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2. Attribute Value Defaulting

Description

It is possible to specify default attribute values in DTD. Attributes then do not have to appear physically on element start-tags.

DTD source 
  <!ELEMENT zvon:logo (#PCDATA)>

<!ATTLIST zvon:logo
          xmlns:xlink   CDATA    #FIXED "http://www.w3.org/1999/xlink"
          xlink:type    (simple) #FIXED "simple"
          xlink:href    CDATA    #FIXED "zvon.gif"
          xlink:show    (embed)  #FIXED "embed"
          xlink:actuate (onLoad) #FIXED "onLoad"
>
Source 
  <zvon:logo xmlns:zvon = "http://www.zvon.org">
 Zvon logo
</zvon:logo>