# This version of expr_with_spaces.tok generates an abstract-syntax tree (AST)
# from the parsed input.

Factor : @{
    Int _               ast("int")
    '(' _ Expr ')' _
}

Term : @{
    Term '*' _ Factor   ast("mul")
    Term '/' _ Factor   ast("div")
    Factor
}

Expr : @{
    Expr '+' _ Term     ast("add")
    Expr '-' _ Term     ast("sub")
    Term
}

ast => Expr             ast_print($ast)