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<!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="Percent-encode the given bytes with the given set."><title>percent_encode in percent_encoding - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../static.files/rustdoc-5bc39a1768837dd0.css"><meta name="rustdoc-vars" data-root-path="../" data-static-root-path="../static.files/" data-current-crate="percent_encoding" data-themes="" data-resource-suffix="" data-rustdoc-version="1.77.0 (aedd173a2 2024-03-17)" data-channel="1.77.0" data-search-js="search-dd67cee4cfa65049.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../static.files/storage-4c98445ec4002617.js"></script><script defer src="sidebar-items.js"></script><script defer src="../static.files/main-48f368f3872407c8.js"></script><noscript><link rel="stylesheet" href="../static.files/noscript-04d5337699b92874.css"></noscript><link rel="alternate icon" type="image/png" href="../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc fn"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle" title="show sidebar"></button></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../percent_encoding/index.html">percent_encoding</a><span class="version">2.3.1</span></h2></div><div class="sidebar-elems"></div></nav><div class="sidebar-resizer"></div>
<main><div class="width-limiter"><nav class="sub"><form class="search-form"><span></span><div id="sidebar-button" tabindex="-1"><a href="../percent_encoding/all.html" title="show sidebar"></a></div><input class="search-input" name="search" aria-label="Run search in the documentation" autocomplete="off" spellcheck="false" placeholder="Click or press S to search, ? for more options…" type="search"><div id="help-button" tabindex="-1"><a href="../help.html" title="help">?</a></div><div id="settings-menu" tabindex="-1"><a href="../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1>Function <a href="index.html">percent_encoding</a>::<wbr><a class="fn" href="#">percent_encode</a><button id="copy-path" title="Copy item path to clipboard"><img src="../static.files/clipboard-7571035ce49a181d.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="src" href="../src/percent_encoding/lib.rs.html#232-237">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>&#x2212;</span>]</button></span></div><pre class="rust item-decl"><code>pub fn percent_encode&lt;'a&gt;(
input: &amp;'a [<a class="primitive" href="https://doc.rust-lang.org/1.77.0/std/primitive.u8.html">u8</a>],
ascii_set: &amp;'static <a class="struct" href="struct.AsciiSet.html" title="struct percent_encoding::AsciiSet">AsciiSet</a>
) -&gt; <a class="struct" href="struct.PercentEncode.html" title="struct percent_encoding::PercentEncode">PercentEncode</a>&lt;'a&gt; <a href="#" class="tooltip" data-notable-ty="PercentEncode&lt;&#39;a&gt;"></a></code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Percent-encode the given bytes with the given set.</p>
<p>Non-ASCII bytes and bytes in <code>ascii_set</code> are encoded.</p>
<p>The return type:</p>
<ul>
<li>Implements <code>Iterator&lt;Item = &amp;str&gt;</code> and therefore has a <code>.collect::&lt;String&gt;()</code> method,</li>
<li>Implements <code>Display</code> and therefore has a <code>.to_string()</code> method,</li>
<li>Implements <code>Into&lt;Cow&lt;str&gt;&gt;</code> borrowing <code>input</code> when none of its bytes are encoded.</li>
</ul>
<h2 id="examples"><a class="doc-anchor" href="#examples">§</a>Examples</h2>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>percent_encoding::{percent_encode, NON_ALPHANUMERIC};
<span class="macro">assert_eq!</span>(percent_encode(<span class="string">b"foo bar?"</span>, NON_ALPHANUMERIC).to_string(), <span class="string">"foo%20bar%3F"</span>);</code></pre></div>
</div></details><script type="text/json" id="notable-traits-data">{"PercentEncode<'a>":"<h3>Notable traits for <code><a class=\"struct\" href=\"struct.PercentEncode.html\" title=\"struct percent_encoding::PercentEncode\">PercentEncode</a>&lt;'a&gt;</code></h3><pre><code><div class=\"where\">impl&lt;'a&gt; <a class=\"trait\" href=\"https://doc.rust-lang.org/1.77.0/core/iter/traits/iterator/trait.Iterator.html\" title=\"trait core::iter::traits::iterator::Iterator\">Iterator</a> for <a class=\"struct\" href=\"struct.PercentEncode.html\" title=\"struct percent_encoding::PercentEncode\">PercentEncode</a>&lt;'a&gt;</div><div class=\"where\"> type <a href=\"https://doc.rust-lang.org/1.77.0/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item\" class=\"associatedtype\">Item</a> = &amp;'a <a class=\"primitive\" href=\"https://doc.rust-lang.org/1.77.0/std/primitive.str.html\">str</a>;</div>"}</script></section></div></main></body></html>