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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="The configuration used to determine a DFA’s start state for a search."><title>Config in regex_automata::util::start - 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="regex_automata" 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 struct"><!--[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="../../../regex_automata/index.html">regex_automata</a><span class="version">0.4.7</span></h2></div><h2 class="location"><a href="#">Config</a></h2><div class="sidebar-elems"><section><h3><a href="#implementations">Methods</a></h3><ul class="block method"><li><a href="#method.anchored">anchored</a></li><li><a href="#method.from_input_forward">from_input_forward</a></li><li><a href="#method.from_input_reverse">from_input_reverse</a></li><li><a href="#method.get_anchored">get_anchored</a></li><li><a href="#method.get_look_behind">get_look_behind</a></li><li><a href="#method.look_behind">look_behind</a></li><li><a href="#method.new">new</a></li></ul><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block trait-implementation"><li><a href="#impl-Clone-for-Config">Clone</a></li><li><a href="#impl-Debug-for-Config">Debug</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block synthetic-implementation"><li><a href="#impl-Freeze-for-Config">Freeze</a></li><li><a href="#impl-RefUnwindSafe-for-Config">RefUnwindSafe</a></li><li><a href="#impl-Send-for-Config">Send</a></li><li><a href="#impl-Sync-for-Config">Sync</a></li><li><a href="#impl-Unpin-for-Config">Unpin</a></li><li><a href="#impl-UnwindSafe-for-Config">UnwindSafe</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block blanket-implementation"><li><a href="#impl-Any-for-T">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-T">Borrow<T></a></li><li><a href="#impl-BorrowMut%3CT%3E-for-T">BorrowMut<T></a></li><li><a href="#impl-From%3CT%3E-for-T">From<T></a></li><li><a href="#impl-Into%3CU%3E-for-T">Into<U></a></li><li><a href="#impl-ToOwned-for-T">ToOwned</a></li><li><a href="#impl-TryFrom%3CU%3E-for-T">TryFrom<U></a></li><li><a href="#impl-TryInto%3CU%3E-for-T">TryInto<U></a></li></ul></section><h2><a href="index.html">In regex_automata::util::start</a></h2></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>Struct <a href="../../index.html">regex_automata</a>::<wbr><a href="../index.html">util</a>::<wbr><a href="index.html">start</a>::<wbr><a class="struct" href="#">Config</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/regex_automata/util/start.rs.html#121-124">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>−</span>]</button></span></div><pre class="rust item-decl"><code>pub struct Config { <span class="comment">/* private fields */</span> }</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>The configuration used to determine a DFA’s start state for a search.</p>
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<p>A DFA has a single starting state in the typical textbook description. That
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is, it corresponds to the set of all starting states for the NFA that built
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it, along with their espsilon closures. In this crate, however, DFAs have
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many possible start states due to a few factors:</p>
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<ul>
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<li>DFAs support the ability to run either anchored or unanchored searches.
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Each type of search needs its own start state. For example, an unanchored
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search requires starting at a state corresponding to a regex with a
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<code>(?s-u:.)*?</code> prefix, which will match through anything.</li>
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<li>DFAs also optionally support starting an anchored search for any one
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specific pattern. Each such pattern requires its own start state.</li>
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<li>If a look-behind assertion like <code>^</code> or <code>\b</code> is used in the regex, then
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the DFA will need to inspect a single byte immediately before the start of
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the search to choose the correct start state.</li>
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</ul>
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<p>Indeed, this configuration precisely encapsulates all of the above factors.
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The <a href="struct.Config.html#method.anchored" title="method regex_automata::util::start::Config::anchored"><code>Config::anchored</code></a> method sets which kind of anchored search to
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perform while the <a href="struct.Config.html#method.look_behind" title="method regex_automata::util::start::Config::look_behind"><code>Config::look_behind</code></a> method provides a way to set
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the byte that occurs immediately before the start of the search.</p>
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<p>Generally speaking, this type is only useful when you want to run searches
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without using an <a href="../../struct.Input.html" title="struct regex_automata::Input"><code>Input</code></a>. In particular, an <code>Input</code> wants a haystack
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slice, but callers may not have a contiguous sequence of bytes as a
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haystack in all cases. This type provides a lower level of control such
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that callers can provide their own anchored configuration and look-behind
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byte explicitly.</p>
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<h2 id="example"><a class="doc-anchor" href="#example">§</a>Example</h2>
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<p>This shows basic usage that permits running a search with a DFA without
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using the <code>Input</code> abstraction.</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>regex_automata::{
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dfa::{Automaton, dense},
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util::start,
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Anchored,
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};
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<span class="kw">let </span>dfa = dense::DFA::new(<span class="string">r"(?-u)\b\w+\b"</span>)<span class="question-mark">?</span>;
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<span class="kw">let </span>haystack = <span class="string">"quartz"</span>;
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<span class="kw">let </span>config = start::Config::new().anchored(Anchored::Yes);
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<span class="kw">let </span><span class="kw-2">mut </span>state = dfa.start_state(<span class="kw-2">&</span>config)<span class="question-mark">?</span>;
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<span class="kw">for </span><span class="kw-2">&</span>b <span class="kw">in </span>haystack.as_bytes().iter() {
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state = dfa.next_state(state, b);
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}
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state = dfa.next_eoi_state(state);
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<span class="macro">assert!</span>(dfa.is_match_state(state));
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</code></pre></div>
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<p>This example shows how to correctly run a search that doesn’t begin at
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the start of a haystack. Notice how we set the look-behind byte, and as
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a result, the <code>\b</code> assertion does not match.</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>regex_automata::{
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dfa::{Automaton, dense},
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util::start,
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Anchored,
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};
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<span class="kw">let </span>dfa = dense::DFA::new(<span class="string">r"(?-u)\b\w+\b"</span>)<span class="question-mark">?</span>;
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<span class="kw">let </span>haystack = <span class="string">"quartz"</span>;
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<span class="kw">let </span>config = start::Config::new()
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.anchored(Anchored::Yes)
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.look_behind(<span class="prelude-val">Some</span>(<span class="string">b'q'</span>));
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<span class="kw">let </span><span class="kw-2">mut </span>state = dfa.start_state(<span class="kw-2">&</span>config)<span class="question-mark">?</span>;
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<span class="kw">for </span><span class="kw-2">&</span>b <span class="kw">in </span>haystack.as_bytes().iter().skip(<span class="number">1</span>) {
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state = dfa.next_state(state, b);
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}
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state = dfa.next_eoi_state(state);
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<span class="comment">// No match!
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</span><span class="macro">assert!</span>(!dfa.is_match_state(state));
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</code></pre></div>
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<p>If we had instead not set a look-behind byte, then the DFA would assume
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that it was starting at the beginning of the haystack, and thus <code>\b</code> should
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match. This in turn would result in erroneously reporting a match:</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>regex_automata::{
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dfa::{Automaton, dense},
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util::start,
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Anchored,
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};
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<span class="kw">let </span>dfa = dense::DFA::new(<span class="string">r"(?-u)\b\w+\b"</span>)<span class="question-mark">?</span>;
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<span class="kw">let </span>haystack = <span class="string">"quartz"</span>;
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<span class="comment">// Whoops, forgot the look-behind byte...
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</span><span class="kw">let </span>config = start::Config::new().anchored(Anchored::Yes);
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<span class="kw">let </span><span class="kw-2">mut </span>state = dfa.start_state(<span class="kw-2">&</span>config)<span class="question-mark">?</span>;
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<span class="kw">for </span><span class="kw-2">&</span>b <span class="kw">in </span>haystack.as_bytes().iter().skip(<span class="number">1</span>) {
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state = dfa.next_state(state, b);
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}
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state = dfa.next_eoi_state(state);
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<span class="comment">// And now we get a match unexpectedly.
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</span><span class="macro">assert!</span>(dfa.is_match_state(state));
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</code></pre></div>
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</div></details><h2 id="implementations" class="section-header">Implementations<a href="#implementations" class="anchor">§</a></h2><div id="implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-Config" class="impl"><a class="src rightside" href="../../../src/regex_automata/util/start.rs.html#126-191">source</a><a href="#impl-Config" class="anchor">§</a><h3 class="code-header">impl <a class="struct" href="struct.Config.html" title="struct regex_automata::util::start::Config">Config</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.new" class="method"><a class="src rightside" href="../../../src/regex_automata/util/start.rs.html#131-133">source</a><h4 class="code-header">pub fn <a href="#method.new" class="fn">new</a>() -> <a class="struct" href="struct.Config.html" title="struct regex_automata::util::start::Config">Config</a></h4></section></summary><div class="docblock"><p>Create a new default start configuration.</p>
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<p>The default is an unanchored search that starts at the beginning of the
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haystack.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.from_input_forward" class="method"><a class="src rightside" href="../../../src/regex_automata/util/start.rs.html#141-147">source</a><h4 class="code-header">pub fn <a href="#method.from_input_forward" class="fn">from_input_forward</a>(input: &<a class="struct" href="../../struct.Input.html" title="struct regex_automata::Input">Input</a><'_>) -> <a class="struct" href="struct.Config.html" title="struct regex_automata::util::start::Config">Config</a></h4></section></summary><div class="docblock"><p>A convenience routine for building a start configuration from an
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<a href="../../struct.Input.html" title="struct regex_automata::Input"><code>Input</code></a> for a forward search.</p>
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<p>This automatically sets the look-behind byte to the byte immediately
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preceding the start of the search. If the start of the search is at
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offset <code>0</code>, then no look-behind byte is set.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.from_input_reverse" class="method"><a class="src rightside" href="../../../src/regex_automata/util/start.rs.html#155-158">source</a><h4 class="code-header">pub fn <a href="#method.from_input_reverse" class="fn">from_input_reverse</a>(input: &<a class="struct" href="../../struct.Input.html" title="struct regex_automata::Input">Input</a><'_>) -> <a class="struct" href="struct.Config.html" title="struct regex_automata::util::start::Config">Config</a></h4></section></summary><div class="docblock"><p>A convenience routine for building a start configuration from an
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<a href="../../struct.Input.html" title="struct regex_automata::Input"><code>Input</code></a> for a reverse search.</p>
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<p>This automatically sets the look-behind byte to the byte immediately
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following the end of the search. If the end of the search is at
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offset <code>haystack.len()</code>, then no look-behind byte is set.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.look_behind" class="method"><a class="src rightside" href="../../../src/regex_automata/util/start.rs.html#169-172">source</a><h4 class="code-header">pub fn <a href="#method.look_behind" class="fn">look_behind</a>(self, byte: <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.u8.html">u8</a>>) -> <a class="struct" href="struct.Config.html" title="struct regex_automata::util::start::Config">Config</a></h4></section></summary><div class="docblock"><p>Set the look-behind byte at the start of a search.</p>
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<p>Unless the search is intended to logically start at the beginning of a
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haystack, this should <em>always</em> be set to the byte immediately preceding
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the start of the search. If no look-behind byte is set, then the start
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configuration will assume it is at the beginning of the haystack. For
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example, the anchor <code>^</code> will match.</p>
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<p>The default is that no look-behind byte is set.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.anchored" class="method"><a class="src rightside" href="../../../src/regex_automata/util/start.rs.html#177-180">source</a><h4 class="code-header">pub fn <a href="#method.anchored" class="fn">anchored</a>(self, mode: <a class="enum" href="../../enum.Anchored.html" title="enum regex_automata::Anchored">Anchored</a>) -> <a class="struct" href="struct.Config.html" title="struct regex_automata::util::start::Config">Config</a></h4></section></summary><div class="docblock"><p>Set the anchored mode of a search.</p>
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<p>The default is an unanchored search.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.get_look_behind" class="method"><a class="src rightside" href="../../../src/regex_automata/util/start.rs.html#183-185">source</a><h4 class="code-header">pub fn <a href="#method.get_look_behind" class="fn">get_look_behind</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.u8.html">u8</a>></h4></section></summary><div class="docblock"><p>Return the look-behind byte in this configuration, if one exists.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.get_anchored" class="method"><a class="src rightside" href="../../../src/regex_automata/util/start.rs.html#188-190">source</a><h4 class="code-header">pub fn <a href="#method.get_anchored" class="fn">get_anchored</a>(&self) -> <a class="enum" href="../../enum.Anchored.html" title="enum regex_automata::Anchored">Anchored</a></h4></section></summary><div class="docblock"><p>Return the anchored mode in this configuration.</p>
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</div></details></div></details></div><h2 id="trait-implementations" class="section-header">Trait Implementations<a href="#trait-implementations" class="anchor">§</a></h2><div id="trait-implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-Clone-for-Config" class="impl"><a class="src rightside" href="../../../src/regex_automata/util/start.rs.html#120">source</a><a href="#impl-Clone-for-Config" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="struct.Config.html" title="struct regex_automata::util::start::Config">Config</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.clone" class="method trait-impl"><a class="src rightside" href="../../../src/regex_automata/util/start.rs.html#120">source</a><a href="#method.clone" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/clone/trait.Clone.html#tymethod.clone" class="fn">clone</a>(&self) -> <a class="struct" href="struct.Config.html" title="struct regex_automata::util::start::Config">Config</a></h4></section></summary><div class='docblock'>Returns a copy of the value. <a href="https://doc.rust-lang.org/1.80.0/core/clone/trait.Clone.html#tymethod.clone">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.clone_from" class="method trait-impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.80.0/src/core/clone.rs.html#169">source</a></span><a href="#method.clone_from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/clone/trait.Clone.html#method.clone_from" class="fn">clone_from</a>(&mut self, source: <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.reference.html">&Self</a>)</h4></section></summary><div class='docblock'>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/1.80.0/core/clone/trait.Clone.html#method.clone_from">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Debug-for-Config" class="impl"><a class="src rightside" href="../../../src/regex_automata/util/start.rs.html#120">source</a><a href="#impl-Debug-for-Config" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="struct.Config.html" title="struct regex_automata::util::start::Config">Config</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.fmt" class="method trait-impl"><a class="src rightside" href="../../../src/regex_automata/util/start.rs.html#120">source</a><a href="#method.fmt" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/fmt/trait.Debug.html#tymethod.fmt" class="fn">fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/1.80.0/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a><'_>) -> <a class="type" href="https://doc.rust-lang.org/1.80.0/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/1.80.0/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></div></details></div></details></div><h2 id="synthetic-implementations" class="section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor">§</a></h2><div id="synthetic-implementations-list"><section id="impl-Freeze-for-Config" class="impl"><a href="#impl-Freeze-for-Config" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Freeze.html" title="trait core::marker::Freeze">Freeze</a> for <a class="struct" href="struct.Config.html" title="struct regex_automata::util::start::Config">Config</a></h3></section><section id="impl-RefUnwindSafe-for-Config" class="impl"><a href="#impl-RefUnwindSafe-for-Config" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="struct.Config.html" title="struct regex_automata::util::start::Config">Config</a></h3></section><section id="impl-Send-for-Config" class="impl"><a href="#impl-Send-for-Config" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="struct.Config.html" title="struct regex_automata::util::start::Config">Config</a></h3></section><section id="impl-Sync-for-Config" class="impl"><a href="#impl-Sync-for-Config" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="struct.Config.html" title="struct regex_automata::util::start::Config">Config</a></h3></section><section id="impl-Unpin-for-Config" class="impl"><a href="#impl-Unpin-for-Config" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="struct.Config.html" title="struct regex_automata::util::start::Config">Config</a></h3></section><section id="impl-UnwindSafe-for-Config" class="impl"><a href="#impl-UnwindSafe-for-Config" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <a class="struct" href="struct.Config.html" title="struct regex_automata::util::start::Config">Config</a></h3></section></div><h2 id="blanket-implementations" class="section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor">§</a></h2><div id="blanket-implementations-list"><details class="toggle implementors-toggle"><summary><section id="impl-Any-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/any.rs.html#140">source</a><a href="#impl-Any-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T<div class="where">where
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T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/any.rs.html#141">source</a><a href="#method.type_id" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/any/trait.Any.html#tymethod.type_id" class="fn">type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/1.80.0/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/1.80.0/core/any/trait.Any.html#tymethod.type_id">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/borrow.rs.html#208">source</a><a href="#impl-Borrow%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T<div class="where">where
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T: ?<a class="trait" href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/borrow.rs.html#210">source</a><a href="#method.borrow" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/borrow/trait.Borrow.html#tymethod.borrow" class="fn">borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.reference.html">&T</a></h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.80.0/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/borrow.rs.html#216">source</a><a href="#impl-BorrowMut%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T<div class="where">where
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T: ?<a class="trait" href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/borrow.rs.html#217">source</a><a href="#method.borrow_mut" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fn">borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.reference.html">&mut T</a></h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.80.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/convert/mod.rs.html#765">source</a><a href="#impl-From%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/convert/mod.rs.html#768">source</a><a href="#method.from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(t: T) -> T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p>
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</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/convert/mod.rs.html#748-750">source</a><a href="#impl-Into%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T<div class="where">where
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U: <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/convert/mod.rs.html#758">source</a><a href="#method.into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/convert/trait.Into.html#tymethod.into" class="fn">into</a>(self) -> U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p>
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<p>That is, this conversion is whatever the implementation of
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<code><a href="https://doc.rust-lang.org/1.80.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for U</code> chooses to do.</p>
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</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-ToOwned-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/alloc/borrow.rs.html#83-85">source</a><a href="#impl-ToOwned-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.80.0/alloc/borrow/trait.ToOwned.html" title="trait alloc::borrow::ToOwned">ToOwned</a> for T<div class="where">where
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T: <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Owned" class="associatedtype trait-impl"><a href="#associatedtype.Owned" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.80.0/alloc/borrow/trait.ToOwned.html#associatedtype.Owned" class="associatedtype">Owned</a> = T</h4></section></summary><div class='docblock'>The resulting type after obtaining ownership.</div></details><details class="toggle method-toggle" open><summary><section id="method.to_owned" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/alloc/borrow.rs.html#88">source</a><a href="#method.to_owned" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/alloc/borrow/trait.ToOwned.html#tymethod.to_owned" class="fn">to_owned</a>(&self) -> T</h4></section></summary><div class='docblock'>Creates owned data from borrowed data, usually by cloning. <a href="https://doc.rust-lang.org/1.80.0/alloc/borrow/trait.ToOwned.html#tymethod.to_owned">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.clone_into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/alloc/borrow.rs.html#92">source</a><a href="#method.clone_into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/alloc/borrow/trait.ToOwned.html#method.clone_into" class="fn">clone_into</a>(&self, target: <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.reference.html">&mut T</a>)</h4></section></summary><div class='docblock'>Uses borrowed data to replace owned data, usually by cloning. <a href="https://doc.rust-lang.org/1.80.0/alloc/borrow/trait.ToOwned.html#method.clone_into">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/convert/mod.rs.html#805-807">source</a><a href="#impl-TryFrom%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T<div class="where">where
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U: <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl"><a href="#associatedtype.Error" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html#associatedtype.Error" class="associatedtype">Error</a> = <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/convert/mod.rs.html#812">source</a><a href="#method.try_from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html#tymethod.try_from" class="fn">try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/convert/mod.rs.html#790-792">source</a><a href="#impl-TryInto%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T<div class="where">where
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U: <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl"><a href="#associatedtype.Error-1" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryInto.html#associatedtype.Error" class="associatedtype">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/convert/mod.rs.html#797">source</a><a href="#method.try_into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryInto.html#tymethod.try_into" class="fn">try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details></div></section></div></main></body></html> |