XML Element Declaration
An element declaration defines the name and content model of an XML element.
The XML standard's syntax for element declarations is as follows:
<!ELEMENT ElementName
(Content )>
ContentList has the following format:
{(}ElementName1 MultiplicityOperator connector ElementName 2
MultiplicityOperator... Connector ElementName n
MultiplicityOperator{) MultiplicityOperator}
Meaning
- ElementName—name of the element
- Content —content allowed for that element. This can be one of the
following:
EMPTY—no content.ANY—no restrictions on the content.PCDATA—parsed character data (string data).- ContentList—list of child elements and PCDATA sections that the element can contain.
- MultiplicityOperator—single character that defines how many times
an element can occur in the stream. The available options are:
?—the element can occur zero or one times in the stream.*—the element can occur zero, once or many times in the stream.+—the element can occur once or many times in the stream.- No operator—the element must occur exactly once in the stream.
- Connector—comma (
,) or a pipe (|).
Uniface XML Streams
For information on element declarations for Uniface-compliant XML streams, see Uniface-Compliant Element Declarations.
XML Structs
In an XML-based Struct, an element declaration is represented as a named Struct Named
Struct with element name, and one nameless scalar member with the value. The
xmlClass tag is element-declaration.
