How Can I Detect Errors In An Html Document Fragment With Ruby?
I'm collecting some HTML formatted content from a web form. Before saving this HTML content, I'd like to do a quick sanity check on it to make sure it looks well-formed (no unclose
Solution 1:
Have you tried w3c_validators?
[1] pry(main)> require 'w3c_validators'
=> true
[2] pry(main)> include W3CValidators
=> Object
[3] pry(main)> p MarkupValidator.new.validate_text('<!DOCTYPE html><html><body><p>foo</p><h1>Unclosed H1<p>bar</p></body></html>');
This gives you very detailed validation result.
Or maybe if you want to just check closing tags, maybe Nokogiri::XML::Document.parse().errors instead, but this probably doesn't work unless doctype is XHTML since a few HTML elements in other doctype don't require even closing tag so. w3c_validators does better
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