package jxl.biff.formula;

import java.util.Stack;
import jxl.biff.IntegerHelper;

class MemFunc extends Operand implements ParsedThing {
  private int length;
  
  private ParseItem[] subExpression;
  
  public int read(byte[] data, int pos) {
    this.length = IntegerHelper.getInt(data[pos], data[pos + 1]);
    return 2;
  }
  
  public void getOperands(Stack s) {}
  
  public void getString(StringBuffer buf) {
    if (this.subExpression.length == 1) {
      this.subExpression[0].getString(buf);
    } else if (this.subExpression.length == 2) {
      this.subExpression[1].getString(buf);
      buf.append(':');
      this.subExpression[0].getString(buf);
    } 
  }
  
  byte[] getBytes() {
    return null;
  }
  
  int getPrecedence() {
    return 5;
  }
  
  public int getLength() {
    return this.length;
  }
  
  public void setSubExpression(ParseItem[] pi) {
    this.subExpression = pi;
  }
}