/// <summary>
/// More readable representation of the object.
/// </summary>
/// <returns></returns>
public override string ToString()
{
StringBuilder builder = new StringBuilder();
builder.Append("<");
builder.Append(_field.ToString());
builder.Append(" => ");
builder.Append("[");
for (int i = 0; i < _positions.Length; ++i)
{
builder.Append(_positions[i]);
builder.Append(", ");
}
builder.Append("]");
return(builder.ToString());
}