tools
lol-html
tools | lol-html | |
---|---|---|
2 | 8 | |
16 | 1,396 | |
- | 0.6% | |
9.4 | 5.7 | |
5 days ago | about 2 months ago | |
Shell | Rust | |
GNU Affero General Public License v3.0 | BSD 3-clause "New" or "Revised" License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
tools
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Ask HN: Share a shell script you like
my collection: https://github.com/bAndie91/tools/tree/master/user-tools
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Like JQ, but for HTML
parsel[0] is a python script in front of the identically named python lib, and extracts parts of the HTML by CSS selector. the advantage of it compared to most similar tools is that you can navigate in the DOM tree up and down to find precisely what you want if the HTML is poorly marked up, or the searched parts are not close to each other.
[0] https://github.com/bAndie91/tools/blob/master/usr/bin/parsel
lol-html
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Ask HN: A fast, Rust HTML parser that works?
So I'm doing some web scraping in Rust, and so I will need to parse HTML. [scraper](https://docs.rs/scraper/latest/scraper/) (which uses [html5ever](https://github.com/servo/html5ever)) is doing fine except that it's the bottleneck of my application.
So I need a faster parser. I've tried [tl](https://docs.rs/tl/latest/tl/) which would've been perfect except that it doesn't actually work on the HTML I have. When I try to `query_selector` the elements I need, it returns nothing.
[Kuchiki](https://docs.rs/kuchiki/latest/kuchiki/) is abandonded.
I couldn't figure out how to get [lol-html](https://github.com/cloudflare/lol-html) to work for me (it's designed for re-writing HTML, whatever that means). It doesn't seem to have an API to extract the inner text of an element.
[html5gum](https://github.com/untitaker/html5gum) seems to be just an HTML tokenizer, or otherwise just too low-level. I have not yet tried [quick-xml](https://github.com/tafia/quick-xml/) but judging from the README, it's pretty low-level too. I mean, if these are the only options left then I will try them. Otherwise, I would love to use a parser that's faster but as ergonomic as `scraper` or `tl`.
At this point, I would be happy with an Lxml bridge/port of some sort. I don't need to mutate HTML, just parse and read data from it.
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How much Rust work is actually going on at Cloudflare?
I'm also in the Workers org but I have had a bit of interaction with Rust. There's some Rust in the Workers runtime using lol-html for HTMLRewriter as well as some tooling and there's the full blown workers-rs framework that I work on, but that's about it for the Rust I work on regularly.
- Is there a library for manipulating HTML?
- pup: Parsing HTML at the Command Line
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Texting Robots: Taming robots.txt with Rust and 34 million tests
Thanks again and happy to answer any questions! My current unreleased Rust projects include a web crawler that uses Tokio + Tokio Console + Reqwest with this crate for robots.txt and a fast text extraction library using lol-html that I am planning to sprinkle with some minimal ML to get Readability.js style intelligent extraction (with training in Python). See Fathom for an example of the ML approach I'll likely take.
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Like JQ, but for HTML
I’d like to see a tool using lol-html [0] and their CSS selector API as a streaming HTML editor.
[0] https://github.com/cloudflare/lol-html
- Things you can’t do in Rust (and what to do instead)
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Problems with building a backend app in Rust in 2020
Cloudflare has open sourced lol-html, a "Low output latency streaming HTML parser/rewriter with CSS selector-based API". Is that what you are looking for?
What are some alternatives?
xidel - Command line tool to download and extract data from HTML/XML pages or JSON-APIs, using CSS, XPath 3.0, XQuery 3.0, JSONiq or pattern matching. It can also create new or transformed XML/HTML/JSON documents.
actor-rust-scraper - Experimental scraper in Rust suited for running locally or on the Apify platform. Inspired by Apify SDK.
htmlq - Like jq, but for HTML.
tq - Perform a lookup by CSS selector on an HTML input
cascadia - Go cascadia package command line CSS selector
yq - Command-line YAML, XML, TOML processor - jq wrapper for YAML/XML/TOML documents
fontpreview - Highly customizable and minimal font previewer written in bash
hq - lightweight command line HTML processor using CSS and XPath selectors
cargo-expand - Subcommand to show result of macro expansion