Consider the grammar with the following rules (capital letters are nonterminals and S is the start...
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Consider the grammar with the following rules (capital letters are nonterminals and S is the start nonterminal): a S + UV U + XY V+bUVE X +dSdc Y+cXY (a) (4 marks) Determine each of the sets i. FIRST (UV) ii. FIRST (XY) iii. FOLLOW(S) iv. FOLLOW (U) v. FOLLOW (V) vi. FOLLOW (X) vii. FOLLOW(Y) For each element z belonging to a set FOLLOW (W) (WE {S, U, V, X,Y}) give a derivation starting from S where 2 occurs directly after W. If z is EOS, give a derivation starting from S where in the resulting string W occurs as the last symbol. (This is not required for the FIRST-sets.) (b) (2 marks) Does the grammar allow the use of recursive-descent parsing? Justify your answer using your answers from part (a) - please be specific and give a detailed answer. Consider the grammar with the following rules (capital letters are nonterminals and S is the start nonterminal): a S + UV U + XY V+bUVE X +dSdc Y+cXY (a) (4 marks) Determine each of the sets i. FIRST (UV) ii. FIRST (XY) iii. FOLLOW(S) iv. FOLLOW (U) v. FOLLOW (V) vi. FOLLOW (X) vii. FOLLOW(Y) For each element z belonging to a set FOLLOW (W) (WE {S, U, V, X,Y}) give a derivation starting from S where 2 occurs directly after W. If z is EOS, give a derivation starting from S where in the resulting string W occurs as the last symbol. (This is not required for the FIRST-sets.) (b) (2 marks) Does the grammar allow the use of recursive-descent parsing? Justify your answer using your answers from part (a) - please be specific and give a detailed answer.
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a i FIRST UV adc This means that the first terminal symbol in a string derived from the nonterminal ... View the full answer
Related Book For
Elementary Statistics
ISBN: 978-0538733502
11th edition
Authors: Robert R. Johnson, Patricia J. Kuby
Posted Date:
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