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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="List of parsers and combinators"><title>winnow::combinator - Rust</title><script> if (window.location.protocol !== "file:") document.write(`<link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2">`)</script><link rel="stylesheet" href="../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../static.files/rustdoc-e935ef01ae1c1829.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="1.78.0 (9b00956e5 2024-04-29)" data-channel="1.78.0" data-search-js="search-42d8da7a6b9792c2.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../../static.files/storage-4c98445ec4002617.js"></script><script defer src="../sidebar-items.js"></script><script defer src="../../static.files/main-12cf3b4f4f9dc36d.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-04d5337699b92874.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-16x16-8b506e7a72182f1c.png"><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 mod"><!--[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">0.6.8</span></h2></div><h2 class="location"><a href="#">Module combinator</a></h2><div class="sidebar-elems"><section><ul class="block"><li><a href="#macros">Macros</a></li><li><a href="#structs">Structs</a></li><li><a href="#traits">Traits</a></li><li><a href="#functions">Functions</a></li></ul></section><h2><a href="../index.html">In crate winnow</a></h2></div></nav><div class="sidebar-resizer"></div>
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<main><div class="width-limiter"><nav class="sub"><form class="search-form"><span></span><div id="sidebar-button" tabindex="-1"><a href="../../winnow/all.html" title="show sidebar"></a></div><input class="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"><div id="help-button" tabindex="-1"><a href="../../help.html" title="help">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1>Module <a href="../index.html">winnow</a>::<wbr><a class="mod" href="#">combinator</a><button id="copy-path" title="Copy item path to clipboard"><img src="../../static.files/clipboard-7571035ce49a181d.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="src" href="../../src/winnow/combinator/mod.rs.html#1-176">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>−</span>]</button></span></div><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><h2 id="list-of-parsers-and-combinators"><a class="doc-anchor" href="#list-of-parsers-and-combinators">§</a>List of parsers and combinators</h2>
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<p><strong>Note</strong>: this list is meant to provide a nicer way to find a parser than reading through the documentation on docs.rs. Function combinators are organized in module so they are a bit easier to find.</p>
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<h3 id="basic-elements"><a class="doc-anchor" href="#basic-elements">§</a>Basic elements</h3>
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<p>Those are used to recognize the lowest level elements of your grammar, like, “here is a dot”, or “here is an big endian integer”.</p>
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<div><table><thead><tr><th>combinator</th><th>usage</th><th>input</th><th>new input</th><th>output</th><th>comment</th></tr></thead><tbody>
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<tr><td><a href="../token/fn.one_of.html" title="fn winnow::token::one_of"><code>one_of</code></a></td><td><code>one_of(['a', 'b', 'c'])</code></td><td><code>"abc"</code></td><td><code>"bc"</code></td><td><code>Ok('a')</code></td><td>Matches one of the provided <a href="../stream/trait.ContainsToken.html" title="trait winnow::stream::ContainsToken">set of tokens</a> (works with non ASCII characters too)</td></tr>
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<tr><td><a href="../token/fn.none_of.html" title="fn winnow::token::none_of"><code>none_of</code></a></td><td><code>none_of(['a', 'b', 'c'])</code></td><td><code>"xyab"</code></td><td><code>"yab"</code></td><td><code>Ok('x')</code></td><td>Matches anything but one of the provided <a href="../stream/trait.ContainsToken.html" title="trait winnow::stream::ContainsToken">set of tokens</a></td></tr>
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<tr><td><a href="../token/fn.literal.html" title="fn winnow::token::literal"><code>literal</code></a></td><td><code>"hello"</code></td><td><code>"hello world"</code></td><td><code>" world"</code></td><td><code>Ok("hello")</code></td><td>Recognizes a specific suite of characters or bytes (see also <a href="../ascii/struct.Caseless.html" title="struct winnow::ascii::Caseless"><code>Caseless</code></a>)</td></tr>
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<tr><td><a href="../token/fn.take.html" title="fn winnow::token::take"><code>take</code></a></td><td><code>take(4)</code></td><td><code>"hello"</code></td><td><code>"o"</code></td><td><code>Ok("hell")</code></td><td>Takes a specific number of bytes or characters</td></tr>
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<tr><td><a href="../token/fn.take_while.html" title="fn winnow::token::take_while"><code>take_while</code></a></td><td><code>take_while(0.., is_alphabetic)</code></td><td><code>"abc123"</code></td><td><code>"123"</code></td><td><code>Ok("abc")</code></td><td>Returns the longest slice of bytes or characters for which the provided <a href="../stream/trait.ContainsToken.html" title="trait winnow::stream::ContainsToken">set of tokens</a> matches.</td></tr>
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<tr><td><a href="../token/fn.take_till.html" title="fn winnow::token::take_till"><code>take_till</code></a></td><td><code>take_till(0.., is_alphabetic)</code></td><td><code>"123abc"</code></td><td><code>"abc"</code></td><td><code>Ok("123")</code></td><td>Returns a slice of bytes or characters until the provided <a href="../stream/trait.ContainsToken.html" title="trait winnow::stream::ContainsToken">set of tokens</a> matches. This is the reverse behaviour from <code>take_while</code>: <code>take_till(f)</code> is equivalent to <code>take_while(0.., \|c\| !f(c))</code></td></tr>
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<tr><td><a href="../token/fn.take_until.html" title="fn winnow::token::take_until"><code>take_until</code></a></td><td><code>take_until(0.., "world")</code></td><td><code>"Hello world"</code></td><td><code>"world"</code></td><td><code>Ok("Hello ")</code></td><td>Returns a slice of bytes or characters until the provided <a href="../token/fn.literal.html" title="fn winnow::token::literal">literal</a> is found.</td></tr>
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</tbody></table>
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</div><h3 id="choice-combinators"><a class="doc-anchor" href="#choice-combinators">§</a>Choice combinators</h3><div><table><thead><tr><th>combinator</th><th>usage</th><th>input</th><th>new input</th><th>output</th><th>comment</th></tr></thead><tbody>
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<tr><td><a href="fn.alt.html" title="fn winnow::combinator::alt"><code>alt</code></a></td><td><code>alt(("ab", "cd"))</code></td><td><code>"cdef"</code></td><td><code>"ef"</code></td><td><code>Ok("cd")</code></td><td>Try a list of parsers and return the result of the first successful one</td></tr>
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<tr><td><a href="macro.dispatch.html" title="macro winnow::combinator::dispatch"><code>dispatch</code></a></td><td>-</td><td>-</td><td>-</td><td>-</td><td><code>match</code> for parsers</td></tr>
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<tr><td><a href="fn.permutation.html" title="fn winnow::combinator::permutation"><code>permutation</code></a></td><td><code>permutation(("ab", "cd", "12"))</code></td><td><code>"cd12abc"</code></td><td><code>"c"</code></td><td><code>Ok(("ab", "cd", "12"))</code></td><td>Succeeds when all its child parser have succeeded, whatever the order</td></tr>
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</tbody></table>
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</div><h3 id="sequence-combinators"><a class="doc-anchor" href="#sequence-combinators">§</a>Sequence combinators</h3><div><table><thead><tr><th>combinator</th><th>usage</th><th>input</th><th>new input</th><th>output</th><th>comment</th></tr></thead><tbody>
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<tr><td><a href="../trait.Parser.html" title="trait winnow::Parser"><code>(...)</code> (tuples)</a></td><td><code>("ab", "XY", take(1))</code></td><td><code>"abXYZ!"</code></td><td><code>"!"</code></td><td><code>Ok(("ab", "XY", "Z"))</code></td><td>Chains parsers and assemble the sub results in a tuple. You can use as many child parsers as you can put elements in a tuple</td></tr>
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<tr><td><a href="macro.seq.html" title="macro winnow::combinator::seq"><code>seq!</code></a></td><td><code>seq!(_: '(', take(2), _: ')')</code></td><td><code>"(ab)cd"</code></td><td><code>"cd"</code></td><td><code>Ok("ab")</code></td><td></td></tr>
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<tr><td><a href="fn.delimited.html" title="fn winnow::combinator::delimited"><code>delimited</code></a></td><td><code>delimited('(', take(2), ')')</code></td><td><code>"(ab)cd"</code></td><td><code>"cd"</code></td><td><code>Ok("ab")</code></td><td></td></tr>
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<tr><td><a href="fn.preceded.html" title="fn winnow::combinator::preceded"><code>preceded</code></a></td><td><code>preceded("ab", "XY")</code></td><td><code>"abXYZ"</code></td><td><code>"Z"</code></td><td><code>Ok("XY")</code></td><td></td></tr>
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<tr><td><a href="fn.terminated.html" title="fn winnow::combinator::terminated"><code>terminated</code></a></td><td><code>terminated("ab", "XY")</code></td><td><code>"abXYZ"</code></td><td><code>"Z"</code></td><td><code>Ok("ab")</code></td><td></td></tr>
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<tr><td><a href="fn.separated_pair.html" title="fn winnow::combinator::separated_pair"><code>separated_pair</code></a></td><td><code>separated_pair("hello", ',', "world")</code></td><td><code>"hello,world!"</code></td><td><code>"!"</code></td><td><code>Ok(("hello", "world"))</code></td><td></td></tr>
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</tbody></table>
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</div><h3 id="applying-a-parser-multiple-times"><a class="doc-anchor" href="#applying-a-parser-multiple-times">§</a>Applying a parser multiple times</h3><div><table><thead><tr><th>combinator</th><th>usage</th><th>input</th><th>new input</th><th>output</th><th>comment</th></tr></thead><tbody>
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<tr><td><a href="fn.repeat.html" title="fn winnow::combinator::repeat"><code>repeat</code></a></td><td><code>repeat(1..=3, "ab")</code></td><td><code>"ababc"</code></td><td><code>"c"</code></td><td><code>Ok(vec!["ab", "ab"])</code></td><td>Applies the parser between m and n times (n included) and returns the list of results in a Vec</td></tr>
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<tr><td><a href="fn.repeat_till.html" title="fn winnow::combinator::repeat_till"><code>repeat_till</code></a></td><td><code>repeat_till(0.., "ab", "ef")</code></td><td><code>"ababefg"</code></td><td><code>"g"</code></td><td><code>Ok((vec!["ab", "ab"], "ef"))</code></td><td>Applies the first parser until the second applies. Returns a tuple containing the list of results from the first in a Vec and the result of the second</td></tr>
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<tr><td><a href="fn.separated.html" title="fn winnow::combinator::separated"><code>separated</code></a></td><td><code>separated(1..=3, "ab", ",")</code></td><td><code>"ab,ab,ab."</code></td><td><code>"."</code></td><td><code>Ok(vec!["ab", "ab", "ab"])</code></td><td>Applies the parser and separator between m and n times (n included) and returns the list of results in a Vec</td></tr>
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<tr><td><a href="struct.Repeat.html#method.fold" title="method winnow::combinator::Repeat::fold"><code>Repeat::fold</code></a></td><td>`repeat(1..=2, be_u8).fold(</td><td></td><td>0,</td><td>acc, item</td><td>acc + item)`</td></tr>
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</tbody></table>
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</div><h3 id="partial-related"><a class="doc-anchor" href="#partial-related">§</a>Partial related</h3>
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<ul>
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<li><a href="fn.eof.html" title="fn winnow::combinator::eof"><code>eof</code></a>: Returns its input if it is at the end of input data</li>
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<li><a href="../trait.Parser.html#method.complete_err" title="method winnow::Parser::complete_err"><code>Parser::complete_err</code></a>: Replaces an <code>Incomplete</code> returned by the child parser with an <code>Backtrack</code></li>
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</ul>
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<h3 id="modifiers"><a class="doc-anchor" href="#modifiers">§</a>Modifiers</h3>
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<ul>
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<li><a href="fn.cond.html" title="fn winnow::combinator::cond"><code>cond</code></a>: Conditional combinator. Wraps another parser and calls it if the condition is met</li>
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<li><a href="../trait.Parser.html#method.flat_map" title="method winnow::Parser::flat_map"><code>Parser::flat_map</code></a>: method to map a new parser from the output of the first parser, then apply that parser over the rest of the input</li>
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<li><a href="../trait.Parser.html#method.value" title="method winnow::Parser::value"><code>Parser::value</code></a>: method to replace the result of a parser</li>
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<li><a href="../trait.Parser.html#method.default_value" title="method winnow::Parser::default_value"><code>Parser::default_value</code></a>: method to replace the result of a parser</li>
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<li><a href="../trait.Parser.html#method.void" title="method winnow::Parser::void"><code>Parser::void</code></a>: method to discard the result of a parser</li>
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<li><a href="../trait.Parser.html#method.map" title="method winnow::Parser::map"><code>Parser::map</code></a>: method to map a function on the result of a parser</li>
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<li><a href="../trait.Parser.html#method.and_then" title="method winnow::Parser::and_then"><code>Parser::and_then</code></a>: Applies a second parser over the output of the first one</li>
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<li><a href="../trait.Parser.html#method.verify_map" title="method winnow::Parser::verify_map"><code>Parser::verify_map</code></a>: Maps a function returning an <code>Option</code> on the output of a parser</li>
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<li><a href="../trait.Parser.html#method.try_map" title="method winnow::Parser::try_map"><code>Parser::try_map</code></a>: Maps a function returning a <code>Result</code> on the output of a parser</li>
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<li><a href="../trait.Parser.html#method.parse_to" title="method winnow::Parser::parse_to"><code>Parser::parse_to</code></a>: Apply <a href="https://doc.rust-lang.org/1.78.0/core/str/traits/trait.FromStr.html" title="trait core::str::traits::FromStr"><code>std::str::FromStr</code></a> to the output of the parser</li>
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<li><a href="fn.not.html" title="fn winnow::combinator::not"><code>not</code></a>: Returns a result only if the embedded parser returns <code>Backtrack</code> or <code>Incomplete</code>. Does not consume the input</li>
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<li><a href="fn.opt.html" title="fn winnow::combinator::opt"><code>opt</code></a>: Make the underlying parser optional</li>
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<li><a href="fn.peek.html" title="fn winnow::combinator::peek"><code>peek</code></a>: Returns a result without consuming the input</li>
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<li><a href="../trait.Parser.html#method.recognize" title="method winnow::Parser::recognize"><code>Parser::recognize</code></a>: If the child parser was successful, return the consumed input as the produced value</li>
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<li><a href="../trait.Parser.html#method.with_recognized" title="method winnow::Parser::with_recognized"><code>Parser::with_recognized</code></a>: If the child parser was successful, return a tuple of the consumed input and the produced output.</li>
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<li><a href="../trait.Parser.html#method.span" title="method winnow::Parser::span"><code>Parser::span</code></a>: If the child parser was successful, return the location of the consumed input as the produced value</li>
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<li><a href="../trait.Parser.html#method.with_span" title="method winnow::Parser::with_span"><code>Parser::with_span</code></a>: If the child parser was successful, return a tuple of the location of the consumed input and the produced output.</li>
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<li><a href="../trait.Parser.html#method.verify" title="method winnow::Parser::verify"><code>Parser::verify</code></a>: Returns the result of the child parser if it satisfies a verification function</li>
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</ul>
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<h3 id="error-management-and-debugging"><a class="doc-anchor" href="#error-management-and-debugging">§</a>Error management and debugging</h3>
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<ul>
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<li><a href="fn.cut_err.html" title="fn winnow::combinator::cut_err"><code>cut_err</code></a>: Commit the parse result, disallowing alternative parsers from being attempted</li>
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<li><a href="fn.backtrack_err.html" title="fn winnow::combinator::backtrack_err"><code>backtrack_err</code></a>: Attempts a parse, allowing alternative parsers to be attempted despite
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use of <code>cut_err</code></li>
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<li><a href="../trait.Parser.html#method.context" title="method winnow::Parser::context"><code>Parser::context</code></a>: Add context to the error if the parser fails</li>
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<li><a href="fn.trace.html" title="fn winnow::combinator::trace"><code>trace</code></a>: Print the parse state with the <code>debug</code> feature flag</li>
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<li><a href="fn.todo.html" title="fn winnow::combinator::todo"><code>todo()</code></a>: Placeholder parser</li>
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</ul>
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<h3 id="remaining-combinators"><a class="doc-anchor" href="#remaining-combinators">§</a>Remaining combinators</h3>
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<ul>
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<li><a href="fn.empty.html" title="fn winnow::combinator::empty"><code>empty</code></a>: Returns a value without consuming any input, always succeeds</li>
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<li><a href="fn.fail.html" title="fn winnow::combinator::fail"><code>fail</code></a>: Inversion of <a href="fn.empty.html" title="fn winnow::combinator::empty"><code>empty</code></a>. Always fails.</li>
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<li><a href="../trait.Parser.html#method.by_ref" title="method winnow::Parser::by_ref"><code>Parser::by_ref</code></a>: Allow moving <code>&mut impl Parser</code> into other parsers</li>
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</ul>
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<h3 id="text-parsing"><a class="doc-anchor" href="#text-parsing">§</a>Text parsing</h3>
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<ul>
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<li>
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<p><a href="../token/fn.any.html" title="fn winnow::token::any"><code>any</code></a>: Matches one token</p>
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</li>
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<li>
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<p><a href="../ascii/fn.tab.html" title="fn winnow::ascii::tab"><code>tab</code></a>: Matches a tab character <code>\t</code></p>
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</li>
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<li>
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<p><a href="../ascii/fn.crlf.html" title="fn winnow::ascii::crlf"><code>crlf</code></a>: Recognizes the string <code>\r\n</code></p>
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</li>
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<li>
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<p><a href="../ascii/fn.line_ending.html" title="fn winnow::ascii::line_ending"><code>line_ending</code></a>: Recognizes an end of line (both <code>\n</code> and <code>\r\n</code>)</p>
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</li>
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<li>
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<p><a href="../ascii/fn.newline.html" title="fn winnow::ascii::newline"><code>newline</code></a>: Matches a newline character <code>\n</code></p>
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</li>
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<li>
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<p><a href="../ascii/fn.till_line_ending.html" title="fn winnow::ascii::till_line_ending"><code>till_line_ending</code></a>: Recognizes a string of any char except <code>\r</code> or <code>\n</code></p>
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</li>
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<li>
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<p><a href="fn.rest.html" title="fn winnow::combinator::rest"><code>rest</code></a>: Return the remaining input</p>
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</li>
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<li>
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<p><a href="../ascii/fn.alpha0.html" title="fn winnow::ascii::alpha0"><code>alpha0</code></a>: Recognizes zero or more lowercase and uppercase alphabetic characters: <code>[a-zA-Z]</code>. <a href="../ascii/fn.alpha1.html" title="fn winnow::ascii::alpha1"><code>alpha1</code></a> does the same but returns at least one character</p>
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</li>
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<li>
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<p><a href="../ascii/fn.alphanumeric0.html" title="fn winnow::ascii::alphanumeric0"><code>alphanumeric0</code></a>: Recognizes zero or more numerical and alphabetic characters: <code>[0-9a-zA-Z]</code>. <a href="../ascii/fn.alphanumeric1.html" title="fn winnow::ascii::alphanumeric1"><code>alphanumeric1</code></a> does the same but returns at least one character</p>
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</li>
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<li>
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<p><a href="../ascii/fn.space0.html" title="fn winnow::ascii::space0"><code>space0</code></a>: Recognizes zero or more spaces and tabs. <a href="../ascii/fn.space1.html" title="fn winnow::ascii::space1"><code>space1</code></a> does the same but returns at least one character</p>
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</li>
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<li>
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<p><a href="../ascii/fn.multispace0.html" title="fn winnow::ascii::multispace0"><code>multispace0</code></a>: Recognizes zero or more spaces, tabs, carriage returns and line feeds. <a href="../ascii/fn.multispace1.html" title="fn winnow::ascii::multispace1"><code>multispace1</code></a> does the same but returns at least one character</p>
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</li>
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<li>
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<p><a href="../ascii/fn.digit0.html" title="fn winnow::ascii::digit0"><code>digit0</code></a>: Recognizes zero or more numerical characters: <code>[0-9]</code>. <a href="../ascii/fn.digit1.html" title="fn winnow::ascii::digit1"><code>digit1</code></a> does the same but returns at least one character</p>
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</li>
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<li>
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||
<p><a href="../ascii/fn.hex_digit0.html" title="fn winnow::ascii::hex_digit0"><code>hex_digit0</code></a>: Recognizes zero or more hexadecimal numerical characters: <code>[0-9A-Fa-f]</code>. <a href="../ascii/fn.hex_digit1.html" title="fn winnow::ascii::hex_digit1"><code>hex_digit1</code></a> does the same but returns at least one character</p>
|
||
</li>
|
||
<li>
|
||
<p><a href="../ascii/fn.oct_digit0.html" title="fn winnow::ascii::oct_digit0"><code>oct_digit0</code></a>: Recognizes zero or more octal characters: <code>[0-7]</code>. <a href="../ascii/fn.oct_digit1.html" title="fn winnow::ascii::oct_digit1"><code>oct_digit1</code></a> does the same but returns at least one character</p>
|
||
</li>
|
||
<li>
|
||
<p><a href="../ascii/fn.float.html" title="fn winnow::ascii::float"><code>float</code></a>: Parse a floating point number in a byte string</p>
|
||
</li>
|
||
<li>
|
||
<p><a href="../ascii/fn.dec_int.html" title="fn winnow::ascii::dec_int"><code>dec_int</code></a>: Decode a variable-width, decimal signed integer</p>
|
||
</li>
|
||
<li>
|
||
<p><a href="../ascii/fn.dec_uint.html" title="fn winnow::ascii::dec_uint"><code>dec_uint</code></a>: Decode a variable-width, decimal unsigned integer</p>
|
||
</li>
|
||
<li>
|
||
<p><a href="../ascii/fn.hex_uint.html" title="fn winnow::ascii::hex_uint"><code>hex_uint</code></a>: Decode a variable-width, hexadecimal integer</p>
|
||
</li>
|
||
<li>
|
||
<p><a href="../ascii/fn.take_escaped.html" title="fn winnow::ascii::take_escaped"><code>take_escaped</code></a>: Recognize the input slice with escaped characters</p>
|
||
</li>
|
||
<li>
|
||
<p><a href="../ascii/fn.escaped_transform.html" title="fn winnow::ascii::escaped_transform"><code>escaped_transform</code></a>: Parse escaped characters, unescaping them</p>
|
||
</li>
|
||
</ul>
|
||
<h4 id="character-test-functions"><a class="doc-anchor" href="#character-test-functions">§</a>Character test functions</h4>
|
||
<p>Use these functions with a combinator like <code>take_while</code>:</p>
|
||
<ul>
|
||
<li><a href="../stream/trait.AsChar.html#tymethod.is_alpha" title="method winnow::stream::AsChar::is_alpha"><code>AsChar::is_alpha</code></a>: Tests if byte is ASCII alphabetic: <code>[A-Za-z]</code></li>
|
||
<li><a href="../stream/trait.AsChar.html#tymethod.is_alphanum" title="method winnow::stream::AsChar::is_alphanum"><code>AsChar::is_alphanum</code></a>: Tests if byte is ASCII alphanumeric: <code>[A-Za-z0-9]</code></li>
|
||
<li><a href="../stream/trait.AsChar.html#tymethod.is_dec_digit" title="method winnow::stream::AsChar::is_dec_digit"><code>AsChar::is_dec_digit</code></a>: Tests if byte is ASCII digit: <code>[0-9]</code></li>
|
||
<li><a href="../stream/trait.AsChar.html#tymethod.is_hex_digit" title="method winnow::stream::AsChar::is_hex_digit"><code>AsChar::is_hex_digit</code></a>: Tests if byte is ASCII hex digit: <code>[0-9A-Fa-f]</code></li>
|
||
<li><a href="../stream/trait.AsChar.html#tymethod.is_oct_digit" title="method winnow::stream::AsChar::is_oct_digit"><code>AsChar::is_oct_digit</code></a>: Tests if byte is ASCII octal digit: <code>[0-7]</code></li>
|
||
<li><a href="../stream/trait.AsChar.html#tymethod.is_space" title="method winnow::stream::AsChar::is_space"><code>AsChar::is_space</code></a>: Tests if byte is ASCII space or tab: <code>[ \t]</code></li>
|
||
<li><a href="../stream/trait.AsChar.html#tymethod.is_newline" title="method winnow::stream::AsChar::is_newline"><code>AsChar::is_newline</code></a>: Tests if byte is ASCII newline: <code>[\n]</code></li>
|
||
</ul>
|
||
<h3 id="binary-format-parsing"><a class="doc-anchor" href="#binary-format-parsing">§</a>Binary format parsing</h3>
|
||
<ul>
|
||
<li><a href="../binary/fn.length_repeat.html" title="fn winnow::binary::length_repeat"><code>length_repeat</code></a> Gets a number from the first parser, then applies the second parser that many times</li>
|
||
<li><a href="../binary/fn.length_take.html" title="fn winnow::binary::length_take"><code>length_take</code></a>: Gets a number from the first parser, then takes a subslice of the input of that size, and returns that subslice</li>
|
||
<li><a href="../binary/fn.length_and_then.html" title="fn winnow::binary::length_and_then"><code>length_and_then</code></a>: Gets a number from the first parser, takes a subslice of the input of that size, then applies the second parser on that subslice. If the second parser returns <code>Incomplete</code>, <code>length_value</code> will return an error</li>
|
||
</ul>
|
||
<h4 id="integers"><a class="doc-anchor" href="#integers">§</a>Integers</h4>
|
||
<p>Parsing integers from binary formats can be done in two ways: With parser functions, or combinators with configurable endianness.</p>
|
||
<ul>
|
||
<li><strong>configurable endianness:</strong> <a href="../binary/fn.i16.html" title="fn winnow::binary::i16"><code>i16</code></a>, <a href="../binary/fn.i32.html" title="fn winnow::binary::i32"><code>i32</code></a>,
|
||
<a href="../binary/fn.i64.html" title="fn winnow::binary::i64"><code>i64</code></a>, <a href="../binary/fn.u16.html" title="fn winnow::binary::u16"><code>u16</code></a>, <a href="../binary/fn.u32.html" title="fn winnow::binary::u32"><code>u32</code></a>,
|
||
<a href="../binary/fn.u64.html" title="fn winnow::binary::u64"><code>u64</code></a> are combinators that take as argument a
|
||
<a href="../binary/enum.Endianness.html" title="enum winnow::binary::Endianness"><code>winnow::binary::Endianness</code></a>, like this: <code>i16(endianness)</code>. If the
|
||
parameter is <code>winnow::binary::Endianness::Big</code>, parse a big endian <code>i16</code> integer, otherwise a
|
||
little endian <code>i16</code> integer.</li>
|
||
<li><strong>fixed endianness</strong>: The functions are prefixed by <code>be_</code> for big endian numbers, and by <code>le_</code> for little endian numbers, and the suffix is the type they parse to. As an example, <code>be_u32</code> parses a big endian unsigned integer stored in 32 bits.
|
||
<ul>
|
||
<li><a href="../binary/fn.be_f32.html" title="fn winnow::binary::be_f32"><code>be_f32</code></a>, <a href="../binary/fn.be_f64.html" title="fn winnow::binary::be_f64"><code>be_f64</code></a>: Big endian floating point numbers</li>
|
||
<li><a href="../binary/fn.le_f32.html" title="fn winnow::binary::le_f32"><code>le_f32</code></a>, <a href="../binary/fn.le_f64.html" title="fn winnow::binary::le_f64"><code>le_f64</code></a>: Little endian floating point numbers</li>
|
||
<li><a href="../binary/fn.be_i8.html" title="fn winnow::binary::be_i8"><code>be_i8</code></a>, <a href="../binary/fn.be_i16.html" title="fn winnow::binary::be_i16"><code>be_i16</code></a>, <a href="../binary/fn.be_i24.html" title="fn winnow::binary::be_i24"><code>be_i24</code></a>, <a href="../binary/fn.be_i32.html" title="fn winnow::binary::be_i32"><code>be_i32</code></a>, <a href="../binary/fn.be_i64.html" title="fn winnow::binary::be_i64"><code>be_i64</code></a>, <a href="../binary/fn.be_i128.html" title="fn winnow::binary::be_i128"><code>be_i128</code></a>: Big endian signed integers</li>
|
||
<li><a href="../binary/fn.be_u8.html" title="fn winnow::binary::be_u8"><code>be_u8</code></a>, <a href="../binary/fn.be_u16.html" title="fn winnow::binary::be_u16"><code>be_u16</code></a>, <a href="../binary/fn.be_u24.html" title="fn winnow::binary::be_u24"><code>be_u24</code></a>, <a href="../binary/fn.be_u32.html" title="fn winnow::binary::be_u32"><code>be_u32</code></a>, <a href="../binary/fn.be_u64.html" title="fn winnow::binary::be_u64"><code>be_u64</code></a>, <a href="../binary/fn.be_u128.html" title="fn winnow::binary::be_u128"><code>be_u128</code></a>: Big endian unsigned integers</li>
|
||
<li><a href="../binary/fn.le_i8.html" title="fn winnow::binary::le_i8"><code>le_i8</code></a>, <a href="../binary/fn.le_i16.html" title="fn winnow::binary::le_i16"><code>le_i16</code></a>, <a href="../binary/fn.le_i24.html" title="fn winnow::binary::le_i24"><code>le_i24</code></a>, <a href="../binary/fn.le_i32.html" title="fn winnow::binary::le_i32"><code>le_i32</code></a>, <a href="../binary/fn.le_i64.html" title="fn winnow::binary::le_i64"><code>le_i64</code></a>, <a href="../binary/fn.le_i128.html" title="fn winnow::binary::le_i128"><code>le_i128</code></a>: Little endian signed integers</li>
|
||
<li><a href="../binary/fn.le_u8.html" title="fn winnow::binary::le_u8"><code>le_u8</code></a>, <a href="../binary/fn.le_u16.html" title="fn winnow::binary::le_u16"><code>le_u16</code></a>, <a href="../binary/fn.le_u24.html" title="fn winnow::binary::le_u24"><code>le_u24</code></a>, <a href="../binary/fn.le_u32.html" title="fn winnow::binary::le_u32"><code>le_u32</code></a>, <a href="../binary/fn.le_u64.html" title="fn winnow::binary::le_u64"><code>le_u64</code></a>, <a href="../binary/fn.le_u128.html" title="fn winnow::binary::le_u128"><code>le_u128</code></a>: Little endian unsigned integers</li>
|
||
</ul>
|
||
</li>
|
||
</ul>
|
||
<h4 id="bit-stream-parsing"><a class="doc-anchor" href="#bit-stream-parsing">§</a>Bit stream parsing</h4>
|
||
<ul>
|
||
<li><a href="../binary/bits/fn.bits.html" title="fn winnow::binary::bits::bits"><code>bits</code></a>: Transforms the current input type (byte slice <code>&[u8]</code>) to a bit stream on which bit specific parsers and more general combinators can be applied</li>
|
||
<li><a href="../binary/bits/fn.bytes.html" title="fn winnow::binary::bits::bytes"><code>bytes</code></a>: Transforms its bits stream input back into a byte slice for the underlying parser</li>
|
||
<li><a href="../binary/bits/fn.take.html" title="fn winnow::binary::bits::take"><code>take</code></a>: Take a set number of bits</li>
|
||
<li><a href="../binary/bits/fn.pattern.html" title="fn winnow::binary::bits::pattern"><code>pattern</code></a>: Check if a set number of bits matches a pattern</li>
|
||
<li><a href="../binary/bits/fn.bool.html" title="fn winnow::binary::bits::bool"><code>bool</code></a>: Match any one bit</li>
|
||
</ul>
|
||
</div></details><h2 id="macros" class="section-header">Macros<a href="#macros" class="anchor">§</a></h2><ul class="item-table"><li><div class="item-name"><a class="macro" href="macro.dispatch.html" title="macro winnow::combinator::dispatch">dispatch</a></div><div class="desc docblock-short"><code>match</code> for parsers</div></li><li><div class="item-name"><a class="macro" href="macro.seq.html" title="macro winnow::combinator::seq">seq</a></div><div class="desc docblock-short">Initialize a struct or tuple out of a sequences of parsers</div></li></ul><h2 id="structs" class="section-header">Structs<a href="#structs" class="anchor">§</a></h2><ul class="item-table"><li><div class="item-name"><a class="struct" href="struct.AndThen.html" title="struct winnow::combinator::AndThen">AndThen</a></div><div class="desc docblock-short">Implementation of <a href="../trait.Parser.html#method.and_then" title="method winnow::Parser::and_then"><code>Parser::and_then</code></a></div></li><li><div class="item-name"><a class="struct" href="struct.ByRef.html" title="struct winnow::combinator::ByRef">ByRef</a></div><div class="desc docblock-short">Implementation of <a href="../trait.Parser.html#method.by_ref" title="method winnow::Parser::by_ref"><code>Parser::by_ref</code></a></div></li><li><div class="item-name"><a class="struct" href="struct.CompleteErr.html" title="struct winnow::combinator::CompleteErr">CompleteErr</a></div><div class="desc docblock-short">Implementation of <a href="../trait.Parser.html#method.complete_err" title="method winnow::Parser::complete_err"><code>Parser::complete_err</code></a></div></li><li><div class="item-name"><a class="struct" href="struct.Context.html" title="struct winnow::combinator::Context">Context</a></div><div class="desc docblock-short">Implementation of <a href="../trait.Parser.html#method.context" title="method winnow::Parser::context"><code>Parser::context</code></a></div></li><li><div class="item-name"><a class="struct" href="struct.DefaultValue.html" title="struct winnow::combinator::DefaultValue">DefaultValue</a></div><div class="desc docblock-short">Implementation of <a href="../trait.Parser.html#method.default_value" title="method winnow::Parser::default_value"><code>Parser::default_value</code></a></div></li><li><div class="item-name"><a class="struct" href="struct.ErrInto.html" title="struct winnow::combinator::ErrInto">ErrInto</a></div><div class="desc docblock-short">Implementation of <a href="../trait.Parser.html#method.err_into" title="method winnow::Parser::err_into"><code>Parser::err_into</code></a></div></li><li><div class="item-name"><a class="struct" href="struct.FlatMap.html" title="struct winnow::combinator::FlatMap">FlatMap</a></div><div class="desc docblock-short">Implementation of <a href="../trait.Parser.html#method.flat_map" title="method winnow::Parser::flat_map"><code>Parser::flat_map</code></a></div></li><li><div class="item-name"><a class="struct" href="struct.Map.html" title="struct winnow::combinator::Map">Map</a></div><div class="desc docblock-short">Implementation of <a href="../trait.Parser.html#method.map" title="method winnow::Parser::map"><code>Parser::map</code></a></div></li><li><div class="item-name"><a class="struct" href="struct.OutputInto.html" title="struct winnow::combinator::OutputInto">OutputInto</a></div><div class="desc docblock-short">Implementation of <a href="../trait.Parser.html#method.output_into" title="method winnow::Parser::output_into"><code>Parser::output_into</code></a></div></li><li><div class="item-name"><a class="struct" href="struct.ParseTo.html" title="struct winnow::combinator::ParseTo">ParseTo</a></div><div class="desc docblock-short">Implementation of <a href="../trait.Parser.html#method.parse_to" title="method winnow::Parser::parse_to"><code>Parser::parse_to</code></a></div></li><li><div class="item-name"><a class="struct" href="struct.ParserIterator.html" title="struct winnow::combinator::ParserIterator">ParserIterator</a></div><div class="desc docblock-short">Main structure associated to <a href="fn.iterator.html" title="fn winnow::combinator::iterator"><code>iterator</code></a>.</div></li><li><div class="item-name"><a class="struct" href="struct.Recognize.html" title="struct winnow::combinator::Recognize">Recognize</a></div><div class="desc docblock-short">Implementation of <a href="../trait.Parser.html#method.recognize" title="method winnow::Parser::recognize"><code>Parser::recognize</code></a></div></li><li><div class="item-name"><a class="struct" href="struct.Repeat.html" title="struct winnow::combinator::Repeat">Repeat</a></div><div class="desc docblock-short">Implementation of <a href="fn.repeat.html" title="fn winnow::combinator::repeat"><code>repeat</code></a></div></li><li><div class="item-name"><a class="struct" href="struct.Span.html" title="struct winnow::combinator::Span">Span</a></div><div class="desc docblock-short">Implementation of <a href="../trait.Parser.html#method.span" title="method winnow::Parser::span"><code>Parser::span</code></a></div></li><li><div class="item-name"><a class="struct" href="struct.TryMap.html" title="struct winnow::combinator::TryMap">TryMap</a></div><div class="desc docblock-short">Implementation of <a href="../trait.Parser.html#method.try_map" title="method winnow::Parser::try_map"><code>Parser::try_map</code></a></div></li><li><div class="item-name"><a class="struct" href="struct.Value.html" title="struct winnow::combinator::Value">Value</a></div><div class="desc docblock-short">Implementation of <a href="../trait.Parser.html#method.value" title="method winnow::Parser::value"><code>Parser::value</code></a></div></li><li><div class="item-name"><a class="struct" href="struct.Verify.html" title="struct winnow::combinator::Verify">Verify</a></div><div class="desc docblock-short">Implementation of <a href="../trait.Parser.html#method.verify" title="method winnow::Parser::verify"><code>Parser::verify</code></a></div></li><li><div class="item-name"><a class="struct" href="struct.VerifyMap.html" title="struct winnow::combinator::VerifyMap">VerifyMap</a></div><div class="desc docblock-short">Implementation of <a href="../trait.Parser.html#method.verify_map" title="method winnow::Parser::verify_map"><code>Parser::verify_map</code></a></div></li><li><div class="item-name"><a class="struct" href="struct.Void.html" title="struct winnow::combinator::Void">Void</a></div><div class="desc docblock-short">Implementation of <a href="../trait.Parser.html#method.void" title="method winnow::Parser::void"><code>Parser::void</code></a></div></li><li><div class="item-name"><a class="struct" href="struct.WithRecognized.html" title="struct winnow::combinator::WithRecognized">WithRecognized</a></div><div class="desc docblock-short">Implementation of <a href="../trait.Parser.html#method.with_recognized" title="method winnow::Parser::with_recognized"><code>Parser::with_recognized</code></a></div></li><li><div class="item-name"><a class="struct" href="struct.WithSpan.html" title="struct winnow::combinator::WithSpan">WithSpan</a></div><div class="desc docblock-short">Implementation of <a href="../trait.Parser.html#method.with_span" title="method winnow::Parser::with_span"><code>Parser::with_span</code></a></div></li></ul><h2 id="traits" class="section-header">Traits<a href="#traits" class="anchor">§</a></h2><ul class="item-table"><li><div class="item-name"><a class="trait" href="trait.Alt.html" title="trait winnow::combinator::Alt">Alt</a></div><div class="desc docblock-short">Helper trait for the <a href="fn.alt.html" title="fn winnow::combinator::alt"><code>alt()</code></a> combinator.</div></li><li><div class="item-name"><a class="trait" href="trait.Permutation.html" title="trait winnow::combinator::Permutation">Permutation</a></div><div class="desc docblock-short">Helper trait for the <a href="fn.permutation.html" title="fn winnow::combinator::permutation"><code>permutation()</code></a> combinator.</div></li></ul><h2 id="functions" class="section-header">Functions<a href="#functions" class="anchor">§</a></h2><ul class="item-table"><li><div class="item-name"><a class="fn" href="fn.alt.html" title="fn winnow::combinator::alt">alt</a></div><div class="desc docblock-short">Pick the first successful parser</div></li><li><div class="item-name"><a class="fn" href="fn.backtrack_err.html" title="fn winnow::combinator::backtrack_err">backtrack_err</a></div><div class="desc docblock-short">Transforms an <a href="../error/enum.ErrMode.html#variant.Cut" title="variant winnow::error::ErrMode::Cut"><code>ErrMode::Cut</code></a> (unrecoverable) to <a href="../error/enum.ErrMode.html#variant.Backtrack" title="variant winnow::error::ErrMode::Backtrack"><code>ErrMode::Backtrack</code></a> (recoverable)</div></li><li><div class="item-name"><a class="fn" href="fn.cond.html" title="fn winnow::combinator::cond">cond</a></div><div class="desc docblock-short">Calls the parser if the condition is met.</div></li><li><div class="item-name"><a class="fn" href="fn.cut_err.html" title="fn winnow::combinator::cut_err">cut_err</a></div><div class="desc docblock-short">Transforms an <a href="../error/enum.ErrMode.html#variant.Backtrack" title="variant winnow::error::ErrMode::Backtrack"><code>ErrMode::Backtrack</code></a> (recoverable) to <a href="../error/enum.ErrMode.html#variant.Cut" title="variant winnow::error::ErrMode::Cut"><code>ErrMode::Cut</code></a> (unrecoverable)</div></li><li><div class="item-name"><a class="fn" href="fn.delimited.html" title="fn winnow::combinator::delimited">delimited</a></div><div class="desc docblock-short">Sequence three parsers, only returning the output of the second.</div></li><li><div class="item-name"><a class="fn" href="fn.empty.html" title="fn winnow::combinator::empty">empty</a></div><div class="desc docblock-short">Succeed, consuming no input</div></li><li><div class="item-name"><a class="fn" href="fn.eof.html" title="fn winnow::combinator::eof">eof</a></div><div class="desc docblock-short">Match the end of the <a href="../stream/trait.Stream.html" title="trait winnow::stream::Stream"><code>Stream</code></a></div></li><li><div class="item-name"><a class="fn" href="fn.fail.html" title="fn winnow::combinator::fail">fail</a></div><div class="desc docblock-short">A parser which always fails.</div></li><li><div class="item-name"><a class="fn" href="fn.fill.html" title="fn winnow::combinator::fill">fill</a></div><div class="desc docblock-short">Repeats the embedded parser, filling the given slice with results.</div></li><li><div class="item-name"><a class="fn" href="fn.iterator.html" title="fn winnow::combinator::iterator">iterator</a></div><div class="desc docblock-short">Repeats the embedded parser, lazily returning the results</div></li><li><div class="item-name"><a class="fn" href="fn.not.html" title="fn winnow::combinator::not">not</a></div><div class="desc docblock-short">Succeeds if the child parser returns an error.</div></li><li><div class="item-name"><a class="fn" href="fn.opt.html" title="fn winnow::combinator::opt">opt</a></div><div class="desc docblock-short">Apply a <a href="../trait.Parser.html" title="trait winnow::Parser"><code>Parser</code></a>, producing <code>None</code> on <a href="../error/enum.ErrMode.html#variant.Backtrack" title="variant winnow::error::ErrMode::Backtrack"><code>ErrMode::Backtrack</code></a>.</div></li><li><div class="item-name"><a class="fn" href="fn.peek.html" title="fn winnow::combinator::peek">peek</a></div><div class="desc docblock-short">Tries to apply its parser without consuming the input.</div></li><li><div class="item-name"><a class="fn" href="fn.permutation.html" title="fn winnow::combinator::permutation">permutation</a></div><div class="desc docblock-short">Applies a list of parsers in any order.</div></li><li><div class="item-name"><a class="fn" href="fn.preceded.html" title="fn winnow::combinator::preceded">preceded</a></div><div class="desc docblock-short">Sequence two parsers, only returning the output from the second.</div></li><li><div class="item-name"><a class="fn" href="fn.repeat.html" title="fn winnow::combinator::repeat">repeat</a></div><div class="desc docblock-short"><a href="../stream/trait.Accumulate.html" title="trait winnow::stream::Accumulate"><code>Accumulate</code></a> the output of a parser into a container, like <code>Vec</code></div></li><li><div class="item-name"><a class="fn" href="fn.repeat_till.html" title="fn winnow::combinator::repeat_till">repeat_till</a></div><div class="desc docblock-short"><a href="../stream/trait.Accumulate.html" title="trait winnow::stream::Accumulate"><code>Accumulate</code></a> the output of parser <code>f</code> into a container, like <code>Vec</code>, until the parser <code>g</code>
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produces a result.</div></li><li><div class="item-name"><a class="fn" href="fn.rest.html" title="fn winnow::combinator::rest">rest</a></div><div class="desc docblock-short">Return the remaining input.</div></li><li><div class="item-name"><a class="fn" href="fn.rest_len.html" title="fn winnow::combinator::rest_len">rest_len</a></div><div class="desc docblock-short">Return the length of the remaining input.</div></li><li><div class="item-name"><a class="fn" href="fn.separated.html" title="fn winnow::combinator::separated">separated</a></div><div class="desc docblock-short"><a href="../stream/trait.Accumulate.html" title="trait winnow::stream::Accumulate"><code>Accumulate</code></a> the output of a parser, interleaved with <code>sep</code></div></li><li><div class="item-name"><a class="fn" href="fn.separated_foldl1.html" title="fn winnow::combinator::separated_foldl1">separated_foldl1</a></div><div class="desc docblock-short">Alternates between two parsers, merging the results (left associative)</div></li><li><div class="item-name"><a class="fn" href="fn.separated_foldr1.html" title="fn winnow::combinator::separated_foldr1">separated_foldr1</a></div><div class="desc docblock-short">Alternates between two parsers, merging the results (right associative)</div></li><li><div class="item-name"><a class="fn" href="fn.separated_pair.html" title="fn winnow::combinator::separated_pair">separated_pair</a></div><div class="desc docblock-short">Sequence three parsers, only returning the values of the first and third.</div></li><li><div class="item-name"><a class="fn" href="fn.terminated.html" title="fn winnow::combinator::terminated">terminated</a></div><div class="desc docblock-short">Sequence two parsers, only returning the output of the first.</div></li><li><div class="item-name"><a class="fn" href="fn.todo.html" title="fn winnow::combinator::todo">todo</a></div><div class="desc docblock-short">A placeholder for a not-yet-implemented <a href="../trait.Parser.html" title="trait winnow::Parser"><code>Parser</code></a></div></li><li><div class="item-name"><a class="fn" href="fn.trace.html" title="fn winnow::combinator::trace">trace</a></div><div class="desc docblock-short">Trace the execution of the parser</div></li></ul></section></div></main></body></html> |