35 lines
7.2 KiB
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35 lines
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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="Unpack a paragraph of already-wrapped text."><meta name="keywords" content="rust, rustlang, rust-lang, unfill"><title>unfill in textwrap - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../SourceCodePro-Semibold.ttf.woff2"><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="../ayu.css" disabled><link rel="stylesheet" type="text/css" href="../dark.css" disabled><link rel="stylesheet" type="text/css" href="../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../storage.js"></script><script src="../crates.js"></script><script defer src="../main.js"></script>
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</a><div class="sidebar-elems"><h2 class="location">Other items in<br><a href="index.html">textwrap</a></h2><div id="sidebar-vars" data-name="unfill" data-ty="fn" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><main><div class="width-limiter"><div class="sub-container"><a class="sub-logo-container" href="../textwrap/index.html"><img class="rust-logo" src="../rust-logo.png" alt="logo"></a><nav class="sub"><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu" title="themes"><img width="18" height="18" alt="Pick another theme!" src="../brush.svg"></button><div id="theme-choices" role="menu"></div></div><form class="search-form"><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><button type="button" id="help-button" title="help">?</button><a id="settings-menu" href="../settings.html" title="settings"><img width="18" height="18" alt="Change settings" src="../wheel.svg"></a></div></form></nav></div><section id="main-content" class="content"><h1 class="fqn"><span class="in-band">Function <a href="index.html">textwrap</a>::<wbr><a class="fn" href="#">unfill</a><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../clipboard.svg" width="19" height="18" alt="Copy item path"></button></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/textwrap/lib.rs.html#625-664" title="goto source code">[src]</a></span></h1><div class="docblock item-decl"><pre class="rust fn"><code>pub fn unfill(text: &<a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.str.html">str</a>) -> <a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.tuple.html">(</a><a class="struct" href="https://doc.rust-lang.org/1.59.0/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>, <a class="struct" href="struct.Options.html" title="struct textwrap::Options">Options</a><'_><a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.tuple.html">)</a></code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Unpack a paragraph of already-wrapped text.</p>
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<p>This function attempts to recover the original text from a single
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paragraph of text produced by the <a href="fn.fill.html" title="fill"><code>fill</code></a> function. This means
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that it turns</p>
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<div class="example-wrap"><pre class="language-text"><code>textwrap: a small
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library for
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wrapping text.</code></pre></div>
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<p>back into</p>
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<div class="example-wrap"><pre class="language-text"><code>textwrap: a small library for wrapping text.</code></pre></div>
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<p>In addition, it will recognize a common prefix among the lines.
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The prefix of the first line is returned in
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<a href="struct.Options.html#method.initial_indent" title="Options::initial_indent"><code>Options::initial_indent</code></a> and the prefix (if any) of the the
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other lines is returned in <a href="struct.Options.html#method.subsequent_indent" title="Options::subsequent_indent"><code>Options::subsequent_indent</code></a>.</p>
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<p>In addition to <code>' '</code>, the prefixes can consist of characters used
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for unordered lists (<code>'-'</code>, <code>'+'</code>, and <code>'*'</code>) and block quotes
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(<code>'>'</code>) in Markdown as well as characters often used for inline
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comments (<code>'#'</code> and <code>'/'</code>).</p>
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<p>The text must come from a single wrapped paragraph. This means
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that there can be no <code>"\n\n"</code> within the text.</p>
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<h2 id="examples" class="section-header"><a href="#examples">Examples</a></h2>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use</span> <span class="ident">textwrap::unfill</span>;
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<span class="kw">let</span> (<span class="ident">text</span>, <span class="ident">options</span>) <span class="op">=</span> <span class="ident">unfill</span>(<span class="string">"\
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* This is an
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example of
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a list item.
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"</span>);
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<span class="macro">assert_eq!</span>(<span class="ident">text</span>, <span class="string">"This is an example of a list item.\n"</span>);
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<span class="macro">assert_eq!</span>(<span class="ident">options</span>.<span class="ident">initial_indent</span>, <span class="string">"* "</span>);
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<span class="macro">assert_eq!</span>(<span class="ident">options</span>.<span class="ident">subsequent_indent</span>, <span class="string">" "</span>);</code></pre></div>
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