Question: Extend your solution to exercise 2.21 to implement Wirths syntax error recovery mechanism (a) with global FOLLOW sets, as in Example C 2.45. (b) with
Extend your solution to exercise 2.21 to implement Wirth’s syntax error recovery mechanism (a) with global FOLLOW sets, as in Example C 2.45. (b) with local FOLLOW sets, as in Example C 2.47 (c) with avoidance of “starter symbol” deletion, as in Example C 2.48.
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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