Question

Left corner parsing methof uses which of the following?

(a) Top down parser

(b) Bottom up parser

(c) TOP down and Bottom up parser

(d) None of the mentioned

The question was asked in an interview for job.

This intriguing question comes from Applications in portion Context Free Grammars and Languages of Automata Theory

Answer 1

Right answer is (c) TOP down and Bottom up parser

The best I can explain: It is a hybrid method which works bottom up along the left edges of each subtree, and top down on the rest of the parse tree.