public override TextRange GetTextRange(TextPoint startPoint, TextPoint endPoint)
{
if (startPoint == null)
{
throw new ArgumentNullException("startPoint");
}
if (endPoint == null)
{
throw new ArgumentNullException("endPoint");
}
if (!object.ReferenceEquals(startPoint.TextBuffer, this))
{
throw new ArgumentException(Strings.TextPointFromWrongBuffer);
}
if (!object.ReferenceEquals(endPoint.TextBuffer, this))
{
throw new ArgumentException(Strings.TextPointFromWrongBuffer);
}
return(_bufferPrimitivesFactory.CreateTextRange(this, startPoint, endPoint));
}
public override TextRange GetCurrentWord()
{
// If the line is blank, just return a blank range for the line
SnapshotPoint currentPoint = AdvancedTextPoint;
ITextSnapshotLine line = currentPoint.GetContainingLine();
if (currentPoint == line.Start && line.Length == 0)
{
return(_bufferPrimitivesFactory.CreateTextRange(_textBuffer, this, this));
}
TextExtent textExtent = GetTextExtent(CurrentPosition);
// If the word is not significant, then see if there is a significant word right before this one,
// and return that instead to mimic VS 9 behavior.
if (!textExtent.IsSignificant)
{
if ((textExtent.Span.Start > 0) && (textExtent.Span.Length > 0))
{
if (textExtent.Span.Start == CurrentPosition)
{
if (!char.IsWhiteSpace(_textBuffer.AdvancedTextBuffer.CurrentSnapshot[textExtent.Span.Start - 1]))
{
textExtent = GetTextExtent(textExtent.Span.Start - 1);
}
}
else if (CurrentPosition == EndOfLine)
{
// If this text point is on the end of the line, then check to see if there is a word
// just before the whitespace.
if (!char.IsWhiteSpace(_textBuffer.AdvancedTextBuffer.CurrentSnapshot[textExtent.Span.Start - 1]))
{
TextExtent newExtent = new TextExtent(GetTextExtent(textExtent.Span.Start - 1));
textExtent = new TextExtent(new SnapshotSpan(newExtent.Span.Start, textExtent.Span.End), true);
}
}
}
}
TextPoint startPoint = Clone();
startPoint.MoveTo(textExtent.Span.Start);
TextPoint endPoint = Clone();
endPoint.MoveTo(textExtent.Span.End);
return(_bufferPrimitivesFactory.CreateTextRange(_textBuffer, startPoint, endPoint));
}
