dmolony-DiskBrowser/src/com/bytezone/diskbrowser/visicalc/Function.java

package com.bytezone.diskbrowser.visicalc;

import java.util.Iterator;

abstract class Function extends AbstractValue implements Iterable<Value>
{
  static final String[] functionList =
      { "@ABS(", "@ACOS(", "@AND(", "@ASIN(", "@ATAN(", "@AVERAGE(", "@COUNT(",
        "@CHOOSE(", "@COS(", "@ERROR", "@EXP(", "@FALSE", "@IF(", "@INT(", "@ISERROR(",
        "@ISNA(", "@LOG10(", "@LOOKUP(", "@LN(", "@MIN(", "@MAX(", "@NA", "@NPV(", "@OR(",
        "@PI", "@SIN(", "@SUM(", "@SQRT(", "@TAN(", "@TRUE" };

  protected final Sheet parent;
  protected final Cell cell;
  protected String functionName;
  protected String functionText;
  protected String fullText;

  Function (Cell cell, String text)
  {
    super ("Function");
    this.parent = cell.getParent ();
    this.cell = cell;
    fullText = text;

    // get function's parameter string
    int pos = text.indexOf ('(');
    if (pos >= 0)
    {
      functionName = text.substring (0, pos);
      functionText = text.substring (pos + 1, text.length () - 1);
    }
    else
    {
      functionName = "";
      functionText = "";
    }
  }

  @Override
  public Iterator<Value> iterator ()
  {
    return values.iterator ();
  }

  @Override
  public String toString ()
  {
    return String.format ("Function: %s %s", functionName, functionText);
  }
}