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//
//
//
final public class Flonum extends LispObject{
  double val;
  Flonum(double val){ this.val=val; }
  Flonum(String name){
    int index=name.indexOf('^');
    double pow=0.0;
    if(index!= -1){
      pow=new Double(name.substring(index+1)).doubleValue();
      name=name.substring(0,index);
    }
    this.val=new Double(name).doubleValue()*Math.pow(10,pow);
  }
  public int getType(){ return FLONUM; }
  public double getVal(){ return val; }
  public String toString(){ return ""+val; }
  public static boolean isFlonumString(String name){
    int index=name.indexOf('^');
    if(index!= -1){
      if(!Fixnum.isFixnumString(name.substring(index+1))) return false;
      name=name.substring(0,index);
    }
    index=name.indexOf('.');
    if(index!= -1){
      if(name.length()==1) return false;
      if(!Fixnum.isFixnumString(name.substring(index+1))) return false;
      name=name.substring(0,index);
    }
    if(!Fixnum.isFixnumString(name)) return false;
    return true;
  }
}