You are given a copy of lex.h from Programming Assignment 2, and a file called tokensListing.cpp as a driver program.

DO NOT CHANGE tokensListing.cpp

Your implementation should include the following in 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 = {........};

• Writing code to implement the operator<< overloaded method for LexItem.

Use the given driver program in tokensListing.cpp for testing your implementation.