||Monday, September 06, 2004
[ note 2004-09-08: an update is available here ]
Over the weekend I managed to update my Symbian Series 60 port of the Io programming language
to the latest Io codebase. There are still a number of issues and
things that don't work right but I'm slowly working through them. The
current major issues are:
What does work:
- Io Exceptions aren't working. They usually crash the interpreter.
- No Symbian library wrappers. So you can only do standard Io language things.
- No user interface routines.
- Main interface of interpreter is not very effective. It only has
two edit boxes. The top one for entering code. The second for showing
the result of evaluations.
- I haven't got a proper registered Uid for the application yet.
- While it runs on a Nokia 3650, I get a panic when attempting to start the interpreter.
Where to from here:
- Most of the Io language appears to work fine including coroutines.
- You can load code stored in the 'Memo' or 'Notes' application. I
transfer files to my phone via bluetooth. These get stored in 'Notes'.
I run Io and load them there.
- Basic asynchronous tcp/ip sockets work.
- Only tested on the Nokia 7610.
The download file iosymbian_0_1.zip
contains an installable .SIS file and some simple example Io programs.
This is not really a uesful release apart from being able to play with
Io on the phone. Remember, only tested on the 7610, I welcome feedback.
- Tidy up the user interface.
- Get exceptions working.
- Wrap a few Symbian libraries.
- Get it working on the Nokia 3650.
- Write a telnet-like server so I can develop code on the phone via a read-eval-print loop accessed from my desktop PC.
Source will be included in future updates and will be folded into the
main Io distribution as I pass updates to the Io author, Steve Dekorte.
Hopefully the next release will be a whole lot more usable.
- Install the .SIS file.
- Send the .io files to the phone and save in the 'Notes' application.
- Start Io.
- Use the 'Start Interpreter' menu item to fire up the interpreter.
- Typing code in the top edit box and using 'Evaluate' will evaluate that code. Try '"hello" print' for example.
- Using the 'Clear' menu item clears out both edit boxes.
- Using 'Load from Notepad' to bring up a list of notepad items.
Select one and it will be loaded in the top edit box and evaluated with
the results appearing in the bottom.
© Copyright 2005 Chris Double.