AttributeNmtokens 188 B

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  1. <!DOCTYPE test [
  2. <!ELEMENT test EMPTY>
  3. <!ATTLIST test attr1 NMTOKENS #IMPLIED>
  4. ]>
  5. <!-- Should be invalid due to http://www.w3.org/XML/xml-V10-2e-errata#E20 -->
  6. <test attr1=" a&#x9;b "/>