## Uses of Interface
edu.wisc.game.parser.Expression

- Packages that use Expression
  Package | Description
  --- | ---
  edu.wisc.game.parser | Tools for parsing rule set descriptions

- - ### Uses of Expression in edu.wisc.game.parser

    Subinterfaces of Expression in edu.wisc.game.parser
    Modifier and Type | Interface | Description
    --- | --- | ---
    `static interface` | `Expression.ArithmeticExpression` | An arithmetic expression is composed of variables, constants, and arithmetic operations; parentheses can be used for ordering operations.

    Classes in edu.wisc.game.parser that implement Expression
    Modifier and Type | Class | Description
    --- | --- | ---
    `static class` | `Expression.AdditiveExpression` |
    `static class` | `Expression.BracketList` |
    `static class` | `Expression.ColonExpression` | Id:ArithmeticExpression; used in GS 3
    `static class` | `Expression.EqualityExpression` | Has exactly two operands, and the operator is '=='
    `static class` | `Expression.ExList` | Can be overridden as needed
    `static class` | `Expression.Id` | A variable.
    `static class` | `Expression.MultiplicativeExpression` |
    `static class` | `Expression.NegationExpression` | !E evaluates to [1] if E is an empty set, or to [] otherwise
    `static class` | `Expression.Num` | A numeric constant
    `static class` | `Expression.ParenList` |
    `static class` | `Expression.QualifiedId` | A.B
    `static class` | `Expression.RangeExpression` | [Num..Num]
    `static class` | `Expression.SerialExpression` | Additive or multiplicative
    `static class` | `Expression.Star` | A Star expression is simply "*".

    Fields in edu.wisc.game.parser declared as Expression
    Modifier and Type | Field | Description
    --- | --- | ---
    `Expression` | Expression.ColonExpression.`arex` |

    Methods in edu.wisc.game.parser that return Expression
    Modifier and Type | Method | Description
    --- | --- | ---
    `static Expression` | Expression.`mkCounterOrAtom​(Vector<Token> tokens)` | Extracts one of the sections of a rule line: either the leading counter (int or star), or one of the atoms (paren lists that may include arithmetic expressions or stars)