| <!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="Source of the Rust file `/root/.cargo/registry/src/github.com-1ecc6299db9ec823/unicode-normalization-0.1.22/src/replace.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>replace.rs - source</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" href="../../normalize.css"><link rel="stylesheet" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../ayu.css" disabled><link rel="stylesheet" href="../../dark.css" disabled><link rel="stylesheet" href="../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../storage.js"></script><script defer src="../../source-script.js"></script><script defer src="../../source-files.js"></script><script defer src="../../main.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" href="https://unicode-rs.github.io/unicode-rs_sm.png"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../unicode_normalization/index.html"><div class="logo-container"> |
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| </pre><pre class="rust"><code><span class="comment">// Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| </span><span class="kw">use </span>core::fmt::{<span class="self">self</span>, Write}; |
| <span class="kw">use </span>tinyvec::ArrayVec; |
| |
| <span class="doccomment">/// External iterator for replacements for a string's characters. |
| </span><span class="attribute">#[derive(Clone)] |
| </span><span class="kw">pub struct </span>Replacements<I> { |
| iter: I, |
| <span class="comment">// At this time, the longest replacement sequence has length 2, so we just |
| // need buffer space for 1 codepoint. |
| </span>buffer: <span class="prelude-ty">Option</span><char>, |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>new_cjk_compat_variants<I: Iterator<Item = char>>(iter: I) -> Replacements<I> { |
| Replacements { iter, buffer: <span class="prelude-val">None </span>} |
| } |
| |
| <span class="kw">impl</span><I: Iterator<Item = char>> Iterator <span class="kw">for </span>Replacements<I> { |
| <span class="kw">type </span>Item = char; |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>next(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><char> { |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(c) = <span class="self">self</span>.buffer.take() { |
| <span class="kw">return </span><span class="prelude-val">Some</span>(c); |
| } |
| |
| <span class="kw">match </span><span class="self">self</span>.iter.next() { |
| <span class="prelude-val">Some</span>(ch) => { |
| <span class="comment">// At this time, the longest replacement sequence has length 2. |
| </span><span class="kw">let </span><span class="kw-2">mut </span>buffer = ArrayVec::<[char; <span class="number">2</span>]>::new(); |
| <span class="kw">super</span>::char::decompose_cjk_compat_variants(ch, |d| buffer.push(d)); |
| <span class="self">self</span>.buffer = buffer.get(<span class="number">1</span>).copied(); |
| <span class="prelude-val">Some</span>(buffer[<span class="number">0</span>]) |
| } |
| <span class="prelude-val">None </span>=> <span class="prelude-val">None</span>, |
| } |
| } |
| |
| <span class="kw">fn </span>size_hint(<span class="kw-2">&</span><span class="self">self</span>) -> (usize, <span class="prelude-ty">Option</span><usize>) { |
| <span class="kw">let </span>(lower, <span class="kw">_</span>) = <span class="self">self</span>.iter.size_hint(); |
| (lower, <span class="prelude-val">None</span>) |
| } |
| } |
| |
| <span class="kw">impl</span><I: Iterator<Item = char> + Clone> fmt::Display <span class="kw">for </span>Replacements<I> { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>fmt::Formatter) -> fmt::Result { |
| <span class="kw">for </span>c <span class="kw">in </span><span class="self">self</span>.clone() { |
| f.write_char(c)<span class="question-mark">?</span>; |
| } |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| </code></pre></div> |
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