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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="Trait implemented for an enum representing all tokens. You should never have to implement it manually, use the `#[derive(Logos)]` attribute on your enum."><title>Logos in logos - 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="logos" 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 trait"><!--[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><a class="logo-container" href="../logos/index.html"><img src="https://maciej.codes/kosz/logos.png" alt=""></a></nav><nav class="sidebar"><div class="sidebar-crate"><a class="logo-container" href="../logos/index.html"><img src="https://maciej.codes/kosz/logos.png" alt="logo"></a><h2><a href="../logos/index.html">logos</a><span class="version">0.14.0</span></h2></div><h2 class="location"><a href="#">Logos</a></h2><div class="sidebar-elems"><section><h3><a href="#required-associated-types">Required Associated Types</a></h3><ul class="block"><li><a href="#associatedtype.Error">Error</a></li><li><a href="#associatedtype.Extras">Extras</a></li><li><a href="#associatedtype.Source">Source</a></li></ul><h3><a href="#required-methods">Required Methods</a></h3><ul class="block"><li><a href="#tymethod.lex">lex</a></li></ul><h3><a href="#provided-methods">Provided Methods</a></h3><ul class="block"><li><a href="#method.lexer">lexer</a></li><li><a href="#method.lexer_with_extras">lexer_with_extras</a></li></ul><h3><a href="#object-safety">Object Safety</a></h3><h3><a href="#implementors">Implementors</a></h3></section><h2><a href="index.html">In crate logos</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>Trait <a href="index.html">logos</a>::<wbr><a class="trait" href="#">Logos</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/logos/lib.rs.html#44-79">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>−</span>]</button></span></div><pre class="rust item-decl"><code>pub trait Logos<'source>: <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> {
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type <a href="#associatedtype.Extras" class="associatedtype">Extras</a>;
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type <a href="#associatedtype.Source" class="associatedtype">Source</a>: <a class="trait" href="source/trait.Source.html" title="trait logos::source::Source">Source</a> + ?<a class="trait" href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + 'source;
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type <a href="#associatedtype.Error" class="associatedtype">Error</a>: <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/default/trait.Default.html" title="trait core::default::Default">Default</a> + <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> + <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a> + <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> + 'source;
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// Required method
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fn <a href="#tymethod.lex" class="fn">lex</a>(lexer: &mut <a class="struct" href="struct.Lexer.html" title="struct logos::Lexer">Lexer</a><'source, Self>);
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// Provided methods
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fn <a href="#method.lexer" class="fn">lexer</a>(source: &'source Self::<a class="associatedtype" href="trait.Logos.html#associatedtype.Source" title="type logos::Logos::Source">Source</a>) -> <a class="struct" href="struct.Lexer.html" title="struct logos::Lexer">Lexer</a><'source, Self> <a href="#" class="tooltip" data-notable-ty="Lexer<'source, Self>">ⓘ</a>
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<span class="where">where Self::<a class="associatedtype" href="trait.Logos.html#associatedtype.Extras" title="type logos::Logos::Extras">Extras</a>: <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/default/trait.Default.html" title="trait core::default::Default">Default</a></span> { ... }
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<span class="item-spacer"></span> fn <a href="#method.lexer_with_extras" class="fn">lexer_with_extras</a>(
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source: &'source Self::<a class="associatedtype" href="trait.Logos.html#associatedtype.Source" title="type logos::Logos::Source">Source</a>,
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extras: Self::<a class="associatedtype" href="trait.Logos.html#associatedtype.Extras" title="type logos::Logos::Extras">Extras</a>,
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) -> <a class="struct" href="struct.Lexer.html" title="struct logos::Lexer">Lexer</a><'source, Self> <a href="#" class="tooltip" data-notable-ty="Lexer<'source, Self>">ⓘ</a> { ... }
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}</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Trait implemented for an enum representing all tokens. You should never have
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to implement it manually, use the <code>#[derive(Logos)]</code> attribute on your enum.</p>
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</div></details><h2 id="required-associated-types" class="section-header">Required Associated Types<a href="#required-associated-types" class="anchor">§</a></h2><div class="methods"><details class="toggle" open><summary><section id="associatedtype.Extras" class="method"><a class="src rightside" href="../src/logos/lib.rs.html#47">source</a><h4 class="code-header">type <a href="#associatedtype.Extras" class="associatedtype">Extras</a></h4></section></summary><div class="docblock"><p>Associated type <code>Extras</code> for the particular lexer. This can be set using
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<code>#[logos(extras = MyExtras)]</code> and accessed inside callbacks.</p>
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</div></details><details class="toggle" open><summary><section id="associatedtype.Source" class="method"><a class="src rightside" href="../src/logos/lib.rs.html#52">source</a><h4 class="code-header">type <a href="#associatedtype.Source" class="associatedtype">Source</a>: <a class="trait" href="source/trait.Source.html" title="trait logos::source::Source">Source</a> + ?<a class="trait" href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + 'source</h4></section></summary><div class="docblock"><p>Source type this token can be lexed from. This will default to <code>str</code>,
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unless one of the defined patterns explicitly uses non-unicode byte values
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or byte slices, in which case that implementation will use <code>[u8]</code>.</p>
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</div></details><details class="toggle" open><summary><section id="associatedtype.Error" class="method"><a class="src rightside" href="../src/logos/lib.rs.html#56">source</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a>: <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/default/trait.Default.html" title="trait core::default::Default">Default</a> + <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> + <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a> + <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> + 'source</h4></section></summary><div class="docblock"><p>Error type returned by the lexer. This can be set using
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<code>#[logos(error = MyError)]</code>. Defaults to <code>()</code> if not set.</p>
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</div></details></div><h2 id="required-methods" class="section-header">Required Methods<a href="#required-methods" class="anchor">§</a></h2><div class="methods"><details class="toggle method-toggle" open><summary><section id="tymethod.lex" class="method"><a class="src rightside" href="../src/logos/lib.rs.html#60">source</a><h4 class="code-header">fn <a href="#tymethod.lex" class="fn">lex</a>(lexer: &mut <a class="struct" href="struct.Lexer.html" title="struct logos::Lexer">Lexer</a><'source, Self>)</h4></section></summary><div class="docblock"><p>The heart of Logos. Called by the <code>Lexer</code>. The implementation for this function
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is generated by the <code>logos-derive</code> crate.</p>
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</div></details></div><h2 id="provided-methods" class="section-header">Provided Methods<a href="#provided-methods" class="anchor">§</a></h2><div class="methods"><details class="toggle method-toggle" open><summary><section id="method.lexer" class="method"><a class="src rightside" href="../src/logos/lib.rs.html#64-69">source</a><h4 class="code-header">fn <a href="#method.lexer" class="fn">lexer</a>(source: &'source Self::<a class="associatedtype" href="trait.Logos.html#associatedtype.Source" title="type logos::Logos::Source">Source</a>) -> <a class="struct" href="struct.Lexer.html" title="struct logos::Lexer">Lexer</a><'source, Self> <a href="#" class="tooltip" data-notable-ty="Lexer<'source, Self>">ⓘ</a><div class="where">where
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Self::<a class="associatedtype" href="trait.Logos.html#associatedtype.Extras" title="type logos::Logos::Extras">Extras</a>: <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/default/trait.Default.html" title="trait core::default::Default">Default</a>,</div></h4></section></summary><div class="docblock"><p>Create a new instance of a <code>Lexer</code> that will produce tokens implementing
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this <code>Logos</code>.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.lexer_with_extras" class="method"><a class="src rightside" href="../src/logos/lib.rs.html#73-78">source</a><h4 class="code-header">fn <a href="#method.lexer_with_extras" class="fn">lexer_with_extras</a>(
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source: &'source Self::<a class="associatedtype" href="trait.Logos.html#associatedtype.Source" title="type logos::Logos::Source">Source</a>,
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extras: Self::<a class="associatedtype" href="trait.Logos.html#associatedtype.Extras" title="type logos::Logos::Extras">Extras</a>,
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) -> <a class="struct" href="struct.Lexer.html" title="struct logos::Lexer">Lexer</a><'source, Self> <a href="#" class="tooltip" data-notable-ty="Lexer<'source, Self>">ⓘ</a></h4></section></summary><div class="docblock"><p>Create a new instance of a <code>Lexer</code> with the provided <code>Extras</code> that will
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produce tokens implementing this <code>Logos</code>.</p>
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</div></details></div><h2 id="object-safety" class="section-header">Object Safety<a href="#object-safety" class="anchor">§</a></h2><div class="object-safety-info">This trait is <b>not</b> <a href="https://doc.rust-lang.org/1.80.0/reference/items/traits.html#object-safety">object safe</a>.</div><h2 id="implementors" class="section-header">Implementors<a href="#implementors" class="anchor">§</a></h2><div id="implementors-list"></div><script src="../trait.impl/logos/trait.Logos.js" async></script><script type="text/json" id="notable-traits-data">{"Lexer<'source, Self>":"<h3>Notable traits for <code><a class=\"struct\" href=\"struct.Lexer.html\" title=\"struct logos::Lexer\">Lexer</a><'source, Token></code></h3><pre><code><div class=\"where\">impl<'source, Token> <a class=\"trait\" href=\"https://doc.rust-lang.org/1.80.0/core/iter/traits/iterator/trait.Iterator.html\" title=\"trait core::iter::traits::iterator::Iterator\">Iterator</a> for <a class=\"struct\" href=\"struct.Lexer.html\" title=\"struct logos::Lexer\">Lexer</a><'source, Token><div class=\"where\">where\n Token: <a class=\"trait\" href=\"trait.Logos.html\" title=\"trait logos::Logos\">Logos</a><'source>,</div></div><div class=\"where\"> type <a href=\"https://doc.rust-lang.org/1.80.0/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item\" class=\"associatedtype\">Item</a> = <a class=\"enum\" href=\"https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html\" title=\"enum core::result::Result\">Result</a><Token, Token::<a class=\"associatedtype\" href=\"trait.Logos.html#associatedtype.Error\" title=\"type logos::Logos::Error\">Error</a>>;</div>"}</script></section></div></main></body></html> |