Martin Becker will give a talk at YAPC::Europe 2012 described as
Ternary or three-valued logic is a logic in which there are three truth values indicating true, false and some third value, often used to denote uncertainty or indefiniteness. A three-valued information unit is called a trit.
It would be technically feasible to build digital systems based on trits, using memory units with three distinct states (flip-flap-flops) and logic circuitry with three distinct input/output levels, like positive, negative and zero voltage.
This talk explores basic operations and other important properties for a hypothetical ternary computer, as implemented in the Perl library Math-Logic-Ternary. It turns out that ternary logic gives rise to uniqe features such as a very simple and symmetric numeral system.
Thanks to all who came to YAPC::NA this year. However, YAPC isn’t over until you blog about your experience. Tell the world why you came, what you did, and why they should go next year!
I just wanted to say how grateful I am for the live streams broadcasting these days!
With the time shift to my place it allows me to drop into yapc::na after my workday and enjoy some talks.
This is definitely a very cool feature of the Perl community.
(I also would like to encourage everybody who watches and appreciates the live streams to drop a little thank-you note here.)
I've been working on WhiteHat's new sourcecode scanner, and one of the things we need to do is transmit snippets of source code around inside of XML. Since many XML parseres are notoriously sensitive to non-ASCII characters, even in CDATA, we decided that the simplest thing to do was Base64-encode them. This shouldn't be a problem, right?
Well, no. Turns out that MIME::Base64 is very picky itself about encoding things properly. If you hand it UTF-8, it screeches, "Characters with more than 8 bits?! Heavens!" and falls over. There's an incantation noted it its documentation that will let you handle it, but it didn't, at least for me, work all that dependably.
A little poking around turned up
Encode::Encoder
, which works like a charm, and is very clean:
Jon Allen will give a talk at YAPC::Europe 2012 described as
Installing CPAN modules and managing their dependencies has got much easier over recent years thanks to tools like cpanm. But what about the DarkPAN, i.e. all the code that *isn't* on CPAN?
In this talk we will look at how to build our own private CPAN, upload our own DarkPAN modules, and easily mix private and public dependencies.
From this we will build cross-platform installation packages which can be used on any system with Perl installed (no external dependencies or even Internet access required).
a couple of weeks ago, we started perlybook.org. It is a service that creates ebooks for your favourite Perl module documentation. So you would be able to read the Moose documentation while you sit on the Preikestolen (The "Move to Moose hackathon" will be right after YAPC::Europe).
It makes heavy use of the MetaCPANAPI, so we do not need to have our own cpan mirror. To create the ebooks, we use EPublisher with its epub and mobi plugins.
We will use this blog to announce news regarding perlybook.org and the modules it depends on. And we will create a list of the hottest ebooks each week.
This is for a limited and unknown amount of time, but you should be able to read my book online for free. Read on for a bit of explanation about what's going on and for some important caveats (and the URL).
Barbie will give a talk at YAPC::Europe 2012 described as
Labyrinth is a codebase for presenting websites, originally designed and developed in 2002. It's original design goal was to be a "Website In A Box", meaning that it could be installed on a web server ready and complete to server a website. However, it can additionally be extended, providing a framework for those who wish to add their own requirements to the workflow and functionality.
As such, this talk is an introduction to both the web framework and stand-alone aspects of Labyrinth.
If you visit the Silicon Valley Perl Mongers Meetup site, you'll see that I'm now listed as the organizer. This is not strictly true - Ian Kluft is still our primary organizer, but due to the fact that Meetup sends out a metric buttload of mail - I have now witnessed this as organizer - he missed the "OMG SVPERL GONNA DIE" message that got sent, repeatedly, to all the SVPerl members when the Meetup bill was due in a week.
Everyone was getting nervous, so I jumped in and paid the bill, partly because everyone was getting nervous we hadn't heard from Ian, and partly because WhiteHat Security, my current employer (who I love, and you should come work here if you are a good Perl programmer - heck, if you're a good Python or Ruby programmer, come and we'll teach you Perl) said they'd pick up the tab.
So, woo, I'm an organizer. I just like having an excuse to give talks!
So you're sitting at home, preparing for a karaoke night, waiting for your friend to arrive. She comes in, rings the doorbell and you're thinking "fuck! I'm upstairs, and she's downstairs and I have to open the door for her (because it's locked) but I'm busy changing my clothes." What do you do? WHAT DO YOU DO?
What if you could let her in using you phone while you're still upstairs getting yourself ready? Arduino could be used for that. And the following is a theoretical (and slightly bit practical) explanation on how you could use Arduino and Dancer to accomplish this.
Arduino is a basic unit. You can set bits on and off. You can hook the bits to other devices (sound, video, screens, you name it!). You can write firmware to it. That's awesome. You can hook up more shields (components) to it. That means you can have additional hardware like an ethernet hookup or whathaveyou.
We finally fixed a bug in our voting app, so we were able to vote the talk proposals. We have accepted lots of talks (thanks for the great proposals). Even those talks that have not been accepted yet are not rejected at all. They will be reconsidered in the next round of voting...
So today and in the next few days, you'll see a lot of blog posts introducing the accepted talks.
The raffles are a big hit so far. If you’re at YAPC::NA this year, be sure to get your chance to win the nearly $10,000 worth of prizes we have in our raffles.
I am very
pleased to announce Marpa::R2
-- "Release 2" of the Marpa parser.
For those unfamiliar,
the
Marpa algorithm
is something new in parsing --
it parses anything you can write in BNF and,
if your grammar is in one of the classes currently in practical use,
it parses it in linear time.
Marpa::R2's parse engine is written in optimized C,
so that Marpa::R2's speed is competitive with parsers of far less power.
An important feature of the Marpa
algorithm is "situational awareness".
Marpa knows at every point in the parse exactly how far it
has progressed in each rule,
and can share this information with the application.
The advantages of this go beyond error detection --
Marpa's situational awareness is accurate, graceful
and fast enough to be used as a parsing technique in its own
right --
Ruby Slippers parsing.
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Here's a small script which I whipped up just now. I thought of trying out MetaCPAN::API, but after about 5 minutes of trying to find a way to list an author's distributions (and failed), I resorted to a quick hack using Mojo::DOM.
Though many are sticking around to take in all that Madison has to offer, many others are headed back home from YAPC::NA 2012. Safe travels to you all.
So I'm in Madison, Wisconsin for YAPC::NA 2012. Yesterday, I was supposed to meet up at one of the hackathons. I went to the Pyle building and searched the rooms and even accidentally went into brian's workshop (sorry brian!).
When I got to the hackathon room, it was pretty quiet but active. I had met Robert Blackwell two days prior at a dinner and had a lovely conversation and fun time with him. Robert had brought a ton of hardware (11 hours drive!!) and set up an entire room just so we could hack on hardware. Wait. Hardware?
At this point, I should probably mention I'm not a hardware guy. I can hook up the computer, change memory sticks, and I even replaced a CPU once - but that's pretty much it. Hardware is totally out of my league. I really don't understand it, nor was I ever really interested in it.
So I'm there and I just wanna sit and work on pointless boring stuff when Robert says "hey, how about trying Arduino?"
