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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="Get the base direction of the text provided according to the Unicode Bidirectional Algorithm."><title>get_base_direction in unicode_bidi - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-46f98efaafac5295.ttf.woff2,FiraSans-Regular-018c141bf0843ffd.woff2,FiraSans-Medium-8f9a781e4970d388.woff2,SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2,SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../static.files/rustdoc-dd39b87e5fcfba68.css"><meta name="rustdoc-vars" data-root-path="../" data-static-root-path="../static.files/" data-current-crate="unicode_bidi" data-themes="" data-resource-suffix="" data-rustdoc-version="1.80.0 (051478957 2024-07-21)" data-channel="1.80.0" data-search-js="search-d52510db62a78183.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../static.files/storage-118b08c4c78b968e.js"></script><script defer src="sidebar-items.js"></script><script defer src="../static.files/main-20a3ad099b048cf2.js"></script><noscript><link rel="stylesheet" href="../static.files/noscript-df360f571f6edeae.css"></noscript><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="../unicode_bidi/index.html">unicode_bidi</a><span class="version">0.3.15</span></h2></div><div class="sidebar-elems"></div></nav><div class="sidebar-resizer"></div><main><div class="width-limiter"><rustdoc-search></rustdoc-search><section id="main-content" class="content"><div class="main-heading"><h1>Function <a href="index.html">unicode_bidi</a>::<wbr><a class="fn" href="#">get_base_direction</a><button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><span class="out-of-band"><a class="src" href="../src/unicode_bidi/lib.rs.html#1252-1254">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>−</span>]</button></span></div><pre class="rust item-decl"><code>pub fn get_base_direction<'a, T: <a class="trait" href="trait.TextSource.html" title="trait unicode_bidi::TextSource">TextSource</a><'a> + ?<a class="trait" href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>>(
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text: <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.reference.html">&'a T</a>,
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) -> <a class="enum" href="enum.Direction.html" title="enum unicode_bidi::Direction">Direction</a></code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Get the base direction of the text provided according to the Unicode Bidirectional Algorithm.</p>
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<p>See rules P2 and P3.</p>
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<p>The base direction is derived from the first character in the string with bidi character type
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L, R, or AL. If the first such character has type L, Direction::Ltr is returned. If the first
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such character has type R or AL, Direction::Rtl is returned.</p>
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<p>If the string does not contain any character of these types (outside of embedded isolate runs),
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then Direction::Mixed is returned (but should be considered as meaning “neutral” or “unknown”,
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not in fact mixed directions).</p>
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<p>This is a lightweight function for use when only the base direction is needed and no further
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bidi processing of the text is needed.</p>
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<p>If the text contains paragraph separators, this function considers only the first paragraph.</p>
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</div></details></section></div></main></body></html> |