Question: Extend your solution to exercise 2.21 to implement exception-based syntax error recovery, as in Example C 2.49. Data From Exercise 2.21: Build a complete recursive

Extend your solution to exercise 2.21 to implement exception-based syntax error recovery, as in Example C 2.49.

Data From Exercise 2.21:

Build a complete recursive descent parser for the calculator language. As output, have it print a trace of its matches and predictions.

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