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601 lines
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<title>GzipArchive Class Reference</title>
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SWCompression 4.9.1 Docs
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(100% documented)
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GzipArchive Class Reference
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<a class="nav-group-task-link" href="../Structs/GzipHeader/ExtraField.html">– ExtraField</a>
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<a class="nav-group-task-link" href="../Structs/ZlibHeader/CompressionLevel.html">– CompressionLevel</a>
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<a class="nav-group-task-link" href="../Structs/SevenZipEntry.html">SevenZipEntry</a>
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<a class="nav-group-task-link" href="../Classes/TarContainer/Format.html">– Format</a>
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<a class="nav-group-task-link" href="../Structs/ZipEntry.html">ZipEntry</a>
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<a class="nav-group-task-link" href="../Structs/ZipEntryInfo.html">ZipEntryInfo</a>
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<a class="nav-group-task-link" href="../Protocols/ZipExtraField.html">ZipExtraField</a>
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<a class="nav-group-task-link" href="../Enums/ZipExtraFieldLocation.html">ZipExtraFieldLocation</a>
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<a class="nav-group-task-link" href="../Enums/GzipError.html">GzipError</a>
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<a class="nav-group-task-link" href="../Enums/SevenZipError.html">SevenZipError</a>
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<a class="nav-group-task-link" href="../Enums/TarCreateError.html">TarCreateError</a>
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<a class="nav-group-task-link" href="../Enums/XZError.html">XZError</a>
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<a class="nav-group-task-link" href="../Enums/ZipError.html">ZipError</a>
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<a class="nav-group-task-link" href="../Enums/ZlibError.html">ZlibError</a>
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<a class="nav-group-task-link" href="../Protocols/Archive.html">Archive</a>
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<a class="nav-group-task-link" href="../Protocols/Container.html">Container</a>
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<a class="nav-group-task-link" href="../Protocols/ContainerEntry.html">ContainerEntry</a>
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<a class="nav-group-task-link" href="../Protocols/ContainerEntryInfo.html">ContainerEntryInfo</a>
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<a class="nav-group-task-link" href="../Protocols/CompressionAlgorithm.html">CompressionAlgorithm</a>
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<a class="nav-group-task-link" href="../Protocols/DecompressionAlgorithm.html">DecompressionAlgorithm</a>
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<a class="nav-group-name-link" href="../Common%20Auxiliary%20Types.html">Common Auxiliary Types</a>
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<a class="nav-group-task-link" href="../Structs/DosAttributes.html">DosAttributes</a>
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<a class="nav-group-task-link" href="../Enums/CompressionMethod.html">CompressionMethod</a>
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</nav>
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<article class="main-content">
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<section class="section">
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<div class="section-content top-matter">
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<h1>GzipArchive</h1>
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<div class="declaration">
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<div class="language">
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<pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">class</span> <span class="kt">GzipArchive</span> <span class="p">:</span> <span class="kt"><a href="../Protocols/Archive.html">Archive</a></span></code></pre>
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</div>
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</div>
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<p>Provides unarchive and archive functions for GZip archives.</p>
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<div class="slightly-smaller">
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<a href="https://github.com/tsolomko/SWCompression/tree/4.9.1/Sources/GZip/GzipArchive.swift#L10-L243">Show on GitHub</a>
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</div>
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</div>
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</section>
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<section class="section">
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<div class="section-content">
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<div class="task-group">
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<ul class="item-container">
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<li class="item">
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<div>
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<code>
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<a name="/s:13SWCompression11GzipArchiveC6MemberV"></a>
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<a name="//apple_ref/swift/Struct/Member" class="dashAnchor"></a>
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<a class="token" href="#/s:13SWCompression11GzipArchiveC6MemberV">Member</a>
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</code>
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</div>
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<div class="height-container">
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<div class="pointer-container"></div>
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<section class="section">
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<div class="pointer"></div>
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<div class="abstract">
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<p>Represents the member of a multi-member GZip archive.</p>
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<a href="../Classes/GzipArchive/Member.html" class="slightly-smaller">See more</a>
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</div>
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<div class="declaration">
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<h4>Declaration</h4>
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<div class="language">
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<p class="aside-title">Swift</p>
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<pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">struct</span> <span class="kt">Member</span></code></pre>
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</div>
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</div>
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<div class="slightly-smaller">
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<a href="https://github.com/tsolomko/SWCompression/tree/4.9.1/Sources/GZip/GzipArchive.swift#L13-L23">Show on GitHub</a>
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</div>
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</section>
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</div>
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</li>
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<li class="item">
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<div>
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<code>
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<a name="/s:13SWCompression11GzipArchiveC9unarchive7archive10Foundation4DataVAH_tKFZ"></a>
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<a name="//apple_ref/swift/Method/unarchive(archive:)" class="dashAnchor"></a>
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<a class="token" href="#/s:13SWCompression11GzipArchiveC9unarchive7archive10Foundation4DataVAH_tKFZ">unarchive(archive:<wbr>)</a>
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</code>
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</div>
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<div class="height-container">
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<div class="pointer-container"></div>
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<section class="section">
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<div class="pointer"></div>
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<div class="abstract">
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<p>Unarchives GZip archive.</p>
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<div class="aside aside-note">
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<p class="aside-title">Note</p>
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<p>This function is specification compliant.</p>
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</div><div class="aside aside-throws">
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<p class="aside-title">Throws</p>
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<p><code><a href="../Enums/DeflateError.html">DeflateError</a></code> or <code><a href="../Enums/GzipError.html">GzipError</a></code> depending on the type of the problem.
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It may indicate that either archive is damaged or it might not be archived with GZip
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or compressed with Deflate at all.</p>
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</div>
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</div>
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<div class="declaration">
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<h4>Declaration</h4>
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<div class="language">
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<p class="aside-title">Swift</p>
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<pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">static</span> <span class="kd">func</span> <span class="nf">unarchive</span><span class="p">(</span><span class="n">archive</span> <span class="nv">data</span><span class="p">:</span> <span class="kt">Data</span><span class="p">)</span> <span class="k">throws</span> <span class="o">-></span> <span class="kt">Data</span></code></pre>
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</div>
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</div>
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<div>
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<h4>Parameters</h4>
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<table class="graybox">
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<tbody>
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<tr>
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<td>
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<code>
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<em>archive</em>
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</code>
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</td>
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<td>
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<div>
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<p>Data archived with GZip.</p>
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</div>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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<div>
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<h4>Return Value</h4>
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<p>Unarchived data.</p>
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</div>
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<div class="slightly-smaller">
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<a href="https://github.com/tsolomko/SWCompression/tree/4.9.1/Sources/GZip/GzipArchive.swift#L38-L48">Show on GitHub</a>
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||
</div>
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||
</section>
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||
</div>
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</li>
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<li class="item">
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||
<div>
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<code>
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<a name="/s:13SWCompression11GzipArchiveC14multiUnarchive7archiveSayAC6MemberVG10Foundation4DataV_tKFZ"></a>
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<a name="//apple_ref/swift/Method/multiUnarchive(archive:)" class="dashAnchor"></a>
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<a class="token" href="#/s:13SWCompression11GzipArchiveC14multiUnarchive7archiveSayAC6MemberVG10Foundation4DataV_tKFZ">multiUnarchive(archive:<wbr>)</a>
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</code>
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</div>
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<div class="height-container">
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<div class="pointer-container"></div>
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<section class="section">
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<div class="pointer"></div>
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<div class="abstract">
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<p>Unarchives multi-member GZip archive.
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Multi-member GZip archives are essentially several GZip archives following each other in a single file.</p>
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<div class="aside aside-throws">
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<p class="aside-title">Throws</p>
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<p><code><a href="../Enums/DeflateError.html">DeflateError</a></code> or <code><a href="../Enums/GzipError.html">GzipError</a></code> depending on the type of the problem.
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It may indicate that one of the members of archive is damaged or
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it might not be archived with GZip or compressed with Deflate at all.</p>
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</div>
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</div>
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<div class="declaration">
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<h4>Declaration</h4>
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<div class="language">
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<p class="aside-title">Swift</p>
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<pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">static</span> <span class="kd">func</span> <span class="nf">multiUnarchive</span><span class="p">(</span><span class="n">archive</span> <span class="nv">data</span><span class="p">:</span> <span class="kt">Data</span><span class="p">)</span> <span class="k">throws</span> <span class="o">-></span> <span class="p">[</span><span class="kt"><a href="../Classes/GzipArchive/Member.html">Member</a></span><span class="p">]</span></code></pre>
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</div>
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</div>
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<div>
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<h4>Parameters</h4>
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<table class="graybox">
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<tbody>
|
||
<tr>
|
||
<td>
|
||
<code>
|
||
<em>archive</em>
|
||
</code>
|
||
</td>
|
||
<td>
|
||
<div>
|
||
<p>GZip archive with one or more members.</p>
|
||
</div>
|
||
</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</div>
|
||
<div>
|
||
<h4>Return Value</h4>
|
||
<p>Unarchived data.</p>
|
||
</div>
|
||
<div class="slightly-smaller">
|
||
<a href="https://github.com/tsolomko/SWCompression/tree/4.9.1/Sources/GZip/GzipArchive.swift#L62-L77">Show on GitHub</a>
|
||
</div>
|
||
</section>
|
||
</div>
|
||
</li>
|
||
<li class="item">
|
||
<div>
|
||
<code>
|
||
<a name="/s:13SWCompression11GzipArchiveC7archive4data7comment8fileName14writeHeaderCRC10isTextFile6osType16modificationTime11extraFields10Foundation4DataVAO_SSSgAPS2bAA0n6SystemP0OSgAM4DateVSgSayAA0bJ0V10ExtraFieldVGtKFZ"></a>
|
||
<a name="//apple_ref/swift/Method/archive(data:comment:fileName:writeHeaderCRC:isTextFile:osType:modificationTime:extraFields:)" class="dashAnchor"></a>
|
||
<a class="token" href="#/s:13SWCompression11GzipArchiveC7archive4data7comment8fileName14writeHeaderCRC10isTextFile6osType16modificationTime11extraFields10Foundation4DataVAO_SSSgAPS2bAA0n6SystemP0OSgAM4DateVSgSayAA0bJ0V10ExtraFieldVGtKFZ">archive(data:<wbr>comment:<wbr>fileName:<wbr>writeHeaderCRC:<wbr>isTextFile:<wbr>osType:<wbr>modificationTime:<wbr>extraFields:<wbr>)</a>
|
||
</code>
|
||
</div>
|
||
<div class="height-container">
|
||
<div class="pointer-container"></div>
|
||
<section class="section">
|
||
<div class="pointer"></div>
|
||
<div class="abstract">
|
||
<p>Archives <code>data</code> into GZip archive, using various specified options.
|
||
Data will be also compressed with Deflate algorithm.
|
||
It will be also specified in archive’s header that the compressor used the slowest Deflate algorithm.</p>
|
||
<div class="aside aside-note">
|
||
<p class="aside-title">Note</p>
|
||
<p>This function is specification compliant.</p>
|
||
|
||
</div><div class="aside aside-throws">
|
||
<p class="aside-title">Throws</p>
|
||
<p><code><a href="../Enums/GzipError.html#/s:13SWCompression9GzipErrorO21cannotEncodeISOLatin1yA2CmF">GzipError.cannotEncodeISOLatin1</a></code> if a file name or a comment cannot be encoded with ISO-Latin-1 encoding
|
||
or if the total sum of the binary content length of all extra fields plus 4 for each field exceeds <code>UInt16.max</code>.</p>
|
||
|
||
</div>
|
||
|
||
</div>
|
||
<div class="declaration">
|
||
<h4>Declaration</h4>
|
||
<div class="language">
|
||
<p class="aside-title">Swift</p>
|
||
<pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">static</span> <span class="kd">func</span> <span class="nf">archive</span><span class="p">(</span><span class="nv">data</span><span class="p">:</span> <span class="kt">Data</span><span class="p">,</span> <span class="nv">comment</span><span class="p">:</span> <span class="kt">String</span><span class="p">?</span> <span class="o">=</span> <span class="kc">nil</span><span class="p">,</span> <span class="nv">fileName</span><span class="p">:</span> <span class="kt">String</span><span class="p">?</span> <span class="o">=</span> <span class="kc">nil</span><span class="p">,</span>
|
||
<span class="nv">writeHeaderCRC</span><span class="p">:</span> <span class="kt">Bool</span> <span class="o">=</span> <span class="kc">false</span><span class="p">,</span> <span class="nv">isTextFile</span><span class="p">:</span> <span class="kt">Bool</span> <span class="o">=</span> <span class="kc">false</span><span class="p">,</span>
|
||
<span class="nv">osType</span><span class="p">:</span> <span class="kt"><a href="../Enums/FileSystemType.html">FileSystemType</a></span><span class="p">?</span> <span class="o">=</span> <span class="kc">nil</span><span class="p">,</span> <span class="nv">modificationTime</span><span class="p">:</span> <span class="kt">Date</span><span class="p">?</span> <span class="o">=</span> <span class="kc">nil</span><span class="p">,</span>
|
||
<span class="nv">extraFields</span><span class="p">:</span> <span class="p">[</span><span class="kt"><a href="../Structs/GzipHeader.html">GzipHeader</a></span><span class="o">.</span><span class="kt">ExtraField</span><span class="p">]</span> <span class="o">=</span> <span class="p">[])</span> <span class="k">throws</span> <span class="o">-></span> <span class="kt">Data</span></code></pre>
|
||
|
||
</div>
|
||
</div>
|
||
<div>
|
||
<h4>Parameters</h4>
|
||
<table class="graybox">
|
||
<tbody>
|
||
<tr>
|
||
<td>
|
||
<code>
|
||
<em>data</em>
|
||
</code>
|
||
</td>
|
||
<td>
|
||
<div>
|
||
<p>Data to compress and archive.</p>
|
||
</div>
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td>
|
||
<code>
|
||
<em>comment</em>
|
||
</code>
|
||
</td>
|
||
<td>
|
||
<div>
|
||
<p>Additional comment, which will be stored as a separate field in archive.</p>
|
||
</div>
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td>
|
||
<code>
|
||
<em>fileName</em>
|
||
</code>
|
||
</td>
|
||
<td>
|
||
<div>
|
||
<p>Name of the file which will be archived.</p>
|
||
</div>
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td>
|
||
<code>
|
||
<em>writeHeaderCRC</em>
|
||
</code>
|
||
</td>
|
||
<td>
|
||
<div>
|
||
<p>Set to true, if you want to store consistency check for archive’s header.</p>
|
||
</div>
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td>
|
||
<code>
|
||
<em>isTextFile</em>
|
||
</code>
|
||
</td>
|
||
<td>
|
||
<div>
|
||
<p>Set to true, if the file which will be archived is text file or ASCII-file.</p>
|
||
</div>
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td>
|
||
<code>
|
||
<em>osType</em>
|
||
</code>
|
||
</td>
|
||
<td>
|
||
<div>
|
||
<p>Type of the system on which this archive will be created.</p>
|
||
</div>
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td>
|
||
<code>
|
||
<em>modificationTime</em>
|
||
</code>
|
||
</td>
|
||
<td>
|
||
<div>
|
||
<p>Last time the file was modified.</p>
|
||
</div>
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td>
|
||
<code>
|
||
<em>extraFields</em>
|
||
</code>
|
||
</td>
|
||
<td>
|
||
<div>
|
||
<p>Any extra fields. Note that no extra field is allowed to have second byte of the extra
|
||
field (subfield) ID equal to zero. In addition, the length of a field’s binary content must be less than
|
||
<code>UInt16.max</code>, while the total sum of the binary content length of all extra fields plus 4 for each field must also
|
||
not exceed <code>UInt16.max</code>. See GZip format specification for more details.</p>
|
||
</div>
|
||
</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</div>
|
||
<div>
|
||
<h4>Return Value</h4>
|
||
<p>Resulting archive’s data.</p>
|
||
</div>
|
||
<div class="slightly-smaller">
|
||
<a href="https://github.com/tsolomko/SWCompression/tree/4.9.1/Sources/GZip/GzipArchive.swift#L126-L241">Show on GitHub</a>
|
||
</div>
|
||
</section>
|
||
</div>
|
||
</li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</section>
|
||
|
||
</article>
|
||
</div>
|
||
<section class="footer">
|
||
<p>© 2026 Timofey Solomko</p>
|
||
<p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external noopener">jazzy ♪♫ v0.15.4</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external noopener">Realm</a> project.</p>
|
||
</section>
|
||
</body>
|
||
</html>
|