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bug 25457, formula parser fixes by Peter M Murray 

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git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@353475 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Avik Sengupta 2004-01-01 07:51:34 +00:00
parent 47541ff2e8
commit a521770323
2 changed files with 70 additions and 33 deletions
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99
src/java/org/apache/poi/hssf/model/FormulaParser.java
View File

@ -80,6 +80,7 @@ import org.apache.poi.hssf.record.formula.*;
* @author Andrew C. oliver (acoliver at apache dot org)
* @author Eric Ladner (eladner at goldinc dot com)
* @author Cameron Riley (criley at ekmail.com)
* @author Peter M. Murray (pete at quantrix dot com)
*/
public class FormulaParser {
@ -228,13 +229,31 @@ public class FormulaParser {
/** Get an Identifier */
private String GetName() {
StringBuffer Token = new StringBuffer();
if (!IsAlpha(look)) {
if (!IsAlpha(look) && look != '\'') {
Expected("Name");
}
while (IsAlNum(look)) {
Token = Token.append(Character.toUpperCase(look));
GetChar();
if(look == '\'')
{
Match('\'');
boolean done = look == '\'';
while(!done)
{
Token.append(Character.toUpperCase(look));
GetChar();
if(look == '\'')
{
Match('\'');
done = look != '\'';
}
}
}
else
{
while (IsAlNum(look)) {
Token.append(Character.toUpperCase(look));
GetChar();
}
}
SkipWhite();
return Token.toString();
}
@ -478,12 +497,18 @@ public class FormulaParser {
/** Parse and Translate a Math Factor */
private void Factor() {
if (look == '(' ) {
if (look == '-')
{
Match('-');
Factor();
tokens.add(new UnaryMinusPtg());
}
else if (look == '(' ) {
Match('(');
Expression();
Match(')');
tokens.add(new ParenthesisPtg());
} else if (IsAlpha(look)){
} else if (IsAlpha(look) || look == '\''){
Ident();
} else if(look == '"') {
StringLiteral();
@ -501,26 +526,42 @@ public class FormulaParser {
}
}
private void StringLiteral() {
Match('"');
StringBuffer Token = new StringBuffer();
for(;;) {
if(look == '"') {
GetChar();
SkipWhite(); //potential white space here since it doesnt matter up to the operator
if(look == '"')
Token.append("\"");
else
break;
} else if(look == 0) {
break;
} else {
Token.append(look);
GetChar();
}
private void StringLiteral()
{
// Can't use match here 'cuz it consumes whitespace
// which we need to preserve inside the string.
// - pete
// Match('"');
if (look != '"')
Expected("\"");
else
{
GetChar();
StringBuffer Token = new StringBuffer();
for (;;)
{
if (look == '"')
{
GetChar();
SkipWhite(); //potential white space here since it doesnt matter up to the operator
if (look == '"')
Token.append("\"");
else
break;
}
else if (look == 0)
{
break;
}
else
{
Token.append(look);
GetChar();
}
}
tokens.add(new StringPtg(Token.toString()));
}
tokens.add(new StringPtg(Token.toString()));
}
}
/** Recognize and Translate a Multiply */
private void Multiply(){
@ -590,11 +631,7 @@ public class FormulaParser {
/** Parse and Translate an Expression */
private void Expression() {
if (IsAddop(look)) {
EmitLn("CLR D0"); //unaryAdd ptg???
} else {
Term();
}
Term();
while (IsAddop(look)) {
if (look == '+' ) Add();
else if (look == '-') Subtract();
@ -725,7 +762,7 @@ end;
private void setRootLevelRVA(Node n, int formulaType) {
//Pg 16, excelfileformat.pdf @ openoffice.org
Ptg p = (Ptg) n.getValue();
if (formulaType == this.FORMULA_TYPE_NAMEDRANGE) {
if (formulaType == FormulaParser.FORMULA_TYPE_NAMEDRANGE) {
if (p.getDefaultOperandClass() == Ptg.CLASS_REF) {
setClass(n,Ptg.CLASS_REF);
} else {

4
src/java/org/apache/poi/hssf/record/formula/AbstractFunctionPtg.java
View File

@ -536,7 +536,7 @@ public abstract class AbstractFunctionPtg extends OperationPtg {
functionData[25][0]=new Byte(Ptg.CLASS_VALUE);functionData[25][1]=new byte[] {Ptg.CLASS_VALUE};functionData[25][2]=new Integer(1);
functionData[26][0]=new Byte(Ptg.CLASS_VALUE);functionData[26][1]=new byte[] {Ptg.CLASS_VALUE};functionData[26][2]=new Integer(1);
functionData[27][0]=new Byte(Ptg.CLASS_VALUE);functionData[27][1]=new byte[] {Ptg.CLASS_VALUE};functionData[27][2]=new Integer(2);
functionData[28][0]=new Byte(Ptg.CLASS_VALUE);functionData[28][1]=new byte[] {Ptg.CLASS_REF};functionData[28][2]=new Integer(-1);
functionData[28][0]=new Byte(Ptg.CLASS_VALUE);functionData[28][1]=new byte[] {Ptg.CLASS_VALUE, Ptg.CLASS_REF};functionData[28][2]=new Integer(-1);
functionData[29][0]=new Byte(Ptg.CLASS_VALUE);functionData[29][1]=new byte[] {Ptg.CLASS_REF};functionData[29][2]=new Integer(-1);
functionData[30][0]=new Byte(Ptg.CLASS_VALUE);functionData[30][1]=new byte[] {Ptg.CLASS_VALUE};functionData[30][2]=new Integer(2);
functionData[31][0]=new Byte(Ptg.CLASS_VALUE);functionData[31][1]=new byte[] {Ptg.CLASS_VALUE};functionData[31][2]=new Integer(3);
@ -571,7 +571,7 @@ public abstract class AbstractFunctionPtg extends OperationPtg {
functionData[61][0]=new Byte(Ptg.CLASS_VALUE);functionData[61][1]=new byte[] {Ptg.CLASS_VALUE};functionData[61][2]=new Integer(3);
functionData[62][0]=new Byte(Ptg.CLASS_VALUE);functionData[62][1]=new byte[] {Ptg.CLASS_REF};functionData[62][2]=new Integer(-1);
functionData[63][0]=new Byte(Ptg.CLASS_VALUE);functionData[63][1]=new byte[] {Ptg.CLASS_REF};functionData[63][2]=new Integer(1);
functionData[64][0]=new Byte(Ptg.CLASS_VALUE);functionData[64][1]=new byte[] {Ptg.CLASS_REF};functionData[64][2]=new Integer(-1);
functionData[64][0]=new Byte(Ptg.CLASS_VALUE);functionData[64][1]=new byte[] {Ptg.CLASS_VALUE, Ptg.CLASS_REF};functionData[64][2]=new Integer(-1);
functionData[65][0]=new Byte(Ptg.CLASS_VALUE);functionData[65][1]=new byte[] {Ptg.CLASS_VALUE};functionData[65][2]=new Integer(3);
functionData[66][0]=new Byte(Ptg.CLASS_VALUE);functionData[66][1]=new byte[] {Ptg.CLASS_VALUE};functionData[66][2]=new Integer(3);
functionData[67][0]=new Byte(Ptg.CLASS_VALUE);functionData[67][1]=new byte[] {Ptg.CLASS_VALUE};functionData[67][2]=new Integer(1);