skaller writes:
 > > 
 > > Ocamllex is definitely the easiest.
 > 
 > however by itself this will not supported nested
 > comments which Ocaml allows .. :)

What's wrong with this way of handling nested comments with ocamllex:

======================================================================

| "(*" { comment lexbuf; ... }
...

and comment = parse
| "(*" { comment lexbuf; comment lexbuf }
| "*)" { () }
| _    { comment lexbuf }

======================================================================

(I may have misunderstood the issue here, since I didn't follow this
thread in details...)

-- 
Jean-Christophe