm
7992
0444
edit
dl
rm
AppConfig::CGI.3pm
6609
0444
edit
dl
rm
AppConfig::File.3pm
12614
0444
edit
dl
rm
AppConfig::Getopt.3pm
7444
0444
edit
dl
rm
AppConfig::State.3pm
24972
0444
edit
dl
rm
AppConfig::Sys.3pm
6695
0444
edit
dl
rm
Archive::Tar.3pm
44061
0444
edit
dl
rm
Archive::Tar::File.3pm
11083
0444
edit
dl
rm
Archive::Zip.3pm
69985
0444
edit
dl
rm
Archive::Zip::FAQ.3pm
18437
0444
edit
dl
rm
Archive::Zip::MemberRead.3pm
6734
0444
edit
dl
rm
Archive::Zip::Tree.3pm
2875
0444
edit
dl
rm
B::COW.3pm
5163
0444
edit
dl
rm
Canary::Stability.3pm
3727
0444
edit
dl
rm
CDB_File.3pm
14318
0444
edit
dl
rm
common::sense.3pm
0
0444
edit
dl
rm
Compress::Raw::Bzip2.3pm
13463
0444
edit
dl
rm
Compress::Raw::Zlib.3pm
42082
0444
edit
dl
rm
Compress::Zlib.3pm
38719
0444
edit
dl
rm
CPAN::Meta.3pm
15923
0444
edit
dl
rm
CPAN::Meta::Converter.3pm
6594
0444
edit
dl
rm
CPAN::Meta::Feature.3pm
4322
0444
edit
dl
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CPAN::Meta::History.3pm
7855
0444
edit
dl
rm
CPAN::Meta::History::Meta_1_0.3pm
9973
0444
edit
dl
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CPAN::Meta::History::Meta_1_1.3pm
12410
0444
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dl
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CPAN::Meta::History::Meta_1_2.3pm
22224
0444
edit
dl
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CPAN::Meta::History::Meta_1_3.3pm
23974
0444
edit
dl
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CPAN::Meta::History::Meta_1_4.3pm
24565
0444
edit
dl
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CPAN::Meta::Merge.3pm
5285
0444
edit
dl
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CPAN::Meta::Prereqs.3pm
7380
0444
edit
dl
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CPAN::Meta::Requirements.3pm
12308
0444
edit
dl
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CPAN::Meta::Spec.3pm
45592
0444
edit
dl
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CPAN::Meta::Validator.3pm
4215
0444
edit
dl
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CPAN::Meta::YAML.3pm
4230
0444
edit
dl
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Crypt::OpenSSL::Random.3pm
5634
0444
edit
dl
rm
Curses.3pm
37580
0444
edit
dl
rm
Curses::UI.3pm
15619
0444
edit
dl
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Curses::UI::Buttonbox.3pm
8908
0444
edit
dl
rm
Curses::UI::Calendar.3pm
8203
0444
edit
dl
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Curses::UI::Checkbox.3pm
6509
0444
edit
dl
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Curses::UI::Color.3pm
5903
0444
edit
dl
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Curses::UI::Common.3pm
6498
0444
edit
dl
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Curses::UI::Container.3pm
9041
0444
edit
dl
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Curses::UI::Dialog::Basic.3pm
5213
0444
edit
dl
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Curses::UI::Dialog::Calendar.3pm
4761
0444
edit
dl
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Curses::UI::Dialog::Dirbrowser.3pm
5369
0444
edit
dl
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Curses::UI::Dialog::Error.3pm
4307
0444
edit
dl
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Curses::UI::Dialog::Filebrowser.3pm
6889
0444
edit
dl
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Curses::UI::Dialog::Progress.3pm
5774
0444
edit
dl
rm
Curses::UI::Dialog::Question.3pm
5277
0444
edit
dl
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Curses::UI::Dialog::Status.3pm
4765
0444
edit
dl
rm
Curses::UI::Label.3pm
7333
0444
edit
dl
rm
Curses::UI::Listbox.3pm
11988
0444
edit
dl
rm
Curses::UI::Menubar.3pm
8110
0444
edit
dl
rm
Curses::UI::Notebook.3pm
9140
0444
edit
dl
rm
Curses::UI::PasswordEntry.3pm
3743
0444
edit
dl
rm
Curses::UI::Popupmenu.3pm
7431
0444
edit
dl
rm
Curses::UI::Progressbar.3pm
5891
0444
edit
dl
rm
Curses::UI::Radiobuttonbox.3pm
4069
0444
edit
dl
rm
Curses::UI::Searchable.3pm
6668
0444
edit
dl
rm
Curses::UI::TextEditor.3pm
14171
0444
edit
dl
rm
Curses::UI::TextEntry.3pm
3623
0444
edit
dl
rm
Curses::UI::TextViewer.3pm
3670
0444
edit
dl
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Curses::UI::Tutorial.3pm
8555
0444
edit
dl
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Curses::UI::Widget.3pm
25675
0444
edit
dl
rm
Curses::UI::Window.3pm
5084
0444
edit
dl
rm
Cwd.3pm
7183
0444
edit
dl
rm
Date::Format.3pm
7291
0444
edit
dl
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Date::Language.3pm
3809
0444
edit
dl
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Date::Language::Bulgarian.3pm
3675
0444
edit
dl
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Date::Language::Hungarian.3pm
3091
0444
edit
dl
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Date::Parse.3pm
5402
0444
edit
dl
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Digest::SHA.3pm
25759
0444
edit
dl
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Expect.3pm
60229
0444
edit
dl
rm
ExtUtils::CBuilder.3pm
11923
0444
edit
dl
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ExtUtils::CBuilder::Platform::Windows.3pm
3117
0444
edit
dl
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ExtUtils::Command.3pm
5942
0444
edit
dl
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ExtUtils::Command::MM.3pm
5723
0444
edit
dl
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ExtUtils::Liblist.3pm
12679
0444
edit
dl
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ExtUtils::MakeMaker.3pm
79357
0444
edit
dl
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ExtUtils::MakeMaker::Config.3pm
2587
0444
edit
dl
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ExtUtils::MakeMaker::FAQ.3pm
26829
0444
edit
dl
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ExtUtils::MakeMaker::Locale.3pm
11168
0444
edit
dl
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ExtUtils::MakeMaker::Tutorial.3pm
8389
0444
edit
dl
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ExtUtils::Manifest.3pm
11961
0444
edit
dl
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ExtUtils::Mkbootstrap.3pm
3459
0444
edit
dl
rm
ExtUtils::Mksymlists.3pm
6699
0444
edit
dl
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ExtUtils::MM.3pm
2829
0444
edit
dl
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ExtUtils::MM_AIX.3pm
3044
0444
edit
dl
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ExtUtils::MM_Any.3pm
31129
0444
edit
dl
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ExtUtils::MM_BeOS.3pm
2798
0444
edit
dl
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ExtUtils::MM_Cygwin.3pm
3569
0444
edit
dl
rm
ExtUtils::MM_Darwin.3pm
2688
0444
edit
dl
rm
ExtUtils::MM_DOS.3pm
3021
0444
edit
dl
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ExtUtils::MM_MacOS.3pm
2987
0444
edit
dl
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ExtUtils::MM_NW5.3pm
3200
0444
edit
dl
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ExtUtils::MM_OS2.3pm
2886
0444
edit
dl
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ExtUtils::MM_QNX.3pm
2942
0444
edit
dl
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ExtUtils::MM_Unix.3pm
21419
0444
edit
dl
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ExtUtils::MM_UWIN.3pm
3051
0444
edit
dl
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ExtUtils::MM_VMS.3pm
14900
0444
edit
dl
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ExtUtils::MM_VOS.3pm
2926
0444
edit
dl
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ExtUtils::MM_Win32.3pm
5919
0444
edit
dl
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ExtUtils::MM_Win95.3pm
3276
0444
edit
dl
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ExtUtils::MY.3pm
2764
0444
edit
dl
rm
ExtUtils::testlib.3pm
2690
0444
edit
dl
rm
File::GlobMapper.3pm
11447
0444
edit
dl
rm
File::HomeDir.3pm
18212
0444
edit
dl
rm
File::HomeDir::Darwin.3pm
3232
0444
edit
dl
rm
File::HomeDir::Darwin::Carbon.3pm
3517
0444
edit
dl
rm
File::HomeDir::Darwin::Cocoa.3pm
3446
0444
edit
dl
rm
File::HomeDir::Driver.3pm
3101
0444
edit
dl
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File::HomeDir::FreeDesktop.3pm
3487
0444
edit
dl
rm
File::HomeDir::MacOS9.3pm
3499
0444
edit
dl
rm
File::HomeDir::Test.3pm
3534
0444
edit
dl
rm
File::HomeDir::Unix.3pm
3638
0444
edit
dl
rm
File::HomeDir::Windows.3pm
4891
0444
edit
dl
rm
File::Path.3pm
31030
0444
edit
dl
rm
File::Slurp.3pm
23626
0444
edit
dl
rm
File::Spec.3pm
13784
0444
edit
dl
rm
File::Spec::AmigaOS.3pm
2826
0444
edit
dl
rm
File::Spec::Cygwin.3pm
3957
0444
edit
dl
rm
File::Spec::Epoc.3pm
3251
0444
edit
dl
rm
File::Spec::Functions.3pm
3799
0444
edit
dl
rm
File::Spec::Mac.3pm
18664
0444
edit
dl
rm
File::Spec::OS2.3pm
3118
0444
edit
dl
rm
File::Spec::Unix.3pm
9837
0444
edit
dl
rm
File::Spec::VMS.3pm
6389
0444
edit
dl
rm
File::Spec::Win32.3pm
6451
0444
edit
dl
rm
File::Temp.3pm
36799
0444
edit
dl
rm
File::Which.3pm
9746
0444
edit
dl
rm
Getopt::Long.3pm
52647
0444
edit
dl
rm
HDB.3pm
10947
0444
edit
dl
rm
HDB::CMDS.3pm
18894
0444
edit
dl
rm
HDB::Encode.3pm
7863
0444
edit
dl
rm
HDB::Object.3pm
10057
0444
edit
dl
rm
HTML::AsSubs.3pm
8586
0444
edit
dl
rm
HTML::Element.3pm
70793
0444
edit
dl
rm
HTML::Element::traverse.3pm
15984
0444
edit
dl
rm
HTML::Form.3pm
28158
0444
edit
dl
rm
HTML::Parse.3pm
8277
0444
edit
dl
rm
HTML::Tree.3pm
9982
0444
edit
dl
rm
HTML::Tree::AboutObjects.3pm
37918
0444
edit
dl
rm
HTML::Tree::AboutTrees.3pm
58534
0444
edit
dl
rm
HTML::Tree::Scanning.3pm
34385
0444
edit
dl
rm
HTML::TreeBuilder.3pm
30138
0444
edit
dl
rm
HTTP::Tiny.3pm
27709
0444
edit
dl
rm
IO::AtomicFile.3pm
5381
0444
edit
dl
rm
IO::Compress::Base.3pm
3506
0444
edit
dl
rm
IO::Compress::Bzip2.3pm
23260
0444
edit
dl
rm
IO::Compress::Deflate.3pm
26768
0444
edit
dl
rm
IO::Compress::FAQ.3pm
26718
0444
edit
dl
rm
IO::Compress::Gzip.3pm
34489
0444
edit
dl
rm
IO::Compress::RawDeflate.3pm
27134
0444
edit
dl
rm
IO::Compress::Zip.3pm
40870
0444
edit
dl
rm
IO::InnerFile.3pm
6035
0444
edit
dl
rm
IO::Lines.3pm
3783
0444
edit
dl
rm
IO::Pty.3pm
8579
0444
edit
dl
rm
IO::Scalar.3pm
10679
0444
edit
dl
rm
IO::ScalarArray.3pm
10528
0444
edit
dl
rm
IO::Stringy.3pm
4049
0444
edit
dl
rm
IO::Tty.3pm
8348
0444
edit
dl
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IO::Tty::Constant.3pm
10012
0444
edit
dl
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IO::Uncompress::AnyInflate.3pm
32800
0444
edit
dl
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IO::Uncompress::AnyUncompress.3pm
30767
0444
edit
dl
rm
IO::Uncompress::Base.3pm
3518
0444
edit
dl
rm
IO::Uncompress::Bunzip2.3pm
29171
0444
edit
dl
rm
IO::Uncompress::Gunzip.3pm
31719
0444
edit
dl
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IO::Uncompress::Inflate.3pm
29915
0444
edit
dl
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IO::Uncompress::RawInflate.3pm
29563
0444
edit
dl
rm
IO::Uncompress::Unzip.3pm
31279
0444
edit
dl
rm
IO::Wrap.3pm
10664
0444
edit
dl
rm
IO::WrapTie.3pm
14987
0444
edit
dl
rm
JSON::PP.3pm
50080
0444
edit
dl
rm
JSON::PP::Boolean.3pm
2667
0444
edit
dl
rm
JSON::Syck.3pm
8094
0444
edit
dl
rm
JSON::XS.3pm
89037
0444
edit
dl
rm
JSON::XS::Boolean.3pm
2857
0444
edit
dl
rm
lib::core::only.3pm
5647
0444
edit
dl
rm
local::lib.3pm
31390
0444
edit
dl
rm
LWP.3pm
28506
0444
edit
dl
rm
LWP::Authen::Ntlm.3pm
7489
0444
edit
dl
rm
LWP::ConnCache.3pm
9967
0444
edit
dl
rm
LWP::Debug.3pm
5608
0444
edit
dl
rm
LWP::MemberMixin.3pm
4821
0444
edit
dl
rm
LWP::Protocol.3pm
8350
0444
edit
dl
rm
LWP::Protocol::https.3pm
5684
0444
edit
dl
rm
LWP::RobotUA.3pm
9022
0444
edit
dl
rm
LWP::Simple.3pm
9016
0444
edit
dl
rm
LWP::UserAgent.3pm
48156
0444
edit
dl
rm
lwpcook.3pm
14838
0444
edit
dl
rm
lwptut.3pm
32441
0444
edit
dl
rm
Module::Build.3pm
44563
0444
edit
dl
rm
Module::Build::API.3pm
89267
0444
edit
dl
rm
Module::Build::Authoring.3pm
17363
0444
edit
dl
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Module::Build::Base.3pm
5157
0444
edit
dl
rm
Module::Build::Bundling.3pm
9999
0444
edit
dl
rm
Module::Build::Compat.3pm
10885
0444
edit
dl
rm
Module::Build::ConfigData.3pm
7388
0444
edit
dl
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Module::Build::Cookbook.3pm
25946
0444
edit
dl
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Module::Build::Notes.3pm
4690
0444
edit
dl
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Module::Build::Platform::aix.3pm
4472
0444
edit
dl
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Module::Build::Platform::cygwin.3pm
4505
0444
edit
dl
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Module::Build::Platform::darwin.3pm
4491
0444
edit
dl
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Module::Build::Platform::Default.3pm
4490
0444
edit
dl
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Module::Build::Platform::MacOS.3pm
5398
0444
edit
dl
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Module::Build::Platform::os2.3pm
4474
0444
edit
dl
rm
Module::Build::Platform::Unix.3pm
4481
0444
edit
dl
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Module::Build::Platform::VMS.3pm
7885
0444
edit
dl
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Module::Build::Platform::VOS.3pm
4477
0444
edit
dl
rm
Module::Build::Platform::Windows.3pm
4529
0444
edit
dl
rm
Module::Build::PPMMaker.3pm
4886
0444
edit
dl
rm
Mozilla::CA.3pm
3571
0444
edit
dl
rm
Net::CIDR::Lite.3pm
9562
0444
edit
dl
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Net::Cmd.3pm
11545
0444
edit
dl
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Net::Config.3pm
8100
0444
edit
dl
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Net::Domain.3pm
3835
0444
edit
dl
rm
Net::FTP.3pm
27341
0444
edit
dl
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Net::FTP::dataconn.3pm
3979
0444
edit
dl
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Net::HTTP.3pm
16375
0444
edit
dl
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Net::HTTP::NB.3pm
5394
0444
edit
dl
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Net::HTTPS.3pm
5438
0444
edit
dl
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Net::IP.3pm
27697
0444
edit
dl
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Net::libnetFAQ.3pm
14746
0444
edit
dl
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Net::Netrc.3pm
6729
0444
edit
dl
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Net::NNTP.3pm
23193
0444
edit
dl
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Net::POP3.3pm
12259
0444
edit
dl
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Net::SMTP.3pm
18880
0444
edit
dl
rm
Net::SSLeay.3pm
349350
0444
edit
dl
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Net::SSLeay::Handle.3pm
9127
0444
edit
dl
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Net::Time.3pm
4524
0444
edit
dl
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ok.3pm
2851
0444
edit
dl
rm
Parse::CPAN::Meta.3pm
10187
0444
edit
dl
rm
POD2::DE::local::lib.3pm
22879
0444
edit
dl
rm
POD2::PT_BR::local::lib.3pm
22762
0444
edit
dl
rm
Socket.3pm
34078
0444
edit
dl
rm
Sub::Identify.3pm
5087
0444
edit
dl
rm
SUPER.3pm
7394
0444
edit
dl
rm
Switch.3pm
19014
0444
edit
dl
rm
TAP::Base.3pm
3401
0444
edit
dl
rm
TAP::Formatter::Base.3pm
6233
0444
edit
dl
rm
TAP::Formatter::Color.3pm
3717
0444
edit
dl
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TAP::Formatter::Console.3pm
2722
0444
edit
dl
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TAP::Formatter::Console::ParallelSession.3pm
3065
0444
edit
dl
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TAP::Formatter::Console::Session.3pm
2832
0444
edit
dl
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TAP::Formatter::File.3pm
2693
0444
edit
dl
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TAP::Formatter::File::Session.3pm
2847
0444
edit
dl
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TAP::Formatter::Session.3pm
3603
0444
edit
dl
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TAP::Harness.3pm
21300
0444
edit
dl
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TAP::Harness::Beyond.3pm
19118
0444
edit
dl
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TAP::Harness::Env.3pm
5467
0444
edit
dl
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TAP::Object.3pm
4497
0444
edit
dl
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TAP::Parser.3pm
42210
0444
edit
dl
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TAP::Parser::Aggregator.3pm
8023
0444
edit
dl
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TAP::Parser::Grammar.3pm
8647
0444
edit
dl
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TAP::Parser::Iterator.3pm
4993
0444
edit
dl
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TAP::Parser::Iterator::Array.3pm
3771
0444
edit
dl
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TAP::Parser::Iterator::Process.3pm
4601
0444
edit
dl
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TAP::Parser::Iterator::Stream.3pm
3712
0444
edit
dl
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TAP::Parser::IteratorFactory.3pm
6904
0444
edit
dl
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TAP::Parser::Multiplexer.3pm
4646
0444
edit
dl
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TAP::Parser::Result.3pm
7512
0444
edit
dl
rm
TAP::Parser::Result::Bailout.3pm
3293
0444
edit
dl
rm
TAP::Parser::Result::Comment.3pm
3118
0444
edit
dl
rm
TAP::Parser::Result::Plan.3pm
4173
0444
edit
dl
rm
TAP::Parser::Result::Pragma.3pm
3073
0444
edit
dl
rm
TAP::Parser::Result::Test.3pm
7114
0444
edit
dl
rm
TAP::Parser::Result::Unknown.3pm
2973
0444
edit
dl
rm
TAP::Parser::Result::Version.3pm
3154
0444
edit
dl
rm
TAP::Parser::Result::YAML.3pm
3086
0444
edit
dl
rm
TAP::Parser::ResultFactory.3pm
5523
0444
edit
dl
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TAP::Parser::Scheduler.3pm
8113
0444
edit
dl
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TAP::Parser::Scheduler::Job.3pm
4301
0444
edit
dl
rm
TAP::Parser::Scheduler::Spinner.3pm
3346
0444
edit
dl
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TAP::Parser::Source.3pm
8170
0444
edit
dl
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TAP::Parser::SourceHandler.3pm
7559
0444
edit
dl
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TAP::Parser::SourceHandler::Executable.3pm
5297
0444
edit
dl
rm
TAP::Parser::SourceHandler::File.3pm
4567
0444
edit
dl
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TAP::Parser::SourceHandler::Handle.3pm
4425
0444
edit
dl
rm
TAP::Parser::SourceHandler::Perl.3pm
6262
0444
edit
dl
rm
TAP::Parser::SourceHandler::RawTAP.3pm
4434
0444
edit
dl
rm
TAP::Parser::YAMLish::Reader.3pm
3995
0444
edit
dl
rm
TAP::Parser::YAMLish::Writer.3pm
4879
0444
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Edit:
/usr/local/share/man/man3/Template::Tutorial::Web.3pm
(34118B)
.\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28) .\" .\" Standard preamble: .\" ======================================================================== .de Sp \" Vertical space (when we can't use .PP) .if t .sp .5v .if n .sp .. .de Vb \" Begin verbatim text .ft CW .nf .ne \\$1 .. .de Ve \" End verbatim text .ft R .fi .. .\" Set up some character translations and predefined strings. \*(-- will .\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left .\" double quote, and \*(R" will give a right double quote. \*(C+ will .\" give a nicer C++. Capital omega is used to do unbreakable dashes and .\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff, .\" nothing in troff, for use with C<>. .tr \(*W- .ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' .ie n \{\ . ds -- \(*W- . ds PI pi . if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch . if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch . ds L" "" . ds R" "" . ds C` "" . ds C' "" 'br\} .el\{\ . ds -- \|\(em\| . ds PI \(*p . ds L" `` . ds R" '' . ds C` . ds C' 'br\} .\" .\" Escape single quotes in literal strings from groff's Unicode transform. .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" .\" If the F register is turned on, we'll generate index entries on stderr for .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index .\" entries marked with X<> in POD. Of course, you'll have to process the .\" output yourself in some meaningful fashion. .\" .\" Avoid warning from groff about undefined register 'F'. .de IX .. .nr rF 0 .if \n(.g .if rF .nr rF 1 .if (\n(rF:(\n(.g==0)) \{ . if \nF \{ . de IX . tm Index:\\$1\t\\n%\t"\\$2" .. . if !\nF==2 \{ . nr % 0 . nr F 2 . \} . \} .\} .rr rF .\" .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). .\" Fear. Run. Save yourself. No user-serviceable parts. . \" fudge factors for nroff and troff .if n \{\ . ds #H 0 . ds #V .8m . ds #F .3m . ds #[ \f1 . ds #] \fP .\} .if t \{\ . ds #H ((1u-(\\\\n(.fu%2u))*.13m) . ds #V .6m . ds #F 0 . ds #[ \& . ds #] \& .\} . \" simple accents for nroff and troff .if n \{\ . ds ' \& . ds ` \& . ds ^ \& . ds , \& . ds ~ ~ . ds / .\} .if t \{\ . ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" . ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' . ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' . ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' . ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' . ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' .\} . \" troff and (daisy-wheel) nroff accents .ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V' .ds 8 \h'\*(#H'\(*b\h'-\*(#H' .ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#] .ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H' .ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u' .ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#] .ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#] .ds ae a\h'-(\w'a'u*4/10)'e .ds Ae A\h'-(\w'A'u*4/10)'E . \" corrections for vroff .if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u' .if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u' . \" for low resolution devices (crt and lpr) .if \n(.H>23 .if \n(.V>19 \ \{\ . ds : e . ds 8 ss . ds o a . ds d- d\h'-1'\(ga . ds D- D\h'-1'\(hy . ds th \o'bp' . ds Th \o'LP' . ds ae ae . ds Ae AE .\} .rm #[ #] #H #V #F C .\" ======================================================================== .\" .IX Title "Template::Tutorial::Web 3" .TH Template::Tutorial::Web 3 "2014-04-23" "perl v5.16.3" "User Contributed Perl Documentation" .\" For nroff, turn off justification. Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" Template::Tutorial::Web \- Generating Web Content Using the Template Toolkit .SH "Overview" .IX Header "Overview" This tutorial document provides a introduction to the Template Toolkit and demonstrates some of the typical ways it may be used for generating web content. It covers the generation of static pages from templates using the tpage and ttree scripts and then goes on to show dynamic content generation using \s-1CGI\s0 scripts and Apache/mod_perl handlers. .PP Various features of the Template Toolkit are introduced and described briefly and explained by use of example. For further information, see Template, Template::Manual and the various sections within it. e.g .PP .Vb 3 \& perldoc Template # Template.pm module usage \& perldoc Template::Manual # index to manual \& perldoc Template::Manual::Config # e.g. configuration options .Ve .PP The documentation is also available in \s-1HTML\s0 format to read online, or download from the Template Toolkit web site: .PP .Vb 1 \& http://template\-toolkit.org/docs/ .Ve .SH "Introduction" .IX Header "Introduction" The Template Toolkit is a set of Perl modules which collectively implement a template processing system. .PP A template is a text document with special markup tags embedded in it. By default, the Template Toolkit uses '\f(CW\*(C`[%\*(C'\fR' and '\f(CW\*(C`%]\*(C'\fR' to denote the start and end of a tag. Here's an example: .PP .Vb 1 \& [% INCLUDE header %] \& \& People of [% planet %], your attention please. \& \& This is [% captain %] of the \& Galactic Hyperspace Planning Council. \& \& As you will no doubt be aware, the plans \& for development of the outlying regions \& of the Galaxy require the building of a \& hyperspatial express route through your \& star system, and regrettably your planet \& is one of those scheduled for destruction. \& \& The process will take slightly less than \& [% time %]. \& \& Thank you. \& \& [% INCLUDE footer %] .Ve .PP Tags can contain simple \fIvariables\fR (like \f(CW\*(C`planet\*(C'\fR and \f(CW\*(C`captain\*(C'\fR) and more complex \fIdirectives\fR that start with an upper case keyword (like \f(CW\*(C`INCLUDE\*(C'\fR). A directive is an instruction that tells the template processor to perform some action, like processing another template (\f(CW\*(C`header\*(C'\fR and \f(CW\*(C`footer\*(C'\fR in this example) and inserting the output into the current template. In fact, the simple variables we mentioned are actually \f(CW\*(C`GET\*(C'\fR directives, but the \f(CW\*(C`GET\*(C'\fR keyword is optional. .PP .Vb 2 \& People of [% planet %], your attention please. # short form \& People of [% GET planet %], your attention please. # long form .Ve .PP Other directives include \f(CW\*(C`SET\*(C'\fR to set a variable value (the \f(CW\*(C`SET\*(C'\fR keyword is also optional), \f(CW\*(C`FOREACH\*(C'\fR to iterate through a list of values, and \f(CW\*(C`IF\*(C'\fR, \&\f(CW\*(C`UNLESS\*(C'\fR, \f(CW\*(C`ELSIF\*(C'\fR and \f(CW\*(C`ELSE\*(C'\fR to declare conditional blocks. .PP The Template Toolkit processes all \fItext\fR files equally, regardless of what kind of content they contain. So you can use \s-1TT\s0 to generate \s-1HTML, XML, CSS,\s0 Javascript, Perl, \s-1RTF,\s0 LaTeX, or any other text-based format. In this tutorial, however, we'll be concentrating on generating \s-1HTML\s0 for web pages. .SH "Generating Static Web Content" .IX Header "Generating Static Web Content" Here's an example of a template used to generate an \s-1HTML\s0 document. .PP .Vb 2 \& [% INCLUDE header \& title = \*(AqThis is an HTML example\*(Aq; \& \& pages = [ \& { url = \*(Aqhttp://foo.org\*(Aq \& title = \*(AqThe Foo Organisation\*(Aq \& } \& { url = \*(Aqhttp://bar.org\*(Aq \& title = \*(AqThe Bar Organisation\*(Aq \& } \& ] \& %] \& <h1>Some Interesting Links</h1> \& <ul> \& [% FOREACH page IN pages %] \& <li><a href="[% page.url %]">[% page.title %]</a> \& [% END %] \& </ul> \& \& [% INCLUDE footer %] .Ve .PP This example shows how the \f(CW\*(C`INCLUDE\*(C'\fR directive is used to load and process separate '\f(CW\*(C`header\*(C'\fR' and '\f(CW\*(C`footer\*(C'\fR' template files, including the output in the current document. These files might look something like this: .PP header: .PP .Vb 5 \& <html> \& <head> \& <title>[% title %]</title> \& </head> \& <body> .Ve .PP footer: .PP .Vb 5 \& <div class="copyright"> \& © Copyright 2007 Arthur Dent \& </div> \& </body> \& </html> .Ve .PP The example also uses the \f(CW\*(C`FOREACH\*(C'\fR directive to iterate through the \&'\f(CW\*(C`pages\*(C'\fR' list to build a table of links. In this example, we have defined this list within the template to contain a number of hash references, each containing a '\f(CW\*(C`url\*(C'\fR' and '\f(CW\*(C`title\*(C'\fR' member. The \f(CW\*(C`FOREACH\*(C'\fR directive iterates through the list, aliasing '\f(CW\*(C`page\*(C'\fR' to each item (in this case, hash array references). The \f(CW\*(C`[% page.url %]\*(C'\fR and \f(CW\*(C`[% page.title %]\*(C'\fR directives then access the individual values in the hash arrays and insert them into the document. .SS "Using tpage" .IX Subsection "Using tpage" Having created a template file we can now process it to generate some real output. The quickest and easiest way to do this is to use the tpage script. This is provided as part of the Template Toolkit and should be installed in your usual Perl bin directory. .PP Assuming you saved your template file as \fIexample.html\fR, you would run the command: .PP .Vb 1 \& $ tpage example.html .Ve .PP This will process the template file, sending the output to \f(CW\*(C`STDOUT\*(C'\fR (i.e. whizzing past you on the screen). You may want to redirect the output to a file but be careful not to specify the same name as the template file, or you'll overwrite it. You may want to use one prefix for your templates (e.g. \&'\f(CW\*(C`.tt\*(C'\fR') and another (e.g. '\f(CW\*(C`.html\*(C'\fR') for the output files. .PP .Vb 1 \& $ tpage example.tt > example.html .Ve .PP Or you can redirect the output to another directory. e.g. .PP .Vb 1 \& $ tpage templates/example.tt > html/example.html .Ve .PP The output generated would look like this: .PP .Vb 10 \& <html> \& <head> \& <title>This is an HTML example</title> \& </head> \& <body> \& <h1>Some Interesting Links</h1> \& <ul> \& <li><a href="http://foo.org">The Foo Organsiation</a> \& <li><a href="http://bar.org">The Bar Organsiation</a> \& </ul> \& <div class="copyright"> \& © Copyright 2007 Arthur Dent \& </div> \& </body> \& </html> .Ve .PP The \fIheader\fR and \fIfooter\fR template files have been included (assuming you created them and they're in the current directory) and the link data has been built into an \s-1HTML\s0 list. .SS "Using ttree" .IX Subsection "Using ttree" The tpage script gives you a simple and easy way to process a single template without having to write any Perl code. The <ttree:Template::Tools::ttree> script, also distributed as part of the Template Toolkit, provides a more flexible way to process a number of template documents in one go. .PP The first time you run the script, it will ask you if it should create a configuration file (\fI.ttreerc\fR) in your home directory. Answer \f(CW\*(C`y\*(C'\fR to have it create the file. .PP The <ttree:Template::Tools::ttree> documentation describes how you can change the location of this file and also explains the syntax and meaning of the various options in the file. Comments are written to the sample configuration file which should also help. .PP In brief, the configuration file describes the directories in which template files are to be found (\f(CW\*(C`src\*(C'\fR), where the corresponding output should be written to (\f(CW\*(C`dest\*(C'\fR), and any other directories (\f(CW\*(C`lib\*(C'\fR) that may contain template files that you plan to \f(CW\*(C`INCLUDE\*(C'\fR into your source documents. You can also specify processing options (such as \f(CW\*(C`verbose\*(C'\fR and \f(CW\*(C`recurse\*(C'\fR) and provide regular expression to match files that you don't want to process (\f(CW\*(C`ignore\*(C'\fR, \&\f(CW\*(C`accept\*(C'\fR)> or should be copied instead of being processed as templates (\f(CW\*(C`copy\*(C'\fR). .PP An example \fI.ttreerc\fR file is shown here: .PP \&\f(CW$HOME\fR/.ttreerc: .PP .Vb 2 \& verbose \& recurse \& \& # this is where I keep other ttree config files \& cfg = ~/.ttree \& \& src = ~/websrc/src \& lib = ~/websrc/lib \& dest = ~/public_html/test \& \& ignore = \eb(CVS|RCS)\eb \& ignore = ^# .Ve .PP You can create many different configuration files and store them in the directory specified in the \f(CW\*(C`cfg\*(C'\fR option, shown above. You then add the \f(CW\*(C`\-f filename\*(C'\fR option to \f(CW\*(C`ttree\*(C'\fR to have it read that file. .PP When you run the script, it compares all the files in the \f(CW\*(C`src\*(C'\fR directory (including those in sub-directories if the \f(CW\*(C`recurse\*(C'\fR option is set), with those in the \f(CW\*(C`dest\*(C'\fR directory. If the destination file doesn't exist or has an earlier modification time than the corresponding source file, then the source will be processed with the output written to the destination file. The \f(CW\*(C`\-a\*(C'\fR option forces all files to be processed, regardless of modification times. .PP The script \fIdoesn't\fR process any of the files in the \f(CW\*(C`lib\*(C'\fR directory, but it does add it to the \f(CW\*(C`INCLUDE_PATH\*(C'\fR for the template processor so that it can locate these files via an \f(CW\*(C`INCLUDE\*(C'\fR, \f(CW\*(C`PROCESS\*(C'\fR or \f(CW\*(C`WRAPPER\*(C'\fR directive. Thus, the \f(CW\*(C`lib\*(C'\fR directory is an excellent place to keep template elements such as header, footers, etc., that aren't complete documents in their own right. .PP You can also specify various Template Toolkit options from the configuration file. Consult the ttree documentation and help summary (\f(CW\*(C`ttree \-h\*(C'\fR) for full details. e.g. .PP \&\f(CW$HOME\fR/.ttreerc: .PP .Vb 3 \& pre_process = config \& interpolate \& post_chomp .Ve .PP The \f(CW\*(C`pre_process\*(C'\fR option allows you to specify a template file which should be processed before each file. Unsurprisingly, there's also a \&\f(CW\*(C`post_process\*(C'\fR option to add a template after each file. In the fragment above, we have specified that the \f(CW\*(C`config\*(C'\fR template should be used as a prefix template. We can create this file in the \f(CW\*(C`lib\*(C'\fR directory and use it to define some common variables, including those web page links we defined earlier and might want to re-use in other templates. We could also include an \s-1HTML\s0 header, title, or menu bar in this file which would then be prepended to each and every template file, but for now we'll keep all that in a separate \f(CW\*(C`header\*(C'\fR file. .PP \&\f(CW$lib\fR/config: .PP .Vb 10 \& [% root = \*(Aq~/abw\*(Aq \& home = "$root/index.html" \& images = "$root/images" \& email = \*(Aqabw@wardley.org\*(Aq \& graphics = 1 \& webpages = [ \& { url => \*(Aqhttp://foo.org\*(Aq, title => \*(AqThe Foo Organsiation\*(Aq } \& { url => \*(Aqhttp://bar.org\*(Aq, title => \*(AqThe Bar Organsiation\*(Aq } \& ] \& %] .Ve .PP Assuming you've created or copied the \f(CW\*(C`header\*(C'\fR and \f(CW\*(C`footer\*(C'\fR files from the earlier example into your \f(CW\*(C`lib\*(C'\fR directory, you can now start to create web pages like the following in your \f(CW\*(C`src\*(C'\fR directory and process them with \f(CW\*(C`ttree\*(C'\fR. .PP \&\f(CW$src\fR/newpage.html: .PP .Vb 3 \& [% INCLUDE header \& title = \*(AqAnother Template Toolkit Test Page\*(Aq \& %] \& \& <a href="[% home %]">Home</a> \& <a href="mailto:[% email %]">Email</a> \& \& [% IF graphics %] \& <img src="[% images %]/logo.gif" align=right width=60 height=40> \& [% END %] \& \& [% INCLUDE footer %] .Ve .PP Here we've shown how pre-defined variables can be used as flags to enable certain feature (e.g. \f(CW\*(C`graphics\*(C'\fR) and to specify common items such as an email address and \s-1URL\s0's for the home page, images directory and so on. This approach allows you to define these values once so that they're consistent across all pages and can easily be changed to new values. .PP When you run \fIttree\fR, you should see output similar to the following (assuming you have the verbose flag set). .PP .Vb 1 \& ttree 2.9 (Template Toolkit version 2.20) \& \& Source: /home/abw/websrc/src \& Destination: /home/abw/public_html/test \& Include Path: [ /home/abw/websrc/lib ] \& Ignore: [ \eb(CVS|RCS)\eb, ^# ] \& Copy: [ ] \& Accept: [ * ] \& \& + newpage.html .Ve .PP The \f(CW\*(C`+\*(C'\fR in front of the \f(CW\*(C`newpage.html\*(C'\fR filename shows that the file was processed, with the output being written to the destination directory. If you run the same command again, you'll see the following line displayed instead showing a \f(CW\*(C`\-\*(C'\fR and giving a reason why the file wasn't processed. .PP .Vb 1 \& \- newpage.html (not modified) .Ve .PP It has detected a \f(CW\*(C`newpage.html\*(C'\fR in the destination directory which is more recent than that in the source directory and so hasn't bothered to waste time re-processing it. To force all files to be processed, use the \f(CW\*(C`\-a\*(C'\fR option. You can also specify one or more filenames as command line arguments to \f(CW\*(C`ttree\*(C'\fR: .PP .Vb 1 \& tpage newpage.html .Ve .PP This is what the destination page looks like. .PP \&\f(CW$dest\fR/newpage.html: .PP .Vb 5 \& <html> \& <head> \& <title>Another Template Toolkit Test Page</title> \& </head> \& <body> \& \& <a href="~/abw/index.html">Home</a> \& <a href="mailto:abw@wardley.org">Email me</a> \& <img src="~/abw/images/logo.gif" align=right width=60 height=40> \& \& <div class="copyright"> \& © Copyright 2007 Arthur Dent \& </div> \& </body> \& </html> .Ve .PP You can add as many documents as you like to the \f(CW\*(C`src\*(C'\fR directory and \&\f(CW\*(C`ttree\*(C'\fR will apply the same process to them all. In this way, it is possible to build an entire tree of static content for a web site with a single command. The added benefit is that you can be assured of consistency in links, header style, or whatever else you choose to implement in terms of common templates elements or variables. .SH "Dynamic Content Generation Via CGI Script" .IX Header "Dynamic Content Generation Via CGI Script" The Template module provides a simple front-end to the Template Toolkit for use in \s-1CGI\s0 scripts and Apache/mod_perl handlers. Simply \f(CW\*(C`use\*(C'\fR the Template module, create an object instance with the \fInew()\fR method and then call the \&\fIprocess()\fR method on the object, passing the name of the template file as a parameter. The second parameter passed is a reference to a hash array of variables that we want made available to the template: .PP .Vb 4 \& #!/usr/bin/perl \& use strict; \& use warnings; \& use Template; \& \& my $file = \*(Aqsrc/greeting.html\*(Aq; \& my $vars = { \& message => "Hello World\en" \& }; \& \& my $template = Template\->new(); \& \& $template\->process($file, $vars) \& || die "Template process failed: ", $template\->error(), "\en"; .Ve .PP So that our scripts will work with the same template files as our earlier examples, we'll can add some configuration options to the constructor to tell it about our environment: .PP .Vb 6 \& my $template\->new({ \& # where to find template files \& INCLUDE_PATH => [\*(Aq/home/abw/websrc/src\*(Aq, \*(Aq/home/abw/websrc/lib\*(Aq], \& # pre\-process lib/config to define any extra values \& PRE_PROCESS => \*(Aqconfig\*(Aq, \& }); .Ve .PP Note that here we specify the \f(CW\*(C`config\*(C'\fR file as a \f(CW\*(C`PRE_PROCESS\*(C'\fR option. This means that the templates we process can use the same global variables defined earlier for our static pages. We don't have to replicate their definitions in this script. However, we can supply additional data and functionality specific to this script via the hash of variables that we pass to the \f(CW\*(C`process()\*(C'\fR method. .PP These entries in this hash may contain simple text or other values, references to lists, others hashes, sub-routines or objects. The Template Toolkit will automatically apply the correct procedure to access these different types when you use the variables in a template. .PP Here's a more detailed example to look over. Amongst the different template variables we define in \f(CW$vars\fR, we create a reference to a \&\s-1CGI\s0 object and a \f(CW\*(C`get_user_projects()\*(C'\fR sub-routine. .PP .Vb 5 \& #!/usr/bin/perl \& use strict; \& use warnings; \& use Template; \& use CGI; \& \& $| = 1; \& print "Content\-type: text/html\en\en"; \& \& my $file = \*(Aquserinfo.html\*(Aq; \& my $vars = { \& \*(Aqversion\*(Aq => 3.14, \& \*(Aqdays\*(Aq => [ qw( mon tue wed thu fri sat sun ) ], \& \*(Aqworklist\*(Aq => \e&get_user_projects, \& \*(Aqcgi\*(Aq => CGI\->new(), \& \*(Aqme\*(Aq => { \& \*(Aqid\*(Aq => \*(Aqabw\*(Aq, \& \*(Aqname\*(Aq => \*(AqAndy Wardley\*(Aq, \& }, \& }; \& \& sub get_user_projects { \& my $user = shift; \& my @projects = ... # do something to retrieve data \& return \e@projects; \& } \& \& my $template = Template\->new({ \& INCLUDE_PATH => \*(Aq/home/abw/websrc/src:/home/abw/websrc/lib\*(Aq, \& PRE_PROCESS => \*(Aqconfig\*(Aq, \& }); \& \& $template\->process($file, $vars) \& || die $template\->error(); .Ve .PP Here's a sample template file that we might create to build the output for this script. .PP \&\f(CW$src\fR/userinfo.html: .PP .Vb 3 \& [% INCLUDE header \& title = \*(AqTemplate Toolkit CGI Test\*(Aq \& %] \& \& <a href="mailto:[% email %]">Email [% me.name %]</a> \& \& <p>This is version [% version %]</p> \& \& <h3>Projects</h3> \& <ul> \& [% FOREACH project IN worklist(me.id) %] \& <li> <a href="[% project.url %]">[% project.name %]</a> \& [% END %] \& </ul> \& \& [% INCLUDE footer %] .Ve .PP This example shows how we've separated the Perl implementation (code) from the presentation (\s-1HTML\s0). This not only makes them easier to maintain in isolation, but also allows the re-use of existing template elements such as headers and footers, etc. By using template to create the output of your \s-1CGI\s0 scripts, you can give them the same consistency as your static pages built via ttree or other means. .PP Furthermore, we can modify our script so that it processes any one of a number of different templates based on some condition. A \s-1CGI\s0 script to maintain a user database, for example, might process one template to provide an empty form for new users, the same form with some default values set for updating an existing user record, a third template for listing all users in the system, and so on. You can use any Perl functionality you care to write to implement the logic of your application and then choose one or other template to generate the desired output for the application state. .SH "Dynamic Content Generation Via Apache/Mod_Perl Handler" .IX Header "Dynamic Content Generation Via Apache/Mod_Perl Handler" \&\fB\s-1NOTE:\s0\fR the Apache::Template module is available from \s-1CPAN\s0 and provides a simple and easy to use Apache/mod_perl interface to the Template Toolkit. Although basic, it implements most, if not all of what is described below, and it avoids the need to write your own handler. However, in many cases, you'll want to write your own handler to customise processing for your own need, and this section will show you how to get started. .PP The Template module can be used from an Apache/mod_perl handler. Here's an example of a typical Apache \fIhttpd.conf\fR file: .PP .Vb 3 \& PerlModule CGI; \& PerlModule Template \& PerlModule MyOrg::Apache::User \& \& PerlSetVar websrc_root /home/abw/websrc \& \& <Location /user/bin> \& SetHandler perl\-script \& PerlHandler MyOrg::Apache::User \& </Location> .Ve .PP This defines a location called \f(CW\*(C`/user/bin\*(C'\fR to which all requests will be forwarded to the \f(CW\*(C`handler()\*(C'\fR method of the \f(CW\*(C`MyOrg::Apache::User\*(C'\fR module. That module might look something like this: .PP .Vb 1 \& package MyOrg::Apache::User; \& \& use strict; \& use vars qw( $VERSION ); \& use Apache::Constants qw( :common ); \& use Template qw( :template ); \& use CGI; \& \& $VERSION = 1.59; \& \& sub handler { \& my $r = shift; \& \& my $websrc = $r\->dir_config(\*(Aqwebsrc_root\*(Aq) \& or return fail($r, SERVER_ERROR, \& "\*(Aqwebsrc_root\*(Aq not specified"); \& \& my $template = Template\->new({ \& INCLUDE_PATH => "$websrc/src/user:$websrc/lib", \& PRE_PROCESS => \*(Aqconfig\*(Aq, \& OUTPUT => $r, # direct output to Apache request \& }); \& \& my $params = { \& uri => $r\->uri, \& cgi => CGI\->new, \& }; \& \& # use the path_info to determine which template file to process \& my $file = $r\->path_info; \& $file =~ s[^/][]; \& \& $r\->content_type(\*(Aqtext/html\*(Aq); \& $r\->send_http_header; \& \& $template\->process($file, $params) \& || return fail($r, SERVER_ERROR, $template\->error()); \& \& return OK; \& } \& \& sub fail { \& my ($r, $status, $message) = @_; \& $r\->log_reason($message, $r\->filename); \& return $status; \& } .Ve .PP The handler accepts the request and uses it to determine the \f(CW\*(C`websrc_root\*(C'\fR value from the config file. This is then used to define an \f(CW\*(C`INCLUDE_PATH\*(C'\fR for a new Template object. The \s-1URI\s0 is extracted from the request and a \&\s-1CGI\s0 object is created. These are both defined as template variables. .PP The name of the template file itself is taken from the \f(CW\*(C`PATH_INFO\*(C'\fR element of the request. In this case, it would comprise the part of the \s-1URL \s0 coming after \f(CW\*(C`/user/bin\*(C'\fR, e.g for \f(CW\*(C`/user/bin/edit\*(C'\fR, the template file would be \f(CW\*(C`edit\*(C'\fR located in \f(CW\*(C`$websrc/src/user\*(C'\fR. The headers are sent and the template file is processed. All output is sent directly to the \&\f(CW\*(C`print()\*(C'\fR method of the Apache request object. .SH "Using Plugins to Extend Functionality" .IX Header "Using Plugins to Extend Functionality" As we've already shown, it is possible to bind Perl data and functions to template variables when creating dynamic content via a \s-1CGI\s0 script or Apache/mod_perl process. The Template Toolkit also supports a plugin interface which allows you define such additional data and/or functionality in a separate module and then load and use it as required with the \f(CW\*(C`USE\*(C'\fR directive. .PP The main benefit to this approach is that you can load the extension into any template document, even those that are processed \*(L"statically\*(R" by \&\f(CW\*(C`tpage\*(C'\fR or \f(CW\*(C`ttree\*(C'\fR. You \fIdon't\fR need to write a Perl wrapper to explicitly load the module and make it available via the stash. .PP Let's demonstrate this principle using the \f(CW\*(C`DBI\*(C'\fR plugin written by Simon Matthews (available from \s-1CPAN\s0). You can create this template in your \f(CW\*(C`src\*(C'\fR directory and process it using \f(CW\*(C`ttree\*(C'\fR to see the results. Of course, this example relies on the existence of the appropriate \s-1SQL\s0 database but you should be able to adapt it to your own resources, or at least use it as a demonstrative example of what's possible. .PP .Vb 3 \& [% INCLUDE header \& title = \*(AqUser Info\*(Aq \& %] \& \& [% USE DBI(\*(Aqdbi:mSQL:mydbname\*(Aq) %] \& \& <table border=0 width="100%"> \& <tr> \& <th>User ID</th> \& <th>Name</th> \& <th>Email</th> \& </tr> \& [% FOREACH user IN DBI.query(\*(AqSELECT * FROM user ORDER BY id\*(Aq) %] \& <tr> \& <td>[% user.id %]</td> \& <td>[% user.name %]</td> \& <td>[% user.email %]</td> \& </tr> \& [% END %] \& </table> \& \& [% INCLUDE footer %] .Ve .PP A plugin is simply a Perl module in a known location and conforming to a known standard such that the Template Toolkit can find and load it automatically. You can create your own plugin by inheriting from the Template::Plugin module. .PP Here's an example which defines some data items (\f(CW\*(C`foo\*(C'\fR and \f(CW\*(C`people\*(C'\fR) and also an object method (\f(CW\*(C`bar\*(C'\fR). We'll call the plugin \f(CW\*(C`FooBar\*(C'\fR for want of a better name and create it in the \f(CW\*(C`MyOrg::Template::Plugin::FooBar\*(C'\fR package. We've added a \f(CW\*(C`MyOrg\*(C'\fR to the regular \f(CW\*(C`Template::Plugin::*\*(C'\fR package to avoid any conflict with existing plugins. .PP .Vb 3 \& package MyOrg::Template::Plugin::FooBar; \& use base \*(AqTemplate::Plugin\*(Aq \& our $VERSION = 1.23; \& \& sub new { \& my ($class, $context, @params) = @_; \& \& bless { \& _CONTEXT => $context, \& foo => 25, \& people => [ \*(Aqtom\*(Aq, \*(Aqdick\*(Aq, \*(Aqharry\*(Aq ], \& }, $class; \& } \& \& sub bar { \& my ($self, @params) = @_; \& # ...do something... \& return $some_value; \& } .Ve .PP The plugin constructor \f(CW\*(C`new()\*(C'\fR receives the class name as the first parameter, as is usual in Perl, followed by a reference to something called a Template::Context object. You don't need to worry too much about this at the moment, other than to know that it's the main processing object for the Template Toolkit. It provides access to the functionality of the processor and some plugins may need to communicate with it. We don't at this stage, but we'll save the reference anyway in the \f(CW\*(C`_CONTEXT\*(C'\fR member. The leading underscore is a convention which indicates that this item is private and the Template Toolkit won't attempt to access this member. The other members defined, \f(CW\*(C`foo\*(C'\fR and \f(CW\*(C`people\*(C'\fR are regular data items which will be made available to templates using this plugin. Following the context reference are passed any additional parameters specified with the \s-1USE\s0 directive, such as the data source parameter, \f(CW\*(C`dbi:mSQL:mydbname\*(C'\fR, that we used in the earlier \s-1DBI\s0 example. .PP If you don't or can't install it to the regular place for your Perl modules (perhaps because you don't have the required privileges) then you can set the \s-1PERL5LIB\s0 environment variable to specify another location. If you're using \f(CW\*(C`ttree\*(C'\fR then you can add the following line to your configuration file instead. .PP \&\f(CW$HOME\fR/.ttreerc: .PP .Vb 1 \& perl5lib = /path/to/modules .Ve .PP One further configuration item must be added to inform the toolkit of the new package name we have adopted for our plugins: .PP \&\f(CW$HOME\fR/.ttreerc: .PP .Vb 1 \& plugin_base = \*(AqMyOrg::Template::Plugin\*(Aq .Ve .PP If you're writing Perl code to control the Template modules directly, then this value can be passed as a configuration parameter when you create the module. .PP .Vb 1 \& use Template; \& \& my $template = Template\->new({ \& PLUGIN_BASE => \*(AqMyOrg::Template::Plugin\*(Aq \& }); .Ve .PP Now we can create a template which uses this plugin: .PP .Vb 3 \& [% INCLUDE header \& title = \*(AqFooBar Plugin Test\*(Aq \& %] \& \& [% USE FooBar %] \& \& Some values available from this plugin: \& [% FooBar.foo %] [% FooBar.bar %] \& \& The users defined in the \*(Aqpeople\*(Aq list: \& [% FOREACH uid = FooBar.people %] \& * [% uid %] \& [% END %] \& \& [% INCLUDE footer %] .Ve .PP The \f(CW\*(C`foo\*(C'\fR, \f(CW\*(C`bar\*(C'\fR, and \f(CW\*(C`people\*(C'\fR items of the FooBar plugin are automatically resolved to the appropriate data items or method calls on the underlying object. .PP Using this approach, it is possible to create application functionality in a single module which can then be loaded and used on demand in any template. The simple interface between template directives and plugin objects allows complex, dynamic content to be built from a few simple template documents without knowing anything about the underlying implementation. .SH "AUTHOR" .IX Header "AUTHOR" Andy Wardley <abw@wardley.org> <http://wardley.org/> .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright (C) 1996\-2007 Andy Wardley. All Rights Reserved. .PP This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
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