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...for the code for the book.

The list archives are here and the project site is here.

...for the code for the book.

The list archives are here and the project site is here.

> don't forget ruby! =)

Right on! Read more about Ruby here, and check out lots of projects using Ruby here - games, sysadmin utilities, wrappers for WxWindows and ImageMagick, and so forth. Good stuff!

....we've been using the Jabber4R Ruby wrapper to route Cougaar status messages for a couple years now.

It's kind of running out of gas on us as our message volume increases, but it's worked well enough so far...

...wrapper in Ruby right here. Could be handy down the road...

...including ant algorithms, simulated annealing, and fuzzy logic is M. Tim Jones' AI Application Programming.

The examples are especially helpful; they're written in nice portable C. I've been working on a little project to translate them to Ruby; porting notes and Gnuplot charts and such are here and the code for the Ant Algorithm translation is here.

...including ant algorithms, simulated annealing, and fuzzy logic is M. Tim Jones' AI Application Programming.

The examples are especially helpful; they're written in nice portable C. I've been working on a little project to translate them to Ruby; porting notes and Gnuplot charts and such are here and the code for the Ant Algorithm translation is here.

...DOOM.

With updated source code available, plenty of improvements, and lots of ways to create your own maps, there's plenty to do before HL2 comes out!

...to send Cougaar society status messages around - we've been able to get around 1100 messages (albeit simple ones) per second.

We're using the Ruby wrapper Jabber4R as well as various GUI clients, and we're using the Jabber 1.4.2 server.

• wxPerl
• wxPython
• wxBasic
• wxLua
• wxJavaScript
• wxJava
• wx4j (alternative Java binding)
• wxRuby
• wxEiffel
• wxHaskell
• wx.NET (C#)

Yup, and there are wrappers for it in a variety of languages:

WxRuby
WxPython

Good stuff.

...can be found here.

I prefer Ruby, but there seem to be a lot of healthy discussions of various language features and ideas across the scripting language community. The "Python comparison page", for example, has a link to John Ousterhout's paper on why scripting languages are useful - even thought he wrote the paper about Tcl, it's just as applicable to Python or Ruby.

For one thing, I don't think gamers will tolerate it. There are pay-to-play MMORPGs now, but people are willing to pay for those because there's a good reason. Servers have to be hosted, content has to be added, players have to be policed. There's no corresponding reason in a single-player game of Half-Life, and there's no evidence to suggest that gamers will be willing to pay monthly if there's no justification for it.

> Give your users Jabber

Yup, Jabber's good stuff. You can script it using Ruby, too, which is nice.

Which alternatives does there exists?
How is this better than the other alternatives?

--
Simon Strandgaard

Is this what it is?

Please feel free to extend the VMS chapter with more examples of logicals, and how the differ from unix/amiga.
VMS & OpenVMS

I don't feel comfordable writing about VMS, because I have absolutely no experience with it. I know of Amiga and Unix.. and thats about it. If you have handson VMS experience, then submit text. Thanks in advance :-)

--
Simon Strandgaard

Is this what it is?

Please feel free to extend the VMS chapter with more examples of logicals, and how the differ from unix/amiga.
VMS & OpenVMS

I don't feel comfordable writing about VMS, because I have absolutely no experience with it. I know of Amiga and Unix.. and thats about it. If you have handson VMS experience, then submit text. Thanks in advance :-)

--
Simon Strandgaard

> Probably a better candidate than Ruby

Oh, I don't know. Ruby has a decent number of tools available. There's mod_ruby and a bunch of templating/web application libraries like Amrita and Cerise.

> you're pushing your Ruby again

Nah, just spreading the joy.

> Love that empty sourceforge site of yours!

Hm. The download area for the mindstorms project is here... I guess I'm not sure what you're referring to...

Ruby
Java
Python

Good times!

BTW: anyone which dare to write a comparison between VMS's logicals and Unix's environment-variables? Are VMS logicals more secure? Wikipage Of VMS.

--
Simon Strandgaard

> a sourceforge site with nothing on it!

Hm. There's a release here with both a RubyCon '03 presentation and the code in there...

If you're doing Lego-Mindstorms development, consider the Ruby Lego-Mindstorms development kit.

Ruby's a nifty language and is (I think, anyway) well suited to stuff like this.

p = Project.new
14.times {
p.design && p.build && p.test && p.document
}

It's up to the folks running the corporations to do what they want. We pay for and administer RubyForge because Ruby helps us do our job (application integration and such-like) faster and better.

The Ruby community gets a nifty resource, we get the company name on the front page - everybody's happy. What's not to like?

mp3taglib is a id3v1/id3v2 mp3 tagging library for ruby, based on id3lib. At
this early stage it already supports most of the fields of id3v2 tags. Mp3
encoding informations can also be retrieved.

"Now, should an aggregator be polling every 30 minutes? The convention early
on was no more than once an hour. But newer aggregators either never heard of
the convention or chose to ignore it. Some aggregators let the users scan
whenever they want. Please don't do that. Once an hour is enough. Otherwise
bandwidth bills won't scale."

[tom@rubyforge httpd]$ tail -10000 access_log | grep "16/Dec" | grep export |
grep 66.68 | wc -l
19
[tom@rubyforge httpd]$

map = Map.new
level = Level.new(10,10)
level.add_sector(0,0,5,5)
level .set_spawn_point(2,2)
map.add(level)

That sounds a lot like Markov chains and bigrams (or trigrams). Build a table of words, put together some "this follows that x% of the time", and off we go.

Here's some Ruby code that implements a simple bigram model - it forms sentences using some quotes from C. S. Lewis as a corpus. It's based on examples from M. Tim Jones' excellent book AI Application Programming.

[tom@hal gforge]$ grep -rn " IN (" gforge/ | wc -l
34
[tom@hal gforge]$

> There's also bindings to [...] Ruby

Yup, it's on RubyForge - WxRuby.

...to manage its projects - right here.

Seems like GForge is all over the place... here is a list of some known sites, and of course - shameless plug - RubyForge.

Another hard bit is that the Postgres replication doesn't support sequences - see the details in the aptly named "Things to Remember" section of the installation documentation.

So if your master fails, presumably you have to recreate the sequences starting at a number high enough to avoid conflicting numbers before switching over to a slave. Seems like this could be a problem.

Nonetheless, Postgres is cruising away on RubyForge; 300,000 records and counting...

I think Mauricio is in the process of moving it over to RubyForge...

...are available on RubyForge. Makes it even easier to reuse .NET code...

> or better yet rsync

Yup. On RubyForge we run a rsync job over stunnel to iBackup every 6 hours.

This works like a charm; it only takes a minute or two to run (that is, except after the nightly Postgres backup, when it takes about 20 minutes to send over the new database dump). It's an easy way to have an offsite backup.

...there's a Ruby to .NET bridge over on RubyForge.

Not sure how much effort it would be to get it working with dotgnu as well... maybe it wouldn't be too bad since much of the connector code appears to be in lib/dotnet/bridge.rb. Lots of C# code in there, though.

> it is now the standard for companies needing a
> low or mid range solution

Is it?

> it improves with each iteration.

As does Postgres.

> Our needs aren't high-end, but it handles
> our 300GB databases

That's a lot higher-end than where I'm at :-). But PG handles RubyForge - 180,000 records, about 20K hits per day - just fine.

Right on. I run RubyForge on commodity hardware - 2.4 GHz CPU, IDE, 512 MB RAM. It handles an average of 24K hits per day plus a couple hundred emails plus CVS and SSH, no problem. If you know even a little bit about what you're doing, low end hardware can take you a long way.

wxRuby is about to go 1.0, and has a new entry on (the very OS-X-looking) RubyForge. Ruby itself is a great language!

wxRuby is about to go 1.0, and has a new entry on (the very OS-X-looking) RubyForge. Ruby itself is a great language!

And a mirror on RubyForge.