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@node Property Functions, Element Functions, Attribute Functions, Functions
@chapter Property Functions
@itemize @bullet
@item
Function: int rdfGetProperty(RdfElement *parent, const char *property,
RdfNamespace *ns, char **value, RdfElement **element)
@findex rdfGetProperty
Returns the element or its value with the specified name in a
description or container.
To return only the property's value, pass a pointer to a string for
value and NULL for element.
Likewise, you can retrieve only the element by passing a pointer to a
pointer of an RdfElement for element and NULL for value.
If you wish to retrieve both the value and the element, pass a pointer
to a string for value and a pointer to a pointer of an RdfElement to
element.
If the property found is a Bag container, RDF_BAG is returned.
If it's a Sequence container, RDF_SEQ is returned.
If it's an Alternate container, RDF_ALT is returned.
If it's an RDF description, RDF_DESC is returned.
If the property is a normal property, 0 is returned.
If the property was not found, -1 is returned.
@itemize @minus
@item
parent: The description containing the property.
@item
property: The name of the property to retrieve.
@item
ns: The namespace of the property.
@item
value: The returned value, unless NULL is passed.
@item
element: The returned element, unless NULL is passed.
@end itemize
@item
Function: RdfElement *rdfSetProperty(RdfElement *parent,
const char *property, RdfNamespace *ns, const char *value)
@findex rdfSetProperty
Sets the value of a property in a description or container.
The new element is returned.
@itemize @minus
@item
parent: The description or container which will hold the property.
@item
property: The name of the property.
@item
ns: The namespace of the property.
@item
value: The property's value.
@end itemize
@item
Function: RdfElement *rdfSetElement(RdfElement *parent,
const char *property, RdfNamespace *ns, RdfElement *element)
@findex rdfSetElement
Sets the element of a property in a description or container.
The element is returned.
@itemize @minus
@item
parent: The description or container which will hold the property.
@item
property: The name of the property.
@item
ns: The namespace of the property.
@item
element: The property's element.
@end itemize
@item
Function: void rdfRemoveProperty(RdfElement *parent,
const char *property, RdfNamespace *ns)
@findex rdfRemoveProperty
Removes a property from a description or container.
@itemize @minus
@item
parent: The description or container which holds the property.
@item
property: The property's name.
@item
ns: The property's namespace.
@end itemize
@item
Function: void rdfRemoveElement(RdfElement *element)
Removes an element from a description or container.
@itemize @minus
@item
element: The element to remove.
@end itemize
@end itemize
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