#data
<!DOCTYPE a [
  <!NOTATION hoge SYSTEM "http://a/">
]><a></a>
#is-document
#errors
/a;VC:Element Valid:declared;m
/a;unknown namespace element;u

#data
<!DOCTYPE a [
  <!NOTATION h:oge SYSTEM "http://a/">
]><a></a>
#is-document
#errors
/!DOCTYPE/!NOTATION h:oge;xml:ncname syntax;m
/a;VC:Element Valid:declared;m
/a;unknown namespace element;u

#data
<!DOCTYPE a [
  <!NOTATION h!oge SYSTEM "http://a/">
]><a></a>
#is-document
#errors
/!DOCTYPE/!NOTATION h!oge;xml:name syntax;m
/a;VC:Element Valid:declared;m
/a;unknown namespace element;u