| <!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/encoding_rs-0.8.32/src/replacement.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>replacement.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="alternate icon" type="image/png" href="../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../favicon.svg"></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="../../encoding_rs/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../encoding_rs/index.html"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></a><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"><a href="../../help.html">?</a></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><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| </pre><pre class="rust"><code><span class="comment">// Copyright Mozilla Foundation. See the COPYRIGHT |
| // file at the top-level directory of this distribution. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // https://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or https://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 super</span>::<span class="kw-2">*</span>; |
| <span class="kw">use </span><span class="kw">crate</span>::variant::<span class="kw-2">*</span>; |
| |
| <span class="kw">pub struct </span>ReplacementDecoder { |
| emitted: bool, |
| } |
| |
| <span class="kw">impl </span>ReplacementDecoder { |
| <span class="kw">pub fn </span>new() -> VariantDecoder { |
| VariantDecoder::Replacement(ReplacementDecoder { emitted: <span class="bool-val">false </span>}) |
| } |
| |
| <span class="kw">pub fn </span>max_utf16_buffer_length(<span class="kw-2">&</span><span class="self">self</span>, _u16_length: usize) -> <span class="prelude-ty">Option</span><usize> { |
| <span class="prelude-val">Some</span>(<span class="number">1</span>) |
| } |
| |
| <span class="kw">pub fn </span>max_utf8_buffer_length_without_replacement(<span class="kw-2">&</span><span class="self">self</span>, _byte_length: usize) -> <span class="prelude-ty">Option</span><usize> { |
| <span class="prelude-val">Some</span>(<span class="number">3</span>) |
| } |
| |
| <span class="kw">pub fn </span>max_utf8_buffer_length(<span class="kw-2">&</span><span class="self">self</span>, _byte_length: usize) -> <span class="prelude-ty">Option</span><usize> { |
| <span class="prelude-val">Some</span>(<span class="number">3</span>) |
| } |
| |
| <span class="kw">pub fn </span>decode_to_utf16_raw( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| src: <span class="kw-2">&</span>[u8], |
| dst: <span class="kw-2">&mut </span>[u16], |
| _last: bool, |
| ) -> (DecoderResult, usize, usize) { |
| <span class="comment">// Don't err if the input stream is empty. See |
| // https://github.com/whatwg/encoding/issues/33 |
| </span><span class="kw">if </span><span class="self">self</span>.emitted || src.is_empty() { |
| (DecoderResult::InputEmpty, src.len(), <span class="number">0</span>) |
| } <span class="kw">else if </span>dst.is_empty() { |
| <span class="comment">// Make sure there's room for the replacement character. |
| </span>(DecoderResult::OutputFull, <span class="number">0</span>, <span class="number">0</span>) |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.emitted = <span class="bool-val">true</span>; |
| (DecoderResult::Malformed(<span class="number">1</span>, <span class="number">0</span>), <span class="number">1</span>, <span class="number">0</span>) |
| } |
| } |
| |
| <span class="kw">pub fn </span>decode_to_utf8_raw( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| src: <span class="kw-2">&</span>[u8], |
| dst: <span class="kw-2">&mut </span>[u8], |
| _last: bool, |
| ) -> (DecoderResult, usize, usize) { |
| <span class="comment">// Don't err if the input stream is empty. See |
| // https://github.com/whatwg/encoding/issues/33 |
| </span><span class="kw">if </span><span class="self">self</span>.emitted || src.is_empty() { |
| (DecoderResult::InputEmpty, src.len(), <span class="number">0</span>) |
| } <span class="kw">else if </span>dst.len() < <span class="number">3 </span>{ |
| <span class="comment">// Make sure there's room for the replacement character. |
| </span>(DecoderResult::OutputFull, <span class="number">0</span>, <span class="number">0</span>) |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.emitted = <span class="bool-val">true</span>; |
| (DecoderResult::Malformed(<span class="number">1</span>, <span class="number">0</span>), <span class="number">1</span>, <span class="number">0</span>) |
| } |
| } |
| } |
| |
| <span class="comment">// Any copyright to the test code below this comment is dedicated to the |
| // Public Domain. http://creativecommons.org/publicdomain/zero/1.0/ |
| |
| </span><span class="attribute">#[cfg(all(test, feature = <span class="string">"alloc"</span>))] |
| </span><span class="kw">mod </span>tests { |
| <span class="kw">use </span><span class="kw">super</span>::<span class="kw">super</span>::testing::<span class="kw-2">*</span>; |
| <span class="kw">use </span><span class="kw">super</span>::<span class="kw">super</span>::<span class="kw-2">*</span>; |
| |
| <span class="kw">fn </span>decode_replacement(bytes: <span class="kw-2">&</span>[u8], expect: <span class="kw-2">&</span>str) { |
| decode_without_padding(REPLACEMENT, bytes, expect); |
| } |
| |
| <span class="kw">fn </span>encode_replacement(string: <span class="kw-2">&</span>str, expect: <span class="kw-2">&</span>[u8]) { |
| encode(REPLACEMENT, string, expect); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_replacement_decode() { |
| decode_replacement(<span class="string">b""</span>, <span class="string">""</span>); |
| decode_replacement(<span class="string">b"A"</span>, <span class="string">"\u{FFFD}"</span>); |
| decode_replacement(<span class="string">b"AB"</span>, <span class="string">"\u{FFFD}"</span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_replacement_encode() { |
| <span class="comment">// Empty |
| </span>encode_replacement(<span class="string">""</span>, <span class="string">b""</span>); |
| |
| <span class="macro">assert_eq!</span>(REPLACEMENT.new_encoder().encoding(), UTF_8); |
| encode_replacement(<span class="string">"\u{1F4A9}\u{2603}"</span>, <span class="string">"\u{1F4A9}\u{2603}"</span>.as_bytes()); |
| } |
| } |
| </code></pre></div> |
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