0 1 foo 0 0
1 14 #text 0 1 
1 8 #comment 0 1  def='NT-Char'
1 8 #comment 0 1 >Char* ']]>' Char*))
']]>'
CDATA sections
| '<!DOCTYPE' 
(Char - ('[' | ']'))+
('[' 
simpleDTD*
']')? '>'
doc type declaration
simpleDTD
'<!&como;' 
(Char* - 
(Char* '&comc;' Char*))
'&comc;>'
1 14 #text 0 1 
0 15 foo 0 0