LOL HTML

具有基于 CSS 选择器 API 的低输出延迟流式 HTML 解析器/重写器。「Low output latency streaming HTML parser/rewriter with CSS selector-based API」

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LOL HTML

Low Output Latency streaming HTML rewriter/parser with CSS-selector based API.

It is designed to modify HTML on the fly with minimal buffering. It can quickly handle very large
documents, and operate in environments with limited memory resources. More details can be found in the blog post.

The crate serves as a back-end for the HTML rewriting functionality of
Cloudflare Workers, but can be used
as a standalone library with a convenient API for a wide variety of HTML rewriting/analysis tasks.

Documentation

https://docs.rs/lol_html/

Bindings for other programming languages

Example

Rewrite insecure hyperlinks:

use lol_html::{element, HtmlRewriter, Settings};

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let mut output = vec![];

    let mut rewriter = HtmlRewriter::try_new(
        Settings {
            element_content_handlers: vec![
                element!("a[href]",, el, {
                    let href = el
                        .get_attribute("href")
                        .expect("href was required")
                        .replace("http:", "https:");

                    el.set_attribute("href", &href)?;

                    Ok(())
                })
            ],
            ..Settings::default()
        },, c: &[u8], output.extend_from_slice(c)
    )?;

    rewriter.write(b"<div><a href=")?;
    rewriter.write(b"http://example.com>")?;
    rewriter.write(b"</a></div>")?;
    rewriter.end()?;

    assert_eq!(
        String::from_utf8(output)?,
        r#"<div><a href="https://example.com"></a></div>"#
    );
    Ok(())
}

License

BSD licensed. See the LICENSE file for details.

Main metrics

Overview
Name With Ownercloudflare/lol-html
Primary LanguageRust
Program languageRust (Language Count: 5)
Platform
License:BSD 3-Clause "New" or "Revised" License
所有者活动
Created At2019-09-09 02:20:32
Pushed At2025-06-26 09:09:50
Last Commit At
Release Count15
Last Release Namev2.5.0 (Posted on )
First Release Namev0.2.0 (Posted on )
用户参与
Stargazers Count1.8k
Watchers Count27
Fork Count88
Commits Count603
Has Issues Enabled
Issues Count98
Issue Open Count35
Pull Requests Count141
Pull Requests Open Count5
Pull Requests Close Count33
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