Package edu.wisc.game.parser

Interface Expression

All Known Subinterfaces:

Expression.ArithmeticExpression

All Known Implementing Classes:

Expression.AdditiveExpression, Expression.BracketList, Expression.ColonExpression, Expression.ComparisonExpression, Expression.ExList, Expression.Id, Expression.MultiplicativeExpression, Expression.NegationExpression, Expression.Num, Expression.ParenList, Expression.QualifiedId, Expression.RangeExpression, Expression.SerialExpression, Expression.Star

public interface Expression

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	Expression.AdditiveExpression
static interface	Expression.ArithmeticExpression	An arithmetic expression is composed of variables, constants, and arithmetic operations; parentheses can be used for ordering operations.
static class	Expression.BracketList
static class	Expression.ColonExpression	Id:ArithmeticExpression; used in GS 3
static class	Expression.ComparisonExpression	Has exactly two operands, and the operator is '=='
static class	Expression.ExList	Can be overridden as needed
static class	Expression.Id	A variable.
static interface	Expression.Mapper	A Mapper is something that can take a variable (Expression.Id) and produce another Expression (e.g.
static class	Expression.MapTo<T>	A HashMap storing a set of values of a given type T for each key
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.PropMap	Values are String or Integer
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 "*".
static class	Expression.VarMap
static class	Expression.VarMap2	Objects in question may be Integer, String, or PropMap (ImageObject or equivalent)

Field Summary

Fields

Modifier and Type	Field	Description
static Expression.Star	STAR

Method Summary

Modifier and Type	Method	Description
Expression	map(Expression.Mapper mapper)
static Expression.BracketList	mkBracketList(Vector<Token> tokens)
static 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)
static Expression.ArithmeticExpression	mkLongestArithmeticExpression(Vector<Token> tokens)	Creates the longest ArithmeticExpression starting at the beginning of the tokens array.
static Expression.ArithmeticExpression	mkLongestE1(Vector<Token> tokens)	E1 := (E) | Id.Id | Id | Num | -Num | [E,E,...]
static Expression.ArithmeticExpression	mkLongestE2(Vector<Token> tokens)	E2 := E1 | !E2
static Expression.ArithmeticExpression	mkLongestE3(Vector<Token> tokens)	E3 := E2 | E2*E2...
static Expression.ArithmeticExpression	mkLongestE4(Vector<Token> tokens)
static Expression.ArithmeticExpression	mkLongestE5(Vector<Token> tokens)
static Expression.RangeExpression	mkRangeExpression(Vector<Token> tokens)	If the given sequence of tokens starts with a range expression, extracts it; otherwise, returns null
static HashSet<Integer>	moduloNB(Set<Integer> h0)	Translates all elements of the set to the [0..NBU-1] range, as appropriate for bucket numbers
static HashSet<Integer>	moduloNB2(Set<Object> h0)
static Integer	toInteger(Object o)
String	toSrc()

Field Details

STAR

static final Expression.Star STAR

Method Details

toInteger

static Integer toInteger(Object o)

map

Expression map(Expression.Mapper mapper) throws RuleParseException

Throws:

RuleParseException

toSrc

String toSrc()

mkCounterOrAtom

static Expression mkCounterOrAtom(Vector<Token> tokens) throws RuleParseException

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)

Throws:

RuleParseException

mkRangeExpression

static Expression.RangeExpression mkRangeExpression(Vector<Token> tokens) throws RuleParseException

If the given sequence of tokens starts with a range expression, extracts it; otherwise, returns null

Throws:

RuleParseException

mkLongestArithmeticExpression

static Expression.ArithmeticExpression mkLongestArithmeticExpression(Vector<Token> tokens) throws RuleParseException

Creates the longest ArithmeticExpression starting at the beginning of the tokens array.

        E := E5
        E5 :=  E4  |  E4==E4
        E4 :=  E3  |  E3+E3+...
        E3 :=  E2  |  E2*E2...
        E2 :=  E1  |  !E2
        E1 :=  (E)  |  Id.Id | Id  | Num |  [E4,E4,...]

Throws:

RuleParseException

mkLongestE5

static Expression.ArithmeticExpression mkLongestE5(Vector<Token> tokens) throws RuleParseException

Throws:

RuleParseException

mkLongestE4

static Expression.ArithmeticExpression mkLongestE4(Vector<Token> tokens) throws RuleParseException

Throws:

RuleParseException

mkLongestE3

static Expression.ArithmeticExpression mkLongestE3(Vector<Token> tokens) throws RuleParseException

E3 := E2 | E2*E2...

Throws:

RuleParseException

mkLongestE2

static Expression.ArithmeticExpression mkLongestE2(Vector<Token> tokens) throws RuleParseException

E2 := E1 | !E2

Throws:

RuleParseException

mkLongestE1

static Expression.ArithmeticExpression mkLongestE1(Vector<Token> tokens) throws RuleParseException

E1 := (E) | Id.Id | Id | Num | -Num | [E,E,...]

Throws:

RuleParseException

mkBracketList

static Expression.BracketList mkBracketList(Vector<Token> tokens) throws RuleParseException

Throws:

RuleParseException

moduloNB

static HashSet<Integer> moduloNB(Set<Integer> h0)

Translates all elements of the set to the [0..NBU-1] range, as appropriate for bucket numbers

moduloNB2

static HashSet<Integer> moduloNB2(Set<Object> h0)