Extptr
THDL Toolbox > Places & Geography > THDL Gazetteer > Gazetteer DTD Decoded For Dummies > extptr Element
Details for the element "extptr"from the THDL Gazetteer DTD Decoded For Dummies
Definition of the Element
<!ELEMENT extptr EMPTY>
<!ATTLIST extptr %a.common;
entityref ENTITY #IMPLIED
href CDATA #IMPLIED
xpointer CDATA #IMPLIED>
Description of the Element
extptr = External Pointer. An empty linking element which connects the gazetteer to an external (most often, binary) electronic object, such as an image. It is a semantic error not to have either an entityref or href attribute.
Attributes of the Element
The href attribute is provided as a substitute for entityref's actual URI for those systems incapable of handling entityrefs.
The xpointer attribute is for specifying the target using CDATA, e.g. an XPath expression.
XML Markup Examples
TBA.