HTML and CSS Reference
Unparsed Entities and Notation Declarations
A notation declaration tells a processor that an entity refers to non-XML content
that should not be parsed. Unparsed entities are used most frequently on XML elements
that incorporate graphics into a document.
A notation also has to be declared in an entity. An unparsed entity is indicated by
the NDATA keyword. Ampersands and semicolons are not used with unparsed data.
Table H-23 shows an example.
Table H-23 Unparsed Entity Example
<!ENTITY imageA SYSTEM www.imaginary_site.org/myimage.gif NDATA GIF89a><image src="imageA" />