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I have to validate an XML document so it will not accept an invalid XML document.
I did it this way to handle an invalid document:
xml ||= Nokogiri::XML xml_data do |config|
config.strict
end
rescue Nokogiri::XML::SyntaxError => e
puts "caught exception: #{e}"
else
#further processing if no error
But even for the valid XML document, it shows:
caught exception: Extra content at the end of the document
Sample XML i'm using:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE note SYSTEM "Note.dtd">
<note>
<to>Tove</to>
<from>Jani</from>
<heading>Reminder</heading>
<body>Don't forget me this weekend!</body>
</note>
What am I doing wrong?
966
If you want to see whether a document is invalid XML, simply check the errors method of the returned document:
require 'nokogiri'
doc = Nokogiri::XML('<xml><foo></xml>')
doc.errors
# => [#<Nokogiri::XML::SyntaxError: Opening and ending tag mismatch: foo line 1 and xml>,
# #<Nokogiri::XML::SyntaxError: Premature end of data in tag xml line 1>]
If Nokogiri finds any errors it'll populate the errors array.
195
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