lua "lpeg.so" module

jack0088

Hey folks,
I got moonscript up and running on my machine, with some help of the developer.. this was quite awful process... But now I'm ready to begin.
I wanted to try out moonscript with GiderosMobile. Theoretically this should work fine! - BUT I get this error:

Uploading finished. error loading module 'lpeg' from file '/usr/local/lib/lua/5.1/lpeg.so': dynamic libraries not enabled; check your Lua installation stack traceback:

I've checked. The file exists! Also tried terminal:
If I try

$ lua -l lpeg

inside terminal, it works. But why is the error above rising inside GiderosStudio?

Outside of GiderosStudio, moonscript is working very good. I have no problems to require("moonscript"); and require("files"); with *.moon extensions. Compiling and everything else is working also. So this has obviously to to with GiderosStudio.


PS: Also - I don't know if it's my machine or not, but - I've noticed that Studio is lagging .. it has some performance issues.. it kind of slow! And there is no CMD+S to save a file I'm working on??!


-jack0088

atilim

Hi,

lpeg is a C library. If you want, you can add it as a plugin (for iOS and Desktop, not Android yet).

Yes, 2012.2 has a lagging issue on some machines and it's solved. We'll release 2012.2.1 in a couple of days (most probably tomorrow).

btw, cmd+s is working on me?

jack0088

Is there a tutorial on how to add this lpeg plugin to my desktop and iOS devices? Very important for me
-
I've edited a file (main.lua) hit CMD+S and nothing happening. Inside the Menu bar is no entry to save a file - just one for saving whole project. But this saves not the current file! The dot above (indicating that the file was modified is not disappearing) and I can only save if i close the file. Then a window pops up and asks me if i want those changes to be saved...

atilim

For iOS devices (or iOS simulator) it's easy:

1. copy lpeg.c and lpeg.h to the Plugins directory of GiderosiPhonePlayer Xcode project
2. create lpeg_stub.cpp with this content in Plugins directory

/*   This code is MIT licensed, see <a href="http://www.opensource.org/licenses/mit-license.php" rel="nofollow">http://www.opensource.org/licenses/mit-license.php</a> (C) 2010 - 2012 Gideros Mobile   */   #include "gideros.h"   extern "C" { int luaopen_lpeg(lua_State *L); }   static void g_initializePlugin(lua_State* L) { lua_getglobal(L, "package"); lua_getfield(L, -1, "preload");   lua_pushcfunction(L, luaopen_lpeg); lua_setfield(L, -2, "lpeg");   lua_pop(L, 2); }   static void g_deinitializePlugin(lua_State* L) {   }   REGISTER_PLUGIN("LPeg", "1.0")

3. add lpeg.c, lpeg.h and lpeg_stub.cpp to the GiderosiPhonePlayer Xcode project

But for desktop, adding lpeg is complicated. Therefore with the next version, I can provide an official lpeg plugin.

-
I really don't know why CMD+S doesn't work for you. btw, which version are you using?

jack0088

ist would be nice if you provide both iOS and desktop implementation with the next release. until then I try your suggestion for iOS.
-
I'm using the official 2012.2 version

atilim

I'll look at the CMD+S issue but I'm not sure I can catch a clue. Is there a possibility that a 3rd party application installed on your Mac interfering with CMD+S?

jack0088

Nope. Worked since today always! Also it worked in the latest Beta. In other apps it works NOW too. But not in the new Gideros. I'm not an expert, but since there is no menu entry .. it doesn't work - it just can't I think.

I can make a video if you like, and email it to you.. Maybe this helps somehow.

atilim

Thank you. let me look at it.

jack0088

PS: are you sure that lpeg is a C lib? I have just this one lpeg.so file inside the Lua installations path, and no one of the above suggested... OK, i think I have to rely and waitin till you implement it
I would be honestly thankful, if you could make those two plugins (for iOS and Desktop). btw. Have you looked at MoonScript?
-
I'll make the video grab tomorrow, as soon as I can! - I mean today... it's 01:06 right now. I'm tired a bit)))

MikeHart

Just out of curiousity, why do you want to use a script language inside a script language?

jack0088

I don't know if I'll use it in development later on, but I wanted to try it out, because its simple and quick to write. Also I wanted to support the author, because I like what he does.
I'm just as curious as you - it's that simple

atilim

btw, you can download the C code of LPeg from http://www.inf.puc-rio.br/~roberto/lpeg/#download

Although I appreciate the effort behind MoonScript, I don't feel myself confortable while using languages like MoonScript or CoffeeScript.

jack0088

Like I said - I maybe won't use this in production, but its nice to try!
Also GiderosMobile would not suffer from it, because there are maybe some devs who will use moon with Gideros and every member is a Plus! So why not implementing this little plugin and let user decide himself about how he will approach..
Gideros always cared and always let decide! And thats fantastic!

#Edit: @Atilim: you got an eMail

atilim

totally agree and I got it. thanks for the detailed video