corpus.excel
Class Operator

java.lang.Object
  |
  +--corpus.excel.Component
        |
        +--corpus.excel.FormulaComponent
              |
              +--corpus.excel.Operator

All Implemented Interfaces:

java.io.Serializable

public class Operator

extends FormulaComponent

Used to store the internal representation of a Operator. An operator combines terms and produces a result. In Excel, there are many predefined operators that support both mathematical and logical operations. When you combine several operators into a single formula, Microsoft Excel performs the operations in the following order:

• : Range
• space Intersection
• , Union
• - Negation
• % Percentage
• ^ Exponentiation
• * or / Multiplication or Division
• + or - Addition or Subtraction
• & Text Operator
• = < > <= >= <> Comparison Operators

See Also:

Serialized Form

Field Summary

static int	CARET
static int	COMPARISON
static int	CONCATIONATION
static int	DIVIDE
static int	EXPONENT
static int	MINUS
static int	MODULO
static int	PLUS
static int	TIMES
int	type

Fields inherited from class corpus.excel.FormulaComponent

formula

Fields inherited from class corpus.excel.Component

haltOnErrors

Constructor Summary

Operator(java.lang.String operator)

Method Summary

int	getType() returns the type of this operator
static Operator	highestPrecedence(java.util.Vector operators) Works through the input vector and returns the first highest precedent operator found.
boolean	ifUnaryOperator() A unary operator is an operator that requires only one term.
boolean	isBinaryOperator() A binary operator is an operator that requires two terms.
boolean	isNegative()
int	length()
static void	main(java.lang.String[] args)
void	setNegative()
void	setSubtraction()
java.lang.String	toHTMLString() Converts information about this component into an HTML formatted String.
java.lang.String	toString() Converts information about this component into a String.

Methods inherited from class corpus.excel.FormulaComponent

getReferingFormula, parseTree

Methods inherited from class java.lang.Object

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

Field Detail

PLUS

public static final int PLUS

See Also:

Constant Field Values

MINUS

public static final int MINUS

See Also:

Constant Field Values

TIMES

public static final int TIMES

See Also:

Constant Field Values

DIVIDE

public static final int DIVIDE

See Also:

Constant Field Values

MODULO

public static final int MODULO

See Also:

Constant Field Values

EXPONENT

public static final int EXPONENT

See Also:

Constant Field Values

COMPARISON

public static final int COMPARISON

See Also:

Constant Field Values

CONCATIONATION

public static final int CONCATIONATION

See Also:

Constant Field Values

CARET

public static final int CARET

See Also:

Constant Field Values

type

public int type

Constructor Detail

Operator

public Operator(java.lang.String operator)

Method Detail

setNegative

public void setNegative()

setSubtraction

public void setSubtraction()

isNegative

public boolean isNegative()

getType

public int getType()

returns the type of this operator

isBinaryOperator

public boolean isBinaryOperator()

A binary operator is an operator that requires two terms. Examples include +, -, *, /, %.

ifUnaryOperator

public boolean ifUnaryOperator()

A unary operator is an operator that requires only one term. Examples include ++, the increment operator, --, the decrement operator and !, logical negator.

toString

public java.lang.String toString()

Description copied from class: Component

Converts information about this component into a String.

Specified by:

toString in class Component

toHTMLString

public java.lang.String toHTMLString()

Converts information about this component into an HTML formatted String.

Specified by:

toHTMLString in class Component

highestPrecedence

public static Operator highestPrecedence(java.util.Vector operators)

Works through the input vector and returns the first highest precedent operator found.

length

public int length()

main

public static void main(java.lang.String[] args)
                 throws gnu.regexp.REException

gnu.regexp.REException