public static string GetPreviousWordAtIndex(this ITextDocument document, int index)
{
var lastWordIndex = TextUtilities.GetNextCaretPosition(document, index, LogicalDirection.Backward, CaretPositioningMode.WordBorder);
if (lastWordIndex >= 0 && document.GetLocation(lastWordIndex).Line == document.GetLocation(index).Line)
{
return(document.GetWordAtIndex(lastWordIndex));
}
else
{
return(document.GetWordAtIndex(index));
}
}
