| <!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="API documentation for the Rust `Replacer` trait in crate `regex`."> |
| <meta name="keywords" content="rust, rustlang, rust-lang, Replacer"> |
| |
| <title>regex::bytes::Replacer - Rust</title> |
| |
| <link rel="stylesheet" type="text/css" href="../../normalize.css"> |
| <link rel="stylesheet" type="text/css" href="../../rustdoc.css"> |
| <link rel="stylesheet" type="text/css" href="../../main.css"> |
| |
| |
| <link rel="shortcut icon" href="https://www.rust-lang.org/favicon.ico"> |
| |
| </head> |
| <body class="rustdoc trait"> |
| <!--[if lte IE 8]> |
| <div class="warning"> |
| This old browser is unsupported and will most likely display funky |
| things. |
| </div> |
| <![endif]--> |
| |
| |
| |
| <nav class="sidebar"> |
| <a href='../../regex/index.html'><img src='https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png' alt='logo' width='100'></a> |
| <p class='location'>Trait Replacer</p><div class="block items"><ul><li><a href="#required-methods">Required Methods</a></li><li><a href="#provided-methods">Provided Methods</a></li><li><a href="#implementors">Implementors</a></li></ul></div><p class='location'><a href='../index.html'>regex</a>::<wbr><a href='index.html'>bytes</a></p><script>window.sidebarCurrent = {name: 'Replacer', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script> |
| </nav> |
| |
| <nav class="sub"> |
| <form class="search-form js-only"> |
| <div class="search-container"> |
| <input class="search-input" name="search" |
| autocomplete="off" |
| placeholder="Click or press ‘S’ to search, ‘?’ for more options…" |
| type="search"> |
| </div> |
| </form> |
| </nav> |
| |
| <section id='main' class="content"> |
| <h1 class='fqn'><span class='in-band'>Trait <a href='../index.html'>regex</a>::<wbr><a href='index.html'>bytes</a>::<wbr><a class="trait" href=''>Replacer</a></span><span class='out-of-band'><span id='render-detail'> |
| <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs"> |
| [<span class='inner'>−</span>] |
| </a> |
| </span><a class='srclink' href='../../src/regex/re_bytes.rs.html#942-962' title='goto source code'>[src]</a></span></h1> |
| <pre class='rust trait'>pub trait Replacer { |
| fn <a href='#tymethod.replace_append' class='fnname'>replace_append</a>(&mut self, caps: &<a class="struct" href="../../regex/bytes/struct.Captures.html" title="struct regex::bytes::Captures">Captures</a>, dst: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a>>); |
| |
| fn <a href='#method.no_expansion' class='fnname'>no_expansion</a><'r>(&'r mut self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="enum" href="https://doc.rust-lang.org/nightly/alloc/borrow/enum.Cow.html" title="enum alloc::borrow::Cow">Cow</a><'r, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>>> { ... } |
| }</pre><div class='docblock'><p>Replacer describes types that can be used to replace matches in a byte |
| string.</p> |
| |
| <p>In general, users of this crate shouldn't need to implement this trait, |
| since implementations are already provided for <code>&[u8]</code> and |
| <code>FnMut(&Captures) -> Vec<u8></code>, which covers most use cases.</p> |
| </div> |
| <h2 id='required-methods'>Required Methods</h2> |
| <div class='methods'> |
| <h3 id='tymethod.replace_append' class='method'><span id='replace_append.v' class='invisible'><code>fn <a href='#tymethod.replace_append' class='fnname'>replace_append</a>(&mut self, caps: &<a class="struct" href="../../regex/bytes/struct.Captures.html" title="struct regex::bytes::Captures">Captures</a>, dst: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a>>)</code></span></h3><div class='docblock'><p>Appends text to <code>dst</code> to replace the current match.</p> |
| |
| <p>The current match is represented by <code>caps</code>, which is guaranteed to |
| have a match at capture group <code>0</code>.</p> |
| |
| <p>For example, a no-op replacement would be |
| <code>dst.extend(caps.at(0).unwrap())</code>.</p> |
| </div></div> |
| <h2 id='provided-methods'>Provided Methods</h2> |
| <div class='methods'> |
| <h3 id='method.no_expansion' class='method'><span id='no_expansion.v' class='invisible'><code>fn <a href='#method.no_expansion' class='fnname'>no_expansion</a><'r>(&'r mut self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="enum" href="https://doc.rust-lang.org/nightly/alloc/borrow/enum.Cow.html" title="enum alloc::borrow::Cow">Cow</a><'r, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>>></code></span></h3><div class='docblock'><p>Return a fixed unchanging replacement byte string.</p> |
| |
| <p>When doing replacements, if access to <code>Captures</code> is not needed (e.g., |
| the replacement byte string does not need <code>$</code> expansion), then it can |
| be beneficial to avoid finding sub-captures.</p> |
| |
| <p>In general, this is called once for every call to <code>replacen</code>.</p> |
| </div></div> |
| <h2 id='implementors'>Implementors</h2> |
| <ul class='item-list' id='implementors-list'> |
| <li><code>impl<'a> Replacer for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&'a [</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a></code></li> |
| <li><code>impl<F> Replacer for F <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&<a class="struct" href="../../regex/bytes/struct.Captures.html" title="struct regex::bytes::Captures">Captures</a>) -> <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a>>, </span></code></li> |
| <li><code>impl<'a> Replacer for <a class="struct" href="../../regex/bytes/struct.NoExpand.html" title="struct regex::bytes::NoExpand">NoExpand</a><'a></code></li> |
| </ul><script type="text/javascript" async |
| src="../../implementors/regex/bytes/trait.Replacer.js"> |
| </script></section> |
| <section id='search' class="content hidden"></section> |
| |
| <section class="footer"></section> |
| |
| <aside id="help" class="hidden"> |
| <div> |
| <h1 class="hidden">Help</h1> |
| |
| <div class="shortcuts"> |
| <h2>Keyboard Shortcuts</h2> |
| |
| <dl> |
| <dt>?</dt> |
| <dd>Show this help dialog</dd> |
| <dt>S</dt> |
| <dd>Focus the search field</dd> |
| <dt>⇤</dt> |
| <dd>Move up in search results</dd> |
| <dt>⇥</dt> |
| <dd>Move down in search results</dd> |
| <dt>⏎</dt> |
| <dd>Go to active search result</dd> |
| <dt>+</dt> |
| <dd>Collapse/expand all sections</dd> |
| </dl> |
| </div> |
| |
| <div class="infos"> |
| <h2>Search Tricks</h2> |
| |
| <p> |
| Prefix searches with a type followed by a colon (e.g. |
| <code>fn:</code>) to restrict the search to a given type. |
| </p> |
| |
| <p> |
| Accepted types are: <code>fn</code>, <code>mod</code>, |
| <code>struct</code>, <code>enum</code>, |
| <code>trait</code>, <code>type</code>, <code>macro</code>, |
| and <code>const</code>. |
| </p> |
| |
| <p> |
| Search functions by type signature (e.g. |
| <code>vec -> usize</code> or <code>* -> vec</code>) |
| </p> |
| </div> |
| </div> |
| </aside> |
| |
| |
| |
| <script> |
| window.rootPath = "../../"; |
| window.currentCrate = "regex"; |
| </script> |
| <script src="../../main.js"></script> |
| <script defer src="../../search-index.js"></script> |
| </body> |
| </html> |
