Specification of how string-based segments are delineated.

Item Summary
Name	Type	Multiplicity	Description
position	property int	[0,-1]	Position(s) to which the boundary characters apply.
characters	property string	[0,1]	Characters that make up the boundaries.

Items
- position
  
  Flags: RAM,runtime
  
  Multiplicity: [0,-1]
  
  Position(s) to which the boundary characters apply. Should be specified, because (1) the ordering of boundary specifications is undefined, (2) multiple definitions of the same boundary characters is not possible. Starts at 1.
- characters
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  Characters that make up the boundaries. These characters must be sorted. Reserved characters: '-', '$' (to be implemented later) Escaping character: '\'