<!DOCTYPE html><htmllang="en"><head><metacharset="utf-8"><metaname="viewport"content="width=device-width, initial-scale=1.0"><metaname="generator"content="rustdoc"><metaname="description"content="The high-level intermediate representation for a look-around assertion."><title>Look in regex_syntax::hir - Rust</title><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><linkrel="stylesheet"href="../../static.files/normalize-76eba96aa4d2e634.css"><linkrel="stylesheet"href="../../static.files/rustdoc-5bc39a1768837dd0.css"><metaname="rustdoc-vars"data-root-path="../../"data-static-root-path="../../static.files/"data-current-crate="regex_syntax"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"><scriptsrc="../../static.files/storage-4c98445ec4002617.js"></script><scriptdefersrc="sidebar-items.js"></script><scriptdefersrc="../../static.files/main-48f368f3872407c8.js"></script><noscript><linkrel="stylesheet"href="../../static.files/noscript-04d5337699b92874.css"></noscript><linkrel="alternate icon"type="image/png"href="../../static.files/favicon-16x16-8b506e7a72182f1c.png"><linkrel="alternate icon"type="image/png"href="../../static.files/favicon-32x32-422f7d1d52889060.png"><linkrel="icon"type="image/svg+xml"href="../../static.files/favicon-2c020d218678b618.svg"></head><bodyclass="rustdoc enum"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><navclass="mobile-topbar"><buttonclass="sidebar-menu-toggle"title="show sidebar"></button></nav><navclass="sidebar"><divclass="sidebar-crate"><h2><ahref="../../regex_syntax/index.html">regex_syntax</a><spanclass="version">0.8.2</span></h2></div><h2class="location"><ahref="#">Look</a></h2><divclass="sidebar-elems"><section><h3><ahref="#variants">Variants</a></h3><ulclass="block variant"><li><ahref="#variant.End">End</a></li><li><ahref="#variant.EndCRLF">EndCRLF</a></li><li><ahref="#variant.EndLF">EndLF</a></li><li><ahref="#variant.Start">Start</a></li><li><ahref="#variant.StartCRLF">StartCRLF</a></li><li><ahref="#variant.StartLF">StartLF</a></li><li><ahref="#variant.WordAscii">WordAscii</a></li><li><ahref="#variant.WordAsciiNegate">WordAsciiNegate</a></li><li><ahref="#variant.WordEndAscii">WordEndAscii</a></li><li><ahref="#variant.WordEndHalfAscii">WordEndHalfAscii</a></li><li><ahref="#variant.WordEndHalfUnicode">WordEndHalfUnicode</a></li><li><ahref="#variant.WordEndUnicode">WordEndUnicode</a></li><li><ahref="#variant.WordStartAscii">WordStartAscii</a></li><li><ahref="#variant.WordStartHalfAscii">WordStartHalfAscii</a></li><li><ahref="#variant.WordStartHalfUnicode">WordStartHalfUnicode</a></li><li><ahref="#variant.WordStartUnicode">WordStartUnicode</a></li><li><ahref="#variant.WordUnicode">WordUnicode</a></li><li><ahref="#variant.WordUnicodeNegate">WordUnicodeNegate</a></li></ul><h3><ahref="#implementations">Methods</a></h3><ulclass="block method"><li><ahref="#method.as_char">as_char</a></li><li><ahref="#method.as_repr">as_repr</a></li><li><ahref="#method.from_repr">from_repr</a></li><li><ahref="#method.reversed">reversed</a></li></ul><h3><ahref="#trait-implementations">Trait Implementations</a></h3><ulclass="block trait-implementation"><li><ahref="#impl-Clone-for-Look">Clone</a></li><li><ahre
<main><divclass="width-limiter"><navclass="sub"><formclass="search-form"><span></span><divid="sidebar-button"tabindex="-1"><ahref="../../regex_syntax/all.html"title="show sidebar"></a></div><inputclass="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"><divid="help-button"tabindex="-1"><ahref="../../help.html"title="help">?</a></div><divid="settings-menu"tabindex="-1"><ahref="../../settings.html"title="settings"><imgwidth="22"height="22"alt="Change settings"src="../../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><sectionid="main-content"class="content"><divclass="main-heading"><h1>Enum <ahref="../index.html">regex_syntax</a>::<wbr><ahref="index.html">hir</a>::<wbr><aclass="enum"href="#">Look</a><buttonid="copy-path"title="Copy item path to clipboard"><imgsrc="../../static.files/clipboard-7571035ce49a181d.svg"width="19"height="18"alt="Copy item path"></button></h1><spanclass="out-of-band"><aclass="src"href="../../src/regex_syntax/hir/mod.rs.html#1601-1674">source</a> · <buttonid="toggle-all-docs"title="collapse all docs">[<span>−</span>]</button></span></div><preclass="rust item-decl"><code>pub enum Look {
</details>}</code></pre><detailsclass="toggle top-doc"open><summaryclass="hideme"><span>Expand description</span></summary><divclass="docblock"><p>The high-level intermediate representation for a look-around assertion.</p>
<p>An assertion match is always zero-length. Also called an “empty match.”</p>
</div></details><h2id="variants"class="variants section-header">Variants<ahref="#variants"class="anchor">§</a></h2><divclass="variants"><sectionid="variant.Start"class="variant"><ahref="#variant.Start"class="anchor">§</a><h3class="code-header">Start = 1</h3></section><divclass="docblock"><p>Match the beginning of text. Specifically, this matches at the starting
position of the input.</p>
</div><sectionid="variant.End"class="variant"><ahref="#variant.End"class="anchor">§</a><h3class="code-header">End = 2</h3></section><divclass="docblock"><p>Match the end of text. Specifically, this matches at the ending
position of the input.</p>
</div><sectionid="variant.StartLF"class="variant"><ahref="#variant.StartLF"class="anchor">§</a><h3class="code-header">StartLF = 4</h3></section><divclass="docblock"><p>Match the beginning of a line or the beginning of text. Specifically,
this matches at the starting position of the input, or at the position
immediately following a <code>\n</code> character.</p>
</div><sectionid="variant.EndLF"class="variant"><ahref="#variant.EndLF"class="anchor">§</a><h3class="code-header">EndLF = 8</h3></section><divclass="docblock"><p>Match the end of a line or the end of text. Specifically, this matches
at the end position of the input, or at the position immediately
preceding a <code>\n</code> character.</p>
</div><sectionid="variant.StartCRLF"class="variant"><ahref="#variant.StartCRLF"class="anchor">§</a><h3class="code-header">StartCRLF = 16</h3></section><divclass="docblock"><p>Match the beginning of a line or the beginning of text. Specifically,
this matches at the starting position of the input, or at the position
immediately following either a <code>\r</code> or <code>\n</code> character, but never after
a <code>\r</code> when a <code>\n</code> follows.</p>
</div><sectionid="variant.EndCRLF"class="variant"><ahref="#variant.EndCRLF"class="anchor">§</a><h3class="code-header">EndCRLF = 32</h3></section><divclass="docblock"><p>Match the end of a line or the end of text. Specifically, this matches
at the end position of the input, or at the position immediately
preceding a <code>\r</code> or <code>\n</code> character, but never before a <code>\n</code> when a <code>\r</code>
precedes it.</p>
</div><sectionid="variant.WordAscii"class="variant"><ahref="#variant.WordAscii"class="anchor">§</a><h3class="code-header">WordAscii = 64</h3></section><divclass="docblock"><p>Match an ASCII-only word boundary. That is, this matches a position
where the left adjacent character and right adjacent character
correspond to a word and non-word or a non-word and word character.</p>
</div><sectionid="variant.WordAsciiNegate"class="variant"><ahref="#variant.WordAsciiNegate"class="anchor">§</a><h3class="code-header">WordAsciiNegate = 128</h3></section><divclass="docblock"><p>Match an ASCII-only negation of a word boundary.</p>
</div><sectionid="variant.WordUnicode"class="variant"><ahref="#variant.WordUnicode"class="anchor">§</a><h3class="code-header">WordUnicode = 256</h3></section><divclass="docblock"><p>Match a Unicode-aware word boundary. That is, this matches a position
where the left adjacent character and right adjacent character
correspond to a word and non-word or a non-word and word character.</p>
</div><sectionid="variant.WordUnicodeNegate"class="variant"><ahref="#variant.WordUnicodeNegate"class="anchor">§</a><h3class="code-header">WordUnicodeNegate = 512</h3></section><divclass="docblock"><p>Match a Unicode-aware negation of a word boundary.</p>
</div><sectionid="variant.WordStartAscii"class="variant"><ahref="#variant.WordStartAscii"class="anchor">§</a><h3class="code-header">WordStartAscii = 1_024</h3></section><divclass="docblock"><p>Match the start of an ASCII-only word boundary. That is, this matches a
position at either the beginning of the haystack or where the previous
character is not a word character and the following character is a word
character.</p>
</div><sectionid="variant.WordEndAscii"class="variant"><ahref="#variant.WordEndAscii"class="anchor">§</a><h3class="code-header">WordEndAscii = 2_048</h3></section><divclass="docblock"><p>Match the end of an ASCII-only word boundary. That is, this matches
a position at either the end of the haystack or where the previous
character is a word character and the following character is not a word
character.</p>
</div><sectionid="variant.WordStartUnicode"class="variant"><ahref="#variant.WordStartUnicode"class="anchor">§</a><h3class="code-header">WordStartUnicode = 4_096</h3></section><divclass="docblock"><p>Match the start of a Unicode word boundary. That is, this matches a
position at either the beginning of the haystack or where the previous
character is not a word character and the following character is a word
character.</p>
</div><sectionid="variant.WordEndUnicode"class="variant"><ahref="#variant.WordEndUnicode"class="anchor">§</a><h3class="code-header">WordEndUnicode = 8_192</h3></section><divclass="docblock"><p>Match the end of a Unicode word boundary. That is, this matches a
position at either the end of the haystack or where the previous
character is a word character and the following character is not a word
character.</p>
</div><sectionid="variant.WordStartHalfAscii"class="variant"><ahref="#variant.WordStartHalfAscii"class="anchor">§</a><h3class="code-header">WordStartHalfAscii = 16_384</h3></section><divclass="docblock"><p>Match the start half of an ASCII-only word boundary. That is, this
matches a position at either the beginning of the haystack or where the
previous character is not a word character.</p>
</div><sectionid="variant.WordEndHalfAscii"class="variant"><ahref="#variant.WordEndHalfAscii"class="anchor">§</a><h3class="code-header">WordEndHalfAscii = 32_768</h3></section><divclass="docblock"><p>Match the end half of an ASCII-only word boundary. That is, this
matches a position at either the end of the haystack or where the
following character is not a word character.</p>
</div><sectionid="variant.WordStartHalfUnicode"class="variant"><ahref="#variant.WordStartHalfUnicode"class="anchor">§</a><h3class="code-header">WordStartHalfUnicode = 65_536</h3></section><divclass="docblock"><p>Match the start half of a Unicode word boundary. That is, this matches
a position at either the beginning of the haystack or where the
previous character is not a word character.</p>
</div><sectionid="variant.WordEndHalfUnicode"class="variant"><ahref="#variant.WordEndHalfUnicode"class="anchor">§</a><h3class="code-header">WordEndHalfUnicode = 131_072</h3></section><divclass="docblock"><p>Match the end half of a Unicode word boundary. That is, this matches
a position at either the end of the haystack or where the following
character is not a word character.</p>
</div></div><h2id="implementations"class="section-header">Implementations<ahref="#implementations"class="anchor">§</a></h2><divid="implementations-list"><detailsclass="toggle implementors-toggle"open><summary><sectionid="impl-Look"class="impl"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#1676-1775">source</a><ahref="#impl-Look"class="anchor">§</a><h3class="code-header">impl <aclass="enum"href="enum.Look.html"title="enum regex_syntax::hir::Look">Look</a></h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.reversed"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#1683-1704">source</a><h4class="code-header">pub const fn <ahref="#method.reversed"class="fn">reversed</a>(self) -><aclass="enum"href="enum.Look.html"title="enum regex_syntax::hir::Look">Look</a></h4></section></summary><divclass="docblock"><p>Flip the look-around assertion to its equivalent for reverse searches.
For example, <code>StartLF</code> gets translated to <code>EndLF</code>.</p>
<p>Some assertions, such as <code>WordUnicode</code>, remain the same since they
match the same positions regardless of the direction of the search.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.as_repr"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#1711-1715">source</a><h4class="code-header">pub const fn <ahref="#method.as_repr"class="fn">as_repr</a>(self) -><aclass="primitive"href="https://doc.rust-lang.org/1.77.0/std/primitive.u32.html">u32</a></h4></section></summary><divclass="docblock"><p>Return the underlying representation of this look-around enumeration
as an integer. Giving the return value to the <ahref="enum.Look.html#method.from_repr"title="associated function regex_syntax::hir::Look::from_repr"><code>Look::from_repr</code></a>
constructor is guaranteed to return the same look-around variant that
one started with within a semver compatible release of this crate.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.from_repr"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#1721-1743">source</a><h4class="code-header">pub const fn <ahref="#method.from_repr"class="fn">from_repr</a>(repr: <aclass="primitive"href="https://doc.rust-lang.org/1.77.0/std/primitive.u32.html">u32</a>) -><aclass="enum"href="https://doc.rust-lang.org/1.77.0/core/option/enum.Option.html"title="enum core::option::Option">Option</a><<aclass="enum"href="enum.Look.html"title="enum regex_syntax::hir::Look">Look</a>></h4></section></summary><divclass="docblock"><p>Given the underlying representation of a <code>Look</code> value, return the
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.as_char"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#1753-1774">source</a><h4class="code-header">pub const fn <ahref="#method.as_char"class="fn">as_char</a>(self) -><aclass="primitive"href="https://doc.rust-lang.org/1.77.0/std/primitive.char.html">char</a></h4></section></summary><divclass="docblock"><p>Returns a convenient single codepoint representation of this
</div></details></div></details></div><h2id="trait-implementations"class="section-header">Trait Implementations<ahref="#trait-implementations"class="anchor">§</a></h2><divid="trait-implementations-list"><detailsclass="toggle implementors-toggle"open><summary><sectionid="impl-Clone-for-Look"class="impl"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#1600">source</a><ahref="#impl-Clone-for-Look"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/clone/trait.Clone.html"title="trait core::clone::Clone">Clone</a> for <aclass="enum"href="enum.Look.html"title="enum regex_syntax::hir::Look">Look</a></h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.clone"class="method trait-impl"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#1600">source</a><ahref="#method.clone"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.0/core/clone/trait.Clone.html#tymethod.clone"class="fn">clone</a>(&self) -><aclass="enum"href="enum.Look.html"title="enum regex_syntax::hir::Look">Look</a></h4></section></summary><divclass='docblock'>Returns a copy of the value. <ahref="https://doc.rust-lang.org/1.77.0/core/clone/trait.Clone.html#tymethod.clone">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.clone_from"class="method trait-impl"><spanclass="rightside"><spanclass="since"title="Stable since Rust version 1.0.0">1.0.0</span> · <aclass="src"href="https://doc.rust-lang.org/1.77.0/src/core/clone.rs.html#169">source</a></span><ahref="#method.clone_from"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.0/core/clone/trait.Clone.html#method.clone_from"class="fn">clone_from</a>(&mut self, source: <aclass="primitive"href="https://doc.rust-lang.org/1.77.0/std/primitive.reference.html">&Self</a>)</h4></section></summary><divclass='docblock'>Performs copy-assignment from <code>source</code>. <ahref="https://doc.rust-lang.org/1.77.0/core/clone/trait.Clone.html#method.clone_from">Read more</a></div></details></div></details><detailsclass="toggle implementors-toggle"open><summary><sectionid="impl-Debug-for-Look"class="impl"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#1600">source</a><ahref="#impl-Debug-for-Look"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/fmt/trait.Debug.html"title="trait core::fmt::Debug">Debug</a> for <aclass="enum"href="enum.Look.html"title="enum regex_syntax::hir::Look">Look</a></h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.fmt"class="method trait-impl"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#1600">source</a><ahref="#method.fmt"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.0/core/fmt/trait.Debug.html#tymethod.fmt"class="fn">fmt</a>(&self, f: &mut <aclass="struct"href="https://doc.rust-lang.org/1.77.0/core/fmt/struct.Formatter.html"title="struct core::fmt::Formatter">Formatter</a><'_>) -><aclass="type"href="https://doc.rust-lang.org/1.77.0/core/fmt/type.Result.html"title="type core::fmt::Result">Result</a></h4></section></summary><divclass='docblock'>Formats the value using the given formatter. <ahref="https://doc.rust-lang.org/1.77.0/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></div></details></div></details><detailsclass="toggle implementors-toggle"open><summary><sectionid="impl-PartialEq-for-Look"class="impl"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#1600">source</a><ahref="#impl-PartialEq-for-Look"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/cmp/trait.PartialEq.html"title="trait core::cmp::PartialEq">PartialEq</a>
by <code>==</code>.</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.ne"class="method trait-impl"><spanclass="rightside"><spanclass="since"title="Stable since Rust version 1.0.0">1.0.0</span> · <aclass="src"href="https://doc.rust-lang.org/1.77.0/src/core/cmp.rs.html#242">source</a></span><ahref="#method.ne"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.0/core/cmp/trait.PartialEq.html#method.ne"class="fn">ne</a>(&self, other: <aclass="primitive"href="https://doc.rust-lang.org/1.77.0/std/primitive.reference.html">&Rhs</a>) -><aclass="primitive"href="https://doc.rust-lang.org/1.77.0/std/primitive.bool.html">bool</a></h4></section></summary><divclass='docblock'>This method tests for <code>!=</code>. The default implementation is almost always
sufficient, and should not be overridden without very good reason.</div></details></div></details><sectionid="impl-Copy-for-Look"class="impl"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#1600">source</a><ahref="#impl-Copy-for-Look"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Copy.html"title="trait core::marker::Copy">Copy</a> for <aclass="enum"href="enum.Look.html"title="enum regex_syntax::hir::Look">Look</a></h3></section><sectionid="impl-Eq-for-Look"class="impl"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#1600">source</a><ahref="#impl-Eq-for-Look"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/cmp/trait.Eq.html"title="trait core::cmp::Eq">Eq</a> for <aclass="enum"href="enum.Look.html"title="enum regex_syntax::hir::Look">Look</a></h3></section><sectionid="impl-StructuralPartialEq-for-Look"class="impl"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#1600">source</a><ahref="#impl-StructuralPartialEq-for-Look"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/marker/trait.StructuralPartialEq.html"title="trait core::marker::StructuralPartialEq">StructuralPartialEq</a> for <aclass="enum"href="enum.Look.html"title="enum regex_syntax::hir::Look">Look</a></h3></section></div><h2id="synthetic-implementations"class="section-header">Auto Trait Implementations<ahref="#synthetic-implementations"class="anchor">§</a></h2><divid="synthetic-implementations-list"><sectionid="impl-RefUnwindSafe-for-Look"class="impl"><ahref="#impl-RefUnwindSafe-for-Look"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/panic/unwind_safe/trait.RefUnwindSafe.html"title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <aclass="enum"href="enum.Look.html"title="enum regex_syntax::hir::Look">Look</a></h3></section><sectionid="impl-Send-for-Look"class="impl"><ahref="#impl-Send-for-Look"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Send.html"title="trait core::marker::Send">Send</a> for <aclass="enum"href="enum.Look.html"title="enum regex_syntax::hir::Look">Look</a></h3></section><sectionid="impl-Sync-for-Look"class="impl"><ahref="#impl-Sync-for-Look"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Sync.html"title="trait core::marker::Sync">Sync</a> for <aclass="enum"href="enum.Look.html"title="enum regex_syntax::hir::Look">Look</a></h3></section><sectionid="impl-Unpin-for-Look"class="impl"><ahref="#impl-Unpin-for-Look"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Unpin.html"title="trait core::marker::Unpin">Unpin</a> for <aclass="enum"href="enum.Look.html"title="enum regex_syntax::hir::Look">Look</a></h3></section><sectionid="impl-UnwindSafe-for-Look"class="impl"><ahref="#impl-UnwindSafe-for-Look"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/panic/unwind_safe/trait.UnwindSafe.html"title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <aclass="enum"href="enum.Look.html"title="enum regex_syntax::hir::Look">Look</a></h3></section></div><h2id="blanket-implementations"class="section-header">Blanket Implementations<ahref="#blanket-implementations"class="anchor">§</a></h2><divid="blanket-implementations-list"><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-Any-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.0/src/core/any.rs.html#140">source</a><ahref="#impl-Any-for-T"class="anchor">§</a><h3class="code-header">impl<T><aclass="trait"href="https://doc.rust-lang.org/1.77.0
T: 'static + ?<aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.type_id"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.0/src/core/any.rs.html#141">source</a><ahref="#method.type_id"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.0/core/any/trait.Any.html#tymethod.type_id"class="fn">type_id</a>(&self) -><aclass="struct"href="https://doc.rust-lang.org/1.77.0/core/any/struct.TypeId.html"title="struct core::any::TypeId">TypeId</a></h4></section></summary><divclass='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <ahref="https://doc.rust-lang.org/1.77.0/core/any/trait.Any.html#tymethod.type_id">Read more</a></div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-Borrow%3CT%3E-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.0/src/core/borrow.rs.html#208">source</a><ahref="#impl-Borrow%3CT%3E-for-T"class="anchor">§</a><h3class="code-header">impl<T><aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/borrow/trait.Borrow.html"title="trait core::borrow::Borrow">Borrow</a><T> for T<divclass="where">where
T: ?<aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.borrow"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.0/src/core/borrow.rs.html#210">source</a><ahref="#method.borrow"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.0/core/borrow/trait.Borrow.html#tymethod.borrow"class="fn">borrow</a>(&self) -><aclass="primitive"href="https://doc.rust-lang.org/1.77.0/std/primitive.reference.html">&T</a></h4></section></summary><divclass='docblock'>Immutably borrows from an owned value. <ahref="https://doc.rust-lang.org/1.77.0/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-BorrowMut%3CT%3E-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.0/src/core/borrow.rs.html#216">source</a><ahref="#impl-BorrowMut%3CT%3E-for-T"class="anchor">§</a><h3class="code-header">impl<T><aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/borrow/trait.BorrowMut.html"title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T<divclass="where">where
T: ?<aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.borrow_mut"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.0/src/core/borrow.rs.html#217">source</a><ahref="#method.borrow_mut"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut"class="fn">borrow_mut</a>(&mut self) -><aclass="primitive"href="https://doc.rust-lang.org/1.77.0/std/primitive.reference.html">&mut T</a></h4></section></summary><divclass='docblock'>Mutably borrows from an owned value. <ahref="https://doc.rust-lang.org/1.77.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-From%3CT%3E-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.0/src/core/convert/mod.rs.html#764">source</a><ahref="#impl-From%3CT%3E-for-T"class="anchor">§</a><h3class="code-header">impl<T><aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/convert/trait.From.html"title="trait core::convert::From">From</a><T> for T</h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.from"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.0/src/core/convert/mod.rs.html#767">source</a><ahref="#method.from"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.0/core/convert/trait.From.html#tymethod.from"class="fn">from</a>(t: T) -> T</h4></section></summary><divclass="docblock"><p>Returns the argument unchanged.</p>
</div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-Into%3CU%3E-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.0/src/core/convert/mod.rs.html#747-749">source</a><ahref="#impl-Into%3CU%3E-for-T"class="anchor">§</a><h3class="code-header">impl<T, U><aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/convert/trait.Into.html"title="trait core::convert::Into">Into</a><U> for T<divclass="where">where
<code><ahref="https://doc.rust-lang.org/1.77.0/core/convert/trait.From.html"title="trait core::convert::From">From</a><T> for U</code> chooses to do.</p>
</div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-ToOwned-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.0/src/alloc/borrow.rs.html#83-85">source</a><ahref="#impl-ToOwned-for-T"class="anchor">§</a><h3class="code-header">impl<T><aclass="trait"href="https://doc.rust-lang.org/1.77.0/alloc/borrow/trait.ToOwned.html"title="trait alloc::borrow::ToOwned">ToOwned</a> for T<divclass="where">where
T: <aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/clone/trait.Clone.html"title="trait core::clone::Clone">Clone</a>,</div></h3></section></summary><divclass="impl-items"><detailsclass="toggle"open><summary><sectionid="associatedtype.Owned"class="associatedtype trait-impl"><ahref="#associatedtype.Owned"class="anchor">§</a><h4class="code-header">type <ahref="https://doc.rust-lang.org/1.77.0/alloc/borrow/trait.ToOwned.html#associatedtype.Owned"class="associatedtype">Owned</a> = T</h4></section></summary><divclass='docblock'>The resulting type after obtaining ownership.</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.to_owned"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.0/src/alloc/borrow.rs.html#88">source</a><ahref="#method.to_owned"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.0/alloc/borrow/trait.ToOwned.html#tymethod.to_owned"class="fn">to_owned</a>(&self) -> T</h4></section></summary><divclass='docblock'>Creates owned data from borrowed data, usually by cloning. <ahref="https://doc.rust-lang.org/1.77.0/alloc/borrow/trait.ToOwned.html#tymethod.to_owned">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.clone_into"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.0/src/alloc/borrow.rs.html#92">source</a><ahref="#method.clone_into"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.0/alloc/borrow/trait.ToOwned.html#method.clone_into"class="fn">clone_into</a>(&self, target: <aclass="primitive"href="https://doc.rust-lang.org/1.77.0/std/primitive.reference.html">&mut T</a>)</h4></section></summary><divclass='docblock'>Uses borrowed data to replace owned data, usually by cloning. <ahref="https://doc.rust-lang.org/1.77.0/alloc/borrow/trait.ToOwned.html#method.clone_into">Read more</a></div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-TryFrom%3CU%3E-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.0/src/core/convert/mod.rs.html#804-806">source</a><ahref="#impl-TryFrom%3CU%3E-for-T"class="anchor">§</a><h3class="code-header">impl<T, U><aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U> for T<divclass="where">where
U: <aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/convert/trait.Into.html"title="trait core::convert::Into">Into</a><T>,</div></h3></section></summary><divclass="impl-items"><detailsclass="toggle"open><summary><sectionid="associatedtype.Error-1"class="associatedtype trait-impl"><ahref="#associatedtype.Error-1"class="anchor">§</a><h4class="code-header">type <ahref="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryFrom.html#associatedtype.Error"class="associatedtype">Error</a> = <aclass="enum"href="https://doc.rust-lang.org/1.77.0/core/convert/enum.Infallible.html"title="enum core::convert::Infallible">Infallible</a></h4></section></summary><divclass='docblock'>The type returned in the event of a conversion error.</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.try_from"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.0/src/core/convert/mod.rs.html#811">source</a><ahref="#method.try_from"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryFrom.html#tymethod.try_from"class="fn">try_from</a>(value: U) -><aclass="enum"href="https://doc.rust-lang.org/1.77.0/core/result/enum.Result.html"title="enum core::result::Result">Result</a><T, <T as <aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U>>::<aclass="associatedtype"href="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><divclass='docblock'>Performs the conversion.</div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-TryInto%3CU%3E-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.0/src/core/convert/mod.rs.html#789-791">source</a><ahref="#impl-TryInto%3CU%3E-for-T"class="anchor">§</a><h3class="code-header">impl<T, U><aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryInto.html"title="trait core::convert::TryInto">TryInto</a><U> for T<divclass="where">where
U: <aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>,</div></h3></section></summary><divclass="impl-items"><detailsclass="toggle"open><summary><sectionid="associatedtype.Error"class="associatedtype trait-impl"><ahref="#associatedtype.Error"class="anchor">§</a><h4class="code-header">type <ahref="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryInto.html#associatedtype.Error"class="associatedtype">Error</a> = <U as <aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="associatedtype"href="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><divclass='docblock'>The type returned in the event of a conversion error.</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.try_into"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.0/src/core/convert/mod.rs.html#796">source</a><ahref="#method.try_into"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryInto.html#tymethod.try_into"class="fn">try_into</a>(self) -><aclass="enum"href="https://doc.rust-lang.org/1.77.0/core/result/enum.Result.html"title="enum core::result::Result">Result</a><U, <U as <aclass="trait"href="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="associatedtype"href="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><divclass='docblock'>Performs the conversion.</div></details></div></details></div></section></div></main></body></html>
