if (result != TCL_OK) {
	    return result;
	}
	if (listLen == 0) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "bad operation list \"\": must be one or more of"
		    " enter, leave, enterstep, or leavestep", -1));
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "TRACE", "NOOPS",
	    TclSetErrorCode(interp, "TCL", "OPERATION", "TRACE", "NOOPS");
		    (char *)NULL);
	    return TCL_ERROR;
	}
	result = TclListObjGetElements(interp, objv[4], &listLen, &elemPtrs);
	if (result != TCL_OK) {
	    return result;
	}
	for (i = 0; i < listLen; i++) {

	if (result != TCL_OK) {
	    return result;
	}
	if (listLen == 0) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "bad operation list \"\": must be one or more of"
		    " delete or rename", -1));
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "TRACE", "NOOPS",
	    TclSetErrorCode(interp, "TCL", "OPERATION", "TRACE", "NOOPS");
		    (char *)NULL);
	    return TCL_ERROR;
	}
	result = TclListObjGetElements(interp, objv[4], &listLen, &elemPtrs);
	if (result != TCL_OK) {
	    return result;
	}
	for (i = 0; i < listLen; i++) {

	if (result != TCL_OK) {
	    return result;
	}
	if (listLen == 0) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "bad operation list \"\": must be one or more of"
		    " array, read, unset, or write", -1));
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "TRACE", "NOOPS",
	    TclSetErrorCode(interp, "TCL", "OPERATION", "TRACE", "NOOPS");
		    (char *)NULL);
	    return TCL_ERROR;
	}
	result = TclListObjGetElements(interp, objv[4], &listLen, &elemPtrs);
	if (result != TCL_OK) {
	    return result;
	}
	for (i = 0; i < listLen ; i++) {