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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="Converts a byte-level input to a bit-level input"><title>bits in winnow::binary::bits - 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">0.6.18</span></h2></div><div class="sidebar-elems"><h2><a href="index.html">In winnow::binary::bits</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">binary</a>::<wbr><a href="index.html">bits</a>::<wbr><a class="fn" href="#">bits</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/binary/bits/mod.rs.html#49-79">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>−</span>]</button></span></div><pre class="rust item-decl"><code>pub fn bits<Input, Output, BitError, ByteError, ParseNext>(
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parser: ParseNext,
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) -> impl <a class="trait" href="../../trait.Parser.html" title="trait winnow::Parser">Parser</a><Input, Output, ByteError><div class="where">where
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BitError: <a class="trait" href="../../error/trait.ParserError.html" title="trait winnow::error::ParserError">ParserError</a><(Input, <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.usize.html">usize</a>)> + <a class="trait" href="../../error/trait.ErrorConvert.html" title="trait winnow::error::ErrorConvert">ErrorConvert</a><ByteError>,
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ByteError: <a class="trait" href="../../error/trait.ParserError.html" title="trait winnow::error::ParserError">ParserError</a><Input>,
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(Input, <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.usize.html">usize</a>): <a class="trait" href="../../stream/trait.Stream.html" title="trait winnow::stream::Stream">Stream</a>,
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Input: <a class="trait" href="../../stream/trait.Stream.html" title="trait winnow::stream::Stream">Stream</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>,
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ParseNext: <a class="trait" href="../../trait.Parser.html" title="trait winnow::Parser">Parser</a><(Input, <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.usize.html">usize</a>), Output, BitError>,</div></code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Converts a byte-level input to a bit-level input</p>
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<p>See <a href="fn.bytes.html" title="fn winnow::binary::bits::bytes"><code>bytes</code></a> to convert it back.</p>
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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::prelude::<span class="kw-2">*</span>;
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<span class="kw">use </span>winnow::Bytes;
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<span class="kw">use </span>winnow::binary::bits::{bits, take};
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<span class="kw">use </span>winnow::error::InputError;
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<span class="kw">type </span>Stream<<span class="lifetime">'i</span>> = <span class="kw-2">&</span><span class="lifetime">'i </span>Bytes;
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<span class="kw">fn </span>stream(b: <span class="kw-2">&</span>[u8]) -> Stream<<span class="lifetime">'_</span>> {
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Bytes::new(b)
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}
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<span class="kw">fn </span>parse(input: Stream<<span class="lifetime">'_</span>>) -> IResult<Stream<<span class="lifetime">'_</span>>, (u8, u8)> {
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bits::<<span class="kw">_</span>, <span class="kw">_</span>, InputError<(<span class="kw">_</span>, usize)>, <span class="kw">_</span>, <span class="kw">_</span>>((take(<span class="number">4usize</span>), take(<span class="number">8usize</span>))).parse_peek(input)
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}
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<span class="kw">let </span>input = stream(<span class="kw-2">&</span>[<span class="number">0x12</span>, <span class="number">0x34</span>, <span class="number">0xff</span>, <span class="number">0xff</span>]);
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<span class="kw">let </span>output = parse(input).expect(<span class="string">"We take 1.5 bytes and the input is longer than 2 bytes"</span>);
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<span class="comment">// The first byte is consumed, the second byte is partially consumed and dropped.
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</span><span class="kw">let </span>remaining = output.<span class="number">0</span>;
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<span class="macro">assert_eq!</span>(remaining, stream(<span class="kw-2">&</span>[<span class="number">0xff</span>, <span class="number">0xff</span>]));
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<span class="kw">let </span>parsed = output.<span class="number">1</span>;
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<span class="macro">assert_eq!</span>(parsed.<span class="number">0</span>, <span class="number">0x01</span>);
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<span class="macro">assert_eq!</span>(parsed.<span class="number">1</span>, <span class="number">0x23</span>);</code></pre></div>
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</div></details></section></div></main></body></html> |