Which of the following correctly defines the role of a parser?

21. Which of the following correctly defines the role of a parser?

A Parser reports any syntax error
A Parser recovers from a common error to continue processing of the rest of the program
A Parser creates a parse tree
All of the above

Answer

The correct answer is: D) All of the above

Explanation

A Parser is a software component which takes text as input and gives structural representation of input after checking it against the grammar of the language. Main roles of a parser are following:

To report any syntax error.
To recover from commonly occurring errors to continue parsing of the rest of the program.
To create a parse tree
To create a symbol tree
To produce intermediate representations.

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