| <!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/httpdate-1.0.2/src/date.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>date.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="../../httpdate/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="../../httpdate/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="kw">use </span>std::cmp; |
| <span class="kw">use </span>std::fmt::{<span class="self">self</span>, Display, Formatter}; |
| <span class="kw">use </span>std::str::FromStr; |
| <span class="kw">use </span>std::time::{Duration, SystemTime, UNIX_EPOCH}; |
| |
| <span class="kw">use </span><span class="kw">crate</span>::Error; |
| |
| <span class="doccomment">/// HTTP timestamp type. |
| /// |
| /// Parse using `FromStr` impl. |
| /// Format using the `Display` trait. |
| /// Convert timestamp into/from `SytemTime` to use. |
| /// Supports comparsion and sorting. |
| </span><span class="attribute">#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)] |
| </span><span class="kw">pub struct </span>HttpDate { |
| <span class="doccomment">/// 0...59 |
| </span>sec: u8, |
| <span class="doccomment">/// 0...59 |
| </span>min: u8, |
| <span class="doccomment">/// 0...23 |
| </span>hour: u8, |
| <span class="doccomment">/// 1...31 |
| </span>day: u8, |
| <span class="doccomment">/// 1...12 |
| </span>mon: u8, |
| <span class="doccomment">/// 1970...9999 |
| </span>year: u16, |
| <span class="doccomment">/// 1...7 |
| </span>wday: u8, |
| } |
| |
| <span class="kw">impl </span>HttpDate { |
| <span class="kw">fn </span>is_valid(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="self">self</span>.sec < <span class="number">60 |
| </span>&& <span class="self">self</span>.min < <span class="number">60 |
| </span>&& <span class="self">self</span>.hour < <span class="number">24 |
| </span>&& <span class="self">self</span>.day > <span class="number">0 |
| </span>&& <span class="self">self</span>.day < <span class="number">32 |
| </span>&& <span class="self">self</span>.mon > <span class="number">0 |
| </span>&& <span class="self">self</span>.mon <= <span class="number">12 |
| </span>&& <span class="self">self</span>.year >= <span class="number">1970 |
| </span>&& <span class="self">self</span>.year <= <span class="number">9999 |
| </span>&& <span class="kw-2">&</span>HttpDate::from(SystemTime::from(<span class="kw-2">*</span><span class="self">self</span>)) == <span class="self">self |
| </span>} |
| } |
| |
| <span class="kw">impl </span>From<SystemTime> <span class="kw">for </span>HttpDate { |
| <span class="kw">fn </span>from(v: SystemTime) -> HttpDate { |
| <span class="kw">let </span>dur = v |
| .duration_since(UNIX_EPOCH) |
| .expect(<span class="string">"all times should be after the epoch"</span>); |
| <span class="kw">let </span>secs_since_epoch = dur.as_secs(); |
| |
| <span class="kw">if </span>secs_since_epoch >= <span class="number">253402300800 </span>{ |
| <span class="comment">// year 9999 |
| </span><span class="macro">panic!</span>(<span class="string">"date must be before year 9999"</span>); |
| } |
| |
| <span class="comment">/* 2000-03-01 (mod 400 year, immediately after feb29 */ |
| </span><span class="kw">const </span>LEAPOCH: i64 = <span class="number">11017</span>; |
| <span class="kw">const </span>DAYS_PER_400Y: i64 = <span class="number">365 </span>* <span class="number">400 </span>+ <span class="number">97</span>; |
| <span class="kw">const </span>DAYS_PER_100Y: i64 = <span class="number">365 </span>* <span class="number">100 </span>+ <span class="number">24</span>; |
| <span class="kw">const </span>DAYS_PER_4Y: i64 = <span class="number">365 </span>* <span class="number">4 </span>+ <span class="number">1</span>; |
| |
| <span class="kw">let </span>days = (secs_since_epoch / <span class="number">86400</span>) <span class="kw">as </span>i64 - LEAPOCH; |
| <span class="kw">let </span>secs_of_day = secs_since_epoch % <span class="number">86400</span>; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>qc_cycles = days / DAYS_PER_400Y; |
| <span class="kw">let </span><span class="kw-2">mut </span>remdays = days % DAYS_PER_400Y; |
| |
| <span class="kw">if </span>remdays < <span class="number">0 </span>{ |
| remdays += DAYS_PER_400Y; |
| qc_cycles -= <span class="number">1</span>; |
| } |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>c_cycles = remdays / DAYS_PER_100Y; |
| <span class="kw">if </span>c_cycles == <span class="number">4 </span>{ |
| c_cycles -= <span class="number">1</span>; |
| } |
| remdays -= c_cycles * DAYS_PER_100Y; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>q_cycles = remdays / DAYS_PER_4Y; |
| <span class="kw">if </span>q_cycles == <span class="number">25 </span>{ |
| q_cycles -= <span class="number">1</span>; |
| } |
| remdays -= q_cycles * DAYS_PER_4Y; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>remyears = remdays / <span class="number">365</span>; |
| <span class="kw">if </span>remyears == <span class="number">4 </span>{ |
| remyears -= <span class="number">1</span>; |
| } |
| remdays -= remyears * <span class="number">365</span>; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>year = <span class="number">2000 </span>+ remyears + <span class="number">4 </span>* q_cycles + <span class="number">100 </span>* c_cycles + <span class="number">400 </span>* qc_cycles; |
| |
| <span class="kw">let </span>months = [<span class="number">31</span>, <span class="number">30</span>, <span class="number">31</span>, <span class="number">30</span>, <span class="number">31</span>, <span class="number">31</span>, <span class="number">30</span>, <span class="number">31</span>, <span class="number">30</span>, <span class="number">31</span>, <span class="number">31</span>, <span class="number">29</span>]; |
| <span class="kw">let </span><span class="kw-2">mut </span>mon = <span class="number">0</span>; |
| <span class="kw">for </span>mon_len <span class="kw">in </span>months.iter() { |
| mon += <span class="number">1</span>; |
| <span class="kw">if </span>remdays < <span class="kw-2">*</span>mon_len { |
| <span class="kw">break</span>; |
| } |
| remdays -= <span class="kw-2">*</span>mon_len; |
| } |
| <span class="kw">let </span>mday = remdays + <span class="number">1</span>; |
| <span class="kw">let </span>mon = <span class="kw">if </span>mon + <span class="number">2 </span>> <span class="number">12 </span>{ |
| year += <span class="number">1</span>; |
| mon - <span class="number">10 |
| </span>} <span class="kw">else </span>{ |
| mon + <span class="number">2 |
| </span>}; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>wday = (<span class="number">3 </span>+ days) % <span class="number">7</span>; |
| <span class="kw">if </span>wday <= <span class="number">0 </span>{ |
| wday += <span class="number">7 |
| </span>}; |
| |
| HttpDate { |
| sec: (secs_of_day % <span class="number">60</span>) <span class="kw">as </span>u8, |
| min: ((secs_of_day % <span class="number">3600</span>) / <span class="number">60</span>) <span class="kw">as </span>u8, |
| hour: (secs_of_day / <span class="number">3600</span>) <span class="kw">as </span>u8, |
| day: mday <span class="kw">as </span>u8, |
| mon: mon <span class="kw">as </span>u8, |
| year: year <span class="kw">as </span>u16, |
| wday: wday <span class="kw">as </span>u8, |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>From<HttpDate> <span class="kw">for </span>SystemTime { |
| <span class="kw">fn </span>from(v: HttpDate) -> SystemTime { |
| <span class="kw">let </span>leap_years = |
| ((v.year - <span class="number">1</span>) - <span class="number">1968</span>) / <span class="number">4 </span>- ((v.year - <span class="number">1</span>) - <span class="number">1900</span>) / <span class="number">100 </span>+ ((v.year - <span class="number">1</span>) - <span class="number">1600</span>) / <span class="number">400</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>ydays = <span class="kw">match </span>v.mon { |
| <span class="number">1 </span>=> <span class="number">0</span>, |
| <span class="number">2 </span>=> <span class="number">31</span>, |
| <span class="number">3 </span>=> <span class="number">59</span>, |
| <span class="number">4 </span>=> <span class="number">90</span>, |
| <span class="number">5 </span>=> <span class="number">120</span>, |
| <span class="number">6 </span>=> <span class="number">151</span>, |
| <span class="number">7 </span>=> <span class="number">181</span>, |
| <span class="number">8 </span>=> <span class="number">212</span>, |
| <span class="number">9 </span>=> <span class="number">243</span>, |
| <span class="number">10 </span>=> <span class="number">273</span>, |
| <span class="number">11 </span>=> <span class="number">304</span>, |
| <span class="number">12 </span>=> <span class="number">334</span>, |
| <span class="kw">_ </span>=> <span class="macro">unreachable!</span>(), |
| } + v.day <span class="kw">as </span>u64 |
| - <span class="number">1</span>; |
| <span class="kw">if </span>is_leap_year(v.year) && v.mon > <span class="number">2 </span>{ |
| ydays += <span class="number">1</span>; |
| } |
| <span class="kw">let </span>days = (v.year <span class="kw">as </span>u64 - <span class="number">1970</span>) * <span class="number">365 </span>+ leap_years <span class="kw">as </span>u64 + ydays; |
| UNIX_EPOCH |
| + Duration::from_secs( |
| v.sec <span class="kw">as </span>u64 + v.min <span class="kw">as </span>u64 * <span class="number">60 </span>+ v.hour <span class="kw">as </span>u64 * <span class="number">3600 </span>+ days * <span class="number">86400</span>, |
| ) |
| } |
| } |
| |
| <span class="kw">impl </span>FromStr <span class="kw">for </span>HttpDate { |
| <span class="kw">type </span><span class="prelude-val">Err </span>= Error; |
| |
| <span class="kw">fn </span>from_str(s: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Result</span><HttpDate, Error> { |
| <span class="kw">if </span>!s.is_ascii() { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(Error(())); |
| } |
| <span class="kw">let </span>x = s.trim().as_bytes(); |
| <span class="kw">let </span>date = parse_imf_fixdate(x) |
| .or_else(|<span class="kw">_</span>| parse_rfc850_date(x)) |
| .or_else(|<span class="kw">_</span>| parse_asctime(x))<span class="question-mark">?</span>; |
| <span class="kw">if </span>!date.is_valid() { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(Error(())); |
| } |
| <span class="prelude-val">Ok</span>(date) |
| } |
| } |
| |
| <span class="kw">impl </span>Display <span class="kw">for </span>HttpDate { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>Formatter) -> fmt::Result { |
| <span class="kw">let </span>wday = <span class="kw">match </span><span class="self">self</span>.wday { |
| <span class="number">1 </span>=> <span class="string">b"Mon"</span>, |
| <span class="number">2 </span>=> <span class="string">b"Tue"</span>, |
| <span class="number">3 </span>=> <span class="string">b"Wed"</span>, |
| <span class="number">4 </span>=> <span class="string">b"Thu"</span>, |
| <span class="number">5 </span>=> <span class="string">b"Fri"</span>, |
| <span class="number">6 </span>=> <span class="string">b"Sat"</span>, |
| <span class="number">7 </span>=> <span class="string">b"Sun"</span>, |
| <span class="kw">_ </span>=> <span class="macro">unreachable!</span>(), |
| }; |
| |
| <span class="kw">let </span>mon = <span class="kw">match </span><span class="self">self</span>.mon { |
| <span class="number">1 </span>=> <span class="string">b"Jan"</span>, |
| <span class="number">2 </span>=> <span class="string">b"Feb"</span>, |
| <span class="number">3 </span>=> <span class="string">b"Mar"</span>, |
| <span class="number">4 </span>=> <span class="string">b"Apr"</span>, |
| <span class="number">5 </span>=> <span class="string">b"May"</span>, |
| <span class="number">6 </span>=> <span class="string">b"Jun"</span>, |
| <span class="number">7 </span>=> <span class="string">b"Jul"</span>, |
| <span class="number">8 </span>=> <span class="string">b"Aug"</span>, |
| <span class="number">9 </span>=> <span class="string">b"Sep"</span>, |
| <span class="number">10 </span>=> <span class="string">b"Oct"</span>, |
| <span class="number">11 </span>=> <span class="string">b"Nov"</span>, |
| <span class="number">12 </span>=> <span class="string">b"Dec"</span>, |
| <span class="kw">_ </span>=> <span class="macro">unreachable!</span>(), |
| }; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>buf: [u8; <span class="number">29</span>] = <span class="kw-2">*</span><span class="string">b" , 00 0000 00:00:00 GMT"</span>; |
| buf[<span class="number">0</span>] = wday[<span class="number">0</span>]; |
| buf[<span class="number">1</span>] = wday[<span class="number">1</span>]; |
| buf[<span class="number">2</span>] = wday[<span class="number">2</span>]; |
| buf[<span class="number">5</span>] = <span class="string">b'0' </span>+ (<span class="self">self</span>.day / <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">6</span>] = <span class="string">b'0' </span>+ (<span class="self">self</span>.day % <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">8</span>] = mon[<span class="number">0</span>]; |
| buf[<span class="number">9</span>] = mon[<span class="number">1</span>]; |
| buf[<span class="number">10</span>] = mon[<span class="number">2</span>]; |
| buf[<span class="number">12</span>] = <span class="string">b'0' </span>+ (<span class="self">self</span>.year / <span class="number">1000</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">13</span>] = <span class="string">b'0' </span>+ (<span class="self">self</span>.year / <span class="number">100 </span>% <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">14</span>] = <span class="string">b'0' </span>+ (<span class="self">self</span>.year / <span class="number">10 </span>% <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">15</span>] = <span class="string">b'0' </span>+ (<span class="self">self</span>.year % <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">17</span>] = <span class="string">b'0' </span>+ (<span class="self">self</span>.hour / <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">18</span>] = <span class="string">b'0' </span>+ (<span class="self">self</span>.hour % <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">20</span>] = <span class="string">b'0' </span>+ (<span class="self">self</span>.min / <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">21</span>] = <span class="string">b'0' </span>+ (<span class="self">self</span>.min % <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">23</span>] = <span class="string">b'0' </span>+ (<span class="self">self</span>.sec / <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">24</span>] = <span class="string">b'0' </span>+ (<span class="self">self</span>.sec % <span class="number">10</span>) <span class="kw">as </span>u8; |
| f.write_str(std::str::from_utf8(<span class="kw-2">&</span>buf[..]).unwrap()) |
| } |
| } |
| |
| <span class="kw">impl </span>Ord <span class="kw">for </span>HttpDate { |
| <span class="kw">fn </span>cmp(<span class="kw-2">&</span><span class="self">self</span>, other: <span class="kw-2">&</span>HttpDate) -> cmp::Ordering { |
| SystemTime::from(<span class="kw-2">*</span><span class="self">self</span>).cmp(<span class="kw-2">&</span>SystemTime::from(<span class="kw-2">*</span>other)) |
| } |
| } |
| |
| <span class="kw">impl </span>PartialOrd <span class="kw">for </span>HttpDate { |
| <span class="kw">fn </span>partial_cmp(<span class="kw-2">&</span><span class="self">self</span>, other: <span class="kw-2">&</span>HttpDate) -> <span class="prelude-ty">Option</span><cmp::Ordering> { |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.cmp(other)) |
| } |
| } |
| |
| <span class="kw">fn </span>toint_1(x: u8) -> <span class="prelude-ty">Result</span><u8, Error> { |
| <span class="kw">let </span>result = x.wrapping_sub(<span class="string">b'0'</span>); |
| <span class="kw">if </span>result < <span class="number">10 </span>{ |
| <span class="prelude-val">Ok</span>(result) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Err</span>(Error(())) |
| } |
| } |
| |
| <span class="kw">fn </span>toint_2(s: <span class="kw-2">&</span>[u8]) -> <span class="prelude-ty">Result</span><u8, Error> { |
| <span class="kw">let </span>high = s[<span class="number">0</span>].wrapping_sub(<span class="string">b'0'</span>); |
| <span class="kw">let </span>low = s[<span class="number">1</span>].wrapping_sub(<span class="string">b'0'</span>); |
| |
| <span class="kw">if </span>high < <span class="number">10 </span>&& low < <span class="number">10 </span>{ |
| <span class="prelude-val">Ok</span>(high * <span class="number">10 </span>+ low) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Err</span>(Error(())) |
| } |
| } |
| |
| <span class="attribute">#[allow(clippy::many_single_char_names)] |
| </span><span class="kw">fn </span>toint_4(s: <span class="kw-2">&</span>[u8]) -> <span class="prelude-ty">Result</span><u16, Error> { |
| <span class="kw">let </span>a = u16::from(s[<span class="number">0</span>].wrapping_sub(<span class="string">b'0'</span>)); |
| <span class="kw">let </span>b = u16::from(s[<span class="number">1</span>].wrapping_sub(<span class="string">b'0'</span>)); |
| <span class="kw">let </span>c = u16::from(s[<span class="number">2</span>].wrapping_sub(<span class="string">b'0'</span>)); |
| <span class="kw">let </span>d = u16::from(s[<span class="number">3</span>].wrapping_sub(<span class="string">b'0'</span>)); |
| |
| <span class="kw">if </span>a < <span class="number">10 </span>&& b < <span class="number">10 </span>&& c < <span class="number">10 </span>&& d < <span class="number">10 </span>{ |
| <span class="prelude-val">Ok</span>(a * <span class="number">1000 </span>+ b * <span class="number">100 </span>+ c * <span class="number">10 </span>+ d) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Err</span>(Error(())) |
| } |
| } |
| |
| <span class="kw">fn </span>parse_imf_fixdate(s: <span class="kw-2">&</span>[u8]) -> <span class="prelude-ty">Result</span><HttpDate, Error> { |
| <span class="comment">// Example: `Sun, 06 Nov 1994 08:49:37 GMT` |
| </span><span class="kw">if </span>s.len() != <span class="number">29 </span>|| <span class="kw-2">&</span>s[<span class="number">25</span>..] != <span class="string">b" GMT" </span>|| s[<span class="number">16</span>] != <span class="string">b' ' </span>|| s[<span class="number">19</span>] != <span class="string">b':' </span>|| s[<span class="number">22</span>] != <span class="string">b':' </span>{ |
| <span class="kw">return </span><span class="prelude-val">Err</span>(Error(())); |
| } |
| <span class="prelude-val">Ok</span>(HttpDate { |
| sec: toint_2(<span class="kw-2">&</span>s[<span class="number">23</span>..<span class="number">25</span>])<span class="question-mark">?</span>, |
| min: toint_2(<span class="kw-2">&</span>s[<span class="number">20</span>..<span class="number">22</span>])<span class="question-mark">?</span>, |
| hour: toint_2(<span class="kw-2">&</span>s[<span class="number">17</span>..<span class="number">19</span>])<span class="question-mark">?</span>, |
| day: toint_2(<span class="kw-2">&</span>s[<span class="number">5</span>..<span class="number">7</span>])<span class="question-mark">?</span>, |
| mon: <span class="kw">match </span><span class="kw-2">&</span>s[<span class="number">7</span>..<span class="number">12</span>] { |
| <span class="string">b" Jan " </span>=> <span class="number">1</span>, |
| <span class="string">b" Feb " </span>=> <span class="number">2</span>, |
| <span class="string">b" Mar " </span>=> <span class="number">3</span>, |
| <span class="string">b" Apr " </span>=> <span class="number">4</span>, |
| <span class="string">b" May " </span>=> <span class="number">5</span>, |
| <span class="string">b" Jun " </span>=> <span class="number">6</span>, |
| <span class="string">b" Jul " </span>=> <span class="number">7</span>, |
| <span class="string">b" Aug " </span>=> <span class="number">8</span>, |
| <span class="string">b" Sep " </span>=> <span class="number">9</span>, |
| <span class="string">b" Oct " </span>=> <span class="number">10</span>, |
| <span class="string">b" Nov " </span>=> <span class="number">11</span>, |
| <span class="string">b" Dec " </span>=> <span class="number">12</span>, |
| <span class="kw">_ </span>=> <span class="kw">return </span><span class="prelude-val">Err</span>(Error(())), |
| }, |
| year: toint_4(<span class="kw-2">&</span>s[<span class="number">12</span>..<span class="number">16</span>])<span class="question-mark">?</span>, |
| wday: <span class="kw">match </span><span class="kw-2">&</span>s[..<span class="number">5</span>] { |
| <span class="string">b"Mon, " </span>=> <span class="number">1</span>, |
| <span class="string">b"Tue, " </span>=> <span class="number">2</span>, |
| <span class="string">b"Wed, " </span>=> <span class="number">3</span>, |
| <span class="string">b"Thu, " </span>=> <span class="number">4</span>, |
| <span class="string">b"Fri, " </span>=> <span class="number">5</span>, |
| <span class="string">b"Sat, " </span>=> <span class="number">6</span>, |
| <span class="string">b"Sun, " </span>=> <span class="number">7</span>, |
| <span class="kw">_ </span>=> <span class="kw">return </span><span class="prelude-val">Err</span>(Error(())), |
| }, |
| }) |
| } |
| |
| <span class="kw">fn </span>parse_rfc850_date(s: <span class="kw-2">&</span>[u8]) -> <span class="prelude-ty">Result</span><HttpDate, Error> { |
| <span class="comment">// Example: `Sunday, 06-Nov-94 08:49:37 GMT` |
| </span><span class="kw">if </span>s.len() < <span class="number">23 </span>{ |
| <span class="kw">return </span><span class="prelude-val">Err</span>(Error(())); |
| } |
| |
| <span class="kw">fn </span>wday<<span class="lifetime">'a</span>>(s: <span class="kw-2">&</span><span class="lifetime">'a </span>[u8], wday: u8, name: <span class="kw-2">&</span><span class="lifetime">'static </span>[u8]) -> <span class="prelude-ty">Option</span><(u8, <span class="kw-2">&</span><span class="lifetime">'a </span>[u8])> { |
| <span class="kw">if </span><span class="kw-2">&</span>s[<span class="number">0</span>..name.len()] == name { |
| <span class="kw">return </span><span class="prelude-val">Some</span>((wday, <span class="kw-2">&</span>s[name.len()..])); |
| } |
| <span class="prelude-val">None |
| </span>} |
| <span class="kw">let </span>(wday, s) = wday(s, <span class="number">1</span>, <span class="string">b"Monday, "</span>) |
| .or_else(|| wday(s, <span class="number">2</span>, <span class="string">b"Tuesday, "</span>)) |
| .or_else(|| wday(s, <span class="number">3</span>, <span class="string">b"Wednesday, "</span>)) |
| .or_else(|| wday(s, <span class="number">4</span>, <span class="string">b"Thursday, "</span>)) |
| .or_else(|| wday(s, <span class="number">5</span>, <span class="string">b"Friday, "</span>)) |
| .or_else(|| wday(s, <span class="number">6</span>, <span class="string">b"Saturday, "</span>)) |
| .or_else(|| wday(s, <span class="number">7</span>, <span class="string">b"Sunday, "</span>)) |
| .ok_or(Error(()))<span class="question-mark">?</span>; |
| <span class="kw">if </span>s.len() != <span class="number">22 </span>|| s[<span class="number">12</span>] != <span class="string">b':' </span>|| s[<span class="number">15</span>] != <span class="string">b':' </span>|| <span class="kw-2">&</span>s[<span class="number">18</span>..<span class="number">22</span>] != <span class="string">b" GMT" </span>{ |
| <span class="kw">return </span><span class="prelude-val">Err</span>(Error(())); |
| } |
| <span class="kw">let </span><span class="kw-2">mut </span>year = u16::from(toint_2(<span class="kw-2">&</span>s[<span class="number">7</span>..<span class="number">9</span>])<span class="question-mark">?</span>); |
| <span class="kw">if </span>year < <span class="number">70 </span>{ |
| year += <span class="number">2000</span>; |
| } <span class="kw">else </span>{ |
| year += <span class="number">1900</span>; |
| } |
| <span class="prelude-val">Ok</span>(HttpDate { |
| sec: toint_2(<span class="kw-2">&</span>s[<span class="number">16</span>..<span class="number">18</span>])<span class="question-mark">?</span>, |
| min: toint_2(<span class="kw-2">&</span>s[<span class="number">13</span>..<span class="number">15</span>])<span class="question-mark">?</span>, |
| hour: toint_2(<span class="kw-2">&</span>s[<span class="number">10</span>..<span class="number">12</span>])<span class="question-mark">?</span>, |
| day: toint_2(<span class="kw-2">&</span>s[<span class="number">0</span>..<span class="number">2</span>])<span class="question-mark">?</span>, |
| mon: <span class="kw">match </span><span class="kw-2">&</span>s[<span class="number">2</span>..<span class="number">7</span>] { |
| <span class="string">b"-Jan-" </span>=> <span class="number">1</span>, |
| <span class="string">b"-Feb-" </span>=> <span class="number">2</span>, |
| <span class="string">b"-Mar-" </span>=> <span class="number">3</span>, |
| <span class="string">b"-Apr-" </span>=> <span class="number">4</span>, |
| <span class="string">b"-May-" </span>=> <span class="number">5</span>, |
| <span class="string">b"-Jun-" </span>=> <span class="number">6</span>, |
| <span class="string">b"-Jul-" </span>=> <span class="number">7</span>, |
| <span class="string">b"-Aug-" </span>=> <span class="number">8</span>, |
| <span class="string">b"-Sep-" </span>=> <span class="number">9</span>, |
| <span class="string">b"-Oct-" </span>=> <span class="number">10</span>, |
| <span class="string">b"-Nov-" </span>=> <span class="number">11</span>, |
| <span class="string">b"-Dec-" </span>=> <span class="number">12</span>, |
| <span class="kw">_ </span>=> <span class="kw">return </span><span class="prelude-val">Err</span>(Error(())), |
| }, |
| year, |
| wday, |
| }) |
| } |
| |
| <span class="kw">fn </span>parse_asctime(s: <span class="kw-2">&</span>[u8]) -> <span class="prelude-ty">Result</span><HttpDate, Error> { |
| <span class="comment">// Example: `Sun Nov 6 08:49:37 1994` |
| </span><span class="kw">if </span>s.len() != <span class="number">24 </span>|| s[<span class="number">10</span>] != <span class="string">b' ' </span>|| s[<span class="number">13</span>] != <span class="string">b':' </span>|| s[<span class="number">16</span>] != <span class="string">b':' </span>|| s[<span class="number">19</span>] != <span class="string">b' ' </span>{ |
| <span class="kw">return </span><span class="prelude-val">Err</span>(Error(())); |
| } |
| <span class="prelude-val">Ok</span>(HttpDate { |
| sec: toint_2(<span class="kw-2">&</span>s[<span class="number">17</span>..<span class="number">19</span>])<span class="question-mark">?</span>, |
| min: toint_2(<span class="kw-2">&</span>s[<span class="number">14</span>..<span class="number">16</span>])<span class="question-mark">?</span>, |
| hour: toint_2(<span class="kw-2">&</span>s[<span class="number">11</span>..<span class="number">13</span>])<span class="question-mark">?</span>, |
| day: { |
| <span class="kw">let </span>x = <span class="kw-2">&</span>s[<span class="number">8</span>..<span class="number">10</span>]; |
| { |
| <span class="kw">if </span>x[<span class="number">0</span>] == <span class="string">b' ' </span>{ |
| toint_1(x[<span class="number">1</span>]) |
| } <span class="kw">else </span>{ |
| toint_2(x) |
| } |
| }<span class="question-mark">? |
| </span>}, |
| mon: <span class="kw">match </span><span class="kw-2">&</span>s[<span class="number">4</span>..<span class="number">8</span>] { |
| <span class="string">b"Jan " </span>=> <span class="number">1</span>, |
| <span class="string">b"Feb " </span>=> <span class="number">2</span>, |
| <span class="string">b"Mar " </span>=> <span class="number">3</span>, |
| <span class="string">b"Apr " </span>=> <span class="number">4</span>, |
| <span class="string">b"May " </span>=> <span class="number">5</span>, |
| <span class="string">b"Jun " </span>=> <span class="number">6</span>, |
| <span class="string">b"Jul " </span>=> <span class="number">7</span>, |
| <span class="string">b"Aug " </span>=> <span class="number">8</span>, |
| <span class="string">b"Sep " </span>=> <span class="number">9</span>, |
| <span class="string">b"Oct " </span>=> <span class="number">10</span>, |
| <span class="string">b"Nov " </span>=> <span class="number">11</span>, |
| <span class="string">b"Dec " </span>=> <span class="number">12</span>, |
| <span class="kw">_ </span>=> <span class="kw">return </span><span class="prelude-val">Err</span>(Error(())), |
| }, |
| year: toint_4(<span class="kw-2">&</span>s[<span class="number">20</span>..<span class="number">24</span>])<span class="question-mark">?</span>, |
| wday: <span class="kw">match </span><span class="kw-2">&</span>s[<span class="number">0</span>..<span class="number">4</span>] { |
| <span class="string">b"Mon " </span>=> <span class="number">1</span>, |
| <span class="string">b"Tue " </span>=> <span class="number">2</span>, |
| <span class="string">b"Wed " </span>=> <span class="number">3</span>, |
| <span class="string">b"Thu " </span>=> <span class="number">4</span>, |
| <span class="string">b"Fri " </span>=> <span class="number">5</span>, |
| <span class="string">b"Sat " </span>=> <span class="number">6</span>, |
| <span class="string">b"Sun " </span>=> <span class="number">7</span>, |
| <span class="kw">_ </span>=> <span class="kw">return </span><span class="prelude-val">Err</span>(Error(())), |
| }, |
| }) |
| } |
| |
| <span class="kw">fn </span>is_leap_year(y: u16) -> bool { |
| y % <span class="number">4 </span>== <span class="number">0 </span>&& (y % <span class="number">100 </span>!= <span class="number">0 </span>|| y % <span class="number">400 </span>== <span class="number">0</span>) |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="httpdate" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
