I believe it is an alternative, though this one is specifically for AXE.

Ahh, if that's the case i don't see why not. Sources are still saved the same way afaict.

BBC BASIC stuff will be totally good, since you're using plaintext. All that would be desirable, unless it's going to have really fancy stuff, would be automatically inserting and  adjusting line numbers.

As in: BBC BASIC needs line numbers like so.

10 PRINT "Hello"
20 GOTO 10

and inserting things between is annoying, since you break the 10-line routine

10 PRINT "Hello"
13 PRINT "THERE"
20 GOTO 10

so ideally a BBC-focused editor would reline 13 to 20, and 20 to 30 and so on, but it's not necessary for this IDE to support BBC basic.

As long as it can save the plaintext to a file, the BBC BASIC App can run *EXEC on it to convert it to bytecode.

Now hold on, I think one of the best parts of programming on the calculator is that it has tokens. People who program Axe or Basic frequently can tell you exactly how to get any command on the calculator in 3 buttons or less, and the fact that one token is comprised of perhaps 6 characters makes programming with tokens very quick.

In your program editor, you aren't using tokens though, and honestly, I think that is a mistake. The reason for this is that the TI-84 keyboard is a little awkward to type on. There are of course people who are quick with it, but those people are in the far minority (and they're faster with tokens). Also, without the token system, people actually have to memorize the names of functions, and while this won't be difficult for experience programmers, it puts a serious learning curve that wasn't there before on new programmers.

So, what I am saying is that if you want your IDE to become popular (and increase coding efficiency ) I think you should stick with tokens.

Ok, I've never used one, so you might be right. Plus, if that's what you want to program with, then you might as well make it.

Good luck

Update !
-The New Project function works. Alpha works just like Control/Shift on the computer. That's how the editor will work. Use 2nd or Enter to validate, Clear to cancel.
-Added the HIDEKB runtime AppVar, generated from scratch by (B)HIDEDAT. It contains the keyboard to ASCII map.
-Optimized the TXT() routine (merged r1 and r5) and moved the 8 bytes buffer it uses for the sprite from L4 to L4+247.
-Added the GETK() routine, an optimized getKey designed for text input, with MultiKey support.
-Fixed a missing ClrDraw at the beginning that caused a weird display half of the time when running with Asm().

Hope you'll enjoy it guys !

Now, to the project manager. Then I'll work on the editor, (de)tokenizer, and the final touches.

Nope, it wasn't RPN. It has a command prompt similar to the TI-68k series (plus a live PrettyPrinted CAS interface). And you programmed on it with HP Basic. I guess you're mislead with the 48/49/50 series.

Edit : GRRRRR Y NO SCREENIES IN WABBIT FOR MAC ?!

Edit 2 : Finally ! Wine FTW. This screenie is pretty slow, but you get to see most of the stuff. What you don't see here is the scrollbar that appears when the list doesn't fit on the screen.