cql2

type CQL2 struct {
	Expressions []*Expression `@@`
}

type CharacterExpression struct {
}

type Expression struct {
	Lhs *Predicate `@@`
	Op  string     `( ( @Operator )? | ( @"AND" )? | ( @"OR" )? )!`
	Rhs *Predicate `@@`
}

type IsLikePredicate struct {
	Lhs *CharacterExpression `@Ident`
	Not bool                 `"NOT"`
	Rhs *PatternExpression   `"LIKE" @@`
}

type PatternExpression struct {
}

type Predicate struct {
	Lhs string `@Ident`
	Op  string `@Operator`
	Rhs *Value `@@`
}

type Value struct {
	Number        *float64 `  @Number`
	String        *string  `| @String`
	Identifier    *string  `| @Ident`
	Bool          *string  `| ( @"true" | "false" )`
	Nil           bool     `| @"nil"`
	SubExpression *CQL2    `| "(" @@ ")" `
}