"New Scope" Macro for Visual Studio - visual-studio

Question

I'm trying to create a new macro that takes the currently selected text and puts curly braces around it (after making a newline), while, of course, indenting as needed.
So, for example, if the user selects the code x = 0; and runs the macro in the following code:
if (x != 0) x = 0;
It should turn into:
if (x != 0)
{
x = 0;
}
(Snippets don't help here, because this also needs to work for non-supported source code.)
Could someone help me figure out how to do the indentation and the newlines correctly? This is what I have:
Public Sub NewScope()
Dim textDoc As TextDocument = _
CType(DTE.ActiveDocument.Object("TextDocument"), TextDocument)
textDoc.???
End Sub
but how do I figure out the current indentation and make a newline?

Answer 1

Sub BracketAndIndent()
Dim selection = CType(DTE.ActiveDocument.Selection, TextSelection)
' here's the text we want to insert
Dim text As String = selection.Text
' bracket the selection;
selection.Delete()
' remember where we start
Dim start As Integer = selection.ActivePoint.AbsoluteCharOffset
selection.NewLine()
selection.Text = "{"
selection.NewLine()
selection.Insert(text)
selection.NewLine()
selection.Text = "}"
' this is the position after the bracket
Dim endPos As Integer = selection.ActivePoint.AbsoluteCharOffset
' select the whole thing, including the brackets
selection.CharLeft(True, endPos - start)
' reformat the selection according to the language's rules
DTE.ExecuteCommand("Edit.FormatSelection")
End Sub

Answer 2

textDoc.Selection.Text = "\n{\n\t" + textDoc.Selection.Text + "\n}\n"
Of course the amount of \t before the { and } and Selection depend on the current indention.
Since there is a difference between selected Text and Document data, it's hard to find out where the cursor is within the document's data (at least in Outlook it is).
The only way I figured out how to do this in Outlook is to actually move the selection backwards until I got text that I needed, but that resulted in undesirable effects.
Try taking the selection start, and using that position in the document text, looking at that line and getting the amount of tabs.
I would think there wouldn't be formatting characters in VStudio.