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Which of the following is NOT a top down parsing technique?

  • A.shift reduce parsing
  • B.recursive descent
  • C.predictive table driven parsing
  • D.backtracking recursive descent

Answer: A

The first three all build the tree from the root down. Shift reduce parsing constructs the tree from the leaves upward and belongs to the bottom up family. The direction of construction is the defining difference between the families.

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