mirror of
https://github.com/dmolony/DiskBrowser.git
synced 2024-09-30 13:58:30 +00:00
139 lines
3.0 KiB
Java
139 lines
3.0 KiB
Java
package com.bytezone.diskbrowser.visicalc;
|
|
|
|
import java.util.regex.Matcher;
|
|
import java.util.regex.Pattern;
|
|
|
|
// http://www.bricklin.com/history/refcard1.htm
|
|
// Functions:
|
|
// @AVERAGE
|
|
// @NPV
|
|
// @LOOKUP(v,range)
|
|
// @NA
|
|
// @ERROR
|
|
// @PI
|
|
// @ABS
|
|
// @INT
|
|
// @EXP
|
|
// @SQRT
|
|
// @LN
|
|
// @LOG10
|
|
// @SIN
|
|
// @ASIN
|
|
// @COS
|
|
// @ACOS
|
|
// @TAN
|
|
// @ATAN
|
|
|
|
abstract class Function implements Value
|
|
{
|
|
private static final Pattern rangePattern = Pattern
|
|
.compile ("\\(([A-B]?[A-Z])([0-9]{1,3})\\.\\.\\.([A-B]?[A-Z])([0-9]{1,3})\\)?");
|
|
private static final Pattern addressList = Pattern.compile ("\\(([^,]+(,[^,]+)*)\\)");
|
|
|
|
Sheet parent;
|
|
String functionText;
|
|
boolean hasValue;
|
|
|
|
static Function getInstance (Sheet parent, String text)
|
|
{
|
|
if (text.startsWith ("@LOOKUP("))
|
|
return new Lookup (parent, text);
|
|
|
|
if (text.startsWith ("@COUNT("))
|
|
return new Count (parent, text);
|
|
|
|
if (text.startsWith ("@MIN("))
|
|
return new Min (parent, text);
|
|
|
|
if (text.startsWith ("@MAX("))
|
|
return new Max (parent, text);
|
|
|
|
if (text.startsWith ("@SUM("))
|
|
return new Sum (parent, text);
|
|
|
|
if (text.startsWith ("@IF("))
|
|
return new If (parent, text);
|
|
|
|
if (text.startsWith ("@OR("))
|
|
return new Or (parent, text);
|
|
|
|
if (text.startsWith ("@AND("))
|
|
return new And (parent, text);
|
|
|
|
if (text.startsWith ("@ISERROR("))
|
|
return new IsError (parent, text);
|
|
|
|
if (text.startsWith ("@ERROR("))
|
|
return new Error (parent, text);
|
|
|
|
System.out.printf ("Unknown function: %s%n", text);
|
|
return new Error (parent, "@ERROR()");
|
|
}
|
|
|
|
Function (Sheet parent, String text)
|
|
{
|
|
this.parent = parent;
|
|
|
|
// get function's parameter string
|
|
int pos = text.indexOf ('(');
|
|
this.functionText = text.substring (pos + 1, text.length () - 1);
|
|
}
|
|
|
|
@Override
|
|
public boolean hasValue ()
|
|
{
|
|
return hasValue;
|
|
}
|
|
|
|
@Override
|
|
public String getError ()
|
|
{
|
|
return hasValue ? "" : "Error";
|
|
}
|
|
|
|
protected Range getRange (String text)
|
|
{
|
|
Range range = null;
|
|
Matcher m = rangePattern.matcher (text);
|
|
if (m.find ())
|
|
{
|
|
Address fromAddress = new Address (m.group (1), m.group (2));
|
|
Address toAddress = new Address (m.group (3), m.group (4));
|
|
range = new Range (fromAddress, toAddress);
|
|
}
|
|
|
|
if (range != null)
|
|
return range;
|
|
|
|
m = addressList.matcher (text);
|
|
if (m.find ())
|
|
{
|
|
String[] cells = m.group (1).split (",");
|
|
range = new Range (cells);
|
|
}
|
|
|
|
if (range != null)
|
|
return range;
|
|
|
|
int pos = text.indexOf ("...");
|
|
if (pos > 0)
|
|
{
|
|
String from = text.substring (0, pos);
|
|
String to = text.substring (pos + 3);
|
|
Address fromAddress = new Address (from);
|
|
Address toAddress = new Address (to);
|
|
range = new Range (fromAddress, toAddress);
|
|
}
|
|
|
|
if (range == null)
|
|
System.out.printf ("null range [%s]%n", text);
|
|
|
|
return range;
|
|
}
|
|
|
|
@Override
|
|
public String toString ()
|
|
{
|
|
return String.format ("Function: %s", functionText);
|
|
}
|
|
} |