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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="Recognize the input slice up to the first occurrence of a literal."><title>take_until in winnow::token - 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="winnow" data-themes="" data-resource-suffix="" data-rustdoc-version="1.80.0 (051478957 2024-07-21)" data-channel="1.80.0" data-search-js="search-d52510db62a78183.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../../static.files/storage-118b08c4c78b968e.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-20a3ad099b048cf2.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-df360f571f6edeae.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc fn"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle" title="show sidebar"></button></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../winnow/index.html">winnow</a><span class="version">0.6.16</span></h2></div><div class="sidebar-elems"><h2><a href="index.html">In winnow::token</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>Function <a href="../index.html">winnow</a>::<wbr><a href="index.html">token</a>::<wbr><a class="fn" href="#">take_until</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/winnow/token/mod.rs.html#979-1018">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>−</span>]</button></span></div><pre class="rust item-decl"><code>pub fn take_until<Literal, Input, Error>(
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occurrences: impl <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="struct" href="../stream/struct.Range.html" title="struct winnow::stream::Range">Range</a>>,
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literal: Literal,
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) -> impl <a class="trait" href="../trait.Parser.html" title="trait winnow::Parser">Parser</a><Input, <Input as <a class="trait" href="../stream/trait.Stream.html" title="trait winnow::stream::Stream">Stream</a>>::<a class="associatedtype" href="../stream/trait.Stream.html#associatedtype.Slice" title="type winnow::stream::Stream::Slice">Slice</a>, Error><div class="where">where
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Input: <a class="trait" href="../stream/trait.StreamIsPartial.html" title="trait winnow::stream::StreamIsPartial">StreamIsPartial</a> + <a class="trait" href="../stream/trait.Stream.html" title="trait winnow::stream::Stream">Stream</a> + <a class="trait" href="../stream/trait.FindSlice.html" title="trait winnow::stream::FindSlice">FindSlice</a><Literal>,
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Literal: <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,
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Error: <a class="trait" href="../error/trait.ParserError.html" title="trait winnow::error::ParserError">ParserError</a><Input>,</div></code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Recognize the input slice up to the first occurrence of a <a href="fn.literal.html" title="fn winnow::token::literal">literal</a>.</p>
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<p>Feature <code>simd</code> will enable the use of <a href="https://docs.rs/memchr/latest/memchr/"><code>memchr</code></a>.</p>
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<p>It doesn’t consume the literal.</p>
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<p><em>Complete version</em>: It will return <code>Err(ErrMode::Backtrack(InputError::new(_, ErrorKind::Slice)))</code>
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if the literal wasn’t met.</p>
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<p><em>[Partial version][crate::_topic::partial]</em>: will return a <code>ErrMode::Incomplete(Needed::new(N))</code> if the input doesn’t
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contain the literal or if the input is smaller than the literal.</p>
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<p>See also</p>
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<ul>
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<li><a href="fn.take_till.html" title="fn winnow::token::take_till"><code>take_till</code></a> for recognizing up-to a <a href="../stream/trait.ContainsToken.html" title="trait winnow::stream::ContainsToken">set of tokens</a></li>
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<li><a href="../combinator/fn.repeat_till.html" title="fn winnow::combinator::repeat_till"><code>repeat_till</code></a> with <a href="../trait.Parser.html#method.take" title="method winnow::Parser::take"><code>Parser::take</code></a> for taking tokens up to a <a href="../trait.Parser.html" title="trait winnow::Parser"><code>Parser</code></a></li>
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</ul>
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<h2 id="effective-signature"><a class="doc-anchor" href="#effective-signature">§</a>Effective Signature</h2>
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<p>Assuming you are parsing a <code>&str</code> <a href="../stream/trait.Stream.html" title="trait winnow::stream::Stream">Stream</a> with <code>0..</code> or <code>1..</code> <a href="../stream/struct.Range.html" title="struct winnow::stream::Range">ranges</a>:</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">pub fn </span>take_until(occurrences: RangeFrom<usize>, literal: <span class="kw-2">&</span>str) -> <span class="kw">impl </span>Parser<<span class="kw-2">&</span>str, <span class="kw-2">&</span>str, ContextError></code></pre></div>
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<h2 id="example"><a class="doc-anchor" href="#example">§</a>Example</h2>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>winnow::token::take_until;
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<span class="kw">fn </span>until_eof(s: <span class="kw-2">&</span>str) -> IResult<<span class="kw-2">&</span>str, <span class="kw-2">&</span>str> {
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take_until(<span class="number">0</span>.., <span class="string">"eof"</span>).parse_peek(s)
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}
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<span class="macro">assert_eq!</span>(until_eof(<span class="string">"hello, worldeof"</span>), <span class="prelude-val">Ok</span>((<span class="string">"eof"</span>, <span class="string">"hello, world"</span>)));
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<span class="macro">assert_eq!</span>(until_eof(<span class="string">"hello, world"</span>), <span class="prelude-val">Err</span>(ErrMode::Backtrack(InputError::new(<span class="string">"hello, world"</span>, ErrorKind::Slice))));
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<span class="macro">assert_eq!</span>(until_eof(<span class="string">""</span>), <span class="prelude-val">Err</span>(ErrMode::Backtrack(InputError::new(<span class="string">""</span>, ErrorKind::Slice))));
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<span class="macro">assert_eq!</span>(until_eof(<span class="string">"1eof2eof"</span>), <span class="prelude-val">Ok</span>((<span class="string">"eof2eof"</span>, <span class="string">"1"</span>)));</code></pre></div>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>winnow::token::take_until;
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<span class="kw">fn </span>until_eof(s: Partial<<span class="kw-2">&</span>str>) -> IResult<Partial<<span class="kw-2">&</span>str>, <span class="kw-2">&</span>str> {
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take_until(<span class="number">0</span>.., <span class="string">"eof"</span>).parse_peek(s)
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}
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<span class="macro">assert_eq!</span>(until_eof(Partial::new(<span class="string">"hello, worldeof"</span>)), <span class="prelude-val">Ok</span>((Partial::new(<span class="string">"eof"</span>), <span class="string">"hello, world"</span>)));
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<span class="macro">assert_eq!</span>(until_eof(Partial::new(<span class="string">"hello, world"</span>)), <span class="prelude-val">Err</span>(ErrMode::Incomplete(Needed::Unknown)));
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<span class="macro">assert_eq!</span>(until_eof(Partial::new(<span class="string">"hello, worldeo"</span>)), <span class="prelude-val">Err</span>(ErrMode::Incomplete(Needed::Unknown)));
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<span class="macro">assert_eq!</span>(until_eof(Partial::new(<span class="string">"1eof2eof"</span>)), <span class="prelude-val">Ok</span>((Partial::new(<span class="string">"eof2eof"</span>), <span class="string">"1"</span>)));</code></pre></div>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>winnow::token::take_until;
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<span class="kw">fn </span>until_eof(s: <span class="kw-2">&</span>str) -> IResult<<span class="kw-2">&</span>str, <span class="kw-2">&</span>str> {
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take_until(<span class="number">1</span>.., <span class="string">"eof"</span>).parse_peek(s)
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}
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<span class="macro">assert_eq!</span>(until_eof(<span class="string">"hello, worldeof"</span>), <span class="prelude-val">Ok</span>((<span class="string">"eof"</span>, <span class="string">"hello, world"</span>)));
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<span class="macro">assert_eq!</span>(until_eof(<span class="string">"hello, world"</span>), <span class="prelude-val">Err</span>(ErrMode::Backtrack(InputError::new(<span class="string">"hello, world"</span>, ErrorKind::Slice))));
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<span class="macro">assert_eq!</span>(until_eof(<span class="string">""</span>), <span class="prelude-val">Err</span>(ErrMode::Backtrack(InputError::new(<span class="string">""</span>, ErrorKind::Slice))));
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<span class="macro">assert_eq!</span>(until_eof(<span class="string">"1eof2eof"</span>), <span class="prelude-val">Ok</span>((<span class="string">"eof2eof"</span>, <span class="string">"1"</span>)));
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<span class="macro">assert_eq!</span>(until_eof(<span class="string">"eof"</span>), <span class="prelude-val">Err</span>(ErrMode::Backtrack(InputError::new(<span class="string">"eof"</span>, ErrorKind::Slice))));</code></pre></div>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>winnow::token::take_until;
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<span class="kw">fn </span>until_eof(s: Partial<<span class="kw-2">&</span>str>) -> IResult<Partial<<span class="kw-2">&</span>str>, <span class="kw-2">&</span>str> {
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take_until(<span class="number">1</span>.., <span class="string">"eof"</span>).parse_peek(s)
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}
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<span class="macro">assert_eq!</span>(until_eof(Partial::new(<span class="string">"hello, worldeof"</span>)), <span class="prelude-val">Ok</span>((Partial::new(<span class="string">"eof"</span>), <span class="string">"hello, world"</span>)));
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<span class="macro">assert_eq!</span>(until_eof(Partial::new(<span class="string">"hello, world"</span>)), <span class="prelude-val">Err</span>(ErrMode::Incomplete(Needed::Unknown)));
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<span class="macro">assert_eq!</span>(until_eof(Partial::new(<span class="string">"hello, worldeo"</span>)), <span class="prelude-val">Err</span>(ErrMode::Incomplete(Needed::Unknown)));
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<span class="macro">assert_eq!</span>(until_eof(Partial::new(<span class="string">"1eof2eof"</span>)), <span class="prelude-val">Ok</span>((Partial::new(<span class="string">"eof2eof"</span>), <span class="string">"1"</span>)));
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<span class="macro">assert_eq!</span>(until_eof(Partial::new(<span class="string">"eof"</span>)), <span class="prelude-val">Err</span>(ErrMode::Backtrack(InputError::new(Partial::new(<span class="string">"eof"</span>), ErrorKind::Slice))));</code></pre></div>
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</div></details></section></div></main></body></html> |