How do I pretty-print HTML with Nokogiri?

Question

I wrote a web crawler in Ruby and I\'m using Nokogiri::HTML to parse the page. I need to print the page out and while messing around in IRB I noticed a pr

Answer 1

The answer by @mislav is somewhat wrong. Nokogiri does support pretty-printing if you:

• Parse the document as XML
• Instruct Nokogiri to ignore whitespace-only nodes ("blanks") during parsing
• Use to_xhtml or to_xml to specify pretty-printing parameters

In action:

html = '

Main Section 1
Intro

Subhead 1.1
Meat
MOAR MEAT

Subhead 1.2
Meat
'

require 'nokogiri'
doc = Nokogiri::XML(html,&:noblanks)
puts doc
#=> 

#=>   
Main Section 1
#=>   
Intro
#=>   

#=>     
Subhead 1.1
#=>     
Meat
#=>     
MOAR MEAT
#=>   
#=>   

#=>     
Subhead 1.2
#=>     
Meat
#=>   
#=> 

puts doc.to_xhtml( indent:3, indent_text:"." )
#=> 

#=> ...
Main Section 1
#=> ...
Intro
#=> ...

#=> ......
Subhead 1.1
#=> ......
Meat
#=> ......
MOAR MEAT
#=> ...
#=> ...

#=> ......
Subhead 1.2
#=> ......
Meat
#=> ...
#=>