Design Transition Diagrams of regular definitions for the following relational operators:

relop → < | <= | <> | > | >= | =
 

[Two (2) Marks for each operator]

Predictive parsing is a special form of recursive descent parsing where we use one LOOKAHEAD token to unambiguously determine the parse operations. When a nonterminal has multiple productions, each production is implemented in a branch of a selection statement based on input look-ahead information.

Execute the example (Fig. 1) using Predictive Parser.
 

Input: array [ num  dotdot  num] of integer

            ↑

     lookahead

[1 mark for each execution step]
 

Analyse "Panic Mode" in error recovery for Syntex Analyzer.

[1 mark for each points]