att.pointing

att.pointing defines a set of attributes used by all elements which point to other elements by means of one or more URI references. 3.6 Simple Links and Cross-References
組件linking — 16 Linking, Segmentation, and Alignment
會員 att.pointing.group [ altGrp joinGrp linkGrp] alt join link ptr ref
屬性
typecategorizes the pointer in some respect, using any convenient set of categories.
狀態 非必備的
資料類型 
data.enumerated
值 The type should indicate the intended function of the pointer, or the rhetorical relationship between its source and target.
evaluatespecifies the intended meaning when the target of a pointer is itself a pointer.
狀態 非必備的
合法的值是:
all
if the element pointed to is itself a pointer, then the target of that pointer will be taken, and so on, until an element is found which is not a pointer.
one
if the element pointed to is itself a pointer, then its target (whether a pointer or not) is taken as the target of this pointer.
none
no further evaluation of targets is carried out beyond that needed to find the element specified in the pointer's target.
註
If no value is given, the application program is responsible for deciding (possibly on the basis of user input) how far to trace a chain of pointers.