52 Factorisation of composite insertions and deletions on a text field

See composite operations on a text field.

Definition: Let a composite operation on a text field be represented by the triple (I,D,B) where:

  • I is a set of insertion intervals, expressed in post-insertion q-coordinates
  • D is a set of deletion intervals, expressed in post-insertion q-coordinates
  • B is the string of characters corrresponding to I\D

q-coordinates of both insertions and deletions are unchanged in an RFactor - because both are expressed in post insertion coords.