STACKSIZE
STACK_FRAME stack[STACKSIZE];
if (TPS(stack_ptr) < STACKSIZE) { \
if (TPS(stack_ptr) < STACKSIZE) { \
int p_stack[STACKSIZE]; /* this is the parsers stack */
int il[STACKSIZE]; /* this stack stores indentation levels */
float cstk[STACKSIZE];/* used to store case stmt indentation levels */