266 		return (lfield(exprint(left->n_left), right));  in assign()
289 	np->n_left = left;  in node()
570 			np = wp->n_left;  in execute()
584 		np = np->n_left;  in execute()
602 			} else if (exprint(np->n_left) != 0) {  in execute()
657 			np = wp->n_left;  in action()
673 			(void) assign(np->n_left, np->n_right);  in action()
685 			if (np->n_left != NNULL)  in action()
686 				act = (int)exprint(np->n_left); else  in action()
694 			np = np->n_left != NNULL  in action()
695 			    ? exprreduce(np->n_left)  in action()
710 			if ((l = np->n_left)->n_type == PARM) {  in action()
721 				if ((np = l->n_left)->n_type == PARM) {  in action()
951 	register NODE *lnp = np->n_left;  in exprconcat()
1034 		return (rfield(exprint(np->n_left)));  in exprreduce()
1040 		tnp = np->n_left;  in exprreduce()
1098 		return (intnode(exprtest(np->n_left) == 0 ? (INT)1 : (INT)0));  in exprreduce()
1101 		return ((exprtest(np->n_left) != 0 &&  in exprreduce()
1105 		return ((exprtest(np->n_left) != 0 ||  in exprreduce()
1118 			f1 = (double)exprreal(np->n_left);  in exprreduce()
1126 		if (exprtest(np->n_left))  in exprreduce()
1127 			np = np->n_right->n_left; else  in exprreduce()
1152 		if ((np = np->n_left)->n_type == INDEX)  in exprreduce()
1158 		inc_oper->n_left = np;  in exprreduce()
1168 		if ((np = np->n_left)->n_type == INDEX)  in exprreduce()
1170 		inc_oper->n_left = np;  in exprreduce()
1192 		if ((np = np->n_left)->n_type == INDEX)  in exprreduce()
1194 		asn_oper->n_left = np;  in exprreduce()
1202 		return ((*np->n_left->n_function)(np->n_right));  in exprreduce()
1210 		cp = exprstring(np->n_left);  in exprreduce()
1216 		cp = exprstring(np->n_left);  in exprreduce()
1222 		return (assign(np->n_left, np->n_right));  in exprreduce()
1251 	left = exprreduce(np->n_left);  in arithmetic()
1348 	left = np->n_left;  in comparison()
1679 	if ((fnp = np->n_left) == NNULL)  in userfunc()
1702 		formlist = fnp->n_left;  in userfunc()
1775 		formlist = fnp->n_left;  in userfunc()
1805 		formlist = fnp->n_left;  in userfunc()
1843 		return (np->n_left);  in getlist()
1859 	test = exprtest(np->n_left);  in s_if()
1864 		xp = xp->n_left;  in s_if()
1881 		if (exprtest(np->n_left) == 0)  in s_while()
1910 	listp = np->n_left;  in s_for()
1954 	left = np->n_left;  in s_forin()
1958 	if ((var = left->n_left)->n_type == PARM)  in s_forin()