mirror of https://github.com/apache/poi.git
Avik's latest formula patches
PR: Obtained from: Submitted by: Reviewed by: git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@352498 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Andrew C. Oliver
parent
6212e135de
commit
6e53c07266
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@ -78,7 +78,7 @@ public class FormulaRecord
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implements CellValueRecordInterface, Comparable
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{
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public static final boolean EXPERIMENTAL_FORMULA_SUPPORT_ENABLED=false;
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public static final boolean EXPERIMENTAL_FORMULA_SUPPORT_ENABLED=true;
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public static final short sid =
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0x06; // docs say 406...because of a bug Microsoft support site article #Q184647)
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@ -359,11 +359,10 @@ public class FormulaRecord
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LittleEndian.putShort(data, 18 + offset, getOptions());
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LittleEndian.putInt(data, 20 + offset, field_6_zero);
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LittleEndian.putShort(data, 24 + offset, getExpressionLength());
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serializePtgs(data, 26+offset);
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} else {
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System.arraycopy(all_data,0,data,offset,all_data.length);
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}
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// serializePtgs(data, 26+offset);
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return getRecordSize();
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}
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@ -141,6 +141,7 @@ public class AddPtg
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return buffer.toString();
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}
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public int getPrecedence() {
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return 5;
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}
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@ -149,6 +150,18 @@ public class AddPtg
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return 1;
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}
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public String toFormulaString(String[] operands) {
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StringBuffer buffer = new StringBuffer();
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buffer.append(operands[ 0 ]);
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buffer.append("+");
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buffer.append(operands[ 1 ]);
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return buffer.toString();
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}
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public void manipulate(List source, List results, int pos) {
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standardBinaryManipulation(source,results,pos);
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@ -210,5 +210,12 @@ public class AttrPtg
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public void manipulate(List source, List results, int pos) {
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}
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public String toFormulaString(String[] operands) {
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return "SUM(" + operands[ 0 ] + ")";
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}
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public int getPrecedence() {
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return 1;
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}
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}
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@ -120,6 +120,24 @@ public class DividePtg
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return buffer.toString();
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}
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public int getPrecedence() {
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return 4;
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}
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public int getStringLength() {
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return 1;
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}
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public String toFormulaString(String[] operands) {
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StringBuffer buffer = new StringBuffer();
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buffer.append(operands[ 0 ]);
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buffer.append("/");
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buffer.append(operands[ 1 ]);
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return buffer.toString();
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}
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public void manipulate(List source, List results, int pos) {
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}
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@ -60,56 +60,66 @@ import java.util.List;
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import java.util.ArrayList;
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import java.util.Stack;
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import org.apache.poi.hssf.usermodel.*;
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import java.io.FileOutputStream;
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/**
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* EXPERIMENTAL code to parse formulas back and forth between RPN and not
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* EXPERIMENTAL
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*
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* @author Avik Sengupta <lists@aviksengupta.com>
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* @author Avik Sengupta <avik AT Avik Sengupta DOT com>
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*
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* This class parses a formula string into a List of tokens in RPN order
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* Inspired by
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* Lets Build a Compiler, by Jack Crenshaw
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* BNF for the formula expression is :
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* <expression> ::= <term> [<addop> <term>]*
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* <term> ::= <factor> [ <mulop> <factor ]*
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* <factor> ::= <number> | (<expression>) | <cellRef>
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*/
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public class FormulaParser {
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private String formulaString;
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private int pointer=0;
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private Stack operationsList = new java.util.Stack();
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private Stack operandsList = new java.util.Stack();
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private List tokens = new java.util.Stack();
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//private Stack tokens = new java.util.Stack();
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private List result = new ArrayList();
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private int numParen;
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//{--------------------------------------------------------------}
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//{ Constant Declarations }
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private static char TAB = '\t';
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private static char CR = '\n';
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//{--------------------------------------------------------------}
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//{ Variable Declarations }
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private char Look; // Lookahead Character
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private char Look; //{ Lookahead Character }
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/** create the parser with the string that is to be parsed
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* later call the parse() method to return ptg list in rpn order
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* then call the getRPNPtg() to retrive the parse results
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* This class is recommended only for single threaded use
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* The parse and getPRNPtg are internally synchronized for safety, thus
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* while it is safe to use in a multithreaded environment, you will get long lock waits.
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*/
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public FormulaParser(String formula){
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formulaString = formula;
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pointer=0;
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}
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//{--------------------------------------------------------------}
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//{ Read New Character From Input Stream }
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/** Read New Character From Input Stream */
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private void GetChar() {
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Look=formulaString.charAt(pointer++);
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System.out.println("Got char: "+Look);
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//System.out.println("Got char: "+Look);
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}
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//{--------------------------------------------------------------}
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//{ Report an Error }
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/** Report an Error */
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private void Error(String s) {
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System.out.println("Error: "+s);
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}
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//{--------------------------------------------------------------}
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//{ Report Error and Halt }
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/** Report Error and Halt */
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private void Abort(String s) {
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Error(s);
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//System.exit(1); //throw exception??
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@ -117,61 +127,50 @@ public class FormulaParser {
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}
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//{--------------------------------------------------------------}
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//{ Report What Was Expected }
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/** Report What Was Expected */
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private void Expected(String s) {
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Abort(s + " Expected");
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}
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//{--------------------------------------------------------------}
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//{ Recognize an Alpha Character }
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/** Recognize an Alpha Character */
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private boolean IsAlpha(char c) {
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return Character.isLetter(c);
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//return UpCase(c) in ['A'..'Z'];
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}
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//{--------------------------------------------------------------}
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//{ Recognize a Decimal Digit }
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/** Recognize a Decimal Digit */
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private boolean IsDigit(char c) {
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System.out.println("Checking digit for"+c);
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//System.out.println("Checking digit for"+c);
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return Character.isDigit(c);
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//return ("0123456789".indexOf( (int) c) != 0)//c in ['0'..'9'];
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}
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//{--------------------------------------------------------------}
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//{ Recognize an Alphanumeric }
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/** Recognize an Alphanumeric */
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private boolean IsAlNum(char c) {
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return (IsAlpha(c) || IsDigit(c));
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}
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//{--------------------------------------------------------------}
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//{ Recognize an Addop }
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/** Recognize an Addop */
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private boolean IsAddop( char c) {
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return (c =='+' || c =='-');
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}
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//{--------------------------------------------------------------}
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//{ Recognize White Space }
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/** Recognize White Space */
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private boolean IsWhite( char c) {
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return (c ==' ' || c== TAB);
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}
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//{--------------------------------------------------------------}
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//{ Skip Over Leading White Space }
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/** Skip Over Leading White Space */
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private void SkipWhite() {
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while (IsWhite(Look)) {
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GetChar();
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@ -179,9 +178,8 @@ public class FormulaParser {
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}
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//{--------------------------------------------------------------}
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//{ Match a Specific Input Character }
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/** Match a Specific Input Character */
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private void Match(char x) {
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if (Look != x) {
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Expected("" + x + "");
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@ -192,9 +190,7 @@ public class FormulaParser {
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}
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//{--------------------------------------------------------------}
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//{ Get an Identifier }
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/** Get an Identifier */
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private String GetName() {
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String Token;
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Token = "";
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@ -211,9 +207,7 @@ public class FormulaParser {
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}
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//{--------------------------------------------------------------}
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//{ Get a Number }
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/** Get a Number */
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private String GetNum() {
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String Value ="";
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if (!IsDigit(Look)) Expected("Integer");
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@ -225,138 +219,119 @@ public class FormulaParser {
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return Value;
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}
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//{--------------------------------------------------------------}
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//{ Output a String with Tab }
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/** Output a String with Tab */
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private void Emit(String s){
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System.out.print(TAB+s);
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}
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//{--------------------------------------------------------------}
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//{ Output a String with Tab and CRLF }
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/** Output a String with Tab and CRLF */
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private void EmitLn(String s) {
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Emit(s);
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System.out.println();;
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}
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//{---------------------------------------------------------------}
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//{ Parse and Translate a Identifier }
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/** Parse and Translate a Identifier */
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private void Ident() {
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String Name;
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Name = GetName();
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if (Look == '('){
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//This is a function
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Match('(');
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//Expression() -- add this!
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int numArgs = Arguments();
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Match(')');
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//this is the end of the function
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//EmitLn("BSR " + Name);
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tokens.add(new DummyFunctionPtg(Name,numArgs));
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} else {
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//EmitLn("MOVE " + Name + "(PC),D0b");
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//this can be either a cell ref or a named range !!
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boolean cellRef = true ; //we should probably do it with reg exp??
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if (cellRef) {
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operationsList.add(new ValueReferencePtg()); //TODO we need to pass in Name somewhere
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tokens.add(new ValueReferencePtg()); //TODO we need to pass in Name somewhere??
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}else {
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//handle after named range is integrated!!
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}
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}
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}
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/** get arguments to a function */
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private int Arguments() {
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int numArgs = 0;
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if (Look != ')') {
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numArgs++;
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Expression();
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}
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while (Look == ',') {
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Match(',');
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Expression();
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numArgs++;
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}
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return numArgs;
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}
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//{---------------------------------------------------------------}
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//{ Parse and Translate a Math Factor }
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//procedure Expression; Forward;
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/** Parse and Translate a Math Factor */
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private void Factor() {
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if (Look == '(' ) {
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Match('(');
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operationsList.add(new ParenthesisPtg());
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Expression();
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Match(')');
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operationsList.add(new ParenthesisPtg());
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tokens.add(new ParenthesisPtg());
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return;
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} else if (IsAlpha(Look)){
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Ident();
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}else{
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//EmitLn("MOVE #" + GetNum() + ",D0");
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IntPtg p = new IntPtg();
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p.setValue(Short.parseShort(GetNum()));
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operandsList.add(p);
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tokens.add(p);
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}
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}
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//{--------------------------------------------------------------}
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//{ Recognize and Translate a Multiply }
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/** Recognize and Translate a Multiply */
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private void Multiply(){
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Match('*');
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Factor();
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operationsList.add(new MultiplyPtg());
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//EmitLn("MULS (SP)+,D0");
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tokens.add(new MultiplyPtg());
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}
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//{-------------------------------------------------------------}
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//{ Recognize and Translate a Divide }
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/** Recognize and Translate a Divide */
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private void Divide() {
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Match('/');
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Factor();
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operationsList.add(new DividePtg());
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//EmitLn("MOVE (SP)+,D1");
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//EmitLn("EXS.L D0");
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//EmitLn("DIVS D1,D0");
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tokens.add(new DividePtg());
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}
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//{---------------------------------------------------------------}
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//{ Parse and Translate a Math Term }
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/** Parse and Translate a Math Term */
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private void Term(){
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Factor();
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while (Look == '*' || Look == '/' ) {
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//EmitLn("MOVE D0,-(SP)");
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///TODO do we need to do anything here??
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if (Look == '*') Multiply();
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if (Look == '/') Divide();
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}
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}
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//{--------------------------------------------------------------}
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//{ Recognize and Translate an Add }
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/** Recognize and Translate an Add */
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private void Add() {
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Match('+');
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Term();
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//EmitLn("ADD (SP)+,D0");
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operationsList.add(new AddPtg());
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tokens.add(new AddPtg());
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}
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//{-------------------------------------------------------------}
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//{ Recognize and Translate a Subtract }
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/** Recognize and Translate a Subtract */
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private void Subtract() {
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Match('-');
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Term();
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operationsList.add(new SubtractPtg());
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//EmitLn("SUB (SP)+,D0");
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//EmitLn("NEG D0");
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tokens.add(new SubtractPtg());
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}
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//{---------------------------------------------------------------}
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//{ Parse and Translate an Expression }
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/** Parse and Translate an Expression */
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private void Expression() {
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if (IsAddop(Look)) {
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EmitLn("CLR D0"); //unaryAdd ptg???
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@ -364,9 +339,10 @@ public class FormulaParser {
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Term();
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}
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while (IsAddop(Look)) {
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EmitLn("MOVE D0,-(SP)");
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if ( Look == '+' ) Add();
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if (Look == '-') Subtract();
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// if (Look == '*') Multiply();
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// if (Look == '/') Divide();
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}
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}
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@ -380,71 +356,104 @@ begin
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Name := GetName;
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Match('=');
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Expression;
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EmitLn('LEA ' + Name + '(PC),A0');
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EmitLn('MOVE D0,(A0)')
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end;
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**/
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//{--------------------------------------------------------------}
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//{ Initialize }
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/** Initialize */
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private void Init() {
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GetChar();
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SkipWhite();
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}
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/** API call to execute the parsing of the formula
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*
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*/
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public void parse() {
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Init();
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Expression();
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//now tokenisation is done .. convert to RPN!!
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tokenToRPN();
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synchronized (tokens) {
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Init();
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Expression();
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}
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}
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private void tokenToRPN() {
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OperationPtg op;
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Ptg operand;
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int numOper = 0;
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int numOnStack = 0;
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result.add(operandsList.pop()); numOnStack++;
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/** API call to retrive the array of Ptgs created as
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* a result of the parsing
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*/
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public Ptg[] getRPNPtg() {
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synchronized (tokens) {
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if (tokens == null) throw new IllegalStateException("Please parse a string before trying to access the parse result");
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Ptg[] retval = new Ptg[tokens.size()];
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return (Ptg[]) tokens.toArray(retval);
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}
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}
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while (!operationsList.isEmpty()) {
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op = (OperationPtg) operationsList.pop();
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if (op instanceof ParenthesisPtg) {
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// do something smart
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}
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/** Static method to convert an array of Ptgs in RPN order
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* to a human readable string format in infix mode
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* TODO - extra brackets might appear, but string will be semantically correct.
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*/
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public static String toFormulaString(Ptg[] ptgs) {
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java.util.Stack stack = new java.util.Stack();
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int numPtgs = ptgs.length;
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OperationPtg o;
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int numOperands;
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String[] operands;
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for (int i=0;i<numPtgs;i++) {
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if (ptgs[i] instanceof OperationPtg) {
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o = (OperationPtg) ptgs[i];
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numOperands = o.getNumberOfOperands();
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operands = new String[numOperands];
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for (int j=0;j<numOperands;j++) {
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operands[numOperands-j-1] = (String) stack.pop(); //TODO: catch stack underflow and throw parse exception.
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||||
for (numOper = op.getNumberOfOperands();numOper>0;numOper--) {
|
||||
if (numOnStack==0) {
|
||||
result.add(operandsList.pop());//numOnStack++;
|
||||
} else {
|
||||
numOnStack--;
|
||||
}
|
||||
String result = o.toFormulaString(operands);
|
||||
//if (! (o instanceof DummyFunctionPtg) ) result = "("+result+")" ;
|
||||
stack.push(result);
|
||||
} else {
|
||||
stack.push(ptgs[i].toFormulaString());
|
||||
}
|
||||
result.add(op);
|
||||
numOnStack++;
|
||||
}
|
||||
return (String) stack.pop(); //TODO: catch stack underflow and throw parse exception.
|
||||
}
|
||||
|
||||
public String toString() {
|
||||
StringBuffer buf = new StringBuffer();
|
||||
for (int i=0;i<result.size();i++) {
|
||||
buf.append( ( (Ptg)result.get(i)).toFormulaString());
|
||||
for (int i=0;i<tokens.size();i++) {
|
||||
buf.append( ( (Ptg)tokens.get(i)).toFormulaString());
|
||||
buf.append(' ');
|
||||
}
|
||||
return buf.toString();
|
||||
}
|
||||
|
||||
|
||||
//{--------------------------------------------------------------}
|
||||
//{ Main Program for testing}
|
||||
/** Main Program for testing*/
|
||||
public static void main(String[] argv) {
|
||||
FormulaParser fp = new FormulaParser(argv[0]+";");
|
||||
System.out.println("\nFormula is: ");
|
||||
fp.parse();
|
||||
System.out.println(fp.toString());
|
||||
System.out.println("RPN Form is: " +fp.toString());
|
||||
|
||||
System.out.println("Converted Text form is : "+fp.toFormulaString(fp.getRPNPtg()));
|
||||
try {
|
||||
short rownum = 0;
|
||||
FileOutputStream out = new FileOutputStream("test.xls");
|
||||
HSSFWorkbook wb = new HSSFWorkbook();
|
||||
HSSFSheet s = wb.createSheet();
|
||||
HSSFRow r = null;
|
||||
HSSFCell c = null;
|
||||
|
||||
r = s.createRow((short) 0);
|
||||
c = r.createCell((short) 0);
|
||||
c.setCellFormula(argv[0]);
|
||||
|
||||
wb.write(out);
|
||||
out.close();
|
||||
} catch (java.io.IOException ioe) {
|
||||
ioe.printStackTrace();
|
||||
}
|
||||
//If Look <> CR then Expected('NewLine');
|
||||
}
|
||||
//{--------------------------------------------------------------}
|
||||
|
||||
}
|
||||
|
|
@ -132,6 +132,16 @@ public class MultiplyPtg
|
|||
return buffer.toString();
|
||||
}
|
||||
|
||||
public String toFormulaString(String[] operands) {
|
||||
StringBuffer buffer = new StringBuffer();
|
||||
|
||||
buffer.append(operands[ 0 ]);
|
||||
buffer.append("*");
|
||||
buffer.append(operands[ 1 ]);
|
||||
return buffer.toString();
|
||||
}
|
||||
|
||||
|
||||
public void manipulate(List source, List results, int pos) {
|
||||
standardBinaryManipulation(source, results, pos);
|
||||
}
|
||||
|
|
@ -155,4 +165,5 @@ public class MultiplyPtg
|
|||
}
|
||||
|
||||
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -75,6 +75,10 @@ public abstract class OperationPtg extends Ptg
|
|||
|
||||
public abstract int getType();
|
||||
|
||||
public abstract String toFormulaString(String[] operands);
|
||||
|
||||
public abstract int getPrecedence();
|
||||
|
||||
public abstract int getNumberOfOperands();
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -58,9 +58,9 @@ package org.apache.poi.hssf.record.formula;
|
|||
import java.util.List;
|
||||
|
||||
/**
|
||||
* Dummy class, we want it only for for the parsing process
|
||||
* does not actually get into the file -- note by andy...there is a parenthesis PTG
|
||||
* that can be written and is sometimes!
|
||||
* While formula tokens are stored in RPN order and thus do not need parenthesis for
|
||||
* precedence reasons, Parenthesis tokens ARE written to ensure that user entered
|
||||
* parenthesis are displayed as-is on reading back
|
||||
*
|
||||
* Avik Sengupta <lists@aviksengupta.com>
|
||||
* Andrew C. Oliver (acoliver at apache dot org)
|
||||
|
|
@ -69,17 +69,18 @@ public class ParenthesisPtg
|
|||
extends OperationPtg
|
||||
{
|
||||
|
||||
|
||||
private final static int SIZE = 1;
|
||||
public final static byte sid = 0x15;
|
||||
|
||||
|
||||
public void writeBytes(byte [] array, int offset)
|
||||
{
|
||||
//do nothing
|
||||
array[ offset + 0 ] = sid;
|
||||
}
|
||||
|
||||
public int getSize()
|
||||
{
|
||||
return 0;
|
||||
return SIZE;
|
||||
}
|
||||
|
||||
public int getType()
|
||||
|
|
@ -89,21 +90,29 @@ public class ParenthesisPtg
|
|||
|
||||
public int getNumberOfOperands()
|
||||
{
|
||||
return 0;
|
||||
return 1;
|
||||
}
|
||||
|
||||
public String toFormulaString()
|
||||
{
|
||||
return "(";
|
||||
return "()";
|
||||
}
|
||||
|
||||
public String toFormulaString(Ptg [] operands)
|
||||
{
|
||||
return "(";
|
||||
return "";
|
||||
}
|
||||
|
||||
public void manipulate(List source, List results, int pos) {
|
||||
}
|
||||
|
||||
public String toFormulaString(String[] operands) {
|
||||
return "("+operands[0]+")";
|
||||
}
|
||||
|
||||
public int getPrecedence() {
|
||||
return 2;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -110,6 +110,10 @@ public class PowerPtg
|
|||
return "^";
|
||||
}
|
||||
|
||||
public int getPrecedence() {
|
||||
return 3;
|
||||
}
|
||||
|
||||
public String toFormulaString(Ptg [] operands)
|
||||
{
|
||||
StringBuffer buffer = new StringBuffer();
|
||||
|
|
@ -120,7 +124,20 @@ public class PowerPtg
|
|||
return buffer.toString();
|
||||
}
|
||||
|
||||
|
||||
public String toFormulaString(String[] operands) {
|
||||
StringBuffer buffer = new StringBuffer();
|
||||
|
||||
buffer.append(operands[ 1 ]);
|
||||
buffer.append("^");
|
||||
buffer.append(operands[ 0 ]);
|
||||
return buffer.toString();
|
||||
}
|
||||
|
||||
|
||||
|
||||
public void manipulate(List source, List results, int pos) {
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -77,6 +77,54 @@ public abstract class Ptg
|
|||
{
|
||||
}
|
||||
|
||||
/** convert infix order ptg list to rpn order ptg list
|
||||
* @return List ptgs in RPN order
|
||||
* @param infixPtgs List of ptgs in infix order
|
||||
*/
|
||||
public static List ptgsToRpn(List infixPtgs) {
|
||||
java.util.Stack operands = new java.util.Stack();
|
||||
java.util.List retval = new java.util.Stack();
|
||||
|
||||
java.util.ListIterator i = infixPtgs.listIterator();
|
||||
Object p;
|
||||
OperationPtg o ;
|
||||
boolean weHaveABracket = false;
|
||||
while (i.hasNext()) {
|
||||
p=i.next();
|
||||
if (p instanceof OperationPtg) {
|
||||
if (p instanceof ParenthesisPtg) {
|
||||
if (!weHaveABracket) {
|
||||
operands.push(p);
|
||||
weHaveABracket = true;
|
||||
} else {
|
||||
o = (OperationPtg) operands.pop();
|
||||
while (!(o instanceof ParenthesisPtg)) {
|
||||
retval.add(o);
|
||||
}
|
||||
weHaveABracket = false;
|
||||
}
|
||||
} else {
|
||||
|
||||
while (!operands.isEmpty() && ((OperationPtg) operands.peek()).getPrecedence() >= ((OperationPtg) p).getPrecedence() ) { //TODO handle ^ since it is right associative
|
||||
retval.add(operands.pop());
|
||||
}
|
||||
operands.push(p);
|
||||
}
|
||||
} else {
|
||||
retval.add(p);
|
||||
}
|
||||
}
|
||||
while (!operands.isEmpty()) {
|
||||
if (operands.peek() instanceof ParenthesisPtg ){
|
||||
//throw some error
|
||||
} else {
|
||||
retval.add(operands.pop());
|
||||
}
|
||||
}
|
||||
return retval;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
/*
|
||||
|
|
|
|||
|
|
@ -120,6 +120,24 @@ public class SubtractPtg
|
|||
return buffer.toString();
|
||||
}
|
||||
|
||||
public int getPrecedence() {
|
||||
return 5;
|
||||
}
|
||||
|
||||
public int getStringLength() {
|
||||
return 1;
|
||||
}
|
||||
|
||||
public String toFormulaString(String[] operands) {
|
||||
StringBuffer buffer = new StringBuffer();
|
||||
|
||||
buffer.append(operands[ 0 ]);
|
||||
buffer.append("-");
|
||||
buffer.append(operands[ 1 ]);
|
||||
return buffer.toString();
|
||||
}
|
||||
|
||||
|
||||
public void manipulate(List source, List results, int pos) {
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -129,7 +129,19 @@ public class ValueVariableFunctionPtg
|
|||
return toFormulaString();
|
||||
}
|
||||
|
||||
|
||||
public String toFormulaString(String[] operands) {
|
||||
return toFormulaString();
|
||||
}
|
||||
|
||||
|
||||
public void manipulate(List source, List results, int pos) {
|
||||
}
|
||||
|
||||
public int getPrecedence() {
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -70,6 +70,9 @@ import org.apache.poi.hssf.record.NumberRecord;
|
|||
import org.apache.poi.hssf.record.BlankRecord;
|
||||
import org.apache.poi.hssf.record.BoolErrRecord;
|
||||
import org.apache.poi.hssf.record.ExtendedFormatRecord;
|
||||
import org.apache.poi.hssf.record.formula.Ptg;
|
||||
|
||||
import org.apache.poi.hssf.record.formula.FormulaParser;
|
||||
|
||||
import java.util.Date;
|
||||
import java.util.Calendar;
|
||||
|
|
@ -684,6 +687,32 @@ public class HSSFCell
|
|||
}
|
||||
}
|
||||
|
||||
public void setCellFormula(String formula) {
|
||||
if (formula==null) {
|
||||
setCellType(CELL_TYPE_BLANK,false);
|
||||
} else {
|
||||
|
||||
setCellType(CELL_TYPE_FORMULA,false);
|
||||
FormulaRecord rec = (FormulaRecord) record;
|
||||
rec.setOptions(( short ) 2);
|
||||
rec.setValue(0);
|
||||
rec.setXFIndex(( short ) 0x0f);
|
||||
FormulaParser fp = new FormulaParser(formula+";");
|
||||
fp.parse();
|
||||
Ptg[] ptg = fp.getRPNPtg();
|
||||
int size = 0;
|
||||
System.out.println("got Ptgs " + ptg.length);
|
||||
for (int k = 0; k < ptg.length; k++) {
|
||||
size += ptg[ k ].getSize();
|
||||
rec.pushExpressionToken(ptg[ k ]);
|
||||
}
|
||||
rec.setExpressionLength(( short ) size);
|
||||
//return rec;
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* get the value of the cell as a number. For strings we throw an exception.
|
||||
* For blank cells we return a 0.
|
||||
|
|
|
|||
Loading…
Reference in New Issue