CODEWITHSUNDEEP
ruby-on-rails-3nokogiri
cubed3d
cubed3d

Reputation: 1

Removed Nodes with Nokogiri but now I have empty lines in my XML

How can I tighten up my xml to not have the empty lines after I removed some nodes from my xml document?

Upvotes: 0

Views: 657

Answers (1)

the Tin Man
the Tin Man

Reputation: 160551

Nokogiri gives you the ability to fiddle with the text nodes, i.e., the content between nodes:

require 'nokogiri'

doc = Nokogiri::HTML(
'<p>this
    <b>text to remove</b>
    text
</p>')
doc.at('b').remove
doc.at('p').text = doc.at('p').text.gsub(/\n\s*\n/, "\n")

puts doc.text

The carriage returns embedded in the HTML, generating separate lines in the file, are actually in the intervening text nodes. So, after stripping a tag, you'll end up with whitespace-separated "\n" characters in the text nodes. A quick gsub can clean those out.

Upvotes: 1

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