Devil Killer Is Here MiNi Shell
MiNi SheLL

Current Path : /proc/thread-self/root/usr/local/man/man3/
Linux boscustweb5005.eigbox.net 5.4.91 #1 SMP Wed Jan 20 18:10:28 EST 2021 x86_64
Current File : //proc/thread-self/root/usr/local/man/man3/IO::Compress::Zip.3
.\" Automatically generated by Pod::Man v1.37, Pod::Parser v1.32
.\"
.\" Standard preamble:
.\" ========================================================================
.de Sh \" Subsection heading
.br
.if t .Sp
.ne 5
.PP
\fB\\$1\fR
.PP
..
.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.  | will give a
.\" real vertical bar.  \*(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-|\(bv\*(Tr
.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" ''
'br\}
.\"
.\" If the F register is turned on, we'll generate index entries on stderr for
.\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index
.\" entries marked with X<> in POD.  Of course, you'll have to process the
.\" output yourself in some meaningful fashion.
.if \nF \{\
.    de IX
.    tm Index:\\$1\t\\n%\t"\\$2"
..
.    nr % 0
.    rr F
.\}
.\"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.hy 0
.if n .na
.\"
.\" 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 "IO::Compress::Zip 3"
.TH IO::Compress::Zip 3 "2006-11-01" "perl v5.8.8" "User Contributed Perl Documentation"
.SH "NAME"
IO::Compress::Zip \- Write zip files/buffers
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\&    use IO::Compress::Zip qw(zip $ZipError) ;
.Ve
.PP
.Vb 2
\&    my $status = zip $input => $output [,OPTS] 
\&        or die "zip failed: $ZipError\en";
.Ve
.PP
.Vb 2
\&    my $z = new IO::Compress::Zip $output [,OPTS]
\&        or die "zip failed: $ZipError\en";
.Ve
.PP
.Vb 14
\&    $z->print($string);
\&    $z->printf($format, $string);
\&    $z->write($string);
\&    $z->syswrite($string [, $length, $offset]);
\&    $z->flush();
\&    $z->tell();
\&    $z->eof();
\&    $z->seek($position, $whence);
\&    $z->binmode();
\&    $z->fileno();
\&    $z->opened();
\&    $z->autoflush();
\&    $z->input_line_number();
\&    $z->newStream( [OPTS] );
.Ve
.PP
.Vb 1
\&    $z->deflateParams();
.Ve
.PP
.Vb 1
\&    $z->close() ;
.Ve
.PP
.Vb 1
\&    $ZipError ;
.Ve
.PP
.Vb 1
\&    # IO::File mode
.Ve
.PP
.Vb 8
\&    print $z $string;
\&    printf $z $format, $string;
\&    tell $z
\&    eof $z
\&    seek $z, $position, $whence
\&    binmode $z
\&    fileno $z
\&    close $z ;
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This module provides a Perl interface that allows writing zip 
compressed data to files or buffer.
.PP
The primary purpose of this module is to provide streaming write access to
zip files and buffers. It is not a general-purpose file archiver. If that
is what you want, check out \f(CW\*(C`Archive::Zip\*(C'\fR.
.PP
For reading zip files/buffers, see the companion module 
IO::Uncompress::Unzip.
.SH "Functional Interface"
.IX Header "Functional Interface"
A top-level function, \f(CW\*(C`zip\*(C'\fR, is provided to carry out
\&\*(L"one\-shot\*(R" compression between buffers and/or files. For finer
control over the compression process, see the \*(L"\s-1OO\s0 Interface\*(R"
section.
.PP
.Vb 1
\&    use IO::Compress::Zip qw(zip $ZipError) ;
.Ve
.PP
.Vb 2
\&    zip $input => $output [,OPTS] 
\&        or die "zip failed: $ZipError\en";
.Ve
.PP
The functional interface needs Perl5.005 or better.
.ie n .Sh "zip $input\fP => \f(CW$output [, \s-1OPTS\s0]"
.el .Sh "zip \f(CW$input\fP => \f(CW$output\fP [, \s-1OPTS\s0]"
.IX Subsection "zip $input => $output [, OPTS]"
\&\f(CW\*(C`zip\*(C'\fR expects at least two parameters, \f(CW$input\fR and \f(CW$output\fR.
.PP
\fIThe \f(CI$input\fI parameter\fR
.IX Subsection "The $input parameter"
.PP
The parameter, \f(CW$input\fR, is used to define the source of
the uncompressed data. 
.PP
It can take one of the following forms:
.IP "A filename" 5
.IX Item "A filename"
If the \f(CW$input\fR parameter is a simple scalar, it is assumed to be a
filename. This file will be opened for reading and the input data
will be read from it.
.IP "A filehandle" 5
.IX Item "A filehandle"
If the \f(CW$input\fR parameter is a filehandle, the input data will be
read from it.
The string '\-' can be used as an alias for standard input.
.IP "A scalar reference" 5
.IX Item "A scalar reference"
If \f(CW$input\fR is a scalar reference, the input data will be read
from \f(CW$$input\fR.
.IP "An array reference" 5
.IX Item "An array reference"
If \f(CW$input\fR is an array reference, each element in the array must be a
filename.
.Sp
The input data will be read from each file in turn. 
.Sp
The complete array will be walked to ensure that it only
contains valid filenames before any data is compressed.
.IP "An Input FileGlob string" 5
.IX Item "An Input FileGlob string"
If \f(CW$input\fR is a string that is delimited by the characters \*(L"<\*(R" and \*(L">\*(R"
\&\f(CW\*(C`zip\*(C'\fR will assume that it is an \fIinput fileglob string\fR. The
input is the list of files that match the fileglob.
.Sp
If the fileglob does not match any files ...
.Sp
See File::GlobMapper for more details.
.PP
If the \f(CW$input\fR parameter is any other type, \f(CW\*(C`undef\*(C'\fR will be returned.
.PP
In addition, if \f(CW$input\fR is a simple filename, the default values for
the \f(CW\*(C`Name\*(C'\fR, \f(CW\*(C`Time\*(C'\fR and \f(CW\*(C`exTime\*(C'\fR options will be sourced from that file.
.PP
If you do not want to use these defaults they can be overridden by
explicitly setting the \f(CW\*(C`Name\*(C'\fR, \f(CW\*(C`Time\*(C'\fR and \f(CW\*(C`exTime\*(C'\fR options or by setting the
\&\f(CW\*(C`Minimal\*(C'\fR parameter.
.PP
\fIThe \f(CI$output\fI parameter\fR
.IX Subsection "The $output parameter"
.PP
The parameter \f(CW$output\fR is used to control the destination of the
compressed data. This parameter can take one of these forms.
.IP "A filename" 5
.IX Item "A filename"
If the \f(CW$output\fR parameter is a simple scalar, it is assumed to be a
filename.  This file will be opened for writing and the compressed
data will be written to it.
.IP "A filehandle" 5
.IX Item "A filehandle"
If the \f(CW$output\fR parameter is a filehandle, the compressed data
will be written to it.
The string '\-' can be used as an alias for standard output.
.IP "A scalar reference" 5
.IX Item "A scalar reference"
If \f(CW$output\fR is a scalar reference, the compressed data will be
stored in \f(CW$$output\fR.
.IP "An Array Reference" 5
.IX Item "An Array Reference"
If \f(CW$output\fR is an array reference, the compressed data will be
pushed onto the array.
.IP "An Output FileGlob" 5
.IX Item "An Output FileGlob"
If \f(CW$output\fR is a string that is delimited by the characters \*(L"<\*(R" and \*(L">\*(R"
\&\f(CW\*(C`zip\*(C'\fR will assume that it is an \fIoutput fileglob string\fR. The
output is the list of files that match the fileglob.
.Sp
When \f(CW$output\fR is an fileglob string, \f(CW$input\fR must also be a fileglob
string. Anything else is an error.
.PP
If the \f(CW$output\fR parameter is any other type, \f(CW\*(C`undef\*(C'\fR will be returned.
.Sh "Notes"
.IX Subsection "Notes"
When \f(CW$input\fR maps to multiple files/buffers and \f(CW$output\fR is a single
file/buffer the input files/buffers will each be stored
in \f(CW$output\fR as a distinct entry.
.Sh "Optional Parameters"
.IX Subsection "Optional Parameters"
Unless specified below, the optional parameters for \f(CW\*(C`zip\*(C'\fR,
\&\f(CW\*(C`OPTS\*(C'\fR, are the same as those used with the \s-1OO\s0 interface defined in the
\&\*(L"Constructor Options\*(R" section below.
.ie n .IP """AutoClose => 0|1""" 5
.el .IP "\f(CWAutoClose => 0|1\fR" 5
.IX Item "AutoClose => 0|1"
This option applies to any input or output data streams to 
\&\f(CW\*(C`zip\*(C'\fR that are filehandles.
.Sp
If \f(CW\*(C`AutoClose\*(C'\fR is specified, and the value is true, it will result in all
input and/or output filehandles being closed once \f(CW\*(C`zip\*(C'\fR has
completed.
.Sp
This parameter defaults to 0.
.ie n .IP """BinModeIn => 0|1""" 5
.el .IP "\f(CWBinModeIn => 0|1\fR" 5
.IX Item "BinModeIn => 0|1"
When reading from a file or filehandle, set \f(CW\*(C`binmode\*(C'\fR before reading.
.Sp
Defaults to 0.
.ie n .IP """Append => 0|1""" 5
.el .IP "\f(CWAppend => 0|1\fR" 5
.IX Item "Append => 0|1"
\&\s-1TODO\s0
.Sh "Examples"
.IX Subsection "Examples"
To read the contents of the file \f(CW\*(C`file1.txt\*(C'\fR and write the compressed
data to the file \f(CW\*(C`file1.txt.zip\*(C'\fR.
.PP
.Vb 3
\&    use strict ;
\&    use warnings ;
\&    use IO::Compress::Zip qw(zip $ZipError) ;
.Ve
.PP
.Vb 3
\&    my $input = "file1.txt";
\&    zip $input => "$input.zip"
\&        or die "zip failed: $ZipError\en";
.Ve
.PP
To read from an existing Perl filehandle, \f(CW$input\fR, and write the
compressed data to a buffer, \f(CW$buffer\fR.
.PP
.Vb 4
\&    use strict ;
\&    use warnings ;
\&    use IO::Compress::Zip qw(zip $ZipError) ;
\&    use IO::File ;
.Ve
.PP
.Vb 5
\&    my $input = new IO::File "<file1.txt"
\&        or die "Cannot open 'file1.txt': $!\en" ;
\&    my $buffer ;
\&    zip $input => \e$buffer 
\&        or die "zip failed: $ZipError\en";
.Ve
.PP
To compress all files in the directory \*(L"/my/home\*(R" that match \*(L"*.txt\*(R"
and store the compressed data in the same directory
.PP
.Vb 3
\&    use strict ;
\&    use warnings ;
\&    use IO::Compress::Zip qw(zip $ZipError) ;
.Ve
.PP
.Vb 2
\&    zip '</my/home/*.txt>' => '<*.zip>'
\&        or die "zip failed: $ZipError\en";
.Ve
.PP
and if you want to compress each file one at a time, this will do the trick
.PP
.Vb 3
\&    use strict ;
\&    use warnings ;
\&    use IO::Compress::Zip qw(zip $ZipError) ;
.Ve
.PP
.Vb 6
\&    for my $input ( glob "/my/home/*.txt" )
\&    {
\&        my $output = "$input.zip" ;
\&        zip $input => $output 
\&            or die "Error compressing '$input': $ZipError\en";
\&    }
.Ve
.SH "OO Interface"
.IX Header "OO Interface"
.Sh "Constructor"
.IX Subsection "Constructor"
The format of the constructor for \f(CW\*(C`IO::Compress::Zip\*(C'\fR is shown below
.PP
.Vb 2
\&    my $z = new IO::Compress::Zip $output [,OPTS]
\&        or die "IO::Compress::Zip failed: $ZipError\en";
.Ve
.PP
It returns an \f(CW\*(C`IO::Compress::Zip\*(C'\fR object on success and undef on failure. 
The variable \f(CW$ZipError\fR will contain an error message on failure.
.PP
If you are running Perl 5.005 or better the object, \f(CW$z\fR, returned from 
IO::Compress::Zip can be used exactly like an IO::File filehandle. 
This means that all normal output file operations can be carried out 
with \f(CW$z\fR. 
For example, to write to a compressed file/buffer you can use either of 
these forms
.PP
.Vb 2
\&    $z->print("hello world\en");
\&    print $z "hello world\en";
.Ve
.PP
The mandatory parameter \f(CW$output\fR is used to control the destination
of the compressed data. This parameter can take one of these forms.
.IP "A filename" 5
.IX Item "A filename"
If the \f(CW$output\fR parameter is a simple scalar, it is assumed to be a
filename. This file will be opened for writing and the compressed data
will be written to it.
.IP "A filehandle" 5
.IX Item "A filehandle"
If the \f(CW$output\fR parameter is a filehandle, the compressed data will be
written to it.
The string '\-' can be used as an alias for standard output.
.IP "A scalar reference" 5
.IX Item "A scalar reference"
If \f(CW$output\fR is a scalar reference, the compressed data will be stored
in \f(CW$$output\fR.
.PP
If the \f(CW$output\fR parameter is any other type, \f(CW\*(C`IO::Compress::Zip\*(C'\fR::new will
return undef.
.Sh "Constructor Options"
.IX Subsection "Constructor Options"
\&\f(CW\*(C`OPTS\*(C'\fR is any combination of the following options:
.ie n .IP """AutoClose => 0|1""" 5
.el .IP "\f(CWAutoClose => 0|1\fR" 5
.IX Item "AutoClose => 0|1"
This option is only valid when the \f(CW$output\fR parameter is a filehandle. If
specified, and the value is true, it will result in the \f(CW$output\fR being
closed once either the \f(CW\*(C`close\*(C'\fR method is called or the \f(CW\*(C`IO::Compress::Zip\*(C'\fR
object is destroyed.
.Sp
This parameter defaults to 0.
.ie n .IP """Append => 0|1""" 5
.el .IP "\f(CWAppend => 0|1\fR" 5
.IX Item "Append => 0|1"
Opens \f(CW$output\fR in append mode. 
.Sp
The behaviour of this option is dependent on the type of \f(CW$output\fR.
.RS 5
.IP "* A Buffer" 5
.IX Item "A Buffer"
If \f(CW$output\fR is a buffer and \f(CW\*(C`Append\*(C'\fR is enabled, all compressed data
will be append to the end if \f(CW$output\fR. Otherwise \f(CW$output\fR will be
cleared before any data is written to it.
.IP "* A Filename" 5
.IX Item "A Filename"
If \f(CW$output\fR is a filename and \f(CW\*(C`Append\*(C'\fR is enabled, the file will be
opened in append mode. Otherwise the contents of the file, if any, will be
truncated before any compressed data is written to it.
.IP "* A Filehandle" 5
.IX Item "A Filehandle"
If \f(CW$output\fR is a filehandle, the file pointer will be positioned to the
end of the file via a call to \f(CW\*(C`seek\*(C'\fR before any compressed data is written
to it.  Otherwise the file pointer will not be moved.
.RE
.RS 5
.Sp
This parameter defaults to 0.
.RE
.ie n .IP """Name => $string""" 5
.el .IP "\f(CWName => $string\fR" 5
.IX Item "Name => $string"
Stores the contents of \f(CW$string\fR in the zip filename header field. If
\&\f(CW\*(C`Name\*(C'\fR is not specified, no zip filename field will be created.
.ie n .IP """Time => $number""" 5
.el .IP "\f(CWTime => $number\fR" 5
.IX Item "Time => $number"
Sets the last modified time field in the zip header to \f(CW$number\fR.
.Sp
This field defaults to the time the \f(CW\*(C`IO::Compress::Zip\*(C'\fR object was created
if this option is not specified.
.ie n .IP """exTime => [$atime, $mtime, $ctime]""" 5
.el .IP "\f(CWexTime => [$atime, $mtime, $ctime]\fR" 5
.IX Item "exTime => [$atime, $mtime, $ctime]"
This option expects an array reference with exactly three elements:
\&\f(CW$atime\fR, \f(CW\*(C`mtime\*(C'\fR and \f(CW$ctime\fR. These correspond to the last access
time, last modification time and creation time respectively.
.Sp
It uses these values to set the extended timestamp field in the local zip
header to the three values, \f(CW$atime\fR, \f(CW$mtime\fR, \f(CW$ctime\fR and sets the extended
timestamp field in the central zip header to \f(CW$mtime\fR.
.Sp
If the \f(CW\*(C`Minimal\*(C'\fR option is set to true, this option will be ignored.
.Sp
By default no extended time field is created.
.ie n .IP """Comment => $comment""" 5
.el .IP "\f(CWComment => $comment\fR" 5
.IX Item "Comment => $comment"
Stores the contents of \f(CW$comment\fR in the Central File Header of
the zip file.
.Sp
By default, no comment field is written to the zip file.
.ie n .IP """ZipComment => $comment""" 5
.el .IP "\f(CWZipComment => $comment\fR" 5
.IX Item "ZipComment => $comment"
Stores the contents of \f(CW$comment\fR in the End of Central Directory record
of the zip file.
.Sp
By default, no comment field is written to the zip file.
.ie n .IP """Method => $method""" 5
.el .IP "\f(CWMethod => $method\fR" 5
.IX Item "Method => $method"
Controls which compression method is used. At present three compression
methods are supported, namely Store (no compression at all), Deflate and
Bzip2.
.Sp
The symbols, \s-1ZIP_CM_STORE\s0, \s-1ZIP_CM_DEFLATE\s0 and \s-1ZIP_CM_BZIP2\s0 are used to
select the compression method.
.Sp
These constants are not imported by \f(CW\*(C`IO::Compress::Zip\*(C'\fR by default.
.Sp
.Vb 3
\&    use IO::Compress::Zip qw(:zip_method);
\&    use IO::Compress::Zip qw(:constants);
\&    use IO::Compress::Zip qw(:all);
.Ve
.Sp
Note that to create Bzip2 content, the module \f(CW\*(C`IO::Compress::Bzip2\*(C'\fR must
be installed. A fatal error will be thrown if you attempt to create Bzip2
content when \f(CW\*(C`IO::Compress::Bzip2\*(C'\fR is not available.
.Sp
The default method is \s-1ZIP_CM_DEFLATE\s0.
.ie n .IP """Stream => 0|1""" 5
.el .IP "\f(CWStream => 0|1\fR" 5
.IX Item "Stream => 0|1"
This option controls whether the zip file/buffer output is created in
streaming mode.
.Sp
Note that when outputting to a file with streaming mode disabled (\f(CW\*(C`Stream\*(C'\fR
is 0), the output file must be seekable.
.Sp
The default is 1.
.ie n .IP """TextFlag => 0|1""" 5
.el .IP "\f(CWTextFlag => 0|1\fR" 5
.IX Item "TextFlag => 0|1"
This parameter controls the setting of a bit in the zip central header. It
is used to signal that the data stored in the zip file/buffer is probably
text.
.Sp
The default is 0. 
.ie n .IP """ExtraFieldLocal => $data""\fR =item \f(CW""ExtraFieldCentral => $data""" 5
.el .IP "\f(CWExtraFieldLocal => $data\fR =item \f(CWExtraFieldCentral => $data\fR" 5
.IX Item "ExtraFieldLocal => $data =item ExtraFieldCentral => $data"
These options allows additional metadata to be stored in the local and
central headers in the zip file/buffer.
.Sp
An extra field consists of zero or more subfields. Each subfield consists
of a two byte header followed by the subfield data.
.Sp
The list of subfields can be supplied in any of the following formats
.Sp
.Vb 4
\&    ExtraFieldLocal => [$id1, $data1,
\&                        $id2, $data2,
\&                         ...
\&                       ]
.Ve
.Sp
.Vb 4
\&    ExtraFieldLocal => [ [$id1 => $data1],
\&                         [$id2 => $data2],
\&                         ...
\&                       ]
.Ve
.Sp
.Vb 4
\&    ExtraFieldLocal => { $id1 => $data1,
\&                         $id2 => $data2,
\&                         ...
\&                       }
.Ve
.Sp
Where \f(CW$id1\fR, \f(CW$id2\fR are two byte subfield \s-1ID\s0's. 
.Sp
If you use the hash syntax, you have no control over the order in which
the ExtraSubFields are stored, plus you cannot have SubFields with
duplicate \s-1ID\s0.
.Sp
Alternatively the list of subfields can by supplied as a scalar, thus
.Sp
.Vb 1
\&    ExtraField => $rawdata
.Ve
.Sp
If the \f(CW\*(C`Minimal\*(C'\fR option is set to true, this option will be ignored.
.Sp
The maximum size of an extra field 65535 bytes.
.ie n .IP """Minimal => 1|0""" 5
.el .IP "\f(CWMinimal => 1|0\fR" 5
.IX Item "Minimal => 1|0"
If specified, this option will disable the creation of all extended fields
in the zip local and central headers.
.Sp
This parameter defaults to 0.
.ie n .IP """BlockSize100K => number""" 5
.el .IP "\f(CWBlockSize100K => number\fR" 5
.IX Item "BlockSize100K => number"
Specify the number of 100K blocks bzip2 uses during compression. 
.Sp
Valid values are from 1 to 9, where 9 is best compression.
.Sp
This option is only valid if the \f(CW\*(C`Method\*(C'\fR is \s-1ZIP_CM_BZIP2\s0. It is ignored
otherwise.
.Sp
The default is 1.
.ie n .IP """WorkFactor => number""" 5
.el .IP "\f(CWWorkFactor => number\fR" 5
.IX Item "WorkFactor => number"
Specifies how much effort bzip2 should take before resorting to a slower
fallback compression algorithm.
.Sp
Valid values range from 0 to 250, where 0 means use the default value 30.
.Sp
This option is only valid if the \f(CW\*(C`Method\*(C'\fR is \s-1ZIP_CM_BZIP2\s0. It is ignored
otherwise.
.Sp
The default is 0.
.IP "\-Level" 5
.IX Item "-Level"
Defines the compression level used by zlib. The value should either be
a number between 0 and 9 (0 means no compression and 9 is maximum
compression), or one of the symbolic constants defined below.
.Sp
.Vb 4
\&   Z_NO_COMPRESSION
\&   Z_BEST_SPEED
\&   Z_BEST_COMPRESSION
\&   Z_DEFAULT_COMPRESSION
.Ve
.Sp
The default is Z_DEFAULT_COMPRESSION.
.Sp
Note, these constants are not imported by \f(CW\*(C`IO::Compress::Zip\*(C'\fR by default.
.Sp
.Vb 3
\&    use IO::Compress::Zip qw(:strategy);
\&    use IO::Compress::Zip qw(:constants);
\&    use IO::Compress::Zip qw(:all);
.Ve
.IP "\-Strategy" 5
.IX Item "-Strategy"
Defines the strategy used to tune the compression. Use one of the symbolic
constants defined below.
.Sp
.Vb 5
\&   Z_FILTERED
\&   Z_HUFFMAN_ONLY
\&   Z_RLE
\&   Z_FIXED
\&   Z_DEFAULT_STRATEGY
.Ve
.Sp
The default is Z_DEFAULT_STRATEGY.
.ie n .IP """Strict => 0|1""" 5
.el .IP "\f(CWStrict => 0|1\fR" 5
.IX Item "Strict => 0|1"
This is a placeholder option.
.Sh "Examples"
.IX Subsection "Examples"
\&\s-1TODO\s0
.SH "Methods"
.IX Header "Methods"
.Sh "print"
.IX Subsection "print"
Usage is
.PP
.Vb 2
\&    $z->print($data)
\&    print $z $data
.Ve
.PP
Compresses and outputs the contents of the \f(CW$data\fR parameter. This
has the same behaviour as the \f(CW\*(C`print\*(C'\fR built\-in.
.PP
Returns true if successful.
.Sh "printf"
.IX Subsection "printf"
Usage is
.PP
.Vb 2
\&    $z->printf($format, $data)
\&    printf $z $format, $data
.Ve
.PP
Compresses and outputs the contents of the \f(CW$data\fR parameter.
.PP
Returns true if successful.
.Sh "syswrite"
.IX Subsection "syswrite"
Usage is
.PP
.Vb 3
\&    $z->syswrite $data
\&    $z->syswrite $data, $length
\&    $z->syswrite $data, $length, $offset
.Ve
.PP
Compresses and outputs the contents of the \f(CW$data\fR parameter.
.PP
Returns the number of uncompressed bytes written, or \f(CW\*(C`undef\*(C'\fR if
unsuccessful.
.Sh "write"
.IX Subsection "write"
Usage is
.PP
.Vb 3
\&    $z->write $data
\&    $z->write $data, $length
\&    $z->write $data, $length, $offset
.Ve
.PP
Compresses and outputs the contents of the \f(CW$data\fR parameter.
.PP
Returns the number of uncompressed bytes written, or \f(CW\*(C`undef\*(C'\fR if
unsuccessful.
.Sh "flush"
.IX Subsection "flush"
Usage is
.PP
.Vb 2
\&    $z->flush;
\&    $z->flush($flush_type);
.Ve
.PP
Flushes any pending compressed data to the output file/buffer.
.PP
This method takes an optional parameter, \f(CW$flush_type\fR, that controls
how the flushing will be carried out. By default the \f(CW$flush_type\fR
used is \f(CW\*(C`Z_FINISH\*(C'\fR. Other valid values for \f(CW$flush_type\fR are
\&\f(CW\*(C`Z_NO_FLUSH\*(C'\fR, \f(CW\*(C`Z_SYNC_FLUSH\*(C'\fR, \f(CW\*(C`Z_FULL_FLUSH\*(C'\fR and \f(CW\*(C`Z_BLOCK\*(C'\fR. It is
strongly recommended that you only set the \f(CW\*(C`flush_type\*(C'\fR parameter if
you fully understand the implications of what it does \- overuse of \f(CW\*(C`flush\*(C'\fR
can seriously degrade the level of compression achieved. See the \f(CW\*(C`zlib\*(C'\fR
documentation for details.
.PP
Returns true on success.
.Sh "tell"
.IX Subsection "tell"
Usage is
.PP
.Vb 2
\&    $z->tell()
\&    tell $z
.Ve
.PP
Returns the uncompressed file offset.
.Sh "eof"
.IX Subsection "eof"
Usage is
.PP
.Vb 2
\&    $z->eof();
\&    eof($z);
.Ve
.PP
Returns true if the \f(CW\*(C`close\*(C'\fR method has been called.
.Sh "seek"
.IX Subsection "seek"
.Vb 2
\&    $z->seek($position, $whence);
\&    seek($z, $position, $whence);
.Ve
.PP
Provides a sub-set of the \f(CW\*(C`seek\*(C'\fR functionality, with the restriction
that it is only legal to seek forward in the output file/buffer.
It is a fatal error to attempt to seek backward.
.PP
Empty parts of the file/buffer will have \s-1NULL\s0 (0x00) bytes written to them.
.PP
The \f(CW$whence\fR parameter takes one the usual values, namely \s-1SEEK_SET\s0,
\&\s-1SEEK_CUR\s0 or \s-1SEEK_END\s0.
.PP
Returns 1 on success, 0 on failure.
.Sh "binmode"
.IX Subsection "binmode"
Usage is
.PP
.Vb 2
\&    $z->binmode
\&    binmode $z ;
.Ve
.PP
This is a noop provided for completeness.
.Sh "opened"
.IX Subsection "opened"
.Vb 1
\&    $z->opened()
.Ve
.PP
Returns true if the object currently refers to a opened file/buffer. 
.Sh "autoflush"
.IX Subsection "autoflush"
.Vb 2
\&    my $prev = $z->autoflush()
\&    my $prev = $z->autoflush(EXPR)
.Ve
.PP
If the \f(CW$z\fR object is associated with a file or a filehandle, this method
returns the current autoflush setting for the underlying filehandle. If
\&\f(CW\*(C`EXPR\*(C'\fR is present, and is non\-zero, it will enable flushing after every
write/print operation.
.PP
If \f(CW$z\fR is associated with a buffer, this method has no effect and always
returns \f(CW\*(C`undef\*(C'\fR.
.PP
\&\fBNote\fR that the special variable \f(CW$|\fR \fBcannot\fR be used to set or
retrieve the autoflush setting.
.Sh "input_line_number"
.IX Subsection "input_line_number"
.Vb 2
\&    $z->input_line_number()
\&    $z->input_line_number(EXPR)
.Ve
.PP
This method always returns \f(CW\*(C`undef\*(C'\fR when compressing. 
.Sh "fileno"
.IX Subsection "fileno"
.Vb 2
\&    $z->fileno()
\&    fileno($z)
.Ve
.PP
If the \f(CW$z\fR object is associated with a file or a filehandle, this method
will return the underlying file descriptor.
.PP
If the \f(CW$z\fR object is is associated with a buffer, this method will
return undef.
.Sh "close"
.IX Subsection "close"
.Vb 2
\&    $z->close() ;
\&    close $z ;
.Ve
.PP
Flushes any pending compressed data and then closes the output file/buffer. 
.PP
For most versions of Perl this method will be automatically invoked if
the IO::Compress::Zip object is destroyed (either explicitly or by the
variable with the reference to the object going out of scope). The
exceptions are Perl versions 5.005 through 5.00504 and 5.8.0. In
these cases, the \f(CW\*(C`close\*(C'\fR method will be called automatically, but
not until global destruction of all live objects when the program is
terminating.
.PP
Therefore, if you want your scripts to be able to run on all versions
of Perl, you should call \f(CW\*(C`close\*(C'\fR explicitly and not rely on automatic
closing.
.PP
Returns true on success, otherwise 0.
.PP
If the \f(CW\*(C`AutoClose\*(C'\fR option has been enabled when the IO::Compress::Zip
object was created, and the object is associated with a file, the
underlying file will also be closed.
.Sh "newStream([\s-1OPTS\s0])"
.IX Subsection "newStream([OPTS])"
Usage is
.PP
.Vb 1
\&    $z->newStream( [OPTS] )
.Ve
.PP
Closes the current compressed data stream and starts a new one.
.PP
\&\s-1OPTS\s0 consists of any of the the options that are available when creating
the \f(CW$z\fR object.
.PP
See the \*(L"Constructor Options\*(R" section for more details.
.Sh "deflateParams"
.IX Subsection "deflateParams"
Usage is
.PP
.Vb 1
\&    $z->deflateParams
.Ve
.PP
\&\s-1TODO\s0
.SH "Importing"
.IX Header "Importing"
A number of symbolic constants are required by some methods in 
\&\f(CW\*(C`IO::Compress::Zip\*(C'\fR. None are imported by default.
.IP ":all" 5
.IX Item ":all"
Imports \f(CW\*(C`zip\*(C'\fR, \f(CW$ZipError\fR and all symbolic
constants that can be used by \f(CW\*(C`IO::Compress::Zip\*(C'\fR. Same as doing this
.Sp
.Vb 1
\&    use IO::Compress::Zip qw(zip $ZipError :constants) ;
.Ve
.IP ":constants" 5
.IX Item ":constants"
Import all symbolic constants. Same as doing this
.Sp
.Vb 1
\&    use IO::Compress::Zip qw(:flush :level :strategy :zip_method) ;
.Ve
.IP ":flush" 5
.IX Item ":flush"
These symbolic constants are used by the \f(CW\*(C`flush\*(C'\fR method.
.Sp
.Vb 6
\&    Z_NO_FLUSH
\&    Z_PARTIAL_FLUSH
\&    Z_SYNC_FLUSH
\&    Z_FULL_FLUSH
\&    Z_FINISH
\&    Z_BLOCK
.Ve
.IP ":level" 5
.IX Item ":level"
These symbolic constants are used by the \f(CW\*(C`Level\*(C'\fR option in the constructor.
.Sp
.Vb 4
\&    Z_NO_COMPRESSION
\&    Z_BEST_SPEED
\&    Z_BEST_COMPRESSION
\&    Z_DEFAULT_COMPRESSION
.Ve
.IP ":strategy" 5
.IX Item ":strategy"
These symbolic constants are used by the \f(CW\*(C`Strategy\*(C'\fR option in the constructor.
.Sp
.Vb 5
\&    Z_FILTERED
\&    Z_HUFFMAN_ONLY
\&    Z_RLE
\&    Z_FIXED
\&    Z_DEFAULT_STRATEGY
.Ve
.IP ":zip_method" 5
.IX Item ":zip_method"
These symbolic constants are used by the \f(CW\*(C`Method\*(C'\fR option in the
constructor.
.Sp
.Vb 3
\&    ZIP_CM_STORE
\&    ZIP_CM_DEFLATE
\&    ZIP_CM_BZIP2
.Ve
.PP
For 
.SH "EXAMPLES"
.IX Header "EXAMPLES"
\&\s-1TODO\s0
.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::Lzop, IO::Uncompress::UnLzop, IO::Compress::Lzf, IO::Uncompress::UnLzf, IO::Uncompress::AnyInflate, IO::Uncompress::AnyUncompress
.PP
Compress::Zlib::FAQ
.PP
File::GlobMapper, Archive::Zip,
Archive::Tar,
IO::Zlib
.PP
For \s-1RFC\s0 1950, 1951 and 1952 see 
\&\fIhttp://www.faqs.org/rfcs/rfc1950.html\fR,
\&\fIhttp://www.faqs.org/rfcs/rfc1951.html\fR and
\&\fIhttp://www.faqs.org/rfcs/rfc1952.html\fR
.PP
The \fIzlib\fR compression library was written by Jean-loup Gailly
\&\fIgzip@prep.ai.mit.edu\fR and Mark Adler \fImadler@alumni.caltech.edu\fR.
.PP
The primary site for the \fIzlib\fR compression library is
\&\fIhttp://www.zlib.org\fR.
.PP
The primary site for gzip is \fIhttp://www.gzip.org\fR.
.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\-2006 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.
Creat By MiNi SheLL
Email: devilkiller@gmail.com