jmathlib.core.tokens
Class Token

java.lang.Object
  jmathlib.core.interpreter.RootObject
      jmathlib.core.tokens.Token

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, ErrorCodes, TokenConstants

Direct Known Subclasses:

OperandToken, OperatorToken

public abstract class Token
extends RootObject
implements TokenConstants

This is the base class for all the types of token supported by MathLib

See Also:

Serialized Form

Field Summary

protected int

priority The priority of the token

Fields inherited from interface jmathlib.core.constants.TokenConstants

ADDSUB_PRIORITY, AND_PRIORITY, ANDAND_PRIORITY, ASSIGN_PRIORITY, BRACKET_PRIORITY, COMPARE_PRIORITY, CONCAT, MATRIX, MULDIV_PRIORITY, OR_PRIORITY, OROR_PRIORITY, PARAMETER, POWER_PRIORITY, RELATION_PRIORITY, SINGLE, ttDelimiter, ttNotSet, ttOperand, ttOperator

Fields inherited from interface jmathlib.core.constants.ErrorCodes

ERR_BRACKET_OPEN, ERR_BRACKET_ORDER, ERR_FUNCTION_NOT_FOUND, ERR_FUNCTION_NOT_IMPLEMENTED, ERR_INSUFFICIENT_PARAMETERS, ERR_INVALID_PARAMETER, ERR_LVALUE_REQUIRED, ERR_MATRIX_SINGULAR, ERR_NOT_SQUARE_MATRIX, ERR_OPNOTSUPPORTED, ERR_TOO_MANY_PARAMETERS, ERR_USER_ERROR, ERR_VARIABLE_NOTDEFINED, OK, OK_FUNCTION_PROCESS

Constructor Summary

Token()
Default Constructor - create a token with the type not set

Token(int _priority)
Constructor

Method Summary

abstract OperandToken	evaluate(Token[] operands, GlobalValues globals) evaluate the token
boolean	isDisplayResult() return if the display flag for a given token is set
void	setDisplayResult(boolean _displayResultSwitch) set the display flag for a given token
java.lang.String	toMathMlString(OperandToken[] operands) Converts the token to its MathML representation.
abstract java.lang.String	toString()
java.lang.String	toString(GlobalValues globals)

Methods inherited from class jmathlib.core.interpreter.RootObject

clone, toString

Methods inherited from class java.lang.Object

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

Field Detail

priority

protected int priority

The priority of the token

Constructor Detail

Token

public Token()

Default Constructor - create a token with the type not set

Token

public Token(int _priority)

Constructor

Parameters:

_priority - = priority of token

Method Detail

evaluate

public abstract OperandToken evaluate(Token[] operands,
                                      GlobalValues globals)

evaluate the token

Parameters:

operands - = an array of RootObject containing the tokens operands

-

Returns:

the result of the token evaluation as a RootObject

toString

public abstract java.lang.String toString()

Overrides:

toString in class java.lang.Object

Returns:

a string representation of the token

toString

public java.lang.String toString(GlobalValues globals)

Parameters:

globals -

Returns:

toMathMlString

public java.lang.String toMathMlString(OperandToken[] operands)

Converts the token to its MathML representation. At the moment this is unimplemented and just converts the token into a string

setDisplayResult

public void setDisplayResult(boolean _displayResultSwitch)

set the display flag for a given token

isDisplayResult

public boolean isDisplayResult()

return if the display flag for a given token is set

Returns: