Please can i get help on commenting this c++ basic compiler code

[kofi code]

enum {Ident_max = 16};
 typedef char Ident[Ident_max+1];
 typedef enum {
     null, times, plus, rparen, lparen, number, writesym, eofsym
 } Symbol;
 class Scanner {
 public:
     bool init(const char fn[]);
     Symbol getsym();
     int getval() { return val; }
     const char *getid() { return id; }..... ETC FULL CODE IN TEXT FILE

[dev7060]

What is the question?

[kofi code]

Frankly i need help with creating a basic compiler front end—that is, a scanner and a parser which takes as input a program written in ILOC.

[dev7060]

Frankly i need help with creating a basic compiler front end

That's what being asked. What kind of help is needed?

[kofi code]

how to code a basic compiler, scanner and parser which takes input written in ILOC

[kofi code]

Please can you help me with that ?