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Define Disadvantages of Top Down parsing of Backtracking
The disadvantages of top down parsing of backtracking:
(i) Semantic actions cannot be carried out while making a prediction. The actions should be delayed until the prediction is known to be a part of a successful parse.
(ii) Precise error reporting is not probable. A mismatch just triggers backtracking. A source string is identified to be erroneous just only after all predictions have failed.
Objectives 1. Login to UNIX system and logout 2. Learn features of the vi editor and to use online help (main pages). Gain experience using them to create a document
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