private void InsertInternal(int offset, string text)
{
LineSegment byOffset = this.lineCollection.GetByOffset(offset);
LineManager.DelimiterSegment delimiterSegment = this.NextDelimiter(text, 0);
if (delimiterSegment == null)
{
byOffset.InsertedLinePart(offset - byOffset.Offset, text.Length);
this.SetSegmentLength(byOffset, byOffset.TotalLength + text.Length);
return;
}
LineSegment lineSegment = byOffset;
lineSegment.InsertedLinePart(offset - lineSegment.Offset, delimiterSegment.Offset);
int num = 0;
while (delimiterSegment != null)
{
int num1 = offset + delimiterSegment.Offset + delimiterSegment.Length;
int num2 = byOffset.Offset;
int totalLength = num2 + byOffset.TotalLength - (offset + num);
this.lineCollection.SetSegmentLength(byOffset, num1 - num2);
LineSegment lineSegment1 = this.lineCollection.InsertSegmentAfter(byOffset, totalLength);
byOffset.DelimiterLength = delimiterSegment.Length;
byOffset = lineSegment1;
num = delimiterSegment.Offset + delimiterSegment.Length;
delimiterSegment = this.NextDelimiter(text, num);
}
lineSegment.SplitTo(byOffset);
if (num != text.Length)
{
byOffset.InsertedLinePart(0, text.Length - num);
this.SetSegmentLength(byOffset, byOffset.TotalLength + text.Length - num);
}
}
void InsertInternal(int offset, string text, bool editLineState)
{
LineSegment segment = lineCollection.GetByOffset(offset);
DelimiterSegment ds = NextDelimiter(text, 0);
if (ds == null)
{
// no newline is being inserted, all text is inserted in a single line
segment.InsertedLinePart(offset - segment.Offset, text.Length);
SetSegmentLength(segment, segment.TotalLength + text.Length);
return;
}
LineSegment firstLine = segment;
firstLine.InsertedLinePart(offset - firstLine.Offset, ds.Offset);
int lastDelimiterEnd = 0;
while (ds != null)
{
// split line segment at line delimiter
int lineBreakOffset = offset + ds.Offset + ds.Length;
int segmentOffset = segment.Offset;
int lengthAfterInsertionPos = segmentOffset + segment.TotalLength - (offset + lastDelimiterEnd);
lineCollection.SetSegmentLength(segment, lineBreakOffset - segmentOffset);
LineSegment newSegment = lineCollection.InsertSegmentAfter(segment, lengthAfterInsertionPos);
if (editLineState)
{
newSegment.State = LineState.Modified;
}
segment.DelimiterLength = ds.Length;
segment = newSegment;
lastDelimiterEnd = ds.Offset + ds.Length;
ds = NextDelimiter(text, lastDelimiterEnd);
}
firstLine.SplitTo(segment);
// insert rest after last delimiter
if (lastDelimiterEnd != text.Length)
{
segment.InsertedLinePart(0, text.Length - lastDelimiterEnd);
SetSegmentLength(segment, segment.TotalLength + text.Length - lastDelimiterEnd, editLineState);
}
}
