lexbor
Nokogiri
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lexbor | Nokogiri | |
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10 | 20 | |
881 | 6,100 | |
1.7% | 0.1% | |
8.5 | 9.5 | |
6 days ago | 4 days ago | |
C | C | |
Apache License 2.0 | 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.
lexbor
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Modest: A fast HTML renderer implemented as a pure C99 library
Project is deprecated in favour of the same developer's lexbor project[0].
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Created a performance-focused HTML5 parser for Ruby, trying to be API-compatible with Nokogiri
It supports both CSS selectors and XPath like Nokogiri, but with separate engines - parsing and CSS engine by Lexbor, XPath engine by libxml2. (Nokogiri internally converts CSS selectors to XPath syntax, and uses XPath engine for all searches).
- Lexbor: Fast HTML Renderer library in C
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Andreas Kling (of SerenityOS fame) is building a new Linux browser using SerenityOS libraries
An HTML parser, probably the simplest relatively modern example I could find is 1MB https://github.com/lexbor/lexbor (haven't used it, but might look more into it now that I know it exists.)
- Lexbor: Open-source HTML Renderer library in C
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The State of Web Scraping in 2021
Lazyweb link: https://github.com/rushter/selectolax
although I don't follow the need to have what appears to be two completely separate HTML parsing C libraries as dependencies; seeing this in the readme for Modest gives me the shivers because lxml has _seen some shit_
> Modest is a fast HTML renderer implemented as a pure C99 library with no outside dependencies.
although its other dep seems much more cognizant about the HTML5 standard, for whatever that's worth: https://github.com/lexbor/lexbor#lexbor
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> It looks like the author of the article just googled some libraries for each language and didn't research the topic
Heh, oh, new to the Internet, are you? :-D
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Libraries for retrivieng html data from website
Lexbor is here: https://github.com/lexbor/lexbor
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What second language to learn after Python?
Well, regarding HTML5, what I've found was libxml (does not support tag-soup HTML5), https://github.com/lexbor/lexbor, for which I was unable to find good documentation ( see https://lexbor.com/docs/lexbor/#dom), Apache Xerces (appears to not support tag-soup HTML5 as well), and Gumbo, which does not appear to be active and to support selectors and XPath (although there are libraries that add that).
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You can't parse [X]HTML with regex
I think we've all (mostly?) tried it. It really is the Wild West of the web when you're trying to parse other people's HTML, though.
I've played around with this parser which is extremely quick. https://github.com/lexbor/lexbor
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How SerpApi sped up data extraction from HTML from 3s to 800ms (or How to profile and optimize Ruby code and C extension)
I’m glad to have the opportunity to contribute to an open-source project that is used by thousands of people. Hopefully, we will speed up Nokogiri (or XML parser it uses) to match the performance of html5ever or lexbor at some point in the future. 800 ms to extract data from HTML is still too much.
Nokogiri
- Web Scraping in Python – The Complete Guide
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Did you know Nokogiri now has opt-in HTML5 parsing?
release planning: v1.16.0 · Issue #2897 · sparklemotion/nokogiri
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As a Go developer, I’m surprised Crystal isn’t more popular
What's holding me back from going all in with Crystal is I have a lot of pre-existing Ruby code, and porting Ruby code to Crystal can be tricky. For example, Crystal lacks an Enumerator class (aka generators) due to captured block semantics. I also wish the shards ecosystem was a little more mature; for example there's multiple HTML parsing libraries, but none have all of the features that Ruby's Nokogiri has. For new greenfield backend projects, I would totally use Crystal.
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Two months into learning Ruby, it is the most beautiful language I ever learned
Welcome! Ruby isn't exactly "dying", but the hype/popularity is definitely fading. This is primarily because Ruby is no longer "new", most of Ruby's popularity came from Rails, and now Rails is no longer the "new hotness". However, Ruby still has lots of awesome features and lots of awesome other libraries and frameworks, such as the new fancy irb gem that uses reline, nokogiri, chunky_png, the async gems, Dragon Ruby, SciRuby, Ronin, and the new Hanami web framework.
- What should I be learning?
- Comparable maintained Kimurai alternative?
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In "Your Name" (2016), Mitsuha and Tesshi are seen turning a tree into their makeshift café, which is why one of the trees in the town is later missing
great for hacking at xml
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Ditch Your Version Manager
Mike has worked hard over the years to have Nokogiri come with its dependencies. It does come with libxml and all that is required.
From https://nokogiri.org
> These dependencies are met by default by Nokogiri's packaged versions of the libxml2 and libxslt source code, but a configuration option --use-system-libraries is provided to allow specification of alternative library locations.
Some authors work hard to have their tools do the right thing and consistently.
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Web scraping with rails
If the page is rendered as html you can use Nokogiri. It has great support and is pretty easy to get started with too.
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Nokogiri 1.12 supports HTML5 parsing (after assimilating Nokogumbo)
And even now, pulling in a Java-based HTML5 parser is still probably easier than re-implementing in FFI, which is why I created https://github.com/sparklemotion/nokogiri/issues/2227 and would love to have this the conversation there if possible.
What are some alternatives?
myhtml - Fast C/C++ HTML 5 Parser. Using threads.
Oga - Oga is an XML/HTML parser written in Ruby.
selectolax - Python binding to Modest and Lexbor engines (fast HTML5 parser with CSS selectors).
Ox - Ruby Optimized XML Parser
gumbo-parser - An HTML5 parsing library in pure C99
HTML::Pipeline - HTML processing filters and utilities
Xerces-C++ - Apache Xerces-C validating XML parser
Oj - Optimized JSON
nokogiri-rust - Ruby FFI wrapper around scraper crate to be used instead of Nokogiri. Status: proof of concept.
ROXML - ROXML is a module for binding Ruby classes to XML. It supports custom mapping and bidirectional marshalling between Ruby and XML using annotation-style class methods, via Nokogiri or LibXML.
pyppeteer - Headless chrome/chromium automation library (unofficial port of puppeteer)
HappyMapper - Object to XML mapping library, using Nokogiri (Fork from John Nunemaker's Happymapper)