// constructor
public AttributedStringIterator(Attributes[] attributes, int beginIndex, int endIndex, AttributedString aString)
{
attString = aString;
if (beginIndex < 0 || beginIndex > endIndex || endIndex > attString.Length())
{
throw new ArgumentException("Invalid substring range");
}
this.beginIndex = beginIndex;
this.endIndex = endIndex;
this.currentIndex = beginIndex;
UpdateRunInfo();
if (attributes != null)
{
relevantAttributes = (Attributes[])attributes.Clone();
}
}
