We closed this forum 18 June 2010. It has served us well since 2005 as the ALPHA forum did before it from 2002 to 2005. New discussions are ongoing at the new URL http://forum.processing.org. You'll need to sign up and get a new user account. We're sorry about that inconvenience, but we think it's better in the long run. The content on this forum will remain online.
Index › Discussion › General Discussion,  Status › General Questions: a) Lua b) Zip
‹ Previous Topic | Next Topic ›
Page Index Toggle Pages: 1
General Questions: a) Lua b) Zip (Read 2076 times)
silicaroach
General Questions: a) Lua b) Zip
Apr 2nd, 2010, 9:13am  
Hi there.  New to Processing with two questions (not sure which forum they applied to so trying this one):

a) is there any Processing/Lua integration?; and

b) Processing has a library to read zip file content, would there be one for creating zip files?

Thank you for any advice or guidance.  Cheers.
Back to top
 
 
kof
Re: General Questions: a) Lua b) Zip
Reply #1 - Apr 2nd, 2010, 9:39am  
a) I am afraid there is no Processing Lua implementation so far.. but it sounds like interesting project to be done.

b) There is already library for reading zip files, it is made by Seltar: http://libraries.seltar.org/unzipit/
it is hopefully compatible with last version of Processing.

Best,
kof
Back to top
 
kof.exit();
WWW kofatskype 291430758  
silicaroach
Re: General Questions: a) Lua b) Zip
Reply #2 - Apr 2nd, 2010, 9:47am  
Hi Kof. Thank you for the reply.

The question about the zip is for zip file creation not reading.  I have an algorithm that has to dynamically compress individual files and concatenations of files.  I have to be able to control the block size of the compressor too.

Cheers
Back to top
 
 
kof
Re: General Questions: a) Lua b) Zip
Reply #3 - Apr 2nd, 2010, 11:06am  
Hi silicaroach,

If you wish to have more control over zip, native java can do this trough "java.util.zip"  package ..reading following link should help you to get it work:
http://java.sun.com/developer/technicalArticles/Programming/compression/

good luck,
kof
Back to top
 
kof.exit();
WWW kofatskype 291430758  
PhiLho 
Re: General Questions: a) Lua b) Zip
Reply #4 - Apr 2nd, 2010, 12:07pm  
Good questions!
I know at least three different implementations of Lua in Java (thus, usable in Processing).
One LuaJava just use JNI to bind to Lua library: very faithful but less portable, harder to use in applets, etc.
Another (Kahlua) recreated Lua in Java, leveraging the native garbage collector, low tech enough to be used in mobiles (MIDP).
A third one, Jill is also pure Java, managed by Nokia, so working on mobiles too.
There is also Lua4J...

You might have guessed, I am a long time fan of Lua, reading its mailing list for years... For the curious, I recommend to take a look at Lua, it is an elegant language, easy to learn yet powerful, small and fast: it is well suited to script an application. I wrote numerous Lua scripts for my favorite editor, SciTE.
Back to top
 
WWW  
silicaroach
Re: General Questions: a) Lua b) Zip
Reply #5 - Apr 6th, 2010, 6:56pm  
Can processing make a command line call?  For example, from within a Matlab program I can make a command line call to bzip2.exe .  That allows me to set block size and various other parameters and execute zip/unzip without actually using a Matlab zip library.  Much faster.  

I haven't finished "reading in" to Processing so if the answer is in the documentation somewhere just say so and I'll find it eventually.  

Thanks for all the replies.  Cheers
Back to top
 
 
PhiLho 
Re: General Questions: a) Lua b) Zip
Reply #6 - Apr 7th, 2010, 5:24am  
silicaroach wrote on Apr 6th, 2010, 6:56pm:
Can processing make a command line call

Yes, that's open() (a not-so-intuitive name...).
Back to top
 
WWW  
Page Index Toggle Pages: 1
‹ Previous Topic | Next Topic ›