jxl.biff.formula
Class FormulaParser

java.lang.Object
  |
  +--jxl.biff.formula.FormulaParser

public class FormulaParser

extends java.lang.Object

Parses the formula passed in (either as parsed strings or as a string) into a tree of operators and operands

Field Summary

private Parser

parser The formula parser.

Constructor Summary

FormulaParser(byte[] tokens, Cell rt, ExternalSheet es)
Constructor which creates the parse tree out of tokens

FormulaParser(java.lang.String form)
Constructor which creates the parse tree out of the string

Method Summary

byte[]	getBytes() Gets the bytes for the formula.
java.lang.String	getFormula() Gets the formula as a string
void	parse() Parses the formula into a parse tree

Methods inherited from class java.lang.Object

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

Field Detail

parser

private Parser parser

The formula parser. The object implementing this interface will either parse tokens or strings

Constructor Detail

FormulaParser

public FormulaParser(byte[] tokens,
                     Cell rt,
                     ExternalSheet es)
              throws FormulaException

Constructor which creates the parse tree out of tokens

Parameters:

tokens - the list of parsed tokens

rt - the cell containing the formula

es - a handle to the external sheet holder

Throws:

FormulaException -

FormulaParser

public FormulaParser(java.lang.String form)

Constructor which creates the parse tree out of the string

Parameters:

form - the formula string

Method Detail

parse

public void parse()
           throws FormulaException

Parses the formula into a parse tree

Throws:

FormulaException -

getFormula

public java.lang.String getFormula()
                            throws FormulaException

Gets the formula as a string

Throws:

FormulaException -

getBytes

public byte[] getBytes()

Gets the bytes for the formula. This takes into account any token mapping necessary because of shared formulas

Returns:

the bytes in RPN