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functions + att (optimized functions) looking good. Just filling out big ol function table.

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Soon will support most excel functions with areas.  need arrays next.


git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@352566 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Andrew C. Oliver 2002-04-30 03:05:07 +00:00
parent fc90730062
commit f2a0d4f97a
4 changed files with 133 additions and 14 deletions
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8
src/java/org/apache/poi/hssf/record/FormulaRecord.java
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@ -536,7 +536,13 @@ public class FormulaRecord
for (int k = 0; k < field_8_parsed_expr.size(); k++ ) {
/* buffer.append("formula ").append(k).append(" ")
.append(((Ptg)field_8_parsed_expr.get(k)).toFormulaString());*/
((Ptg)field_8_parsed_expr.get(k)).toDebugString();
buffer.append("Formula ")
.append(k)
.append("=")
.append(((Ptg)field_8_parsed_expr.get(k)).toString())
.append("\n")
.append(((Ptg)field_8_parsed_expr.get(k)).toDebugString())
.append("\n");
}

3
src/java/org/apache/poi/hssf/record/formula/FormulaParser.java
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@ -269,6 +269,9 @@ public class FormulaParser {
ptg.setData((short)1); //sums don't care but this is what excel does.
ptg.setSum(true);
retval = ptg;
} else {
FunctionPtg ptg = new FunctionPtg(name,numArgs);
retval = ptg;
}
return retval;

129
src/java/org/apache/poi/hssf/record/formula/FunctionPtg.java
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@ -1,6 +1,8 @@
package org.apache.poi.hssf.record.formula;
import java.util.List;
import java.util.ArrayList;
import org.apache.poi.util.LittleEndian;
/**
* This class provides functions with variable arguments.
* @author Avik Sengupta
@ -9,10 +11,10 @@ import java.util.List;
*/
public class FunctionPtg extends OperationPtg {
public final static short sid = 0x22;
private final static int SIZE = 3;
private final static int SIZE = 4;
private byte field_1_num_args;
private byte field_2_fnc_index;
private short field_2_fnc_index;
//private String name;
//private int numOperands;
@ -23,7 +25,7 @@ public class FunctionPtg extends OperationPtg {
public FunctionPtg(byte[] data, int offset) {
offset++;
field_1_num_args = data[ offset + 0 ];
field_2_fnc_index = data[offset + 1 ];
field_2_fnc_index = LittleEndian.getShort(data,offset + 1 );
}
@ -33,6 +35,17 @@ public class FunctionPtg extends OperationPtg {
field_2_fnc_index = lookupIndex(pName);
}
public String toString() {
StringBuffer buffer = new StringBuffer();
buffer
.append("<FunctionPtg>").append("\n")
.append(" field_1_num_args=").append(field_1_num_args).append("\n")
.append(" name =").append(lookupName(field_2_fnc_index)).append("\n")
.append(" field_2_fnc_index=").append(field_2_fnc_index).append("\n")
.append("</FunctionPtg>");
return buffer.toString();
}
public int getType() {
return -1;
@ -42,7 +55,7 @@ public class FunctionPtg extends OperationPtg {
return field_1_num_args;
}
public int getFunctionIndex() {
public short getFunctionIndex() {
return field_2_fnc_index;
}
@ -82,20 +95,116 @@ public class FunctionPtg extends OperationPtg {
public void writeBytes(byte[] array, int offset) {
array[offset+0]=sid;
array[offset+1]=field_1_num_args;
array[offset+2]=field_2_fnc_index;
LittleEndian.putShort(array,offset+2,field_2_fnc_index);
}
public int getSize() {
return SIZE;
}
private String lookupName(byte index) {
return "SUM"; //for now always return "SUM"
private String lookupName(short index) {
String retval = null;
switch (index) {
case 5:
retval="AVERAGE";
break;
}
return retval; //for now always return "SUM"
}
private byte lookupIndex(String name) {
return 4; //for now just return SUM everytime...
private short lookupIndex(String name) {
short retval=0;
if (name.equals("AVERAGE")) {
retval=(short)5;
}
return retval; //for now just return SUM everytime...
}
/**
* Produces the function table hashmap
*/
private static List produceHash() {
List list = new ArrayList(349);
list.add(0,"COUNT");
list.add(2,"ISNA");
list.add(3,"ISERROR");
list.add(4,"SUM");
list.add(5,"AVERAGE");
list.add(6,"MIN");
list.add(7,"MAX");
list.add(8,"ROW");
list.add(9,"COLUMN");
list.add(10,"NA");
list.add(11,"NPV");
list.add(12,"STDEV");
list.add(13,"DOLLAR");
list.add(14,"FIXED");
list.add(15,"SIN");
list.add(16,"COS");
list.add(17,"TAN");
list.add(18,"ATAN");
list.add(19,"PI");
list.add(20,"SQRT");
list.add(21,"EXP");
list.add(22,"LN");
list.add(23,"LOG10");
list.add(24,"ABS");
list.add(25,"INT");
list.add(26,"SIGN");
list.add(27,"ROUND");
list.add(28,"LOOKUP");
list.add(29,"INDEX");
list.add(30,"REPT");
list.add(31,"MID");
list.add(32,"LEN");
list.add(33,"VALUE");
list.add(34,"TRUE");
list.add(35,"FALSE");
list.add(36,"AND");
list.add(37,"OR");
list.add(38,"NOT");
list.add(39,"MOD");
list.add(40,"DCOUNT");
list.add(41,"DSUM");
list.add(42,"DAVERAGE");
list.add(43,"DMIN");
list.add(44,"DMAX");
list.add(45,"DSTDEV");
list.add(46,"VAR");
list.add(47,"DVAR");
list.add(48,"TEXT");
list.add(49,"LINEST");
list.add(50,"TREND");
list.add(51,"LOGEST");
list.add(52,"GROWTH");
list.add(53,"GOTO");
list.add(54,"HALT");
list.add(56,"PV");
list.add(57,"FV");
list.add(58,"NPER");
list.add(59,"PMT");
list.add(60,"RATE");
list.add(61,"MIRR");
list.add(62,"IRR");
list.add(63,"RAND");
list.add(64,"MATCH");
list.add(65,"DATE");
list.add(66,"TIME");
list.add(67,"DAY");
list.add(68,"MONTH");
list.add(69,"YEAR");
list.add(70,"WEEKDAY");
list.add(71,"HOUR");
list.add(72,"MINUTE");
list.add(73,"SECOND");
list.add(74,"NOW");
list.add(75,"AREAS");
list.add(76,"ROWS");
list.add(77,"COLUMNS");
list.add(78,"OFFSET");
list.add(79,"ABSREF");
list.add(80,"RELREF");
list.add(81,"ARGUMENT");
return list;
}
}

7
src/java/org/apache/poi/hssf/record/formula/Ptg.java
View File

@ -235,14 +235,14 @@ public abstract class Ptg
retval = new FunctionPtg(data, offset);
break;
/* case valueFunc :
case valueFunc :
retval = new FunctionPtg(data, offset);
break;
case arrayFunc :
retval = new FunctionPtg(data, offset);
break;
*/
case NumberPtg.sid :
retval = new NumberPtg(data, offset);
@ -299,7 +299,7 @@ public abstract class Ptg
/**
* dump a debug representation (hexdump) to a strnig
*/
public void toDebugString() {
public String toDebugString() {
byte[] ba = new byte[getSize()];
String retval=null;
writeBytes(ba,0);
@ -308,6 +308,7 @@ public abstract class Ptg
} catch (Exception e) {
e.printStackTrace();
}
return retval;
}