Exp Exp+Exp

Exp Exp- Exp

Exp Exp*Exp

Exp Exp / Exp

Exp num

Exp ( Exp)

Grammar 2.2 -

Stat id := Exp

Stat Stat ; Stat

Stat if Exp then Stat else Stat

Stat if Exp then Stat

In Grammar 2.2 , replace the operators and / by < and :

These have the following precedence rules:

< is non-associative and binds less tightly than + but more tightly than :

: is right-associative and binds less tightly than any other operator

Write an unambiguous grammar for this modified grammar using the method shown in Sect.2.3.1.

Show the syntax tree and the fully reduced syntax tree for 2 : 3 < 4 + 5 : 6 7 using the unambiguous grammar.