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<meta name="description" content="API documentation for the Rust `punct` macro in crate `synom`.">
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<title>synom::punct - Rust</title>
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<h1 class='fqn'><span class='in-band'>Macro <a href='index.html'>synom</a>::<wbr><a class="macro" href=''>punct</a></span><span class='out-of-band'><span id='render-detail'>
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<pre class="rust macro">
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<span class="macro">macro_rules</span><span class="macro">!</span> <span class="ident">punct</span> {
(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">i</span>:<span class="ident">expr</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">punct</span>:<span class="ident">expr</span>) <span class="op">=&gt;</span> { ... };
}</pre>
<div class='docblock'><p>Parse a piece of punctuation like &quot;+&quot; or &quot;+=&quot;.</p>
<p>See also <code>keyword!</code> for parsing keywords, which are subtly different from
punctuation.</p>
<ul>
<li><strong>Syntax:</strong> <code>punct!(&quot;...&quot;)</code></li>
<li><strong>Output:</strong> <code>&amp;str</code></li>
</ul>
<pre class="rust rust-example-rendered">
<span class="kw">extern</span> <span class="kw">crate</span> <span class="ident">syn</span>;
<span class="attribute">#[<span class="ident">macro_use</span>]</span> <span class="kw">extern</span> <span class="kw">crate</span> <span class="ident">synom</span>;
<span class="comment">// Parse zero or more bangs.</span>
<span class="macro">named</span><span class="macro">!</span>(<span class="ident">many_bangs</span> <span class="op">-&gt;</span> <span class="ident">Vec</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="ident">str</span><span class="op">&gt;</span>,
<span class="macro">many0</span><span class="macro">!</span>(<span class="macro">punct</span><span class="macro">!</span>(<span class="string">&quot;!&quot;</span>))
);
<span class="kw">fn</span> <span class="ident">main</span>() {
<span class="kw">let</span> <span class="ident">input</span> <span class="op">=</span> <span class="string">&quot;!! !&quot;</span>;
<span class="kw">let</span> <span class="ident">parsed</span> <span class="op">=</span> <span class="ident">many_bangs</span>(<span class="ident">input</span>).<span class="ident">expect</span>(<span class="string">&quot;bangs&quot;</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">parsed</span>, [<span class="string">&quot;!&quot;</span>, <span class="string">&quot;!&quot;</span>, <span class="string">&quot;!&quot;</span>]);
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}</pre>
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