public static void StartOfWord(this EnvDTE80.DTE2 dte2, Boolean extendSelection)
{
if (!dte2.TryGetTextView(out var vsTextView))
{
return;
}
var wpfTextView = vsTextView.GetWpfTextView();
if (!extendSelection && !wpfTextView.Selection.IsEmpty)
{
wpfTextView.Selection.Select(wpfTextView.Selection.ActivePoint, wpfTextView.Selection.ActivePoint);
}
var caret = wpfTextView.Caret;
var operations = dte2.GetEditorOperations().GetEditorOperations(wpfTextView);
if (caret.InVirtualSpace)
{
operations.MoveToEndOfLine(extendSelection);
return;
}
var point = caret.Position.BufferPosition;
if (point.Position == 0)
{
return;
}
var navigator = dte2.GetTextStructureNavigatorSelector().GetTextStructureNavigator(wpfTextView.TextBuffer);
if (point == caret.ContainingTextViewLine.Start)
{
operations.MoveLineUp(extendSelection);
operations.MoveToLastNonWhiteSpaceCharacter(extendSelection);
if (navigator.GetExtentOfWord(caret.Position.BufferPosition).IsSignificant)
{
operations.MoveToNextCharacter(extendSelection);
}
return;
}
var extent = navigator.GetExtentOfWord(point - 1);
for (Int32 i = point; i > extent.Span.Start; i--)
{
operations.MoveToPreviousCharacter(extendSelection);
}
}
public static void EndOfWord(this EnvDTE80.DTE2 dte2, Boolean extendSelection)
{
if (!dte2.TryGetTextView(out var vsTextView))
{
return;
}
var wpfTextView = vsTextView.GetWpfTextView();
if (!extendSelection && !wpfTextView.Selection.IsEmpty)
{
wpfTextView.Selection.Select(wpfTextView.Selection.ActivePoint, wpfTextView.Selection.ActivePoint);
}
var caret = wpfTextView.Caret;
var point = caret.Position.BufferPosition;
if (point.Position == wpfTextView.TextSnapshot.Length)
{
return;
}
var operations = dte2.GetEditorOperations().GetEditorOperations(wpfTextView);
if (point == caret.ContainingTextViewLine.End)
{
operations.MoveToStartOfNextLineAfterWhiteSpace(extendSelection);
return;
}
var navigator = dte2.GetTextStructureNavigatorSelector().GetTextStructureNavigator(wpfTextView.TextBuffer);
var extent = navigator.GetExtentOfWord(point);
if (!extent.IsSignificant)
{
for (int i = 0; i < extent.Span.Length; i++)
{
operations.MoveToNextCharacter(extendSelection);
}
EndOfWord(dte2, extendSelection);
return;
}
for (Int32 i = point; i < extent.Span.End && i < caret.ContainingTextViewLine.End; i++)
{
operations.MoveToNextCharacter(extendSelection);
}
}
