private void CreateNormalizedSpans()
{
Int32 startCharacterIndex = _startCharacterIndex;
Int32 length = _text.Length;
NormalizedSpan span = new NormalizedSpan("", "_gap_", _startCharacterIndex, TextFormattingRunProperties.DefaultProperties);
_startNode = span;
for (Int32 i = 0; i < _classificationSpanList.Count; i++)
{
ClassificationSpan span2 = _classificationSpanList[i];
Span span3 = span2.Span();
if (span3.Start >= (_startCharacterIndex + length))
{
break;
}
Int32 num4 = span3.Start - startCharacterIndex;
if (num4 > 0)
{
NormalizedSpan span4 = new NormalizedSpan(_text.Substring(startCharacterIndex - _startCharacterIndex, span3.Start - startCharacterIndex), "_gap_", startCharacterIndex, TextFormattingRunProperties.DefaultProperties);
span = span.AddNode(span4);
startCharacterIndex += num4;
}
else if (num4 < 0)
{
Int32 num5 = span3.Length + num4;
if (num5 <= 0)
{
continue;
}
span3 = new Span(startCharacterIndex, num5);
}
if (span3.Length > 0)
{
Int32 num6 = startCharacterIndex - _startCharacterIndex;
TextFormattingRunProperties textProperties = _classificationFormatMap.GetTextProperties(span2.Classification);
if ((span3.Length + num6) > length)
{
Int32 num7 = length - num6;
NormalizedSpan span5 = new NormalizedSpan(_text.Substring(span3.Start - _startCharacterIndex, num7), span2.Classification, span3.Start, textProperties);
span = span.AddNode(span5);
startCharacterIndex = _startCharacterIndex + length;
break;
}
NormalizedSpan span6 = new NormalizedSpan(_text.Substring(span3.Start - _startCharacterIndex, span3.Length), span2.Classification, span3.Start, textProperties);
span = span.AddNode(span6);
startCharacterIndex += span3.Length;
}
}
if (startCharacterIndex < (_startCharacterIndex + length))
{
Int32 num8 = length - (startCharacterIndex - _startCharacterIndex);
NormalizedSpan span7 = new NormalizedSpan(_text.Substring(startCharacterIndex - _startCharacterIndex, num8), "_gap_", startCharacterIndex, TextFormattingRunProperties.DefaultProperties);
span = span.AddNode(span7);
}
if (_startNode.Next != null)
{
_startNode = _startNode.Next;
_startNode.Previous = null;
}
}
