224 lines
12 KiB
HTML
224 lines
12 KiB
HTML
<!DOCTYPE html>
|
||
<html lang="en">
|
||
<head>
|
||
<meta charset="utf-8">
|
||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||
<meta name="generator" content="rustdoc">
|
||
<meta name="description" content="API documentation for the Rust `deflate` crate.">
|
||
<meta name="keywords" content="rust, rustlang, rust-lang, deflate">
|
||
|
||
<title>deflate - Rust</title>
|
||
|
||
<link rel="stylesheet" type="text/css" href="../normalize.css">
|
||
<link rel="stylesheet" type="text/css" href="../rustdoc.css">
|
||
<link rel="stylesheet" type="text/css" href="../main.css">
|
||
|
||
|
||
|
||
|
||
</head>
|
||
<body class="rustdoc mod">
|
||
<!--[if lte IE 8]>
|
||
<div class="warning">
|
||
This old browser is unsupported and will most likely display funky
|
||
things.
|
||
</div>
|
||
<![endif]-->
|
||
|
||
|
||
|
||
<nav class="sidebar">
|
||
|
||
<p class='location'>Crate deflate</p><div class="block items"><ul><li><a href="#modules">Modules</a></li><li><a href="#structs">Structs</a></li><li><a href="#enums">Enums</a></li><li><a href="#functions">Functions</a></li></ul></div><p class='location'></p><script>window.sidebarCurrent = {name: 'deflate', ty: 'mod', relpath: '../'};</script>
|
||
</nav>
|
||
|
||
<nav class="sub">
|
||
<form class="search-form js-only">
|
||
<div class="search-container">
|
||
<input class="search-input" name="search"
|
||
autocomplete="off"
|
||
placeholder="Click or press ‘S’ to search, ‘?’ for more options…"
|
||
type="search">
|
||
</div>
|
||
</form>
|
||
</nav>
|
||
|
||
<section id='main' class="content">
|
||
<h1 class='fqn'><span class='in-band'>Crate <a class="mod" href=''>deflate</a></span><span class='out-of-band'><span id='render-detail'>
|
||
<a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">
|
||
[<span class='inner'>−</span>]
|
||
</a>
|
||
</span><a class='srclink' href='../src/deflate/lib.rs.html#1-498' title='goto source code'>[src]</a></span></h1>
|
||
<div class='docblock'><p>An implementation an encoder using <a href="http://www.gzip.org/zlib/rfc-deflate.html">DEFLATE</a>
|
||
compression algorightm in pure rust.</p>
|
||
|
||
<p>This library provides functions to compress data using the DEFLATE algorithm,
|
||
optionally wrapped using the <a href="https://tools.ietf.org/html/rfc1950">zlib</a> or
|
||
<a href="http://www.gzip.org/zlib/rfc-gzip.html">gzip</a> formats.
|
||
The current implementation is still a bit lacking speed-wise compared to C-libraries
|
||
like zlib and miniz.</p>
|
||
|
||
<p>The deflate algorithm is an older compression algorithm that is still widely used today,
|
||
by e.g html headers, the <code>.png</code> inage format, the unix <code>gzip</code> program and commonly in <code>.zip</code>
|
||
files. The <code>zlib</code> and <code>gzip</code> formats are wrappers around DEFLATE-compressed data, containing
|
||
some extra metadata and a checksum to validate the integrity of the raw data.</p>
|
||
|
||
<p>The deflate algorithm does not perform as well as newer algorhitms used in file formats such as
|
||
<code>.7z</code>, <code>.rar</code>, <code>.xz</code> and <code>.bz2</code>, and is thus not the ideal choice for applications where
|
||
the <code>DEFLATE</code> format (with or without wrappers) is not required.</p>
|
||
|
||
<p>Support for the gzip wrapper (the wrapper that is used in <code>.gz</code> files) is disabled by default,
|
||
but can be enabled with the <code>gzip</code> feature.</p>
|
||
|
||
<p>As this library is still in development, the compression output may change slightly
|
||
between versions.</p>
|
||
|
||
<h1 id='examples' class='section-header'><a href='#examples'>Examples:</a></h1>
|
||
<h2 id='simple-compression-function' class='section-header'><a href='#simple-compression-function'>Simple compression function:</a></h2>
|
||
<pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">deflate</span>::<span class="ident">deflate_bytes</span>;
|
||
|
||
<span class="kw">let</span> <span class="ident">data</span> <span class="op">=</span> <span class="string">b"Some data"</span>;
|
||
<span class="kw">let</span> <span class="ident">compressed</span> <span class="op">=</span> <span class="ident">deflate_bytes</span>(<span class="ident">data</span>);</pre>
|
||
|
||
<h2 id='using-a-writer' class='section-header'><a href='#using-a-writer'>Using a writer:</a></h2>
|
||
<pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">io</span>::<span class="ident">Write</span>;
|
||
|
||
<span class="kw">use</span> <span class="ident">deflate</span>::<span class="ident">Compression</span>;
|
||
<span class="kw">use</span> <span class="ident">deflate</span>::<span class="ident">write</span>::<span class="ident">ZlibEncoder</span>;
|
||
|
||
<span class="kw">let</span> <span class="ident">data</span> <span class="op">=</span> <span class="string">b"This is some test data"</span>;
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">encoder</span> <span class="op">=</span> <span class="ident">ZlibEncoder</span>::<span class="ident">new</span>(<span class="ident">Vec</span>::<span class="ident">new</span>(), <span class="ident">Compression</span>::<span class="ident">Default</span>);
|
||
<span class="ident">encoder</span>.<span class="ident">write_all</span>(<span class="ident">data</span>).<span class="ident">expect</span>(<span class="string">"Write error!"</span>);
|
||
<span class="kw">let</span> <span class="ident">compressed_data</span> <span class="op">=</span> <span class="ident">encoder</span>.<span class="ident">finish</span>().<span class="ident">expect</span>(<span class="string">"Failed to finish compression!"</span>);</pre>
|
||
</div><h2 id='modules' class='section-header'><a href="#modules">Modules</a></h2>
|
||
<table>
|
||
<tr class=' module-item'>
|
||
<td><a class="mod" href="write/index.html"
|
||
title='mod deflate::write'>write</a></td>
|
||
<td class='docblock-short'>
|
||
<p>Encoders implementing a <code>Write</code> interface.</p>
|
||
</td>
|
||
</tr></table><h2 id='structs' class='section-header'><a href="#structs">Structs</a></h2>
|
||
<table>
|
||
<tr class=' module-item'>
|
||
<td><a class="struct" href="struct.CompressionOptions.html"
|
||
title='struct deflate::CompressionOptions'>CompressionOptions</a></td>
|
||
<td class='docblock-short'>
|
||
<p>A struct describing the options for a compressor or compression function.</p>
|
||
</td>
|
||
</tr></table><h2 id='enums' class='section-header'><a href="#enums">Enums</a></h2>
|
||
<table>
|
||
<tr class=' module-item'>
|
||
<td><a class="enum" href="enum.Compression.html"
|
||
title='enum deflate::Compression'>Compression</a></td>
|
||
<td class='docblock-short'>
|
||
<p>An enum describing the level of compression to be used by the encoder</p>
|
||
</td>
|
||
</tr>
|
||
<tr class=' module-item'>
|
||
<td><a class="enum" href="enum.MatchingType.html"
|
||
title='enum deflate::MatchingType'>MatchingType</a></td>
|
||
<td class='docblock-short'>
|
||
<p>An enum describing whether we use lazy or greedy matching.</p>
|
||
</td>
|
||
</tr>
|
||
<tr class=' module-item'>
|
||
<td><a class="enum" href="enum.SpecialOptions.html"
|
||
title='enum deflate::SpecialOptions'>SpecialOptions</a></td>
|
||
<td class='docblock-short'>
|
||
<p>Enum allowing some special options (not implemented yet)!</p>
|
||
</td>
|
||
</tr></table><h2 id='functions' class='section-header'><a href="#functions">Functions</a></h2>
|
||
<table>
|
||
<tr class=' module-item'>
|
||
<td><a class="fn" href="fn.deflate_bytes.html"
|
||
title='fn deflate::deflate_bytes'>deflate_bytes</a></td>
|
||
<td class='docblock-short'>
|
||
<p>Compress the given slice of bytes with DEFLATE compression using the default compression
|
||
level.</p>
|
||
</td>
|
||
</tr>
|
||
<tr class=' module-item'>
|
||
<td><a class="fn" href="fn.deflate_bytes_conf.html"
|
||
title='fn deflate::deflate_bytes_conf'>deflate_bytes_conf</a></td>
|
||
<td class='docblock-short'>
|
||
<p>Compress the given slice of bytes with DEFLATE compression.</p>
|
||
</td>
|
||
</tr>
|
||
<tr class=' module-item'>
|
||
<td><a class="fn" href="fn.deflate_bytes_zlib.html"
|
||
title='fn deflate::deflate_bytes_zlib'>deflate_bytes_zlib</a></td>
|
||
<td class='docblock-short'>
|
||
<p>Compress the given slice of bytes with DEFLATE compression, including a zlib header and trailer,
|
||
using the default compression level.</p>
|
||
</td>
|
||
</tr>
|
||
<tr class=' module-item'>
|
||
<td><a class="fn" href="fn.deflate_bytes_zlib_conf.html"
|
||
title='fn deflate::deflate_bytes_zlib_conf'>deflate_bytes_zlib_conf</a></td>
|
||
<td class='docblock-short'>
|
||
<p>Compress the given slice of bytes with DEFLATE compression, including a zlib header and trailer.</p>
|
||
</td>
|
||
</tr></table></section>
|
||
<section id='search' class="content hidden"></section>
|
||
|
||
<section class="footer"></section>
|
||
|
||
<aside id="help" class="hidden">
|
||
<div>
|
||
<h1 class="hidden">Help</h1>
|
||
|
||
<div class="shortcuts">
|
||
<h2>Keyboard Shortcuts</h2>
|
||
|
||
<dl>
|
||
<dt>?</dt>
|
||
<dd>Show this help dialog</dd>
|
||
<dt>S</dt>
|
||
<dd>Focus the search field</dd>
|
||
<dt>⇤</dt>
|
||
<dd>Move up in search results</dd>
|
||
<dt>⇥</dt>
|
||
<dd>Move down in search results</dd>
|
||
<dt>⏎</dt>
|
||
<dd>Go to active search result</dd>
|
||
<dt>+</dt>
|
||
<dd>Collapse/expand all sections</dd>
|
||
</dl>
|
||
</div>
|
||
|
||
<div class="infos">
|
||
<h2>Search Tricks</h2>
|
||
|
||
<p>
|
||
Prefix searches with a type followed by a colon (e.g.
|
||
<code>fn:</code>) to restrict the search to a given type.
|
||
</p>
|
||
|
||
<p>
|
||
Accepted types are: <code>fn</code>, <code>mod</code>,
|
||
<code>struct</code>, <code>enum</code>,
|
||
<code>trait</code>, <code>type</code>, <code>macro</code>,
|
||
and <code>const</code>.
|
||
</p>
|
||
|
||
<p>
|
||
Search functions by type signature (e.g.
|
||
<code>vec -> usize</code> or <code>* -> vec</code>)
|
||
</p>
|
||
</div>
|
||
</div>
|
||
</aside>
|
||
|
||
|
||
|
||
<script>
|
||
window.rootPath = "../";
|
||
window.currentCrate = "deflate";
|
||
</script>
|
||
<script src="../main.js"></script>
|
||
<script defer src="../search-index.js"></script>
|
||
</body>
|
||
</html> |