<main><divclass="width-limiter"><navclass="sub"><formclass="search-form"><span></span><divid="sidebar-button"tabindex="-1"><ahref="../../winnow/all.html"title="show sidebar"></a></div><inputclass="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"><divid="help-button"tabindex="-1"><ahref="../../help.html"title="help">?</a></div><divid="settings-menu"tabindex="-1"><ahref="../../settings.html"title="settings"><imgwidth="22"height="22"alt="Change settings"src="../../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><sectionid="main-content"class="content"><divclass="main-heading"><h1>Function <ahref="../index.html">winnow</a>::<wbr><ahref="index.html">ascii</a>::<wbr><aclass="fn"href="#">hex_digit0</a><buttonid="copy-path"title="Copy item path to clipboard"><imgsrc="../../static.files/clipboard-7571035ce49a181d.svg"width="19"height="18"alt="Copy item path"></button></h1><spanclass="out-of-band"><aclass="src"href="../../src/winnow/ascii/mod.rs.html#629-636">source</a> · <buttonid="toggle-all-docs"title="collapse all docs">[<span>−</span>]</button></span></div><preclass="rust item-decl"><code>pub fn hex_digit0<Input, Error>(
<Input as <aclass="trait"href="../stream/trait.Stream.html"title="trait winnow::stream::Stream">Stream</a>>::<aclass="associatedtype"href="../stream/trait.Stream.html#associatedtype.Token"title="type winnow::stream::Stream::Token">Token</a>: <aclass="trait"href="../stream/trait.AsChar.html"title="trait winnow::stream::AsChar">AsChar</a>,
Error: <aclass="trait"href="../error/trait.ParserError.html"title="trait winnow::error::ParserError">ParserError</a><Input>,</div></code></pre><detailsclass="toggle top-doc"open><summaryclass="hideme"><span>Expand description</span></summary><divclass="docblock"><p>Recognizes zero or more ASCII hexadecimal numerical characters: <code>'0'..='9'</code>, <code>'A'..='F'</code>,
<code>'a'..='f'</code></p>
<p><em>Complete version</em>: Will return the whole input if no terminating token is found (a non hexadecimal digit character).</p>
<p><em>[Partial version][crate::_topic::partial]</em>: Will return <code>Err(winnow::error::ErrMode::Incomplete(_))</code> if there’s not enough input data,
or if no terminating token is found (a non hexadecimal digit character).</p>