write a C++ program that reads in a text file and reads each character or lexemes and states what token it is and writes to another file

for example:

while (fahr < upper) a = 23.00 whileend

Output:

token lexeme

--------------------------------

keyword while

separator (

identifier fahr

operator <

identifier upper

separator )

identifier a

operator =

real 23.00

keyword whileend

the program aslo reads in comments but does not add to the list. characters that are commented out or pseudocode is not counted