Cross Lane Circular Workflow

This workflow models arrows that loop across lanes.

Full FlowZap Code

laneA { # Lane A
  n1: circle label:"Start Cross Lane Circular"
  n5: rectangle label:"Cross Lane Circular step 5"
  n9: rectangle label:"Cross Lane Circular step 9"
  n13: circle label:"End Cross Lane Circular"
  n1.handle(bottom) -> laneB.n2.handle(top)
  n5.handle(bottom) -> laneB.n6.handle(top) [label="Done"]
  n9.handle(bottom) -> laneB.n10.handle(top)
}

laneB { # Lane B
  n2: rectangle label:"Cross Lane Circular step 2"
  n6: rectangle label:"Cross Lane Circular step 6"
  n10: rectangle label:"Cross Lane Circular step 10"
  n2.handle(bottom) -> laneC.n3.handle(top) [label="Next"]
  n6.handle(bottom) -> laneC.n7.handle(top)
  n10.handle(bottom) -> laneC.n11.handle(top)
}

laneC { # Lane C
  n3: rectangle label:"Cross Lane Circular step 3"
  n7: rectangle label:"Cross Lane Circular step 7"
  n11: rectangle label:"Cross Lane Circular step 11"
  n3.handle(bottom) -> laneD.n4.handle(top)
  n7.handle(bottom) -> laneD.n8.handle(top)
  n11.handle(bottom) -> laneD.n12.handle(top) [label="Success"]
}

laneD { # Lane D
  n4: diamond label:"Cross Lane Circular step 4"
  n8: rectangle label:"Cross Lane Circular step 8"
  n12: diamond label:"Cross Lane Circular step 12"
  n12.handle(left) -> laneC.n11.handle(left) [label="Retry/Rejected"]
  n12.handle(right) -> laneA.n13.handle(bottom)
  n8.handle(right) -> laneA.n9.handle(left) [label="Processed"]
  n4.handle(right) -> laneA.n5.handle(left)
  n4.handle(left) -> laneC.n3.handle(left) [label="Retry/Rejected"]
}