Flit/grammar.md at master · Meet7834/Flit · GitHub

[Prog] ==> {

```
[Stmt]*
```

}

[Stmt] ==> {

```
exit([Expr]); 
```
```
let ident = [Expr];
```
```
ident = [Expr];
```
```
print([Expr]);
```
```
[Scope]
```
```
if ([Expr]) [Scope] [IfPred]
```
```
while([Expr])[Scope]
```

}

[Scope] ==> {

```
[Stmt]*
```

}

[IfPred] ==> {

```
elif([expr])[Scope][IfPred]
```
```
else[Scope]
```
```
ε
```

}

[Expr] ==> {

```
[Term]
```
```
[BinExpr]
```

}

[BinExpr] ==> {

```
[Expr] * [Expr] & precedence = 1
```
```
[Expr] / [Expr] & precedence = 1
```
```
[Expr] + [Expr] & precedence = 0
```
```
[Expr] - [Expr] & precedence = 0
```

}

[Term] ==>{

```
int_lit
```
```
ident
```
```
([Expr])
```

}