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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`." > < meta name = "keywords" content = "rust, rustlang, rust-lang" > < title > utils.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" > < / nav > < main > < div class = "width-limiter" > < nav class = "sub" > < a class = "sub-logo-container" href = "../../actix_web_httpauth/index.html" > < img class = "rust-logo" src = "../../rust-logo.svg" alt = "logo" > < / a > < form class = "search-form" > < span > < / span > < input class = "search-input" name = "search" autocomplete = "off" spellcheck = "false" placeholder = "Click or press ‘ ’ ‘ ’ 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 > < / 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 = "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 {
YieldStr,
YieldQuote,
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}
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< span class = "kw" > struct < / span > Quoted< < span class = "lifetime" > ' a< / span > > {
inner: ::std::iter::Peekable< str::Split< < span class = "lifetime" > ' a< / span > , char> > ,
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 > > {
< span class = "kw" > pub fn < / span > new(s: < span class = "kw-2" > & < / span > < span class = "lifetime" > ' a < / span > str) -> Quoted< < span class = "lifetime" > ' _< / span > > {
Quoted {
inner: s.split(< span class = "string" > ' " ' < / span > ).peekable(),
state: State::YieldStr,
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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 > > {
< 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> {
< span class = "kw" > match < / span > < span class = "self" > self< / span > .state {
State::YieldStr => < span class = "kw" > match < / span > < span class = "self" > self< / span > .inner.next() {
< span class = "prelude-val" > Some< / span > (val) => {
< span class = "self" > self< / span > .state = State::YieldQuote;
< 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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< span class = "prelude-val" > None < / span > => < span class = "prelude-val" > None< / span > ,
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},
}
}
}
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< span class = "doccomment" > /// Escapes the quotes in `val`.
< / span > < span class = "kw" > pub fn < / span > put_quoted(buf: < span class = "kw-2" > & mut < / span > BytesMut, val: < span class = "kw-2" > & < / span > str) {
< span class = "kw" > for < / span > part < span class = "kw" > in < / span > Quoted::new(val) {
buf.extend_from_slice(part.as_bytes());
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}
}
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< span class = "attribute" > #[cfg(test)]
< / span > < span class = "kw" > mod < / span > tests {
< 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 = "attribute" > #[test]
< / span > < span class = "kw" > fn < / span > test_quote_str() {
< span class = "kw" > let < / span > input = < span class = "string" > " a \" quoted\" string" < / span > ;
< span class = "kw" > let < / span > < span class = "kw-2" > mut < / span > output = BytesMut::new();
put_quoted(< span class = "kw-2" > & mut < / span > output, input);
< 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 = "attribute" > #[test]
< / span > < span class = "kw" > fn < / span > test_without_quotes() {
< span class = "kw" > let < / span > input = < span class = "string" > " non-quoted string" < / span > ;
< span class = "kw" > let < / span > < span class = "kw-2" > mut < / span > output = BytesMut::new();
put_quoted(< span class = "kw-2" > & mut < / span > output, input);
< 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 = "attribute" > #[test]
< / span > < span class = "kw" > fn < / span > test_starts_with_quote() {
< span class = "kw" > let < / span > input = < span class = "string" > " \" first-quoted string" < / span > ;
< span class = "kw" > let < / span > < span class = "kw-2" > mut < / span > output = BytesMut::new();
put_quoted(< span class = "kw-2" > & mut < / span > output, input);
< 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 = "attribute" > #[test]
< / span > < span class = "kw" > fn < / span > test_ends_with_quote() {
< span class = "kw" > let < / span > input = < span class = "string" > " last-quoted string\" " < / span > ;
< span class = "kw" > let < / span > < span class = "kw-2" > mut < / span > output = BytesMut::new();
put_quoted(< span class = "kw-2" > & mut < / span > output, input);
< 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 = "attribute" > #[test]
< / span > < span class = "kw" > fn < / span > test_double_quote() {
< span class = "kw" > let < / span > input = < span class = "string" > " quote\" \" string" < / span > ;
< span class = "kw" > let < / span > < span class = "kw-2" > mut < / span > output = BytesMut::new();
put_quoted(< span class = "kw-2" > & mut < / span > output, input);
< 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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< / code > < / pre > < / div >
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< / section > < / div > < / main > < div id = "rustdoc-vars" data-root-path = "../../" data-current-crate = "actix_web_httpauth" data-themes = "ayu,dark,light" data-resource-suffix = "" data-rustdoc-version = "1.66.0-nightly (5e9772042 2022-10-29)" > < / div > < / body > < / html >
