4: type = KW_INT     token = "int"
  4: type = KW_CHAR    token = "char"
  4: type = KW_ELSE    token = "else"
  4: type = KW_IF      token = "if"
  4: type = KW_RETURN  token = "return"
  4: type = KW_WHILE   token = "while"
  5: type = SEMICOLON  token = ";"
  5: type = COMMA      token = ","
  5: type = LPAR       token = "("
  5: type = RPAR       token = ")"
  5: type = LBRACE     token = "{"
  5: type = RBRACE     token = "}"
  5: type = LBRACK     token = "["
  5: type = RBRACK     token = "]"
  6: type = MINUS      token = "-"
  6: type = PLUS       token = "+"
  6: type = STAR       token = "*"
  6: type = SLASH      token = "/"
  6: type = PERCENT    token = "%"
  6: type = AND        token = "&"
  6: type = EQ         token = "="
  6: type = EQEQ       token = "=="
  6: type = NE         token = "!="
  6: type = GT         token = ">"
  6: type = GE         token = ">="
  6: type = LT         token = "<"
  6: type = LE         token = "<="
  7: type = INT        token = "1"  val = 1
  7: type = INT        token = "2"  val = 2
  7: type = INT        token = "12"  val = 12
  7: type = INT        token = "123"  val = 123
  7: type = INT        token = "0123456"  val = 123456
  7: type = INT        token = "00123456789"  val = 123456789
  8: type = ID         token = "a"
  8: type = ID         token = "b"
  8: type = ID         token = "c"
  8: type = ID         token = "abc"
  8: type = ID         token = "ABC"
  8: type = ID         token = "main"
  8: type = ID         token = "x123"
  8: type = ID         token = "p000Ax3"
  9: type = ID         token = "_program"
  9: type = ID         token = "u_p0x_A0x_774"
 10: type = CHAR       token = "'a'"  val = 97
 10: type = CHAR       token = "'b'"  val = 98
 10: type = CHAR       token = "'0'"  val = 48
 10: type = CHAR       token = "'\t'"  val = 9
 10: type = CHAR       token = "'\n'"  val = 10
 10: type = CHAR       token = "'\''"  val = 39
 10: type = CHAR       token = "'\\'"  val = 92