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GitHub - rust-scraper/scraper: HTML parsing and querying with CSS selectors

HTML parsing and querying with CSS selectors. Contribute to rust-scraper/scraper development by creating an account on GitHub.

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GitHub - rust-scraper/scraper: HTML parsing and querying with CSS selectors

HTML parsing and querying with CSS selectors. Contribute to rust-scraper/scraper development by creating an account on GitHub.

scraper

HTML parsing and querying with CSS selectors.

scraper is on Crates.io and GitHub.

Scraper provides an interface to Servo's html5ever and selectors crates, for browser-grade parsing and querying.

Examples

Parsing a document

use scraper::Html;

let html = r#"
    <!DOCTYPE html>
    <meta charset="utf-8">
    <title>Hello, world!</title>
    <h1 class="foo">Hello, <i>world!</i></h1>
"#;

let document = Html::parse_document(html);

Parsing a fragment

use scraper::Html;
let fragment = Html::parse_fragment("<h1>Hello, <i>world!</i></h1>");

Parsing a selector

use scraper::Selector;
let selector = Selector::parse("h1.foo").unwrap();

Selecting elements

use scraper::{Html, Selector};

let html = r#"
    <ul>
        <li>Foo</li>
        <li>Bar</li>
        <li>Baz</li>
    </ul>
"#;

let fragment = Html::parse_fragment(html);
let selector = Selector::parse("li").unwrap();

for element in fragment.select(&selector) {
    assert_eq!("li", element.value().name());
}

Selecting descendent elements

use scraper::{Html, Selector};

let html = r#"
    <ul>
        <li>Foo</li>
        <li>Bar</li>
        <li>Baz</li>
    </ul>
"#;

let fragment = Html::parse_fragment(html);
let ul_selector = Selector::parse("ul").unwrap();
let li_selector = Selector::parse("li").unwrap();

let ul = fragment.select(&ul_selector).next().unwrap();
for element in ul.select(&li_selector) {
    assert_eq!("li", element.value().name());
}

Accessing element attributes

use scraper::{Html, Selector};

let fragment = Html::parse_fragment(r#"<input name="foo" value="bar">"#);
let selector = Selector::parse(r#"input[name="foo"]"#).unwrap();

let input = fragment.select(&selector).next().unwrap();
assert_eq!(Some("bar"), input.value().attr("value"));

Serializing HTML and inner HTML

use scraper::{Html, Selector};

let fragment = Html::parse_fragment("<h1>Hello, <i>world!</i></h1>");
let selector = Selector::parse("h1").unwrap();

let h1 = fragment.select(&selector).next().unwrap();

assert_eq!("<h1>Hello, <i>world!</i></h1>", h1.html());
assert_eq!("Hello, <i>world!</i>", h1.inner_html());

Accessing descendent text

use scraper::{Html, Selector};

let fragment = Html::parse_fragment("<h1>Hello, <i>world!</i></h1>");
let selector = Selector::parse("h1").unwrap();

let h1 = fragment.select(&selector).next().unwrap();
let text = h1.text().collect::<Vec<_>>();

assert_eq!(vec!["Hello, ", "world!"], text);

Manipulating the DOM

use html5ever::tree_builder::TreeSink;
use scraper::{Html, Selector};

let html = "<html><body>hello<p class=\"hello\">REMOVE ME</p></body></html>";
let selector = Selector::parse(".hello").unwrap();
let mut document = Html::parse_document(html);
let node_ids: Vec<_> = document.select(&selector).map(|x| x.id()).collect();
for id in node_ids {
    document.remove_from_parent(&id);
}
assert_eq!(document.html(), "<html><head></head><body>hello</body></html>");

Contributing

Please feel free to open pull requests. If you're planning on implementing something big (i.e. not fixing a typo, a small bug fix, minor refactor, etc) then please open an issue first.

0x5a.live

GitHub - rust-scraper/scraper: HTML parsing and querying with CSS selectors

GitHub - rust-scraper/scraper: HTML parsing and querying with CSS selectors

scraper

Examples

Parsing a document

Parsing a fragment

Parsing a selector

Selecting elements

Selecting descendent elements

Accessing element attributes

Serializing HTML and inner HTML

Accessing descendent text

Manipulating the DOM

Contributing

Rust Resources

Resources

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