class Diff::LCS::DefaultCallbacks

Diff::LCS.LCS(seq1, seq2, Diff::LCS::DefaultCallbacks)
Note that this is intended to be called as is, e.g.,
would be useful.
#finished_b are not implemented – I haven’t yet figured out where they
which only returns the event itself. Note that #finished_a and
This callback object implements the default set of callback events,

def change(event)

Called when both the old and new values have changed. 
def change(event)
  event
end

def discard_a(event)

Called when the old value is discarded in favour of the new value. 
def discard_a(event)
  event
end

def discard_b(event)

Called when the new value is discarded in favour of the old value. 
def discard_b(event)
  event
end

def match(event)

Called when two items match. 
def match(event)
  event
end