On 6/4/11 10:55 PM, Nevo wrote:
Have you by chance bought that app and actually run on your iPhone/iPad?
Yes. It's only 99 cents. I have not used it extensively, since I only noticed it yesterday afternoon. Also I have not used my iPad in general extensively! I put it on my iPhone also, just for the amusement factor.
I just wonder whether this is console based REPL only, or having graphics support as DrRacket does, how is the performance (pure interpreter mode or JIT enabled?).
Console-based REPL, with a script editor, as Richard has pointed out. I have not tested performance, but the iPad 2 is fairly powerful, and Gambit Scheme has always had good performance, so I expect it will be quite credible.
I'm not clear if Apple actually ever has explicitly restricted applications bundled with a programming language interp, but they seems disallowing application to download *script* or other executable files from other places.
I believe that Apple's restrictions in the past made this impossible, but they relaxed them last June, and people are testing the waters. You can currently cut-and-paste to/from the script editor, and I have found a port of an older version of Python to the iPhone/iPad that in its first revision supports file syncing through iTunes (which Gambit Scheme does not, yet). But dynamic downloading of code is not permitted, still. So, while Gambit has an open-url function, there is probably no way to get data from the Web into a Scheme program, as opposed to bringing up a browser.
I think we can provide a DrRacket like programming/educating/developing environment.
I can't speak to how easy this might be to achieve, or whether it's really worth the effort, but having the student languages available in an iPhone/iPad app would be quite compelling. --PR
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