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, NameTable nt, WorkbookSettings ws)
Constructor which creates the parse tree out of tokens

FormulaParser(java.lang.String form, ExternalSheet es, NameTable nt, WorkbookSettings ws)
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,
                     NameTable nt,
                     WorkbookSettings ws)
              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

nt - a handle to the name table

ws - the workbook settings

Throws:

FormulaException -

FormulaParser

public FormulaParser(java.lang.String form,
                     ExternalSheet es,
                     NameTable nt,
                     WorkbookSettings ws)

Constructor which creates the parse tree out of the string

Parameters:

form - the formula string

es - the external sheet handle

nt - the name table

ws - the workbook settings

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