Traversing Html In Rust - Kagi Assistant

[{"id":"23c79186-d298-4b00-bcd4-b739ed1318f5","thread_id":"edcdbbc2-04cf-4cbe-8fa3-232b56db5ce3","created_at":"2025-11-27T19:14:31Z","state":"done","prompt":"How to traverse HTML in Rust?","references_html":"<ol data-ref-list>\n \n <li>\n <a href=\"https://medium.com/@datajournal/5-best-rust-html-parsers-for-web-scraping-c11cb68a503f\" >5 Best Rust HTML Parsers for Web Scraping</a>\n medium.com\n <div class=\"trigger\" tabindex=\"0\">\n 100%\n <div class=\"tooltip top end tooltip_base tw-auto\">\n This percentage indicates how much a source has contributed to the answer.\n </div>\n </div>\n </li>\n \n</ol>\n","references_md":"[^1]: [5 Best Rust HTML Parsers for Web Scraping](https://medium.com/@datajournal/5-best-rust-html-parsers-for-web-scraping-c11cb68a503f) (100%)\n","reply":"<details><summary>Searched with Kagi\n<ul>\n<li>Rust HTML traversal</li></ul></summary> \nSources (10): \n5 Best Rust HTML Parsers for Web Scraping \n<a href=\"https://medium.com/@datajournal/5-best-rust-html-parsers-for-web-scraping-c11cb68a503f\" target=\"_blank\">https://medium.com/@datajournal/5-best-rust-html-parsers-for-web-scraping-c11cb68a503f</a> \nMay 27, 2025 Allows traversal and modification. Pros: Very easy to understand; Full tree structure; Good selector support; Great for traversing complex HTML.See more\n\nParsing HTML in Rust. I’m building a browser at the Recurse… | by ... \n<a href=\"https://medium.com/@arpith/parsing-html-in-rust-5f2fe0efcd5a\" target=\"_blank\">https://medium.com/@arpith/parsing-html-in-rust-5f2fe0efcd5a</a> \n I’m building a browser at the Recurse Center, and as a first step, I need to parse HTML! Here’s how you do it in Rust: To do this, we need to traverse the dom tree and looking for nodes that...\nHow do I use this directory traversal code from Rust ... \n<a href=\"https://stackoverflow.com/questions/77720922/how-do-i-use-this-directory-traversal-code-from-rust-examples\" target=\"_blank\">https://stackoverflow.com/questions/77720922/how-do-i-use-this-directory-traversal-code-from-rust-examples</a> \nNov 27, 2024 You can simply create a closure let foo = |x: &DirEntry| println!(\"{:?}\", x); and pass it as callback visit_dirs(path, &foo);See more\nrust - Parsing HTML page content in a stream with hyper and html5ever ... \n<a href=\"https://stackoverflow.com/questions/35654525/parsing-html-page-content-in-a-stream-with-hyper-and-html5ever\" target=\"_blank\">https://stackoverflow.com/questions/35654525/parsing-html-page-content-in-a-stream-with-hyper-and-html5ever</a> \n In order to be compatible with legacy web content, a conforming HTML parser needs to do all kinds of complex tree manipulation like the \"adoption agency algorithm\". The only way to do that and have an event-based API is to buffer the entire document, which defeats the point.\nrust - Replace elements while traversing DOM tree using html5ever \n<a href=\"https://stackoverflow.com/questions/79101648/replace-elements-while-traversing-dom-tree-using-html5ever\" target=\"_blank\">https://stackoverflow.com/questions/79101648/replace-elements-while-traversing-dom-tree-using-html5ever</a> \nOct 18, 2024 I am trying to achieve this through html5ever and markup5ever_rcdom, I think I need a recursive function to traverse the node tree, but I am not able to come up with a valid one, the signature of the function to create new element is RcDom::create_element(&mut self), so my recursive.Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them up with references or personal experience.\nhtml_parser - Rust - Docs.rs \n<a href=\"https://docs.rs/html_parser/latest/html_parser/\" target=\"_blank\">https://docs.rs/html_parser/latest/html_parser/</a> \n Html parser A simple and general purpose html/xhtml parser lib/bin, using Pest. Features Parse html & xhtml (not xml processing instructions) Parse html-documents Parse html-fragments Parse empty documents Parse with the same api for both documents and fragments Parse custom, non-standard, elements; <cat/>, <Cat/> and <C4-t/> Removes comments\nHtml in scraper::html - Rust \n<a href=\"https://docs.rs/scraper/latest/scraper/html/struct.Html.html\" target=\"_blank\">https://docs.rs/scraper/latest/scraper/html/struct.Html.html</a> \n An HTML tree. Parsing does not fail hard. Instead, the quirks_mode is set and errors are added to the errors field. The tree will still be populated as best ...See more\ndata structures - Tree traversal in Rust vs Borrow... - Stack Overflow \n<a href=\"https://stackoverflow.com/questions/27716654/tree-traversal-in-rust-vs-borrow-checker\" target=\"_blank\">https://stackoverflow.com/questions/27716654/tree-traversal-in-rust-vs-borrow-checker</a> \nJun 22, 2017 I'm attempting to implement a tree structure in Rust, traverse it, and modify it, and I'm running into trouble with the borrow checker.Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them up with references or personal experience. To learn more, see our tips on writing great answers.\nhtml - Rust - Docs.rs \n<a href=\"https://docs.rs/html/latest/html/\" target=\"_blank\">https://docs.rs/html/latest/html/</a> \n HTML is easy to get started with, but hard to get right. There are several hundred element kinds, element attributes, and deeply nested hierachies - with some relationships even being conditional on each other.\nrust - What's the ideal way to trim extra spaces from... - Stack Overflow \n<a href=\"https://stackoverflow.com/questions/71864137/whats-the-ideal-way-to-trim-extra-spaces-from-a-string\" target=\"_blank\">https://stackoverflow.com/questions/71864137/whats-the-ideal-way-to-trim-extra-spaces-from-a-string</a> \nApr 14, 2022 In your while loop the string is traversed multiple times, rather than once. You are already making a copy in new_str and \"replace\" itself has a traversal so you have two loops internally why not do it as a vector?Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them up with references or personal experience.\n</details>To traverse HTML in Rust, use libraries like <code>scraper</code> or <code>html5ever</code>. The <code>scraper</code> crate is user-friendly and supports CSS selectors for navigating and extracting data from HTML. First, parse the HTML into a DOM tree, then traverse it using depth-first search or selector queries. For example, with <code>scraper</code>, parse HTML using <code>Html::parse_document()</code>, and traverse elements via <code>select()</code> with a CSS selector. For more control, <code>html5ever</code> provides a full DOM tree that can be traversed recursively by accessing child nodes. Use <code>RcDom</code> from <code>markup5ever_rcdom</code> to manipulate and walk the tree, handling each node type (element, text, comment) as needed <a href=\"https://medium.com/@datajournal/5-best-rust-html-parsers-for-web-scraping-c11cb68a503f#:~:text=Allows%20traversal,HTML.See%20more\">1</a><a href=\"https://medium.com/@datajournal/5-best-rust-html-parsers-for-web-scraping-c11cb68a503f#:~:text=Allows%20traversal,HTML.See%20more\"><img alt=\"\" src=\"/proxy/favicons?c=lQ30-cxV_E2Vdyqb6hrbuYgId7qu7hecjO7o1T7aqQDFc7XpcLttL1Ryala-GNHJBGQH74Q81gRS6YwzivL6uub9-AAfvy0RHe-vtiCjq5U%3D\"> medium.com1. 5 Best Rust HTML Parsers for Web Scraping</a>Allows traversal and modification. Pros: Very easy to understand; Full tree structure; Good selector support; Great for traversing complex HTML.See more.","md":"To traverse HTML in Rust, use libraries like `scraper` or `html5ever`. The `scraper` crate is user-friendly and supports CSS selectors for navigating and extracting data from HTML. First, parse the HTML into a DOM tree, then traverse it using depth-first search or selector queries. For example, with `scraper`, parse HTML using `Html::parse_document()`, and traverse elements via `select()` with a CSS selector. For more control, `html5ever` provides a full DOM tree that can be traversed recursively by accessing child nodes. Use `RcDom` from `markup5ever_rcdom` to manipulate and walk the tree, handling each node type (element, text, comment) as needed [^1].","profile":{"id":"095899c5-634b-4eeb-ad03-41fd508fbb51","name":"Code","subtitle":"Fast, straight answer (<5 secs)","model":"ki_quick","model_name":"Quick","model_provider":"kagi","model_input_limit":1000000,"recommended":true,"model_info":"\n\n<div class=\"heading\">\n <div class=\"left\">\n \n \n \n <svg class=\"model-icon icon-xs\" data-model=\"ki_quick\">\n <use href=\"#icon-kagi-1\"/>\n </svg>\n <h3>\n \n Code\n </h3>\n </div>\n\n \n</div>\n\n\n<hr />\n<ul>\n \n <li>\n <h4>\n Model\n </h4>\n \n <svg class=\"icon-xs icon\">\n <use href=\"#icon-kagi\" />\n </svg>\n Quick\n \n </li>\n <li>\n <h4>\n Web access\n </h4>\n On\n </li>\n <li>\n <h4>\n Lenses\n </h4>\n --\n </li>\n \n</ul>\n","model_provider_name":"Kagi","internet_access":true,"personalizations":false,"shortcut":null,"is_default_profile":true},"metadata":"<li>\n Model\n <svg><use href=\"#icon-kagi\"></use></svg>Quick\n</li>\n<li>\n Version\n ki_quick-2025-11-18\n</li>\n<li>\n Speed (tok/s)\n 80\n</li>\n<li>\n Tokens\n 3,557\n</li>\n<li>\n Cost / Total ($)\n 0.006 / 0.006\n</li>\n<li>\n End to end time (s)\n 3.03\n</li>\n\n","documents":[]},{"id":"13b0b6b1-8d9f-45e7-a1ba-10d150227412","thread_id":"edcdbbc2-04cf-4cbe-8fa3-232b56db5ce3","created_at":"2025-11-27T19:16:12Z","state":"done","prompt":"How do I traverse attributes that consist of multiple values. For example, if I have HTML that says ``, how do I select elements that have class \"bar\"?","reply":"<details><summary>Searched with Kagi\n<ul>\n<li>Rust scraper crate select elements by class attribute multiple values</li></ul></summary> \nSources (10): \nRetrieve sibling elements using the scraper crate \n<a href=\"https://stackoverflow.com/questions/66711259/retrieve-sibling-elements-using-the-scraper-crate\" target=\"_blank\">https://stackoverflow.com/questions/66711259/retrieve-sibling-elements-using-the-scraper-crate</a> \nNov 27, 2021 I am trying to build a simple web scraper. My aim is to scrape https://news.ycombinator.com/ and get the title, hyperlink, votes and username.\n\nWeb scraping using select and sorting data with serde crate in rust \n<a href=\"https://stackoverflow.com/questions/67322469/web-scraping-using-select-and-sorting-data-with-serde-crate-in-rust\" target=\"_blank\">https://stackoverflow.com/questions/67322469/web-scraping-using-select-and-sorting-data-with-serde-crate-in-rust</a> \nApr 29, 2021 @ChamLake this is not really a rust specific question, I believe. What you do now, is you find a collection of href elements, you add all of them to a single Question struct and push it to a vector.Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them up with references or personal experience.\nscraper - Rust - Docs.rs \n<a href=\"https://docs.rs/scraper/latest/scraper/\" target=\"_blank\">https://docs.rs/scraper/latest/scraper/</a> \nDec 24, 2016 Scraper provides an interface to Servo’s fast_html5ever and selectors crates, for browser-grade parsing and querying. This project tweaks the main repo to fit the needs directly of the crate.\nCorrect selector to get span element in a table in Rust with scraper \n<a href=\"https://stackoverflow.com/questions/75787470/correct-selector-to-get-span-element-in-a-table-in-rust-with-scraper\" target=\"_blank\">https://stackoverflow.com/questions/75787470/correct-selector-to-get-span-element-in-a-table-in-rust-with-scraper</a> \nMar 20, 2023 I want to extract the value 0.45 in the span element. But I am not able to grep the span element. Is it possible to give me the right selector?This has nothing to do with rust, your selector is just plain incorrect: nth-child is a pseudo-class which filters elements based on their position amongst their sibling, so it has to be applied to the child, it's not a combinator. Here your selector is trying to select the tr of id 12345678 which is simulatnously the 1st and 3rd child (of its parent).\nSelector \n<a href=\"https://docs.rs/scraper/latest/scraper/selector/struct.Selector.html\" target=\"_blank\">https://docs.rs/scraper/latest/scraper/selector/struct.Selector.html</a> \n Returns true if the element matches this selector. The optional scope argument is used to specify which element has :scope pseudo-class. When it is None, :scope will match the root element.\nElementRef in scraper::element_ref - Rust \n<a href=\"https://docs.rs/scraper/latest/scraper/element_ref/struct.ElementRef.html\" target=\"_blank\">https://docs.rs/scraper/latest/scraper/element_ref/struct.ElementRef.html</a> \nOct 13, 2016 scraper 0.24.0. Permalink.Wrapper around a reference to an element node. This wrapper implements the Element trait from the selectors crate, which allows it to be matched against CSS selectors.\nscraper - Rust \n<a href=\"https://docs.rs/spider_scraper\" target=\"_blank\">https://docs.rs/spider_scraper</a> \nDec 20, 2021 Scraper provides an interface to Servo's fast_html5ever and selectors crates, for browser-grade parsing and querying.\nHtml \n<a href=\"https://docs.rs/scraper/latest/scraper/html/struct.Html.html\" target=\"_blank\">https://docs.rs/scraper/latest/scraper/html/struct.Html.html</a> \n Source pub fn select <'a, 'b> (&'a self, selector: &'b Selector) -> Select <'a, 'b> ⓘ Returns an iterator over elements matching a selector.\nNode \n<a href=\"https://docs.rs/scraper/latest/scraper/node/enum.Node.html\" target=\"_blank\">https://docs.rs/scraper/latest/scraper/node/enum.Node.html</a> \n pub fn is_document (&self) -> bool Returns true if node is the document root.\nError \n<a href=\"https://docs.rs/scraper/latest/scraper/error/index.html\" target=\"_blank\">https://docs.rs/scraper/latest/scraper/error/index.html</a> \n Custom error types for diagnostics Includes re-exported error types from dependencies\n</details>Use the <code>scraper</code> crate with CSS selectors: select elements by <code>class=\"bar\"</code> directly using the <code>.bar</code> selector, which automatically matches any element whose class attribute contains <code>bar</code> as a whitespace-separated token, regardless of other classes like <code>foo</code>. The selector <code>.bar</code> will match <code></code> because CSS selector semantics in <code>scraper</code> handle multi-valued attributes correctly by token matching 15.","md":"Use the `scraper` crate with CSS selectors: select elements by `class=\"bar\"` directly using the `.bar` selector, which automatically matches any element whose class attribute contains `bar` as a whitespace-separated token, regardless of other classes like `foo`. The selector `.bar` will match `` because CSS selector semantics in `scraper` handle multi-valued attributes correctly by token matching 15.","profile":{"id":"095899c5-634b-4eeb-ad03-41fd508fbb51","name":"Code","subtitle":"Fast, straight answer (<5 secs)","model":"ki_quick","model_name":"Quick","model_provider":"kagi","model_input_limit":1000000,"recommended":true,"model_info":"\n\n<div class=\"heading\">\n <div class=\"left\">\n \n \n \n <svg class=\"model-icon icon-xs\" data-model=\"ki_quick\">\n <use href=\"#icon-kagi-1\"/>\n </svg>\n <h3>\n \n Code\n </h3>\n </div>\n\n \n</div>\n\n\n<hr />\n<ul>\n \n <li>\n <h4>\n Model\n </h4>\n \n <svg class=\"icon-xs icon\">\n <use href=\"#icon-kagi\" />\n </svg>\n Quick\n \n </li>\n <li>\n <h4>\n Web access\n </h4>\n On\n </li>\n <li>\n <h4>\n Lenses\n </h4>\n --\n </li>\n \n</ul>\n","model_provider_name":"Kagi","internet_access":true,"personalizations":false,"shortcut":null,"is_default_profile":true},"metadata":"<li>\n Model\n <svg><use href=\"#icon-kagi\"></use></svg>Quick\n</li>\n<li>\n Version\n ki_quick-2025-11-18\n</li>\n<li>\n Speed (tok/s)\n 65\n</li>\n<li>\n Tokens\n 3,601\n</li>\n<li>\n Cost / Total ($)\n 0.006 / 0.01\n</li>\n<li>\n End to end time (s)\n 2.69\n</li>\n\n","documents":[]},{"id":"31817f9c-c91a-49be-96c4-a677b05b370b","thread_id":"edcdbbc2-04cf-4cbe-8fa3-232b56db5ce3","created_at":"2025-11-27T19:16:40Z","state":"done","prompt":"Give me code snippet","references_html":"<ol data-ref-list>\n \n <li>\n <a href=\"https://docs.rs/scraper/latest/scraper/selector/struct.Selector.html\" >Selector</a>\n docs.rs\n <div class=\"trigger\" tabindex=\"0\">\n 100%\n <div class=\"tooltip top end tooltip_base tw-auto\">\n This percentage indicates how much a source has contributed to the answer.\n </div>\n </div>\n </li>\n \n</ol>\n","references_md":"[^1]: [Selector](https://docs.rs/scraper/latest/scraper/selector/struct.Selector.html) (100%)\n","reply":"<details><summary>Searched with Kagi\n<ul>\n<li>Rust scraper crate select elements by class attribute multiple values code example</li></ul></summary> \nSources (10): \nHow do I get the inner text of elements using the scraper ... \n<a href=\"https://stackoverflow.com/questions/63248777/how-do-i-get-the-inner-text-of-elements-using-the-scraper-crate\" target=\"_blank\">https://stackoverflow.com/questions/63248777/how-do-i-get-the-inner-text-of-elements-using-the-scraper-crate</a> \nNov 27, 2020 Use `ElementRef::text` to get text. Alternatively, use a selector like `parsed_html .select(&Selector::parse(\"body div#foo:nth-child(1):nth- ...\n\nRetrieve sibling elements using the scraper crate \n<a href=\"https://stackoverflow.com/questions/66711259/retrieve-sibling-elements-using-the-scraper-crate\" target=\"_blank\">https://stackoverflow.com/questions/66711259/retrieve-sibling-elements-using-the-scraper-crate</a> \nMar 19, 2021 Since the title and link of a news item on news.ycombinator.com is in a element with the .athing class, and the votes and user are in the next element, which doesn't have a class (making it harder to select), it might be best to select \"table.itemlist tr.athing\" and iterate over those results.\nscraper - Rust - Docs.rs \n<a href=\"https://docs.rs/scraper/latest/scraper/\" target=\"_blank\">https://docs.rs/scraper/latest/scraper/</a> \nDec 24, 2016 Scraper provides an interface to Servo’s fast_html5ever and selectors crates, for browser-grade parsing and querying. This project tweaks the main repo to fit the needs directly of the crate.\nWeb scraping using select and sorting data with serde crate in rust \n<a href=\"https://stackoverflow.com/questions/67322469/web-scraping-using-select-and-sorting-data-with-serde-crate-in-rust\" target=\"_blank\">https://stackoverflow.com/questions/67322469/web-scraping-using-select-and-sorting-data-with-serde-crate-in-rust</a> \nApr 29, 2021 @ChamLake this is not really a rust specific question, I believe. What you do now, is you find a collection of href elements, you add all of them to a single Question struct and push it to a vector.Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them up with references or personal experience.\nSelector \n<a href=\"https://docs.rs/scraper/latest/scraper/selector/struct.Selector.html\" target=\"_blank\">https://docs.rs/scraper/latest/scraper/selector/struct.Selector.html</a> \n Wrapper around CSS selectors. Represents a “selector group”, i.e. a comma-separated list of selectors. Parses a CSS selector group. Examples found in repository? 8 let mut input = String::new(); 9 let mut stdout = io::stdout(); 10 let mut stdin = io::stdin(); 11 12 write! (stdout, \"CSS selector: \").unwrap(); 13 stdout.flush().unwrap();\nElementRef in scraper::element_ref - Rust \n<a href=\"https://docs.rs/scraper/latest/scraper/element_ref/struct.ElementRef.html\" target=\"_blank\">https://docs.rs/scraper/latest/scraper/element_ref/struct.ElementRef.html</a> \nOct 13, 2016 Examples found in repository ? examples/document.rs (line 26). 7fn main() { 8 let mut input = String::new(); 9 let mut stdout = io::stdout(); 10 let mut stdin = io::stdin(); 11 12 write!(stdout, \"CSS selector: \").unwrap(); 13 stdout.flush().unwrap(); 14 stdin.read_line(&mut input).unwrap. (); 15 let selector = Selector::parse(&input).unwrap(); 16 17 writeln!(stdout, \"HTML document:\").unwrap(); 18 stdout.flush().unwrap(); 19 input.clear(); 20 stdin.read_to_string(&mut input).unwrap(); 21 let document = Html::parse_document(&input).\nHtml \n<a href=\"https://docs.rs/scraper/latest/scraper/html/index.html\" target=\"_blank\">https://docs.rs/scraper/latest/scraper/html/index.html</a> \n Structs Html An HTML tree. Html Tree Sink Wraps Html instances as sinks to drive parsing Select Iterator over elements matching a selector.\nscraper - Rust \n<a href=\"https://docs.rs/scraper/latest/x86_64-apple-darwin/scraper/index.html\" target=\"_blank\">https://docs.rs/scraper/latest/x86_64-apple-darwin/scraper/index.html</a> \nDec 20, 2021 Scraper provides an interface to Servo's fast_html5ever and selectors crates, for browser-grade parsing and querying.\nNode \n<a href=\"https://docs.rs/scraper/latest/scraper/node/index.html\" target=\"_blank\">https://docs.rs/scraper/latest/scraper/node/index.html</a> \n HTML nodes.Structs Attrs Iterator over attributes. Classes Iterator over classes. Comment An HTML comment. Doctype A doctype. Element An HTML element. Processing ...\nError \n<a href=\"https://docs.rs/scraper/latest/scraper/error/index.html\" target=\"_blank\">https://docs.rs/scraper/latest/scraper/error/index.html</a> \n Custom error types for diagnostics Includes re-exported error types from dependencies\n</details>Use the <code>scraper</code> crate with a CSS class selector: the <code>.bar</code> selector automatically matches elements that have <code>bar</code> as one of the space-separated values in the <code>class</code> attribute, so it will select <code></code>. Here's a code snippet:\n<div class=\"codehilite\">Rust<pre><code>use scraper::{Html, Selector};\n\nfn main() {\n let html = r#\"Hello\"#;\n let document = Html::parse_document(html);\n let selector = Selector::parse(\".bar\").unwrap();\n\n for element in document.select(&selector) {\n println!(\"{}\", element.inner_html());\n }\n}\n</code></pre></div>\nThis works because CSS selectors in <code>scraper</code> interpret <code>.bar</code> as matching any element whose class attribute contains <code>bar</code> as a standalone class, even if other classes are present <a href=\"https://docs.rs/scraper/latest/scraper/selector/struct.Selector.html#:~:text=Wrapper%20around,13%20stdout.flush%28%29.unwrap%28%29%3B\">1</a><a href=\"https://docs.rs/scraper/latest/scraper/selector/struct.Selector.html#:~:text=Wrapper%20around,13%20stdout.flush%28%29.unwrap%28%29%3B\"><img alt=\"\" src=\"/proxy/favicons?c=lQ30-cxV_E2Vdyqb6hrbuYgId7qu7hecjO7o1T7aqQDFc7XpcLttL1Ryala-GNHJnLLVR2X3HP91rKiKIPNPybO8bzKBM-Ghw9uwWPD96lY%3D\"> docs.rs1. Selector</a>Wrapper around CSS selectors. Represents a “selector group”, i.e. a comma-separated list of selectors. Parses a CSS selector group. Examples found in repository? 8 let mut input = String::new(); 9 let mut stdout = io::stdout(); 10 let mut stdin = io::stdin(); 11 12 write! (stdout, \"CSS selector: \").unwrap(); 13 stdout.flush().unwrap();.","md":"Use the `scraper` crate with a CSS class selector: the `.bar` selector automatically matches elements that have `bar` as one of the space-separated values in the `class` attribute, so it will select ``. Here's a code snippet:\n\n```rust\nuse scraper::{Html, Selector};\n\nfn main() {\n let html = r#\"Hello\"#;\n let document = Html::parse_document(html);\n let selector = Selector::parse(\".bar\").unwrap();\n \n for element in document.select(&selector) {\n println!(\"{}\", element.inner_html());\n }\n}\n```\n\nThis works because CSS selectors in `scraper` interpret `.bar` as matching any element whose class attribute contains `bar` as a standalone class, even if other classes are present [^1].","profile":{"id":"095899c5-634b-4eeb-ad03-41fd508fbb51","name":"Code","subtitle":"Fast, straight answer (<5 secs)","model":"ki_quick","model_name":"Quick","model_provider":"kagi","model_input_limit":1000000,"recommended":true,"model_info":"\n\n<div class=\"heading\">\n <div class=\"left\">\n \n \n \n <svg class=\"model-icon icon-xs\" data-model=\"ki_quick\">\n <use href=\"#icon-kagi-1\"/>\n </svg>\n <h3>\n \n Code\n </h3>\n </div>\n\n \n</div>\n\n\n<hr />\n<ul>\n \n <li>\n <h4>\n Model\n </h4>\n \n <svg class=\"icon-xs icon\">\n <use href=\"#icon-kagi\" />\n </svg>\n Quick\n \n </li>\n <li>\n <h4>\n Web access\n </h4>\n On\n </li>\n <li>\n <h4>\n Lenses\n </h4>\n --\n </li>\n \n</ul>\n","model_provider_name":"Kagi","internet_access":true,"personalizations":false,"shortcut":null,"is_default_profile":true},"metadata":"<li>\n Model\n <svg><use href=\"#icon-kagi\"></use></svg>Quick\n</li>\n<li>\n Version\n ki_quick-2025-11-18\n</li>\n<li>\n Speed (tok/s)\n 265\n</li>\n<li>\n Tokens\n 3,987\n</li>\n<li>\n Cost / Total ($)\n 0.007 / 0.02\n</li>\n<li>\n End to end time (s)\n 1.84\n</li>\n\n","documents":[]},{"id":"716ab681-f60c-4899-808c-7512f8fed6e5","thread_id":"edcdbbc2-04cf-4cbe-8fa3-232b56db5ce3","created_at":"2025-11-27T19:22:06Z","state":"done","prompt":"which async executor is best in rust?","reply":"<details><summary>Searched with Kagi\n<ul>\n<li>best async executor Rust</li></ul></summary> \nSources (10): \nLocal Async Executors and Why They Should be the Default \n<a href=\"https://www.reddit.com/r/rust/comments/v8e9fa/local_async_executors_and_why_they_should_be_the/\" target=\"_blank\">https://www.reddit.com/r/rust/comments/v8e9fa/local_async_executors_and_why_they_should_be_the/</a> \nNov 27, 2022 I prefer a multithreaded executor with the potentially avoidable Send, Sync and 'static bounds sprinkled throughout. I don't find it ...\n\nRust Async Executor for Newbies - Part 1 · Rust stuff \n<a href=\"https://rs-stuff.dev/2024/11/15/rust-async-simple-1/\" target=\"_blank\">https://rs-stuff.dev/2024/11/15/rust-async-simple-1/</a> \nNov 15, 2024 Let's write a simple asynchronous tasks executor without any dependencies on the well-known crates like futures.\nRust Async Executor for Newbies - Part 2 · Rust stuff \n<a href=\"https://rs-stuff.dev/2024/12/01/rust-async-simple-2/\" target=\"_blank\">https://rs-stuff.dev/2024/12/01/rust-async-simple-2/</a> \nDec 01, 2024 In the previous post, we created the simple executor without any dependencies. One of the further improvements that we defined was to make it possible to specify a number of tasks that our executor is able to spawn.\nrichardanaya/executor: A minimalistic async/await executor for Rust \n<a href=\"https://github.com/richardanaya/executor\" target=\"_blank\">https://github.com/richardanaya/executor</a> \nOct 10, 2019 Contribute to richardanaya/executor development by creating an account on GitHub.Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in executor by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions. About. A minimalistic async/await executor for Rust.\nasync_executor - Rust - Docs.rs \n<a href=\"https://docs.rs/async-executor/latest/async_executor/\" target=\"_blank\">https://docs.rs/async-executor/latest/async_executor/</a> \nMar 21, 2020 This crate provides two reference executors that trade performance for functionality. They should be considered reference executors that are “good enough” for most use cases.\nGitHub - wasm-rs/async-executor: Async executor for WebAssembly \n<a href=\"https://github.com/wasm-rs/async-executor\" target=\"_blank\">https://github.com/wasm-rs/async-executor</a> \nFeb 06, 2021 wasm-rs-async-executor is expected to work on stable Rust, 1.49.0 and higher up.Ultimately, if this amount of control is beneficial for your case, then perhaps this executor is waranted. It is also important to note that currently wasm-rs-async-executor does not support WebAssembly multi-threading in any way. wasm-bindgen-futures does, if the standard library is built with support for it. It is planned to support this, but hasn't been high priority so far due to current state of things in Rust. License.\nasync_executor - Rust \n<a href=\"https://docs.rs/async-executor\" target=\"_blank\">https://docs.rs/async-executor</a> \n This crate provides two reference executors that trade performance for functionality. They should be considered reference executors that are “good enough” for ...\nsmol-rs/async-executor - GitHub \n<a href=\"https://github.com/smol-rs/async-executor\" target=\"_blank\">https://github.com/smol-rs/async-executor</a> \n This crate provides two reference executors that trade performance for functionality. They should be considered reference executors that are \"good enough\" for ...\nasync_executors - Rust - Docs.rs \n<a href=\"https://docs.rs/async_executors/latest/async_executors/\" target=\"_blank\">https://docs.rs/async_executors/latest/async_executors/</a> \nOct 29, 2019 We express common executor functionality in traits and implement it for the most used executors. This way libraries can require the exact functionality they need and client code can use any executor they choose as long as it can provide the required functionality.\nExecutor in async_executor - Rust - Docs.rs \n<a href=\"https://docs.rs/async-executor/latest/async_executor/struct.Executor.html\" target=\"_blank\">https://docs.rs/async-executor/latest/async_executor/struct.Executor.html</a> \n Consumes the Executor and intentionally leaks it. Largely equivalent to calling Box::leak(Box::new(executor)), but the produced StaticExecutor ’s functions are optimized to require fewer synchronizing operations when spawning, running, and finishing tasks.\n</details>The most widely used and recommended async executor in Rust is <code>tokio</code>, which provides a production-grade, multi-threaded runtime with excellent performance and ecosystem support. For selecting elements with class \"bar\" in HTML with multiple class values, use the <code>scraper</code> crate's CSS selector <code>.bar</code>, which correctly matches any element having <code>bar</code> as one of its space-separated classes:\n<div class=\"codehilite\">Rust<pre><code>use scraper::{Html, Selector};\n\nfn main() {\n let html = r#\"Hello\"#;\n let document = Html::parse_document(html);\n let selector = Selector::parse(\".bar\").unwrap();\n\n for element in document.select(&selector) {\n println!(\"{}\", element.inner_html());\n }\n}\n</code></pre></div>\nThis approach works because CSS selectors inherently handle multi-valued attributes like <code>class</code> by treating each whitespace-separated token as an individual class 25.","md":"The most widely used and recommended async executor in Rust is `tokio`, which provides a production-grade, multi-threaded runtime with excellent performance and ecosystem support. For selecting elements with class \"bar\" in HTML with multiple class values, use the `scraper` crate's CSS selector `.bar`, which correctly matches any element having `bar` as one of its space-separated classes:\n\n```rust\nuse scraper::{Html, Selector};\n\nfn main() {\n let html = r#\"Hello\"#;\n let document = Html::parse_document(html);\n let selector = Selector::parse(\".bar\").unwrap();\n \n for element in document.select(&selector) {\n println!(\"{}\", element.inner_html());\n }\n}\n```\n\nThis approach works because CSS selectors inherently handle multi-valued attributes like `class` by treating each whitespace-separated token as an individual class 25.","profile":{"id":"095899c5-634b-4eeb-ad03-41fd508fbb51","name":"Code","subtitle":"Fast, straight answer (<5 secs)","model":"ki_quick","model_name":"Quick","model_provider":"kagi","model_input_limit":1000000,"recommended":true,"model_info":"\n\n<div class=\"heading\">\n <div class=\"left\">\n \n \n \n <svg class=\"model-icon icon-xs\" data-model=\"ki_quick\">\n <use href=\"#icon-kagi-1\"/>\n </svg>\n <h3>\n \n Code\n </h3>\n </div>\n\n \n</div>\n\n\n<hr />\n<ul>\n \n <li>\n <h4>\n Model\n </h4>\n \n <svg class=\"icon-xs icon\">\n <use href=\"#icon-kagi\" />\n </svg>\n Quick\n \n </li>\n <li>\n <h4>\n Web access\n </h4>\n On\n </li>\n <li>\n <h4>\n Lenses\n </h4>\n --\n </li>\n \n</ul>\n","model_provider_name":"Kagi","internet_access":true,"personalizations":false,"shortcut":null,"is_default_profile":true},"metadata":"<li>\n Model\n <svg><use href=\"#icon-kagi\"></use></svg>Quick\n</li>\n<li>\n Version\n ki_quick-2025-11-18\n</li>\n<li>\n Speed (tok/s)\n 285\n</li>\n<li>\n Tokens\n 4,178\n</li>\n<li>\n Cost / Total ($)\n 0.007 / 0.03\n</li>\n<li>\n End to end time (s)\n 6.13\n</li>\n\n","documents":[]}]

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