Schadenfreude

OOC is cool.  Yesterday I started writing some code in it after reading about it on the github blog.  Here is the first result:

I’m extremely happy with how well this performs.  Using the latest ooc Java compiler from the github trunk to handle the each() functions, this compiles down to a bunch of C code, and then is automagically compiled behind the scenes into an ELF Binary!  This is totally awesome, and I have to commend nddrylliog and the other contributors for their work on this awesome project.  Now I should use it for something useful :D

A quick note about getting it running on Ubuntu:

sudo apt-get install sun-java6-jdk
git clone git://github.com/nddrylliog/ooc.git
cd ooc
JAVA_HOME=/usr/lib/jvm/java-6-sun/ make

At least, that’s how I did it. Then I compile all my ooc with a Makefile like this:

INPUTS=$(wildcard *.ooc)
TARGETS=$(patsubst %.ooc, %, $(INPUTS))

all: $(TARGETS)

%: %.ooc
  java -jar ~/repos/ooc/bin/ooc.jar $@

That will compile all ooc files in the directory.

Uncategorized awesome, code, gist, github, irc, language, ooc

This is possibly the best one-liner I’ve ever written:

gcc -x c -o /tmp/out - -lgmp <<< '#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <gmp.h>
void omg_i_love_leonardo_of_pisa(uint32_t num, mpz_t * result) { mpz_t retval, last, tmp; mpz_init(retval);
 mpz_init(last); mpz_init(tmp); uint32_t i = 1; if(num == 0) return; mpz_set_ui(retval, 1U);
mpz_set_ui(last, 0U); for(; i < num; i++) { mpz_set(tmp, retval); mpz_add(retval, retval, last);
mpz_set(last, tmp); } mpz_set(*result, retval); } int main() { uint32_t num; mpz_t fibo; mpz_init(fibo);
omg_i_love_leonardo_of_pisa(1000001, &fibo); mpz_out_str(stdout, 10, fibo); printf("\n"); return 1; }
' && time /tmp/out

It compiles a C program given from STDIN, puts it in /tmp/out, and runs it with time to find the time it takes to run. It generates the 1,000,000th Fibonacci number. Try it!

Uncategorized awesome, bash, c, code, linux, one-liner, programming, shell

There’s this site that has an equipment exchange I wanted to keep track of. Yet, it’s done with what seems to be a custom php file rather than vbulletin, so none of the usual RSS feeds from the site apply to it. So, I decided to make a scraper/feed-generator to get me the latest version every 5 minutes and generate a nice RSS feed, so I can view it in Google Reader. The volume of posting is low enough that this won’t be annoying to see in my daily feeds.

I usually use Ruby for this because it offers Hpricot, a very nice and fast scraper and XPath interface. This time, I resolved to find something that does RSS generation better, and I stumbled upon RubyRSS, which happens to be in the core ruby distribution!
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Uncategorized code, generation, gist, github, rss, ruby, rubyrss, scraping, web, xpath

So, today I was invited to Google Group chat for the first time. This would be really cool on a terminal that’s not equipped with an IM client, since it’s all done through the web with flash and magic. But, since I don’t like having 2 IM clients running at the same time (Pidgin and the Flash one from Google), I decided I needed to rip out the Jabber Group Chat Room name from the invite page. I got some tips from this site, and wrote a Greasemonkey script to do so.

All you have to do is copy the room name into the Join Chat window, and put in groupchat.google.com as the server.  I hope you find it useful.  If anyone knows how to make this a link that GNOME will throw at Pidgin, let me know.  That would be awesome.

Get the Script

Uncategorized chat, code, firefox, gchat, gmail, google, google chat, greasemonkey, hack, jabber, javascript, pidgin, script

After obsessing over it today, I decided to write a quick primer on RSA Encryption you can do in your head. It’s pretty simple, and to the point. The numbers are very small. Try it out!

I plan to write some code implementing the algorithm.  That should be fun.

Uncategorized code, encryption, github, learning, rsa, security

I was on IRC tonight and someone was having trouble with their NASM homework. I decided to help them by learning NASM and coding up their homework problem for fun. It was pretty cool.

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Uncategorized assembly, c, code, nasm, programming