Consider the following statements: Statement I: LALR parser is more powerful than canonical LR Parser. Statement II: SLR parser is more powerful than LALR Which of the following is correct?
Both Statement I and Statement II false
The grammar-recognition power is SLR(1) ⊂ LALR(1) ⊂ canonical LR(1). Canonical LR retains full lookahead context, while LALR merges states and SLR uses coarser FOLLOW sets. Both claimed reverse orderings are false.
Important Questions from Parser
- Arrange the following parsers in increasing order of their power of handling grammars i.e. from the least powerful parser to the most powerful parser.
A. LR(0)
B. LR(1)
C. LALR(1)
D. LL(0)
E. SLR
Choose the correct answer from the options given below: - Which of the following statements is/are true?
Given below are two statements
Statement I : LL(1) and LR are examples of Bottom‐up parsers.
Statement II : Recursive descent parser and SLR are examples of Top‐down parsers
In light of the above statements, choose the correct answer from the options given below
Consider the grammar G with productions \(S\to A\mid B,\quad A\to a\mid c,\quad B\to b\mid c\). The nonterminals are S, A, B and the terminals are a, b, c.
Without rewriting G or resolving parsing-table conflicts by an extra rule, which statements are correct?
S1: The canonical LR(1) parsing table for G is conflict-free.
S2: The LL(1) predictive parsing table for G is conflict-free.
