A B C D E G I L M N O P R S T U V

A

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

Addition - class elan.expression.Addition.

Addition(Expression, Expression) - Constructor for class elan.expression.Addition

Assignment - class elan.instruction.Assignment.

Assignment(Variable, Expression) - Constructor for class elan.instruction.Assignment

AssignmentParser - class elan.parser.AssignmentParser.

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

B

BinaryExpression - class elan.expression.BinaryExpression.

BinaryExpression(Expression, Expression) - Constructor for class elan.expression.BinaryExpression

C

compareTo(Object) - Method in class elan.expression.Variable

D

Division - class elan.expression.Division.

Division(Expression, Expression) - Constructor for class elan.expression.Division

E

elan.expression - package elan.expression

elan.instruction - package elan.instruction

elan.parser - package elan.parser

ElanParser - class elan.parser.ElanParser.

Illustrates the java.io.StreamTokenizer class and how it can be used to parse tokens for a toy example programming language (elan) For this example only expressions are parsed, but lots of infrastructure is in place for parsing a more complete language

ElanParser() - Constructor for class elan.parser.ElanParser

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

error(Token) - Method in class elan.parser.ElanParser

evaluate(Context) - Method in class elan.expression.Expression

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

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

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

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

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

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

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

Expression - class elan.expression.Expression.

Expression() - Constructor for class elan.expression.Expression

ExpressionParser - class elan.parser.ExpressionParser.

This is a recursive descent parser for parsing expressions using the standard grammar for expressions

G

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

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

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

getInstance() - Static method in class elan.parser.ExpressionParser

getNames() - Static method in class elan.parser.InstructionNames

getToken() - Method in class elan.parser.ElanParser

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

I

IdentifierParser - class elan.parser.IdentifierParser.

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

If - class elan.instruction.If.

If(Expression, StrictInstructionList) - Constructor for class elan.instruction.If

Instruction - class elan.instruction.Instruction.

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

InstructionNames - class elan.parser.InstructionNames.

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

InstructionParser - class elan.parser.InstructionParser.

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

L

leftValue(Context) - Method in class elan.expression.BinaryExpression

M

main(String[]) - Static method in class elan.parser.ElanParser

match(Token) - Method in class elan.parser.ElanParser

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

Multiplication - class elan.expression.Multiplication.

Multiplication(Expression, Expression) - Constructor for class elan.expression.Multiplication

myExpression - Variable in class elan.expression.UnaryExpression

myExpression - Variable in class elan.instruction.Print

myExpression - Variable in class elan.instruction.Assignment

myExpression - Variable in class elan.instruction.If

myExpression - Variable in class elan.instruction.Repeat

myLeft - Variable in class elan.expression.BinaryExpression

myList - Variable in class elan.instruction.StrictInstructionList

myList - Variable in class elan.instruction.If

myList - Variable in class elan.instruction.Repeat

myName - Variable in class elan.expression.Variable

myRight - Variable in class elan.expression.BinaryExpression

myString - Variable in class elan.parser.ParseException

mySymbol - Variable in class elan.expression.BinaryExpression

myToken - Variable in class elan.parser.ElanParser

myTokenizer - Variable in class elan.parser.ElanParser

myValue - Variable in class elan.expression.Number

myVariable - Variable in class elan.instruction.Assignment

N

Negation - class elan.expression.Negation.

Negation(Expression) - Constructor for class elan.expression.Negation

nextToken() - Method in class elan.parser.ElanParser

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

Number - class elan.expression.Number.

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

O

ourInstance - Static variable in class elan.parser.StrictInstructionListParser

P

parse(ElanParser) - Method in class elan.parser.StrictInstructionListParser

parse(ElanParser) - Method in class elan.parser.RepeatParser

parse(ElanParser) - Method in class elan.parser.PrintParser

parse(ElanParser) - Method in interface elan.parser.Parser

parse(ElanParser) - Method in class elan.parser.InstructionParser

parse(ElanParser) - Method in class elan.parser.AssignmentParser

parse(ElanParser) - Method in class elan.parser.IdentifierParser

parse(ElanParser) - Method in class elan.parser.ExpressionParser

parse(Reader) - Method in class elan.parser.ElanParser

parses an expression and prints the result of evaluating the expression.

ParseException - exception elan.parser.ParseException.

ParseException(String) - Constructor for class elan.parser.ParseException

parseExpression() - Method in class elan.parser.ExpressionParser

parseFactor() - Method in class elan.parser.ExpressionParser

Parser - interface elan.parser.Parser.

parseTerm() - Method in class elan.parser.ExpressionParser

Print - class elan.instruction.Print.

Print(Expression) - Constructor for class elan.instruction.Print

PrintParser - class elan.parser.PrintParser.

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

R

Repeat - class elan.instruction.Repeat.

Repeat(Expression, StrictInstructionList) - Constructor for class elan.instruction.Repeat

RepeatParser - class elan.parser.RepeatParser.

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

rightValue(Context) - Method in class elan.expression.BinaryExpression

S

skipLines() - Method in class elan.parser.ElanParser

skip EOL tokens, the next call of getToken() returns something other than EOLToken

StrictInstructionList - class elan.instruction.StrictInstructionList.

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

StrictInstructionListParser - class elan.parser.StrictInstructionListParser.

Subtraction - class elan.expression.Subtraction.

Subtraction(Expression, Expression) - Constructor for class elan.expression.Subtraction

T

toString() - Method in class elan.expression.UnaryExpression

toString() - Method in class elan.expression.BinaryExpression

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

toString() - Method in class elan.expression.Negation

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

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

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

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

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

toString() - Method in class elan.parser.ParseException

U

UnaryExpression - class elan.expression.UnaryExpression.

UnaryExpression(Expression) - Constructor for class elan.expression.UnaryExpression

V

value(Context) - Method in class elan.expression.Expression

value(Context) - Method in class elan.expression.UnaryExpression

value(Context) - Method in class elan.expression.Multiplication

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

value(Context) - Method in class elan.expression.Subtraction

value(Context) - Method in class elan.expression.Negation

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

value(Context) - Method in class elan.expression.Division

value(Context) - Method in class elan.expression.Addition

Variable - class elan.expression.Variable.

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

VariableFactory - class elan.expression.VariableFactory.

A B C D E G I L M N O P R S T U V