R: Query if a name is a valid attribute of a DTD element.
dtdIsAttribute
R Documentation
Query if a name is a valid attribute of a DTD element.
Description
Examines the definition of the DTD element definition identified
by element to see if it supports an attribute named
name.
Usage
dtdIsAttribute(name, element, dtd)
Arguments
name
The name of the attribute being queried
element
The name of the element whose definition is to be used
to obtain the list of valid attributes.
dtd
The DTD containing the definition of the elements,
specifically element.
Value
A logical value indicating if the
list of attributes suppported by the
specified element has an entry named
name.
This does indicate what type of value
that attribute has, whether it is required, implied,
fixed, etc.