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<!-- Example DTD -->
<!ENTITY % img "MyImage.gif">
<!ENTITY % foobar "xxx">
<!ENTITY foobar "xxx">
<!ENTITY outside SYSTEM "entityValue">
<!ELEMENT entry3 ( (variables | (tmp, x)), (record)* , (a*, b,c,d, (e|f)) , (foo)+ ) >
<!ELEMENT dataset ( variables, ((record)* | tmp) ) >
<!ELEMENT entry1 ( variables, (record)* , (tmp | variable)* , (foo)* ) >
<!ELEMENT entry0 ( (variables | (tmp, x)), (record)* , (tmp | variable)* , (foo)* ) >
<!ELEMENT entry2 ( variables, (record)* , (tmp , variable)* , foo ) >
<!ELEMENT tmp ( #PCDATA ) >
<!ELEMENT record ( #PCDATA ) >
<!ELEMENT variable ( #PCDATA ) >
<!ELEMENT variables ( variable )* >
<!ELEMENT entry ( variables, (record)* , tmp ) >
<!ATTLIST dataset
name CDATA #REQUIRED
numRecords CDATA #IMPLIED
source CDATA #IMPLIED
>
<!ATTLIST variables
count CDATA #IMPLIED
>
<!ATTLIST record
id CDATA #REQUIRED
>
<!-- Allow the name to be specified as an attribute -->
<!ATTLIST variable
type CDATA #IMPLIED
levels CDATA #IMPLIED
unit CDATA #IMPLIED
>
<!ATTLIST entry
a CDATA #FIXED "fixed a"
c (one | two) #IMPLIED
>
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