| <!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/aho-corasick-1.0.2/src/packed/teddy/compile.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>compile.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="../../../../aho_corasick/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="../../../../aho_corasick/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> |
| <span id="2">2</span> |
| <span id="3">3</span> |
| <span id="4">4</span> |
| <span id="5">5</span> |
| <span id="6">6</span> |
| <span id="7">7</span> |
| <span id="8">8</span> |
| <span id="9">9</span> |
| <span id="10">10</span> |
| <span id="11">11</span> |
| <span id="12">12</span> |
| <span id="13">13</span> |
| <span id="14">14</span> |
| <span id="15">15</span> |
| <span id="16">16</span> |
| <span id="17">17</span> |
| <span id="18">18</span> |
| <span id="19">19</span> |
| <span id="20">20</span> |
| <span id="21">21</span> |
| <span id="22">22</span> |
| <span id="23">23</span> |
| <span id="24">24</span> |
| <span id="25">25</span> |
| <span id="26">26</span> |
| <span id="27">27</span> |
| <span id="28">28</span> |
| <span id="29">29</span> |
| <span id="30">30</span> |
| <span id="31">31</span> |
| <span id="32">32</span> |
| <span id="33">33</span> |
| <span id="34">34</span> |
| <span id="35">35</span> |
| <span id="36">36</span> |
| <span id="37">37</span> |
| <span id="38">38</span> |
| <span id="39">39</span> |
| <span id="40">40</span> |
| <span id="41">41</span> |
| <span id="42">42</span> |
| <span id="43">43</span> |
| <span id="44">44</span> |
| <span id="45">45</span> |
| <span id="46">46</span> |
| <span id="47">47</span> |
| <span id="48">48</span> |
| <span id="49">49</span> |
| <span id="50">50</span> |
| <span id="51">51</span> |
| <span id="52">52</span> |
| <span id="53">53</span> |
| <span id="54">54</span> |
| <span id="55">55</span> |
| <span id="56">56</span> |
| <span id="57">57</span> |
| <span id="58">58</span> |
| <span id="59">59</span> |
| <span id="60">60</span> |
| <span id="61">61</span> |
| <span id="62">62</span> |
| <span id="63">63</span> |
| <span id="64">64</span> |
| <span id="65">65</span> |
| <span id="66">66</span> |
| <span id="67">67</span> |
| <span id="68">68</span> |
| <span id="69">69</span> |
| <span id="70">70</span> |
| <span id="71">71</span> |
| <span id="72">72</span> |
| <span id="73">73</span> |
| <span id="74">74</span> |
| <span id="75">75</span> |
| <span id="76">76</span> |
| <span id="77">77</span> |
| <span id="78">78</span> |
| <span id="79">79</span> |
| <span id="80">80</span> |
| <span id="81">81</span> |
| <span id="82">82</span> |
| <span id="83">83</span> |
| <span id="84">84</span> |
| <span id="85">85</span> |
| <span id="86">86</span> |
| <span id="87">87</span> |
| <span id="88">88</span> |
| <span id="89">89</span> |
| <span id="90">90</span> |
| <span id="91">91</span> |
| <span id="92">92</span> |
| <span id="93">93</span> |
| <span id="94">94</span> |
| <span id="95">95</span> |
| <span id="96">96</span> |
| <span id="97">97</span> |
| <span id="98">98</span> |
| <span id="99">99</span> |
| <span id="100">100</span> |
| <span id="101">101</span> |
| <span id="102">102</span> |
| <span id="103">103</span> |
| <span id="104">104</span> |
| <span id="105">105</span> |
| <span id="106">106</span> |
| <span id="107">107</span> |
| <span id="108">108</span> |
| <span id="109">109</span> |
| <span id="110">110</span> |
| <span id="111">111</span> |
| <span id="112">112</span> |
| <span id="113">113</span> |
| <span id="114">114</span> |
| <span id="115">115</span> |
| <span id="116">116</span> |
| <span id="117">117</span> |
| <span id="118">118</span> |
| <span id="119">119</span> |
| <span id="120">120</span> |
| <span id="121">121</span> |
| <span id="122">122</span> |
| <span id="123">123</span> |
| <span id="124">124</span> |
| <span id="125">125</span> |
| <span id="126">126</span> |
| <span id="127">127</span> |
| <span id="128">128</span> |
| <span id="129">129</span> |
| <span id="130">130</span> |
| <span id="131">131</span> |
| <span id="132">132</span> |
| <span id="133">133</span> |
| <span id="134">134</span> |
| <span id="135">135</span> |
| <span id="136">136</span> |
| <span id="137">137</span> |
| <span id="138">138</span> |
| <span id="139">139</span> |
| <span id="140">140</span> |
| <span id="141">141</span> |
| <span id="142">142</span> |
| <span id="143">143</span> |
| <span id="144">144</span> |
| <span id="145">145</span> |
| <span id="146">146</span> |
| <span id="147">147</span> |
| <span id="148">148</span> |
| <span id="149">149</span> |
| <span id="150">150</span> |
| <span id="151">151</span> |
| <span id="152">152</span> |
| <span id="153">153</span> |
| <span id="154">154</span> |
| <span id="155">155</span> |
| <span id="156">156</span> |
| <span id="157">157</span> |
| <span id="158">158</span> |
| <span id="159">159</span> |
| <span id="160">160</span> |
| <span id="161">161</span> |
| <span id="162">162</span> |
| <span id="163">163</span> |
| <span id="164">164</span> |
| <span id="165">165</span> |
| <span id="166">166</span> |
| <span id="167">167</span> |
| <span id="168">168</span> |
| <span id="169">169</span> |
| <span id="170">170</span> |
| <span id="171">171</span> |
| <span id="172">172</span> |
| <span id="173">173</span> |
| <span id="174">174</span> |
| <span id="175">175</span> |
| <span id="176">176</span> |
| <span id="177">177</span> |
| <span id="178">178</span> |
| <span id="179">179</span> |
| <span id="180">180</span> |
| <span id="181">181</span> |
| <span id="182">182</span> |
| <span id="183">183</span> |
| <span id="184">184</span> |
| <span id="185">185</span> |
| <span id="186">186</span> |
| <span id="187">187</span> |
| <span id="188">188</span> |
| <span id="189">189</span> |
| <span id="190">190</span> |
| <span id="191">191</span> |
| <span id="192">192</span> |
| <span id="193">193</span> |
| <span id="194">194</span> |
| <span id="195">195</span> |
| <span id="196">196</span> |
| <span id="197">197</span> |
| <span id="198">198</span> |
| <span id="199">199</span> |
| <span id="200">200</span> |
| <span id="201">201</span> |
| <span id="202">202</span> |
| <span id="203">203</span> |
| <span id="204">204</span> |
| <span id="205">205</span> |
| <span id="206">206</span> |
| <span id="207">207</span> |
| <span id="208">208</span> |
| <span id="209">209</span> |
| <span id="210">210</span> |
| <span id="211">211</span> |
| <span id="212">212</span> |
| <span id="213">213</span> |
| <span id="214">214</span> |
| <span id="215">215</span> |
| <span id="216">216</span> |
| <span id="217">217</span> |
| <span id="218">218</span> |
| <span id="219">219</span> |
| <span id="220">220</span> |
| <span id="221">221</span> |
| <span id="222">222</span> |
| <span id="223">223</span> |
| <span id="224">224</span> |
| <span id="225">225</span> |
| <span id="226">226</span> |
| <span id="227">227</span> |
| <span id="228">228</span> |
| <span id="229">229</span> |
| <span id="230">230</span> |
| <span id="231">231</span> |
| <span id="232">232</span> |
| <span id="233">233</span> |
| <span id="234">234</span> |
| <span id="235">235</span> |
| <span id="236">236</span> |
| <span id="237">237</span> |
| <span id="238">238</span> |
| <span id="239">239</span> |
| <span id="240">240</span> |
| <span id="241">241</span> |
| <span id="242">242</span> |
| <span id="243">243</span> |
| <span id="244">244</span> |
| <span id="245">245</span> |
| <span id="246">246</span> |
| <span id="247">247</span> |
| <span id="248">248</span> |
| <span id="249">249</span> |
| <span id="250">250</span> |
| <span id="251">251</span> |
| <span id="252">252</span> |
| <span id="253">253</span> |
| <span id="254">254</span> |
| <span id="255">255</span> |
| <span id="256">256</span> |
| <span id="257">257</span> |
| <span id="258">258</span> |
| <span id="259">259</span> |
| <span id="260">260</span> |
| <span id="261">261</span> |
| <span id="262">262</span> |
| <span id="263">263</span> |
| <span id="264">264</span> |
| <span id="265">265</span> |
| <span id="266">266</span> |
| <span id="267">267</span> |
| <span id="268">268</span> |
| <span id="269">269</span> |
| <span id="270">270</span> |
| <span id="271">271</span> |
| <span id="272">272</span> |
| <span id="273">273</span> |
| <span id="274">274</span> |
| <span id="275">275</span> |
| <span id="276">276</span> |
| <span id="277">277</span> |
| <span id="278">278</span> |
| <span id="279">279</span> |
| <span id="280">280</span> |
| <span id="281">281</span> |
| <span id="282">282</span> |
| <span id="283">283</span> |
| <span id="284">284</span> |
| <span id="285">285</span> |
| <span id="286">286</span> |
| <span id="287">287</span> |
| <span id="288">288</span> |
| <span id="289">289</span> |
| <span id="290">290</span> |
| <span id="291">291</span> |
| <span id="292">292</span> |
| <span id="293">293</span> |
| <span id="294">294</span> |
| <span id="295">295</span> |
| <span id="296">296</span> |
| <span id="297">297</span> |
| <span id="298">298</span> |
| <span id="299">299</span> |
| <span id="300">300</span> |
| <span id="301">301</span> |
| <span id="302">302</span> |
| <span id="303">303</span> |
| <span id="304">304</span> |
| <span id="305">305</span> |
| <span id="306">306</span> |
| <span id="307">307</span> |
| <span id="308">308</span> |
| <span id="309">309</span> |
| <span id="310">310</span> |
| <span id="311">311</span> |
| <span id="312">312</span> |
| <span id="313">313</span> |
| <span id="314">314</span> |
| <span id="315">315</span> |
| <span id="316">316</span> |
| <span id="317">317</span> |
| <span id="318">318</span> |
| <span id="319">319</span> |
| <span id="320">320</span> |
| <span id="321">321</span> |
| <span id="322">322</span> |
| <span id="323">323</span> |
| <span id="324">324</span> |
| <span id="325">325</span> |
| <span id="326">326</span> |
| <span id="327">327</span> |
| <span id="328">328</span> |
| <span id="329">329</span> |
| <span id="330">330</span> |
| <span id="331">331</span> |
| <span id="332">332</span> |
| <span id="333">333</span> |
| <span id="334">334</span> |
| <span id="335">335</span> |
| <span id="336">336</span> |
| <span id="337">337</span> |
| <span id="338">338</span> |
| <span id="339">339</span> |
| <span id="340">340</span> |
| <span id="341">341</span> |
| <span id="342">342</span> |
| <span id="343">343</span> |
| <span id="344">344</span> |
| <span id="345">345</span> |
| <span id="346">346</span> |
| <span id="347">347</span> |
| <span id="348">348</span> |
| <span id="349">349</span> |
| <span id="350">350</span> |
| <span id="351">351</span> |
| <span id="352">352</span> |
| <span id="353">353</span> |
| <span id="354">354</span> |
| <span id="355">355</span> |
| <span id="356">356</span> |
| <span id="357">357</span> |
| <span id="358">358</span> |
| <span id="359">359</span> |
| <span id="360">360</span> |
| <span id="361">361</span> |
| <span id="362">362</span> |
| <span id="363">363</span> |
| <span id="364">364</span> |
| <span id="365">365</span> |
| <span id="366">366</span> |
| <span id="367">367</span> |
| <span id="368">368</span> |
| <span id="369">369</span> |
| <span id="370">370</span> |
| <span id="371">371</span> |
| <span id="372">372</span> |
| <span id="373">373</span> |
| <span id="374">374</span> |
| <span id="375">375</span> |
| <span id="376">376</span> |
| <span id="377">377</span> |
| <span id="378">378</span> |
| <span id="379">379</span> |
| <span id="380">380</span> |
| <span id="381">381</span> |
| <span id="382">382</span> |
| <span id="383">383</span> |
| <span id="384">384</span> |
| <span id="385">385</span> |
| <span id="386">386</span> |
| <span id="387">387</span> |
| <span id="388">388</span> |
| <span id="389">389</span> |
| <span id="390">390</span> |
| <span id="391">391</span> |
| <span id="392">392</span> |
| <span id="393">393</span> |
| <span id="394">394</span> |
| <span id="395">395</span> |
| <span id="396">396</span> |
| <span id="397">397</span> |
| <span id="398">398</span> |
| <span id="399">399</span> |
| <span id="400">400</span> |
| <span id="401">401</span> |
| <span id="402">402</span> |
| <span id="403">403</span> |
| <span id="404">404</span> |
| <span id="405">405</span> |
| <span id="406">406</span> |
| <span id="407">407</span> |
| <span id="408">408</span> |
| <span id="409">409</span> |
| <span id="410">410</span> |
| <span id="411">411</span> |
| <span id="412">412</span> |
| <span id="413">413</span> |
| <span id="414">414</span> |
| <span id="415">415</span> |
| <span id="416">416</span> |
| <span id="417">417</span> |
| <span id="418">418</span> |
| <span id="419">419</span> |
| <span id="420">420</span> |
| <span id="421">421</span> |
| <span id="422">422</span> |
| <span id="423">423</span> |
| <span id="424">424</span> |
| <span id="425">425</span> |
| <span id="426">426</span> |
| <span id="427">427</span> |
| <span id="428">428</span> |
| <span id="429">429</span> |
| <span id="430">430</span> |
| <span id="431">431</span> |
| <span id="432">432</span> |
| <span id="433">433</span> |
| <span id="434">434</span> |
| <span id="435">435</span> |
| <span id="436">436</span> |
| <span id="437">437</span> |
| <span id="438">438</span> |
| <span id="439">439</span> |
| <span id="440">440</span> |
| <span id="441">441</span> |
| <span id="442">442</span> |
| <span id="443">443</span> |
| <span id="444">444</span> |
| <span id="445">445</span> |
| <span id="446">446</span> |
| <span id="447">447</span> |
| <span id="448">448</span> |
| <span id="449">449</span> |
| <span id="450">450</span> |
| <span id="451">451</span> |
| <span id="452">452</span> |
| <span id="453">453</span> |
| <span id="454">454</span> |
| <span id="455">455</span> |
| <span id="456">456</span> |
| <span id="457">457</span> |
| <span id="458">458</span> |
| <span id="459">459</span> |
| <span id="460">460</span> |
| <span id="461">461</span> |
| <span id="462">462</span> |
| <span id="463">463</span> |
| <span id="464">464</span> |
| <span id="465">465</span> |
| <span id="466">466</span> |
| <span id="467">467</span> |
| <span id="468">468</span> |
| <span id="469">469</span> |
| <span id="470">470</span> |
| <span id="471">471</span> |
| <span id="472">472</span> |
| <span id="473">473</span> |
| <span id="474">474</span> |
| <span id="475">475</span> |
| <span id="476">476</span> |
| <span id="477">477</span> |
| <span id="478">478</span> |
| <span id="479">479</span> |
| <span id="480">480</span> |
| <span id="481">481</span> |
| <span id="482">482</span> |
| <span id="483">483</span> |
| <span id="484">484</span> |
| <span id="485">485</span> |
| <span id="486">486</span> |
| <span id="487">487</span> |
| <span id="488">488</span> |
| <span id="489">489</span> |
| <span id="490">490</span> |
| <span id="491">491</span> |
| <span id="492">492</span> |
| <span id="493">493</span> |
| <span id="494">494</span> |
| <span id="495">495</span> |
| <span id="496">496</span> |
| <span id="497">497</span> |
| <span id="498">498</span> |
| <span id="499">499</span> |
| <span id="500">500</span> |
| <span id="501">501</span> |
| <span id="502">502</span> |
| </pre><pre class="rust"><code><span class="comment">// See the README in this directory for an explanation of the Teddy algorithm. |
| |
| </span><span class="kw">use </span>core::{cmp, fmt}; |
| |
| <span class="kw">use </span>alloc::{collections::BTreeMap, format, vec, vec::Vec}; |
| |
| <span class="kw">use </span><span class="kw">crate</span>::packed::{ |
| pattern::{PatternID, Patterns}, |
| teddy::Teddy, |
| }; |
| |
| <span class="doccomment">/// A builder for constructing a Teddy matcher. |
| /// |
| /// The builder primarily permits fine grained configuration of the Teddy |
| /// matcher. Most options are made only available for testing/benchmarking |
| /// purposes. In reality, options are automatically determined by the nature |
| /// and number of patterns given to the builder. |
| </span><span class="attribute">#[derive(Clone, Debug)] |
| </span><span class="kw">pub struct </span>Builder { |
| <span class="doccomment">/// When none, this is automatically determined. Otherwise, `false` means |
| /// slim Teddy is used (8 buckets) and `true` means fat Teddy is used |
| /// (16 buckets). Fat Teddy requires AVX2, so if that CPU feature isn't |
| /// available and Fat Teddy was requested, no matcher will be built. |
| </span>fat: <span class="prelude-ty">Option</span><bool>, |
| <span class="doccomment">/// When none, this is automatically determined. Otherwise, `false` means |
| /// that 128-bit vectors will be used (up to SSSE3 instructions) where as |
| /// `true` means that 256-bit vectors will be used. As with `fat`, if |
| /// 256-bit vectors are requested and they aren't available, then a |
| /// searcher will not be built. |
| </span>avx: <span class="prelude-ty">Option</span><bool>, |
| } |
| |
| <span class="kw">impl </span>Default <span class="kw">for </span>Builder { |
| <span class="kw">fn </span>default() -> Builder { |
| Builder::new() |
| } |
| } |
| |
| <span class="kw">impl </span>Builder { |
| <span class="doccomment">/// Create a new builder for configuring a Teddy matcher. |
| </span><span class="kw">pub fn </span>new() -> Builder { |
| Builder { fat: <span class="prelude-val">None</span>, avx: <span class="prelude-val">None </span>} |
| } |
| |
| <span class="doccomment">/// Build a matcher for the set of patterns given. If a matcher could not |
| /// be built, then `None` is returned. |
| /// |
| /// Generally, a matcher isn't built if the necessary CPU features aren't |
| /// available, an unsupported target or if the searcher is believed to be |
| /// slower than standard techniques (i.e., if there are too many literals). |
| </span><span class="kw">pub fn </span>build(<span class="kw-2">&</span><span class="self">self</span>, patterns: <span class="kw-2">&</span>Patterns) -> <span class="prelude-ty">Option</span><Teddy> { |
| <span class="self">self</span>.build_imp(patterns) |
| } |
| |
| <span class="doccomment">/// Require the use of Fat (true) or Slim (false) Teddy. Fat Teddy uses |
| /// 16 buckets where as Slim Teddy uses 8 buckets. More buckets are useful |
| /// for a larger set of literals. |
| /// |
| /// `None` is the default, which results in an automatic selection based |
| /// on the number of literals and available CPU features. |
| </span><span class="kw">pub fn </span>fat(<span class="kw-2">&mut </span><span class="self">self</span>, yes: <span class="prelude-ty">Option</span><bool>) -> <span class="kw-2">&mut </span>Builder { |
| <span class="self">self</span>.fat = yes; |
| <span class="self">self |
| </span>} |
| |
| <span class="doccomment">/// Request the use of 256-bit vectors (true) or 128-bit vectors (false). |
| /// Generally, a larger vector size is better since it either permits |
| /// matching more patterns or matching more bytes in the haystack at once. |
| /// |
| /// `None` is the default, which results in an automatic selection based on |
| /// the number of literals and available CPU features. |
| </span><span class="kw">pub fn </span>avx(<span class="kw-2">&mut </span><span class="self">self</span>, yes: <span class="prelude-ty">Option</span><bool>) -> <span class="kw-2">&mut </span>Builder { |
| <span class="self">self</span>.avx = yes; |
| <span class="self">self |
| </span>} |
| |
| <span class="kw">fn </span>build_imp(<span class="kw-2">&</span><span class="self">self</span>, patterns: <span class="kw-2">&</span>Patterns) -> <span class="prelude-ty">Option</span><Teddy> { |
| <span class="kw">use </span><span class="kw">crate</span>::packed::teddy::runtime; |
| |
| <span class="comment">// Most of the logic here is just about selecting the optimal settings, |
| // or perhaps even rejecting construction altogether. The choices |
| // we have are: fat (avx only) or not, ssse3 or avx2, and how many |
| // patterns we allow ourselves to search. Additionally, for testing |
| // and benchmarking, we permit callers to try to "force" a setting, |
| // and if the setting isn't allowed (e.g., forcing AVX when AVX isn't |
| // available), then we bail and return nothing. |
| |
| </span><span class="kw">if </span>patterns.len() > <span class="number">64 </span>{ |
| <span class="macro">debug!</span>(<span class="string">"skipping Teddy because of too many patterns"</span>); |
| <span class="kw">return </span><span class="prelude-val">None</span>; |
| } |
| <span class="kw">let </span>has_ssse3 = <span class="macro">std::is_x86_feature_detected!</span>(<span class="string">"ssse3"</span>); |
| <span class="kw">let </span>has_avx = <span class="macro">std::is_x86_feature_detected!</span>(<span class="string">"avx2"</span>); |
| <span class="kw">let </span>avx = <span class="kw">if </span><span class="self">self</span>.avx == <span class="prelude-val">Some</span>(<span class="bool-val">true</span>) { |
| <span class="kw">if </span>!has_avx { |
| <span class="macro">debug!</span>( |
| <span class="string">"skipping Teddy because avx was demanded but unavailable" |
| </span>); |
| <span class="kw">return </span><span class="prelude-val">None</span>; |
| } |
| <span class="bool-val">true |
| </span>} <span class="kw">else if </span><span class="self">self</span>.avx == <span class="prelude-val">Some</span>(<span class="bool-val">false</span>) { |
| <span class="kw">if </span>!has_ssse3 { |
| <span class="macro">debug!</span>( |
| <span class="string">"skipping Teddy because ssse3 was demanded but unavailable" |
| </span>); |
| <span class="kw">return </span><span class="prelude-val">None</span>; |
| } |
| <span class="bool-val">false |
| </span>} <span class="kw">else if </span>!has_ssse3 && !has_avx { |
| <span class="macro">debug!</span>(<span class="string">"skipping Teddy because ssse3 and avx are unavailable"</span>); |
| <span class="kw">return </span><span class="prelude-val">None</span>; |
| } <span class="kw">else </span>{ |
| has_avx |
| }; |
| <span class="kw">let </span>fat = <span class="kw">match </span><span class="self">self</span>.fat { |
| <span class="prelude-val">None </span>=> avx && patterns.len() > <span class="number">32</span>, |
| <span class="prelude-val">Some</span>(<span class="bool-val">false</span>) => <span class="bool-val">false</span>, |
| <span class="prelude-val">Some</span>(<span class="bool-val">true</span>) <span class="kw">if </span>!avx => { |
| <span class="macro">debug!</span>( |
| <span class="string">"skipping Teddy because it needs to be fat, but fat \ |
| Teddy requires avx which is unavailable" |
| </span>); |
| <span class="kw">return </span><span class="prelude-val">None</span>; |
| } |
| <span class="prelude-val">Some</span>(<span class="bool-val">true</span>) => <span class="bool-val">true</span>, |
| }; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>compiler = Compiler::new(patterns, fat); |
| compiler.compile(); |
| <span class="kw">let </span>Compiler { buckets, masks, .. } = compiler; |
| <span class="comment">// SAFETY: It is required that the builder only produce Teddy matchers |
| // that are allowed to run on the current CPU, since we later assume |
| // that the presence of (for example) TeddySlim1Mask256 means it is |
| // safe to call functions marked with the `avx2` target feature. |
| </span><span class="kw">match </span>(masks.len(), avx, fat) { |
| (<span class="number">1</span>, <span class="bool-val">false</span>, <span class="kw">_</span>) => { |
| <span class="macro">debug!</span>(<span class="string">"Teddy choice: 128-bit slim, 1 byte"</span>); |
| <span class="prelude-val">Some</span>(Teddy { |
| buckets, |
| max_pattern_id: patterns.max_pattern_id(), |
| exec: runtime::Exec::TeddySlim1Mask128( |
| runtime::TeddySlim1Mask128 { |
| mask1: runtime::Mask128::new(masks[<span class="number">0</span>]), |
| }, |
| ), |
| }) |
| } |
| (<span class="number">1</span>, <span class="bool-val">true</span>, <span class="bool-val">false</span>) => { |
| <span class="macro">debug!</span>(<span class="string">"Teddy choice: 256-bit slim, 1 byte"</span>); |
| <span class="prelude-val">Some</span>(Teddy { |
| buckets, |
| max_pattern_id: patterns.max_pattern_id(), |
| exec: runtime::Exec::TeddySlim1Mask256( |
| runtime::TeddySlim1Mask256 { |
| mask1: runtime::Mask256::new(masks[<span class="number">0</span>]), |
| }, |
| ), |
| }) |
| } |
| (<span class="number">1</span>, <span class="bool-val">true</span>, <span class="bool-val">true</span>) => { |
| <span class="macro">debug!</span>(<span class="string">"Teddy choice: 256-bit fat, 1 byte"</span>); |
| <span class="prelude-val">Some</span>(Teddy { |
| buckets, |
| max_pattern_id: patterns.max_pattern_id(), |
| exec: runtime::Exec::TeddyFat1Mask256( |
| runtime::TeddyFat1Mask256 { |
| mask1: runtime::Mask256::new(masks[<span class="number">0</span>]), |
| }, |
| ), |
| }) |
| } |
| (<span class="number">2</span>, <span class="bool-val">false</span>, <span class="kw">_</span>) => { |
| <span class="macro">debug!</span>(<span class="string">"Teddy choice: 128-bit slim, 2 bytes"</span>); |
| <span class="prelude-val">Some</span>(Teddy { |
| buckets, |
| max_pattern_id: patterns.max_pattern_id(), |
| exec: runtime::Exec::TeddySlim2Mask128( |
| runtime::TeddySlim2Mask128 { |
| mask1: runtime::Mask128::new(masks[<span class="number">0</span>]), |
| mask2: runtime::Mask128::new(masks[<span class="number">1</span>]), |
| }, |
| ), |
| }) |
| } |
| (<span class="number">2</span>, <span class="bool-val">true</span>, <span class="bool-val">false</span>) => { |
| <span class="macro">debug!</span>(<span class="string">"Teddy choice: 256-bit slim, 2 bytes"</span>); |
| <span class="prelude-val">Some</span>(Teddy { |
| buckets, |
| max_pattern_id: patterns.max_pattern_id(), |
| exec: runtime::Exec::TeddySlim2Mask256( |
| runtime::TeddySlim2Mask256 { |
| mask1: runtime::Mask256::new(masks[<span class="number">0</span>]), |
| mask2: runtime::Mask256::new(masks[<span class="number">1</span>]), |
| }, |
| ), |
| }) |
| } |
| (<span class="number">2</span>, <span class="bool-val">true</span>, <span class="bool-val">true</span>) => { |
| <span class="macro">debug!</span>(<span class="string">"Teddy choice: 256-bit fat, 2 bytes"</span>); |
| <span class="prelude-val">Some</span>(Teddy { |
| buckets, |
| max_pattern_id: patterns.max_pattern_id(), |
| exec: runtime::Exec::TeddyFat2Mask256( |
| runtime::TeddyFat2Mask256 { |
| mask1: runtime::Mask256::new(masks[<span class="number">0</span>]), |
| mask2: runtime::Mask256::new(masks[<span class="number">1</span>]), |
| }, |
| ), |
| }) |
| } |
| (<span class="number">3</span>, <span class="bool-val">false</span>, <span class="kw">_</span>) => { |
| <span class="macro">debug!</span>(<span class="string">"Teddy choice: 128-bit slim, 3 bytes"</span>); |
| <span class="prelude-val">Some</span>(Teddy { |
| buckets, |
| max_pattern_id: patterns.max_pattern_id(), |
| exec: runtime::Exec::TeddySlim3Mask128( |
| runtime::TeddySlim3Mask128 { |
| mask1: runtime::Mask128::new(masks[<span class="number">0</span>]), |
| mask2: runtime::Mask128::new(masks[<span class="number">1</span>]), |
| mask3: runtime::Mask128::new(masks[<span class="number">2</span>]), |
| }, |
| ), |
| }) |
| } |
| (<span class="number">3</span>, <span class="bool-val">true</span>, <span class="bool-val">false</span>) => { |
| <span class="macro">debug!</span>(<span class="string">"Teddy choice: 256-bit slim, 3 bytes"</span>); |
| <span class="prelude-val">Some</span>(Teddy { |
| buckets, |
| max_pattern_id: patterns.max_pattern_id(), |
| exec: runtime::Exec::TeddySlim3Mask256( |
| runtime::TeddySlim3Mask256 { |
| mask1: runtime::Mask256::new(masks[<span class="number">0</span>]), |
| mask2: runtime::Mask256::new(masks[<span class="number">1</span>]), |
| mask3: runtime::Mask256::new(masks[<span class="number">2</span>]), |
| }, |
| ), |
| }) |
| } |
| (<span class="number">3</span>, <span class="bool-val">true</span>, <span class="bool-val">true</span>) => { |
| <span class="macro">debug!</span>(<span class="string">"Teddy choice: 256-bit fat, 3 bytes"</span>); |
| <span class="prelude-val">Some</span>(Teddy { |
| buckets, |
| max_pattern_id: patterns.max_pattern_id(), |
| exec: runtime::Exec::TeddyFat3Mask256( |
| runtime::TeddyFat3Mask256 { |
| mask1: runtime::Mask256::new(masks[<span class="number">0</span>]), |
| mask2: runtime::Mask256::new(masks[<span class="number">1</span>]), |
| mask3: runtime::Mask256::new(masks[<span class="number">2</span>]), |
| }, |
| ), |
| }) |
| } |
| (<span class="number">4</span>, <span class="bool-val">false</span>, <span class="kw">_</span>) => { |
| <span class="macro">debug!</span>(<span class="string">"Teddy choice: 128-bit slim, 4 bytes"</span>); |
| <span class="prelude-val">Some</span>(Teddy { |
| buckets, |
| max_pattern_id: patterns.max_pattern_id(), |
| exec: runtime::Exec::TeddySlim4Mask128( |
| runtime::TeddySlim4Mask128 { |
| mask1: runtime::Mask128::new(masks[<span class="number">0</span>]), |
| mask2: runtime::Mask128::new(masks[<span class="number">1</span>]), |
| mask3: runtime::Mask128::new(masks[<span class="number">2</span>]), |
| mask4: runtime::Mask128::new(masks[<span class="number">3</span>]), |
| }, |
| ), |
| }) |
| } |
| (<span class="number">4</span>, <span class="bool-val">true</span>, <span class="bool-val">false</span>) => { |
| <span class="macro">debug!</span>(<span class="string">"Teddy choice: 256-bit slim, 4 bytes"</span>); |
| <span class="prelude-val">Some</span>(Teddy { |
| buckets, |
| max_pattern_id: patterns.max_pattern_id(), |
| exec: runtime::Exec::TeddySlim4Mask256( |
| runtime::TeddySlim4Mask256 { |
| mask1: runtime::Mask256::new(masks[<span class="number">0</span>]), |
| mask2: runtime::Mask256::new(masks[<span class="number">1</span>]), |
| mask3: runtime::Mask256::new(masks[<span class="number">2</span>]), |
| mask4: runtime::Mask256::new(masks[<span class="number">3</span>]), |
| }, |
| ), |
| }) |
| } |
| (<span class="number">4</span>, <span class="bool-val">true</span>, <span class="bool-val">true</span>) => { |
| <span class="macro">debug!</span>(<span class="string">"Teddy choice: 256-bit fat, 4 bytes"</span>); |
| <span class="prelude-val">Some</span>(Teddy { |
| buckets, |
| max_pattern_id: patterns.max_pattern_id(), |
| exec: runtime::Exec::TeddyFat4Mask256( |
| runtime::TeddyFat4Mask256 { |
| mask1: runtime::Mask256::new(masks[<span class="number">0</span>]), |
| mask2: runtime::Mask256::new(masks[<span class="number">1</span>]), |
| mask3: runtime::Mask256::new(masks[<span class="number">2</span>]), |
| mask4: runtime::Mask256::new(masks[<span class="number">3</span>]), |
| }, |
| ), |
| }) |
| } |
| <span class="kw">_ </span>=> <span class="macro">unreachable!</span>(), |
| } |
| } |
| } |
| |
| <span class="doccomment">/// A compiler is in charge of allocating patterns into buckets and generating |
| /// the masks necessary for searching. |
| </span><span class="attribute">#[derive(Clone)] |
| </span><span class="kw">struct </span>Compiler<<span class="lifetime">'p</span>> { |
| patterns: <span class="kw-2">&</span><span class="lifetime">'p </span>Patterns, |
| buckets: Vec<Vec<PatternID>>, |
| masks: Vec<Mask>, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'p</span>> Compiler<<span class="lifetime">'p</span>> { |
| <span class="doccomment">/// Create a new Teddy compiler for the given patterns. If `fat` is true, |
| /// then 16 buckets will be used instead of 8. |
| /// |
| /// This panics if any of the patterns given are empty. |
| </span><span class="kw">fn </span>new(patterns: <span class="kw-2">&</span><span class="lifetime">'p </span>Patterns, fat: bool) -> Compiler<<span class="lifetime">'p</span>> { |
| <span class="kw">let </span>mask_len = cmp::min(<span class="number">4</span>, patterns.minimum_len()); |
| <span class="macro">assert!</span>(<span class="number">1 </span><= mask_len && mask_len <= <span class="number">4</span>); |
| |
| Compiler { |
| patterns, |
| buckets: <span class="macro">vec!</span>[<span class="macro">vec!</span>[]; <span class="kw">if </span>fat { <span class="number">16 </span>} <span class="kw">else </span>{ <span class="number">8 </span>}], |
| masks: <span class="macro">vec!</span>[Mask::default(); mask_len], |
| } |
| } |
| |
| <span class="doccomment">/// Compile the patterns in this compiler into buckets and masks. |
| </span><span class="kw">fn </span>compile(<span class="kw-2">&mut </span><span class="self">self</span>) { |
| <span class="kw">let </span><span class="kw-2">mut </span>lonibble_to_bucket: BTreeMap<Vec<u8>, usize> = BTreeMap::new(); |
| <span class="kw">for </span>(id, pattern) <span class="kw">in </span><span class="self">self</span>.patterns.iter() { |
| <span class="comment">// We try to be slightly clever in how we assign patterns into |
| // buckets. Generally speaking, we want patterns with the same |
| // prefix to be in the same bucket, since it minimizes the amount |
| // of time we spend churning through buckets in the verification |
| // step. |
| // |
| // So we could assign patterns with the same N-prefix (where N |
| // is the size of the mask, which is one of {1, 2, 3}) to the |
| // same bucket. However, case insensitive searches are fairly |
| // common, so we'd for example, ideally want to treat `abc` and |
| // `ABC` as if they shared the same prefix. ASCII has the nice |
| // property that the lower 4 bits of A and a are the same, so we |
| // therefore group patterns with the same low-nybbe-N-prefix into |
| // the same bucket. |
| // |
| // MOREOVER, this is actually necessary for correctness! In |
| // particular, by grouping patterns with the same prefix into the |
| // same bucket, we ensure that we preserve correct leftmost-first |
| // and leftmost-longest match semantics. In addition to the fact |
| // that `patterns.iter()` iterates in the correct order, this |
| // guarantees that all possible ambiguous matches will occur in |
| // the same bucket. The verification routine could be adjusted to |
| // support correct leftmost match semantics regardless of bucket |
| // allocation, but that results in a performance hit. It's much |
| // nicer to be able to just stop as soon as a match is found. |
| </span><span class="kw">let </span>lonybs = pattern.low_nybbles(<span class="self">self</span>.masks.len()); |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(<span class="kw-2">&</span>bucket) = lonibble_to_bucket.get(<span class="kw-2">&</span>lonybs) { |
| <span class="self">self</span>.buckets[bucket].push(id); |
| } <span class="kw">else </span>{ |
| <span class="comment">// N.B. We assign buckets in reverse because it shouldn't have |
| // any influence on performance, but it does make it harder to |
| // get leftmost match semantics accidentally correct. |
| </span><span class="kw">let </span>bucket = (<span class="self">self</span>.buckets.len() - <span class="number">1</span>) |
| - (id <span class="kw">as </span>usize % <span class="self">self</span>.buckets.len()); |
| <span class="self">self</span>.buckets[bucket].push(id); |
| lonibble_to_bucket.insert(lonybs, bucket); |
| } |
| } |
| <span class="kw">for </span>(bucket_index, bucket) <span class="kw">in </span><span class="self">self</span>.buckets.iter().enumerate() { |
| <span class="kw">for </span><span class="kw-2">&</span>pat_id <span class="kw">in </span>bucket { |
| <span class="kw">let </span>pat = <span class="self">self</span>.patterns.get(pat_id); |
| <span class="kw">for </span>(i, mask) <span class="kw">in </span><span class="self">self</span>.masks.iter_mut().enumerate() { |
| <span class="kw">if </span><span class="self">self</span>.buckets.len() == <span class="number">8 </span>{ |
| mask.add_slim(bucket_index <span class="kw">as </span>u8, pat.bytes()[i]); |
| } <span class="kw">else </span>{ |
| mask.add_fat(bucket_index <span class="kw">as </span>u8, pat.bytes()[i]); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'p</span>> fmt::Debug <span class="kw">for </span>Compiler<<span class="lifetime">'p</span>> { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| <span class="kw">let </span><span class="kw-2">mut </span>buckets = <span class="macro">vec!</span>[<span class="macro">vec!</span>[]; <span class="self">self</span>.buckets.len()]; |
| <span class="kw">for </span>(i, bucket) <span class="kw">in </span><span class="self">self</span>.buckets.iter().enumerate() { |
| <span class="kw">for </span><span class="kw-2">&</span>patid <span class="kw">in </span>bucket { |
| buckets[i].push(<span class="self">self</span>.patterns.get(patid)); |
| } |
| } |
| f.debug_struct(<span class="string">"Compiler"</span>) |
| .field(<span class="string">"buckets"</span>, <span class="kw-2">&</span>buckets) |
| .field(<span class="string">"masks"</span>, <span class="kw-2">&</span><span class="self">self</span>.masks) |
| .finish() |
| } |
| } |
| |
| <span class="doccomment">/// Mask represents the low and high nybble masks that will be used during |
| /// search. Each mask is 32 bytes wide, although only the first 16 bytes are |
| /// used for the SSSE3 runtime. |
| /// |
| /// Each byte in the mask corresponds to a 8-bit bitset, where bit `i` is set |
| /// if and only if the corresponding nybble is in the ith bucket. The index of |
| /// the byte (0-15, inclusive) corresponds to the nybble. |
| /// |
| /// Each mask is used as the target of a shuffle, where the indices for the |
| /// shuffle are taken from the haystack. AND'ing the shuffles for both the |
| /// low and high masks together also results in 8-bit bitsets, but where bit |
| /// `i` is set if and only if the correspond *byte* is in the ith bucket. |
| /// |
| /// During compilation, masks are just arrays. But during search, these masks |
| /// are represented as 128-bit or 256-bit vectors. |
| /// |
| /// (See the README is this directory for more details.) |
| </span><span class="attribute">#[derive(Clone, Copy, Default)] |
| </span><span class="kw">pub struct </span>Mask { |
| lo: [u8; <span class="number">32</span>], |
| hi: [u8; <span class="number">32</span>], |
| } |
| |
| <span class="kw">impl </span>Mask { |
| <span class="doccomment">/// Update this mask by adding the given byte to the given bucket. The |
| /// given bucket must be in the range 0-7. |
| /// |
| /// This is for "slim" Teddy, where there are only 8 buckets. |
| </span><span class="kw">fn </span>add_slim(<span class="kw-2">&mut </span><span class="self">self</span>, bucket: u8, byte: u8) { |
| <span class="macro">assert!</span>(bucket < <span class="number">8</span>); |
| |
| <span class="kw">let </span>byte_lo = (byte & <span class="number">0xF</span>) <span class="kw">as </span>usize; |
| <span class="kw">let </span>byte_hi = ((byte >> <span class="number">4</span>) & <span class="number">0xF</span>) <span class="kw">as </span>usize; |
| <span class="comment">// When using 256-bit vectors, we need to set this bucket assignment in |
| // the low and high 128-bit portions of the mask. This allows us to |
| // process 32 bytes at a time. Namely, AVX2 shuffles operate on each |
| // of the 128-bit lanes, rather than the full 256-bit vector at once. |
| </span><span class="self">self</span>.lo[byte_lo] |= <span class="number">1 </span><< bucket; |
| <span class="self">self</span>.lo[byte_lo + <span class="number">16</span>] |= <span class="number">1 </span><< bucket; |
| <span class="self">self</span>.hi[byte_hi] |= <span class="number">1 </span><< bucket; |
| <span class="self">self</span>.hi[byte_hi + <span class="number">16</span>] |= <span class="number">1 </span><< bucket; |
| } |
| |
| <span class="doccomment">/// Update this mask by adding the given byte to the given bucket. The |
| /// given bucket must be in the range 0-15. |
| /// |
| /// This is for "fat" Teddy, where there are 16 buckets. |
| </span><span class="kw">fn </span>add_fat(<span class="kw-2">&mut </span><span class="self">self</span>, bucket: u8, byte: u8) { |
| <span class="macro">assert!</span>(bucket < <span class="number">16</span>); |
| |
| <span class="kw">let </span>byte_lo = (byte & <span class="number">0xF</span>) <span class="kw">as </span>usize; |
| <span class="kw">let </span>byte_hi = ((byte >> <span class="number">4</span>) & <span class="number">0xF</span>) <span class="kw">as </span>usize; |
| <span class="comment">// Unlike slim teddy, fat teddy only works with AVX2. For fat teddy, |
| // the high 128 bits of our mask correspond to buckets 8-15, while the |
| // low 128 bits correspond to buckets 0-7. |
| </span><span class="kw">if </span>bucket < <span class="number">8 </span>{ |
| <span class="self">self</span>.lo[byte_lo] |= <span class="number">1 </span><< bucket; |
| <span class="self">self</span>.hi[byte_hi] |= <span class="number">1 </span><< bucket; |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.lo[byte_lo + <span class="number">16</span>] |= <span class="number">1 </span><< (bucket % <span class="number">8</span>); |
| <span class="self">self</span>.hi[byte_hi + <span class="number">16</span>] |= <span class="number">1 </span><< (bucket % <span class="number">8</span>); |
| } |
| } |
| |
| <span class="doccomment">/// Return the low 128 bits of the low-nybble mask. |
| </span><span class="kw">pub fn </span>lo128(<span class="kw-2">&</span><span class="self">self</span>) -> [u8; <span class="number">16</span>] { |
| <span class="kw">let </span><span class="kw-2">mut </span>tmp = [<span class="number">0</span>; <span class="number">16</span>]; |
| tmp.copy_from_slice(<span class="kw-2">&</span><span class="self">self</span>.lo[..<span class="number">16</span>]); |
| tmp |
| } |
| |
| <span class="doccomment">/// Return the full low-nybble mask. |
| </span><span class="kw">pub fn </span>lo256(<span class="kw-2">&</span><span class="self">self</span>) -> [u8; <span class="number">32</span>] { |
| <span class="self">self</span>.lo |
| } |
| |
| <span class="doccomment">/// Return the low 128 bits of the high-nybble mask. |
| </span><span class="kw">pub fn </span>hi128(<span class="kw-2">&</span><span class="self">self</span>) -> [u8; <span class="number">16</span>] { |
| <span class="kw">let </span><span class="kw-2">mut </span>tmp = [<span class="number">0</span>; <span class="number">16</span>]; |
| tmp.copy_from_slice(<span class="kw-2">&</span><span class="self">self</span>.hi[..<span class="number">16</span>]); |
| tmp |
| } |
| |
| <span class="doccomment">/// Return the full high-nybble mask. |
| </span><span class="kw">pub fn </span>hi256(<span class="kw-2">&</span><span class="self">self</span>) -> [u8; <span class="number">32</span>] { |
| <span class="self">self</span>.hi |
| } |
| } |
| |
| <span class="kw">impl </span>fmt::Debug <span class="kw">for </span>Mask { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| <span class="kw">let </span>(<span class="kw-2">mut </span>parts_lo, <span class="kw-2">mut </span>parts_hi) = (<span class="macro">vec!</span>[], <span class="macro">vec!</span>[]); |
| <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..<span class="number">32 </span>{ |
| parts_lo.push(<span class="macro">format!</span>(<span class="string">"{:02}: {:08b}"</span>, i, <span class="self">self</span>.lo[i])); |
| parts_hi.push(<span class="macro">format!</span>(<span class="string">"{:02}: {:08b}"</span>, i, <span class="self">self</span>.hi[i])); |
| } |
| f.debug_struct(<span class="string">"Mask"</span>) |
| .field(<span class="string">"lo"</span>, <span class="kw-2">&</span>parts_lo) |
| .field(<span class="string">"hi"</span>, <span class="kw-2">&</span>parts_hi) |
| .finish() |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../../" data-current-crate="aho_corasick" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |