Expression
s
:
Var
iable
& Parentheses
18
/69
F
i
Variable
:
Parentheses:
F
®
i
{
F
.s
:=
i.value
}
F
(
)
E
i.value
F.s
E.s
F.s
E
®
(
F
)
{
F
.s
:=
E.s
}