Are there any HTML parsing libraries?

Question

Hey i'm looking for some html parsing libraries in crystal. Something similar to nokogiri for ruby. I have a working regular expression but would prefer a html parsing library because html + regex == bad. Thanks.

@marmeladze No ruby libraries are "crystal compatible" in the same way you can't use Java libraries from JavaScript, they're entirely different languages. — Stephie, May 07 '17 at 12:49

score 4 · Accepted Answer · answered May 07 '17 at 12:57

The standard way in the Crystal standard library is XML.parse_html. This will give you an XML::Node which has a pretty nice interface.

If you need to use CSS selectors, you can use Crystagiri, although otherwise I don't see much benefit over the stdlib's offering.

Sag0Sag0 · Answer 2 · 2017-05-11T00:16:10.940

3

After several hours of googling i just found out about myhtml, modest and Crystagiri. All of them are HTML parsing libraries.

edited May 11 '17 at 00:16

answered May 07 '17 at 10:12

Sag0Sag0

95
8

add pls links to your answer – Oleh Sobchuk May 08 '17 at 08:02

score 1 · Answer 3 · answered Jan 05 '18 at 08:57

I am the creator of Crystagiri. This is an HTML parser library for Crystal (like the amazing Nokogiri Ruby gem. I won't pretend that Crystagiri does much as Nokogiri but you can use to use CSS selector.

Bellow a basic example:

require "crystagiri"

doc = Crystagiri::HTML.from_url "http://example.com/"
puts doc.css("li > strong.title") { |tag| puts tag.node}
# => <strong class="title"> .. </strong>
# => <strong class="title"> .. </strong>

Thanks to Crystal Lang, Crystagiri is three time faster than Nokogiri (accroding to my test).

Are there any HTML parsing libraries?

3 Answers3