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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 `Expr` enum in crate `regex_syntax`."><meta name="keywords" content="rust, rustlang, rust-lang, Expr"><title>regex_syntax::Expr - 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 enum"><!--[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='../regex_syntax/index.html'><img src='../rust-logo.png' alt='logo' width='100'></a><p class='location'>Enum Expr</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#variants">Variants</a><div class="sidebar-links"><a href="#variant.Empty">Empty</a><a href="#variant.Literal">Literal</a><a href="#variant.LiteralBytes">LiteralBytes</a><a href="#variant.AnyChar">AnyChar</a><a href="#variant.AnyCharNoNL">AnyCharNoNL</a><a href="#variant.AnyByte">AnyByte</a><a href="#variant.AnyByteNoNL">AnyByteNoNL</a><a href="#variant.Class">Class</a><a href="#variant.ClassBytes">ClassBytes</a><a href="#variant.StartLine">StartLine</a><a href="#variant.EndLine">EndLine</a><a href="#variant.StartText">StartText</a><a href="#variant.EndText">EndText</a><a href="#variant.WordBoundary">WordBoundary</a><a href="#variant.NotWordBoundary">NotWordBoundary</a><a href="#variant.WordBoundaryAscii">WordBoundaryAscii</a><a href="#variant.NotWordBoundaryAscii">NotWordBoundaryAscii</a><a href="#variant.Group">Group</a><a href="#variant.Repeat">Repeat</a><a href="#variant.Concat">Concat</a><a href="#variant.Alternate">Alternate</a></div><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.has_anchored_end">has_anchored_end</a><a href="#method.has_anchored_start">has_anchored_start</a><a href="#method.has_bytes">has_bytes</a><a href="#method.is_anchored_end">is_anchored_end</a><a href="#method.is_anchored_start">is_anchored_start</a><a href="#method.parse">parse</a><a href="#method.prefixes">prefixes</a><a href="#method.suffixes">suffixes</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Clone">Clone</a><a href="#impl-Debug">Debug</a><a href="#impl-Display">Display</a><a href="#impl-Eq">Eq</a><a href="#impl-PartialEq%3CExpr%3E">PartialEq<Expr></a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-Send">Send</a><a href="#impl-Sync">Sync</a></div><a class="sidebar-title" href="#blanket-implementations">Blanket Implementations</a><div class="sidebar-links"><a href="#impl-Any">Any</a><a href="#impl-Borrow">Borrow</a><a href="#impl-BorrowMut">BorrowMut</a><a href="#impl-From">From</a><a href="#impl-Into">Into</a><a href="#impl-ToOwned">ToOwned</a><a href="#impl-ToString">ToString</a><a href="#impl-TryFrom">TryFrom</a><a href="#impl-TryInto">TryInto</a></div></div><p class='location'><a href='index.html'>regex_syntax</a></p><script>window.sidebarCurrent = {name: 'Expr', ty: 'enum', 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/regex_syntax/lib.rs.html#97-179' title='goto source code'>[src]</a></span><span class='in-band'>Enum <a href='index.html'>regex_syntax</a>::<wbr><a class="enum" href=''>Expr</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class='rust enum'>pub enum Expr {
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Empty,
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Literal {
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chars: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.char.html">char</a>>,
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casei: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>,
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},
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LiteralBytes {
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bytes: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a>>,
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casei: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>,
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},
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AnyChar,
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AnyCharNoNL,
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AnyByte,
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AnyByteNoNL,
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Class(<a class="struct" href="../regex_syntax/struct.CharClass.html" title="struct regex_syntax::CharClass">CharClass</a>),
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ClassBytes(<a class="struct" href="../regex_syntax/struct.ByteClass.html" title="struct regex_syntax::ByteClass">ByteClass</a>),
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StartLine,
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EndLine,
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StartText,
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EndText,
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WordBoundary,
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NotWordBoundary,
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WordBoundaryAscii,
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NotWordBoundaryAscii,
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Group {
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e: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><<a class="enum" href="../regex_syntax/enum.Expr.html" title="enum regex_syntax::Expr">Expr</a>>,
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i: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>>,
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name: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>>,
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},
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Repeat {
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e: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><<a class="enum" href="../regex_syntax/enum.Expr.html" title="enum regex_syntax::Expr">Expr</a>>,
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r: <a class="enum" href="../regex_syntax/enum.Repeater.html" title="enum regex_syntax::Repeater">Repeater</a>,
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greedy: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>,
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},
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Concat(<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="enum" href="../regex_syntax/enum.Expr.html" title="enum regex_syntax::Expr">Expr</a>>),
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Alternate(<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="enum" href="../regex_syntax/enum.Expr.html" title="enum regex_syntax::Expr">Expr</a>>),
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}</pre></div><div class='docblock'><p>A regular expression abstract syntax tree.</p>
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<p>An <code>Expr</code> represents the abstract syntax of a regular expression.</p>
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</div><h2 id='variants' class='variants small-section-header'>
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Variants<a href='#variants' class='anchor'></a></h2>
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<span id="variant.Empty" class="variant small-section-header"><a href="#variant.Empty" class="anchor field"></a><code id='Empty.v'>Empty</code></span><div class='docblock'><p>An empty regex (which never matches any text).</p>
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</div><span id="variant.Literal" class="variant small-section-header"><a href="#variant.Literal" class="anchor field"></a><code id='Literal.v'>Literal</code></span><div class='docblock'><p>A sequence of one or more literal characters to be matched.</p>
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</div><span class='autohide sub-variant' id='variant.Literal.fields'><h3>Fields of <b>Literal</b></h3><div><span id="variant.Literal.field.chars" class="variant small-section-header"><a href="#variant.Literal.field.chars" class="anchor field"></a><code id='Literal.v.chars.v'>chars: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.char.html">char</a>></code></span><div class='docblock'><p>The characters.</p>
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</div><span id="variant.Literal.field.casei" class="variant small-section-header"><a href="#variant.Literal.field.casei" class="anchor field"></a><code id='Literal.v.casei.v'>casei: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span><div class='docblock'><p>Whether to match case insensitively.</p>
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</div></div></span><span id="variant.LiteralBytes" class="variant small-section-header"><a href="#variant.LiteralBytes" class="anchor field"></a><code id='LiteralBytes.v'>LiteralBytes</code></span><div class='docblock'><p>A sequence of one or more literal bytes to be matched.</p>
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</div><span class='autohide sub-variant' id='variant.LiteralBytes.fields'><h3>Fields of <b>LiteralBytes</b></h3><div><span id="variant.LiteralBytes.field.bytes" class="variant small-section-header"><a href="#variant.LiteralBytes.field.bytes" class="anchor field"></a><code id='LiteralBytes.v.bytes.v'>bytes: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a>></code></span><div class='docblock'><p>The bytes.</p>
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</div><span id="variant.LiteralBytes.field.casei" class="variant small-section-header"><a href="#variant.LiteralBytes.field.casei" class="anchor field"></a><code id='LiteralBytes.v.casei.v'>casei: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span><div class='docblock'><p>Whether to match case insensitively.</p>
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<p>The interpretation of "case insensitive" in this context is
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ambiguous since <code>bytes</code> can be arbitrary. However, a good heuristic
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is to assume that the bytes are ASCII-compatible and do simple
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ASCII case folding.</p>
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</div></div></span><span id="variant.AnyChar" class="variant small-section-header"><a href="#variant.AnyChar" class="anchor field"></a><code id='AnyChar.v'>AnyChar</code></span><div class='docblock'><p>Match any character.</p>
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</div><span id="variant.AnyCharNoNL" class="variant small-section-header"><a href="#variant.AnyCharNoNL" class="anchor field"></a><code id='AnyCharNoNL.v'>AnyCharNoNL</code></span><div class='docblock'><p>Match any character, excluding new line (<code>0xA</code>).</p>
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</div><span id="variant.AnyByte" class="variant small-section-header"><a href="#variant.AnyByte" class="anchor field"></a><code id='AnyByte.v'>AnyByte</code></span><div class='docblock'><p>Match any byte.</p>
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</div><span id="variant.AnyByteNoNL" class="variant small-section-header"><a href="#variant.AnyByteNoNL" class="anchor field"></a><code id='AnyByteNoNL.v'>AnyByteNoNL</code></span><div class='docblock'><p>Match any byte, excluding new line (<code>0xA</code>).</p>
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</div><span id="variant.Class" class="variant small-section-header"><a href="#variant.Class" class="anchor field"></a><code id='Class.v'>Class(<a class="struct" href="../regex_syntax/struct.CharClass.html" title="struct regex_syntax::CharClass">CharClass</a>)</code></span><div class='docblock'><p>A character class.</p>
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</div><span id="variant.ClassBytes" class="variant small-section-header"><a href="#variant.ClassBytes" class="anchor field"></a><code id='ClassBytes.v'>ClassBytes(<a class="struct" href="../regex_syntax/struct.ByteClass.html" title="struct regex_syntax::ByteClass">ByteClass</a>)</code></span><div class='docblock'><p>A character class with byte ranges only.</p>
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</div><span id="variant.StartLine" class="variant small-section-header"><a href="#variant.StartLine" class="anchor field"></a><code id='StartLine.v'>StartLine</code></span><div class='docblock'><p>Match the start of a line or beginning of input.</p>
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</div><span id="variant.EndLine" class="variant small-section-header"><a href="#variant.EndLine" class="anchor field"></a><code id='EndLine.v'>EndLine</code></span><div class='docblock'><p>Match the end of a line or end of input.</p>
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</div><span id="variant.StartText" class="variant small-section-header"><a href="#variant.StartText" class="anchor field"></a><code id='StartText.v'>StartText</code></span><div class='docblock'><p>Match the beginning of input.</p>
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</div><span id="variant.EndText" class="variant small-section-header"><a href="#variant.EndText" class="anchor field"></a><code id='EndText.v'>EndText</code></span><div class='docblock'><p>Match the end of input.</p>
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</div><span id="variant.WordBoundary" class="variant small-section-header"><a href="#variant.WordBoundary" class="anchor field"></a><code id='WordBoundary.v'>WordBoundary</code></span><div class='docblock'><p>Match a word boundary (word character on one side and a non-word
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character on the other).</p>
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</div><span id="variant.NotWordBoundary" class="variant small-section-header"><a href="#variant.NotWordBoundary" class="anchor field"></a><code id='NotWordBoundary.v'>NotWordBoundary</code></span><div class='docblock'><p>Match a position that is not a word boundary (word or non-word
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characters on both sides).</p>
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</div><span id="variant.WordBoundaryAscii" class="variant small-section-header"><a href="#variant.WordBoundaryAscii" class="anchor field"></a><code id='WordBoundaryAscii.v'>WordBoundaryAscii</code></span><div class='docblock'><p>Match an ASCII word boundary.</p>
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</div><span id="variant.NotWordBoundaryAscii" class="variant small-section-header"><a href="#variant.NotWordBoundaryAscii" class="anchor field"></a><code id='NotWordBoundaryAscii.v'>NotWordBoundaryAscii</code></span><div class='docblock'><p>Match a position that is not an ASCII word boundary.</p>
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</div><span id="variant.Group" class="variant small-section-header"><a href="#variant.Group" class="anchor field"></a><code id='Group.v'>Group</code></span><div class='docblock'><p>A group, possibly non-capturing.</p>
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</div><span class='autohide sub-variant' id='variant.Group.fields'><h3>Fields of <b>Group</b></h3><div><span id="variant.Group.field.e" class="variant small-section-header"><a href="#variant.Group.field.e" class="anchor field"></a><code id='Group.v.e.v'>e: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><<a class="enum" href="../regex_syntax/enum.Expr.html" title="enum regex_syntax::Expr">Expr</a>></code></span><div class='docblock'><p>The expression inside the group.</p>
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</div><span id="variant.Group.field.i" class="variant small-section-header"><a href="#variant.Group.field.i" class="anchor field"></a><code id='Group.v.i.v'>i: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>></code></span><div class='docblock'><p>The capture index (starting at <code>1</code>) only for capturing groups.</p>
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</div><span id="variant.Group.field.name" class="variant small-section-header"><a href="#variant.Group.field.name" class="anchor field"></a><code id='Group.v.name.v'>name: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>></code></span><div class='docblock'><p>The capture name, only for capturing named groups.</p>
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</div></div></span><span id="variant.Repeat" class="variant small-section-header"><a href="#variant.Repeat" class="anchor field"></a><code id='Repeat.v'>Repeat</code></span><div class='docblock'><p>A repeat operator (<code>?</code>, <code>*</code>, <code>+</code> or <code>{m,n}</code>).</p>
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</div><span class='autohide sub-variant' id='variant.Repeat.fields'><h3>Fields of <b>Repeat</b></h3><div><span id="variant.Repeat.field.e" class="variant small-section-header"><a href="#variant.Repeat.field.e" class="anchor field"></a><code id='Repeat.v.e.v'>e: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><<a class="enum" href="../regex_syntax/enum.Expr.html" title="enum regex_syntax::Expr">Expr</a>></code></span><div class='docblock'><p>The expression to be repeated. Limited to literals, <code>.</code>, classes
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or grouped expressions.</p>
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</div><span id="variant.Repeat.field.r" class="variant small-section-header"><a href="#variant.Repeat.field.r" class="anchor field"></a><code id='Repeat.v.r.v'>r: <a class="enum" href="../regex_syntax/enum.Repeater.html" title="enum regex_syntax::Repeater">Repeater</a></code></span><div class='docblock'><p>The type of repeat operator used.</p>
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</div><span id="variant.Repeat.field.greedy" class="variant small-section-header"><a href="#variant.Repeat.field.greedy" class="anchor field"></a><code id='Repeat.v.greedy.v'>greedy: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span><div class='docblock'><p>Whether the repeat is greedy (match the most) or not (match the
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least).</p>
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</div></div></span><span id="variant.Concat" class="variant small-section-header"><a href="#variant.Concat" class="anchor field"></a><code id='Concat.v'>Concat(<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="enum" href="../regex_syntax/enum.Expr.html" title="enum regex_syntax::Expr">Expr</a>>)</code></span><div class='docblock'><p>A concatenation of expressions. Must be matched one after the other.</p>
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<p>N.B. A concat expression can only appear at the top-level or
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immediately inside a group expression.</p>
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</div><span id="variant.Alternate" class="variant small-section-header"><a href="#variant.Alternate" class="anchor field"></a><code id='Alternate.v'>Alternate(<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="enum" href="../regex_syntax/enum.Expr.html" title="enum regex_syntax::Expr">Expr</a>>)</code></span><div class='docblock'><p>An alternation of expressions. Only one must match.</p>
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<p>N.B. An alternate expression can only appear at the top-level or
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immediately inside a group expression.</p>
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</div><h2 id='methods' class='small-section-header'>Methods<a href='#methods' class='anchor'></a></h2><h3 id='impl' class='impl'><code class='in-band'>impl <a class="enum" href="../regex_syntax/enum.Expr.html" title="enum regex_syntax::Expr">Expr</a></code><a href='#impl' class='anchor'></a><a class='srclink' href='../src/regex_syntax/lib.rs.html#400-591' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.parse' class="method"><code id='parse.v'>pub fn <a href='#method.parse' class='fnname'>parse</a>(s: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>) -> <a class="type" href="../regex_syntax/type.Result.html" title="type regex_syntax::Result">Result</a><<a class="enum" href="../regex_syntax/enum.Expr.html" title="enum regex_syntax::Expr">Expr</a>></code><a class='srclink' href='../src/regex_syntax/lib.rs.html#406-408' title='goto source code'>[src]</a></h4><div class='docblock'><p>Parses a string in a regular expression syntax tree.</p>
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<p>This is a convenience method for parsing an expression using the
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default configuration. To tweak parsing options (such as which flags
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are enabled by default), use the <code>ExprBuilder</code> type.</p>
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</div><h4 id='method.prefixes' class="method"><code id='prefixes.v'>pub fn <a href='#method.prefixes' class='fnname'>prefixes</a>(&self) -> <a class="struct" href="../regex_syntax/struct.Literals.html" title="struct regex_syntax::Literals">Literals</a></code><a class='srclink' href='../src/regex_syntax/lib.rs.html#503-507' title='goto source code'>[src]</a></h4><div class='docblock'><p>Returns a set of literal prefixes extracted from this expression.</p>
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</div><h4 id='method.suffixes' class="method"><code id='suffixes.v'>pub fn <a href='#method.suffixes' class='fnname'>suffixes</a>(&self) -> <a class="struct" href="../regex_syntax/struct.Literals.html" title="struct regex_syntax::Literals">Literals</a></code><a class='srclink' href='../src/regex_syntax/lib.rs.html#510-514' title='goto source code'>[src]</a></h4><div class='docblock'><p>Returns a set of literal suffixes extracted from this expression.</p>
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</div><h4 id='method.is_anchored_start' class="method"><code id='is_anchored_start.v'>pub fn <a href='#method.is_anchored_start' class='fnname'>is_anchored_start</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a class='srclink' href='../src/regex_syntax/lib.rs.html#518-529' title='goto source code'>[src]</a></h4><div class='docblock'><p>Returns true if and only if the expression is required to match from
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the beginning of text.</p>
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</div><h4 id='method.has_anchored_start' class="method"><code id='has_anchored_start.v'>pub fn <a href='#method.has_anchored_start' class='fnname'>has_anchored_start</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a class='srclink' href='../src/regex_syntax/lib.rs.html#533-544' title='goto source code'>[src]</a></h4><div class='docblock'><p>Returns true if and only if the expression has at least one matchable
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sub-expression that must match the beginning of text.</p>
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</div><h4 id='method.is_anchored_end' class="method"><code id='is_anchored_end.v'>pub fn <a href='#method.is_anchored_end' class='fnname'>is_anchored_end</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a class='srclink' href='../src/regex_syntax/lib.rs.html#548-559' title='goto source code'>[src]</a></h4><div class='docblock'><p>Returns true if and only if the expression is required to match at the
|
||
end of the text.</p>
|
||
</div><h4 id='method.has_anchored_end' class="method"><code id='has_anchored_end.v'>pub fn <a href='#method.has_anchored_end' class='fnname'>has_anchored_end</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a class='srclink' href='../src/regex_syntax/lib.rs.html#563-574' title='goto source code'>[src]</a></h4><div class='docblock'><p>Returns true if and only if the expression has at least one matchable
|
||
sub-expression that must match the beginning of text.</p>
|
||
</div><h4 id='method.has_bytes' class="method"><code id='has_bytes.v'>pub fn <a href='#method.has_bytes' class='fnname'>has_bytes</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a class='srclink' href='../src/regex_syntax/lib.rs.html#578-590' title='goto source code'>[src]</a></h4><div class='docblock'><p>Returns true if and only if the expression contains sub-expressions
|
||
that can match arbitrary bytes.</p>
|
||
</div></div><h2 id='implementations' class='small-section-header'>Trait Implementations<a href='#implementations' class='anchor'></a></h2><div id='implementations-list'><h3 id='impl-PartialEq%3CExpr%3E' class='impl'><code class='in-band'>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a><<a class="enum" href="../regex_syntax/enum.Expr.html" title="enum regex_syntax::Expr">Expr</a>> for <a class="enum" href="../regex_syntax/enum.Expr.html" title="enum regex_syntax::Expr">Expr</a></code><a href='#impl-PartialEq%3CExpr%3E' class='anchor'></a><a class='srclink' href='../src/regex_syntax/lib.rs.html#96' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.eq' class="method hidden"><code id='eq.v'>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq' class='fnname'>eq</a>(&self, other: &<a class="enum" href="../regex_syntax/enum.Expr.html" title="enum regex_syntax::Expr">Expr</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a class='srclink' href='../src/regex_syntax/lib.rs.html#96' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>This method tests for <code>self</code> and <code>other</code> values to be equal, and is used by <code>==</code>. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq">Read more</a></p>
|
||
</div><h4 id='method.ne' class="method hidden"><code id='ne.v'>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#method.ne' class='fnname'>ne</a>(&self, other: &<a class="enum" href="../regex_syntax/enum.Expr.html" title="enum regex_syntax::Expr">Expr</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a class='srclink' href='../src/regex_syntax/lib.rs.html#96' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>This method tests for <code>!=</code>.</p>
|
||
</div></div><h3 id='impl-Clone' class='impl'><code class='in-band'>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="enum" href="../regex_syntax/enum.Expr.html" title="enum regex_syntax::Expr">Expr</a></code><a href='#impl-Clone' class='anchor'></a><a class='srclink' href='../src/regex_syntax/lib.rs.html#96' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.clone' class="method hidden"><code id='clone.v'>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone' class='fnname'>clone</a>(&self) -> <a class="enum" href="../regex_syntax/enum.Expr.html" title="enum regex_syntax::Expr">Expr</a></code><a class='srclink' href='../src/regex_syntax/lib.rs.html#96' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Returns a copy of the value. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p>
|
||
</div><h4 id='method.clone_from' class="method"><code id='clone_from.v'>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from' class='fnname'>clone_from</a>(&mut self, source: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)</code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/clone.rs.html#131-133' title='goto source code'>[src]</a></h4><div class='docblock'><p>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from">Read more</a></p>
|
||
</div></div><h3 id='impl-Eq' class='impl'><code class='in-band'>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> for <a class="enum" href="../regex_syntax/enum.Expr.html" title="enum regex_syntax::Expr">Expr</a></code><a href='#impl-Eq' class='anchor'></a><a class='srclink' href='../src/regex_syntax/lib.rs.html#96' title='goto source code'>[src]</a></h3><div class='impl-items'></div><h3 id='impl-Debug' class='impl'><code class='in-band'>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="enum" href="../regex_syntax/enum.Expr.html" title="enum regex_syntax::Expr">Expr</a></code><a href='#impl-Debug' class='anchor'></a><a class='srclink' href='../src/regex_syntax/lib.rs.html#96' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.fmt' class="method hidden"><code id='fmt.v'>fn <a href='https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt' class='fnname'>fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>) -> <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code><a class='srclink' href='../src/regex_syntax/lib.rs.html#96' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
|
||
</div></div><h3 id='impl-Display' class='impl'><code class='in-band'>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> for <a class="enum" href="../regex_syntax/enum.Expr.html" title="enum regex_syntax::Expr">Expr</a></code><a href='#impl-Display' class='anchor'></a><a class='srclink' href='../src/regex_syntax/lib.rs.html#1189-1261' title='goto source code'>[src]</a></h3><div class='docblock'><p>This implementation of <code>Display</code> will write a regular expression from the
|
||
syntax tree. It does not write the original string parsed.</p>
|
||
</div><div class='impl-items'><h4 id='method.fmt-1' class="method hidden"><code id='fmt.v-1'>fn <a href='https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html#tymethod.fmt' class='fnname'>fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>) -> <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code><a class='srclink' href='../src/regex_syntax/lib.rs.html#1190-1260' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html#tymethod.fmt">Read more</a></p>
|
||
</div></div></div><h2 id='synthetic-implementations' class='small-section-header'>Auto Trait Implementations<a href='#synthetic-implementations' class='anchor'></a></h2><div id='synthetic-implementations-list'><h3 id='impl-Send' class='impl'><code class='in-band'>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="enum" href="../regex_syntax/enum.Expr.html" title="enum regex_syntax::Expr">Expr</a></code><a href='#impl-Send' class='anchor'></a></h3><div class='impl-items'></div><h3 id='impl-Sync' class='impl'><code class='in-band'>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="enum" href="../regex_syntax/enum.Expr.html" title="enum regex_syntax::Expr">Expr</a></code><a href='#impl-Sync' class='anchor'></a></h3><div class='impl-items'></div></div><h2 id='blanket-implementations' class='small-section-header'>Blanket Implementations<a href='#blanket-implementations' class='anchor'></a></h2><div id='blanket-implementations-list'><h3 id='impl-From' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a> for T</code><a href='#impl-From' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#546-548' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.from' class="method hidden"><code id='from.v'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from' class='fnname'>from</a>(t: T) -> T</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#547' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||
</div></div><h3 id='impl-Into' class='impl'><code class='in-band'>impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>, </span></code><a href='#impl-Into' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#537-542' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.into' class="method hidden"><code id='into.v'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into' class='fnname'>into</a>(self) -> U</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#539-541' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||
</div></div><h3 id='impl-ToOwned' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html" title="trait alloc::borrow::ToOwned">ToOwned</a> for T <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>, </span></code><a href='#impl-ToOwned' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#80-91' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Owned' class="type"><code id='Owned.t'>type <a href='https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#associatedtype.Owned' class="type">Owned</a> = T</code></h4><h4 id='method.to_owned' class="method hidden"><code id='to_owned.v'>fn <a href='https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#tymethod.to_owned' class='fnname'>to_owned</a>(&self) -> T</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#84-86' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Creates owned data from borrowed data, usually by cloning. <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#tymethod.to_owned">Read more</a></p>
|
||
</div><h4 id='method.clone_into' class="method hidden"><code id='clone_into.v'>fn <a href='https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#method.clone_into' class='fnname'>clone_into</a>(&self, target: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T)</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#88-90' title='goto source code'>[src]</a></h4><div class='stability hidden'><div class='stab unstable'><details><summary><span class='emoji'>🔬</span> This is a nightly-only experimental API. (<code>toowned_clone_into</code>)</summary><p>recently added</p>
|
||
</details></div></div><div class='docblock hidden'><p>Uses borrowed data to replace owned data, usually by cloning. <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#method.clone_into">Read more</a></p>
|
||
</div></div><h3 id='impl-ToString' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/alloc/string/trait.ToString.html" title="trait alloc::string::ToString">ToString</a> for T <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href='#impl-ToString' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/alloc/string.rs.html#2122-2132' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.to_string' class="method hidden"><code id='to_string.v'>default fn <a href='https://doc.rust-lang.org/nightly/alloc/string/trait.ToString.html#tymethod.to_string' class='fnname'>to_string</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html" title="struct alloc::string::String">String</a></code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/alloc/string.rs.html#2124-2131' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Converts the given value to a <code>String</code>. <a href="https://doc.rust-lang.org/nightly/alloc/string/trait.ToString.html#tymethod.to_string">Read more</a></p>
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||
</div></div><h3 id='impl-TryFrom' class='impl'><code class='in-band'>impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>, </span></code><a href='#impl-TryFrom' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#565-571' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Error' class="type"><code id='Error.t'>type <a href='https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error' class="type">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
|
||
</div><h4 id='method.try_from' class="method hidden"><code id='try_from.v'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from' class='fnname'>try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#568-570' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||
</div></div><h3 id='impl-Borrow' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href='#impl-Borrow' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#213-215' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.borrow' class="method hidden"><code id='borrow.v'>fn <a href='https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow' class='fnname'>borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#214' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
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||
</div></div><h3 id='impl-Any' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T <span class="where fmt-newline">where<br> T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href='#impl-Any' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/any.rs.html#100-102' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.type_id' class="method hidden"><code id='type_id.v'>fn <a href='https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id' class='fnname'>type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/any.rs.html#101' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id">Read more</a></p>
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||
</div></div><h3 id='impl-BorrowMut' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href='#impl-BorrowMut' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#218-220' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.borrow_mut' class="method hidden"><code id='borrow_mut.v'>fn <a href='https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut' class='fnname'>borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#219' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></p>
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||
</div></div><h3 id='impl-TryInto' class='impl'><code class='in-band'>impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>, </span></code><a href='#impl-TryInto' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#553-560' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Error-1' class="type"><code id='Error.t-1'>type <a href='https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error' class="type">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
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</div><h4 id='method.try_into' class="method hidden"><code id='try_into.v'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into' class='fnname'>try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#557-559' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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