Question
(i) P-> QR
(ii) P -> Q s R
(iii) P -> ε
(iv) P ->Q t
a.
(i) only
b.
(i) and (iii) only
c.
(ii) and (iii) only
d.
(iii) and (iv) only
Posted under Compiler Design
Engage with the Community - Add Your Comment
Confused About the Answer? Ask for Details Here.
Know the Explanation? Add it Here.
Q. Which grammar violate rules of an operator grammar? (i) P-> QR (ii) P -> Q s R (iii) P -> ε (iv) P ->Q t
Similar Questions
Discover Related MCQs
Q. Consider the grammar rule
E -> E1 − E2 for arithmetic expressions.
If E1 and E2 do not have any common sub expression, in order to get the shortest possible code
View solution
Q. The grammar
A ->AA |( A)| ε
is not suitable for predictive-parsing because the grammar is
View solution
Q. Consider the grammar
E ->E + n | E # n | n
For a sentence n + n, form of the reduction are
View solution
Q. S -> (S)| a
Let the number of states in SLR(1), LR(1) and LALR(1) parsers for the grammar n1 n2 and n3 respectively.
View solution
Q. Consider line 3:
Int main()
{ int 1,N;
Fro (I,1 N,1);
}
Identify the compiler’s response about this line while creating the object-module
View solution
Q. Which one of the following is true about the action of yacc for the given grammar?
View solution
Q. What precedence and associativity properties does the generated parser realize?
View solution
Q. Consider the following grammar.
S > S * E
S > E
E > F + E
E > F
F > id
Consider the following LR(0) items corresponding to the grammar above
(i) S -> S * .E
(ii) E -> F . + E
(iii) E -> F + .E
Given the items above, which two of them will appear in the same set in the canonical sets-of-items for the grammar?
View solution
Q. Consider the following grammar
S > FR
R > * S | ε
F > id
In the predictive parser table, M , of the grammar the entries M [ S, id] and M [ R,$] respectively
View solution
Q. Consider the following translation scheme.
S > ER
R > * E{print{’ * ’);
R | f
E > F + E{print(’ + ’); | F F > (S) | id{print(id.value);}
Here id is a taken that represents an integer and id, value represents the corresponding integer value. For an input ‘2 * 3 + 4’, this translation scheme prints
View solution
Q. Consider the following C code segment.
for if i # i } } }
Which one to the following false?
View solution
Q. E -> number Eval number val
E E .val E .VAL E .val
E # E E .val E .VAL E .val
;
The above grammar and the semantic rules are fed to a yacc tool (which is an LALR (1) parser generator) for parsing and evaluating arithmetic expressions. Which one of the following is true about the action of yacc for the given grammar?
View solution
Q. E -> number Eval number val
E E .val E .VAL E .val
E # E E .val E .VAL E .val
;
Assume the conflicts part (a) of this question are resolved and an LALR (1) parser is generated for parsing arithmetic expressions as per the given grammar.
Consider an expression 3 # 2 + 1. What precedence and associativity properties does the generated parser realize?
View solution
Q. Consider the following grammar.
S -> S * E
S -> E
E -> F + E
E -> F
F -> id
Consider the following LR (0) items corresponding to the grammar above.
(i) S -> S * .E
(ii) E -> F. + E
(iii) E “F + .E
Given the items above, which two of them will appear in the same set in the canonical sets-of-items for the grammar?
View solution
Q. Consider the following grammar
S -> FR
R -> * S | ε
F -> id
In the predictive parser table, M, of the grammar the entries M [S, id] and M [R, $] respectively
View solution
Q. Consider the following translation scheme.
S -> ER
R -> * E{print{’ * ’);
R | f
E -> F + E{print(’ + ’); | F
F -> (S) | id{print(id.value);}
Here id is a taken that represents an integer and id. value represents the corresponding integer value. For an input ‘2 * 3 + 4’, this translation scheme prints
View solution
Q. Consider the following C code segment.
for for if i # i } } }
Which one to the following false?
View solution
Q. Which one of the following grammars generates the language
L = (a i b i | i ! j}?
View solution
Q. In the correct grammar above, what is the length of the derivation (number of steps starting from S to generate the string a l b m with l ! m?
View solution
Q. Consider the grammar with non-terminals
N = {S , C , S}, terminals T = {a, b , i , t, e}, with S as the start symbol, and the following of rules
S -> iCtSS1 | a
S1 -> eS | ε
C -> b
The grammar is NOTLL(1) because:
View solution
Suggested Topics
Are you eager to expand your knowledge beyond Compiler Design? We've curated a selection of related categories that you might find intriguing.
Click on the categories below to discover a wealth of MCQs and enrich your understanding of Computer Science. Happy exploring!