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<span class="siteTitle">NYTProf Performance Profile</span>
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<span class="siteSubtitle">Run on Tue May 4 15:25:55 2010<br />Reported on Tue May 4 15:26:07 2010</span>
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<table>
<tr>
<td class="h" align="right">File</td>
<td align="left">/usr/local/lib/perl5/5.10.1/darwin-2level/IO/Uncompress/Gunzip.pm</td>
</tr>
<tr>
<td class="h" align="right">Statements Executed</td>
<td align="left">38</td>
</tr>
<tr>
<td class="h" align="right">Statement Execution Time</td>
<td align="left">1.49ms</td>
</tr>
</table>
<table id="subs_table" border="1" cellpadding="0" class="tablesorter">
<caption>Subroutines — ordered by exclusive time</caption>
<thead>
<tr>
<th>Calls</th>
<th><span title="Number of Places sub is called from">P</span></th>
<th><span title="Number of Files sub is called from">F</span></th>
<th>Exclusive<br />Time</th>
<th>Inclusive<br />Time</th>
<th>Subroutine</th>
</tr>
</thead>
<tbody>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c0"><span title="0.1%">1.19ms</span></td><td class="c0"><span title="3.0%">32.7ms</span></td><td class="sub_name"><span style="display: none;">IO::Uncompress::Gunzip::::BEGIN@12</span>IO::Uncompress::Gunzip::<a href="IO-Uncompress-Gunzip-pm-block.html#12">BEGIN@12</a></span></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c0"><span title="0.1%">1.02ms</span></td><td class="c0"><span title="0.2%">2.33ms</span></td><td class="sub_name"><span style="display: none;">IO::Uncompress::Gunzip::::BEGIN@16</span>IO::Uncompress::Gunzip::<a href="IO-Uncompress-Gunzip-pm-block.html#16">BEGIN@16</a></span></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c0"><span title="0.1%">674µs</span></td><td class="c0"><span title="0.1%">974µs</span></td><td class="sub_name"><span style="display: none;">IO::Uncompress::Gunzip::::BEGIN@17</span>IO::Uncompress::Gunzip::<a href="IO-Uncompress-Gunzip-pm-block.html#17">BEGIN@17</a></span></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">18µs</span></td><td class="c3"><span title="0.0%">22µs</span></td><td class="sub_name"><span style="display: none;">IO::Uncompress::Gunzip::::BEGIN@10</span>IO::Uncompress::Gunzip::<a href="IO-Uncompress-Gunzip-pm-block.html#10">BEGIN@10</a></span></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">17µs</span></td><td class="c3"><span title="0.0%">20µs</span></td><td class="sub_name"><span style="display: none;">IO::Uncompress::Gunzip::::BEGIN@8</span>IO::Uncompress::Gunzip::<a href="IO-Uncompress-Gunzip-pm-block.html#8">BEGIN@8</a></span></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">13µs</span></td><td class="c3"><span title="0.0%">148µs</span></td><td class="sub_name"><span style="display: none;">IO::Uncompress::Gunzip::::BEGIN@50</span>IO::Uncompress::Gunzip::<a href="IO-Uncompress-Gunzip-pm-block.html#50">BEGIN@50</a></span></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">13µs</span></td><td class="c3"><span title="0.0%">52µs</span></td><td class="sub_name"><span style="display: none;">IO::Uncompress::Gunzip::::BEGIN@14</span>IO::Uncompress::Gunzip::<a href="IO-Uncompress-Gunzip-pm-block.html#14">BEGIN@14</a></span></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">12µs</span></td><td class="c3"><span title="0.0%">139µs</span></td><td class="sub_name"><span style="display: none;">IO::Uncompress::Gunzip::::BEGIN@15</span>IO::Uncompress::Gunzip::<a href="IO-Uncompress-Gunzip-pm-block.html#15">BEGIN@15</a></span></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">10µs</span></td><td class="c3"><span title="0.0%">26µs</span></td><td class="sub_name"><span style="display: none;">IO::Uncompress::Gunzip::::BEGIN@9</span>IO::Uncompress::Gunzip::<a href="IO-Uncompress-Gunzip-pm-block.html#9">BEGIN@9</a></span></td></tr>
<tr><td class="c3">0</td><td class="c3">0</td><td class="c3">0</td><td class="c3"><span title="0.0%">0s</span></td><td class="c3"><span title="0.0%">0s</span></td><td class="sub_name"><span style="display: none;">IO::Uncompress::Gunzip::::_readFullGzipHeader</span>IO::Uncompress::Gunzip::<a href="IO-Uncompress-Gunzip-pm-block.html#126">_readFullGzipHeader</a></span></td></tr>
<tr><td class="c3">0</td><td class="c3">0</td><td class="c3">0</td><td class="c3"><span title="0.0%">0s</span></td><td class="c3"><span title="0.0%">0s</span></td><td class="sub_name"><span style="display: none;">IO::Uncompress::Gunzip::::_readGzipHeader</span>IO::Uncompress::Gunzip::<a href="IO-Uncompress-Gunzip-pm-block.html#148">_readGzipHeader</a></span></td></tr>
<tr><td class="c3">0</td><td class="c3">0</td><td class="c3">0</td><td class="c3"><span title="0.0%">0s</span></td><td class="c3"><span title="0.0%">0s</span></td><td class="sub_name"><span style="display: none;">IO::Uncompress::Gunzip::::chkTrailer</span>IO::Uncompress::Gunzip::<a href="IO-Uncompress-Gunzip-pm-block.html#95">chkTrailer</a></span></td></tr>
<tr><td class="c3">0</td><td class="c3">0</td><td class="c3">0</td><td class="c3"><span title="0.0%">0s</span></td><td class="c3"><span title="0.0%">0s</span></td><td class="sub_name"><span style="display: none;">IO::Uncompress::Gunzip::::ckMagic</span>IO::Uncompress::Gunzip::<a href="IO-Uncompress-Gunzip-pm-block.html#66">ckMagic</a></span></td></tr>
<tr><td class="c3">0</td><td class="c3">0</td><td class="c3">0</td><td class="c3"><span title="0.0%">0s</span></td><td class="c3"><span title="0.0%">0s</span></td><td class="sub_name"><span style="display: none;">IO::Uncompress::Gunzip::::ckParams</span>IO::Uncompress::Gunzip::<a href="IO-Uncompress-Gunzip-pm-block.html#55">ckParams</a></span></td></tr>
<tr><td class="c3">0</td><td class="c3">0</td><td class="c3">0</td><td class="c3"><span title="0.0%">0s</span></td><td class="c3"><span title="0.0%">0s</span></td><td class="sub_name"><span style="display: none;">IO::Uncompress::Gunzip::::getExtraParams</span>IO::Uncompress::Gunzip::<a href="IO-Uncompress-Gunzip-pm-block.html#49">getExtraParams</a></span></td></tr>
<tr><td class="c3">0</td><td class="c3">0</td><td class="c3">0</td><td class="c3"><span title="0.0%">0s</span></td><td class="c3"><span title="0.0%">0s</span></td><td class="sub_name"><span style="display: none;">IO::Uncompress::Gunzip::::gunzip</span>IO::Uncompress::Gunzip::<a href="IO-Uncompress-Gunzip-pm-block.html#43">gunzip</a></span></td></tr>
<tr><td class="c3">0</td><td class="c3">0</td><td class="c3">0</td><td class="c3"><span title="0.0%">0s</span></td><td class="c3"><span title="0.0%">0s</span></td><td class="sub_name"><span style="display: none;">IO::Uncompress::Gunzip::::isGzipMagic</span>IO::Uncompress::Gunzip::<a href="IO-Uncompress-Gunzip-pm-block.html#118">isGzipMagic</a></span></td></tr>
<tr><td class="c3">0</td><td class="c3">0</td><td class="c3">0</td><td class="c3"><span title="0.0%">0s</span></td><td class="c3"><span title="0.0%">0s</span></td><td class="sub_name"><span style="display: none;">IO::Uncompress::Gunzip::::new</span>IO::Uncompress::Gunzip::<a href="IO-Uncompress-Gunzip-pm-block.html#34">new</a></span></td></tr>
<tr><td class="c3">0</td><td class="c3">0</td><td class="c3">0</td><td class="c3"><span title="0.0%">0s</span></td><td class="c3"><span title="0.0%">0s</span></td><td class="sub_name"><span style="display: none;">IO::Uncompress::Gunzip::::readHeader</span>IO::Uncompress::Gunzip::<a href="IO-Uncompress-Gunzip-pm-block.html#87">readHeader</a></span></td></tr>
</tbody>
</table>
Call graph for these subroutines as a <a href="http://en.wikipedia.org/wiki/Graphviz">Graphviz</a> <a href="usr-local-lib-perl5-5-10-1-darwin-2level-IO-Uncompress-Gunzip-pm.dot">dot language file</a>.
<table border="1" cellpadding="0">
<thead>
<tr><th>Line</th>
<th><span title="Number of statements executed">State<br />ments</span></th>
<th><span title="Time spend executing statements on the line,
excluding time spent executing statements in any called subroutines">Time<br />on line</span></th>
<th><span title="Number of subroutines calls">Calls</span></th>
<th><span title="Time spent in subroutines called">Time<br />in subs</span></th>
<th class="left_indent_header">Code</th>
</tr>
</thead>
<tbody>
<tr><td class="h"><a name="1"></a>1</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="2"></a>2</td><td></td><td></td><td></td><td></td><td class="s">package IO::Uncompress::Gunzip ;</td></tr>
<tr><td class="h"><a name="3"></a>3</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="4"></a>4</td><td class="c3">1</td><td class="c3"><span title="Avg 14µs">14µs</span></td><td></td><td></td><td class="s">require 5.004 ;</td></tr>
<tr><td class="h"><a name="5"></a>5</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="6"></a>6</td><td></td><td></td><td></td><td></td><td class="s"># for RFC1952</td></tr>
<tr><td class="h"><a name="7"></a>7</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="8"></a>8</td><td class="c0">3</td><td class="c2"><span title="Avg 8µs">24µs</span></td><td class="c3">2</td><td class="c3">24µs</td><td class="s"><div class="calls"><div class="calls_in"># spent 20µs (17+3) within IO::Uncompress::Gunzip::BEGIN@8 which was called
# once (17µs+3µs) by Net::HTTP::Methods::gunzip_ok at <a href="IO-Uncompress-Gunzip-pm-block.html#8">line 8</a></div></div>use strict ;<div class="calls"><div class="calls_out"># spent 20µs making 1 call to <a href="IO-Uncompress-Gunzip-pm-block.html#8">IO::Uncompress::Gunzip::BEGIN@8</a>
# spent 3µs making 1 call to <a href="strict-pm-block.html#34">strict::import</a></div></div></td></tr>
<tr><td class="h"><a name="9"></a>9</td><td class="c0">3</td><td class="c2"><span title="Avg 9µs">27µs</span></td><td class="c3">2</td><td class="c3">42µs</td><td class="s"><div class="calls"><div class="calls_in"># spent 26µs (10+16) within IO::Uncompress::Gunzip::BEGIN@9 which was called
# once (10µs+16µs) by Net::HTTP::Methods::gunzip_ok at <a href="IO-Uncompress-Gunzip-pm-block.html#9">line 9</a></div></div>use warnings;<div class="calls"><div class="calls_out"># spent 26µs making 1 call to <a href="IO-Uncompress-Gunzip-pm-block.html#9">IO::Uncompress::Gunzip::BEGIN@9</a>
# spent 16µs making 1 call to <a href="warnings-pm-block.html#338">warnings::import</a></div></div></td></tr>
<tr><td class="h"><a name="10"></a>10</td><td class="c0">3</td><td class="c1"><span title="Avg 12µs">35µs</span></td><td class="c3">2</td><td class="c3">25µs</td><td class="s"><div class="calls"><div class="calls_in"># spent 22µs (18+3) within IO::Uncompress::Gunzip::BEGIN@10 which was called
# once (18µs+3µs) by Net::HTTP::Methods::gunzip_ok at <a href="IO-Uncompress-Gunzip-pm-block.html#10">line 10</a></div></div>use bytes;<div class="calls"><div class="calls_out"># spent 22µs making 1 call to <a href="IO-Uncompress-Gunzip-pm-block.html#10">IO::Uncompress::Gunzip::BEGIN@10</a>
# spent 3µs making 1 call to <a href="bytes-pm-block.html#7">bytes::import</a></div></div></td></tr>
<tr><td class="h"><a name="11"></a>11</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="12"></a>12</td><td class="c0">3</td><td class="c0"><span title="Avg 44µs">131µs</span></td><td class="c3">3</td><td class="c0">32.7ms</td><td class="s"><div class="calls"><div class="calls_in"># spent 32.7ms (1.19+31.5) within IO::Uncompress::Gunzip::BEGIN@12 which was called
# once (1.19ms+31.5ms) by Net::HTTP::Methods::gunzip_ok at <a href="IO-Uncompress-Gunzip-pm-block.html#12">line 12</a></div></div>use IO::Uncompress::RawInflate 2.020 ;<div class="calls"><div class="calls_out"># spent 32.7ms making 1 call to <a href="IO-Uncompress-Gunzip-pm-block.html#12">IO::Uncompress::Gunzip::BEGIN@12</a>
# spent 22µs making 1 call to <a href="Exporter-pm-block.html#31">Exporter::import</a>
# spent 12µs making 1 call to <a >UNIVERSAL::VERSION</a></div></div></td></tr>
<tr><td class="h"><a name="13"></a>13</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="14"></a>14</td><td class="c0">3</td><td class="c0"><span title="Avg 15µs">46µs</span></td><td class="c3">3</td><td class="c3">91µs</td><td class="s"><div class="calls"><div class="calls_in"># spent 52µs (13+39) within IO::Uncompress::Gunzip::BEGIN@14 which was called
# once (13µs+39µs) by Net::HTTP::Methods::gunzip_ok at <a href="IO-Uncompress-Gunzip-pm-block.html#14">line 14</a></div></div>use Compress::Raw::Zlib 2.020 qw( crc32 ) ;<div class="calls"><div class="calls_out"># spent 52µs making 1 call to <a href="IO-Uncompress-Gunzip-pm-block.html#14">IO::Uncompress::Gunzip::BEGIN@14</a>
# spent 26µs making 1 call to <a href="Exporter-pm-block.html#31">Exporter::import</a>
# spent 13µs making 1 call to <a >UNIVERSAL::VERSION</a></div></div></td></tr>
<tr><td class="h"><a name="15"></a>15</td><td class="c0">3</td><td class="c1"><span title="Avg 15µs">44µs</span></td><td class="c3">3</td><td class="c3">265µs</td><td class="s"><div class="calls"><div class="calls_in"># spent 139µs (12+126) within IO::Uncompress::Gunzip::BEGIN@15 which was called
# once (12µs+126µs) by Net::HTTP::Methods::gunzip_ok at <a href="IO-Uncompress-Gunzip-pm-block.html#15">line 15</a></div></div>use IO::Compress::Base::Common 2.020 qw(:Status createSelfTiedObject);<div class="calls"><div class="calls_out"># spent 139µs making 1 call to <a href="IO-Uncompress-Gunzip-pm-block.html#15">IO::Uncompress::Gunzip::BEGIN@15</a>
# spent 115µs making 1 call to <a href="Exporter-pm-block.html#31">Exporter::import</a>
# spent 11µs making 1 call to <a >UNIVERSAL::VERSION</a></div></div></td></tr>
<tr><td class="h"><a name="16"></a>16</td><td class="c0">3</td><td class="c0"><span title="Avg 43µs">128µs</span></td><td class="c3">3</td><td class="c0">2.57ms</td><td class="s"><div class="calls"><div class="calls_in"># spent 2.33ms (1.02+1.31) within IO::Uncompress::Gunzip::BEGIN@16 which was called
# once (1.02ms+1.31ms) by Net::HTTP::Methods::gunzip_ok at <a href="IO-Uncompress-Gunzip-pm-block.html#16">line 16</a></div></div>use IO::Compress::Gzip::Constants 2.020 ;<div class="calls"><div class="calls_out"># spent 2.33ms making 1 call to <a href="IO-Uncompress-Gunzip-pm-block.html#16">IO::Uncompress::Gunzip::BEGIN@16</a>
# spent 225µs making 1 call to <a href="Exporter-pm-block.html#31">Exporter::import</a>
# spent 13µs making 1 call to <a >UNIVERSAL::VERSION</a></div></div></td></tr>
<tr><td class="h"><a name="17"></a>17</td><td class="c0">3</td><td class="c0"><span title="Avg 87µs">262µs</span></td><td class="c3">2</td><td class="c0">983µs</td><td class="s"><div class="calls"><div class="calls_in"># spent 974µs (674+300) within IO::Uncompress::Gunzip::BEGIN@17 which was called
# once (674µs+300µs) by Net::HTTP::Methods::gunzip_ok at <a href="IO-Uncompress-Gunzip-pm-block.html#17">line 17</a></div></div>use IO::Compress::Zlib::Extra 2.020 ;<div class="calls"><div class="calls_out"># spent 974µs making 1 call to <a href="IO-Uncompress-Gunzip-pm-block.html#17">IO::Uncompress::Gunzip::BEGIN@17</a>
# spent 10µs making 1 call to <a >UNIVERSAL::VERSION</a></div></div></td></tr>
<tr><td class="h"><a name="18"></a>18</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="19"></a>19</td><td class="c3">1</td><td class="c3"><span title="Avg 300ns">300ns</span></td><td></td><td></td><td class="s">require Exporter ;</td></tr>
<tr><td class="h"><a name="20"></a>20</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="21"></a>21</td><td class="c3">1</td><td class="c3"><span title="Avg 600ns">600ns</span></td><td></td><td></td><td class="s">our ($VERSION, @ISA, @EXPORT_OK, %EXPORT_TAGS, $GunzipError);</td></tr>
<tr><td class="h"><a name="22"></a>22</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="23"></a>23</td><td class="c3">1</td><td class="c3"><span title="Avg 15µs">15µs</span></td><td></td><td></td><td class="s">@ISA = qw( Exporter IO::Uncompress::RawInflate );</td></tr>
<tr><td class="h"><a name="24"></a>24</td><td class="c3">1</td><td class="c3"><span title="Avg 700ns">700ns</span></td><td></td><td></td><td class="s">@EXPORT_OK = qw( $GunzipError gunzip );</td></tr>
<tr><td class="h"><a name="25"></a>25</td><td class="c3">1</td><td class="c3"><span title="Avg 800ns">800ns</span></td><td></td><td></td><td class="s">%EXPORT_TAGS = %IO::Uncompress::RawInflate::DEFLATE_CONSTANTS ;</td></tr>
<tr><td class="h"><a name="26"></a>26</td><td class="c3">1</td><td class="c3"><span title="Avg 1µs">1µs</span></td><td></td><td></td><td class="s">push @{ $EXPORT_TAGS{all} }, @EXPORT_OK ;</td></tr>
<tr><td class="h"><a name="27"></a>27</td><td class="c3">1</td><td class="c3"><span title="Avg 2µs">2µs</span></td><td class="c3">1</td><td class="c3">16µs</td><td class="s">Exporter::export_ok_tags('all');<div class="calls"><div class="calls_out"># spent 16µs making 1 call to <a href="Exporter-pm-block.html#89">Exporter::export_ok_tags</a></div></div></td></tr>
<tr><td class="h"><a name="28"></a>28</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="29"></a>29</td><td class="c3">1</td><td class="c3"><span title="Avg 300ns">300ns</span></td><td></td><td></td><td class="s">$GunzipError = '';</td></tr>
<tr><td class="h"><a name="30"></a>30</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="31"></a>31</td><td class="c3">1</td><td class="c3"><span title="Avg 200ns">200ns</span></td><td></td><td></td><td class="s">$VERSION = '2.020';</td></tr>
<tr><td class="h"><a name="32"></a>32</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="33"></a>33</td><td></td><td></td><td></td><td></td><td class="s">sub new</td></tr>
<tr><td class="h"><a name="34"></a>34</td><td></td><td></td><td></td><td></td><td class="s">{</td></tr>
<tr><td class="h"><a name="35"></a>35</td><td></td><td></td><td></td><td></td><td class="s"> my $class = shift ;</td></tr>
<tr><td class="h"><a name="36"></a>36</td><td></td><td></td><td></td><td></td><td class="s"> $GunzipError = '';</td></tr>
<tr><td class="h"><a name="37"></a>37</td><td></td><td></td><td></td><td></td><td class="s"> my $obj = createSelfTiedObject($class, \$GunzipError);</td></tr>
<tr><td class="h"><a name="38"></a>38</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="39"></a>39</td><td></td><td></td><td></td><td></td><td class="s"> $obj->_create(undef, 0, @_);</td></tr>
<tr><td class="h"><a name="40"></a>40</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="41"></a>41</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="42"></a>42</td><td></td><td></td><td></td><td></td><td class="s">sub gunzip</td></tr>
<tr><td class="h"><a name="43"></a>43</td><td></td><td></td><td></td><td></td><td class="s">{</td></tr>
<tr><td class="h"><a name="44"></a>44</td><td></td><td></td><td></td><td></td><td class="s"> my $obj = createSelfTiedObject(undef, \$GunzipError);</td></tr>
<tr><td class="h"><a name="45"></a>45</td><td></td><td></td><td></td><td></td><td class="s"> return $obj->_inf(@_) ;</td></tr>
<tr><td class="h"><a name="46"></a>46</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="47"></a>47</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="48"></a>48</td><td></td><td></td><td></td><td></td><td class="s">sub getExtraParams</td></tr>
<tr><td class="h"><a name="49"></a>49</td><td></td><td></td><td></td><td></td><td class="s">{</td></tr>
<tr><td class="h"><a name="50"></a>50</td><td class="c0">3</td><td class="c0"><span title="Avg 249µs">747µs</span></td><td class="c3">3</td><td class="c3">284µs</td><td class="s"><div class="calls"><div class="calls_in"># spent 148µs (13+135) within IO::Uncompress::Gunzip::BEGIN@50 which was called
# once (13µs+135µs) by Net::HTTP::Methods::gunzip_ok at <a href="IO-Uncompress-Gunzip-pm-block.html#50">line 50</a></div></div> use IO::Compress::Base::Common 2.020 qw(:Parse);<div class="calls"><div class="calls_out"> # spent 148µs making 1 call to <a href="IO-Uncompress-Gunzip-pm-block.html#50">IO::Uncompress::Gunzip::BEGIN@50</a>
# spent 123µs making 1 call to <a href="Exporter-pm-block.html#31">Exporter::import</a>
# spent 12µs making 1 call to <a >UNIVERSAL::VERSION</a></div></div></td></tr>
<tr><td class="h"><a name="51"></a>51</td><td></td><td></td><td></td><td></td><td class="s"> return ( 'ParseExtra' => [1, 1, Parse_boolean, 0] ) ;</td></tr>
<tr><td class="h"><a name="52"></a>52</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="53"></a>53</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="54"></a>54</td><td></td><td></td><td></td><td></td><td class="s">sub ckParams</td></tr>
<tr><td class="h"><a name="55"></a>55</td><td></td><td></td><td></td><td></td><td class="s">{</td></tr>
<tr><td class="h"><a name="56"></a>56</td><td></td><td></td><td></td><td></td><td class="s"> my $self = shift ;</td></tr>
<tr><td class="h"><a name="57"></a>57</td><td></td><td></td><td></td><td></td><td class="s"> my $got = shift ;</td></tr>
<tr><td class="h"><a name="58"></a>58</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="59"></a>59</td><td></td><td></td><td></td><td></td><td class="s"> # gunzip always needs crc32</td></tr>
<tr><td class="h"><a name="60"></a>60</td><td></td><td></td><td></td><td></td><td class="s"> $got->value('CRC32' => 1);</td></tr>
<tr><td class="h"><a name="61"></a>61</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="62"></a>62</td><td></td><td></td><td></td><td></td><td class="s"> return 1;</td></tr>
<tr><td class="h"><a name="63"></a>63</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="64"></a>64</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="65"></a>65</td><td></td><td></td><td></td><td></td><td class="s">sub ckMagic</td></tr>
<tr><td class="h"><a name="66"></a>66</td><td></td><td></td><td></td><td></td><td class="s">{</td></tr>
<tr><td class="h"><a name="67"></a>67</td><td></td><td></td><td></td><td></td><td class="s"> my $self = shift;</td></tr>
<tr><td class="h"><a name="68"></a>68</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="69"></a>69</td><td></td><td></td><td></td><td></td><td class="s"> my $magic ;</td></tr>
<tr><td class="h"><a name="70"></a>70</td><td></td><td></td><td></td><td></td><td class="s"> $self->smartReadExact(\$magic, GZIP_ID_SIZE);</td></tr>
<tr><td class="h"><a name="71"></a>71</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="72"></a>72</td><td></td><td></td><td></td><td></td><td class="s"> *$self->{HeaderPending} = $magic ;</td></tr>
<tr><td class="h"><a name="73"></a>73</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="74"></a>74</td><td></td><td></td><td></td><td></td><td class="s"> return $self->HeaderError("Minimum header size is " . </td></tr>
<tr><td class="h"><a name="75"></a>75</td><td></td><td></td><td></td><td></td><td class="s"> GZIP_MIN_HEADER_SIZE . " bytes") </td></tr>
<tr><td class="h"><a name="76"></a>76</td><td></td><td></td><td></td><td></td><td class="s"> if length $magic != GZIP_ID_SIZE ; </td></tr>
<tr><td class="h"><a name="77"></a>77</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="78"></a>78</td><td></td><td></td><td></td><td></td><td class="s"> return $self->HeaderError("Bad Magic")</td></tr>
<tr><td class="h"><a name="79"></a>79</td><td></td><td></td><td></td><td></td><td class="s"> if ! isGzipMagic($magic) ;</td></tr>
<tr><td class="h"><a name="80"></a>80</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="81"></a>81</td><td></td><td></td><td></td><td></td><td class="s"> *$self->{Type} = 'rfc1952';</td></tr>
<tr><td class="h"><a name="82"></a>82</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="83"></a>83</td><td></td><td></td><td></td><td></td><td class="s"> return $magic ;</td></tr>
<tr><td class="h"><a name="84"></a>84</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="85"></a>85</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="86"></a>86</td><td></td><td></td><td></td><td></td><td class="s">sub readHeader</td></tr>
<tr><td class="h"><a name="87"></a>87</td><td></td><td></td><td></td><td></td><td class="s">{</td></tr>
<tr><td class="h"><a name="88"></a>88</td><td></td><td></td><td></td><td></td><td class="s"> my $self = shift;</td></tr>
<tr><td class="h"><a name="89"></a>89</td><td></td><td></td><td></td><td></td><td class="s"> my $magic = shift;</td></tr>
<tr><td class="h"><a name="90"></a>90</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="91"></a>91</td><td></td><td></td><td></td><td></td><td class="s"> return $self->_readGzipHeader($magic);</td></tr>
<tr><td class="h"><a name="92"></a>92</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="93"></a>93</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="94"></a>94</td><td></td><td></td><td></td><td></td><td class="s">sub chkTrailer</td></tr>
<tr><td class="h"><a name="95"></a>95</td><td></td><td></td><td></td><td></td><td class="s">{</td></tr>
<tr><td class="h"><a name="96"></a>96</td><td></td><td></td><td></td><td></td><td class="s"> my $self = shift;</td></tr>
<tr><td class="h"><a name="97"></a>97</td><td></td><td></td><td></td><td></td><td class="s"> my $trailer = shift;</td></tr>
<tr><td class="h"><a name="98"></a>98</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="99"></a>99</td><td></td><td></td><td></td><td></td><td class="s"> # Check CRC & ISIZE </td></tr>
<tr><td class="h"><a name="100"></a>100</td><td></td><td></td><td></td><td></td><td class="s"> my ($CRC32, $ISIZE) = unpack("V V", $trailer) ;</td></tr>
<tr><td class="h"><a name="101"></a>101</td><td></td><td></td><td></td><td></td><td class="s"> *$self->{Info}{CRC32} = $CRC32; </td></tr>
<tr><td class="h"><a name="102"></a>102</td><td></td><td></td><td></td><td></td><td class="s"> *$self->{Info}{ISIZE} = $ISIZE; </td></tr>
<tr><td class="h"><a name="103"></a>103</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="104"></a>104</td><td></td><td></td><td></td><td></td><td class="s"> if (*$self->{Strict}) {</td></tr>
<tr><td class="h"><a name="105"></a>105</td><td></td><td></td><td></td><td></td><td class="s"> return $self->TrailerError("CRC mismatch")</td></tr>
<tr><td class="h"><a name="106"></a>106</td><td></td><td></td><td></td><td></td><td class="s"> if $CRC32 != *$self->{Uncomp}->crc32() ;</td></tr>
<tr><td class="h"><a name="107"></a>107</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="108"></a>108</td><td></td><td></td><td></td><td></td><td class="s"> my $exp_isize = *$self->{UnCompSize}->get32bit();</td></tr>
<tr><td class="h"><a name="109"></a>109</td><td></td><td></td><td></td><td></td><td class="s"> return $self->TrailerError("ISIZE mismatch. Got $ISIZE"</td></tr>
<tr><td class="h"><a name="110"></a>110</td><td></td><td></td><td></td><td></td><td class="s"> . ", expected $exp_isize")</td></tr>
<tr><td class="h"><a name="111"></a>111</td><td></td><td></td><td></td><td></td><td class="s"> if $ISIZE != $exp_isize ;</td></tr>
<tr><td class="h"><a name="112"></a>112</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="113"></a>113</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="114"></a>114</td><td></td><td></td><td></td><td></td><td class="s"> return STATUS_OK;</td></tr>
<tr><td class="h"><a name="115"></a>115</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="116"></a>116</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="117"></a>117</td><td></td><td></td><td></td><td></td><td class="s">sub isGzipMagic</td></tr>
<tr><td class="h"><a name="118"></a>118</td><td></td><td></td><td></td><td></td><td class="s">{</td></tr>
<tr><td class="h"><a name="119"></a>119</td><td></td><td></td><td></td><td></td><td class="s"> my $buffer = shift ;</td></tr>
<tr><td class="h"><a name="120"></a>120</td><td></td><td></td><td></td><td></td><td class="s"> return 0 if length $buffer < GZIP_ID_SIZE ;</td></tr>
<tr><td class="h"><a name="121"></a>121</td><td></td><td></td><td></td><td></td><td class="s"> my ($id1, $id2) = unpack("C C", $buffer) ;</td></tr>
<tr><td class="h"><a name="122"></a>122</td><td></td><td></td><td></td><td></td><td class="s"> return $id1 == GZIP_ID1 && $id2 == GZIP_ID2 ;</td></tr>
<tr><td class="h"><a name="123"></a>123</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="124"></a>124</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="125"></a>125</td><td></td><td></td><td></td><td></td><td class="s">sub _readFullGzipHeader($)</td></tr>
<tr><td class="h"><a name="126"></a>126</td><td></td><td></td><td></td><td></td><td class="s">{</td></tr>
<tr><td class="h"><a name="127"></a>127</td><td></td><td></td><td></td><td></td><td class="s"> my ($self) = @_ ;</td></tr>
<tr><td class="h"><a name="128"></a>128</td><td></td><td></td><td></td><td></td><td class="s"> my $magic = '' ;</td></tr>
<tr><td class="h"><a name="129"></a>129</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="130"></a>130</td><td></td><td></td><td></td><td></td><td class="s"> $self->smartReadExact(\$magic, GZIP_ID_SIZE);</td></tr>
<tr><td class="h"><a name="131"></a>131</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="132"></a>132</td><td></td><td></td><td></td><td></td><td class="s"> *$self->{HeaderPending} = $magic ;</td></tr>
<tr><td class="h"><a name="133"></a>133</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="134"></a>134</td><td></td><td></td><td></td><td></td><td class="s"> return $self->HeaderError("Minimum header size is " . </td></tr>
<tr><td class="h"><a name="135"></a>135</td><td></td><td></td><td></td><td></td><td class="s"> GZIP_MIN_HEADER_SIZE . " bytes") </td></tr>
<tr><td class="h"><a name="136"></a>136</td><td></td><td></td><td></td><td></td><td class="s"> if length $magic != GZIP_ID_SIZE ; </td></tr>
<tr><td class="h"><a name="137"></a>137</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="138"></a>138</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="139"></a>139</td><td></td><td></td><td></td><td></td><td class="s"> return $self->HeaderError("Bad Magic")</td></tr>
<tr><td class="h"><a name="140"></a>140</td><td></td><td></td><td></td><td></td><td class="s"> if ! isGzipMagic($magic) ;</td></tr>
<tr><td class="h"><a name="141"></a>141</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="142"></a>142</td><td></td><td></td><td></td><td></td><td class="s"> my $status = $self->_readGzipHeader($magic);</td></tr>
<tr><td class="h"><a name="143"></a>143</td><td></td><td></td><td></td><td></td><td class="s"> delete *$self->{Transparent} if ! defined $status ;</td></tr>
<tr><td class="h"><a name="144"></a>144</td><td></td><td></td><td></td><td></td><td class="s"> return $status ;</td></tr>
<tr><td class="h"><a name="145"></a>145</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="146"></a>146</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="147"></a>147</td><td></td><td></td><td></td><td></td><td class="s">sub _readGzipHeader($)</td></tr>
<tr><td class="h"><a name="148"></a>148</td><td></td><td></td><td></td><td></td><td class="s">{</td></tr>
<tr><td class="h"><a name="149"></a>149</td><td></td><td></td><td></td><td></td><td class="s"> my ($self, $magic) = @_ ;</td></tr>
<tr><td class="h"><a name="150"></a>150</td><td></td><td></td><td></td><td></td><td class="s"> my ($HeaderCRC) ;</td></tr>
<tr><td class="h"><a name="151"></a>151</td><td></td><td></td><td></td><td></td><td class="s"> my ($buffer) = '' ;</td></tr>
<tr><td class="h"><a name="152"></a>152</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="153"></a>153</td><td></td><td></td><td></td><td></td><td class="s"> $self->smartReadExact(\$buffer, GZIP_MIN_HEADER_SIZE - GZIP_ID_SIZE)</td></tr>
<tr><td class="h"><a name="154"></a>154</td><td></td><td></td><td></td><td></td><td class="s"> or return $self->HeaderError("Minimum header size is " . </td></tr>
<tr><td class="h"><a name="155"></a>155</td><td></td><td></td><td></td><td></td><td class="s"> GZIP_MIN_HEADER_SIZE . " bytes") ;</td></tr>
<tr><td class="h"><a name="156"></a>156</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="157"></a>157</td><td></td><td></td><td></td><td></td><td class="s"> my $keep = $magic . $buffer ;</td></tr>
<tr><td class="h"><a name="158"></a>158</td><td></td><td></td><td></td><td></td><td class="s"> *$self->{HeaderPending} = $keep ;</td></tr>
<tr><td class="h"><a name="159"></a>159</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="160"></a>160</td><td></td><td></td><td></td><td></td><td class="s"> # now split out the various parts</td></tr>
<tr><td class="h"><a name="161"></a>161</td><td></td><td></td><td></td><td></td><td class="s"> my ($cm, $flag, $mtime, $xfl, $os) = unpack("C C V C C", $buffer) ;</td></tr>
<tr><td class="h"><a name="162"></a>162</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="163"></a>163</td><td></td><td></td><td></td><td></td><td class="s"> $cm == GZIP_CM_DEFLATED </td></tr>
<tr><td class="h"><a name="164"></a>164</td><td></td><td></td><td></td><td></td><td class="s"> or return $self->HeaderError("Not Deflate (CM is $cm)") ;</td></tr>
<tr><td class="h"><a name="165"></a>165</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="166"></a>166</td><td></td><td></td><td></td><td></td><td class="s"> # check for use of reserved bits</td></tr>
<tr><td class="h"><a name="167"></a>167</td><td></td><td></td><td></td><td></td><td class="s"> return $self->HeaderError("Use of Reserved Bits in FLG field.")</td></tr>
<tr><td class="h"><a name="168"></a>168</td><td></td><td></td><td></td><td></td><td class="s"> if $flag & GZIP_FLG_RESERVED ; </td></tr>
<tr><td class="h"><a name="169"></a>169</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="170"></a>170</td><td></td><td></td><td></td><td></td><td class="s"> my $EXTRA ;</td></tr>
<tr><td class="h"><a name="171"></a>171</td><td></td><td></td><td></td><td></td><td class="s"> my @EXTRA = () ;</td></tr>
<tr><td class="h"><a name="172"></a>172</td><td></td><td></td><td></td><td></td><td class="s"> if ($flag & GZIP_FLG_FEXTRA) {</td></tr>
<tr><td class="h"><a name="173"></a>173</td><td></td><td></td><td></td><td></td><td class="s"> $EXTRA = "" ;</td></tr>
<tr><td class="h"><a name="174"></a>174</td><td></td><td></td><td></td><td></td><td class="s"> $self->smartReadExact(\$buffer, GZIP_FEXTRA_HEADER_SIZE) </td></tr>
<tr><td class="h"><a name="175"></a>175</td><td></td><td></td><td></td><td></td><td class="s"> or return $self->TruncatedHeader("FEXTRA Length") ;</td></tr>
<tr><td class="h"><a name="176"></a>176</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="177"></a>177</td><td></td><td></td><td></td><td></td><td class="s"> my ($XLEN) = unpack("v", $buffer) ;</td></tr>
<tr><td class="h"><a name="178"></a>178</td><td></td><td></td><td></td><td></td><td class="s"> $self->smartReadExact(\$EXTRA, $XLEN) </td></tr>
<tr><td class="h"><a name="179"></a>179</td><td></td><td></td><td></td><td></td><td class="s"> or return $self->TruncatedHeader("FEXTRA Body");</td></tr>
<tr><td class="h"><a name="180"></a>180</td><td></td><td></td><td></td><td></td><td class="s"> $keep .= $buffer . $EXTRA ;</td></tr>
<tr><td class="h"><a name="181"></a>181</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="182"></a>182</td><td></td><td></td><td></td><td></td><td class="s"> if ($XLEN && *$self->{'ParseExtra'}) {</td></tr>
<tr><td class="h"><a name="183"></a>183</td><td></td><td></td><td></td><td></td><td class="s"> my $bad = IO::Compress::Zlib::Extra::parseRawExtra($EXTRA,</td></tr>
<tr><td class="h"><a name="184"></a>184</td><td></td><td></td><td></td><td></td><td class="s"> \@EXTRA, 1, 1);</td></tr>
<tr><td class="h"><a name="185"></a>185</td><td></td><td></td><td></td><td></td><td class="s"> return $self->HeaderError($bad)</td></tr>
<tr><td class="h"><a name="186"></a>186</td><td></td><td></td><td></td><td></td><td class="s"> if defined $bad;</td></tr>
<tr><td class="h"><a name="187"></a>187</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="188"></a>188</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="189"></a>189</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="190"></a>190</td><td></td><td></td><td></td><td></td><td class="s"> my $origname ;</td></tr>
<tr><td class="h"><a name="191"></a>191</td><td></td><td></td><td></td><td></td><td class="s"> if ($flag & GZIP_FLG_FNAME) {</td></tr>
<tr><td class="h"><a name="192"></a>192</td><td></td><td></td><td></td><td></td><td class="s"> $origname = "" ;</td></tr>
<tr><td class="h"><a name="193"></a>193</td><td></td><td></td><td></td><td></td><td class="s"> while (1) {</td></tr>
<tr><td class="h"><a name="194"></a>194</td><td></td><td></td><td></td><td></td><td class="s"> $self->smartReadExact(\$buffer, 1) </td></tr>
<tr><td class="h"><a name="195"></a>195</td><td></td><td></td><td></td><td></td><td class="s"> or return $self->TruncatedHeader("FNAME");</td></tr>
<tr><td class="h"><a name="196"></a>196</td><td></td><td></td><td></td><td></td><td class="s"> last if $buffer eq GZIP_NULL_BYTE ;</td></tr>
<tr><td class="h"><a name="197"></a>197</td><td></td><td></td><td></td><td></td><td class="s"> $origname .= $buffer </td></tr>
<tr><td class="h"><a name="198"></a>198</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="199"></a>199</td><td></td><td></td><td></td><td></td><td class="s"> $keep .= $origname . GZIP_NULL_BYTE ;</td></tr>
<tr><td class="h"><a name="200"></a>200</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="201"></a>201</td><td></td><td></td><td></td><td></td><td class="s"> return $self->HeaderError("Non ISO 8859-1 Character found in Name")</td></tr>
<tr><td class="h"><a name="202"></a>202</td><td></td><td></td><td></td><td></td><td class="s"> if *$self->{Strict} && $origname =~ /$GZIP_FNAME_INVALID_CHAR_RE/o ;</td></tr>
<tr><td class="h"><a name="203"></a>203</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="204"></a>204</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="205"></a>205</td><td></td><td></td><td></td><td></td><td class="s"> my $comment ;</td></tr>
<tr><td class="h"><a name="206"></a>206</td><td></td><td></td><td></td><td></td><td class="s"> if ($flag & GZIP_FLG_FCOMMENT) {</td></tr>
<tr><td class="h"><a name="207"></a>207</td><td></td><td></td><td></td><td></td><td class="s"> $comment = "";</td></tr>
<tr><td class="h"><a name="208"></a>208</td><td></td><td></td><td></td><td></td><td class="s"> while (1) {</td></tr>
<tr><td class="h"><a name="209"></a>209</td><td></td><td></td><td></td><td></td><td class="s"> $self->smartReadExact(\$buffer, 1) </td></tr>
<tr><td class="h"><a name="210"></a>210</td><td></td><td></td><td></td><td></td><td class="s"> or return $self->TruncatedHeader("FCOMMENT");</td></tr>
<tr><td class="h"><a name="211"></a>211</td><td></td><td></td><td></td><td></td><td class="s"> last if $buffer eq GZIP_NULL_BYTE ;</td></tr>
<tr><td class="h"><a name="212"></a>212</td><td></td><td></td><td></td><td></td><td class="s"> $comment .= $buffer </td></tr>
<tr><td class="h"><a name="213"></a>213</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="214"></a>214</td><td></td><td></td><td></td><td></td><td class="s"> $keep .= $comment . GZIP_NULL_BYTE ;</td></tr>
<tr><td class="h"><a name="215"></a>215</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="216"></a>216</td><td></td><td></td><td></td><td></td><td class="s"> return $self->HeaderError("Non ISO 8859-1 Character found in Comment")</td></tr>
<tr><td class="h"><a name="217"></a>217</td><td></td><td></td><td></td><td></td><td class="s"> if *$self->{Strict} && $comment =~ /$GZIP_FCOMMENT_INVALID_CHAR_RE/o ;</td></tr>
<tr><td class="h"><a name="218"></a>218</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="219"></a>219</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="220"></a>220</td><td></td><td></td><td></td><td></td><td class="s"> if ($flag & GZIP_FLG_FHCRC) {</td></tr>
<tr><td class="h"><a name="221"></a>221</td><td></td><td></td><td></td><td></td><td class="s"> $self->smartReadExact(\$buffer, GZIP_FHCRC_SIZE) </td></tr>
<tr><td class="h"><a name="222"></a>222</td><td></td><td></td><td></td><td></td><td class="s"> or return $self->TruncatedHeader("FHCRC");</td></tr>
<tr><td class="h"><a name="223"></a>223</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="224"></a>224</td><td></td><td></td><td></td><td></td><td class="s"> $HeaderCRC = unpack("v", $buffer) ;</td></tr>
<tr><td class="h"><a name="225"></a>225</td><td></td><td></td><td></td><td></td><td class="s"> my $crc16 = crc32($keep) & 0xFF ;</td></tr>
<tr><td class="h"><a name="226"></a>226</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="227"></a>227</td><td></td><td></td><td></td><td></td><td class="s"> return $self->HeaderError("CRC16 mismatch.")</td></tr>
<tr><td class="h"><a name="228"></a>228</td><td></td><td></td><td></td><td></td><td class="s"> if *$self->{Strict} && $crc16 != $HeaderCRC;</td></tr>
<tr><td class="h"><a name="229"></a>229</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="230"></a>230</td><td></td><td></td><td></td><td></td><td class="s"> $keep .= $buffer ;</td></tr>
<tr><td class="h"><a name="231"></a>231</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="232"></a>232</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="233"></a>233</td><td></td><td></td><td></td><td></td><td class="s"> # Assume compression method is deflated for xfl tests</td></tr>
<tr><td class="h"><a name="234"></a>234</td><td></td><td></td><td></td><td></td><td class="s"> #if ($xfl) {</td></tr>
<tr><td class="h"><a name="235"></a>235</td><td></td><td></td><td></td><td></td><td class="s"> #}</td></tr>
<tr><td class="h"><a name="236"></a>236</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="237"></a>237</td><td></td><td></td><td></td><td></td><td class="s"> *$self->{Type} = 'rfc1952';</td></tr>
<tr><td class="h"><a name="238"></a>238</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="239"></a>239</td><td></td><td></td><td></td><td></td><td class="s"> return {</td></tr>
<tr><td class="h"><a name="240"></a>240</td><td></td><td></td><td></td><td></td><td class="s"> 'Type' => 'rfc1952',</td></tr>
<tr><td class="h"><a name="241"></a>241</td><td></td><td></td><td></td><td></td><td class="s"> 'FingerprintLength' => 2,</td></tr>
<tr><td class="h"><a name="242"></a>242</td><td></td><td></td><td></td><td></td><td class="s"> 'HeaderLength' => length $keep,</td></tr>
<tr><td class="h"><a name="243"></a>243</td><td></td><td></td><td></td><td></td><td class="s"> 'TrailerLength' => GZIP_TRAILER_SIZE,</td></tr>
<tr><td class="h"><a name="244"></a>244</td><td></td><td></td><td></td><td></td><td class="s"> 'Header' => $keep,</td></tr>
<tr><td class="h"><a name="245"></a>245</td><td></td><td></td><td></td><td></td><td class="s"> 'isMinimalHeader' => $keep eq GZIP_MINIMUM_HEADER ? 1 : 0,</td></tr>
<tr><td class="h"><a name="246"></a>246</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="247"></a>247</td><td></td><td></td><td></td><td></td><td class="s"> 'MethodID' => $cm,</td></tr>
<tr><td class="h"><a name="248"></a>248</td><td></td><td></td><td></td><td></td><td class="s"> 'MethodName' => $cm == GZIP_CM_DEFLATED ? "Deflated" : "Unknown" ,</td></tr>
<tr><td class="h"><a name="249"></a>249</td><td></td><td></td><td></td><td></td><td class="s"> 'TextFlag' => $flag & GZIP_FLG_FTEXT ? 1 : 0,</td></tr>
<tr><td class="h"><a name="250"></a>250</td><td></td><td></td><td></td><td></td><td class="s"> 'HeaderCRCFlag' => $flag & GZIP_FLG_FHCRC ? 1 : 0,</td></tr>
<tr><td class="h"><a name="251"></a>251</td><td></td><td></td><td></td><td></td><td class="s"> 'NameFlag' => $flag & GZIP_FLG_FNAME ? 1 : 0,</td></tr>
<tr><td class="h"><a name="252"></a>252</td><td></td><td></td><td></td><td></td><td class="s"> 'CommentFlag' => $flag & GZIP_FLG_FCOMMENT ? 1 : 0,</td></tr>
<tr><td class="h"><a name="253"></a>253</td><td></td><td></td><td></td><td></td><td class="s"> 'ExtraFlag' => $flag & GZIP_FLG_FEXTRA ? 1 : 0,</td></tr>
<tr><td class="h"><a name="254"></a>254</td><td></td><td></td><td></td><td></td><td class="s"> 'Name' => $origname,</td></tr>
<tr><td class="h"><a name="255"></a>255</td><td></td><td></td><td></td><td></td><td class="s"> 'Comment' => $comment,</td></tr>
<tr><td class="h"><a name="256"></a>256</td><td></td><td></td><td></td><td></td><td class="s"> 'Time' => $mtime,</td></tr>
<tr><td class="h"><a name="257"></a>257</td><td></td><td></td><td></td><td></td><td class="s"> 'OsID' => $os,</td></tr>
<tr><td class="h"><a name="258"></a>258</td><td></td><td></td><td></td><td></td><td class="s"> 'OsName' => defined $GZIP_OS_Names{$os} </td></tr>
<tr><td class="h"><a name="259"></a>259</td><td></td><td></td><td></td><td></td><td class="s"> ? $GZIP_OS_Names{$os} : "Unknown",</td></tr>
<tr><td class="h"><a name="260"></a>260</td><td></td><td></td><td></td><td></td><td class="s"> 'HeaderCRC' => $HeaderCRC,</td></tr>
<tr><td class="h"><a name="261"></a>261</td><td></td><td></td><td></td><td></td><td class="s"> 'Flags' => $flag,</td></tr>
<tr><td class="h"><a name="262"></a>262</td><td></td><td></td><td></td><td></td><td class="s"> 'ExtraFlags' => $xfl,</td></tr>
<tr><td class="h"><a name="263"></a>263</td><td></td><td></td><td></td><td></td><td class="s"> 'ExtraFieldRaw' => $EXTRA,</td></tr>
<tr><td class="h"><a name="264"></a>264</td><td></td><td></td><td></td><td></td><td class="s"> 'ExtraField' => [ @EXTRA ],</td></tr>
<tr><td class="h"><a name="265"></a>265</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="266"></a>266</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="267"></a>267</td><td></td><td></td><td></td><td></td><td class="s"> #'CompSize'=> $compsize,</td></tr>
<tr><td class="h"><a name="268"></a>268</td><td></td><td></td><td></td><td></td><td class="s"> #'CRC32'=> $CRC32,</td></tr>
<tr><td class="h"><a name="269"></a>269</td><td></td><td></td><td></td><td></td><td class="s"> #'OrigSize'=> $ISIZE,</td></tr>
<tr><td class="h"><a name="270"></a>270</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="271"></a>271</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="272"></a>272</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="273"></a>273</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="274"></a>274</td><td class="c3">1</td><td class="c3"><span title="Avg 13µs">13µs</span></td><td></td><td></td><td class="s">1;</td></tr>
<tr><td class="h"><a name="275"></a>275</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="276"></a>276</td><td></td><td></td><td></td><td></td><td class="s">__END__</td></tr>
<tr><td class="h"><a name="277"></a>277</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="278"></a>278</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="279"></a>279</td><td></td><td></td><td></td><td></td><td class="s">=head1 NAME</td></tr>
<tr><td class="h"><a name="280"></a>280</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="281"></a>281</td><td></td><td></td><td></td><td></td><td class="s">IO::Uncompress::Gunzip - Read RFC 1952 files/buffers</td></tr>
<tr><td class="h"><a name="282"></a>282</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="283"></a>283</td><td></td><td></td><td></td><td></td><td class="s">=head1 SYNOPSIS</td></tr>
<tr><td class="h"><a name="284"></a>284</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="285"></a>285</td><td></td><td></td><td></td><td></td><td class="s"> use IO::Uncompress::Gunzip qw(gunzip $GunzipError) ;</td></tr>
<tr><td class="h"><a name="286"></a>286</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="287"></a>287</td><td></td><td></td><td></td><td></td><td class="s"> my $status = gunzip $input => $output [,OPTS]</td></tr>
<tr><td class="h"><a name="288"></a>288</td><td></td><td></td><td></td><td></td><td class="s"> or die "gunzip failed: $GunzipError\n";</td></tr>
<tr><td class="h"><a name="289"></a>289</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="290"></a>290</td><td></td><td></td><td></td><td></td><td class="s"> my $z = new IO::Uncompress::Gunzip $input [OPTS] </td></tr>
<tr><td class="h"><a name="291"></a>291</td><td></td><td></td><td></td><td></td><td class="s"> or die "gunzip failed: $GunzipError\n";</td></tr>
<tr><td class="h"><a name="292"></a>292</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="293"></a>293</td><td></td><td></td><td></td><td></td><td class="s"> $status = $z->read($buffer)</td></tr>
<tr><td class="h"><a name="294"></a>294</td><td></td><td></td><td></td><td></td><td class="s"> $status = $z->read($buffer, $length)</td></tr>
<tr><td class="h"><a name="295"></a>295</td><td></td><td></td><td></td><td></td><td class="s"> $status = $z->read($buffer, $length, $offset)</td></tr>
<tr><td class="h"><a name="296"></a>296</td><td></td><td></td><td></td><td></td><td class="s"> $line = $z->getline()</td></tr>
<tr><td class="h"><a name="297"></a>297</td><td></td><td></td><td></td><td></td><td class="s"> $char = $z->getc()</td></tr>
<tr><td class="h"><a name="298"></a>298</td><td></td><td></td><td></td><td></td><td class="s"> $char = $z->ungetc()</td></tr>
<tr><td class="h"><a name="299"></a>299</td><td></td><td></td><td></td><td></td><td class="s"> $char = $z->opened()</td></tr>
<tr><td class="h"><a name="300"></a>300</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="301"></a>301</td><td></td><td></td><td></td><td></td><td class="s"> $status = $z->inflateSync()</td></tr>
<tr><td class="h"><a name="302"></a>302</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="303"></a>303</td><td></td><td></td><td></td><td></td><td class="s"> $data = $z->trailingData()</td></tr>
<tr><td class="h"><a name="304"></a>304</td><td></td><td></td><td></td><td></td><td class="s"> $status = $z->nextStream()</td></tr>
<tr><td class="h"><a name="305"></a>305</td><td></td><td></td><td></td><td></td><td class="s"> $data = $z->getHeaderInfo()</td></tr>
<tr><td class="h"><a name="306"></a>306</td><td></td><td></td><td></td><td></td><td class="s"> $z->tell()</td></tr>
<tr><td class="h"><a name="307"></a>307</td><td></td><td></td><td></td><td></td><td class="s"> $z->seek($position, $whence)</td></tr>
<tr><td class="h"><a name="308"></a>308</td><td></td><td></td><td></td><td></td><td class="s"> $z->binmode()</td></tr>
<tr><td class="h"><a name="309"></a>309</td><td></td><td></td><td></td><td></td><td class="s"> $z->fileno()</td></tr>
<tr><td class="h"><a name="310"></a>310</td><td></td><td></td><td></td><td></td><td class="s"> $z->eof()</td></tr>
<tr><td class="h"><a name="311"></a>311</td><td></td><td></td><td></td><td></td><td class="s"> $z->close()</td></tr>
<tr><td class="h"><a name="312"></a>312</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="313"></a>313</td><td></td><td></td><td></td><td></td><td class="s"> $GunzipError ;</td></tr>
<tr><td class="h"><a name="314"></a>314</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="315"></a>315</td><td></td><td></td><td></td><td></td><td class="s"> # IO::File mode</td></tr>
<tr><td class="h"><a name="316"></a>316</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="317"></a>317</td><td></td><td></td><td></td><td></td><td class="s"> <$z></td></tr>
<tr><td class="h"><a name="318"></a>318</td><td></td><td></td><td></td><td></td><td class="s"> read($z, $buffer);</td></tr>
<tr><td class="h"><a name="319"></a>319</td><td></td><td></td><td></td><td></td><td class="s"> read($z, $buffer, $length);</td></tr>
<tr><td class="h"><a name="320"></a>320</td><td></td><td></td><td></td><td></td><td class="s"> read($z, $buffer, $length, $offset);</td></tr>
<tr><td class="h"><a name="321"></a>321</td><td></td><td></td><td></td><td></td><td class="s"> tell($z)</td></tr>
<tr><td class="h"><a name="322"></a>322</td><td></td><td></td><td></td><td></td><td class="s"> seek($z, $position, $whence)</td></tr>
<tr><td class="h"><a name="323"></a>323</td><td></td><td></td><td></td><td></td><td class="s"> binmode($z)</td></tr>
<tr><td class="h"><a name="324"></a>324</td><td></td><td></td><td></td><td></td><td class="s"> fileno($z)</td></tr>
<tr><td class="h"><a name="325"></a>325</td><td></td><td></td><td></td><td></td><td class="s"> eof($z)</td></tr>
<tr><td class="h"><a name="326"></a>326</td><td></td><td></td><td></td><td></td><td class="s"> close($z)</td></tr>
<tr><td class="h"><a name="327"></a>327</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="328"></a>328</td><td></td><td></td><td></td><td></td><td class="s">=head1 DESCRIPTION</td></tr>
<tr><td class="h"><a name="329"></a>329</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="330"></a>330</td><td></td><td></td><td></td><td></td><td class="s">This module provides a Perl interface that allows the reading of</td></tr>
<tr><td class="h"><a name="331"></a>331</td><td></td><td></td><td></td><td></td><td class="s">files/buffers that conform to RFC 1952.</td></tr>
<tr><td class="h"><a name="332"></a>332</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="333"></a>333</td><td></td><td></td><td></td><td></td><td class="s">For writing RFC 1952 files/buffers, see the companion module IO::Compress::Gzip.</td></tr>
<tr><td class="h"><a name="334"></a>334</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="335"></a>335</td><td></td><td></td><td></td><td></td><td class="s">=head1 Functional Interface</td></tr>
<tr><td class="h"><a name="336"></a>336</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="337"></a>337</td><td></td><td></td><td></td><td></td><td class="s">A top-level function, C<gunzip>, is provided to carry out</td></tr>
<tr><td class="h"><a name="338"></a>338</td><td></td><td></td><td></td><td></td><td class="s">"one-shot" uncompression between buffers and/or files. For finer</td></tr>
<tr><td class="h"><a name="339"></a>339</td><td></td><td></td><td></td><td></td><td class="s">control over the uncompression process, see the L</"OO Interface"></td></tr>
<tr><td class="h"><a name="340"></a>340</td><td></td><td></td><td></td><td></td><td class="s">section.</td></tr>
<tr><td class="h"><a name="341"></a>341</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="342"></a>342</td><td></td><td></td><td></td><td></td><td class="s"> use IO::Uncompress::Gunzip qw(gunzip $GunzipError) ;</td></tr>
<tr><td class="h"><a name="343"></a>343</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="344"></a>344</td><td></td><td></td><td></td><td></td><td class="s"> gunzip $input => $output [,OPTS] </td></tr>
<tr><td class="h"><a name="345"></a>345</td><td></td><td></td><td></td><td></td><td class="s"> or die "gunzip failed: $GunzipError\n";</td></tr>
<tr><td class="h"><a name="346"></a>346</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="347"></a>347</td><td></td><td></td><td></td><td></td><td class="s">The functional interface needs Perl5.005 or better.</td></tr>
<tr><td class="h"><a name="348"></a>348</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="349"></a>349</td><td></td><td></td><td></td><td></td><td class="s">=head2 gunzip $input => $output [, OPTS]</td></tr>
<tr><td class="h"><a name="350"></a>350</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="351"></a>351</td><td></td><td></td><td></td><td></td><td class="s">C<gunzip> expects at least two parameters, C<$input> and C<$output>.</td></tr>
<tr><td class="h"><a name="352"></a>352</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="353"></a>353</td><td></td><td></td><td></td><td></td><td class="s">=head3 The C<$input> parameter</td></tr>
<tr><td class="h"><a name="354"></a>354</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="355"></a>355</td><td></td><td></td><td></td><td></td><td class="s">The parameter, C<$input>, is used to define the source of</td></tr>
<tr><td class="h"><a name="356"></a>356</td><td></td><td></td><td></td><td></td><td class="s">the compressed data. </td></tr>
<tr><td class="h"><a name="357"></a>357</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="358"></a>358</td><td></td><td></td><td></td><td></td><td class="s">It can take one of the following forms:</td></tr>
<tr><td class="h"><a name="359"></a>359</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="360"></a>360</td><td></td><td></td><td></td><td></td><td class="s">=over 5</td></tr>
<tr><td class="h"><a name="361"></a>361</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="362"></a>362</td><td></td><td></td><td></td><td></td><td class="s">=item A filename</td></tr>
<tr><td class="h"><a name="363"></a>363</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="364"></a>364</td><td></td><td></td><td></td><td></td><td class="s">If the C<$input> parameter is a simple scalar, it is assumed to be a</td></tr>
<tr><td class="h"><a name="365"></a>365</td><td></td><td></td><td></td><td></td><td class="s">filename. This file will be opened for reading and the input data</td></tr>
<tr><td class="h"><a name="366"></a>366</td><td></td><td></td><td></td><td></td><td class="s">will be read from it.</td></tr>
<tr><td class="h"><a name="367"></a>367</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="368"></a>368</td><td></td><td></td><td></td><td></td><td class="s">=item A filehandle</td></tr>
<tr><td class="h"><a name="369"></a>369</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="370"></a>370</td><td></td><td></td><td></td><td></td><td class="s">If the C<$input> parameter is a filehandle, the input data will be</td></tr>
<tr><td class="h"><a name="371"></a>371</td><td></td><td></td><td></td><td></td><td class="s">read from it.</td></tr>
<tr><td class="h"><a name="372"></a>372</td><td></td><td></td><td></td><td></td><td class="s">The string '-' can be used as an alias for standard input.</td></tr>
<tr><td class="h"><a name="373"></a>373</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="374"></a>374</td><td></td><td></td><td></td><td></td><td class="s">=item A scalar reference </td></tr>
<tr><td class="h"><a name="375"></a>375</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="376"></a>376</td><td></td><td></td><td></td><td></td><td class="s">If C<$input> is a scalar reference, the input data will be read</td></tr>
<tr><td class="h"><a name="377"></a>377</td><td></td><td></td><td></td><td></td><td class="s">from C<$$input>.</td></tr>
<tr><td class="h"><a name="378"></a>378</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="379"></a>379</td><td></td><td></td><td></td><td></td><td class="s">=item An array reference </td></tr>
<tr><td class="h"><a name="380"></a>380</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="381"></a>381</td><td></td><td></td><td></td><td></td><td class="s">If C<$input> is an array reference, each element in the array must be a</td></tr>
<tr><td class="h"><a name="382"></a>382</td><td></td><td></td><td></td><td></td><td class="s">filename.</td></tr>
<tr><td class="h"><a name="383"></a>383</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="384"></a>384</td><td></td><td></td><td></td><td></td><td class="s">The input data will be read from each file in turn. </td></tr>
<tr><td class="h"><a name="385"></a>385</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="386"></a>386</td><td></td><td></td><td></td><td></td><td class="s">The complete array will be walked to ensure that it only</td></tr>
<tr><td class="h"><a name="387"></a>387</td><td></td><td></td><td></td><td></td><td class="s">contains valid filenames before any data is uncompressed.</td></tr>
<tr><td class="h"><a name="388"></a>388</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="389"></a>389</td><td></td><td></td><td></td><td></td><td class="s">=item An Input FileGlob string</td></tr>
<tr><td class="h"><a name="390"></a>390</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="391"></a>391</td><td></td><td></td><td></td><td></td><td class="s">If C<$input> is a string that is delimited by the characters "<" and ">"</td></tr>
<tr><td class="h"><a name="392"></a>392</td><td></td><td></td><td></td><td></td><td class="s">C<gunzip> will assume that it is an I<input fileglob string>. The</td></tr>
<tr><td class="h"><a name="393"></a>393</td><td></td><td></td><td></td><td></td><td class="s">input is the list of files that match the fileglob.</td></tr>
<tr><td class="h"><a name="394"></a>394</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="395"></a>395</td><td></td><td></td><td></td><td></td><td class="s">If the fileglob does not match any files ...</td></tr>
<tr><td class="h"><a name="396"></a>396</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="397"></a>397</td><td></td><td></td><td></td><td></td><td class="s">See L<File::GlobMapper|File::GlobMapper> for more details.</td></tr>
<tr><td class="h"><a name="398"></a>398</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="399"></a>399</td><td></td><td></td><td></td><td></td><td class="s">=back</td></tr>
<tr><td class="h"><a name="400"></a>400</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="401"></a>401</td><td></td><td></td><td></td><td></td><td class="s">If the C<$input> parameter is any other type, C<undef> will be returned.</td></tr>
<tr><td class="h"><a name="402"></a>402</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="403"></a>403</td><td></td><td></td><td></td><td></td><td class="s">=head3 The C<$output> parameter</td></tr>
<tr><td class="h"><a name="404"></a>404</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="405"></a>405</td><td></td><td></td><td></td><td></td><td class="s">The parameter C<$output> is used to control the destination of the</td></tr>
<tr><td class="h"><a name="406"></a>406</td><td></td><td></td><td></td><td></td><td class="s">uncompressed data. This parameter can take one of these forms.</td></tr>
<tr><td class="h"><a name="407"></a>407</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="408"></a>408</td><td></td><td></td><td></td><td></td><td class="s">=over 5</td></tr>
<tr><td class="h"><a name="409"></a>409</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="410"></a>410</td><td></td><td></td><td></td><td></td><td class="s">=item A filename</td></tr>
<tr><td class="h"><a name="411"></a>411</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="412"></a>412</td><td></td><td></td><td></td><td></td><td class="s">If the C<$output> parameter is a simple scalar, it is assumed to be a</td></tr>
<tr><td class="h"><a name="413"></a>413</td><td></td><td></td><td></td><td></td><td class="s">filename. This file will be opened for writing and the uncompressed</td></tr>
<tr><td class="h"><a name="414"></a>414</td><td></td><td></td><td></td><td></td><td class="s">data will be written to it.</td></tr>
<tr><td class="h"><a name="415"></a>415</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="416"></a>416</td><td></td><td></td><td></td><td></td><td class="s">=item A filehandle</td></tr>
<tr><td class="h"><a name="417"></a>417</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="418"></a>418</td><td></td><td></td><td></td><td></td><td class="s">If the C<$output> parameter is a filehandle, the uncompressed data</td></tr>
<tr><td class="h"><a name="419"></a>419</td><td></td><td></td><td></td><td></td><td class="s">will be written to it.</td></tr>
<tr><td class="h"><a name="420"></a>420</td><td></td><td></td><td></td><td></td><td class="s">The string '-' can be used as an alias for standard output.</td></tr>
<tr><td class="h"><a name="421"></a>421</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="422"></a>422</td><td></td><td></td><td></td><td></td><td class="s">=item A scalar reference </td></tr>
<tr><td class="h"><a name="423"></a>423</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="424"></a>424</td><td></td><td></td><td></td><td></td><td class="s">If C<$output> is a scalar reference, the uncompressed data will be</td></tr>
<tr><td class="h"><a name="425"></a>425</td><td></td><td></td><td></td><td></td><td class="s">stored in C<$$output>.</td></tr>
<tr><td class="h"><a name="426"></a>426</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="427"></a>427</td><td></td><td></td><td></td><td></td><td class="s">=item An Array Reference</td></tr>
<tr><td class="h"><a name="428"></a>428</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="429"></a>429</td><td></td><td></td><td></td><td></td><td class="s">If C<$output> is an array reference, the uncompressed data will be</td></tr>
<tr><td class="h"><a name="430"></a>430</td><td></td><td></td><td></td><td></td><td class="s">pushed onto the array.</td></tr>
<tr><td class="h"><a name="431"></a>431</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="432"></a>432</td><td></td><td></td><td></td><td></td><td class="s">=item An Output FileGlob</td></tr>
<tr><td class="h"><a name="433"></a>433</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="434"></a>434</td><td></td><td></td><td></td><td></td><td class="s">If C<$output> is a string that is delimited by the characters "<" and ">"</td></tr>
<tr><td class="h"><a name="435"></a>435</td><td></td><td></td><td></td><td></td><td class="s">C<gunzip> will assume that it is an I<output fileglob string>. The</td></tr>
<tr><td class="h"><a name="436"></a>436</td><td></td><td></td><td></td><td></td><td class="s">output is the list of files that match the fileglob.</td></tr>
<tr><td class="h"><a name="437"></a>437</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="438"></a>438</td><td></td><td></td><td></td><td></td><td class="s">When C<$output> is an fileglob string, C<$input> must also be a fileglob</td></tr>
<tr><td class="h"><a name="439"></a>439</td><td></td><td></td><td></td><td></td><td class="s">string. Anything else is an error.</td></tr>
<tr><td class="h"><a name="440"></a>440</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="441"></a>441</td><td></td><td></td><td></td><td></td><td class="s">=back</td></tr>
<tr><td class="h"><a name="442"></a>442</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="443"></a>443</td><td></td><td></td><td></td><td></td><td class="s">If the C<$output> parameter is any other type, C<undef> will be returned.</td></tr>
<tr><td class="h"><a name="444"></a>444</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="445"></a>445</td><td></td><td></td><td></td><td></td><td class="s">=head2 Notes</td></tr>
<tr><td class="h"><a name="446"></a>446</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="447"></a>447</td><td></td><td></td><td></td><td></td><td class="s">When C<$input> maps to multiple compressed files/buffers and C<$output> is</td></tr>
<tr><td class="h"><a name="448"></a>448</td><td></td><td></td><td></td><td></td><td class="s">a single file/buffer, after uncompression C<$output> will contain a</td></tr>
<tr><td class="h"><a name="449"></a>449</td><td></td><td></td><td></td><td></td><td class="s">concatenation of all the uncompressed data from each of the input</td></tr>
<tr><td class="h"><a name="450"></a>450</td><td></td><td></td><td></td><td></td><td class="s">files/buffers.</td></tr>
<tr><td class="h"><a name="451"></a>451</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="452"></a>452</td><td></td><td></td><td></td><td></td><td class="s">=head2 Optional Parameters</td></tr>
<tr><td class="h"><a name="453"></a>453</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="454"></a>454</td><td></td><td></td><td></td><td></td><td class="s">Unless specified below, the optional parameters for C<gunzip>,</td></tr>
<tr><td class="h"><a name="455"></a>455</td><td></td><td></td><td></td><td></td><td class="s">C<OPTS>, are the same as those used with the OO interface defined in the</td></tr>
<tr><td class="h"><a name="456"></a>456</td><td></td><td></td><td></td><td></td><td class="s">L</"Constructor Options"> section below.</td></tr>
<tr><td class="h"><a name="457"></a>457</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="458"></a>458</td><td></td><td></td><td></td><td></td><td class="s">=over 5</td></tr>
<tr><td class="h"><a name="459"></a>459</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="460"></a>460</td><td></td><td></td><td></td><td></td><td class="s">=item C<< AutoClose => 0|1 >></td></tr>
<tr><td class="h"><a name="461"></a>461</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="462"></a>462</td><td></td><td></td><td></td><td></td><td class="s">This option applies to any input or output data streams to </td></tr>
<tr><td class="h"><a name="463"></a>463</td><td></td><td></td><td></td><td></td><td class="s">C<gunzip> that are filehandles.</td></tr>
<tr><td class="h"><a name="464"></a>464</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="465"></a>465</td><td></td><td></td><td></td><td></td><td class="s">If C<AutoClose> is specified, and the value is true, it will result in all</td></tr>
<tr><td class="h"><a name="466"></a>466</td><td></td><td></td><td></td><td></td><td class="s">input and/or output filehandles being closed once C<gunzip> has</td></tr>
<tr><td class="h"><a name="467"></a>467</td><td></td><td></td><td></td><td></td><td class="s">completed.</td></tr>
<tr><td class="h"><a name="468"></a>468</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="469"></a>469</td><td></td><td></td><td></td><td></td><td class="s">This parameter defaults to 0.</td></tr>
<tr><td class="h"><a name="470"></a>470</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="471"></a>471</td><td></td><td></td><td></td><td></td><td class="s">=item C<< BinModeOut => 0|1 >></td></tr>
<tr><td class="h"><a name="472"></a>472</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="473"></a>473</td><td></td><td></td><td></td><td></td><td class="s">When writing to a file or filehandle, set C<binmode> before writing to the</td></tr>
<tr><td class="h"><a name="474"></a>474</td><td></td><td></td><td></td><td></td><td class="s">file.</td></tr>
<tr><td class="h"><a name="475"></a>475</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="476"></a>476</td><td></td><td></td><td></td><td></td><td class="s">Defaults to 0.</td></tr>
<tr><td class="h"><a name="477"></a>477</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="478"></a>478</td><td></td><td></td><td></td><td></td><td class="s">=item C<< Append => 0|1 >></td></tr>
<tr><td class="h"><a name="479"></a>479</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="480"></a>480</td><td></td><td></td><td></td><td></td><td class="s">TODO</td></tr>
<tr><td class="h"><a name="481"></a>481</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="482"></a>482</td><td></td><td></td><td></td><td></td><td class="s">=item C<< MultiStream => 0|1 >></td></tr>
<tr><td class="h"><a name="483"></a>483</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="484"></a>484</td><td></td><td></td><td></td><td></td><td class="s">If the input file/buffer contains multiple compressed data streams, this</td></tr>
<tr><td class="h"><a name="485"></a>485</td><td></td><td></td><td></td><td></td><td class="s">option will uncompress the whole lot as a single data stream.</td></tr>
<tr><td class="h"><a name="486"></a>486</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="487"></a>487</td><td></td><td></td><td></td><td></td><td class="s">Defaults to 0.</td></tr>
<tr><td class="h"><a name="488"></a>488</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="489"></a>489</td><td></td><td></td><td></td><td></td><td class="s">=item C<< TrailingData => $scalar >></td></tr>
<tr><td class="h"><a name="490"></a>490</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="491"></a>491</td><td></td><td></td><td></td><td></td><td class="s">Returns the data, if any, that is present immediately after the compressed</td></tr>
<tr><td class="h"><a name="492"></a>492</td><td></td><td></td><td></td><td></td><td class="s">data stream once uncompression is complete. </td></tr>
<tr><td class="h"><a name="493"></a>493</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="494"></a>494</td><td></td><td></td><td></td><td></td><td class="s">This option can be used when there is useful information immediately</td></tr>
<tr><td class="h"><a name="495"></a>495</td><td></td><td></td><td></td><td></td><td class="s">following the compressed data stream, and you don't know the length of the</td></tr>
<tr><td class="h"><a name="496"></a>496</td><td></td><td></td><td></td><td></td><td class="s">compressed data stream.</td></tr>
<tr><td class="h"><a name="497"></a>497</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="498"></a>498</td><td></td><td></td><td></td><td></td><td class="s">If the input is a buffer, C<trailingData> will return everything from the</td></tr>
<tr><td class="h"><a name="499"></a>499</td><td></td><td></td><td></td><td></td><td class="s">end of the compressed data stream to the end of the buffer.</td></tr>
<tr><td class="h"><a name="500"></a>500</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="501"></a>501</td><td></td><td></td><td></td><td></td><td class="s">If the input is a filehandle, C<trailingData> will return the data that is</td></tr>
<tr><td class="h"><a name="502"></a>502</td><td></td><td></td><td></td><td></td><td class="s">left in the filehandle input buffer once the end of the compressed data</td></tr>
<tr><td class="h"><a name="503"></a>503</td><td></td><td></td><td></td><td></td><td class="s">stream has been reached. You can then use the filehandle to read the rest</td></tr>
<tr><td class="h"><a name="504"></a>504</td><td></td><td></td><td></td><td></td><td class="s">of the input file. </td></tr>
<tr><td class="h"><a name="505"></a>505</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="506"></a>506</td><td></td><td></td><td></td><td></td><td class="s">Don't bother using C<trailingData> if the input is a filename.</td></tr>
<tr><td class="h"><a name="507"></a>507</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="508"></a>508</td><td></td><td></td><td></td><td></td><td class="s">If you know the length of the compressed data stream before you start</td></tr>
<tr><td class="h"><a name="509"></a>509</td><td></td><td></td><td></td><td></td><td class="s">uncompressing, you can avoid having to use C<trailingData> by setting the</td></tr>
<tr><td class="h"><a name="510"></a>510</td><td></td><td></td><td></td><td></td><td class="s">C<InputLength> option.</td></tr>
<tr><td class="h"><a name="511"></a>511</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="512"></a>512</td><td></td><td></td><td></td><td></td><td class="s">=back</td></tr>
<tr><td class="h"><a name="513"></a>513</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="514"></a>514</td><td></td><td></td><td></td><td></td><td class="s">=head2 Examples</td></tr>
<tr><td class="h"><a name="515"></a>515</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="516"></a>516</td><td></td><td></td><td></td><td></td><td class="s">To read the contents of the file C<file1.txt.gz> and write the</td></tr>
<tr><td class="h"><a name="517"></a>517</td><td></td><td></td><td></td><td></td><td class="s">compressed data to the file C<file1.txt>.</td></tr>
<tr><td class="h"><a name="518"></a>518</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="519"></a>519</td><td></td><td></td><td></td><td></td><td class="s"> use strict ;</td></tr>
<tr><td class="h"><a name="520"></a>520</td><td></td><td></td><td></td><td></td><td class="s"> use warnings ;</td></tr>
<tr><td class="h"><a name="521"></a>521</td><td></td><td></td><td></td><td></td><td class="s"> use IO::Uncompress::Gunzip qw(gunzip $GunzipError) ;</td></tr>
<tr><td class="h"><a name="522"></a>522</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="523"></a>523</td><td></td><td></td><td></td><td></td><td class="s"> my $input = "file1.txt.gz";</td></tr>
<tr><td class="h"><a name="524"></a>524</td><td></td><td></td><td></td><td></td><td class="s"> my $output = "file1.txt";</td></tr>
<tr><td class="h"><a name="525"></a>525</td><td></td><td></td><td></td><td></td><td class="s"> gunzip $input => $output</td></tr>
<tr><td class="h"><a name="526"></a>526</td><td></td><td></td><td></td><td></td><td class="s"> or die "gunzip failed: $GunzipError\n";</td></tr>
<tr><td class="h"><a name="527"></a>527</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="528"></a>528</td><td></td><td></td><td></td><td></td><td class="s">To read from an existing Perl filehandle, C<$input>, and write the</td></tr>
<tr><td class="h"><a name="529"></a>529</td><td></td><td></td><td></td><td></td><td class="s">uncompressed data to a buffer, C<$buffer>.</td></tr>
<tr><td class="h"><a name="530"></a>530</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="531"></a>531</td><td></td><td></td><td></td><td></td><td class="s"> use strict ;</td></tr>
<tr><td class="h"><a name="532"></a>532</td><td></td><td></td><td></td><td></td><td class="s"> use warnings ;</td></tr>
<tr><td class="h"><a name="533"></a>533</td><td></td><td></td><td></td><td></td><td class="s"> use IO::Uncompress::Gunzip qw(gunzip $GunzipError) ;</td></tr>
<tr><td class="h"><a name="534"></a>534</td><td></td><td></td><td></td><td></td><td class="s"> use IO::File ;</td></tr>
<tr><td class="h"><a name="535"></a>535</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="536"></a>536</td><td></td><td></td><td></td><td></td><td class="s"> my $input = new IO::File "<file1.txt.gz"</td></tr>
<tr><td class="h"><a name="537"></a>537</td><td></td><td></td><td></td><td></td><td class="s"> or die "Cannot open 'file1.txt.gz': $!\n" ;</td></tr>
<tr><td class="h"><a name="538"></a>538</td><td></td><td></td><td></td><td></td><td class="s"> my $buffer ;</td></tr>
<tr><td class="h"><a name="539"></a>539</td><td></td><td></td><td></td><td></td><td class="s"> gunzip $input => \$buffer </td></tr>
<tr><td class="h"><a name="540"></a>540</td><td></td><td></td><td></td><td></td><td class="s"> or die "gunzip failed: $GunzipError\n";</td></tr>
<tr><td class="h"><a name="541"></a>541</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="542"></a>542</td><td></td><td></td><td></td><td></td><td class="s">To uncompress all files in the directory "/my/home" that match "*.txt.gz" and store the compressed data in the same directory</td></tr>
<tr><td class="h"><a name="543"></a>543</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="544"></a>544</td><td></td><td></td><td></td><td></td><td class="s"> use strict ;</td></tr>
<tr><td class="h"><a name="545"></a>545</td><td></td><td></td><td></td><td></td><td class="s"> use warnings ;</td></tr>
<tr><td class="h"><a name="546"></a>546</td><td></td><td></td><td></td><td></td><td class="s"> use IO::Uncompress::Gunzip qw(gunzip $GunzipError) ;</td></tr>
<tr><td class="h"><a name="547"></a>547</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="548"></a>548</td><td></td><td></td><td></td><td></td><td class="s"> gunzip '</my/home/*.txt.gz>' => '</my/home/#1.txt>'</td></tr>
<tr><td class="h"><a name="549"></a>549</td><td></td><td></td><td></td><td></td><td class="s"> or die "gunzip failed: $GunzipError\n";</td></tr>
<tr><td class="h"><a name="550"></a>550</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="551"></a>551</td><td></td><td></td><td></td><td></td><td class="s">and if you want to compress each file one at a time, this will do the trick</td></tr>
<tr><td class="h"><a name="552"></a>552</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="553"></a>553</td><td></td><td></td><td></td><td></td><td class="s"> use strict ;</td></tr>
<tr><td class="h"><a name="554"></a>554</td><td></td><td></td><td></td><td></td><td class="s"> use warnings ;</td></tr>
<tr><td class="h"><a name="555"></a>555</td><td></td><td></td><td></td><td></td><td class="s"> use IO::Uncompress::Gunzip qw(gunzip $GunzipError) ;</td></tr>
<tr><td class="h"><a name="556"></a>556</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="557"></a>557</td><td></td><td></td><td></td><td></td><td class="s"> for my $input ( glob "/my/home/*.txt.gz" )</td></tr>
<tr><td class="h"><a name="558"></a>558</td><td></td><td></td><td></td><td></td><td class="s"> {</td></tr>
<tr><td class="h"><a name="559"></a>559</td><td></td><td></td><td></td><td></td><td class="s"> my $output = $input;</td></tr>
<tr><td class="h"><a name="560"></a>560</td><td></td><td></td><td></td><td></td><td class="s"> $output =~ s/.gz// ;</td></tr>
<tr><td class="h"><a name="561"></a>561</td><td></td><td></td><td></td><td></td><td class="s"> gunzip $input => $output </td></tr>
<tr><td class="h"><a name="562"></a>562</td><td></td><td></td><td></td><td></td><td class="s"> or die "Error compressing '$input': $GunzipError\n";</td></tr>
<tr><td class="h"><a name="563"></a>563</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="564"></a>564</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="565"></a>565</td><td></td><td></td><td></td><td></td><td class="s">=head1 OO Interface</td></tr>
<tr><td class="h"><a name="566"></a>566</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="567"></a>567</td><td></td><td></td><td></td><td></td><td class="s">=head2 Constructor</td></tr>
<tr><td class="h"><a name="568"></a>568</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="569"></a>569</td><td></td><td></td><td></td><td></td><td class="s">The format of the constructor for IO::Uncompress::Gunzip is shown below</td></tr>
<tr><td class="h"><a name="570"></a>570</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="571"></a>571</td><td></td><td></td><td></td><td></td><td class="s"> my $z = new IO::Uncompress::Gunzip $input [OPTS]</td></tr>
<tr><td class="h"><a name="572"></a>572</td><td></td><td></td><td></td><td></td><td class="s"> or die "IO::Uncompress::Gunzip failed: $GunzipError\n";</td></tr>
<tr><td class="h"><a name="573"></a>573</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="574"></a>574</td><td></td><td></td><td></td><td></td><td class="s">Returns an C<IO::Uncompress::Gunzip> object on success and undef on failure.</td></tr>
<tr><td class="h"><a name="575"></a>575</td><td></td><td></td><td></td><td></td><td class="s">The variable C<$GunzipError> will contain an error message on failure.</td></tr>
<tr><td class="h"><a name="576"></a>576</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="577"></a>577</td><td></td><td></td><td></td><td></td><td class="s">If you are running Perl 5.005 or better the object, C<$z>, returned from</td></tr>
<tr><td class="h"><a name="578"></a>578</td><td></td><td></td><td></td><td></td><td class="s">IO::Uncompress::Gunzip can be used exactly like an L<IO::File|IO::File> filehandle.</td></tr>
<tr><td class="h"><a name="579"></a>579</td><td></td><td></td><td></td><td></td><td class="s">This means that all normal input file operations can be carried out with</td></tr>
<tr><td class="h"><a name="580"></a>580</td><td></td><td></td><td></td><td></td><td class="s">C<$z>. For example, to read a line from a compressed file/buffer you can</td></tr>
<tr><td class="h"><a name="581"></a>581</td><td></td><td></td><td></td><td></td><td class="s">use either of these forms</td></tr>
<tr><td class="h"><a name="582"></a>582</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="583"></a>583</td><td></td><td></td><td></td><td></td><td class="s"> $line = $z->getline();</td></tr>
<tr><td class="h"><a name="584"></a>584</td><td></td><td></td><td></td><td></td><td class="s"> $line = <$z>;</td></tr>
<tr><td class="h"><a name="585"></a>585</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="586"></a>586</td><td></td><td></td><td></td><td></td><td class="s">The mandatory parameter C<$input> is used to determine the source of the</td></tr>
<tr><td class="h"><a name="587"></a>587</td><td></td><td></td><td></td><td></td><td class="s">compressed data. This parameter can take one of three forms.</td></tr>
<tr><td class="h"><a name="588"></a>588</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="589"></a>589</td><td></td><td></td><td></td><td></td><td class="s">=over 5</td></tr>
<tr><td class="h"><a name="590"></a>590</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="591"></a>591</td><td></td><td></td><td></td><td></td><td class="s">=item A filename</td></tr>
<tr><td class="h"><a name="592"></a>592</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="593"></a>593</td><td></td><td></td><td></td><td></td><td class="s">If the C<$input> parameter is a scalar, it is assumed to be a filename. This</td></tr>
<tr><td class="h"><a name="594"></a>594</td><td></td><td></td><td></td><td></td><td class="s">file will be opened for reading and the compressed data will be read from it.</td></tr>
<tr><td class="h"><a name="595"></a>595</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="596"></a>596</td><td></td><td></td><td></td><td></td><td class="s">=item A filehandle</td></tr>
<tr><td class="h"><a name="597"></a>597</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="598"></a>598</td><td></td><td></td><td></td><td></td><td class="s">If the C<$input> parameter is a filehandle, the compressed data will be</td></tr>
<tr><td class="h"><a name="599"></a>599</td><td></td><td></td><td></td><td></td><td class="s">read from it.</td></tr>
<tr><td class="h"><a name="600"></a>600</td><td></td><td></td><td></td><td></td><td class="s">The string '-' can be used as an alias for standard input.</td></tr>
<tr><td class="h"><a name="601"></a>601</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="602"></a>602</td><td></td><td></td><td></td><td></td><td class="s">=item A scalar reference </td></tr>
<tr><td class="h"><a name="603"></a>603</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="604"></a>604</td><td></td><td></td><td></td><td></td><td class="s">If C<$input> is a scalar reference, the compressed data will be read from</td></tr>
<tr><td class="h"><a name="605"></a>605</td><td></td><td></td><td></td><td></td><td class="s">C<$$output>.</td></tr>
<tr><td class="h"><a name="606"></a>606</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="607"></a>607</td><td></td><td></td><td></td><td></td><td class="s">=back</td></tr>
<tr><td class="h"><a name="608"></a>608</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="609"></a>609</td><td></td><td></td><td></td><td></td><td class="s">=head2 Constructor Options</td></tr>
<tr><td class="h"><a name="610"></a>610</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="611"></a>611</td><td></td><td></td><td></td><td></td><td class="s">The option names defined below are case insensitive and can be optionally</td></tr>
<tr><td class="h"><a name="612"></a>612</td><td></td><td></td><td></td><td></td><td class="s">prefixed by a '-'. So all of the following are valid</td></tr>
<tr><td class="h"><a name="613"></a>613</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="614"></a>614</td><td></td><td></td><td></td><td></td><td class="s"> -AutoClose</td></tr>
<tr><td class="h"><a name="615"></a>615</td><td></td><td></td><td></td><td></td><td class="s"> -autoclose</td></tr>
<tr><td class="h"><a name="616"></a>616</td><td></td><td></td><td></td><td></td><td class="s"> AUTOCLOSE</td></tr>
<tr><td class="h"><a name="617"></a>617</td><td></td><td></td><td></td><td></td><td class="s"> autoclose</td></tr>
<tr><td class="h"><a name="618"></a>618</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="619"></a>619</td><td></td><td></td><td></td><td></td><td class="s">OPTS is a combination of the following options:</td></tr>
<tr><td class="h"><a name="620"></a>620</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="621"></a>621</td><td></td><td></td><td></td><td></td><td class="s">=over 5</td></tr>
<tr><td class="h"><a name="622"></a>622</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="623"></a>623</td><td></td><td></td><td></td><td></td><td class="s">=item C<< AutoClose => 0|1 >></td></tr>
<tr><td class="h"><a name="624"></a>624</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="625"></a>625</td><td></td><td></td><td></td><td></td><td class="s">This option is only valid when the C<$input> parameter is a filehandle. If</td></tr>
<tr><td class="h"><a name="626"></a>626</td><td></td><td></td><td></td><td></td><td class="s">specified, and the value is true, it will result in the file being closed once</td></tr>
<tr><td class="h"><a name="627"></a>627</td><td></td><td></td><td></td><td></td><td class="s">either the C<close> method is called or the IO::Uncompress::Gunzip object is</td></tr>
<tr><td class="h"><a name="628"></a>628</td><td></td><td></td><td></td><td></td><td class="s">destroyed.</td></tr>
<tr><td class="h"><a name="629"></a>629</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="630"></a>630</td><td></td><td></td><td></td><td></td><td class="s">This parameter defaults to 0.</td></tr>
<tr><td class="h"><a name="631"></a>631</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="632"></a>632</td><td></td><td></td><td></td><td></td><td class="s">=item C<< MultiStream => 0|1 >></td></tr>
<tr><td class="h"><a name="633"></a>633</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="634"></a>634</td><td></td><td></td><td></td><td></td><td class="s">Allows multiple concatenated compressed streams to be treated as a single</td></tr>
<tr><td class="h"><a name="635"></a>635</td><td></td><td></td><td></td><td></td><td class="s">compressed stream. Decompression will stop once either the end of the</td></tr>
<tr><td class="h"><a name="636"></a>636</td><td></td><td></td><td></td><td></td><td class="s">file/buffer is reached, an error is encountered (premature eof, corrupt</td></tr>
<tr><td class="h"><a name="637"></a>637</td><td></td><td></td><td></td><td></td><td class="s">compressed data) or the end of a stream is not immediately followed by the</td></tr>
<tr><td class="h"><a name="638"></a>638</td><td></td><td></td><td></td><td></td><td class="s">start of another stream.</td></tr>
<tr><td class="h"><a name="639"></a>639</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="640"></a>640</td><td></td><td></td><td></td><td></td><td class="s">This parameter defaults to 0.</td></tr>
<tr><td class="h"><a name="641"></a>641</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="642"></a>642</td><td></td><td></td><td></td><td></td><td class="s">=item C<< Prime => $string >></td></tr>
<tr><td class="h"><a name="643"></a>643</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="644"></a>644</td><td></td><td></td><td></td><td></td><td class="s">This option will uncompress the contents of C<$string> before processing the</td></tr>
<tr><td class="h"><a name="645"></a>645</td><td></td><td></td><td></td><td></td><td class="s">input file/buffer.</td></tr>
<tr><td class="h"><a name="646"></a>646</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="647"></a>647</td><td></td><td></td><td></td><td></td><td class="s">This option can be useful when the compressed data is embedded in another</td></tr>
<tr><td class="h"><a name="648"></a>648</td><td></td><td></td><td></td><td></td><td class="s">file/data structure and it is not possible to work out where the compressed</td></tr>
<tr><td class="h"><a name="649"></a>649</td><td></td><td></td><td></td><td></td><td class="s">data begins without having to read the first few bytes. If this is the</td></tr>
<tr><td class="h"><a name="650"></a>650</td><td></td><td></td><td></td><td></td><td class="s">case, the uncompression can be I<primed> with these bytes using this</td></tr>
<tr><td class="h"><a name="651"></a>651</td><td></td><td></td><td></td><td></td><td class="s">option.</td></tr>
<tr><td class="h"><a name="652"></a>652</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="653"></a>653</td><td></td><td></td><td></td><td></td><td class="s">=item C<< Transparent => 0|1 >></td></tr>
<tr><td class="h"><a name="654"></a>654</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="655"></a>655</td><td></td><td></td><td></td><td></td><td class="s">If this option is set and the input file/buffer is not compressed data,</td></tr>
<tr><td class="h"><a name="656"></a>656</td><td></td><td></td><td></td><td></td><td class="s">the module will allow reading of it anyway.</td></tr>
<tr><td class="h"><a name="657"></a>657</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="658"></a>658</td><td></td><td></td><td></td><td></td><td class="s">In addition, if the input file/buffer does contain compressed data and</td></tr>
<tr><td class="h"><a name="659"></a>659</td><td></td><td></td><td></td><td></td><td class="s">there is non-compressed data immediately following it, setting this option</td></tr>
<tr><td class="h"><a name="660"></a>660</td><td></td><td></td><td></td><td></td><td class="s">will make this module treat the whole file/bufffer as a single data stream.</td></tr>
<tr><td class="h"><a name="661"></a>661</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="662"></a>662</td><td></td><td></td><td></td><td></td><td class="s">This option defaults to 1.</td></tr>
<tr><td class="h"><a name="663"></a>663</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="664"></a>664</td><td></td><td></td><td></td><td></td><td class="s">=item C<< BlockSize => $num >></td></tr>
<tr><td class="h"><a name="665"></a>665</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="666"></a>666</td><td></td><td></td><td></td><td></td><td class="s">When reading the compressed input data, IO::Uncompress::Gunzip will read it in</td></tr>
<tr><td class="h"><a name="667"></a>667</td><td></td><td></td><td></td><td></td><td class="s">blocks of C<$num> bytes.</td></tr>
<tr><td class="h"><a name="668"></a>668</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="669"></a>669</td><td></td><td></td><td></td><td></td><td class="s">This option defaults to 4096.</td></tr>
<tr><td class="h"><a name="670"></a>670</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="671"></a>671</td><td></td><td></td><td></td><td></td><td class="s">=item C<< InputLength => $size >></td></tr>
<tr><td class="h"><a name="672"></a>672</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="673"></a>673</td><td></td><td></td><td></td><td></td><td class="s">When present this option will limit the number of compressed bytes read</td></tr>
<tr><td class="h"><a name="674"></a>674</td><td></td><td></td><td></td><td></td><td class="s">from the input file/buffer to C<$size>. This option can be used in the</td></tr>
<tr><td class="h"><a name="675"></a>675</td><td></td><td></td><td></td><td></td><td class="s">situation where there is useful data directly after the compressed data</td></tr>
<tr><td class="h"><a name="676"></a>676</td><td></td><td></td><td></td><td></td><td class="s">stream and you know beforehand the exact length of the compressed data</td></tr>
<tr><td class="h"><a name="677"></a>677</td><td></td><td></td><td></td><td></td><td class="s">stream. </td></tr>
<tr><td class="h"><a name="678"></a>678</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="679"></a>679</td><td></td><td></td><td></td><td></td><td class="s">This option is mostly used when reading from a filehandle, in which case</td></tr>
<tr><td class="h"><a name="680"></a>680</td><td></td><td></td><td></td><td></td><td class="s">the file pointer will be left pointing to the first byte directly after the</td></tr>
<tr><td class="h"><a name="681"></a>681</td><td></td><td></td><td></td><td></td><td class="s">compressed data stream.</td></tr>
<tr><td class="h"><a name="682"></a>682</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="683"></a>683</td><td></td><td></td><td></td><td></td><td class="s">This option defaults to off.</td></tr>
<tr><td class="h"><a name="684"></a>684</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="685"></a>685</td><td></td><td></td><td></td><td></td><td class="s">=item C<< Append => 0|1 >></td></tr>
<tr><td class="h"><a name="686"></a>686</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="687"></a>687</td><td></td><td></td><td></td><td></td><td class="s">This option controls what the C<read> method does with uncompressed data.</td></tr>
<tr><td class="h"><a name="688"></a>688</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="689"></a>689</td><td></td><td></td><td></td><td></td><td class="s">If set to 1, all uncompressed data will be appended to the output parameter</td></tr>
<tr><td class="h"><a name="690"></a>690</td><td></td><td></td><td></td><td></td><td class="s">of the C<read> method.</td></tr>
<tr><td class="h"><a name="691"></a>691</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="692"></a>692</td><td></td><td></td><td></td><td></td><td class="s">If set to 0, the contents of the output parameter of the C<read> method</td></tr>
<tr><td class="h"><a name="693"></a>693</td><td></td><td></td><td></td><td></td><td class="s">will be overwritten by the uncompressed data.</td></tr>
<tr><td class="h"><a name="694"></a>694</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="695"></a>695</td><td></td><td></td><td></td><td></td><td class="s">Defaults to 0.</td></tr>
<tr><td class="h"><a name="696"></a>696</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="697"></a>697</td><td></td><td></td><td></td><td></td><td class="s">=item C<< Strict => 0|1 >></td></tr>
<tr><td class="h"><a name="698"></a>698</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="699"></a>699</td><td></td><td></td><td></td><td></td><td class="s">This option controls whether the extra checks defined below are used when</td></tr>
<tr><td class="h"><a name="700"></a>700</td><td></td><td></td><td></td><td></td><td class="s">carrying out the decompression. When Strict is on, the extra tests are</td></tr>
<tr><td class="h"><a name="701"></a>701</td><td></td><td></td><td></td><td></td><td class="s">carried out, when Strict is off they are not.</td></tr>
<tr><td class="h"><a name="702"></a>702</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="703"></a>703</td><td></td><td></td><td></td><td></td><td class="s">The default for this option is off.</td></tr>
<tr><td class="h"><a name="704"></a>704</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="705"></a>705</td><td></td><td></td><td></td><td></td><td class="s">=over 5</td></tr>
<tr><td class="h"><a name="706"></a>706</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="707"></a>707</td><td></td><td></td><td></td><td></td><td class="s">=item 1 </td></tr>
<tr><td class="h"><a name="708"></a>708</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="709"></a>709</td><td></td><td></td><td></td><td></td><td class="s">If the FHCRC bit is set in the gzip FLG header byte, the CRC16 bytes in the</td></tr>
<tr><td class="h"><a name="710"></a>710</td><td></td><td></td><td></td><td></td><td class="s">header must match the crc16 value of the gzip header actually read.</td></tr>
<tr><td class="h"><a name="711"></a>711</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="712"></a>712</td><td></td><td></td><td></td><td></td><td class="s">=item 2</td></tr>
<tr><td class="h"><a name="713"></a>713</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="714"></a>714</td><td></td><td></td><td></td><td></td><td class="s">If the gzip header contains a name field (FNAME) it consists solely of ISO</td></tr>
<tr><td class="h"><a name="715"></a>715</td><td></td><td></td><td></td><td></td><td class="s">8859-1 characters.</td></tr>
<tr><td class="h"><a name="716"></a>716</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="717"></a>717</td><td></td><td></td><td></td><td></td><td class="s">=item 3</td></tr>
<tr><td class="h"><a name="718"></a>718</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="719"></a>719</td><td></td><td></td><td></td><td></td><td class="s">If the gzip header contains a comment field (FCOMMENT) it consists solely</td></tr>
<tr><td class="h"><a name="720"></a>720</td><td></td><td></td><td></td><td></td><td class="s">of ISO 8859-1 characters plus line-feed.</td></tr>
<tr><td class="h"><a name="721"></a>721</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="722"></a>722</td><td></td><td></td><td></td><td></td><td class="s">=item 4</td></tr>
<tr><td class="h"><a name="723"></a>723</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="724"></a>724</td><td></td><td></td><td></td><td></td><td class="s">If the gzip FEXTRA header field is present it must conform to the sub-field</td></tr>
<tr><td class="h"><a name="725"></a>725</td><td></td><td></td><td></td><td></td><td class="s">structure as defined in RFC 1952.</td></tr>
<tr><td class="h"><a name="726"></a>726</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="727"></a>727</td><td></td><td></td><td></td><td></td><td class="s">=item 5</td></tr>
<tr><td class="h"><a name="728"></a>728</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="729"></a>729</td><td></td><td></td><td></td><td></td><td class="s">The CRC32 and ISIZE trailer fields must be present.</td></tr>
<tr><td class="h"><a name="730"></a>730</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="731"></a>731</td><td></td><td></td><td></td><td></td><td class="s">=item 6</td></tr>
<tr><td class="h"><a name="732"></a>732</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="733"></a>733</td><td></td><td></td><td></td><td></td><td class="s">The value of the CRC32 field read must match the crc32 value of the</td></tr>
<tr><td class="h"><a name="734"></a>734</td><td></td><td></td><td></td><td></td><td class="s">uncompressed data actually contained in the gzip file.</td></tr>
<tr><td class="h"><a name="735"></a>735</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="736"></a>736</td><td></td><td></td><td></td><td></td><td class="s">=item 7</td></tr>
<tr><td class="h"><a name="737"></a>737</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="738"></a>738</td><td></td><td></td><td></td><td></td><td class="s">The value of the ISIZE fields read must match the length of the</td></tr>
<tr><td class="h"><a name="739"></a>739</td><td></td><td></td><td></td><td></td><td class="s">uncompressed data actually read from the file.</td></tr>
<tr><td class="h"><a name="740"></a>740</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="741"></a>741</td><td></td><td></td><td></td><td></td><td class="s">=back</td></tr>
<tr><td class="h"><a name="742"></a>742</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="743"></a>743</td><td></td><td></td><td></td><td></td><td class="s">=item C<< ParseExtra => 0|1 >></td></tr>
<tr><td class="h"><a name="744"></a>744</td><td></td><td></td><td></td><td></td><td class="s">If the gzip FEXTRA header field is present and this option is set, it will</td></tr>
<tr><td class="h"><a name="745"></a>745</td><td></td><td></td><td></td><td></td><td class="s">force the module to check that it conforms to the sub-field structure as</td></tr>
<tr><td class="h"><a name="746"></a>746</td><td></td><td></td><td></td><td></td><td class="s">defined in RFC 1952.</td></tr>
<tr><td class="h"><a name="747"></a>747</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="748"></a>748</td><td></td><td></td><td></td><td></td><td class="s">If the C<Strict> is on it will automatically enable this option.</td></tr>
<tr><td class="h"><a name="749"></a>749</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="750"></a>750</td><td></td><td></td><td></td><td></td><td class="s">Defaults to 0.</td></tr>
<tr><td class="h"><a name="751"></a>751</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="752"></a>752</td><td></td><td></td><td></td><td></td><td class="s">=back</td></tr>
<tr><td class="h"><a name="753"></a>753</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="754"></a>754</td><td></td><td></td><td></td><td></td><td class="s">=head2 Examples</td></tr>
<tr><td class="h"><a name="755"></a>755</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="756"></a>756</td><td></td><td></td><td></td><td></td><td class="s">TODO</td></tr>
<tr><td class="h"><a name="757"></a>757</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="758"></a>758</td><td></td><td></td><td></td><td></td><td class="s">=head1 Methods </td></tr>
<tr><td class="h"><a name="759"></a>759</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="760"></a>760</td><td></td><td></td><td></td><td></td><td class="s">=head2 read</td></tr>
<tr><td class="h"><a name="761"></a>761</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="762"></a>762</td><td></td><td></td><td></td><td></td><td class="s">Usage is</td></tr>
<tr><td class="h"><a name="763"></a>763</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="764"></a>764</td><td></td><td></td><td></td><td></td><td class="s"> $status = $z->read($buffer)</td></tr>
<tr><td class="h"><a name="765"></a>765</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="766"></a>766</td><td></td><td></td><td></td><td></td><td class="s">Reads a block of compressed data (the size the the compressed block is</td></tr>
<tr><td class="h"><a name="767"></a>767</td><td></td><td></td><td></td><td></td><td class="s">determined by the C<Buffer> option in the constructor), uncompresses it and</td></tr>
<tr><td class="h"><a name="768"></a>768</td><td></td><td></td><td></td><td></td><td class="s">writes any uncompressed data into C<$buffer>. If the C<Append> parameter is</td></tr>
<tr><td class="h"><a name="769"></a>769</td><td></td><td></td><td></td><td></td><td class="s">set in the constructor, the uncompressed data will be appended to the</td></tr>
<tr><td class="h"><a name="770"></a>770</td><td></td><td></td><td></td><td></td><td class="s">C<$buffer> parameter. Otherwise C<$buffer> will be overwritten.</td></tr>
<tr><td class="h"><a name="771"></a>771</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="772"></a>772</td><td></td><td></td><td></td><td></td><td class="s">Returns the number of uncompressed bytes written to C<$buffer>, zero if eof</td></tr>
<tr><td class="h"><a name="773"></a>773</td><td></td><td></td><td></td><td></td><td class="s">or a negative number on error.</td></tr>
<tr><td class="h"><a name="774"></a>774</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="775"></a>775</td><td></td><td></td><td></td><td></td><td class="s">=head2 read</td></tr>
<tr><td class="h"><a name="776"></a>776</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="777"></a>777</td><td></td><td></td><td></td><td></td><td class="s">Usage is</td></tr>
<tr><td class="h"><a name="778"></a>778</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="779"></a>779</td><td></td><td></td><td></td><td></td><td class="s"> $status = $z->read($buffer, $length)</td></tr>
<tr><td class="h"><a name="780"></a>780</td><td></td><td></td><td></td><td></td><td class="s"> $status = $z->read($buffer, $length, $offset)</td></tr>
<tr><td class="h"><a name="781"></a>781</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="782"></a>782</td><td></td><td></td><td></td><td></td><td class="s"> $status = read($z, $buffer, $length)</td></tr>
<tr><td class="h"><a name="783"></a>783</td><td></td><td></td><td></td><td></td><td class="s"> $status = read($z, $buffer, $length, $offset)</td></tr>
<tr><td class="h"><a name="784"></a>784</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="785"></a>785</td><td></td><td></td><td></td><td></td><td class="s">Attempt to read C<$length> bytes of uncompressed data into C<$buffer>.</td></tr>
<tr><td class="h"><a name="786"></a>786</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="787"></a>787</td><td></td><td></td><td></td><td></td><td class="s">The main difference between this form of the C<read> method and the</td></tr>
<tr><td class="h"><a name="788"></a>788</td><td></td><td></td><td></td><td></td><td class="s">previous one, is that this one will attempt to return I<exactly> C<$length></td></tr>
<tr><td class="h"><a name="789"></a>789</td><td></td><td></td><td></td><td></td><td class="s">bytes. The only circumstances that this function will not is if end-of-file</td></tr>
<tr><td class="h"><a name="790"></a>790</td><td></td><td></td><td></td><td></td><td class="s">or an IO error is encountered.</td></tr>
<tr><td class="h"><a name="791"></a>791</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="792"></a>792</td><td></td><td></td><td></td><td></td><td class="s">Returns the number of uncompressed bytes written to C<$buffer>, zero if eof</td></tr>
<tr><td class="h"><a name="793"></a>793</td><td></td><td></td><td></td><td></td><td class="s">or a negative number on error.</td></tr>
<tr><td class="h"><a name="794"></a>794</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="795"></a>795</td><td></td><td></td><td></td><td></td><td class="s">=head2 getline</td></tr>
<tr><td class="h"><a name="796"></a>796</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="797"></a>797</td><td></td><td></td><td></td><td></td><td class="s">Usage is</td></tr>
<tr><td class="h"><a name="798"></a>798</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="799"></a>799</td><td></td><td></td><td></td><td></td><td class="s"> $line = $z->getline()</td></tr>
<tr><td class="h"><a name="800"></a>800</td><td></td><td></td><td></td><td></td><td class="s"> $line = <$z></td></tr>
<tr><td class="h"><a name="801"></a>801</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="802"></a>802</td><td></td><td></td><td></td><td></td><td class="s">Reads a single line. </td></tr>
<tr><td class="h"><a name="803"></a>803</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="804"></a>804</td><td></td><td></td><td></td><td></td><td class="s">This method fully supports the use of of the variable C<$/> (or</td></tr>
<tr><td class="h"><a name="805"></a>805</td><td></td><td></td><td></td><td></td><td class="s">C<$INPUT_RECORD_SEPARATOR> or C<$RS> when C<English> is in use) to</td></tr>
<tr><td class="h"><a name="806"></a>806</td><td></td><td></td><td></td><td></td><td class="s">determine what constitutes an end of line. Paragraph mode, record mode and</td></tr>
<tr><td class="h"><a name="807"></a>807</td><td></td><td></td><td></td><td></td><td class="s">file slurp mode are all supported. </td></tr>
<tr><td class="h"><a name="808"></a>808</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="809"></a>809</td><td></td><td></td><td></td><td></td><td class="s">=head2 getc</td></tr>
<tr><td class="h"><a name="810"></a>810</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="811"></a>811</td><td></td><td></td><td></td><td></td><td class="s">Usage is </td></tr>
<tr><td class="h"><a name="812"></a>812</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="813"></a>813</td><td></td><td></td><td></td><td></td><td class="s"> $char = $z->getc()</td></tr>
<tr><td class="h"><a name="814"></a>814</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="815"></a>815</td><td></td><td></td><td></td><td></td><td class="s">Read a single character.</td></tr>
<tr><td class="h"><a name="816"></a>816</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="817"></a>817</td><td></td><td></td><td></td><td></td><td class="s">=head2 ungetc</td></tr>
<tr><td class="h"><a name="818"></a>818</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="819"></a>819</td><td></td><td></td><td></td><td></td><td class="s">Usage is</td></tr>
<tr><td class="h"><a name="820"></a>820</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="821"></a>821</td><td></td><td></td><td></td><td></td><td class="s"> $char = $z->ungetc($string)</td></tr>
<tr><td class="h"><a name="822"></a>822</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="823"></a>823</td><td></td><td></td><td></td><td></td><td class="s">=head2 inflateSync</td></tr>
<tr><td class="h"><a name="824"></a>824</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="825"></a>825</td><td></td><td></td><td></td><td></td><td class="s">Usage is</td></tr>
<tr><td class="h"><a name="826"></a>826</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="827"></a>827</td><td></td><td></td><td></td><td></td><td class="s"> $status = $z->inflateSync()</td></tr>
<tr><td class="h"><a name="828"></a>828</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="829"></a>829</td><td></td><td></td><td></td><td></td><td class="s">TODO</td></tr>
<tr><td class="h"><a name="830"></a>830</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="831"></a>831</td><td></td><td></td><td></td><td></td><td class="s">=head2 getHeaderInfo</td></tr>
<tr><td class="h"><a name="832"></a>832</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="833"></a>833</td><td></td><td></td><td></td><td></td><td class="s">Usage is</td></tr>
<tr><td class="h"><a name="834"></a>834</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="835"></a>835</td><td></td><td></td><td></td><td></td><td class="s"> $hdr = $z->getHeaderInfo();</td></tr>
<tr><td class="h"><a name="836"></a>836</td><td></td><td></td><td></td><td></td><td class="s"> @hdrs = $z->getHeaderInfo();</td></tr>
<tr><td class="h"><a name="837"></a>837</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="838"></a>838</td><td></td><td></td><td></td><td></td><td class="s">This method returns either a hash reference (in scalar context) or a list</td></tr>
<tr><td class="h"><a name="839"></a>839</td><td></td><td></td><td></td><td></td><td class="s">or hash references (in array context) that contains information about each</td></tr>
<tr><td class="h"><a name="840"></a>840</td><td></td><td></td><td></td><td></td><td class="s">of the header fields in the compressed data stream(s).</td></tr>
<tr><td class="h"><a name="841"></a>841</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="842"></a>842</td><td></td><td></td><td></td><td></td><td class="s">=over 5</td></tr>
<tr><td class="h"><a name="843"></a>843</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="844"></a>844</td><td></td><td></td><td></td><td></td><td class="s">=item Name</td></tr>
<tr><td class="h"><a name="845"></a>845</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="846"></a>846</td><td></td><td></td><td></td><td></td><td class="s">The contents of the Name header field, if present. If no name is</td></tr>
<tr><td class="h"><a name="847"></a>847</td><td></td><td></td><td></td><td></td><td class="s">present, the value will be undef. Note this is different from a zero length</td></tr>
<tr><td class="h"><a name="848"></a>848</td><td></td><td></td><td></td><td></td><td class="s">name, which will return an empty string.</td></tr>
<tr><td class="h"><a name="849"></a>849</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="850"></a>850</td><td></td><td></td><td></td><td></td><td class="s">=item Comment</td></tr>
<tr><td class="h"><a name="851"></a>851</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="852"></a>852</td><td></td><td></td><td></td><td></td><td class="s">The contents of the Comment header field, if present. If no comment is</td></tr>
<tr><td class="h"><a name="853"></a>853</td><td></td><td></td><td></td><td></td><td class="s">present, the value will be undef. Note this is different from a zero length</td></tr>
<tr><td class="h"><a name="854"></a>854</td><td></td><td></td><td></td><td></td><td class="s">comment, which will return an empty string.</td></tr>
<tr><td class="h"><a name="855"></a>855</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="856"></a>856</td><td></td><td></td><td></td><td></td><td class="s">=back</td></tr>
<tr><td class="h"><a name="857"></a>857</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="858"></a>858</td><td></td><td></td><td></td><td></td><td class="s">=head2 tell</td></tr>
<tr><td class="h"><a name="859"></a>859</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="860"></a>860</td><td></td><td></td><td></td><td></td><td class="s">Usage is</td></tr>
<tr><td class="h"><a name="861"></a>861</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="862"></a>862</td><td></td><td></td><td></td><td></td><td class="s"> $z->tell()</td></tr>
<tr><td class="h"><a name="863"></a>863</td><td></td><td></td><td></td><td></td><td class="s"> tell $z</td></tr>
<tr><td class="h"><a name="864"></a>864</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="865"></a>865</td><td></td><td></td><td></td><td></td><td class="s">Returns the uncompressed file offset.</td></tr>
<tr><td class="h"><a name="866"></a>866</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="867"></a>867</td><td></td><td></td><td></td><td></td><td class="s">=head2 eof</td></tr>
<tr><td class="h"><a name="868"></a>868</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="869"></a>869</td><td></td><td></td><td></td><td></td><td class="s">Usage is</td></tr>
<tr><td class="h"><a name="870"></a>870</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="871"></a>871</td><td></td><td></td><td></td><td></td><td class="s"> $z->eof();</td></tr>
<tr><td class="h"><a name="872"></a>872</td><td></td><td></td><td></td><td></td><td class="s"> eof($z);</td></tr>
<tr><td class="h"><a name="873"></a>873</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="874"></a>874</td><td></td><td></td><td></td><td></td><td class="s">Returns true if the end of the compressed input stream has been reached.</td></tr>
<tr><td class="h"><a name="875"></a>875</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="876"></a>876</td><td></td><td></td><td></td><td></td><td class="s">=head2 seek</td></tr>
<tr><td class="h"><a name="877"></a>877</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="878"></a>878</td><td></td><td></td><td></td><td></td><td class="s"> $z->seek($position, $whence);</td></tr>
<tr><td class="h"><a name="879"></a>879</td><td></td><td></td><td></td><td></td><td class="s"> seek($z, $position, $whence);</td></tr>
<tr><td class="h"><a name="880"></a>880</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="881"></a>881</td><td></td><td></td><td></td><td></td><td class="s">Provides a sub-set of the C<seek> functionality, with the restriction</td></tr>
<tr><td class="h"><a name="882"></a>882</td><td></td><td></td><td></td><td></td><td class="s">that it is only legal to seek forward in the input file/buffer.</td></tr>
<tr><td class="h"><a name="883"></a>883</td><td></td><td></td><td></td><td></td><td class="s">It is a fatal error to attempt to seek backward.</td></tr>
<tr><td class="h"><a name="884"></a>884</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="885"></a>885</td><td></td><td></td><td></td><td></td><td class="s">The C<$whence> parameter takes one the usual values, namely SEEK_SET,</td></tr>
<tr><td class="h"><a name="886"></a>886</td><td></td><td></td><td></td><td></td><td class="s">SEEK_CUR or SEEK_END.</td></tr>
<tr><td class="h"><a name="887"></a>887</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="888"></a>888</td><td></td><td></td><td></td><td></td><td class="s">Returns 1 on success, 0 on failure.</td></tr>
<tr><td class="h"><a name="889"></a>889</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="890"></a>890</td><td></td><td></td><td></td><td></td><td class="s">=head2 binmode</td></tr>
<tr><td class="h"><a name="891"></a>891</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="892"></a>892</td><td></td><td></td><td></td><td></td><td class="s">Usage is</td></tr>
<tr><td class="h"><a name="893"></a>893</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="894"></a>894</td><td></td><td></td><td></td><td></td><td class="s"> $z->binmode</td></tr>
<tr><td class="h"><a name="895"></a>895</td><td></td><td></td><td></td><td></td><td class="s"> binmode $z ;</td></tr>
<tr><td class="h"><a name="896"></a>896</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="897"></a>897</td><td></td><td></td><td></td><td></td><td class="s">This is a noop provided for completeness.</td></tr>
<tr><td class="h"><a name="898"></a>898</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="899"></a>899</td><td></td><td></td><td></td><td></td><td class="s">=head2 opened</td></tr>
<tr><td class="h"><a name="900"></a>900</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="901"></a>901</td><td></td><td></td><td></td><td></td><td class="s"> $z->opened()</td></tr>
<tr><td class="h"><a name="902"></a>902</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="903"></a>903</td><td></td><td></td><td></td><td></td><td class="s">Returns true if the object currently refers to a opened file/buffer. </td></tr>
<tr><td class="h"><a name="904"></a>904</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="905"></a>905</td><td></td><td></td><td></td><td></td><td class="s">=head2 autoflush</td></tr>
<tr><td class="h"><a name="906"></a>906</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="907"></a>907</td><td></td><td></td><td></td><td></td><td class="s"> my $prev = $z->autoflush()</td></tr>
<tr><td class="h"><a name="908"></a>908</td><td></td><td></td><td></td><td></td><td class="s"> my $prev = $z->autoflush(EXPR)</td></tr>
<tr><td class="h"><a name="909"></a>909</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="910"></a>910</td><td></td><td></td><td></td><td></td><td class="s">If the C<$z> object is associated with a file or a filehandle, this method</td></tr>
<tr><td class="h"><a name="911"></a>911</td><td></td><td></td><td></td><td></td><td class="s">returns the current autoflush setting for the underlying filehandle. If</td></tr>
<tr><td class="h"><a name="912"></a>912</td><td></td><td></td><td></td><td></td><td class="s">C<EXPR> is present, and is non-zero, it will enable flushing after every</td></tr>
<tr><td class="h"><a name="913"></a>913</td><td></td><td></td><td></td><td></td><td class="s">write/print operation.</td></tr>
<tr><td class="h"><a name="914"></a>914</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="915"></a>915</td><td></td><td></td><td></td><td></td><td class="s">If C<$z> is associated with a buffer, this method has no effect and always</td></tr>
<tr><td class="h"><a name="916"></a>916</td><td></td><td></td><td></td><td></td><td class="s">returns C<undef>.</td></tr>
<tr><td class="h"><a name="917"></a>917</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="918"></a>918</td><td></td><td></td><td></td><td></td><td class="s">B<Note> that the special variable C<$|> B<cannot> be used to set or</td></tr>
<tr><td class="h"><a name="919"></a>919</td><td></td><td></td><td></td><td></td><td class="s">retrieve the autoflush setting.</td></tr>
<tr><td class="h"><a name="920"></a>920</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="921"></a>921</td><td></td><td></td><td></td><td></td><td class="s">=head2 input_line_number</td></tr>
<tr><td class="h"><a name="922"></a>922</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="923"></a>923</td><td></td><td></td><td></td><td></td><td class="s"> $z->input_line_number()</td></tr>
<tr><td class="h"><a name="924"></a>924</td><td></td><td></td><td></td><td></td><td class="s"> $z->input_line_number(EXPR)</td></tr>
<tr><td class="h"><a name="925"></a>925</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="926"></a>926</td><td></td><td></td><td></td><td></td><td class="s">Returns the current uncompressed line number. If C<EXPR> is present it has</td></tr>
<tr><td class="h"><a name="927"></a>927</td><td></td><td></td><td></td><td></td><td class="s">the effect of setting the line number. Note that setting the line number</td></tr>
<tr><td class="h"><a name="928"></a>928</td><td></td><td></td><td></td><td></td><td class="s">does not change the current position within the file/buffer being read.</td></tr>
<tr><td class="h"><a name="929"></a>929</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="930"></a>930</td><td></td><td></td><td></td><td></td><td class="s">The contents of C<$/> are used to to determine what constitutes a line</td></tr>
<tr><td class="h"><a name="931"></a>931</td><td></td><td></td><td></td><td></td><td class="s">terminator.</td></tr>
<tr><td class="h"><a name="932"></a>932</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="933"></a>933</td><td></td><td></td><td></td><td></td><td class="s">=head2 fileno</td></tr>
<tr><td class="h"><a name="934"></a>934</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="935"></a>935</td><td></td><td></td><td></td><td></td><td class="s"> $z->fileno()</td></tr>
<tr><td class="h"><a name="936"></a>936</td><td></td><td></td><td></td><td></td><td class="s"> fileno($z)</td></tr>
<tr><td class="h"><a name="937"></a>937</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="938"></a>938</td><td></td><td></td><td></td><td></td><td class="s">If the C<$z> object is associated with a file or a filehandle, C<fileno></td></tr>
<tr><td class="h"><a name="939"></a>939</td><td></td><td></td><td></td><td></td><td class="s">will return the underlying file descriptor. Once the C<close> method is</td></tr>
<tr><td class="h"><a name="940"></a>940</td><td></td><td></td><td></td><td></td><td class="s">called C<fileno> will return C<undef>.</td></tr>
<tr><td class="h"><a name="941"></a>941</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="942"></a>942</td><td></td><td></td><td></td><td></td><td class="s">If the C<$z> object is is associated with a buffer, this method will return</td></tr>
<tr><td class="h"><a name="943"></a>943</td><td></td><td></td><td></td><td></td><td class="s">C<undef>.</td></tr>
<tr><td class="h"><a name="944"></a>944</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="945"></a>945</td><td></td><td></td><td></td><td></td><td class="s">=head2 close</td></tr>
<tr><td class="h"><a name="946"></a>946</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="947"></a>947</td><td></td><td></td><td></td><td></td><td class="s"> $z->close() ;</td></tr>
<tr><td class="h"><a name="948"></a>948</td><td></td><td></td><td></td><td></td><td class="s"> close $z ;</td></tr>
<tr><td class="h"><a name="949"></a>949</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="950"></a>950</td><td></td><td></td><td></td><td></td><td class="s">Closes the output file/buffer. </td></tr>
<tr><td class="h"><a name="951"></a>951</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="952"></a>952</td><td></td><td></td><td></td><td></td><td class="s">For most versions of Perl this method will be automatically invoked if</td></tr>
<tr><td class="h"><a name="953"></a>953</td><td></td><td></td><td></td><td></td><td class="s">the IO::Uncompress::Gunzip object is destroyed (either explicitly or by the</td></tr>
<tr><td class="h"><a name="954"></a>954</td><td></td><td></td><td></td><td></td><td class="s">variable with the reference to the object going out of scope). The</td></tr>
<tr><td class="h"><a name="955"></a>955</td><td></td><td></td><td></td><td></td><td class="s">exceptions are Perl versions 5.005 through 5.00504 and 5.8.0. In</td></tr>
<tr><td class="h"><a name="956"></a>956</td><td></td><td></td><td></td><td></td><td class="s">these cases, the C<close> method will be called automatically, but</td></tr>
<tr><td class="h"><a name="957"></a>957</td><td></td><td></td><td></td><td></td><td class="s">not until global destruction of all live objects when the program is</td></tr>
<tr><td class="h"><a name="958"></a>958</td><td></td><td></td><td></td><td></td><td class="s">terminating.</td></tr>
<tr><td class="h"><a name="959"></a>959</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="960"></a>960</td><td></td><td></td><td></td><td></td><td class="s">Therefore, if you want your scripts to be able to run on all versions</td></tr>
<tr><td class="h"><a name="961"></a>961</td><td></td><td></td><td></td><td></td><td class="s">of Perl, you should call C<close> explicitly and not rely on automatic</td></tr>
<tr><td class="h"><a name="962"></a>962</td><td></td><td></td><td></td><td></td><td class="s">closing.</td></tr>
<tr><td class="h"><a name="963"></a>963</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="964"></a>964</td><td></td><td></td><td></td><td></td><td class="s">Returns true on success, otherwise 0.</td></tr>
<tr><td class="h"><a name="965"></a>965</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="966"></a>966</td><td></td><td></td><td></td><td></td><td class="s">If the C<AutoClose> option has been enabled when the IO::Uncompress::Gunzip</td></tr>
<tr><td class="h"><a name="967"></a>967</td><td></td><td></td><td></td><td></td><td class="s">object was created, and the object is associated with a file, the</td></tr>
<tr><td class="h"><a name="968"></a>968</td><td></td><td></td><td></td><td></td><td class="s">underlying file will also be closed.</td></tr>
<tr><td class="h"><a name="969"></a>969</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="970"></a>970</td><td></td><td></td><td></td><td></td><td class="s">=head2 nextStream</td></tr>
<tr><td class="h"><a name="971"></a>971</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="972"></a>972</td><td></td><td></td><td></td><td></td><td class="s">Usage is</td></tr>
<tr><td class="h"><a name="973"></a>973</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="974"></a>974</td><td></td><td></td><td></td><td></td><td class="s"> my $status = $z->nextStream();</td></tr>
<tr><td class="h"><a name="975"></a>975</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="976"></a>976</td><td></td><td></td><td></td><td></td><td class="s">Skips to the next compressed data stream in the input file/buffer. If a new</td></tr>
<tr><td class="h"><a name="977"></a>977</td><td></td><td></td><td></td><td></td><td class="s">compressed data stream is found, the eof marker will be cleared and C<$.></td></tr>
<tr><td class="h"><a name="978"></a>978</td><td></td><td></td><td></td><td></td><td class="s">will be reset to 0.</td></tr>
<tr><td class="h"><a name="979"></a>979</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="980"></a>980</td><td></td><td></td><td></td><td></td><td class="s">Returns 1 if a new stream was found, 0 if none was found, and -1 if an</td></tr>
<tr><td class="h"><a name="981"></a>981</td><td></td><td></td><td></td><td></td><td class="s">error was encountered.</td></tr>
<tr><td class="h"><a name="982"></a>982</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="983"></a>983</td><td></td><td></td><td></td><td></td><td class="s">=head2 trailingData</td></tr>
<tr><td class="h"><a name="984"></a>984</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="985"></a>985</td><td></td><td></td><td></td><td></td><td class="s">Usage is</td></tr>
<tr><td class="h"><a name="986"></a>986</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="987"></a>987</td><td></td><td></td><td></td><td></td><td class="s"> my $data = $z->trailingData();</td></tr>
<tr><td class="h"><a name="988"></a>988</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="989"></a>989</td><td></td><td></td><td></td><td></td><td class="s">Returns the data, if any, that is present immediately after the compressed</td></tr>
<tr><td class="h"><a name="990"></a>990</td><td></td><td></td><td></td><td></td><td class="s">data stream once uncompression is complete. It only makes sense to call</td></tr>
<tr><td class="h"><a name="991"></a>991</td><td></td><td></td><td></td><td></td><td class="s">this method once the end of the compressed data stream has been</td></tr>
<tr><td class="h"><a name="992"></a>992</td><td></td><td></td><td></td><td></td><td class="s">encountered.</td></tr>
<tr><td class="h"><a name="993"></a>993</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="994"></a>994</td><td></td><td></td><td></td><td></td><td class="s">This option can be used when there is useful information immediately</td></tr>
<tr><td class="h"><a name="995"></a>995</td><td></td><td></td><td></td><td></td><td class="s">following the compressed data stream, and you don't know the length of the</td></tr>
<tr><td class="h"><a name="996"></a>996</td><td></td><td></td><td></td><td></td><td class="s">compressed data stream.</td></tr>
<tr><td class="h"><a name="997"></a>997</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="998"></a>998</td><td></td><td></td><td></td><td></td><td class="s">If the input is a buffer, C<trailingData> will return everything from the</td></tr>
<tr><td class="h"><a name="999"></a>999</td><td></td><td></td><td></td><td></td><td class="s">end of the compressed data stream to the end of the buffer.</td></tr>
<tr><td class="h"><a name="1000"></a>1000</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1001"></a>1001</td><td></td><td></td><td></td><td></td><td class="s">If the input is a filehandle, C<trailingData> will return the data that is</td></tr>
<tr><td class="h"><a name="1002"></a>1002</td><td></td><td></td><td></td><td></td><td class="s">left in the filehandle input buffer once the end of the compressed data</td></tr>
<tr><td class="h"><a name="1003"></a>1003</td><td></td><td></td><td></td><td></td><td class="s">stream has been reached. You can then use the filehandle to read the rest</td></tr>
<tr><td class="h"><a name="1004"></a>1004</td><td></td><td></td><td></td><td></td><td class="s">of the input file. </td></tr>
<tr><td class="h"><a name="1005"></a>1005</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1006"></a>1006</td><td></td><td></td><td></td><td></td><td class="s">Don't bother using C<trailingData> if the input is a filename.</td></tr>
<tr><td class="h"><a name="1007"></a>1007</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1008"></a>1008</td><td></td><td></td><td></td><td></td><td class="s">If you know the length of the compressed data stream before you start</td></tr>
<tr><td class="h"><a name="1009"></a>1009</td><td></td><td></td><td></td><td></td><td class="s">uncompressing, you can avoid having to use C<trailingData> by setting the</td></tr>
<tr><td class="h"><a name="1010"></a>1010</td><td></td><td></td><td></td><td></td><td class="s">C<InputLength> option in the constructor.</td></tr>
<tr><td class="h"><a name="1011"></a>1011</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1012"></a>1012</td><td></td><td></td><td></td><td></td><td class="s">=head1 Importing </td></tr>
<tr><td class="h"><a name="1013"></a>1013</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1014"></a>1014</td><td></td><td></td><td></td><td></td><td class="s">No symbolic constants are required by this IO::Uncompress::Gunzip at present. </td></tr>
<tr><td class="h"><a name="1015"></a>1015</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1016"></a>1016</td><td></td><td></td><td></td><td></td><td class="s">=over 5</td></tr>
<tr><td class="h"><a name="1017"></a>1017</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1018"></a>1018</td><td></td><td></td><td></td><td></td><td class="s">=item :all</td></tr>
<tr><td class="h"><a name="1019"></a>1019</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1020"></a>1020</td><td></td><td></td><td></td><td></td><td class="s">Imports C<gunzip> and C<$GunzipError>.</td></tr>
<tr><td class="h"><a name="1021"></a>1021</td><td></td><td></td><td></td><td></td><td class="s">Same as doing this</td></tr>
<tr><td class="h"><a name="1022"></a>1022</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1023"></a>1023</td><td></td><td></td><td></td><td></td><td class="s"> use IO::Uncompress::Gunzip qw(gunzip $GunzipError) ;</td></tr>
<tr><td class="h"><a name="1024"></a>1024</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1025"></a>1025</td><td></td><td></td><td></td><td></td><td class="s">=back</td></tr>
<tr><td class="h"><a name="1026"></a>1026</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1027"></a>1027</td><td></td><td></td><td></td><td></td><td class="s">=head1 EXAMPLES</td></tr>
<tr><td class="h"><a name="1028"></a>1028</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1029"></a>1029</td><td></td><td></td><td></td><td></td><td class="s">=head2 Working with Net::FTP</td></tr>
<tr><td class="h"><a name="1030"></a>1030</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1031"></a>1031</td><td></td><td></td><td></td><td></td><td class="s">See L<IO::Uncompress::Gunzip::FAQ|IO::Uncompress::Gunzip::FAQ/"Compressed files and Net::FTP"></td></tr>
<tr><td class="h"><a name="1032"></a>1032</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1033"></a>1033</td><td></td><td></td><td></td><td></td><td class="s">=head1 SEE ALSO</td></tr>
<tr><td class="h"><a name="1034"></a>1034</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1035"></a>1035</td><td></td><td></td><td></td><td></td><td class="s">L<Compress::Zlib>, L<IO::Compress::Gzip>, L<IO::Compress::Deflate>, L<IO::Uncompress::Inflate>, L<IO::Compress::RawDeflate>, L<IO::Uncompress::RawInflate>, L<IO::Compress::Bzip2>, L<IO::Uncompress::Bunzip2>, L<IO::Compress::Lzop>, L<IO::Uncompress::UnLzop>, L<IO::Compress::Lzf>, L<IO::Uncompress::UnLzf>, L<IO::Uncompress::AnyInflate>, L<IO::Uncompress::AnyUncompress></td></tr>
<tr><td class="h"><a name="1036"></a>1036</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1037"></a>1037</td><td></td><td></td><td></td><td></td><td class="s">L<Compress::Zlib::FAQ|Compress::Zlib::FAQ></td></tr>
<tr><td class="h"><a name="1038"></a>1038</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1039"></a>1039</td><td></td><td></td><td></td><td></td><td class="s">L<File::GlobMapper|File::GlobMapper>, L<Archive::Zip|Archive::Zip>,</td></tr>
<tr><td class="h"><a name="1040"></a>1040</td><td></td><td></td><td></td><td></td><td class="s">L<Archive::Tar|Archive::Tar>,</td></tr>
<tr><td class="h"><a name="1041"></a>1041</td><td></td><td></td><td></td><td></td><td class="s">L<IO::Zlib|IO::Zlib></td></tr>
<tr><td class="h"><a name="1042"></a>1042</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1043"></a>1043</td><td></td><td></td><td></td><td></td><td class="s">For RFC 1950, 1951 and 1952 see </td></tr>
<tr><td class="h"><a name="1044"></a>1044</td><td></td><td></td><td></td><td></td><td class="s">F<http://www.faqs.org/rfcs/rfc1950.html>,</td></tr>
<tr><td class="h"><a name="1045"></a>1045</td><td></td><td></td><td></td><td></td><td class="s">F<http://www.faqs.org/rfcs/rfc1951.html> and</td></tr>
<tr><td class="h"><a name="1046"></a>1046</td><td></td><td></td><td></td><td></td><td class="s">F<http://www.faqs.org/rfcs/rfc1952.html></td></tr>
<tr><td class="h"><a name="1047"></a>1047</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1048"></a>1048</td><td></td><td></td><td></td><td></td><td class="s">The I<zlib> compression library was written by Jean-loup Gailly</td></tr>
<tr><td class="h"><a name="1049"></a>1049</td><td></td><td></td><td></td><td></td><td class="s">F<gzip@prep.ai.mit.edu> and Mark Adler F<madler@alumni.caltech.edu>.</td></tr>
<tr><td class="h"><a name="1050"></a>1050</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1051"></a>1051</td><td></td><td></td><td></td><td></td><td class="s">The primary site for the I<zlib> compression library is</td></tr>
<tr><td class="h"><a name="1052"></a>1052</td><td></td><td></td><td></td><td></td><td class="s">F<http://www.zlib.org>.</td></tr>
<tr><td class="h"><a name="1053"></a>1053</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1054"></a>1054</td><td></td><td></td><td></td><td></td><td class="s">The primary site for gzip is F<http://www.gzip.org>.</td></tr>
<tr><td class="h"><a name="1055"></a>1055</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1056"></a>1056</td><td></td><td></td><td></td><td></td><td class="s">=head1 AUTHOR</td></tr>
<tr><td class="h"><a name="1057"></a>1057</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1058"></a>1058</td><td></td><td></td><td></td><td></td><td class="s">This module was written by Paul Marquess, F<pmqs@cpan.org>. </td></tr>
<tr><td class="h"><a name="1059"></a>1059</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1060"></a>1060</td><td></td><td></td><td></td><td></td><td class="s">=head1 MODIFICATION HISTORY</td></tr>
<tr><td class="h"><a name="1061"></a>1061</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1062"></a>1062</td><td></td><td></td><td></td><td></td><td class="s">See the Changes file.</td></tr>
<tr><td class="h"><a name="1063"></a>1063</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1064"></a>1064</td><td></td><td></td><td></td><td></td><td class="s">=head1 COPYRIGHT AND LICENSE</td></tr>
<tr><td class="h"><a name="1065"></a>1065</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1066"></a>1066</td><td></td><td></td><td></td><td></td><td class="s">Copyright (c) 2005-2009 Paul Marquess. All rights reserved.</td></tr>
<tr><td class="h"><a name="1067"></a>1067</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1068"></a>1068</td><td></td><td></td><td></td><td></td><td class="s">This program is free software; you can redistribute it and/or</td></tr>
<tr><td class="h"><a name="1069"></a>1069</td><td></td><td></td><td></td><td></td><td class="s">modify it under the same terms as Perl itself.</td></tr>
<tr><td class="h"><a name="1070"></a>1070</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
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