Question

Which of the following parser is most powerful?

• A. Predictive Parser
• B. SLR Parser
• C. CLR Parser
• D. LALR Parser

Hint:

Power order: \[ \text{Predictive} < \text{SLR} < \text{LALR} < \text{CLR} \]

Answer 1

The Correct Option is C

Concept: Parser power comparison: \[ \text{Predictive} < \text{SLR} < \text{LALR} < \text{CLR} \]

Step 1: Understand CLR.
CLR stands for Canonical LR Parser. It recognizes the largest class of LR grammars.

Step 2: Compare with others.
SLR and LALR are simplified versions of LR parsing. CLR has the greatest parsing power.

Step 3: Write answer.
Hence \[ \boxed{\text{CLR Parser}} \] is correct.