Java based XML Validator (for ruby)

Why do this when libxml & friends already support validation?

Libxml (fast) does not support mixed-namespace validation and as of this writing have no plans to. JAXP (slow) is a very complete XML stack and does support mixed-namespace validation.

require 'jxml/validator'

val = JXML::Validator.new
results = val.validate some_big_nasty_xml

results[:errors].each do |e|
  puts "#{e[:line]}: #{e[:message]}"
end

• cache feature (already implemented in java, need ruby to hook into it)
• xml parsing options
• command line tool