!7

!include #1008522 // Analysis Tree

p-tt {
  //load("initial");
  if (initial == null) {
    S input1 = loadSnippet(#1008462);
    S input2 = loadSnippet(#1008521);
    initial = new Data(pair(input1, input2));
    doOp(initial, new ApplyFunc([[
      func(Pair<S, S> p) { mapPair(p, f numLines) }
    ]]));
    Data data = doOp(initial, new ApplyFunc([[
      func(Pair<S, S> p) { unidiff(p.a, p.b) }
    ]]));
  }
  printTree(initial);
  save("initial");
}

Began life as a copy of #1008523