VisualD modding

[Johnson Jones via Digitalmars-d-ide]

So, I'd like to fix some of visual D's navigation and editing 
logic and possibly implement something like elastic tabs: 
http://nickgravgaard.com/elastic-tabstops/

1. Backspace and delete should be tab aligned and use elastic 
space.

2. Indention on new line should not add spaces(it currently does 
and screws things up as things are no longer aligned and it is 
very difficult to realign stuff.

3. Indentation should use previous indentation when using tab or 
enter, unless empty line.

I've went ahead and added a property called elasticSpace to 
visual D's properties(should be in the tab section I suppose but 
I didn't wanna have to figure that mess out).



propertypage: https://justpaste.it/1a1if

dpackage: https://justpaste.it/1a1ig

This do add it to the first entry and defaults it to true but 
that can easily be fixed.

The real work is to consume all spaces, working backwards, when 
hitting backspace and to consume all spaces forward when hitting 
delete. Also dealing with other the tab and enter key 
appropriately.

TabSanity uses the code like

https://justpaste.it/1a1ij

Anyways, I'm at the following location in viewfilter.d and a 
little lost(well, time constraints).


The backspace key is handled as so:

			// Handle backspace
			case ECMD_BACKSPACE:
				if(mCodeWinMgr.mSource.IsCompletorActive())
					initCompletion(false);
				if (Package.GetGlobalOptions().elasticSpace)
				{
					mView.GetCaretPos(&line, &idx);

					dchar ch = pvaIn.uiVal;
				}
				goto case;

in which I've added the new code.

but it's a little difficult to navigate through the code. I think 
with the proper mapping maybe it is possible almost directly copy 
and paste the tabsanity code.

In any case, I figured I'd let you have a shot at it first if you 
want since your probably more familiar with it than me(and since 
debugging is extremely slow with this sorta thing I'll probably 
burn a lot more time than you would).

Thanks