Hi.

Maybe this is a dumb question, but I can't find the lua executable in the latest SDK (3.10).
Where do I find it?


Manfred

indeed, a good question!
by the way why this time "sdk-source" but not "sdk"?

[ Editiert durch polluks 04.02.2016 - 08:40 ]

Don't we already have a lua interpreter?
From Krashan!

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Huh? Both packages were released at the same time. It seems, though, that lua didn't get packaged in the bundle. I'll try to correct that in the next few days.

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Yes, indeed. It comes with MorphOS itself and won't need any installation. I don't know why there will be another one in SDK then... maybe direct compatibility with Linux etc scripts? The one provided with MorphOS has couple differences to general implementations (to be integrated better in MorphOS way).

It'd recommend to make the scripts to work with the bundled Lua instead of probably more *nixish one in SDK. It's always nice if the stuff works without needing to install anything extra.

[ Edited by jPV 26.01.2016 - 16:53 ]

Why actually Lua?
Isn't Arexx good enough? As a pretty much first time Arexx user the language actually feels kind of fresh and it is very much integrated into the OS.

For application development I'd much rather would like to have a modern, state-of-the-art language. Like Swift, Go or Rust.
One that is object-oriented (Yeah, OK, Rust is not OO), functional, statically typed and possibly can do type-inference.
I think that would attract more people do to development.


Manfred

AFAIK Arexx isn't fully implemented in the OS. You need the 68k library.

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Right. Wasn't there a bounty for a PPC port?


Manfred

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Unfortunately it seems that ARexx is a dead end, no matter how nice it has been. There isn't native ARexx implementation and you need an old 3rd party 68k library to get it work fully. BTW. OS4 is in the same situation, even they don't have PPC native ARexx, because it's originally written in 68k assembly and it'd be a huge task to rewrite it from scratch. 68k library has worked for now, but it'll stop working with the ISA switch in the future, and of course it's not good that it isn't bundled and working out-of-the-box with the OS. There's been talks about native re-implementation for MorphOS since the day 1, but it certainly feels very unlikely to happen now after 15 years or so.

Lua on the other hand is a modern mainstream scripting language. It's also lightweight, which suits the MorphOS philosophy. What's great with the MorphOS implementation is that it can be used to replace ARexx scripts, because you can use the existing ARexx ports from Lua and all ARexx functions of all legacy and new programs are usable with Lua scripts. You can do pretty much everything what you'd do with ARexx, but with modern and native alternative. The great legacy standards which have been build with ARexx can be inherited with Lua, and I find it worth to support and move on with :)

Lua has no support for function hosts, for example you cannot access the locale.library
Lua is not Amiga like, see http://stackoverflow.com/questions/8886615/lua-how-to-do-internationalization
I need full integration, no hype language.

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You could actually write a plugin for it in C, adding locale.library support. I know this is not for everybody, but lua is something I rely on now for my MorphOS projects, so I saw no reason not to add it. Same goes for perl, really (and that one builds most of the SDK, from parts of syntax hilighting to the autodocs).

Ok, you can write a plugin for it in C, I write just one line
Code:done.
Lua is not bad but "modern" not always means better

[ Editiert durch polluks 28.01.2016 - 09:19 ]

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Doesn't AROS has a working Arexx implementation, at least partial? And they can compile against a variety of architectures.
It could be extended so that existing Arexx programs will continue to work.


Manfred

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Indeed, the interpreter is ready http://aminet.net/package/dev/lang/ReginaMOS
you just have to create a library out of it...

I'm wondering if stuff like RMH, RxSerial, RxMUI still works with this?


Manfred