A B C D E F G H I J L M N O P Q R S T U V W X Y

A

add(Instruction) - Method in class slogo.instruction.StrictInstructionList

Add an instruction to this list (FIFO order for execution).

addCommandButtonPanel(JPanel) - Method in class slogo.turtle.TurtleField

Addition - Class in slogo.instruction

Represents a + b, the addition of two expressions

Addition(ArithmeticBase, ArithmeticBase) - Constructor for class slogo.instruction.Addition

Represents an addition

addTurtle(String, JTurtle) - Method in class slogo.WorkspaceContext

addTurtleListener(TurtleListener) - Method in class slogo.turtle.JTurtle

Add a listener.

APOSTROPHE - Static variable in class slogo.CharConsts

ArithmeticBase - Class in slogo.expression

The "base" or factor of arithmetic instructions (a number or a variable)

ArithmeticBase() - Constructor for class slogo.expression.ArithmeticBase

ArithmeticInstruction - Class in slogo.instruction

The base class of all arithmetic instruction, the evaluate method uses the hook/template method value to return a Double value, the template method returns a double.

ArithmeticInstruction() - Constructor for class slogo.instruction.ArithmeticInstruction

Assignment - Class in slogo.instruction

An assignment instruction assigns an expression to a variable, updating the global state to reflect the assignment.

Assignment(Variable, GrammarElement) - Constructor for class slogo.instruction.Assignment

Construct an Assignment instruction from a variable and an expression, e.g., X = expression.

AssignmentParser - Class in slogo.parser

Parse an assignment statement, which looks like <id> <assignment_token, i.e., = > <expression>

AssignmentParser() - Constructor for class slogo.parser.AssignmentParser

AssignmentToken - Class in slogo.parser.token

Represents the assignment token ("=")

AssignmentToken() - Constructor for class slogo.parser.token.AssignmentToken

AT - Static variable in class slogo.CharConsts

B

BACK_SLASH - Static variable in class slogo.CharConsts

BackToken - Class in slogo.parser.token

BackToken() - Constructor for class slogo.parser.token.BackToken

BANG - Static variable in class slogo.CharConsts

BinaryExpression - Class in slogo.instruction

The base class of any binary expression, e.g., a + b, a - b, or, in future use, a < b and so on.

BinaryExpression(ArithmeticBase, ArithmeticBase) - Constructor for class slogo.instruction.BinaryExpression

construct a binary expression from two subexpressions

BK - Class in slogo.instruction

The Back instruction

BK(GrammarElement) - Constructor for class slogo.instruction.BK

BKParser - Class in slogo.parser

Parser for the BK instruction

BKParser() - Constructor for class slogo.parser.BKParser

BKToken - Class in slogo.parser.token

Represents the BK instruction

BKToken() - Constructor for class slogo.parser.token.BKToken

BufferedPanel() - Constructor for class slogo.turtle.TurtleField.BufferedPanel

C

CARET - Static variable in class slogo.CharConsts

CharConsts - Class in slogo

Symbolic names for character constants

CharConsts() - Constructor for class slogo.CharConsts

CharToken - Class in slogo.parser.token

A token represented by a single character, e.g., '*', ';', '[' and so on; the method equals compares a CharToken as equal to another CharToken encapsulating the same character.

CharToken(int) - Constructor for class slogo.parser.token.CharToken

package only constructor

CharTokenFactory - Class in slogo.parser.token

Factory for generating CharToken objects ensuring that only one of any specific CharToken object is created (enforcing CharToken singleton-ness per char value)

CharTokenFactory() - Constructor for class slogo.parser.token.CharTokenFactory

Clean - Class in slogo.instruction

The Clean instruction

Clean() - Constructor for class slogo.instruction.Clean

CleanParser - Class in slogo.parser

Parser for the BK instruction

CleanParser() - Constructor for class slogo.parser.CleanParser

CleanToken - Class in slogo.parser.token

CleanToken() - Constructor for class slogo.parser.token.CleanToken

ClearScreen - Class in slogo.instruction

The Clean instruction

ClearScreen() - Constructor for class slogo.instruction.ClearScreen

ClearScreenParser - Class in slogo.parser

Parser for the ClearScreen instruction

ClearScreenParser() - Constructor for class slogo.parser.ClearScreenParser

ClearScreenToken - Class in slogo.parser.token

ClearScreenToken() - Constructor for class slogo.parser.token.ClearScreenToken

color - Variable in class slogo.turtle.Line

colorPalette - Static variable in class slogo.turtle.JTurtle

COMMA - Static variable in class slogo.CharConsts

compareTo(Variable) - Method in class slogo.expression.Variable

Compare the variables by their names.

condition - Variable in class slogo.instruction.If

Context - Interface in slogo

Context is a hook for implementing language features that require an environment for evaluation.

createMenuBar() - Method in class slogo.turtle.TurtleField

Creates a menubar for the windows so the user can access some commands.

createOpenFileChooser() - Method in class slogo.turtle.TurtleField

createSaveFileChooser() - Method in class slogo.turtle.TurtleField

D

deleteLines() - Method in class slogo.turtle.JTurtle

Clears the lines from the list

description - Variable in exception slogo.parser.ParseException

DifferenceParser - Class in slogo.parser

DifferenceParser() - Constructor for class slogo.parser.DifferenceParser

DifferenceToken - Class in slogo.parser.token

DifferenceToken() - Constructor for class slogo.parser.token.DifferenceToken

Division - Class in slogo.instruction

Represents a / b, the division of two expressions

Division(ArithmeticBase, ArithmeticBase) - Constructor for class slogo.instruction.Division

Represents a division

DOLLAR - Static variable in class slogo.CharConsts

doSteps() - Method in class slogo.turtle.TurtleField

Make the turtle take some steps.

draw(Graphics) - Method in class slogo.turtle.JTurtle

Draw the turtle, pass in a Graphics2D object.

draw() - Method in class slogo.turtle.TurtleField.BufferedPanel

draw() - Method in class slogo.turtle.TurtleField.DrawingPanel

DrawingPanel() - Constructor for class slogo.turtle.TurtleField.DrawingPanel

E

enterCommand() - Method in class slogo.turtle.TurtleField

Makes turtle perform command

EOFToken - Class in slogo.parser.token

This represents an end-of-file token Uses the singleton pattern since there's no reason to have more than one such token.

EOFToken() - Constructor for class slogo.parser.token.EOFToken

EOLToken - Class in slogo.parser.token

This represents an end-of-line token.

EOLToken() - Constructor for class slogo.parser.token.EOLToken

EQUAL - Static variable in class slogo.CharConsts

equals(Object) - Method in class slogo.expression.Variable

Determines equality based on the Variable's name

Equals - Class in slogo.instruction

The Equal instruction

Equals(GrammarElement, GrammarElement) - Constructor for class slogo.instruction.Equals

equals(Object) - Method in class slogo.parser.token.CharToken

equals(CharToken) - Method in class slogo.parser.token.CharToken

equals(Object) - Method in class slogo.parser.token.EOFToken

equals(Object) - Method in class slogo.parser.token.EOLToken

equals(Object) - Method in class slogo.parser.token.IdentifierToken

Determines if the other object is an IdentifierToken with the same id

equals(IdentifierToken) - Method in class slogo.parser.token.IdentifierToken

equals(Object) - Method in class slogo.parser.token.NumberToken

equals(NumberToken) - Method in class slogo.parser.token.NumberToken

equals(Object) - Method in class slogo.parser.token.ReservedToken

Determines equality by if these are both ReservedTokens with the same value.

equals(Object) - Method in class slogo.parser.token.VariableToken

equals(VariableToken) - Method in class slogo.parser.token.VariableToken

EqualsParser - Class in slogo.parser

Parser for the Equal instruction

EqualsParser() - Constructor for class slogo.parser.EqualsParser

EqualsToken - Class in slogo.parser.token

The token for the Equals instruction

EqualsToken() - Constructor for class slogo.parser.token.EqualsToken

EqualToken - Class in slogo.parser.token

Represents = token

EqualToken() - Constructor for class slogo.parser.token.EqualToken

error(Token) - Method in class slogo.SLogoInterpreter

evaluate(Context) - Method in class slogo.expression.ArithmeticBase

evaluate(Context) - Method in class slogo.expression.Variable

uses the hook/template method value to return a Double

evaluate(Context) - Method in class slogo.GrammarElement

Evaluate this language construct in some context.

evaluate(Context) - Method in class slogo.instruction.ArithmeticInstruction

uses the hook/template method value to return a Double

evaluate(Context) - Method in class slogo.instruction.Assignment

Evaluate the expression that's part of this instruction and update a global map/store to record the assignment of the expression to the variable.

evaluate(Context) - Method in class slogo.instruction.BK

evaluate(Context) - Method in class slogo.instruction.Clean

evaluate(Context) - Method in class slogo.instruction.ClearScreen

evaluate(Context) - Method in class slogo.instruction.Equals

evaluate(Context) - Method in class slogo.instruction.Forward

evaluate(Context) - Method in class slogo.instruction.Greater

evaluate(Context) - Method in class slogo.instruction.Heading

evaluate(Context) - Method in class slogo.instruction.Home

evaluate(Context) - Method in class slogo.instruction.If

Evaluate this instruction in a Context.

evaluate(Context) - Method in class slogo.instruction.Instruction

evaluate(Context) - Method in class slogo.instruction.Less

evaluate(Context) - Method in class slogo.instruction.LT

evaluate(Context) - Method in class slogo.instruction.NotEquals

evaluate(Context) - Method in class slogo.instruction.PD

evaluate(Context) - Method in class slogo.instruction.Print

Evaluate the expression and println it.

evaluate(Context) - Method in class slogo.instruction.PU

evaluate(Context) - Method in class slogo.instruction.Repeat

Evaluate this instruction in a Context.

evaluate(Context) - Method in class slogo.instruction.RT

evaluate(Context) - Method in class slogo.instruction.SetPC

evaluate(Context) - Method in class slogo.instruction.SetPS

evaluate(Context) - Method in class slogo.instruction.SetX

evaluate(Context) - Method in class slogo.instruction.SetXY

evaluate(Context) - Method in class slogo.instruction.SetY

evaluate(Context) - Method in class slogo.instruction.StrictInstructionList

Evaluate this instruction in a Context, return the result of the evaluation (the result is the last instruction executed).

evaluate(Context) - Method in class slogo.instruction.Subroutine

Evaluate the expression that's part of this instruction and update a global map/store to record the assignment of the expression to the variable.

evaluate(Context) - Method in class slogo.instruction.To

Evaluate this instruction in a Context.

evaluate(Context) - Method in class slogo.instruction.Towards

evaluate(Context) - Method in class slogo.instruction.XCor

evaluate(Context) - Method in class slogo.instruction.YCor

expression - Variable in class slogo.instruction.BK

expression - Variable in class slogo.instruction.Equals

expression - Variable in class slogo.instruction.Forward

expression - Variable in class slogo.instruction.Greater

expression - Variable in class slogo.instruction.Less

expression - Variable in class slogo.instruction.LT

expression - Variable in class slogo.instruction.NotEquals

expression - Variable in class slogo.instruction.Print

expression - Variable in class slogo.instruction.RT

expression - Variable in class slogo.instruction.SetPC

expression - Variable in class slogo.instruction.SetPS

expression - Variable in class slogo.instruction.SetX

expression - Variable in class slogo.instruction.SetXY

expression - Variable in class slogo.instruction.SetY

expression - Variable in class slogo.instruction.Towards

expression2 - Variable in class slogo.instruction.Equals

expression2 - Variable in class slogo.instruction.Greater

expression2 - Variable in class slogo.instruction.Less

expression2 - Variable in class slogo.instruction.NotEquals

expression2 - Variable in class slogo.instruction.SetXY

expression2 - Variable in class slogo.instruction.Towards

F

FDParser - Class in slogo.parser

Parser for the FD instruction

FDParser() - Constructor for class slogo.parser.FDParser

FDToken - Class in slogo.parser.token

Represents the FD instruction

FDToken() - Constructor for class slogo.parser.token.FDToken

Forward - Class in slogo.instruction

The Forward instruction

Forward(GrammarElement) - Constructor for class slogo.instruction.Forward

ForwardToken - Class in slogo.parser.token

Represents the FORWARD instruction

ForwardToken() - Constructor for class slogo.parser.token.ForwardToken

G

gelementsToValue - Static variable in class slogo.GrammarElement

getBounds(Rectangle) - Method in class slogo.turtle.JTurtle

Mirrors the functionality of JComponent/Component.

getColor() - Method in class slogo.turtle.Line

getHeading() - Method in class slogo.turtle.JTurtle

Returns the naive view of heading, 0 degrees = north Changes myHeading to reflect an angle between 0 and 2pi radians.

getInstance() - Static method in class slogo.expression.VariableFactory

There should only be one VariableFactory

getInstance() - Static method in class slogo.parser.InstructionParser

getInstance() - Static method in class slogo.parser.StrictInstructionListParser

getInstance() - Static method in class slogo.parser.token.EOFToken

getInstance() - Static method in class slogo.parser.token.EOLToken

getMoveSize() - Method in class slogo.turtle.TurtleField

Returns step size as currently selected.

getNames(String) - Static method in class slogo.parser.InstructionNames

getPoint() - Method in class slogo.turtle.JTurtle

Returns the turtle's point (should be centroid)

getProperties(String) - Static method in class slogo.parser.InstructionNames

getThickness() - Method in class slogo.turtle.Line

getToken(int) - Static method in class slogo.parser.token.CharTokenFactory

getToken() - Method in class slogo.SLogoInterpreter

returns the current token, doesn't fetch a new one

getVariable(IdentifierToken) - Static method in class slogo.expression.VariableFactory

Determines the variable represented by the given id

getX1() - Method in class slogo.turtle.Line

getX2() - Method in class slogo.turtle.Line

getY1() - Method in class slogo.turtle.Line

getY2() - Method in class slogo.turtle.Line

GrammarElement - Class in slogo

All elements of the SLogo language (e.g., that make up an abstract syntax tree) should extend GrammarElement.

GrammarElement() - Constructor for class slogo.GrammarElement

Greater - Class in slogo.instruction

The Greater instruction

Greater(GrammarElement, GrammarElement) - Constructor for class slogo.instruction.Greater

GREATER_THAN - Static variable in class slogo.CharConsts

GreaterParser - Class in slogo.parser

Parser for the Greater instruction

GreaterParser() - Constructor for class slogo.parser.GreaterParser

GreaterToken - Class in slogo.parser.token

The token for the Greater instruction

GreaterToken() - Constructor for class slogo.parser.token.GreaterToken

H

Heading - Class in slogo.instruction

Heading() - Constructor for class slogo.instruction.Heading

HeadingParser - Class in slogo.parser

HeadingParser() - Constructor for class slogo.parser.HeadingParser

HeadingToken - Class in slogo.parser.token

Represents the XCOR instruction

HeadingToken() - Constructor for class slogo.parser.token.HeadingToken

HEIGHT - Static variable in class slogo.turtle.JTurtle

Home - Class in slogo.instruction

The Home instruction

Home() - Constructor for class slogo.instruction.Home

HomeParser - Class in slogo.parser

Parser for the Home instruction

HomeParser() - Constructor for class slogo.parser.HomeParser

HomeToken - Class in slogo.parser.token

Represents the Home instruction

HomeToken() - Constructor for class slogo.parser.token.HomeToken

I

id - Variable in class slogo.parser.token.IdentifierToken

IdentifierParser - Class in slogo.parser

Parse an assignment statement, which looks like <id> <assignment_token, i.e., = > <expression>

IdentifierParser() - Constructor for class slogo.parser.IdentifierParser

IdentifierToken - Class in slogo.parser.token

Represents an identifier (a variable name)

IdentifierToken() - Constructor for class slogo.parser.token.IdentifierToken

IdentifierToken(String) - Constructor for class slogo.parser.token.IdentifierToken

If - Class in slogo.instruction

If(ArithmeticBase, StrictInstructionList) - Constructor for class slogo.instruction.If

IfParser - Class in slogo.parser

IfParser() - Constructor for class slogo.parser.IfParser

IfToken - Class in slogo.parser.token

Represents the IF instruction

IfToken() - Constructor for class slogo.parser.token.IfToken

imageFileChooser() - Method in class slogo.turtle.TurtleField

ImageRenderer - Class in slogo.turtle

Displays the given image

ImageRenderer(Image) - Constructor for class slogo.turtle.ImageRenderer

init() - Method in class slogo.turtle.TurtleField

initialize(String) - Static method in class slogo.parser.InstructionNames

initialize the class by reading the instructions from a property file

Instruction - Class in slogo.instruction

Represents an instruction in the SLogo language

Instruction() - Constructor for class slogo.instruction.Instruction

instructionList - Variable in class slogo.instruction.If

instructionList - Variable in class slogo.instruction.Repeat

instructionList - Variable in class slogo.instruction.To

InstructionNames - Class in slogo.parser

Reads the file of instruction names.

InstructionNames() - Constructor for class slogo.parser.InstructionNames

instructionNames - Static variable in class slogo.parser.InstructionNames

InstructionParser - Class in slogo.parser

Instruction Parser - calls appropriate Parser for each Instruction

InstructionParser() - Constructor for class slogo.parser.InstructionParser

Create the InstructionParser--generates a map of classes to parsers

instructions - Static variable in class slogo.parser.InstructionNames

interpret(Reader, Context) - Method in class slogo.SLogoInterpreter

interprets the contents of the Reader: parsing expression(s) and prints the result of evaluating the expression(s).

interpreter - Variable in class slogo.turtle.TurtleField

iterator() - Method in class slogo.instruction.StrictInstructionList

Return an iterator for accessing all the instructions.

J

JTurtle - Class in slogo.turtle

This class is a simple MoboLogo/Slogo turtle model for illustrating rudimentary MVC for turtles and simple Graphics2D concepts

JTurtle() - Constructor for class slogo.turtle.JTurtle

Create a turtle using the default (triangle) image.

JTurtle(Image) - Constructor for class slogo.turtle.JTurtle

Creates a turtle using the given image

JTurtle(Renderer) - Constructor for class slogo.turtle.JTurtle

L

LEFT_BRACE - Static variable in class slogo.CharConsts

LEFT_BRACKET - Static variable in class slogo.CharConsts

LEFT_PAREN - Static variable in class slogo.CharConsts

LeftBracketToken - Class in slogo.parser.token

Represents a left bracket

LeftBracketToken() - Constructor for class slogo.parser.token.LeftBracketToken

LeftParenToken - Class in slogo.parser.token

Represents a left parenthesis

LeftParenToken() - Constructor for class slogo.parser.token.LeftParenToken

LeftToken - Class in slogo.parser.token

LeftToken() - Constructor for class slogo.parser.token.LeftToken

leftValue(Context) - Method in class slogo.instruction.BinaryExpression

Less - Class in slogo.instruction

The Less instruction

Less(GrammarElement, GrammarElement) - Constructor for class slogo.instruction.Less

LESS_THAN - Static variable in class slogo.CharConsts

LessParser - Class in slogo.parser

Parser for the Less instruction

LessParser() - Constructor for class slogo.parser.LessParser

LessToken - Class in slogo.parser.token

The token for the Less instruction

LessToken() - Constructor for class slogo.parser.token.LessToken

Line - Class in slogo.turtle

Represents a turtle's drawn line segment

Line(int, int, int, int, int, Color) - Constructor for class slogo.turtle.Line

lineList - Variable in class slogo.turtle.JTurtle

LT - Class in slogo.instruction

LT(GrammarElement) - Constructor for class slogo.instruction.LT

LTParser - Class in slogo.parser

LTParser() - Constructor for class slogo.parser.LTParser

LTToken - Class in slogo.parser.token

Represents the LEFT instruction

LTToken() - Constructor for class slogo.parser.token.LTToken

M

main(String[]) - Static method in class slogo.turtle.TestTowards

main(String[]) - Static method in class slogo.turtle.TurtleField

makeDashBoard(JPanel, JPanel) - Method in class slogo.turtle.TurtleField

Where turtle info is displayed

makeImage(String) - Method in class slogo.turtle.TurtleField

makeSlider(JPanel) - Method in class slogo.turtle.TurtleField

make a slider to set the turtle's heading

makeTextField() - Method in class slogo.turtle.TurtleField

match(Token) - Method in class slogo.SLogoInterpreter

try to match a token, if unsuccessful throw an exception, otherwise match succeeds, and next token is obtained and returned

MINUS - Static variable in class slogo.CharConsts

MinusParser - Class in slogo.parser

MinusParser() - Constructor for class slogo.parser.MinusParser

MinusToken - Class in slogo.parser.token

MinusToken() - Constructor for class slogo.parser.token.MinusToken

MOD - Static variable in class slogo.CharConsts

move(int) - Method in class slogo.turtle.JTurtle

Moves the turtle forward.

Multiplication - Class in slogo.instruction

Represents a x b, the multiplication of two expressions

Multiplication(ArithmeticBase, ArithmeticBase) - Constructor for class slogo.instruction.Multiplication

Represents a multiplication

myAngle - Variable in class slogo.turtle.TurtleField

myBoundingBox - Variable in class slogo.turtle.TurtleField.BufferedPanel

myContext - Variable in class slogo.turtle.TurtleField

myDisplay - Variable in class slogo.turtle.TurtleField

myExpression - Variable in class slogo.instruction.Assignment

myExpression - Variable in class slogo.instruction.UnaryExpression

myFont - Variable in class slogo.turtle.TurtleField

myHeading - Variable in class slogo.turtle.JTurtle

myImage - Variable in class slogo.turtle.ImageRenderer

myInstructionList - Variable in class slogo.instruction.StrictInstructionList

myLeft - Variable in class slogo.instruction.BinaryExpression

myListeners - Variable in class slogo.turtle.JTurtle

myName - Variable in class slogo.expression.Variable

myNextPoint - Variable in class slogo.turtle.JTurtle

myParserMap - Variable in class slogo.parser.InstructionParser

myPoint - Variable in class slogo.turtle.JTurtle

myRenderer - Variable in class slogo.turtle.JTurtle

myReservedValue - Variable in class slogo.parser.token.ReservedToken

myRight - Variable in class slogo.instruction.BinaryExpression

myShape - Variable in class slogo.turtle.PolyRenderer

myStepSize - Variable in class slogo.turtle.TurtleField

mySubroutineList - Variable in class slogo.instruction.Subroutine

mySubroutineName - Variable in class slogo.instruction.Subroutine

mySymbol - Variable in class slogo.instruction.BinaryExpression

myToken - Variable in class slogo.SLogoInterpreter

myTokenizer - Variable in class slogo.SLogoInterpreter

myTurtle - Variable in class slogo.turtle.TurtleField

myValue - Variable in class slogo.expression.Number

myValue - Variable in class slogo.parser.token.CharToken

myValue - Variable in class slogo.parser.token.NumberToken

myValue - Variable in class slogo.parser.token.VariableToken

myVariable - Variable in class slogo.instruction.Assignment

myXPoint - Variable in class slogo.turtle.TurtleField

myYPoint - Variable in class slogo.turtle.TurtleField

N

name - Variable in class slogo.instruction.To

Negation - Class in slogo.instruction

Represents unary minus, e.g., MINUS num OR -expression

Negation(ArithmeticBase) - Constructor for class slogo.instruction.Negation

Represents a negation

nextToken() - Method in class slogo.SLogoInterpreter

get the next token and store it for retrieval by getToken()

NotEquals - Class in slogo.instruction

The NotEqual instruction

NotEquals(GrammarElement, GrammarElement) - Constructor for class slogo.instruction.NotEquals

NotEqualsParser - Class in slogo.parser

Parser for the NotEquals instruction

NotEqualsParser() - Constructor for class slogo.parser.NotEqualsParser

NotEqualsToken - Class in slogo.parser.token

The token for the NotEquals instruction

NotEqualsToken() - Constructor for class slogo.parser.token.NotEqualsToken

notificationArea - Variable in class slogo.turtle.TurtleField

notifyListeners() - Method in class slogo.turtle.JTurtle

Ask all registered listeners to process this turtle

Number - Class in slogo.expression

Represents a number

Number(double) - Constructor for class slogo.expression.Number

Represents a number

NumberToken - Class in slogo.parser.token

Represents a number (using doubles).

NumberToken(double) - Constructor for class slogo.parser.token.NumberToken

Constructs a token representing value

O

openFile(String) - Method in class slogo.turtle.TurtleField

Opens file

openFileChooser - Variable in class slogo.turtle.TurtleField

openFileChooser2 - Variable in class slogo.turtle.TurtleField

openImageFile(String) - Method in class slogo.turtle.TurtleField

opens image file

openSoundFile(String) - Method in class slogo.turtle.TurtleField

Opens a Sound File

ourInstance - Static variable in class slogo.expression.VariableFactory

ourInstance - Static variable in class slogo.parser.InstructionParser

ourInstance - Static variable in class slogo.parser.StrictInstructionListParser

ourInstance - Static variable in class slogo.parser.token.EOFToken

ourInstance - Static variable in class slogo.parser.token.EOLToken

P

paint(Graphics2D) - Method in class slogo.turtle.ImageRenderer

paint(Graphics2D) - Method in class slogo.turtle.PolyRenderer

paint(Graphics2D) - Method in class slogo.turtle.Renderer

parse(SLogoInterpreter) - Method in class slogo.parser.AssignmentParser

parses an assignment statement, which looks like id = expression

parse(SLogoInterpreter) - Method in class slogo.parser.BKParser

parses a forward instruction

parse(SLogoInterpreter) - Method in class slogo.parser.CleanParser

parses a forward instruction

parse(SLogoInterpreter) - Method in class slogo.parser.ClearScreenParser

parses a ClearScreen instruction

parse(SLogoInterpreter) - Method in class slogo.parser.DifferenceParser

parses a difference instruction

parse(SLogoInterpreter) - Method in class slogo.parser.EqualsParser

parses a equal instruction

parse(SLogoInterpreter) - Method in class slogo.parser.FDParser

parses a forward instruction

parse(SLogoInterpreter) - Method in class slogo.parser.GreaterParser

parses a greater instruction

parse(SLogoInterpreter) - Method in class slogo.parser.HeadingParser

parses a left instruction

parse(SLogoInterpreter) - Method in class slogo.parser.HomeParser

parses a forward instruction

parse(SLogoInterpreter) - Method in class slogo.parser.IdentifierParser

parses an assignment statement, which looks like id = expression

parse(SLogoInterpreter) - Method in class slogo.parser.IfParser

parses an if instruction

parse(SLogoInterpreter) - Method in class slogo.parser.InstructionParser

gets the appropriate parser to parse the token

parse(SLogoInterpreter) - Method in class slogo.parser.LessParser

parses a less instruction

parse(SLogoInterpreter) - Method in class slogo.parser.LTParser

parses a left instruction

parse(SLogoInterpreter) - Method in class slogo.parser.MinusParser

parses a negation instruction

parse(SLogoInterpreter) - Method in class slogo.parser.NotEqualsParser

parses a NotEquals instruction

parse(SLogoInterpreter) - Method in interface slogo.parser.Parser

parse(SLogoInterpreter) - Method in class slogo.parser.PDParser

parses a PD instruction

parse(SLogoInterpreter) - Method in class slogo.parser.PrintParser

parses a print instruction

parse(SLogoInterpreter) - Method in class slogo.parser.ProductParser

parses a forward instruction

parse(SLogoInterpreter) - Method in class slogo.parser.PUParser

parses a PU instruction

parse(SLogoInterpreter) - Method in class slogo.parser.QuotientParser

parses a forward instruction

parse(SLogoInterpreter) - Method in class slogo.parser.RemainderParser

parses a forward instruction

parse(SLogoInterpreter) - Method in class slogo.parser.RepeatParser

Parses a REPEAT instruction

parse(SLogoInterpreter) - Method in class slogo.parser.RTParser

parses a left instruction

parse(SLogoInterpreter) - Method in class slogo.parser.SetPCParser

parses a SetPenColor instruction

parse(SLogoInterpreter) - Method in class slogo.parser.SetPSParser

parses a SetPenSize instruction

parse(SLogoInterpreter) - Method in class slogo.parser.SetXParser

parses a forward instruction

parse(SLogoInterpreter) - Method in class slogo.parser.SetXYParser

parses a forward instruction

parse(SLogoInterpreter) - Method in class slogo.parser.SetYParser

parses a forward instruction

parse(SLogoInterpreter) - Method in class slogo.parser.StrictInstructionListParser

Parses the instructions list

parse(SLogoInterpreter) - Method in class slogo.parser.SubroutineParser

parses an assignment statement, which looks like id = expression

parse(SLogoInterpreter) - Method in class slogo.parser.SumParser

parses a forward instruction

parse(StreamTokenizer) - Static method in class slogo.parser.token.TokenFactory

parse(SLogoInterpreter) - Method in class slogo.parser.ToParser

parses a to instruction

parse(SLogoInterpreter) - Method in class slogo.parser.TowardsParser

parses a forward instruction

parse(SLogoInterpreter) - Method in class slogo.parser.XCorParser

parses a left instruction

parse(SLogoInterpreter) - Method in class slogo.parser.YCorParser

parses a left instruction

ParseException - Exception in slogo.parser

A specialized exception class for parsing errors.

ParseException(String) - Constructor for exception slogo.parser.ParseException

Parser - Interface in slogo.parser

The interface that all parsers must implement

PD - Class in slogo.instruction

PD() - Constructor for class slogo.instruction.PD

PDParser - Class in slogo.parser

PDParser() - Constructor for class slogo.parser.PDParser

PDToken - Class in slogo.parser.token

Represents the PenDown instruction

PDToken() - Constructor for class slogo.parser.token.PDToken

penColor - Variable in class slogo.turtle.JTurtle

PenDownToken - Class in slogo.parser.token

PenDownToken() - Constructor for class slogo.parser.token.PenDownToken

penIsDown - Variable in class slogo.turtle.JTurtle

penThickness - Variable in class slogo.turtle.JTurtle

PenUpToken - Class in slogo.parser.token

PenUpToken() - Constructor for class slogo.parser.token.PenUpToken

PERIOD - Static variable in class slogo.CharConsts

playSound() - Static method in class slogo.turtle.TurtleField

PLUS - Static variable in class slogo.CharConsts

PolyRenderer - Class in slogo.turtle

Default renderer: draws as a triangle.

PolyRenderer() - Constructor for class slogo.turtle.PolyRenderer

Print - Class in slogo.instruction

The Print instruction prints an expression.

Print(GrammarElement) - Constructor for class slogo.instruction.Print

Represents a Print expression

PrintParser - Class in slogo.parser

The parser for the print instruction

PrintParser() - Constructor for class slogo.parser.PrintParser

PrintToken - Class in slogo.parser.token

Represents the PRINT instruction token

PrintToken() - Constructor for class slogo.parser.token.PrintToken

processTurtle(JTurtle) - Method in class slogo.turtle.TurtleField

Process a (changed) turtle, display properties and redraw.

processTurtle(JTurtle) - Method in interface slogo.turtle.TurtleListener

ProductParser - Class in slogo.parser

ProductParser() - Constructor for class slogo.parser.ProductParser

ProductToken - Class in slogo.parser.token

ProductToken() - Constructor for class slogo.parser.token.ProductToken

PU - Class in slogo.instruction

The Pen Up instruction

PU() - Constructor for class slogo.instruction.PU

PUParser - Class in slogo.parser

Parser for the Pen Up instruction

PUParser() - Constructor for class slogo.parser.PUParser

PUToken - Class in slogo.parser.token

Represents the Pen Up instruction

PUToken() - Constructor for class slogo.parser.token.PUToken

Q

QUESTION - Static variable in class slogo.CharConsts

QUOTE - Static variable in class slogo.CharConsts

QuotientParser - Class in slogo.parser

QuotientParser() - Constructor for class slogo.parser.QuotientParser

QuotientToken - Class in slogo.parser.token

QuotientToken() - Constructor for class slogo.parser.token.QuotientToken

R

Remainder - Class in slogo.instruction

Represents a + b, the addition of two expressions

Remainder(ArithmeticBase, ArithmeticBase) - Constructor for class slogo.instruction.Remainder

Represents an addition

RemainderParser - Class in slogo.parser

RemainderParser() - Constructor for class slogo.parser.RemainderParser

RemainderToken - Class in slogo.parser.token

RemainderToken() - Constructor for class slogo.parser.token.RemainderToken

Renderer - Class in slogo.turtle

Renders the graphical representation of the turtle

Renderer() - Constructor for class slogo.turtle.Renderer

Repeat - Class in slogo.instruction

An AST (abstract syntax tree) for a SLogo REPEAT instruction.

Repeat(ArithmeticBase, StrictInstructionList) - Constructor for class slogo.instruction.Repeat

Constructs a Repeat instruction that can be executed.

repeatExpression - Variable in class slogo.instruction.Repeat

RepeatParser - Class in slogo.parser

Parse a REPEAT Statement, which looks like REPEAT numOrVar [ instructionlist ]

RepeatParser() - Constructor for class slogo.parser.RepeatParser

RepeatToken - Class in slogo.parser.token

Represents a REPEAT instruction token

RepeatToken() - Constructor for class slogo.parser.token.RepeatToken

ReservedToken - Class in slogo.parser.token

Represents a reserved word

ReservedToken(String) - Constructor for class slogo.parser.token.ReservedToken

reset() - Method in class slogo.turtle.JTurtle

Reposition turtle at the origin, facing north.

RIGHT_BRACE - Static variable in class slogo.CharConsts

RIGHT_BRACKET - Static variable in class slogo.CharConsts

RIGHT_PAREN - Static variable in class slogo.CharConsts

RightBracketToken - Class in slogo.parser.token

Represents a right bracket

RightBracketToken() - Constructor for class slogo.parser.token.RightBracketToken

RightParenToken - Class in slogo.parser.token

Represents a right parenthesis

RightParenToken() - Constructor for class slogo.parser.token.RightParenToken

RightToken - Class in slogo.parser.token

RightToken() - Constructor for class slogo.parser.token.RightToken

rightValue(Context) - Method in class slogo.instruction.BinaryExpression

RT - Class in slogo.instruction

RT(GrammarElement) - Constructor for class slogo.instruction.RT

RTParser - Class in slogo.parser

RTParser() - Constructor for class slogo.parser.RTParser

RTToken - Class in slogo.parser.token

Represents the RIGHT instruction

RTToken() - Constructor for class slogo.parser.token.RTToken

S

saveFile(String) - Method in class slogo.turtle.TurtleField

Saves file

saveFileChooser - Variable in class slogo.turtle.TurtleField

SEMI_COLON - Static variable in class slogo.CharConsts

sendCommand - Variable in class slogo.turtle.TurtleField

serialVersionUID - Static variable in class slogo.turtle.TurtleField.BufferedPanel

serialVersionUID - Static variable in class slogo.turtle.TurtleField.DrawingPanel

serialVersionUID - Static variable in class slogo.turtle.TurtleField

setHeading(int) - Method in class slogo.turtle.JTurtle

Set heading in degrees, notify listeners.

setHeading(double) - Method in class slogo.turtle.JTurtle

Set heading in radians, notify listeners.

SetPC - Class in slogo.instruction

The SetPenColor instruction Sets a pen color with a corresponding number between 1 and 8 for the 8 predefined colors in the palette

SetPC(GrammarElement) - Constructor for class slogo.instruction.SetPC

SetPCParser - Class in slogo.parser

Parser for the SetPenColor instruction

SetPCParser() - Constructor for class slogo.parser.SetPCParser

SetPCToken - Class in slogo.parser.token

Represents the SetPC instruction

SetPCToken() - Constructor for class slogo.parser.token.SetPCToken

setPenColor(Color) - Method in class slogo.turtle.JTurtle

SetPenColorToken - Class in slogo.parser.token

Represents the SetPenColor instruction

SetPenColorToken() - Constructor for class slogo.parser.token.SetPenColorToken

setPenIsDown(boolean) - Method in class slogo.turtle.JTurtle

SetPenSizeToken - Class in slogo.parser.token

Represents the SetPenSize instruction

SetPenSizeToken() - Constructor for class slogo.parser.token.SetPenSizeToken

setPenThickness(int) - Method in class slogo.turtle.JTurtle

setPoint(Point2D) - Method in class slogo.turtle.JTurtle

Sets the turtles point, notifies listeners.

SetPS - Class in slogo.instruction

The SetPenSize instruction

SetPS(GrammarElement) - Constructor for class slogo.instruction.SetPS

SetPSParser - Class in slogo.parser

Parser for the SetPenSize instruction

SetPSParser() - Constructor for class slogo.parser.SetPSParser

SetPSToken - Class in slogo.parser.token

Represents the SetPS instruction

SetPSToken() - Constructor for class slogo.parser.token.SetPSToken

setTurtle(JTurtle) - Method in class slogo.turtle.TurtleField

SetX - Class in slogo.instruction

The SetX instruction

SetX(GrammarElement) - Constructor for class slogo.instruction.SetX

SetXParser - Class in slogo.parser

Parser for the SetX instruction

SetXParser() - Constructor for class slogo.parser.SetXParser

SetXToken - Class in slogo.parser.token

Represents the SETX instruction

SetXToken() - Constructor for class slogo.parser.token.SetXToken

SetXY - Class in slogo.instruction

The SetX instruction

SetXY(GrammarElement, GrammarElement) - Constructor for class slogo.instruction.SetXY

SetXYParser - Class in slogo.parser

Parser for the SetXY instruction

SetXYParser() - Constructor for class slogo.parser.SetXYParser

SetXYToken - Class in slogo.parser.token

Represents the SETXY instruction

SetXYToken() - Constructor for class slogo.parser.token.SetXYToken

SetY - Class in slogo.instruction

The SetX instruction

SetY(GrammarElement) - Constructor for class slogo.instruction.SetY

SetYParser - Class in slogo.parser

Parser for the SetX instruction

SetYParser() - Constructor for class slogo.parser.SetYParser

SetYToken - Class in slogo.parser.token

Represents the SETY instruction

SetYToken() - Constructor for class slogo.parser.token.SetYToken

showAngle(int) - Method in class slogo.turtle.TurtleField

Display (Turtle's) angle

showPoint(Point2D) - Method in class slogo.turtle.TurtleField

display Turtle's point information

SLASH - Static variable in class slogo.CharConsts

slogo - package slogo

slogo.expression - package slogo.expression

slogo.instruction - package slogo.instruction

slogo.parser - package slogo.parser

This package is responsible for parsing the language SLogo.

slogo.parser.token - package slogo.parser.token

slogo.turtle - package slogo.turtle

SLogoInterpreter - Class in slogo

Main driver for the SLogo interpreter.

SLogoInterpreter() - Constructor for class slogo.SLogoInterpreter

soundFileChooser() - Method in class slogo.turtle.TurtleField

soundName - Static variable in class slogo.turtle.TurtleField

STAR - Static variable in class slogo.CharConsts

START_X - Static variable in class slogo.turtle.JTurtle

START_Y - Static variable in class slogo.turtle.JTurtle

statements - Static variable in class slogo.parser.InstructionNames

statsPanel - Variable in class slogo.turtle.TurtleField

StrictInstructionList - Class in slogo.instruction

A list of instructions that doesn't include a function definition.

StrictInstructionList() - Constructor for class slogo.instruction.StrictInstructionList

Construct an empty list of instructions.

StrictInstructionListParser - Class in slogo.parser

The parser for lists of instructions.

StrictInstructionListParser() - Constructor for class slogo.parser.StrictInstructionListParser

Subroutine - Class in slogo.instruction

An assignment instruction assigns an expression to a variable, updating the global state to reflect the assignment.

Subroutine(String) - Constructor for class slogo.instruction.Subroutine

Construct an Assignment instruction from a variable and an expression, e.g., X = expression.

subroutineNames - Static variable in class slogo.GrammarElement

SubroutineParser - Class in slogo.parser

Parse an assignment statement, which looks like <id> <assignment_token, i.e., = > <expression>

SubroutineParser() - Constructor for class slogo.parser.SubroutineParser

Subtraction - Class in slogo.instruction

Represents a subtraction (e.g., lhs - rhs)

Subtraction(ArithmeticBase, ArithmeticBase) - Constructor for class slogo.instruction.Subtraction

Represents a subtraction

SumParser - Class in slogo.parser

Parser for the FD instruction

SumParser() - Constructor for class slogo.parser.SumParser

SumToken - Class in slogo.parser.token

Represents the SUM instruction

SumToken() - Constructor for class slogo.parser.token.SumToken

T

TestTowards - Class in slogo.turtle

TestTowards() - Constructor for class slogo.turtle.TestTowards

textEntry - Variable in class slogo.turtle.TurtleField

thickness - Variable in class slogo.turtle.Line

TILDE - Static variable in class slogo.CharConsts

To - Class in slogo.instruction

To(GrammarElement, StrictInstructionList) - Constructor for class slogo.instruction.To

toggleTurtleStats() - Method in class slogo.turtle.TurtleField

Hides turtle stats

Token - Interface in slogo.parser.token

currently this is a flag interface

TokenFactory - Class in slogo.parser.token

Parses a stream into tokens

TokenFactory() - Constructor for class slogo.parser.token.TokenFactory

tokenList - Static variable in class slogo.parser.token.CharTokenFactory

tokenNameToToken - Static variable in class slogo.parser.token.TokenFactory

ToParser - Class in slogo.parser

ToParser() - Constructor for class slogo.parser.ToParser

toString() - Method in class slogo.expression.Number

toString() - Method in class slogo.expression.Variable

toString() - Method in class slogo.instruction.Assignment

Returns a String for this instruction.

toString() - Method in class slogo.instruction.BinaryExpression

Combine left/right subexpressions, return result using symbol as the combiner/juxtaposer for the subexpressions.

toString() - Method in class slogo.instruction.BK

toString() - Method in class slogo.instruction.Clean

toString() - Method in class slogo.instruction.ClearScreen

toString() - Method in class slogo.instruction.Equals

toString() - Method in class slogo.instruction.Forward

toString() - Method in class slogo.instruction.Greater

toString() - Method in class slogo.instruction.Heading

toString() - Method in class slogo.instruction.Home

toString() - Method in class slogo.instruction.If

toString() - Method in class slogo.instruction.Less

toString() - Method in class slogo.instruction.LT

toString() - Method in class slogo.instruction.Negation

Format -expression

toString() - Method in class slogo.instruction.NotEquals

toString() - Method in class slogo.instruction.PD

toString() - Method in class slogo.instruction.Print

toString() - Method in class slogo.instruction.PU

toString() - Method in class slogo.instruction.Repeat

toString() - Method in class slogo.instruction.RT

toString() - Method in class slogo.instruction.SetPC

toString() - Method in class slogo.instruction.SetPS

toString() - Method in class slogo.instruction.SetX

toString() - Method in class slogo.instruction.SetXY

toString() - Method in class slogo.instruction.SetY

toString() - Method in class slogo.instruction.StrictInstructionList

Return a string indicating the # of instructions in the list

toString() - Method in class slogo.instruction.Subroutine

Returns a String for this instruction.

toString() - Method in class slogo.instruction.To

toString() - Method in class slogo.instruction.Towards

toString() - Method in class slogo.instruction.UnaryExpression

toString() - Method in class slogo.instruction.XCor

toString() - Method in class slogo.instruction.YCor

toString() - Method in exception slogo.parser.ParseException

toString() - Method in class slogo.parser.token.CharToken

toString() - Method in class slogo.parser.token.EOFToken

toString() - Method in class slogo.parser.token.EOLToken

toString() - Method in class slogo.parser.token.IdentifierToken

toString() - Method in class slogo.parser.token.NumberToken

toString() - Method in class slogo.parser.token.ReservedToken

toString() - Method in class slogo.parser.token.VariableToken

ToToken - Class in slogo.parser.token

Represents the TO instruction

ToToken() - Constructor for class slogo.parser.token.ToToken

Towards - Class in slogo.instruction

The Towards instruction

Towards(GrammarElement, GrammarElement) - Constructor for class slogo.instruction.Towards

TowardsParser - Class in slogo.parser

Parser for the SetXY instruction

TowardsParser() - Constructor for class slogo.parser.TowardsParser

TowardsToken - Class in slogo.parser.token

Represents the FORWARD instruction

TowardsToken() - Constructor for class slogo.parser.token.TowardsToken

trueHeading() - Method in class slogo.turtle.JTurtle

Return the real/true heading of the turtle.

TurtleField - Class in slogo.turtle

Rudimentary view showing turtles and MVC.

TurtleField(String) - Constructor for class slogo.turtle.TurtleField

Creates a view of the turtle, given by the name of the turtle image

TurtleField() - Constructor for class slogo.turtle.TurtleField

Creates a view of the turtle, using the default turtle representation

TurtleField.BufferedPanel - Class in slogo.turtle

Overkill with double buffering on by default, but shows how to do it.

TurtleField.DrawingPanel - Class in slogo.turtle

turtleImgLocName - Static variable in class slogo.turtle.TurtleField

TurtleListener - Interface in slogo.turtle

A simple listener interface that listens to changes to the turtle and processes them, as appropriate.

turtleMap - Variable in class slogo.WorkspaceContext

twoPi - Static variable in class slogo.turtle.JTurtle

U

UnaryExpression - Class in slogo.instruction

Represents a unary expression

UnaryExpression(ArithmeticBase) - Constructor for class slogo.instruction.UnaryExpression

Represents a unary expression

UNDER_SCORE - Static variable in class slogo.CharConsts

V

value(String) - Method in interface slogo.Context

If there are local/global variables, a variable might have a different value depending on the Context, so Contexts should support determining the value of an identifier.

value(Context) - Method in class slogo.expression.ArithmeticBase

value(Context) - Method in class slogo.expression.Number

value(Context) - Method in class slogo.expression.Variable

value(Context) - Method in class slogo.instruction.Addition

value(Context) - Method in class slogo.instruction.ArithmeticInstruction

value(Context) - Method in class slogo.instruction.Division

value(Context) - Method in class slogo.instruction.Multiplication

value(Context) - Method in class slogo.instruction.Negation

value(Context) - Method in class slogo.instruction.Remainder

value(Context) - Method in class slogo.instruction.Subtraction

value(Context) - Method in class slogo.instruction.UnaryExpression

value() - Method in class slogo.parser.token.CharToken

value() - Method in class slogo.parser.token.IdentifierToken

value() - Method in class slogo.parser.token.NumberToken

value() - Method in class slogo.parser.token.ReservedToken

value() - Method in class slogo.parser.token.VariableToken

value(String) - Method in class slogo.WorkspaceContext

Variable - Class in slogo.expression

A variable stores a value and can be used in an expression.

Variable(String) - Constructor for class slogo.expression.Variable

Represents a variable

VariableFactory - Class in slogo.expression

Clients can use this class to obtain a unique variable per identifier (avoiding a proliferation of objects)

VariableFactory() - Constructor for class slogo.expression.VariableFactory

VariableToken - Class in slogo.parser.token

Represents a variable

VariableToken(String) - Constructor for class slogo.parser.token.VariableToken

varnameToVariable - Static variable in class slogo.expression.VariableFactory

W

WIDTH - Static variable in class slogo.turtle.JTurtle

WorkspaceContext - Class in slogo

The implemented context for a workspace

WorkspaceContext() - Constructor for class slogo.WorkspaceContext

X

x1 - Variable in class slogo.turtle.Line

x2 - Variable in class slogo.turtle.Line

XCor - Class in slogo.instruction

XCor() - Constructor for class slogo.instruction.XCor

XCorParser - Class in slogo.parser

XCorParser() - Constructor for class slogo.parser.XCorParser

XCorToken - Class in slogo.parser.token

Represents the XCOR instruction

XCorToken() - Constructor for class slogo.parser.token.XCorToken

Y

y1 - Variable in class slogo.turtle.Line

y2 - Variable in class slogo.turtle.Line

YCor - Class in slogo.instruction

YCor() - Constructor for class slogo.instruction.YCor

YCorParser - Class in slogo.parser

YCorParser() - Constructor for class slogo.parser.YCorParser

YCorToken - Class in slogo.parser.token

Represents the YCOR instruction

YCorToken() - Constructor for class slogo.parser.token.YCorToken

A B C D E F G H I J L M N O P Q R S T U V W X Y