I have found several sources regarding how to validate an xml document against a schema, but I have an application in ruby in which I need to validate that a user supplied schema is a valid schema itself. Is there a way to that I can check this? Is there an XSD schema to validate an XSD schema? Or are there libraries or gems that do this for me?
+3
A:
You can use Nokogiri for this:
begin
schema = Nokogiri::XML::Schema(File.read('invalid_schema.xsd'))
rescue Nokogiri::XML::SyntaxError => e
puts "Invalid XML Schema!"
end
Greg Campbell
2009-09-08 23:01:14
+1 for Nokogiri
Kevin
2009-09-12 15:36:32
+4
A:
As schemas are XML documents themselves you can validate them like any other document. Both an XSD and a DTD for XML Schema can be found on this site http://www.w3.org/2001/XMLSchema.
Martin Skøtt
2009-09-08 23:28:55