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diff --git a/target/doc/src/mailparse/dateparse.rs.html b/target/doc/src/mailparse/dateparse.rs.html new file mode 100644 index 0000000..277ebd0 --- /dev/null +++ b/target/doc/src/mailparse/dateparse.rs.html @@ -0,0 +1,528 @@ +<!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 to the Rust file `src/dateparse.rs`."> + <meta name="keywords" content="rust, rustlang, rust-lang"> + + <title>dateparse.rs.html -- source</title> + + <link rel="stylesheet" type="text/css" href="../../normalize.css"> + <link rel="stylesheet" type="text/css" href="../../rustdoc.css"> + <link rel="stylesheet" type="text/css" href="../../main.css"> + + + + +</head> +<body class="rustdoc source"> + <!--[if lte IE 8]> + <div class="warning"> + This old browser is unsupported and will most likely display funky + things. + </div> + <![endif]--> + 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class="ident">DateParseState</span> { + <span class="ident">Date</span>, + <span class="ident">Month</span>, + <span class="ident">Year</span>, + <span class="ident">Hour</span>, + <span class="ident">Minute</span>, + <span class="ident">Second</span>, + <span class="ident">Timezone</span>, +} + +<span class="kw">fn</span> <span class="ident">days_in_month</span>(<span class="ident">month</span>: <span class="ident">i64</span>, <span class="ident">year</span>: <span class="ident">i64</span>) <span class="op">-></span> <span class="ident">i64</span> { + <span class="kw">match</span> <span class="ident">month</span> { + <span class="number">0</span> <span class="op">|</span> <span class="number">2</span> <span class="op">|</span> <span class="number">4</span> <span class="op">|</span> <span class="number">6</span> <span class="op">|</span> <span class="number">7</span> <span class="op">|</span> <span class="number">9</span> <span class="op">|</span> <span class="number">11</span> <span class="op">=></span> <span class="number">31</span>, + <span class="number">3</span> <span class="op">|</span> <span class="number">5</span> <span class="op">|</span> <span class="number">8</span> <span class="op">|</span> <span class="number">10</span> <span class="op">=></span> <span class="number">30</span>, + <span class="number">1</span> <span class="op">=></span> { + <span class="kw">if</span> (<span class="ident">year</span> <span class="op">%</span> <span class="number">400</span>) <span class="op">==</span> <span class="number">0</span> { + <span class="number">29</span> + } <span class="kw">else</span> <span class="kw">if</span> (<span class="ident">year</span> <span class="op">%</span> <span class="number">100</span>) <span class="op">==</span> <span class="number">0</span> { + <span class="number">28</span> + } <span class="kw">else</span> <span class="kw">if</span> (<span class="ident">year</span> <span class="op">%</span> <span class="number">4</span>) <span class="op">==</span> <span class="number">0</span> { + <span class="number">29</span> + } <span class="kw">else</span> { + <span class="number">28</span> + } + } + _ <span class="op">=></span> <span class="number">0</span>, + } +} + +<span class="kw">fn</span> <span class="ident">seconds_to_date</span>(<span class="ident">year</span>: <span class="ident">i64</span>, <span class="ident">month</span>: <span class="ident">i64</span>, <span class="ident">day</span>: <span class="ident">i64</span>) <span class="op">-></span> <span class="ident">i64</span> { + <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">result</span>: <span class="ident">i64</span> <span class="op">=</span> <span class="number">0</span>; + <span class="kw">for</span> <span class="ident">y</span> <span class="kw">in</span> <span class="number">1970</span>..<span class="number">2001</span> { + <span class="kw">if</span> <span class="ident">y</span> <span class="op">==</span> <span class="ident">year</span> { + <span class="kw">break</span>; + } + <span class="ident">result</span> <span class="op">+=</span> <span class="number">86400</span> <span class="op">*</span> <span class="number">365</span>; + <span class="kw">if</span> (<span class="ident">y</span> <span class="op">%</span> <span class="number">4</span>) <span class="op">==</span> <span class="number">0</span> { + <span class="ident">result</span> <span class="op">+=</span> <span class="number">86400</span>; + } + } + <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">y</span> <span class="op">=</span> <span class="number">2001</span>; + <span class="kw">while</span> <span class="ident">y</span> <span class="op"><</span> <span class="ident">year</span> { + <span class="kw">if</span> <span class="ident">year</span> <span class="op">-</span> <span class="ident">y</span> <span class="op">>=</span> <span class="number">400</span> { + <span class="ident">result</span> <span class="op">+=</span> (<span class="number">86400</span> <span class="op">*</span> <span class="number">365</span> <span class="op">*</span> <span class="number">400</span>) <span class="op">+</span> (<span class="number">86400</span> <span class="op">*</span> <span class="number">97</span>); + <span class="ident">y</span> <span class="op">+=</span> <span class="number">400</span>; + <span class="kw">continue</span>; + } + <span class="kw">if</span> <span class="ident">year</span> <span class="op">-</span> <span class="ident">y</span> <span class="op">>=</span> <span class="number">100</span> { + <span class="ident">result</span> <span class="op">+=</span> (<span class="number">86400</span> <span class="op">*</span> <span class="number">365</span> <span class="op">*</span> <span class="number">100</span>) <span class="op">+</span> (<span class="number">86400</span> <span class="op">*</span> <span class="number">24</span>); + <span class="ident">y</span> <span class="op">+=</span> <span class="number">100</span>; + <span class="kw">continue</span>; + } + <span class="kw">if</span> <span class="ident">year</span> <span class="op">-</span> <span class="ident">y</span> <span class="op">>=</span> <span class="number">4</span> { + <span class="ident">result</span> <span class="op">+=</span> (<span class="number">86400</span> <span class="op">*</span> <span class="number">365</span> <span class="op">*</span> <span class="number">4</span>) <span class="op">+</span> (<span class="number">86400</span>); + <span class="ident">y</span> <span class="op">+=</span> <span class="number">4</span>; + <span class="kw">continue</span>; + } + <span class="ident">result</span> <span class="op">+=</span> <span class="number">86400</span> <span class="op">*</span> <span class="number">365</span>; + <span class="ident">y</span> <span class="op">+=</span> <span class="number">1</span>; + } + <span class="kw">for</span> <span class="ident">m</span> <span class="kw">in</span> <span class="number">0</span>..<span class="ident">month</span> { + <span class="ident">result</span> <span class="op">+=</span> <span class="number">86400</span> <span class="op">*</span> <span class="ident">days_in_month</span>(<span class="ident">m</span>, <span class="ident">year</span>) + } + <span class="ident">result</span> <span class="op">+</span> <span class="number">86400</span> <span class="op">*</span> (<span class="ident">day</span> <span class="op">-</span> <span class="number">1</span>) +} + +<span class="doccomment">/// Convert a date field from an email header into a UNIX epoch timestamp.</span> +<span class="doccomment">/// This function handles the most common formatting of date fields found in</span> +<span class="doccomment">/// email headers. It may fail to parse some of the more creative formattings.</span> +<span class="doccomment">///</span> +<span class="doccomment">/// # Examples</span> +<span class="doccomment">/// ```</span> +<span class="doccomment">/// use mailparse::dateparse;</span> +<span class="doccomment">/// assert_eq!(dateparse("Sun, 02 Oct 2016 07:06:22 -0700 (PDT)").unwrap(), 1475417182);</span> +<span class="doccomment">/// ```</span> +<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">dateparse</span>(<span class="ident">date</span>: <span class="kw-2">&</span><span class="ident">str</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">i64</span>, <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span><span class="op">></span> { + <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">result</span> <span class="op">=</span> <span class="number">0</span>; + <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">month</span> <span class="op">=</span> <span class="number">0</span>; + <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">day_of_month</span> <span class="op">=</span> <span class="number">0</span>; + <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">state</span> <span class="op">=</span> <span class="ident">DateParseState</span>::<span class="ident">Date</span>; + <span class="kw">for</span> <span class="ident">tok</span> <span class="kw">in</span> <span class="ident">date</span>.<span class="ident">split</span>(<span class="op">|</span><span class="ident">c</span><span class="op">|</span> <span class="ident">c</span> <span class="op">==</span> <span class="string">' '</span> <span class="op">||</span> <span class="ident">c</span> <span class="op">==</span> <span class="string">':'</span>) { + <span class="kw">if</span> <span class="ident">tok</span>.<span class="ident">is_empty</span>() { + <span class="kw">continue</span>; + } + <span class="kw">match</span> <span class="ident">state</span> { + <span class="ident">DateParseState</span>::<span class="ident">Date</span> <span class="op">=></span> { + <span class="kw">match</span> <span class="ident">tok</span>.<span class="ident">parse</span>::<span class="op"><</span><span class="ident">u8</span><span class="op">></span>() { + <span class="prelude-val">Ok</span>(<span class="ident">v</span>) <span class="op">=></span> { + <span class="ident">day_of_month</span> <span class="op">=</span> <span class="ident">v</span>; + <span class="ident">state</span> <span class="op">=</span> <span class="ident">DateParseState</span>::<span class="ident">Month</span>; + } + <span class="prelude-val">Err</span>(_) <span class="op">=></span> (), + }; + <span class="kw">continue</span>; + } + <span class="ident">DateParseState</span>::<span class="ident">Month</span> <span class="op">=></span> { + <span class="ident">month</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">tok</span>.<span class="ident">to_uppercase</span>().<span class="ident">as_str</span>() { + <span class="string">"JAN"</span> <span class="op">|</span> <span class="string">"JANUARY"</span> <span class="op">=></span> <span class="number">0</span>, + <span class="string">"FEB"</span> <span class="op">|</span> <span class="string">"FEBRUARY"</span> <span class="op">=></span> <span class="number">1</span>, + <span class="string">"MAR"</span> <span class="op">|</span> <span class="string">"MARCH"</span> <span class="op">=></span> <span class="number">2</span>, + <span class="string">"APR"</span> <span class="op">|</span> <span class="string">"APRIL"</span> <span class="op">=></span> <span class="number">3</span>, + <span class="string">"MAY"</span> <span class="op">=></span> <span class="number">4</span>, + <span class="string">"JUN"</span> <span class="op">|</span> <span class="string">"JUNE"</span> <span class="op">=></span> <span class="number">5</span>, + <span class="string">"JUL"</span> <span class="op">|</span> <span class="string">"JULY"</span> <span class="op">=></span> <span class="number">6</span>, + <span class="string">"AUG"</span> <span class="op">|</span> <span class="string">"AUGUST"</span> <span class="op">=></span> <span class="number">7</span>, + <span class="string">"SEP"</span> <span class="op">|</span> <span class="string">"SEPTEMBER"</span> <span class="op">=></span> <span class="number">8</span>, + <span class="string">"OCT"</span> <span class="op">|</span> <span class="string">"OCTOBER"</span> <span class="op">=></span> <span class="number">9</span>, + <span class="string">"NOV"</span> <span class="op">|</span> <span class="string">"NOVEMBER"</span> <span class="op">=></span> <span class="number">10</span>, + <span class="string">"DEC"</span> <span class="op">|</span> <span class="string">"DECEMBER"</span> <span class="op">=></span> <span class="number">11</span>, + _ <span class="op">=></span> <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="string">"Unrecognized month"</span>), + }; + <span class="ident">state</span> <span class="op">=</span> <span class="ident">DateParseState</span>::<span class="ident">Year</span>; + <span class="kw">continue</span>; + } + <span class="ident">DateParseState</span>::<span class="ident">Year</span> <span class="op">=></span> { + <span class="kw">let</span> <span class="ident">year</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">tok</span>.<span class="ident">parse</span>::<span class="op"><</span><span class="ident">u32</span><span class="op">></span>() { + <span class="prelude-val">Ok</span>(<span class="ident">v</span>) <span class="kw">if</span> <span class="ident">v</span> <span class="op"><</span> <span class="number">70</span> <span class="op">=></span> <span class="number">2000</span> <span class="op">+</span> <span class="ident">v</span>, + <span class="prelude-val">Ok</span>(<span class="ident">v</span>) <span class="kw">if</span> <span class="ident">v</span> <span class="op"><</span> <span class="number">100</span> <span class="op">=></span> <span class="number">1900</span> <span class="op">+</span> <span class="ident">v</span>, + <span class="prelude-val">Ok</span>(<span class="ident">v</span>) <span class="kw">if</span> <span class="ident">v</span> <span class="op"><</span> <span class="number">1970</span> <span class="op">=></span> <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="string">"Disallowed year"</span>), + <span class="prelude-val">Ok</span>(<span class="ident">v</span>) <span class="op">=></span> <span class="ident">v</span>, + <span class="prelude-val">Err</span>(_) <span class="op">=></span> <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="string">"Invalid year"</span>), + }; + <span class="ident">result</span> <span class="op">=</span> <span class="ident">seconds_to_date</span>(<span class="ident">year</span> <span class="kw">as</span> <span class="ident">i64</span>, <span class="ident">month</span> <span class="kw">as</span> <span class="ident">i64</span>, <span class="ident">day_of_month</span> <span class="kw">as</span> <span class="ident">i64</span>); + <span class="ident">state</span> <span class="op">=</span> <span class="ident">DateParseState</span>::<span class="ident">Hour</span>; + <span class="kw">continue</span>; + } + <span class="ident">DateParseState</span>::<span class="ident">Hour</span> <span class="op">=></span> { + <span class="kw">let</span> <span class="ident">hour</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">tok</span>.<span class="ident">parse</span>::<span class="op"><</span><span class="ident">u8</span><span class="op">></span>() { + <span class="prelude-val">Ok</span>(<span class="ident">v</span>) <span class="op">=></span> <span class="ident">v</span>, + <span class="prelude-val">Err</span>(_) <span class="op">=></span> <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="string">"Invalid hour"</span>), + }; + <span class="ident">result</span> <span class="op">+=</span> <span class="number">3600</span> <span class="op">*</span> (<span class="ident">hour</span> <span class="kw">as</span> <span class="ident">i64</span>); + <span class="ident">state</span> <span class="op">=</span> <span class="ident">DateParseState</span>::<span class="ident">Minute</span>; + <span class="kw">continue</span>; + } + <span class="ident">DateParseState</span>::<span class="ident">Minute</span> <span class="op">=></span> { + <span class="kw">let</span> <span class="ident">minute</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">tok</span>.<span class="ident">parse</span>::<span class="op"><</span><span class="ident">u8</span><span class="op">></span>() { + <span class="prelude-val">Ok</span>(<span class="ident">v</span>) <span class="op">=></span> <span class="ident">v</span>, + <span class="prelude-val">Err</span>(_) <span class="op">=></span> <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="string">"Invalid minute"</span>), + }; + <span class="ident">result</span> <span class="op">+=</span> <span class="number">60</span> <span class="op">*</span> (<span class="ident">minute</span> <span class="kw">as</span> <span class="ident">i64</span>); + <span class="ident">state</span> <span class="op">=</span> <span class="ident">DateParseState</span>::<span class="ident">Second</span>; + <span class="kw">continue</span>; + } + <span class="ident">DateParseState</span>::<span class="ident">Second</span> <span class="op">=></span> { + <span class="kw">let</span> <span class="ident">second</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">tok</span>.<span class="ident">parse</span>::<span class="op"><</span><span class="ident">u8</span><span class="op">></span>() { + <span class="prelude-val">Ok</span>(<span class="ident">v</span>) <span class="op">=></span> <span class="ident">v</span>, + <span class="prelude-val">Err</span>(_) <span class="op">=></span> <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="string">"Invalid second"</span>), + }; + <span class="ident">result</span> <span class="op">+=</span> <span class="ident">second</span> <span class="kw">as</span> <span class="ident">i64</span>; + <span class="ident">state</span> <span class="op">=</span> <span class="ident">DateParseState</span>::<span class="ident">Timezone</span>; + <span class="kw">continue</span>; + } + <span class="ident">DateParseState</span>::<span class="ident">Timezone</span> <span class="op">=></span> { + <span class="kw">let</span> (<span class="ident">tz</span>, <span class="ident">tz_sign</span>) <span class="op">=</span> <span class="kw">match</span> <span class="ident">tok</span>.<span class="ident">parse</span>::<span class="op"><</span><span class="ident">i32</span><span class="op">></span>() { + <span class="prelude-val">Ok</span>(<span class="ident">v</span>) <span class="kw">if</span> <span class="ident">v</span> <span class="op"><</span> <span class="number">0</span> <span class="op">=></span> (<span class="op">-</span><span class="ident">v</span>, <span class="op">-</span><span class="number">1</span>), + <span class="prelude-val">Ok</span>(<span class="ident">v</span>) <span class="op">=></span> (<span class="ident">v</span>, <span class="number">1</span>), + <span class="prelude-val">Err</span>(_) <span class="op">=></span> { + <span class="kw">match</span> <span class="ident">tok</span>.<span class="ident">to_uppercase</span>().<span class="ident">as_str</span>() { + <span class="comment">// This list taken from IETF RFC 822</span> + <span class="string">"UTC"</span> <span class="op">|</span> <span class="string">"UT"</span> <span class="op">|</span> <span class="string">"GMT"</span> <span class="op">|</span> <span class="string">"Z"</span> <span class="op">=></span> (<span class="number">0</span>, <span class="number">1</span>), + <span class="string">"EDT"</span> <span class="op">=></span> (<span class="number">400</span>, <span class="op">-</span><span class="number">1</span>), + <span class="string">"EST"</span> <span class="op">|</span> <span class="string">"CDT"</span> <span class="op">=></span> (<span class="number">500</span>, <span class="op">-</span><span class="number">1</span>), + <span class="string">"CST"</span> <span class="op">|</span> <span class="string">"MDT"</span> <span class="op">=></span> (<span class="number">600</span>, <span class="op">-</span><span class="number">1</span>), + <span class="string">"MST"</span> <span class="op">|</span> <span class="string">"PDT"</span> <span class="op">=></span> (<span class="number">700</span>, <span class="op">-</span><span class="number">1</span>), + <span class="string">"PST"</span> <span class="op">=></span> (<span class="number">800</span>, <span class="op">-</span><span class="number">1</span>), + <span class="string">"A"</span> <span class="op">=></span> (<span class="number">100</span>, <span class="op">-</span><span class="number">1</span>), + <span class="string">"M"</span> <span class="op">=></span> (<span class="number">1200</span>, <span class="op">-</span><span class="number">1</span>), + <span class="string">"N"</span> <span class="op">=></span> (<span class="number">100</span>, <span class="number">1</span>), + <span class="string">"Y"</span> <span class="op">=></span> (<span class="number">1200</span>, <span class="number">1</span>), + _ <span class="op">=></span> <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="string">"Invalid timezone"</span>), + } + } + }; + <span class="kw">let</span> <span class="ident">tz_hours</span> <span class="op">=</span> <span class="ident">tz</span> <span class="op">/</span> <span class="number">100</span>; + <span class="kw">let</span> <span class="ident">tz_mins</span> <span class="op">=</span> <span class="ident">tz</span> <span class="op">%</span> <span class="number">100</span>; + <span class="kw">let</span> <span class="ident">tz_delta</span> <span class="op">=</span> (<span class="ident">tz_hours</span> <span class="op">*</span> <span class="number">3600</span>) <span class="op">+</span> (<span class="ident">tz_mins</span> <span class="op">*</span> <span class="number">60</span>); + <span class="kw">if</span> <span class="ident">tz_sign</span> <span class="op"><</span> <span class="number">0</span> { + <span class="ident">result</span> <span class="op">+=</span> <span class="ident">tz_delta</span> <span class="kw">as</span> <span class="ident">i64</span>; + } <span class="kw">else</span> { + <span class="ident">result</span> <span class="op">-=</span> <span class="ident">tz_delta</span> <span class="kw">as</span> <span class="ident">i64</span>; + } + <span class="kw">break</span>; + } + } + } + <span class="prelude-val">Ok</span>(<span class="ident">result</span>) +} + +<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">test</span>)]</span> +<span class="kw">mod</span> <span class="ident">tests</span> { + <span class="kw">use</span> <span class="kw">super</span>::<span class="kw-2">*</span>; + + <span class="attribute">#[<span class="ident">test</span>]</span> + <span class="kw">fn</span> <span class="ident">parse_dates</span>() { + <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dateparse</span>(<span class="string">"Sun, 25 Sep 2016 18:36:33 -0400"</span>).<span class="ident">unwrap</span>(), + <span class="number">1474842993</span>); + <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dateparse</span>(<span class="string">"Fri, 01 Jan 2100 11:12:13 +0000"</span>).<span class="ident">unwrap</span>(), + <span class="number">4102485133</span>); + <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dateparse</span>(<span class="string">"Fri, 31 Dec 2100 00:00:00 +0000"</span>).<span class="ident">unwrap</span>(), + <span class="number">4133894400</span>); + <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dateparse</span>(<span class="string">"Fri, 31 Dec 2399 00:00:00 +0000"</span>).<span class="ident">unwrap</span>(), + <span class="number">13569379200</span>); + <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dateparse</span>(<span class="string">"Fri, 31 Dec 2400 00:00:00 +0000"</span>).<span class="ident">unwrap</span>(), + <span class="number">13601001600</span>); + <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dateparse</span>(<span class="string">"17 Sep 2016 16:05:38 -1000"</span>).<span class="ident">unwrap</span>(), <span class="number">1474164338</span>); + <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dateparse</span>(<span class="string">"Fri, 30 Nov 2012 20:57:23 GMT"</span>).<span class="ident">unwrap</span>(), + <span class="number">1354309043</span>); + } +} +</pre> +</section> + <section id='search' class="content hidden"></section> + + <section class="footer"></section> + + <aside id="help" class="hidden"> + <div> + <h1 class="hidden">Help</h1> + + <div class="shortcuts"> + <h2>Keyboard Shortcuts</h2> + + <dl> + <dt>?</dt> + <dd>Show this help dialog</dd> + <dt>S</dt> + <dd>Focus the search field</dd> + <dt>⇤</dt> + <dd>Move up in search results</dd> + <dt>⇥</dt> + <dd>Move down in search results</dd> + <dt>⏎</dt> + <dd>Go to active search result</dd> + <dt |