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<!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 `actix-web-httpauth/src/utils.rs`."><title>utils.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Bold-a2c9cd1067f8b328.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../static.files/rustdoc-ae1b282cda4c21ec.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="actix_web_httpauth" data-themes="" data-resource-suffix="" data-rustdoc-version="1.74.0-nightly (ca2b74f1a 2023-09-14)" data-channel="nightly" data-search-js="search-5d3eaacf19ebf04f.js" data-settings-js="settings-74424d7eec62a23e.js" data-theme-light-css="light-f194925aa375ae96.css" data-theme-dark-css="dark-1dd4d1ce031e15de.css" data-theme-ayu-css="ayu-49e58d069f567085.css" ><script src="../../static.files/storage-db41da1a38ea3cb8.js"></script><script defer src="../../static.files/src-script-3280b574d94e47b4.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-cabe4b1bd7b9da95.js"></script><noscript><link rel="stylesheet" media="(prefers-color-scheme:light)" href="../../static.files/light-f194925aa375ae96.css"><link rel="stylesheet" media="(prefers-color-scheme:dark)" href="../../static.files/dark-1dd4d1ce031e15de.css"><link rel="stylesheet" href="../../static.files/noscript-cffde32267a19fd6.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc src"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"></nav><main><nav class="sub"><a class="sub-logo-container" href="../../actix_web_httpauth/index.html"><img class="rust-logo" src="../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><form class="search-form"><span></span><input class="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"><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="../../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><div data-nosnippet><pre class="src-line-numbers"><a href="#1" id="1">1</a>
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</pre></div><pre class="rust"><code><span class="kw">use </span>std::str;
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<span class="kw">use </span>actix_web::web::BytesMut;
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<span class="kw">enum </span>State {
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YieldStr,
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YieldQuote,
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}
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<span class="kw">struct </span>Quoted<<span class="lifetime">'a</span>> {
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inner: ::std::iter::Peekable<str::Split<<span class="lifetime">'a</span>, char>>,
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state: State,
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}
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<span class="kw">impl</span><<span class="lifetime">'a</span>> Quoted<<span class="lifetime">'a</span>> {
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<span class="kw">pub fn </span>new(s: <span class="kw-2">&</span><span class="lifetime">'a </span>str) -> Quoted<<span class="lifetime">'_</span>> {
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Quoted {
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inner: s.split(<span class="string">'"'</span>).peekable(),
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state: State::YieldStr,
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}
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}
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}
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<span class="kw">impl</span><<span class="lifetime">'a</span>> Iterator <span class="kw">for </span>Quoted<<span class="lifetime">'a</span>> {
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<span class="kw">type </span>Item = <span class="kw-2">&</span><span class="lifetime">'a </span>str;
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<span class="kw">fn </span>next(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>::Item> {
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<span class="kw">match </span><span class="self">self</span>.state {
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State::YieldStr => <span class="kw">match </span><span class="self">self</span>.inner.next() {
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<span class="prelude-val">Some</span>(val) => {
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<span class="self">self</span>.state = State::YieldQuote;
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<span class="prelude-val">Some</span>(val)
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}
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<span class="prelude-val">None </span>=> <span class="prelude-val">None</span>,
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},
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State::YieldQuote => <span class="kw">match </span><span class="self">self</span>.inner.peek() {
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<span class="prelude-val">Some</span>(<span class="kw">_</span>) => {
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<span class="self">self</span>.state = State::YieldStr;
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<span class="prelude-val">Some</span>(<span class="string">"\\\""</span>)
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}
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<span class="prelude-val">None </span>=> <span class="prelude-val">None</span>,
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},
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}
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}
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}
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<span class="doccomment">/// Escapes the quotes in `val`.
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</span><span class="kw">pub fn </span>put_quoted(buf: <span class="kw-2">&mut </span>BytesMut, val: <span class="kw-2">&</span>str) {
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<span class="kw">for </span>part <span class="kw">in </span>Quoted::new(val) {
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buf.extend_from_slice(part.as_bytes());
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}
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}
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<span class="attr">#[cfg(test)]
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</span><span class="kw">mod </span>tests {
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<span class="kw">use </span>std::str;
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<span class="kw">use </span>actix_web::web::BytesMut;
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<span class="kw">use </span><span class="kw">super</span>::put_quoted;
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<span class="attr">#[test]
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</span><span class="kw">fn </span>test_quote_str() {
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<span class="kw">let </span>input = <span class="string">"a \"quoted\" string"</span>;
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<span class="kw">let </span><span class="kw-2">mut </span>output = BytesMut::new();
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put_quoted(<span class="kw-2">&mut </span>output, input);
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<span class="kw">let </span>result = str::from_utf8(<span class="kw-2">&</span>output).unwrap();
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<span class="macro">assert_eq!</span>(result, <span class="string">"a \\\"quoted\\\" string"</span>);
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}
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<span class="attr">#[test]
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</span><span class="kw">fn </span>test_without_quotes() {
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<span class="kw">let </span>input = <span class="string">"non-quoted string"</span>;
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<span class="kw">let </span><span class="kw-2">mut </span>output = BytesMut::new();
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put_quoted(<span class="kw-2">&mut </span>output, input);
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<span class="kw">let </span>result = str::from_utf8(<span class="kw-2">&</span>output).unwrap();
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<span class="macro">assert_eq!</span>(result, <span class="string">"non-quoted string"</span>);
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}
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<span class="attr">#[test]
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</span><span class="kw">fn </span>test_starts_with_quote() {
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<span class="kw">let </span>input = <span class="string">"\"first-quoted string"</span>;
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<span class="kw">let </span><span class="kw-2">mut </span>output = BytesMut::new();
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put_quoted(<span class="kw-2">&mut </span>output, input);
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<span class="kw">let </span>result = str::from_utf8(<span class="kw-2">&</span>output).unwrap();
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<span class="macro">assert_eq!</span>(result, <span class="string">"\\\"first-quoted string"</span>);
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}
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<span class="attr">#[test]
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</span><span class="kw">fn </span>test_ends_with_quote() {
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<span class="kw">let </span>input = <span class="string">"last-quoted string\""</span>;
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<span class="kw">let </span><span class="kw-2">mut </span>output = BytesMut::new();
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put_quoted(<span class="kw-2">&mut </span>output, input);
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<span class="kw">let </span>result = str::from_utf8(<span class="kw-2">&</span>output).unwrap();
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<span class="macro">assert_eq!</span>(result, <span class="string">"last-quoted string\\\""</span>);
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}
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<span class="attr">#[test]
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</span><span class="kw">fn </span>test_double_quote() {
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<span class="kw">let </span>input = <span class="string">"quote\"\"string"</span>;
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<span class="kw">let </span><span class="kw-2">mut </span>output = BytesMut::new();
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put_quoted(<span class="kw-2">&mut </span>output, input);
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<span class="kw">let </span>result = str::from_utf8(<span class="kw-2">&</span>output).unwrap();
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<span class="macro">assert_eq!</span>(result, <span class="string">"quote\\\"\\\"string"</span>);
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}
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}
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</code></pre></div></section></main></body></html> |