lol-html
pup
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lol-html | pup | |
---|---|---|
8 | 52 | |
1,390 | 7,998 | |
1.9% | - | |
5.7 | 0.0 | |
about 1 month ago | about 1 month ago | |
Rust | HTML | |
BSD 3-clause "New" or "Revised" License | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
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.
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?
pup
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script to download some notes
And lnk=$(curl -s https://www.selfstudys.com$url |grep "PDFFlip" | cut -d '"' -f 6) to lnk=$(curl -s https://www.selfstudys.com$url | pup "div#PDFF attr{source}" ) here pup will print content of source attribute from div tag with id PDFF i dont know that much about html & css so this is what i came up with. but i am sure you can also select class & make list of suburls from them. check out the video from bugswriter on pup or read docs from git hub for more info github link: https://github.com/ericchiang/pup
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What monitoring tool do you use or recommend?
jq is pretty amazing. If you are comfortable with its jquery-like CSS selector syntax, then I should also mention a couple similar cli utilities that apply it to HTML: htmlp and pup.
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Creating a data scraper as a beginner?
Regex is not a great tool for parsing web pages. Open up a browser dev tools window and select a bit of the page. Right click > copy... XPath expression or CSS selector. A proper web scraping tool will accept either of those. No muss, no fuss. You can even use simple command line tools: xpath or pup
- December 5, 2022: FLiP Stack Weekly
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Show HN: A tool like jq, but for parsing HTML
This is HTML to JSON, written in Rust, and there's also pup[1] which I found out about just the other day on HN[2] which uses a very similar syntax (CSS selectors) but outputs HTML and is written in Go.
I can see room for both though it would interesting to have a more detailed comparison to go on (e.g. types of HTML, speed etc).
[1] https://github.com/ericchiang/pup
[2] https://news.ycombinator.com/item?id=33805732
- Pup: Parsing HTML at the command line
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pup: Parsing HTML at the Command Line
It looks like the project became inactive for a bit and there are alternatives such as htmlq, etc. https://github.com/ericchiang/pup/issues/150
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Converting field before delimiter to uppercase and how to replace with multiple newlines
Another tool worth mentioning is pup - it can produce JSON output which means you can pipe it to jq
What are some alternatives?
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
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.
yq - Command-line YAML, XML, TOML processor - jq wrapper for YAML/XML/TOML documents
gron - Make JSON greppable!
tools - all-in collection of productivity scripts, CLI tools, utility libraries, fuse filesystems, and also some stuff
hq - lightweight command line HTML processor using CSS and XPath selectors
cascadia - Go cascadia package command line CSS selector
cargo-expand - Subcommand to show result of macro expansion
ddgr - :duck: DuckDuckGo from the terminal