135 	execute(a);  in run()
139 Cell *execute(Node *u)	/* execute a node of the parse tree */  in execute()  function
185 		x = execute(a[0]);  in program()
194 			x = execute(a[1]);  in program()
203 		x = execute(a[2]);  in program()
235 	fcn = execute(a[0]);	/* the function itself */  in call()
255 		y = execute(x);  in call()
286 	y = execute((Node *)(fcn->sval));	/* execute body */  in call()
358 			y = execute(a[0]);  in jump()
365 			y = execute(a[0]);  in jump()
410 		x = execute(a[2]);		/* filename */  in awkgetline()
423 			x = execute(a[0]);  in awkgetline()
438 			x = execute(a[0]);  in awkgetline()
467 	x = execute(a[0]);	/* Cell* for symbol table */  in array()
470 		y = execute(np);	/* subscript */  in array()
502 	x = execute(a[0]);	/* Cell* for symbol table */  in awkdelete()
517 			y = execute(np);	/* subscript */  in awkdelete()
542 	ap = execute(a[1]);	/* array name */  in intest()
556 		x = execute(p);	/* expr */  in intest()
582 	x = execute(a[1]);	/* a[1] = target text */  in matchop()
587 		y = execute(a[2]);	/* a[2] = regular expr */  in matchop()
619 	x = execute(a[0]);  in boolop()
625 		y = execute(a[1]);  in boolop()
632 		y = execute(a[1]);  in boolop()
652 	x = execute(a[0]);  in relop()
653 	y = execute(a[1]);  in relop()
718 	x = execute(a[0]);  in indirect()
740 	x = execute(a[0]);  in substr()
741 	y = execute(a[1]);  in substr()
743 		z = execute(a[2]);  in substr()
787 	x = execute(a[0]);  in sindex()
789 	y = execute(a[1]);  in sindex()
847 				x = execute(a);  in format()
889 		x = execute(a);  in format()
938 		execute(a);  in format()
954 	x = execute(a[0]);  in awksprintf()
977 	x = execute(a[0]);  in awkprintf()
1004 	x = execute(a[0]);  in arith()
1008 		y = execute(a[1]);  in arith()
1069 	x = execute(a[0]);  in incrdecr()
1089 	y = execute(a[1]);  in assign()
1090 	x = execute(a[0]);  in assign()
1152 	x = execute(a[0]);  in cat()
1153 	y = execute(a[1]);  in cat()
1177 		x = execute(a[1]);  in pastat()
1179 		x = execute(a[0]);  in pastat()
1182 			x = execute(a[1]);  in pastat()
1195 		x = execute(a[0]);  in dopa2()
1201 		x = execute(a[1]);  in dopa2()
1205 		x = execute(a[2]);  in dopa2()
1218 	y = execute(a[0]);	/* source string */  in split()
1224 		x = execute(a[2]);  in split()
1231 	ap = execute(a[1]);	/* array name */  in split()
1345 	x = execute(a[0]);  in condexpr()
1348 		x = execute(a[1]);  in condexpr()
1351 		x = execute(a[2]);  in condexpr()
1360 	x = execute(a[0]);  in ifstat()
1363 		x = execute(a[1]);  in ifstat()
1366 		x = execute(a[2]);  in ifstat()
1376 		x = execute(a[0]);  in whilestat()
1380 		x = execute(a[1]);  in whilestat()
1396 		x = execute(a[0]);  in dostat()
1402 		x = execute(a[1]);  in dostat()
1413 	x = execute(a[0]);  in forstat()
1417 			x = execute(a[1]);  in forstat()
1421 		x = execute(a[3]);  in forstat()
1427 		x = execute(a[2]);  in forstat()
1438 	vp = execute(a[0]);  in instat()
1439 	arrayp = execute(a[1]);  in instat()
1449 			x = execute(a[2]);  in instat()
1478 	x = execute(a[1]);  in bltin()
1504 			y = execute(a[1]->nnext);  in bltin()
1571 			execute(nextarg);  in bltin()
1588 		y = execute(x);  in printstat()
1618 	x = execute(b);  in redirect()
1722 	x = execute(a[0]);  in closefile()
1786 	x = execute(a[3]);	/* target string */  in sub()
1791 		y = execute(a[1]);  in sub()
1795 	y = execute(a[2]);	/* replacement string */  in sub()
1849 	x = execute(a[3]);	/* target string */  in gsub()
1854 		y = execute(a[1]);  in gsub()
1858 	y = execute(a[2]);	/* replacement string */  in gsub()