FM / man3

/usr/local/share/man/man3

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 rm
CPAN::Meta::History.3pm	7855	0444	edit dl rm
CPAN::Meta::History::Meta_1_0.3pm	9973	0444	edit dl rm
CPAN::Meta::History::Meta_1_1.3pm	12410	0444	edit dl rm
CPAN::Meta::History::Meta_1_2.3pm	22224	0444	edit dl rm
CPAN::Meta::History::Meta_1_3.3pm	23974	0444	edit dl rm
CPAN::Meta::History::Meta_1_4.3pm	24565	0444	edit dl rm
CPAN::Meta::Merge.3pm	5285	0444	edit dl rm
CPAN::Meta::Prereqs.3pm	7380	0444	edit dl rm
CPAN::Meta::Requirements.3pm	12308	0444	edit dl rm
CPAN::Meta::Spec.3pm	45592	0444	edit dl rm
CPAN::Meta::Validator.3pm	4215	0444	edit dl rm
CPAN::Meta::YAML.3pm	4230	0444	edit dl rm
Crypt::OpenSSL::Random.3pm	5634	0444	edit dl rm
Curses.3pm	37580	0444	edit dl rm
Curses::UI.3pm	15619	0444	edit dl rm
Curses::UI::Buttonbox.3pm	8908	0444	edit dl rm
Curses::UI::Calendar.3pm	8203	0444	edit dl rm
Curses::UI::Checkbox.3pm	6509	0444	edit dl rm
Curses::UI::Color.3pm	5903	0444	edit dl rm
Curses::UI::Common.3pm	6498	0444	edit dl rm
Curses::UI::Container.3pm	9041	0444	edit dl rm
Curses::UI::Dialog::Basic.3pm	5213	0444	edit dl rm
Curses::UI::Dialog::Calendar.3pm	4761	0444	edit dl rm
Curses::UI::Dialog::Dirbrowser.3pm	5369	0444	edit dl rm
Curses::UI::Dialog::Error.3pm	4307	0444	edit dl rm
Curses::UI::Dialog::Filebrowser.3pm	6889	0444	edit dl rm
Curses::UI::Dialog::Progress.3pm	5774	0444	edit dl rm
Curses::UI::Dialog::Question.3pm	5277	0444	edit dl rm
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 rm
Curses::UI::Tutorial.3pm	8555	0444	edit dl rm
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 rm
Date::Language.3pm	3809	0444	edit dl rm
Date::Language::Bulgarian.3pm	3675	0444	edit dl rm
Date::Language::Hungarian.3pm	3091	0444	edit dl rm
Date::Parse.3pm	5402	0444	edit dl rm
Digest::SHA.3pm	25759	0444	edit dl rm
Expect.3pm	60229	0444	edit dl rm
ExtUtils::CBuilder.3pm	11923	0444	edit dl rm
ExtUtils::CBuilder::Platform::Windows.3pm	3117	0444	edit dl rm
ExtUtils::Command.3pm	5942	0444	edit dl rm
ExtUtils::Command::MM.3pm	5723	0444	edit dl rm
ExtUtils::Liblist.3pm	12679	0444	edit dl rm
ExtUtils::MakeMaker.3pm	79357	0444	edit dl rm
ExtUtils::MakeMaker::Config.3pm	2587	0444	edit dl rm
ExtUtils::MakeMaker::FAQ.3pm	26829	0444	edit dl rm
ExtUtils::MakeMaker::Locale.3pm	11168	0444	edit dl rm
ExtUtils::MakeMaker::Tutorial.3pm	8389	0444	edit dl rm
ExtUtils::Manifest.3pm	11961	0444	edit dl rm
ExtUtils::Mkbootstrap.3pm	3459	0444	edit dl rm
ExtUtils::Mksymlists.3pm	6699	0444	edit dl rm
ExtUtils::MM.3pm	2829	0444	edit dl rm
ExtUtils::MM_AIX.3pm	3044	0444	edit dl rm
ExtUtils::MM_Any.3pm	31129	0444	edit dl rm
ExtUtils::MM_BeOS.3pm	2798	0444	edit dl rm
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 rm
ExtUtils::MM_MacOS.3pm	2987	0444	edit dl rm
ExtUtils::MM_NW5.3pm	3200	0444	edit dl rm
ExtUtils::MM_OS2.3pm	2886	0444	edit dl rm
ExtUtils::MM_QNX.3pm	2942	0444	edit dl rm
ExtUtils::MM_Unix.3pm	21419	0444	edit dl rm
ExtUtils::MM_UWIN.3pm	3051	0444	edit dl rm
ExtUtils::MM_VMS.3pm	14900	0444	edit dl rm
ExtUtils::MM_VOS.3pm	2926	0444	edit dl rm
ExtUtils::MM_Win32.3pm	5919	0444	edit dl rm
ExtUtils::MM_Win95.3pm	3276	0444	edit dl rm
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 rm
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 rm
IO::Tty::Constant.3pm	10012	0444	edit dl rm
IO::Uncompress::AnyInflate.3pm	32800	0444	edit dl rm
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 rm
IO::Uncompress::Inflate.3pm	29915	0444	edit dl rm
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 rm
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 rm
Module::Build::Cookbook.3pm	25946	0444	edit dl rm
Module::Build::Notes.3pm	4690	0444	edit dl rm
Module::Build::Platform::aix.3pm	4472	0444	edit dl rm
Module::Build::Platform::cygwin.3pm	4505	0444	edit dl rm
Module::Build::Platform::darwin.3pm	4491	0444	edit dl rm
Module::Build::Platform::Default.3pm	4490	0444	edit dl rm
Module::Build::Platform::MacOS.3pm	5398	0444	edit dl rm
Module::Build::Platform::os2.3pm	4474	0444	edit dl rm
Module::Build::Platform::Unix.3pm	4481	0444	edit dl rm
Module::Build::Platform::VMS.3pm	7885	0444	edit dl rm
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 rm
Net::Cmd.3pm	11545	0444	edit dl rm
Net::Config.3pm	8100	0444	edit dl rm
Net::Domain.3pm	3835	0444	edit dl rm
Net::FTP.3pm	27341	0444	edit dl rm
Net::FTP::dataconn.3pm	3979	0444	edit dl rm
Net::HTTP.3pm	16375	0444	edit dl rm
Net::HTTP::NB.3pm	5394	0444	edit dl rm
Net::HTTPS.3pm	5438	0444	edit dl rm
Net::IP.3pm	27697	0444	edit dl rm
Net::libnetFAQ.3pm	14746	0444	edit dl rm
Net::Netrc.3pm	6729	0444	edit dl rm
Net::NNTP.3pm	23193	0444	edit dl rm
Net::POP3.3pm	12259	0444	edit dl rm
Net::SMTP.3pm	18880	0444	edit dl rm
Net::SSLeay.3pm	349350	0444	edit dl rm
Net::SSLeay::Handle.3pm	9127	0444	edit dl rm
Net::Time.3pm	4524	0444	edit dl rm
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 rm
TAP::Formatter::Console.3pm	2722	0444	edit dl rm
TAP::Formatter::Console::ParallelSession.3pm	3065	0444	edit dl rm
TAP::Formatter::Console::Session.3pm	2832	0444	edit dl rm
TAP::Formatter::File.3pm	2693	0444	edit dl rm
TAP::Formatter::File::Session.3pm	2847	0444	edit dl rm
TAP::Formatter::Session.3pm	3603	0444	edit dl rm
TAP::Harness.3pm	21300	0444	edit dl rm
TAP::Harness::Beyond.3pm	19118	0444	edit dl rm
TAP::Harness::Env.3pm	5467	0444	edit dl rm
TAP::Object.3pm	4497	0444	edit dl rm
TAP::Parser.3pm	42210	0444	edit dl rm
TAP::Parser::Aggregator.3pm	8023	0444	edit dl rm
TAP::Parser::Grammar.3pm	8647	0444	edit dl rm
TAP::Parser::Iterator.3pm	4993	0444	edit dl rm
TAP::Parser::Iterator::Array.3pm	3771	0444	edit dl rm
TAP::Parser::Iterator::Process.3pm	4601	0444	edit dl rm
TAP::Parser::Iterator::Stream.3pm	3712	0444	edit dl rm
TAP::Parser::IteratorFactory.3pm	6904	0444	edit dl rm
TAP::Parser::Multiplexer.3pm	4646	0444	edit dl rm
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 rm
TAP::Parser::Scheduler.3pm	8113	0444	edit dl rm
TAP::Parser::Scheduler::Job.3pm	4301	0444	edit dl rm
TAP::Parser::Scheduler::Spinner.3pm	3346	0444	edit dl rm
TAP::Parser::Source.3pm	8170	0444	edit dl rm
TAP::Parser::SourceHandler.3pm	7559	0444	edit dl rm
TAP::Parser::SourceHandler::Executable.3pm	5297	0444	edit dl rm
TAP::Parser::SourceHandler::File.3pm	4567	0444	edit dl rm
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	edit dl rm
Template.3pm	27909	0444	edit dl rm
Template::Base.3pm	8149	0444	edit dl rm
Template::Config.3pm	8687	0444	edit dl rm
Template::Constants.3pm	7815	0444	edit dl rm
Template::Context.3pm	26637	0444	edit dl rm
Template::Directive.3pm	4821	0444	edit dl rm
Template::Document.3pm	11829	0444	edit dl rm
Template::Exception.3pm	6763	0444	edit dl rm
Template::FAQ.3pm	14564	0444	edit dl rm
Template::Filters.3pm	9817	0444	edit dl rm
Template::Grammar.3pm	5039	0444	edit dl rm
Template::Iterator.3pm	11413	0444	edit dl rm
Template::Manual.3pm	6317	0444	edit dl rm
Template::Manual::Config.3pm	79504	0444	edit dl rm
Template::Manual::Credits.3pm	8246	0444	edit dl rm
Template::Manual::Directives.3pm	77293	0444	edit dl rm
Template::Manual::Filters.3pm	20810	0444	edit dl rm
Template::Manual::Internals.3pm	23433	0444	edit dl rm
Template::Manual::Intro.3pm	14092	0444	edit dl rm
Template::Manual::Plugins.3pm	13780	0444	edit dl rm
Template::Manual::Syntax.3pm	14549	0444	edit dl rm
Template::Manual::Variables.3pm	33110	0444	edit dl rm
Template::Manual::Views.3pm	25953	0444	edit dl rm
Template::Manual::VMethods.3pm	28195	0444	edit dl rm
Template::Modules.3pm	9827	0444	edit dl rm
Template::Namespace::Constants.3pm	6002	0444	edit dl rm
Template::Parser.3pm	9917	0444	edit dl rm
Template::Plugin.3pm	10937	0444	edit dl rm
Template::Plugin::Assert.3pm	5446	0444	edit dl rm
Template::Plugin::CGI.3pm	6188	0444	edit dl rm
Template::Plugin::Datafile.3pm	6601	0444	edit dl rm
Template::Plugin::Date.3pm	9538	0444	edit dl rm
Template::Plugin::Directory.3pm	11979	0444	edit dl rm
Template::Plugin::Dumper.3pm	6078	0444	edit dl rm
Template::Plugin::File.3pm	13009	0444	edit dl rm
Template::Plugin::Filter.3pm	12936	0444	edit dl rm
Template::Plugin::Format.3pm	4895	0444	edit dl rm
Template::Plugin::HTML.3pm	7823	0444	edit dl rm
Template::Plugin::Image.3pm	11950	0444	edit dl rm
Template::Plugin::Iterator.3pm	5061	0444	edit dl rm
Template::Plugin::Math.3pm	6623	0444	edit dl rm
Template::Plugin::Pod.3pm	4784	0444	edit dl rm
Template::Plugin::Procedural.3pm	5631	0444	edit dl rm
Template::Plugin::Scalar.3pm	5032	0444	edit dl rm
Template::Plugin::String.3pm	17263	0444	edit dl rm
Template::Plugin::Table.3pm	11145	0444	edit dl rm
Template::Plugin::URL.3pm	8080	0444	edit dl rm
Template::Plugin::View.3pm	5479	0444	edit dl rm
Template::Plugin::Wrap.3pm	6433	0444	edit dl rm
Template::Plugins.3pm	9733	0444	edit dl rm
Template::Provider.3pm	14678	0444	edit dl rm
Template::Service.3pm	14813	0444	edit dl rm
Template::Stash.3pm	11983	0444	edit dl rm
Template::Stash::Context.3pm	7130	0444	edit dl rm
Template::Stash::XS.3pm	6644	0444	edit dl rm
Template::Test.3pm	15524	0444	edit dl rm
Template::Toolkit.3pm	9227	0444	edit dl rm
Template::Tools.3pm	5001	0444	edit dl rm
Template::Tools::tpage.3pm	5806	0444	edit dl rm
Template::Tools::ttree.3pm	16567	0444	edit dl rm
Template::Tutorial.3pm	4566	0444	edit dl rm
Template::Tutorial::Datafile.3pm	19539	0444	edit dl rm
Template::Tutorial::Web.3pm	34118	0444	edit dl rm
Template::View.3pm	12618	0444	edit dl rm
Template::VMethods.3pm	4688	0444	edit dl rm
Term::ReadKey.3pm	13029	0444	edit dl rm
Test2.3pm	9556	0444	edit dl rm
Test2::API.3pm	30424	0444	edit dl rm
Test2::API::Breakage.3pm	4988	0444	edit dl rm
Test2::API::Context.3pm	17574	0444	edit dl rm
Test2::API::Instance.3pm	12404	0444	edit dl rm
Test2::API::Stack.3pm	6568	0444	edit dl rm
Test2::Event.3pm	9189	0444	edit dl rm
Test2::Event::Bail.3pm	3470	0444	edit dl rm
Test2::Event::Diag.3pm	3338	0444	edit dl rm
Test2::Event::Exception.3pm	3520	0444	edit dl rm
Test2::Event::Generic.3pm	7662	0444	edit dl rm
Test2::Event::Info.3pm	4261	0444	edit dl rm
Test2::Event::Note.3pm	3323	0444	edit dl rm
Test2::Event::Ok.3pm	4255	0444	edit dl rm
Test2::Event::Plan.3pm	3907	0444	edit dl rm
Test2::Event::Skip.3pm	3665	0444	edit dl rm
Test2::Event::Subtest.3pm	3573	0444	edit dl rm
Test2::Event::Waiting.3pm	3107	0444	edit dl rm
Test2::Formatter.3pm	5208	0444	edit dl rm
Test2::Formatter::TAP.3pm	9255	0444	edit dl rm
Test2::Hub.3pm	16755	0444	edit dl rm
Test2::Hub::Interceptor.3pm	2937	0444	edit dl rm
Test2::Hub::Interceptor::Terminator.3pm	2980	0444	edit dl rm
Test2::Hub::Subtest.3pm	3803	0444	edit dl rm
Test2::IPC.3pm	3324	0444	edit dl rm
Test2::IPC::Driver.3pm	9512	0444	edit dl rm
Test2::IPC::Driver::Files.3pm	3822	0444	edit dl rm
Test2::Transition.3pm	18406	0444	edit dl rm
Test2::Util.3pm	5123	0444	edit dl rm
Test2::Util::ExternalMeta.3pm	5594	0444	edit dl rm
Test2::Util::HashBase.3pm	7463	0444	edit dl rm
Test2::Util::Trace.3pm	5577	0444	edit dl rm
Test::Builder.3pm	26915	0444	edit dl rm
Test::Builder::Formatter.3pm	3656	0444	edit dl rm
Test::Builder::IO::Scalar.3pm	9740	0444	edit dl rm
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Edit: /usr/local/share/man/man3/IO::Compress::FAQ.3pm (26718B)

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.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
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.\" ========================================================================
.\"
.IX Title "IO::Compress::FAQ 3"
.TH IO::Compress::FAQ 3 "2015-09-26" "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"
IO::Compress::FAQ \-\- Frequently Asked Questions about IO::Compress
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
Common questions answered.
.SH "GENERAL"
.IX Header "GENERAL"
.SS "Compatibility with Unix compress/uncompress."
.IX Subsection "Compatibility with Unix compress/uncompress."
Although \f(CW\*(C`Compress::Zlib\*(C'\fR has a pair of functions called \f(CW\*(C`compress\*(C'\fR and
\&\f(CW\*(C`uncompress\*(C'\fR, they are \fInot\fR related to the Unix programs of the same
name. The \f(CW\*(C`Compress::Zlib\*(C'\fR module is not compatible with Unix
\&\f(CW\*(C`compress\*(C'\fR.
.PP
If you have the \f(CW\*(C`uncompress\*(C'\fR program available, you can use this to read
compressed files
.PP
.Vb 4
\&    open F, "uncompress \-c $filename |";
\&    while (<F>)
\&    {
\&        ...
.Ve
.PP
Alternatively, if you have the \f(CW\*(C`gunzip\*(C'\fR program available, you can use
this to read compressed files
.PP
.Vb 4
\&    open F, "gunzip \-c $filename |";
\&    while (<F>)
\&    {
\&        ...
.Ve
.PP
and this to write compress files, if you have the \f(CW\*(C`compress\*(C'\fR program
available
.PP
.Vb 4
\&    open F, "| compress \-c $filename ";
\&    print F "data";
\&    ...
\&    close F ;
.Ve
.SS "Accessing .tar.Z files"
.IX Subsection "Accessing .tar.Z files"
The \f(CW\*(C`Archive::Tar\*(C'\fR module can optionally use \f(CW\*(C`Compress::Zlib\*(C'\fR (via the
\&\f(CW\*(C`IO::Zlib\*(C'\fR module) to access tar files that have been compressed with
\&\f(CW\*(C`gzip\*(C'\fR. Unfortunately tar files compressed with the Unix \f(CW\*(C`compress\*(C'\fR
utility cannot be read by \f(CW\*(C`Compress::Zlib\*(C'\fR and so cannot be directly
accessed by \f(CW\*(C`Archive::Tar\*(C'\fR.
.PP
If the \f(CW\*(C`uncompress\*(C'\fR or \f(CW\*(C`gunzip\*(C'\fR programs are available, you can use one
of these workarounds to read \f(CW\*(C`.tar.Z\*(C'\fR files from \f(CW\*(C`Archive::Tar\*(C'\fR
.PP
Firstly with \f(CW\*(C`uncompress\*(C'\fR
.PP
.Vb 3
\&    use strict;
\&    use warnings;
\&    use Archive::Tar;
\&
\&    open F, "uncompress \-c $filename |";
\&    my $tar = Archive::Tar\->new(*F);
\&    ...
.Ve
.PP
and this with \f(CW\*(C`gunzip\*(C'\fR
.PP
.Vb 3
\&    use strict;
\&    use warnings;
\&    use Archive::Tar;
\&
\&    open F, "gunzip \-c $filename |";
\&    my $tar = Archive::Tar\->new(*F);
\&    ...
.Ve
.PP
Similarly, if the \f(CW\*(C`compress\*(C'\fR program is available, you can use this to
write a \f(CW\*(C`.tar.Z\*(C'\fR file
.PP
.Vb 4
\&    use strict;
\&    use warnings;
\&    use Archive::Tar;
\&    use IO::File;
\&
\&    my $fh = new IO::File "| compress \-c >$filename";
\&    my $tar = Archive::Tar\->new();
\&    ...
\&    $tar\->write($fh);
\&    $fh\->close ;
.Ve
.SS "How do I recompress using a different compression?"
.IX Subsection "How do I recompress using a different compression?"
This is easier that you might expect if you realise that all the
\&\f(CW\*(C`IO::Compress::*\*(C'\fR objects are derived from \f(CW\*(C`IO::File\*(C'\fR and that all the
\&\f(CW\*(C`IO::Uncompress::*\*(C'\fR modules can read from an \f(CW\*(C`IO::File\*(C'\fR filehandle.
.PP
So, for example, say you have a file compressed with gzip that you want to
recompress with bzip2. Here is all that is needed to carry out the
recompression.
.PP
.Vb 2
\&    use IO::Uncompress::Gunzip \*(Aq:all\*(Aq;
\&    use IO::Compress::Bzip2 \*(Aq:all\*(Aq;
\&
\&    my $gzipFile = "somefile.gz";
\&    my $bzipFile = "somefile.bz2";
\&
\&    my $gunzip = new IO::Uncompress::Gunzip $gzipFile
\&        or die "Cannot gunzip $gzipFile: $GunzipError\en" ;
\&
\&    bzip2 $gunzip => $bzipFile 
\&        or die "Cannot bzip2 to $bzipFile: $Bzip2Error\en" ;
.Ve
.PP
Note, there is a limitation of this technique. Some compression file
formats store extra information along with the compressed data payload. For
example, gzip can optionally store the original filename and Zip stores a
lot of information about the original file. If the original compressed file
contains any of this extra information, it will not be transferred to the
new compressed file using the technique above.
.SH "ZIP"
.IX Header "ZIP"
.SS "What Compression Types do IO::Compress::Zip & IO::Uncompress::Unzip support?"
.IX Subsection "What Compression Types do IO::Compress::Zip & IO::Uncompress::Unzip support?"
The following compression formats are supported by \f(CW\*(C`IO::Compress::Zip\*(C'\fR and
\&\f(CW\*(C`IO::Uncompress::Unzip\*(C'\fR
.IP "\(bu" 5
Store (method 0)
.Sp
No compression at all.
.IP "\(bu" 5
Deflate (method 8)
.Sp
This is the default compression used when creating a zip file with
\&\f(CW\*(C`IO::Compress::Zip\*(C'\fR.
.IP "\(bu" 5
Bzip2 (method 12)
.Sp
Only supported if the \f(CW\*(C`IO\-Compress\-Bzip2\*(C'\fR module is installed.
.IP "\(bu" 5
Lzma (method 14)
.Sp
Only supported if the \f(CW\*(C`IO\-Compress\-Lzma\*(C'\fR module is installed.
.SS "Can I Read/Write Zip files larger the 4 Gig?"
.IX Subsection "Can I Read/Write Zip files larger the 4 Gig?"
Yes, both the \f(CW\*(C`IO\-Compress\-Zip\*(C'\fR and \f(CW\*(C`IO\-Uncompress\-Unzip\*(C'\fR  modules
support the zip feature called \fIZip64\fR. That allows them to read/write
files/buffers larger than 4Gig.
.PP
If you are creating a Zip file using the one-shot interface, and any of the
input files is greater than 4Gig, a zip64 complaint zip file will be
created.
.PP
.Vb 1
\&    zip "really\-large\-file" => "my.zip";
.Ve
.PP
Similarly with the one-shot interface, if the input is a buffer larger than
4 Gig, a zip64 complaint zip file will be created.
.PP
.Vb 1
\&    zip \e$really_large_buffer => "my.zip";
.Ve
.PP
The one-shot interface allows you to force the creation of a zip64 zip file
by including the \f(CW\*(C`Zip64\*(C'\fR option.
.PP
.Vb 1
\&    zip $filehandle => "my.zip", Zip64 => 1;
.Ve
.PP
If you want to create a zip64 zip file with the \s-1OO\s0 interface you must
specify the \f(CW\*(C`Zip64\*(C'\fR option.
.PP
.Vb 1
\&    my $zip = new IO::Compress::Zip "whatever", Zip64 => 1;
.Ve
.PP
When uncompressing with \f(CW\*(C`IO\-Uncompress\-Unzip\*(C'\fR, it will automatically
detect if the zip file is zip64.
.PP
If you intend to manipulate the Zip64 zip files created with
\&\f(CW\*(C`IO\-Compress\-Zip\*(C'\fR using an external zip/unzip, make sure that it supports
Zip64.
.PP
In particular, if you are using Info-Zip you need to have zip version 3.x
or better to update a Zip64 archive and unzip version 6.x to read a zip64
archive.
.SS "Can I write more that 64K entries is a Zip files?"
.IX Subsection "Can I write more that 64K entries is a Zip files?"
Yes. Zip64 allows this. See previous question.
.SS "Zip Resources"
.IX Subsection "Zip Resources"
The primary reference for zip files is the \*(L"appnote\*(R" document available at
<http://www.pkware.com/documents/casestudies/APPNOTE.TXT>
.PP
An alternatively is the Info-Zip appnote. This is available from
<ftp://ftp.info\-zip.org/pub/infozip/doc/>
.SH "GZIP"
.IX Header "GZIP"
.SS "Gzip Resources"
.IX Subsection "Gzip Resources"
The primary reference for gzip files is \s-1RFC 1952
\&\s0<http://www.faqs.org/rfcs/rfc1952.html>
.PP
The primary site for gzip is \fIhttp://www.gzip.org\fR.
.SS "Dealing with concatenated gzip files"
.IX Subsection "Dealing with concatenated gzip files"
If the gunzip program encounters a file containing multiple gzip files
concatenated together it will automatically uncompress them all.
The example below illustrates this behaviour
.PP
.Vb 5
\&    $ echo abc | gzip \-c >x.gz
\&    $ echo def | gzip \-c >>x.gz
\&    $ gunzip \-c x.gz 
\&    abc
\&    def
.Ve
.PP
By default \f(CW\*(C`IO::Uncompress::Gunzip\*(C'\fR will \fInot\fR behave like the gunzip
program. It will only uncompress the first gzip data stream in the file, as
shown below
.PP
.Vb 2
\&    $ perl \-MIO::Uncompress::Gunzip=:all \-e \*(Aqgunzip "x.gz" => \e*STDOUT\*(Aq
\&    abc
.Ve
.PP
To force \f(CW\*(C`IO::Uncompress::Gunzip\*(C'\fR to uncompress all the gzip data streams,
include the \f(CW\*(C`MultiStream\*(C'\fR option, as shown below
.PP
.Vb 3
\&    $ perl \-MIO::Uncompress::Gunzip=:all \-e \*(Aqgunzip "x.gz" => \e*STDOUT, MultiStream => 1\*(Aq
\&    abc
\&    def
.Ve
.SS "Reading bgzip files with IO::Uncompress::Gunzip"
.IX Subsection "Reading bgzip files with IO::Uncompress::Gunzip"
A \f(CW\*(C`bgzip\*(C'\fR file consists of a series of valid gzip-compliant data streams
concatenated together. To read a file created by \f(CW\*(C`bgzip\*(C'\fR with
\&\f(CW\*(C`IO::Uncompress::Gunzip\*(C'\fR use the \f(CW\*(C`MultiStream\*(C'\fR option as shown in the
previous section.
.PP
See the section titled \*(L"The \s-1BGZF\s0 compression format\*(R" in
\&\fIhttp://samtools.github.io/hts\-specs/SAMv1.pdf\fR for a definition of
\&\f(CW\*(C`bgzip\*(C'\fR.
.SH "ZLIB"
.IX Header "ZLIB"
.SS "Zlib Resources"
.IX Subsection "Zlib Resources"
The primary site for the \fIzlib\fR compression library is
\&\fIhttp://www.zlib.org\fR.
.SH "Bzip2"
.IX Header "Bzip2"
.SS "Bzip2 Resources"
.IX Subsection "Bzip2 Resources"
The primary site for bzip2 is \fIhttp://www.bzip.org\fR.
.SS "Dealing with Concatenated bzip2 files"
.IX Subsection "Dealing with Concatenated bzip2 files"
If the bunzip2 program encounters a file containing multiple bzip2 files
concatenated together it will automatically uncompress them all.
The example below illustrates this behaviour
.PP
.Vb 5
\&    $ echo abc | bzip2 \-c >x.bz2
\&    $ echo def | bzip2 \-c >>x.bz2
\&    $ bunzip2 \-c x.bz2
\&    abc
\&    def
.Ve
.PP
By default \f(CW\*(C`IO::Uncompress::Bunzip2\*(C'\fR will \fInot\fR behave like the bunzip2
program. It will only uncompress the first bunzip2 data stream in the file, as
shown below
.PP
.Vb 2
\&    $ perl \-MIO::Uncompress::Bunzip2=:all \-e \*(Aqbunzip2 "x.bz2" => \e*STDOUT\*(Aq
\&    abc
.Ve
.PP
To force \f(CW\*(C`IO::Uncompress::Bunzip2\*(C'\fR to uncompress all the bzip2 data streams,
include the \f(CW\*(C`MultiStream\*(C'\fR option, as shown below
.PP
.Vb 3
\&    $ perl \-MIO::Uncompress::Bunzip2=:all \-e \*(Aqbunzip2 "x.bz2" => \e*STDOUT, MultiStream => 1\*(Aq
\&    abc
\&    def
.Ve
.SS "Interoperating with Pbzip2"
.IX Subsection "Interoperating with Pbzip2"
Pbzip2 (<http://compression.ca/pbzip2/>) is a parallel implementation of
bzip2. The output from pbzip2 consists of a series of concatenated bzip2
data streams.
.PP
By default \f(CW\*(C`IO::Uncompress::Bzip2\*(C'\fR will only uncompress the first bzip2
data stream in a pbzip2 file. To uncompress the complete pbzip2 file you
must include the \f(CW\*(C`MultiStream\*(C'\fR option, like this.
.PP
.Vb 2
\&    bunzip2 $input => \e$output, MultiStream => 1 
\&        or die "bunzip2 failed: $Bunzip2Error\en";
.Ve
.SH "HTTP & NETWORK"
.IX Header "HTTP & NETWORK"
.SS "Apache::GZip Revisited"
.IX Subsection "Apache::GZip Revisited"
Below is a mod_perl Apache compression module, called \f(CW\*(C`Apache::GZip\*(C'\fR,
taken from
\&\fIhttp://perl.apache.org/docs/tutorials/tips/mod_perl_tricks/mod_perl_tricks.html#On_the_Fly_Compression\fR
.PP
.Vb 2
\&  package Apache::GZip;
\&  #File: Apache::GZip.pm
\&  
\&  use strict vars;
\&  use Apache::Constants \*(Aq:common\*(Aq;
\&  use Compress::Zlib;
\&  use IO::File;
\&  use constant GZIP_MAGIC => 0x1f8b;
\&  use constant OS_MAGIC => 0x03;
\&  
\&  sub handler {
\&      my $r = shift;
\&      my ($fh,$gz);
\&      my $file = $r\->filename;
\&      return DECLINED unless $fh=IO::File\->new($file);
\&      $r\->header_out(\*(AqContent\-Encoding\*(Aq=>\*(Aqgzip\*(Aq);
\&      $r\->send_http_header;
\&      return OK if $r\->header_only;
\&  
\&      tie *STDOUT,\*(AqApache::GZip\*(Aq,$r;
\&      print($_) while <$fh>;
\&      untie *STDOUT;
\&      return OK;
\&  }
\&  
\&  sub TIEHANDLE {
\&      my($class,$r) = @_;
\&      # initialize a deflation stream
\&      my $d = deflateInit(\-WindowBits=>\-MAX_WBITS()) || return undef;
\&  
\&      # gzip header \-\- don\*(Aqt ask how I found out
\&      $r\->print(pack("nccVcc",GZIP_MAGIC,Z_DEFLATED,0,time(),0,OS_MAGIC));
\&  
\&      return bless { r   => $r,
\&                     crc =>  crc32(undef),
\&                     d   => $d,
\&                     l   =>  0 
\&                   },$class;
\&  }
\&  
\&  sub PRINT {
\&      my $self = shift;
\&      foreach (@_) {
\&        # deflate the data
\&        my $data = $self\->{d}\->deflate($_);
\&        $self\->{r}\->print($data);
\&        # keep track of its length and crc
\&        $self\->{l} += length($_);
\&        $self\->{crc} = crc32($_,$self\->{crc});
\&      }
\&  }
\&  
\&  sub DESTROY {
\&     my $self = shift;
\&     
\&     # flush the output buffers
\&     my $data = $self\->{d}\->flush;
\&     $self\->{r}\->print($data);
\&     
\&     # print the CRC and the total length (uncompressed)
\&     $self\->{r}\->print(pack("LL",@{$self}{qw/crc l/}));
\&  }
\&   
\&  1;
.Ve
.PP
Here's the Apache configuration entry you'll need to make use of it.  Once
set it will result in everything in the /compressed directory will be
compressed automagically.
.PP
.Vb 4
\&  <Location /compressed>
\&     SetHandler  perl\-script
\&     PerlHandler Apache::GZip
\&  </Location>
.Ve
.PP
Although at first sight there seems to be quite a lot going on in
\&\f(CW\*(C`Apache::GZip\*(C'\fR, you could sum up what the code was doing as follows \*(--
read the contents of the file in \f(CW\*(C`$r\->filename\*(C'\fR, compress it and write
the compressed data to standard output. That's all.
.PP
This code has to jump through a few hoops to achieve this because
.IP "1." 4
The gzip support in \f(CW\*(C`Compress::Zlib\*(C'\fR version 1.x can only work with a real
filesystem filehandle. The filehandles used by Apache modules are not
associated with the filesystem.
.IP "2." 4
That means all the gzip support has to be done by hand \- in this case by
creating a tied filehandle to deal with creating the gzip header and
trailer.
.PP
\&\f(CW\*(C`IO::Compress::Gzip\*(C'\fR doesn't have that filehandle limitation (this was one
of the reasons for writing it in the first place). So if
\&\f(CW\*(C`IO::Compress::Gzip\*(C'\fR is used instead of \f(CW\*(C`Compress::Zlib\*(C'\fR the whole tied
filehandle code can be removed. Here is the rewritten code.
.PP
.Vb 1
\&  package Apache::GZip;
\&  
\&  use strict vars;
\&  use Apache::Constants \*(Aq:common\*(Aq;
\&  use IO::Compress::Gzip;
\&  use IO::File;
\&  
\&  sub handler {
\&      my $r = shift;
\&      my ($fh,$gz);
\&      my $file = $r\->filename;
\&      return DECLINED unless $fh=IO::File\->new($file);
\&      $r\->header_out(\*(AqContent\-Encoding\*(Aq=>\*(Aqgzip\*(Aq);
\&      $r\->send_http_header;
\&      return OK if $r\->header_only;
\&
\&      my $gz = new IO::Compress::Gzip \*(Aq\-\*(Aq, Minimal => 1
\&          or return DECLINED ;
\&
\&      print $gz $_ while <$fh>;
\&  
\&      return OK;
\&  }
.Ve
.PP
or even more succinctly, like this, using a one-shot gzip
.PP
.Vb 1
\&  package Apache::GZip;
\&  
\&  use strict vars;
\&  use Apache::Constants \*(Aq:common\*(Aq;
\&  use IO::Compress::Gzip qw(gzip);
\&  
\&  sub handler {
\&      my $r = shift;
\&      $r\->header_out(\*(AqContent\-Encoding\*(Aq=>\*(Aqgzip\*(Aq);
\&      $r\->send_http_header;
\&      return OK if $r\->header_only;
\&
\&      gzip $r\->filename => \*(Aq\-\*(Aq, Minimal => 1
\&        or return DECLINED ;
\&
\&      return OK;
\&  }
\&   
\&  1;
.Ve
.PP
The use of one-shot \f(CW\*(C`gzip\*(C'\fR above just reads from \f(CW\*(C`$r\->filename\*(C'\fR and
writes the compressed data to standard output.
.PP
Note the use of the \f(CW\*(C`Minimal\*(C'\fR option in the code above. When using gzip
for Content-Encoding you should \fIalways\fR use this option. In the example
above it will prevent the filename being included in the gzip header and
make the size of the gzip data stream a slight bit smaller.
.SS "Compressed files and Net::FTP"
.IX Subsection "Compressed files and Net::FTP"
The \f(CW\*(C`Net::FTP\*(C'\fR module provides two low-level methods called \f(CW\*(C`stor\*(C'\fR and
\&\f(CW\*(C`retr\*(C'\fR that both return filehandles. These filehandles can used with the
\&\f(CW\*(C`IO::Compress/Uncompress\*(C'\fR modules to compress or uncompress files read
from or written to an \s-1FTP\s0 Server on the fly, without having to create a
temporary file.
.PP
Firstly, here is code that uses \f(CW\*(C`retr\*(C'\fR to uncompressed a file as it is
read from the \s-1FTP\s0 Server.
.PP
.Vb 2
\&    use Net::FTP;
\&    use IO::Uncompress::Gunzip qw(:all);
\&
\&    my $ftp = new Net::FTP ...
\&
\&    my $retr_fh = $ftp\->retr($compressed_filename);
\&    gunzip $retr_fh => $outFilename, AutoClose => 1
\&        or die "Cannot uncompress \*(Aq$compressed_file\*(Aq: $GunzipError\en";
.Ve
.PP
and this to compress a file as it is written to the \s-1FTP\s0 Server
.PP
.Vb 2
\&    use Net::FTP;
\&    use IO::Compress::Gzip qw(:all);
\&
\&    my $stor_fh = $ftp\->stor($filename);
\&    gzip "filename" => $stor_fh, AutoClose => 1
\&        or die "Cannot compress \*(Aq$filename\*(Aq: $GzipError\en";
.Ve
.SH "MISC"
.IX Header "MISC"
.ie n .SS "Using ""InputLength"" to uncompress data embedded in a larger file/buffer."
.el .SS "Using \f(CWInputLength\fP to uncompress data embedded in a larger file/buffer."
.IX Subsection "Using InputLength to uncompress data embedded in a larger file/buffer."
A fairly common use-case is where compressed data is embedded in a larger
file/buffer and you want to read both.
.PP
As an example consider the structure of a zip file. This is a well-defined
file format that mixes both compressed and uncompressed sections of data in
a single file.
.PP
For the purposes of this discussion you can think of a zip file as sequence
of compressed data streams, each of which is prefixed by an uncompressed
local header. The local header contains information about the compressed
data stream, including the name of the compressed file and, in particular,
the length of the compressed data stream.
.PP
To illustrate how to use \f(CW\*(C`InputLength\*(C'\fR here is a script that walks a zip
file and prints out how many lines are in each compressed file (if you
intend write code to walking through a zip file for real see
\&\*(L"Walking through a zip file\*(R" in IO::Uncompress::Unzip ). Also, although
this example uses the zlib-based compression, the technique can be used by
the other \f(CW\*(C`IO::Uncompress::*\*(C'\fR modules.
.PP
.Vb 2
\&    use strict;
\&    use warnings;
\&
\&    use IO::File;
\&    use IO::Uncompress::RawInflate qw(:all);
\&
\&    use constant ZIP_LOCAL_HDR_SIG  => 0x04034b50;
\&    use constant ZIP_LOCAL_HDR_LENGTH => 30;
\&
\&    my $file = $ARGV[0] ;
\&
\&    my $fh = new IO::File "<$file"
\&                or die "Cannot open \*(Aq$file\*(Aq: $!\en";
\&
\&    while (1)
\&    {
\&        my $sig;
\&        my $buffer;
\&
\&        my $x ;
\&        ($x = $fh\->read($buffer, ZIP_LOCAL_HDR_LENGTH)) == ZIP_LOCAL_HDR_LENGTH 
\&            or die "Truncated file: $!\en";
\&
\&        my $signature = unpack ("V", substr($buffer, 0, 4));
\&
\&        last unless $signature == ZIP_LOCAL_HDR_SIG;
\&
\&        # Read Local Header
\&        my $gpFlag             = unpack ("v", substr($buffer, 6, 2));
\&        my $compressedMethod   = unpack ("v", substr($buffer, 8, 2));
\&        my $compressedLength   = unpack ("V", substr($buffer, 18, 4));
\&        my $uncompressedLength = unpack ("V", substr($buffer, 22, 4));
\&        my $filename_length    = unpack ("v", substr($buffer, 26, 2)); 
\&        my $extra_length       = unpack ("v", substr($buffer, 28, 2));
\&
\&        my $filename ;
\&        $fh\->read($filename, $filename_length) == $filename_length 
\&            or die "Truncated file\en";
\&
\&        $fh\->read($buffer, $extra_length) == $extra_length
\&            or die "Truncated file\en";
\&
\&        if ($compressedMethod != 8 && $compressedMethod != 0)
\&        {
\&            warn "Skipping file \*(Aq$filename\*(Aq \- not deflated $compressedMethod\en";
\&            $fh\->read($buffer, $compressedLength) == $compressedLength
\&                or die "Truncated file\en";
\&            next;
\&        }
\&
\&        if ($compressedMethod == 0 && $gpFlag & 8 == 8)
\&        {
\&            die "Streamed Stored not supported for \*(Aq$filename\*(Aq\en";
\&        }
\&
\&        next if $compressedLength == 0;
\&
\&        # Done reading the Local Header
\&
\&        my $inf = new IO::Uncompress::RawInflate $fh,
\&                            Transparent => 1,
\&                            InputLength => $compressedLength
\&          or die "Cannot uncompress $file [$filename]: $RawInflateError\en"  ;
\&
\&        my $line_count = 0;
\&
\&        while (<$inf>)
\&        {
\&            ++ $line_count;
\&        }
\&
\&        print "$filename: $line_count\en";
\&    }
.Ve
.PP
The majority of the code above is concerned with reading the zip local
header data. The code that I want to focus on is at the bottom.
.PP
.Vb 1
\&    while (1) {
\&    
\&        # read local zip header data
\&        # get $filename
\&        # get $compressedLength
\&
\&        my $inf = new IO::Uncompress::RawInflate $fh,
\&                            Transparent => 1,
\&                            InputLength => $compressedLength
\&          or die "Cannot uncompress $file [$filename]: $RawInflateError\en"  ;
\&
\&        my $line_count = 0;
\&
\&        while (<$inf>)
\&        {
\&            ++ $line_count;
\&        }
\&
\&        print "$filename: $line_count\en";
\&    }
.Ve
.PP
The call to \f(CW\*(C`IO::Uncompress::RawInflate\*(C'\fR creates a new filehandle \f(CW$inf\fR
that can be used to read from the parent filehandle \f(CW$fh\fR, uncompressing
it as it goes. The use of the \f(CW\*(C`InputLength\*(C'\fR option will guarantee that
\&\fIat most\fR \f(CW$compressedLength\fR bytes of compressed data will be read from
the \f(CW$fh\fR filehandle (The only exception is for an error case like a
truncated file or a corrupt data stream).
.PP
This means that once RawInflate is finished \f(CW$fh\fR will be left at the
byte directly after the compressed data stream.
.PP
Now consider what the code looks like without \f(CW\*(C`InputLength\*(C'\fR
.PP
.Vb 1
\&    while (1) {
\&    
\&        # read local zip header data
\&        # get $filename
\&        # get $compressedLength
\&
\&        # read all the compressed data into $data
\&        read($fh, $data, $compressedLength);
\&
\&        my $inf = new IO::Uncompress::RawInflate \e$data,
\&                            Transparent => 1,
\&          or die "Cannot uncompress $file [$filename]: $RawInflateError\en"  ;
\&
\&        my $line_count = 0;
\&
\&        while (<$inf>)
\&        {
\&            ++ $line_count;
\&        }
\&
\&        print "$filename: $line_count\en";
\&    }
.Ve
.PP
The difference here is the addition of the temporary variable \f(CW$data\fR.
This is used to store a copy of the compressed data while it is being
uncompressed.
.PP
If you know that \f(CW$compressedLength\fR isn't that big then using temporary
storage won't be a problem. But if \f(CW$compressedLength\fR is very large or
you are writing an application that other people will use, and so have no
idea how big \f(CW$compressedLength\fR will be, it could be an issue.
.PP
Using \f(CW\*(C`InputLength\*(C'\fR avoids the use of temporary storage and means the
application can cope with large compressed data streams.
.PP
One final point \*(-- obviously \f(CW\*(C`InputLength\*(C'\fR can only be used whenever you
know the length of the compressed data beforehand, like here with a zip
file.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
Compress::Zlib, IO::Compress::Gzip, IO::Uncompress::Gunzip, IO::Compress::Deflate, IO::Uncompress::Inflate, IO::Compress::RawDeflate, IO::Uncompress::RawInflate, IO::Compress::Bzip2, IO::Uncompress::Bunzip2, IO::Compress::Lzma, IO::Uncompress::UnLzma, IO::Compress::Xz, IO::Uncompress::UnXz, IO::Compress::Lzop, IO::Uncompress::UnLzop, IO::Compress::Lzf, IO::Uncompress::UnLzf, IO::Uncompress::AnyInflate, IO::Uncompress::AnyUncompress
.PP
IO::Compress::FAQ
.PP
File::GlobMapper, Archive::Zip,
Archive::Tar,
IO::Zlib
.SH "AUTHOR"
.IX Header "AUTHOR"
This module was written by Paul Marquess, \fIpmqs@cpan.org\fR.
.SH "MODIFICATION HISTORY"
.IX Header "MODIFICATION HISTORY"
See the Changes file.
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
Copyright (c) 2005\-2015 Paul Marquess. All rights reserved.
.PP
This program is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.

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