Class BeforePosition
source code
AbstractPosition --+
|
BeforePosition
Specify a position where the actual location occurs before it.
Arguments: o position - The upper boundary of where the location can
occur. o extension - An optional argument which must be zero since we
don't have an extension. The argument is provided so that the same number
of arguments can be passed to all position types.
This is used to specify positions like (<10..100) where the
location occurs somewhere before position 10.