lt.monarch.math
Class AbstractTokenizer

java.lang.Object
  lt.monarch.math.AbstractTokenizer

Direct Known Subclasses:

FormulaTokenizer, LogicalTokenizer

public abstract class AbstractTokenizer
extends java.lang.Object

Abstract tokenizer class. It determines the interface of the formula and logical tokenizers.

Field Summary

Modifier and Type	Field and Description
protected java.lang.String	token Last found token in the formula

Constructor and Description

AbstractTokenizer()

Method Summary

Modifier and Type	Method and Description
abstract void	dispose() Disposes the tokenizer
abstract int	getPosition() Returns the position of the tokenizer.
abstract java.lang.String	getPreviousToken() Return the previous token.
abstract boolean	hasMoreTokens() Checks if the string has more tokens
boolean	isLeftBracket() Checks if the last string is the left bracket.
boolean	isRightBracket() Checks if the last token is the right bracket.
abstract java.lang.String	nextToken() Returns next token

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

token

protected java.lang.String token

Last found token in the formula

Constructor Detail

AbstractTokenizer

public AbstractTokenizer()

Method Detail

hasMoreTokens

public abstract boolean hasMoreTokens()

Checks if the string has more tokens

Returns:

true if has more tokens

nextToken

public abstract java.lang.String nextToken()

Returns next token

Returns:

Next token

getPreviousToken

public abstract java.lang.String getPreviousToken()

Return the previous token.

Returns:

Previous token.

getPosition

public abstract int getPosition()

Returns the position of the tokenizer.

Returns:

The position of the tokenizer in the original string.

dispose

public abstract void dispose()

Disposes the tokenizer

isLeftBracket

public boolean isLeftBracket()

Checks if the last string is the left bracket.

Returns:

True is the string is left bracket.

isRightBracket

public boolean isRightBracket()

Checks if the last token is the right bracket.

Returns:

True is the last token is right bracket.