Skip to content
Related Articles

Related Articles

Improve Article
GATE | GATE-CS-2015 (Set 3) | Question 26
  • Last Updated : 23 Feb, 2015

Among simple LR (SLR), canonical LR, and look-ahead LR (LALR), which of the following pairs identify the method that is very easy to implement and the method that is the most powerful, in that order?

(B) Canonical LR, LALR
(C) SLR, canonical LR
(D) LALR, canonical LR

Answer: (C)

Explanation: SLR parser is a type of LR parser with small parse tables and a relatively simple parser generator algorithm.

Canonical LR parser or LR(1) parser is an LR(k) parser for k=1, i.e. with a single lookahead terminal. It can handle all deterministic context-free languages.

LALR parser or Look-Ahead LR parser is a simplified version of a canonical LR parser,

Quiz of this Question

Attention reader! Don’t stop learning now. Learn all GATE CS concepts with Free Live Classes on our youtube channel.

My Personal Notes arrow_drop_up
Recommended Articles
Page :