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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="API documentation for the Rust `fill` fn in crate `textwrap`."><meta name="keywords" content="rust, rustlang, rust-lang, fill"><title>textwrap::fill - Rust</title><link rel="stylesheet" type="text/css" href="../normalize.css"><link rel="stylesheet" type="text/css" href="../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../dark.css"><link rel="stylesheet" type="text/css" href="../light.css" id="themeStyle"><script src="../storage.js"></script><noscript><link rel="stylesheet" href="../noscript.css"></noscript><link rel="shortcut icon" href="../favicon.ico"><style type="text/css">#crate-search{background-image:url("../down-arrow.svg");}</style></head><body class="rustdoc fn"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><a href='../textwrap/index.html'><div class='logo-container'><img src='../rust-logo.png' alt='logo'></div></a><div class="sidebar-elems"><p class='location'><a href='index.html'>textwrap</a></p><script>window.sidebarCurrent = {name: 'fill', ty: 'fn', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><a id="settings-menu" href="../settings.html"><img src="../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><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/textwrap/lib.rs.html#630-632' title='goto source code'>[src]</a></span><span class='in-band'>Function <a href='index.html'>textwrap</a>::<wbr><a class="fn" href=''>fill</a></span></h1><pre class='rust fn'>pub fn fill(s: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, width: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -> <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html" title="struct alloc::string::String">String</a></pre><div class='docblock'><p>Fill a line of text at <code>width</code> characters. Strings are wrapped
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based on their displayed width, not their size in bytes.</p>
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<p>The result is a string with newlines between each line. Use
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<a href="fn.wrap.html"><code>wrap</code></a> if you need access to the individual lines or
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<a href="fn.wrap_iter.html"><code>wrap_iter</code></a> for its iterator counterpart.</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered">
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<span class="kw">use</span> <span class="ident">textwrap</span>::<span class="ident">fill</span>;
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">fill</span>(<span class="string">"Memory safety without garbage collection."</span>, <span class="number">15</span>),
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<span class="string">"Memory safety\nwithout garbage\ncollection."</span>);</pre></div>
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<p>This function creates a Wrapper on the fly with default settings.
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If you need to set a language corpus for automatic hyphenation, or
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need to fill many strings, then it is suggested to create a Wrapper
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and call its <a href="struct.Wrapper.html#method.fill"><code>fill</code> method</a>.</p>
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