Youaregivenacopyof lex.hfromProgrammingAssignment2,andafilecalled tokensListing.cppas a driver program.

DO NOT CHANGE tokensListing.cpp

Your implementation should include the followingin another file, called io.cpp:

Creating a static map container that defines the list of tokens and their associated string. The declaration is:static map tokenPrint = {........};

Writingcode to implement the operator<< overloaded methodfor LexItem.

Use the given driverprogram in tokensListing.cppfor testingyour implementation.For example, the output of the testing program displays the following:

PRINT Line #: 3

IF Line #: 3

BEGIN Line #: 3

END Line #: 3

IDENT (area) Line #: 3

ICONST (579) Line #: 3

SCONST (hello NJIT) Line #: 3

RCONST (5.79) Line #: 3

PLUS Line #: 3

MINUS Line #: 3

MULT Line #: 3

DIV Line #: 3

EQ, Line #: 3

LPAREN Line #: 3

RPAREN Line #: 3

SCOMA Line #: 3

COMA Line #: 3

ERR (ERR) Line #: 3