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<title>percent_encoding - Rust</title>
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<p class='location'>Crate percent_encoding</p><div class="sidebar-elems"><div class="block items"><ul><li><a href="#macros">Macros</a></li><li><a href="#structs">Structs</a></li><li><a href="#traits">Traits</a></li><li><a href="#functions">Functions</a></li></ul></div><p class='location'></p><script>window.sidebarCurrent = {name: 'percent_encoding', ty: 'mod', relpath: '../'};</script></div>
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<section id='main' class="content">
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<h1 class='fqn'><span class='in-band'>Crate <a class="mod" href=''>percent_encoding</a></span><span class='out-of-band'><span id='render-detail'>
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<a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">
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[<span class='inner'>−</span>]
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</span><a class='srclink' href='../src/percent_encoding/lib.rs.html#9-440' title='goto source code'>[src]</a></span></h1>
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<div class='docblock'><p>URLs use special chacters to indicate the parts of the request. For example, a forward slash
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indicates a path. In order for that charcter to exist outside of a path separator, that
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charcter would need to be encoded.</p>
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<p>Percent encoding replaces reserved charcters with the <code>%</code> escape charcter followed by hexidecimal
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ASCII representaton. For non-ASCII charcters that are percent encoded, a UTF-8 byte sequence
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becomes percent encoded. A simple example can be seen when the space literal is replaced with
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<code>%20</code>.</p>
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<p>Percent encoding is further complicated by the fact that different parts of an URL have
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different encoding requirements. In order to support the variety of encoding requirements,
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<code>url::percent_encoding</code> includes different <em>encode sets</em>.
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See <a href="https://url.spec.whatwg.org/#percent-encoded-bytes">URL Standard</a> for details.</p>
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<p>This module provides some <code>*_ENCODE_SET</code> constants.
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If a different set is required, it can be created with
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the <a href="../macro.define_encode_set!.html"><code>define_encode_set!</code></a> macro.</p>
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<h1 id="examples" class="section-header"><a href="#examples">Examples</a></h1>
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<pre class="rust rust-example-rendered">
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<span class="kw">use</span> <span class="ident">url</span>::<span class="ident">percent_encoding</span>::{<span class="ident">utf8_percent_encode</span>, <span class="ident">DEFAULT_ENCODE_SET</span>};
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">utf8_percent_encode</span>(<span class="string">"foo bar?"</span>, <span class="ident">DEFAULT_ENCODE_SET</span>).<span class="ident">to_string</span>(), <span class="string">"foo%20bar%3F"</span>);</pre>
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</div><h2 id='macros' class='section-header'><a href="#macros">Macros</a></h2>
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<table>
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<tr class=' module-item'>
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<td><a class="macro" href="macro.define_encode_set.html"
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title='macro percent_encoding::define_encode_set'>define_encode_set</a></td>
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<td class='docblock-short'>
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<p>Define a new struct
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that implements the <a href="percent_encoding/trait.EncodeSet.html"><code>EncodeSet</code></a> trait,
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for use in <a href="percent_encoding/fn.percent_encode.html"><code>percent_decode()</code></a>
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and related functions.</p>
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</td>
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</tr></table><h2 id='structs' class='section-header'><a href="#structs">Structs</a></h2>
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<table>
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<tr class=' module-item'>
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<td><a class="struct" href="struct.DEFAULT_ENCODE_SET.html"
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title='struct percent_encoding::DEFAULT_ENCODE_SET'>DEFAULT_ENCODE_SET</a></td>
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<td class='docblock-short'>
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<p>This encode set is used for path components.</p>
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</td>
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</tr>
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<tr class=' module-item'>
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<td><a class="struct" href="struct.PATH_SEGMENT_ENCODE_SET.html"
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title='struct percent_encoding::PATH_SEGMENT_ENCODE_SET'>PATH_SEGMENT_ENCODE_SET</a></td>
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<td class='docblock-short'>
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<p>This encode set is used for on '/'-separated path segment</p>
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</td>
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</tr>
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<tr class=' module-item'>
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<td><a class="struct" href="struct.PercentDecode.html"
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title='struct percent_encoding::PercentDecode'>PercentDecode</a></td>
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<td class='docblock-short'>
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<p>The return type of <code>percent_decode()</code>.</p>
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</td>
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</tr>
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<tr class=' module-item'>
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<td><a class="struct" href="struct.PercentEncode.html"
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title='struct percent_encoding::PercentEncode'>PercentEncode</a></td>
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<td class='docblock-short'>
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<p>The return type of <code>percent_encode()</code> and <code>utf8_percent_encode()</code>.</p>
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</td>
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</tr>
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<tr class=' module-item'>
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<td><a class="struct" href="struct.QUERY_ENCODE_SET.html"
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title='struct percent_encoding::QUERY_ENCODE_SET'>QUERY_ENCODE_SET</a></td>
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<td class='docblock-short'>
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<p>This encode set is used in the URL parser for query strings.</p>
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</td>
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</tr>
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<tr class=' module-item'>
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<td><a class="struct" href="struct.SIMPLE_ENCODE_SET.html"
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title='struct percent_encoding::SIMPLE_ENCODE_SET'>SIMPLE_ENCODE_SET</a></td>
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<td class='docblock-short'>
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<p>This encode set is used for the path of cannot-be-a-base URLs.</p>
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</td>
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</tr>
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<tr class=' module-item'>
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<td><a class="struct" href="struct.USERINFO_ENCODE_SET.html"
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title='struct percent_encoding::USERINFO_ENCODE_SET'>USERINFO_ENCODE_SET</a></td>
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<td class='docblock-short'>
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<p>This encode set is used for username and password.</p>
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</td>
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</tr></table><h2 id='traits' class='section-header'><a href="#traits">Traits</a></h2>
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<table>
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<tr class=' module-item'>
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<td><a class="trait" href="trait.EncodeSet.html"
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title='trait percent_encoding::EncodeSet'>EncodeSet</a></td>
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<td class='docblock-short'>
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<p>Represents a set of characters / bytes that should be percent-encoded.</p>
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</td>
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</tr></table><h2 id='functions' class='section-header'><a href="#functions">Functions</a></h2>
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<table>
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<tr class=' module-item'>
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<td><a class="fn" href="fn.percent_decode.html"
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title='fn percent_encoding::percent_decode'>percent_decode</a></td>
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<td class='docblock-short'>
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<p>Percent-decode the given bytes.</p>
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</td>
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</tr>
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<tr class=' module-item'>
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<td><a class="fn" href="fn.percent_encode.html"
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title='fn percent_encoding::percent_encode'>percent_encode</a></td>
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<td class='docblock-short'>
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<p>Percent-encode the given bytes with the given encode set.</p>
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</td>
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</tr>
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<tr class=' module-item'>
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<td><a class="fn" href="fn.percent_encode_byte.html"
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title='fn percent_encoding::percent_encode_byte'>percent_encode_byte</a></td>
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<td class='docblock-short'>
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<p>Return the percent-encoding of the given bytes.</p>
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</td>
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</tr>
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<tr class=' module-item'>
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<td><a class="fn" href="fn.utf8_percent_encode.html"
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title='fn percent_encoding::utf8_percent_encode'>utf8_percent_encode</a></td>
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<td class='docblock-short'>
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<p>Percent-encode the UTF-8 encoding of the given string.</p>
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