compiler design, Syntax directed tree

Question

Select the correct one from the below given options.

1. The parser’s output is abstract syntax tree, which represents the grammatical structure of the parse input.   2. Parse tree is condensed form of Abstract Syntax tree.   3. In abstract syntax tree the operators can appear as leaves while keywords cannot appear as leaves.   4.All of the above are true

 

Comments

is it a?

Answer 1

It will be a

Comments

I think parser gives concrete syntax tree not the abstract syntax tree.

Answer 2

1. True

2 .false abstract syntax tree is a condensed form of parse tree

3. False