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Timofey Solomko
371 lines
17 KiB
HTML
371 lines
17 KiB
HTML
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<title>Deflate Class Reference</title>
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<a title="Deflate Class Reference"></a>
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SWCompression Docs
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(100% documented)
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Deflate Class Reference
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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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<article class="main-content">
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<section class="section">
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<div class="section-content">
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<h1>Deflate</h1>
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<div class="declaration">
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<div class="language">
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<pre class="highlight"><code><span class="kd">public</span> <span class="kd">class</span> <span class="kt">Deflate</span><span class="p">:</span> <span class="kt"><a href="../Protocols/DecompressionAlgorithm.html">DecompressionAlgorithm</a></span></code></pre>
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</div>
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</div>
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<p>Provides functions for compression and decompression for Deflate algorithm.</p>
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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:13SWCompression7DeflateC10decompress10Foundation4DataVAG4data_tKFZ"></a>
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<a name="//apple_ref/swift/Method/decompress(data:)" class="dashAnchor"></a>
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<a class="token" href="#/s:13SWCompression7DeflateC10decompress10Foundation4DataVAG4data_tKFZ">decompress(data:)</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>Decompresses <code>data</code> using Deflate algortihm.</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>
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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> if unexpected byte (bit) sequence was encountered in <code>data</code>.
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It may indicate that either data is damaged or it might not be 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"><code><span class="kd">public</span> <span class="kd">static</span> <span class="kd">func</span> <span class="nf">decompress</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="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>data</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 compressed with Deflate.</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>Decompressed 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/4.0.1/Sources/Deflate/Deflate.swift#L23-L27">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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</ul>
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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:13SWCompression7DeflateC8compress10Foundation4DataVAG4data_tFZ"></a>
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<a name="//apple_ref/swift/Method/compress(data:)" class="dashAnchor"></a>
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<a class="token" href="#/s:13SWCompression7DeflateC8compress10Foundation4DataVAG4data_tFZ">compress(data:)</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>Compresses <code>data</code> with Deflate algortihm.</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>Currently, SWCompression creates only one block for all data
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and the block can either be uncompressed or compressed with static Huffman encoding.
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Choice of one block type or the other depends on bytes’ statistics of data.
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However, if data size is greater than 65535 (the maximum value stored in 2 bytes),
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then static Huffman block will be created.</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"><code><span class="kd">public</span> <span class="kd">static</span> <span class="kd">func</span> <span class="nf">compress</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="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>data</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 to compress.</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 class="slightly-smaller">
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<a href="https://github.com/tsolomko/SWCompression/tree/4.0.1/Sources/Deflate/Deflate+Compress.swift#L21-L44">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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</ul>
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</div>
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</div>
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</section>
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</article>
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</div>
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<section class="footer">
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<p>© 2017 Timofey Solomko</p>
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<p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.9.0</a>, a <a class="link" href="http://realm.io" target="_blank" rel="external">Realm</a> project.</p>
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