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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="Constructs useful in prefix, postfix, and infix operator parsing with the Pratt parsing method."><meta name="keywords" content="rust, rustlang, rust-lang, pratt_parser"><title>pest::pratt_parser - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled><link rel="stylesheet" type="text/css" href="../../dark.css" disabled><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../storage.js"></script><script defer src="../../main.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" href="https://raw.githubusercontent.com/pest-parser/pest/master/pest-logo.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">&#9776;</button><a class="sidebar-logo" href="../../pest/index.html"><div class="logo-container"><img src="https://raw.githubusercontent.com/pest-parser/pest/master/pest-logo.svg" alt="logo"></div></a><h2 class="location"></h2></nav><nav class="sidebar"><a class="sidebar-logo" href="../../pest/index.html"><div class="logo-container">
<img src="https://raw.githubusercontent.com/pest-parser/pest/master/pest-logo.svg" alt="logo"></div></a><h2 class="location"><a href="#">Module pratt_parser</a></h2><div class="sidebar-elems"><section><div class="block"><ul><li><a href="#structs">Structs</a></li><li><a href="#enums">Enums</a></li></ul></div></section></div></nav><main><div class="width-limiter"><div class="sub-container"><a class="sub-logo-container" href="../../pest/index.html">
<img src="https://raw.githubusercontent.com/pest-parser/pest/master/pest-logo.svg" alt="logo"></a><nav class="sub"><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><button type="button">?</button></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../wheel.svg"></a></div></div></form></nav></div><section id="main-content" class="content"><div class="main-heading"><h1 class="fqn"><span class="in-band">Module <a href="../index.html">pest</a>::<wbr><a class="mod" href="#">pratt_parser</a><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../../clipboard.svg" width="19" height="18" alt="Copy item path"></button></span></h1><span class="out-of-band"><a class="srclink" href="../../src/pest/pratt_parser.rs.html#10-387">source</a> · <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">&#x2212;</span>]</a></span></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Constructs useful in prefix, postfix, and infix operator parsing with the
Pratt parsing method.</p>
</div></details><h2 id="structs" class="small-section-header"><a href="#structs">Structs</a></h2><div class="item-table"><div class="item-row"><div class="item-left module-item"><a class="struct" href="struct.Op.html" title="pest::pratt_parser::Op struct">Op</a></div><div class="item-right docblock-short"><p>An operator that corresponds to a rule.</p>
</div></div><div class="item-row"><div class="item-left module-item"><a class="struct" href="struct.PrattParser.html" title="pest::pratt_parser::PrattParser struct">PrattParser</a></div><div class="item-right docblock-short"><p>Struct containing operators and precedences, which can perform <a href="https://en.wikipedia.org/wiki/Pratt_parser">Pratt parsing</a> on
primary, prefix, postfix and infix expressions over <a href="../iterators/struct.Pairs.html"><code>Pairs</code></a>. The tokens in <a href="../iterators/struct.Pairs.html"><code>Pairs</code></a>
should alternate in the order:
<code>prefix* ~ primary ~ postfix* ~ (infix ~ prefix* ~ primary ~ postfix*)*</code></p>
</div></div><div class="item-row"><div class="item-left module-item"><a class="struct" href="struct.PrattParserMap.html" title="pest::pratt_parser::PrattParserMap struct">PrattParserMap</a></div><div class="item-right docblock-short"><p>Product of calling <a href="struct.PrattParser.html#method.map_primary"><code>map_primary</code></a> on <a href="struct.PrattParser.html"><code>PrattParser</code></a>, defines how expressions should
be mapped.</p>
</div></div></div><h2 id="enums" class="small-section-header"><a href="#enums">Enums</a></h2><div class="item-table"><div class="item-row"><div class="item-left module-item"><a class="enum" href="enum.Assoc.html" title="pest::pratt_parser::Assoc enum">Assoc</a></div><div class="item-right docblock-short"><p>Associativity of an infix binary operator, used by <a href="struct.Op.html"><code>Op::infix(Assoc)</code></a>.</p>
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